Recherche Images Maps Play YouTube Actualités Gmail Drive Plus »
Connexion
Les utilisateurs de lecteurs d'écran peuvent cliquer sur ce lien pour activer le mode d'accessibilité. Celui-ci propose les mêmes fonctionnalités principales, mais il est optimisé pour votre lecteur d'écran.

Brevets

  1. Recherche avancée dans les brevets
Numéro de publicationUSRE24906 E
Type de publicationOctroi
Date de publication13 déc. 1960
Date de dépôt14 août 1958
Numéro de publicationUS RE24906 E, US RE24906E, US-E-RE24906, USRE24906 E, USRE24906E
InventeursErwin W. Ulrich
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes: USPTO, Cession USPTO, Espacenet
Pressure-sensitive adhesive sheet material
US RE24906 E
Images(1)
Previous page
Next page
Description  (Le texte OCR peut contenir des erreurs.)

backing 1 ,O'FeJJUre-JQ/UIT/VQ adhesive coaf/ng 0f aCry/me ever copo/ymer [NI/EN role 6 fQw/iv W ULRICH %,4" M Hau A T TOP/W);

United States Patent PRESSURE-SENSITIVE ADHESIVE SHEET MATERIAL Erwin W. Ulrich, Rosemount, Minn., assignor to Minnesota Mining and Manufacturing Company, St. Paul, Mmm, a corporation of Delaware Original No. 2,884,126, dated Apr. 28, 1959, Ser. No. 756,059, Aug. 14, 1958. Application for reissue May 8, 1959, Ser- No. 812,077

1 Claims. 01. 206-59) Matter enclosed in heavy brackets I: appears in the original patent but forms no part of this reissue specification; matter printed in italics indicates the additions made by reissue.

This invention relates to flexible adhesive-coated sheet material, and particularly to pressure-sensitive adhesive sheet products, including adhesive tape.

The present application is a continuation-in-part of my copending application Ser. No. 547,844, filed on November 18, 1955, now abandoned, as a continuationin-part of my earlier application Serial No. 303,820, filed August 11, 1952, now abandoned.

Normally tacky and pressure-sensitive adhesive-coated sheet material is well-known to industry in the form of masking tapes, transparent mending and sealing tapes, and adhesive tapes for other purposes. Typical pressuresensitive adhesive formulas as applied to such tapes contain crude rubber and rosin or various hydrocarbon resins, the blend providing the required four-fold balance of adhesion, cohesion, stretchiness and elasticity. This same required balance of properties is obtained with certain other rubbery materials in the absence of tackifier resins and other modifying agents, certain vinyl polymers such as poly-n-butyl acrylate and polyvinyl n-butyl ether being noteworthy in this respect. These polymers are inherently pressure-sensitive.

Polyvinyl pressure-sensitive adhesives provide good adhesion to many surfaces, do not deteriorate on prolonged exposure to sunlight, are clear and colorless in appearance, and do not split or ofiset to the back surface of the tape as it is unwound from roll form. Pressuresensitive tape products coated with these adhesives have proven inefiective, however, for a number of other applications such as fastening cards or pictures on vertical walls, bonding stilt paper labels to metal cans or glass jars, and sealing of kraft paper bags. The packaging of items such as rice or beans is greatly facilitated by the use of pressure-sensitive adhesive tape as a sealing medium, but tape coated with the polyvinyl pressuresensitive adhesives of the prior art has proven inadequate for such use.

The provision of a flexible coated sheet material having a coating of polyvinyl pressure-sensitive adhesive of improved properties is therefore an object of the present invention. A specific object of the invention is the provision of a pressure-sensitive adhesive tape having an improved polyvinyl pressure-sensitive adhesive coating, more particularly a polyacrylate ester pressure-sensitive adhesive coating, capable of adherently bonding to kraft paper under very light and quick fingertip pressure as in the commercial packaging of grains or other common grocery items, and of then remaining firmly adherently bonded to the paper under the normal tension of such packages. Other objects and advantages will become apparent, or will be specifically pointed out, as the description of the invention proceeds.

Examples of vinyl polymers having inherent pressuresensitive adhesive properties are the polymers of the acrylate esters of acrylic acid with non-tertiary alkyl alcohols Re. 24,986 Reissued Dec. 13, 1%60 such as n-butanol, n-pentanol, isopentanol, Z-methyl butanol, 1methyl butanol, l-methyl pentanol, Z-methyl pentanol, 3-metnyl pentanol, Z-ethyl butanol, pentanol-3, 3,5,5-trimethylhexanol, heptanol-3, isooctanol, n-decanol, dodecanol, and the like, as well as various copolymers. The pressure-sensitive adhesive tapers produced therewith are useful for many purposes but are inadequate, as already pointcd out, in respect to the packaging test. Such tapes do not adhere with sufficient intensity to kraft paper under light fingertip pressure. Furthermore they pull away from the paper under constant stress, even though applied with more forceful pressure. Thus they are inen'ective in maintaining paper bags of rice, beans, or other commodities in closed and sealed condition. Likewise they do not adequately bond labels to metal or glass, or cards to painted walls, as already mentioned.

Each of the acrylic acid ester polymers indicated above is sticky or tacky to the touch at room temperature, and is stretchy and elastic. In most if not all cases the polymer has sutficient internal strength or cohesiveness so that when coated on a suitable flexible film or treated paper backing and wound up in roll form it will not split along a central plane, and ofiset to the reverse side of the adjacent convolution, when the strip is unwound fromthe roll. Some of the polymers of the higher alkyl acrylates may show some slight splitting, particularly at moderately elevated temperatures; but even these sticky polymers are generally useful at lower temperatures. The lower alkyl acrylate ester polymers in particular, e.g., nbutyl and isoamyl acrylate polymers, have been used effectively as pressure-sensitive adhesives for a variety of applications, even though being inadequate for more critical uses as shown by failure in the packaging test.

On the contrary, the lower alkyl methacrylate polymers, including n-butyl methacrylate and isoamyl methacrylate polymers, have been shown to be completely nontacky at normal room temperatures and are therefore entirely ineffective as normally tacky and pressure-sensitive adhesive masses.

Surprisingly, it has now been discovered that certain non-tertiary acrylate esters, which by themselves form sticky but internally soft and weak polymers, may be copolymerized with small proportions of additive copolymerizable monomers having strongly polar groups, viz., acrylic acid, methacrylic acid, acrylamide, methacrylamide, itaconic acid, [or acrylonitrile] or mixtures thereof, to provide pressure-sensitive tape adhesive masses which in the form of pressure-sensitive adhesive coatings are high in cohesive or internal strength while still retaining a high degree of stickiness or tackiness. The tape adheres firmly to kraft paper and other surfaces under minimum fingertip pressure. Filled paper bags sealed with such tape, as in the test procedure hereinafter more particularly identified, do not later snap open, but remain closed, and labels adhered with such adhesive totin cans or glass pars do not loosen and spring away, on prolonged storage of the sealed or labeled articles.

A typical pressure-sensitive adhesive tape structure is illustrated in cross-section in the accompanying drawing, showing a segment of a flexible backing material having on one surface thereof a pressure-sensitive adhesive coating of an acrylate ester copolymer as hereinafter described.

Example 1 The homopolymer of isoamyl acrylate is a normally tacky and pressure-sensitive adhesive which, however, is inadequate in packaging and holding properties. Two hundred and eighty-five parts by Weight of isoamyl acrylate monomer was copolymerized with 15 parts of acrylic acid in solution in 700 parts of ethyl acetate solvent, using 2 parts of benzoyl peroxide as catalyst. The $01 tion was held at 60 C. for 5 hours until polymerization was largely completed then at about 70 C. for 1 hour, to provide a viscous solution containing about 30% non-. volatiles. It was diluted to 2025% non-volatiles with heptane, to provide a spreadable viscosity of about 2500 cps., and was then coated in a thin layer on cellophane which had previously been provided with a low-adhesion backsiz e.

The tape was tested for packaging ability in comparison with the product similarly prepared from the homopolymer of isoamyl acrylate. Kraft paper bags filled with 2-lb. quantities of rice were closed with a single fold, and sealed with an inch-long strip of half-inch tape applied across the fold. The tape was applied with a quick stroking motion of the fingertips. The homopolymer adhesive tape was not fully adhered to the bag by such technique; in most cases it required further stroking or rubbing action for complete adherence. After standing at normal room temperature for a short time, usually less than two hours, these bags popped open. On the other hand, tape coated with the copolymer adhesive of this example adhered firmly and completely when first applied, and the bags remained permanently sealed.

Example 2 The acrylate ester of commercial fusel oil was copolymerized with acrylic acid in 95:5 ratio, by methods described under Example 1, and the adhesive was coated on cellophane to provide a pressure-sensitive adhesive tape having good packaging properties.

Commercial fusel oil has a variable composition lying within the approximate limits of 5580% primary amyl alcohols, 15-45% primary butyl alcohols, and -5% n-propyl alcohol, as determined by analysis, and the fusel oil acrylate ester as used in this example is a mixture of the acrylic acid esters of these alcohols within the proportions given and having an average of slightly more than four carbon atoms per alcohol alkyl group. At least one-half of the carbon atoms of the alkyl groups of the ester molecules are in a straight chain terminating at the hydroxyl oxygen atom, a major proportion of such chains containing at least four carbon atoms. 7

The polymer of fusel oil acrylate, as well as other polymers and copolymers of the non-tertiary acrylate esters herein enumerated, and copolymers of such esters with small amounts of other esters such as the 0-5% of n-propyl acrylate in the above Example 2, or of other co'polyme'rizable monomers as hereinafter noted, are efie'ctive pressure-sensitive adhesives for many purposes, but do not meet the more drastic requirements of the packaging test. Copolymerization of these same acrylate monomers or mixtures of monomers with small amounts of acrylic acid or equivalent copolymerizable additive monomer component results in normally tacky and pressure-sensitive adhesive polymers having the same valuable characteristics of transparency, sunlight resist ance, etc. as do the unmodified corresponding acrylate ester polymers, and in addition having the ability to quickly and completely adhere to kraft paper to provide a permanent seal, as required for packaging.

Example 3 2-ethylbuty1 acrylate and ethyl acrylate, copolymerized in 3:1 molar ratio to provide an average alcohol alkyl group of. 5. carbon atoms, form a normally tacky and pressure-sensitive adhesive polymer which adheres to many surfaces but is deficient in packaging value. The adhesion value may be increased by the addition of resinous tackifiers, but the, elastic strength of the adhesive bond is then inadequate. The same monomers when copolymerized in the same proportions but with small added amounts of acrylic acid provide a pressuresensitive adhesive polymer which in the form of a coated adhesive tape is found to have good adhesion and good internal strength, and to be an efiective packaging tape.

Amounts of acrylic acid ranging from about 4% to about 8% of the total monomers are found to provide the best over-all results in terms of the pressure-sensitive adhesive tape product.

Example 4 The pressure-.sensitive adhesive polymer of Example 2, produced by copolymerization of parts of fusel oil acrylate and 5 parts of acrylic acid, is plasticized by the addition of one-fourth its weight of a lower molecular weight balsam-like polymer of n-butyl acrylate and coated from solution in a volatile solvent on matte finish cellulose aeetate film which has been coated on the reverse side with a thin coating of a low adhesion backsize. After drying, the coated web is slit into narrow strips and wound up in convolute roll form. The tape may be unwound from the roll without splitting or olfsetting of the adhesive, and is particularly effective as a packaging tape, and as 'a mending or sealing tape, 'e.g., for repairing torn papers or documents. In contrast with tapes coated with adhesives similarly prepared but containing no acrylic acid residues, the adhesive tape of this example is highly resistant to the softening elfect of mineral oils, and hence is useful 'in impregnated electrical coils and other applications involving continued contact with oil.

The loW-molecular-weight n-butyl acrylate polymer has a viscosity of about 2000 cps. at 50% concentration in heptane, measured at 25 C. Adhesive polymers such as fusel oil acrylate pressure-sensitive adhesive are very much higher in molecular weight and must be diluted to about 20% concentration in order to show a similar viscosity. The polymer of acrylic acid and fusel oil acrylate cannot be directly compared because of its comparative insolubility in heptane solvent, but is of the same general consistency as the fusel oil acrylate homopolymer adhesive.

Dibutyl or dioctyl phthalate, hydroabietyl alcohol, the methyl ester of hydrogenated abietic acid, and other equivalent compatible plasticizers may be substituted for the low-molecular-weig-ht acrylate polymer plasticizer of Example 4 in modifying the properties of these pressuresensitive adhesive masses, generally in amounts of not more than about one-fourth or one-third the Weight of the principal polymer. Pigments, dyes, fillers, and other modifiers can also be included Where desired.

Example 5 from the emulsion, dried, dissolved in a mixture of 80 I parts heptane and 20 parts propyl alcohol to a coatable viscosity, coated on cellophane, and dried to form a pressure-sensitive adhesive tape having superior adhesion and holding power on kraft paper.

Example 6 A mixture of parts by weight of ethyl acetate, 96 parts of isooctyl acrylate, 4 parts of acrylamide, and 0.37 partof benzoyl peroxide was purged well with nitrogen and brought to 55 C. with agitation. Polymerization started after about one hour and the batch gradually thickened. An additional 0.25 part of benzoyl peroxide was added at 3-4- hours and a like quantity at 78 hours. Heating was continued for a further 6 hours. The mixture was then diluted with heptane to a coatable viscosity. Coated on cellophane and dried, it produced a pressureesensitive adhesive tape having superior packagingcharacteristics.

Example 7 A mixture of 122 parts by weight of ethyl acetate, 95.3 parts of isooctyl acrylate, 1.4 parts of methacrylic acid, and 0.34 part of benzoyl peroxide was purged with nitrogen and brought to 55 C. with agitation. Polymerization started after about one hour, and the solution gradually increased in viscosity. During the following five hours there was added, in approximately equal fractional portions, a total of 3.3 parts of methacrylic acid, 6.5 parts of ethyl acetate, and 0.59 part of benzoyl peroxide. The mixture was then thinned with a further 39 parts of ethyl acetate, held at 5557 C. for seven hours, and diluted with heptane to a coatable viscosity. Pressure-sensitive adhesive tape having high packaging value was prepared by coating the solution on a flexible tape backing and drying.

[Example 8] [A reaction vessel was charged with 147 parts of distilled water, 2 parts of a 46% solution of alkyl aryl sodium sulfonate wetting agent, 94 parts of isooctyl acrylate, 6 parts of acrylonitrile, and 0.02 part of tertiary dodecyl mercaptan. After purging with nitrogen and bringing to 40 C., there was added 0.2 part of potassium persulfate and 0.067 part of sodium bisulfite. The resulting polymer was recovered in heptane solution, the water being removed by boiling in the continued presence of the heptane. The polymer, in the form of a thin coating on a flexible tape backing, exhibited high packaging value] Example 9 A copolymer of 97 parts by weight of isooctyl acrylate and 3 parts of methacrylamide was prepared in ethyl acetate solution by the method described in connection with Example 6. A pressure-sensitive adhesive tape product having high packaging value was produced on application of the copolymer to a suitable tape backing.

Example 10 A terpolymer was prepared in emulsion form by methods already indicated, employing 104 parts of distilled water, 7.15 parts of 28% solution of alkylated aryl polyether sodium snlfonate (Triton X-200), 86 parts of isooctyl acrylate, 9.5 parts of ethyl acrylate, 4.5 parts of acrylic acid, 0.057 part of carbon tetrabromide, 0.2 part of potassium persulfate, and 0.067 part of potassium bisulfite. The product was an effective pressure-sensitive tape adhesive, producing a coated adhesive tape having high packaging value.

On the contrary, a copolymer of 88 parts of isooctyl acrylate and 12 parts of methyl acrylate was found to be ineffective in the packaging test.

The polymers of the following tabulated additional examples were also produced and tested as pressure-sensitive adhesives by appropriate methods as already indicated. They were found to exhibit excellent immediate adhesion to kraft paper and to provide an effective permanent bond when tested for packaging value.

Example acrylate amt. comonomer amt.

isoarnyl 92. 5 acrylic acid 7. 5 isooctyl 8 3,5,5-trimethy1hexyl 5 n-decyl... 6

97 methacrylic acid. 3

95. 5 acrylamide 4. 5

(fusel oil). 5 isooctyl. 94 acrylonitrile 6] (fusel oil) 90 acrylic acid 10 Polymers formed of the above-identified acrylates or mixtures of acrylates in the absence of the acrylic acid or other equivalent copolyrnerizable monomers are sticky' or tacky and in most cases come within the definition of pressure-sensitive tape adhesives. However they are deficient in the ability to adhere firmly to kraft paper when rapidly applied under light pressure, e. g., as in the sealing of paper bags. Such polymers differ among themselves in these qualities, and polymers of the same monomers may also differ depending on the method of polymerization or other factors. While copolyrnerization of such monomer systems with small amounts of one or more of the copolymerizable additive monomers of the examples will in each case produce distinct improvement in the qualities indicated, it is not ordinarily possible to foretell the exact amount of a particular additive which will provide with a particular principal monomer the maximum improvement in desired properties as determined by the packaging test or other equivalent analytical procedure. As shown by the examples, the preferred range of proportions of such additives is about 310%. Less than about 3% of the additive ordinarily does not impart worthwhile improvement. Amounts somewhat above 10 may be employed, particularly with principal monomers which by themselves form soft sticky polymers of low-internal or cohesive strength. Above about 12-15% of additive monomer, the polymer becomes too firm and hard for best application as a normally tacky pressure-sensitive adhesive.

Specific acrylic acid esters other than those named hereinabove, as well as various mixtures of esters, may equally well be employed as the principal monomers in the practice of this invention. These esters or mixtures may include methyl, ethyl, and propyl acrylates as well as longer chain acrylates including tetradecyl acrylates, and including both primary and secondary, normal and branched chain alkyl esters. Tertiary alkyl esters do not provide the required stickiness and other properties and are excluded. Highly branched alkyl chains in which the side chains account for more than about one-half the total number of carbon atoms are likewise found to produce polymers of inadequate stickiness and are also to be excluded.

It is also necessary that the acrylic acid ester component contain at least a major proportion of esters having an alkyl chain length of at least four carbon atoms, and that the total number of carbon atoms in the average alkyl group be within the range of about 4-12 carbon atoms.

A seeming exception to these requirements is the acrylic acid ester of pentanol-3. This secondary alcohol has an alkyl skeletal chain length of only three carbon atoms but provides a polymer, as well as a copolymer with small amounts of acrylic acid or the like, which is useful as a normally tacky and pressure-sensitive tape adhesive. The copolymer has highly acceptable packaging characteristics. While this ester is therefore contemplated as being an equivalent of those above-identified, it is relatively very difficult to prepare by direct esterification of the secamyl alcohol with acrylic acid and is therefore not presently preferred.

The acrylic acid non-tertiary alkyl ester monomers or mixtures as above identified will normally be copolymerized only with one or more of the additive copolymerizable monomers hereinbefore noted. Small amounts of other monomers may unavoidably be associated with these monomers, or may even be deliverately added, without detracting from the value of the resulting polymer for the purposes here under consideration. The inclusion of copolymerizable ethylenically unsaturated monomers such as the ethyl acrylate of Example 10, as well as vinyl chloride, various methacrylate esters, butadiene, isoprene, diallyl phthalate, etc., in such limited amounts as do not drastically alter the properties of the non-tertiary alkyl acry'late ester polymer, is therefore to be considered as coming within the scope of the present invention.

It is found that [the alkyl acrylates and acrylonitrile or rnethacrylonitrile are most eifectively copoly-znerized in aqueous emulsion, whereas] the copolymers made with acrylamide, methacrylamide, methacrylic acid, or itaconic acid are best produced in organic solution. Acrylic acid is more versatile; it may be copolymerized with the esters in both aqueous and non-aqueous systems, and with greater ease. For most purposes, acrylic acid-acrylate ester copolymer adhesive masses are therefore greatly preferred.

The two systems of polymerization each have im portant advantages depending on the source of monomers, the type of backing to be coated, and various other variables. For example, monomers which contain odoriferous impurities may be polymerized in, and coated directly from, aqueous systems with substantial reduction in odor level. On the other hand, many Water-sensitive backings cannot conveniently be coated with adhesive compositions from aqueous suspension. While such a composition may be converted to an organic solvent system, it is more convenient and economical to produce the polymer directly in such solvent.

The flexible backing member to which the coating of modified polyacrylate pressure-sensitive adhesive is ap plied may be transparent cellophane or cellulose acetate, in which case, where the adhesive is also transparent, a transparent pressure-sensitive adhesive tape is produced. Other transparent films, for example, films of ethyl cellulose, plasticized vinyl acetate-vinyl chloride copolymers, terephthalic acid-ethylene glycol polyester resins, and the like, are also effective as transparent flexible backings for use in connection with these adhesives.

For instance, a pure polymer film backing such as a nylon or a polyethylene film (free from plasticizer) coated with the present pressure-sensitive adhesive, the film being treated if desired to enhance the bonding of the adhesive to the substrate surface, provides a superior adhesive tape or sheet for surgical and medical purposes. The adhesive is relatively non-irritating to the human skin and the backing film does not include any plasticizer or other component which might otherwise migrate into the adhesive and render it irritating. This adhesive can be employed in other products useful in the surgical and medical fields, including those having cloth or nonwoven fibrous elements.

The backing member may be given a preliminary adhesive priming coat if desired, although the copolymer adhesive masses herein described are ordinarily found to become firmly adherently bonded to most backings even in the absence of such priming layer. Colored films may be substituted, and colors or pigments, or contrasting opacifiers, may be incorporated in the adhesive mass, where colored tape products are desired. Opaque films, and films coated with single or multiple layers of various other materials, may replace the transparent films.

Flexible fibrous backings may also be employed, including treated or untreated paper, cloth, wadding, and the like. Tape products which are designed primarily for package sealing, and particularly for the sealing of kraft paper bags as herein described, will ordinarily comprise cellophane or some equivalent thin, flexible and strong sheet material. However it has been found that such coated sheets or strips have advantages in connection with adhesive bonding to many surfaces other than kraft paper, and hence no limitation is to be implied with respect either to the type of flexible backing member employed or to the type of surface to Which the coated product is to be adhered.

Thus the pressure-sensitive adhesive coated sheet material is found to possess an unusually desirable combination of bonding properties with regard to metal and glass surfaces. It is found, for example, that such sheet material adheres readily and firmly to clean surfaces of glass, altuninum sheet, and the like, when lightly pressed thereagainst at normal room temperatures. The sheet may then be removed by cautious stripping, and replaced, as many times as desired. With some of these adhesive compositions, adhesion to the surface is found to increase substantially when the sheet is allowed to remain adherently attached to such surfaces for even a few hours. Under these conditions, many types of adhesive-coated backings are found to be permanently bonded to the surface so that they cannot be elfectively removed. The same effect is obtained on other metallic surfaces and on painted or enameled surfaces.

Where permanent adhesion of the type just described is desired, best results are normally obtained with adhesives made with a somewhat higher proportion of additive monomer such as acrylic acid than in the case of the products designed primarily for use on kraft paper or cellophane. For example, where about 38% or preferably 4-6% of acrylic acid is ideal in the latter case, the use of about 642% is recommended for the former.

Adhesive surfaces, and particularly those which tend to form a permanent bond with another surface on prolonged contact therewith, may be protected and preserved by means of suitable low-adhesion liners or coverings, of which polyethylene or other high molecular weight waxy type materials are exemplary, either in film form or as a surface coating on paper or other supporting web. Other suitable coating materials which serve as effective low-adhesion backsizes or coatings are described in U.S. Patents Nos. 2,532,011 and 2,607,711.

What is claimed is as follows:

1. Normally tacky and pressure-sensitive adhesive coated sheet material having high packaging value and comprising a thin flexible backing member and, firmly adherently bonded thereto, a coating of a copolymer of monomers consisting essentially of (a) monomeric acrylic acid ester of non-tertiary alkyl alcohol the molecules of which have from one to 14 carbon atoms, the average being about 412 carbon atoms, at least a major proportion of said molecules having a carbon-to-carbon chain of at least four carbon atoms terminating at the hydroxyl oxygen atom, said chain containing at least about one-half the total number of carbon atoms in the molecule, said acrylic acid ester being further characterized as being per se polymerizable to a sticky, stretchable and elastic, adhesive polymer mass; and (b) at least one monomer copolymerizablc with said acrylic acid ester and selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, acrylamide, and methacrylamideij, acrylo nitrile, and methacrylonitrile] in an amount by weight within the range of about 3-12 percent of the total of said monomers (a) and (b), said monomers and the proportions thereof being further selected to provide a normally tacky and pressure-sensitive adhesive copolyrner.

2. A convolutcly wound roll of the normally tacky and pressure-sensitive adhesive coated sheet material of claim 1 in narrow continuous tape form and capable of being unwound from said roll Without splitting and offsetting of the adhesive copolymer coating.

3. A convolutely wound roll of the normally tacky and pressure-sensitive adhesive coated sheet material of claim 1, said sheet material being provided with a low-adhesion back-size coating on the adhesive-free major suriace, said sheet material being in narrow continuous tape form and being capable of being unwound from said roll Without splitting and ofisetting of the adhesive copolymer coating.

4. Coated sheet material comprising a flexible backing and, firmly adherently bonded thereto, a coating of a copolymer of monomers consisting essentially of (a) monomeric acrylic acid ester of non-tertiary alkyl alco- 1101 the molecules of which have from 1 to fourteen carbon atoms, the average being about 4-12 carbon atoms, at least a major proportion of said molecules having a carbon-to-carbon chain of at least four carbon atoms terminating at the hydroxyl oxygen atom, said chain containing at least about one-half the total number of carbon atoms in the molecule, said acrylic acid ester being further characterized as being per se polymerizable to a sticky, stretchable and elastic, adhesive polymer mass, and (b) acrylic acid in an amount by Weight within the range of about 3-12 percent of the total of said (a) and (b); said monomers and the proportions thereof being further selected to provide a normally tacky and pressuresensitive adhesive copolymer.

5. Normally tacky and pressure-sensitive adhesive coated sheet material having high packaging value and comprising a thin flexible backing member and, firmly adherently bonded thereto, a coating of a normally tacky and pressure-sensitive adhesive copolymer of monomers consisting essentially of about 92-96 parts by weight of isooctyl acrylate and correspondingly about 8-4 parts of acrylic acid.

6. Coated sheet material comprising a flexible backing and, firmly adherently bonded thereto, a coating of a copolymer of monomers consisting essentially of (a) monomeric acrylic acid ester of non-tertiary alkyl alcohol the molecules of which have from 1 to 14 carbon atoms, the average being about 4-12 carbon atoms, at least a major proportion of said molecules having a carbon-tocarbon chain of at least four carbon atoms terminating at the hydroxyl oxygen atom, said chain containing at least about one-half the total number of carbon atoms in the molecule, said acrylic acid ester being further characterized as being per se polymerizable to a sticky, stretchable and elastic, adhesive polymer mass, and (b) acrylamide in an amount by weight within the range of about 3-12 percent of the total of said (a) and (b); said monomers and the proportions thereof being further selected to provide a normally tacky and pressure-sensitive adhesive copolymer.

7. Normally tacky and pressure-sensitive adhesive coated sheet material having high packaging value and comprising a thin flexible backing member and, firmly adherently bonded thereto, a coating of a normally tacky and pressure-sensitive adhesive copolymer of monomers consisting essentially of about 94-97 parts by weight of isooctyl acrylate and correspondingly about 6-3 parts of acrylamide.

References Cited in the file of this patent or the original patent UNITED STATES PATENTS 2,147,154 Fikentscher et al. Feb. 14, 1939 2,464,826 Neher Mar. 22, 1949 2,544,692 Kugler et a1 Mar. 13, 1951 2,557,266 Dittmar June 19, 1951 2,570,253 Lundquest Oct. 9, 1951 2,601,016 Hendricks et al June 17, 1952 2,607,711 Hendricks Aug. 19, 1952 2,649,439 Brown Aug. 18, 1953 2,726,230 Carlson Dec. 6, 1955 2,754,280 Brown et al July 10, 1956 FOREIGN PATENTS 584,857 Great'Britain Jan. 24, 1947 OTHER REFERENCES Schillknecht: Vinyl and Related Polymers, chapter V, Wiley, New York, 1952 (pp. 256-322).

Référencé par
Brevet citant Date de dépôt Date de publication Déposant Titre
US3008850 *27 avr. 195914 nov. 1961Minnesota Mining & MfgPressure-sensitive adhesive sheet material
US3092250 *1 août 19604 juin 1963 Pressure sensitive adhesive tape in which the adhesive
US3121021 *18 avr. 196011 févr. 1964Minnesota Mining & MfgBreathable surgical adhesive tapes
US3144430 *9 oct. 196111 août 1964Minnesota Mining & MfgPolypropylene film and method of making
US3205088 *25 janv. 19627 sept. 1965Minnesota Mining & MfgPressure-sensitive adhesive tape
US3232785 *6 juil. 19621 févr. 1966Minnesota Mining & MfgPressure-sensitive adhesive sheet
US3241662 *22 juin 196222 mars 1966Johnson & JohnsonBiaxially oriented polypropylene tape backing
US3265769 *9 oct. 19619 août 1966Minnesota Mining & MfgBiaxially oriented polypropylene film containing butyl rubber
US3268357 *17 déc. 196423 août 1966Pittsburgh Plate Glass CoArticle coated with alkyl acrylatevinyl ester interpolymer containing adhesive
US3307544 *10 sept. 19637 mars 1967Goodrich Co B FSurgical pressure-sensitive adhesive sheet with n-tert-butylacrylamide copolymer adhesive
US3312563 *23 oct. 19634 avr. 1967Minnesota Mining & MfgDecorative adhesive sheet material with a chlorinated vinyl polymerpolyester resin blend primer
US3325459 *1 août 196313 juin 1967Johnson & JohnsonSheet materials
US4967740 *8 sept. 19896 nov. 1990Minnesota Mining And Manufacturing CompanyDispensable tapes
US4968558 *2 nov. 19896 nov. 1990Nalco Chemical CompanyUltraviolet radiation photopolymerization of acrylic ester pressure sensitive adhesive formulation
US4972037 *7 août 198920 nov. 1990Minnesota Mining And Manufacturing CompanyPolysiloxane-grafted copolymer topical binder composition with novel fluorochemical comonomer and method of coating therewith
US4978527 *10 avr. 198918 déc. 1990Minnesota Mining And Manufacturing CompanyFilm-forming emulsion containing iodine and methods of use
US4986496 *31 mai 198522 janv. 1991Minnesota Mining And ManufacturingDrag reduction article
US4988742 *2 sept. 198829 janv. 1991Minnesota Mining And Manufacturing CompanyTackified terpolymer adhesives
US5024880 *3 janv. 199018 juin 1991Minnesota Mining And Manufacturing CompanyCellular pressure-sensitive adhesive membrane
US5028484 *6 mars 19902 juil. 1991Minnesota Mining And Manufacturing CompanyPressure-sensitive adhesive
US5032436 *11 oct. 198916 juil. 1991Minnsota Mining And Manufacturing CompanyFrame for use with photographs
US5057366 *16 sept. 198215 oct. 1991Minnesota Mining And Manufacturing CompanyAcrylate copolymer pressure-sensitive adhesive coated sheet material
US5069403 *2 mai 19903 déc. 1991Minnesota Mining And Manufacturing CompanyDrag reduction article
US5070164 *31 août 19893 déc. 1991Mobil Oil CorporationCold sealable cohesive terpolymers
US5087494 *12 avr. 199111 févr. 1992Minnesota Mining And Manufacturing CompanyElectrically conductive adhesive tape
US5115014 *19 août 199119 mai 1992Kanegafuchi Kagaku Kogyo Kabushiki KaishaSilyl group-containing vinyl resin and curable composition
US5133516 *22 janv. 199128 juil. 1992Minnesota Mining And Manufacturing Co.Drag reduction article
US5153042 *16 mai 19896 oct. 1992Minnesota Mining And Manufacturing CompanyTamper-indicating labelstock
US5158557 *3 déc. 199027 oct. 1992Minnesota Mining And Manufacturing CompanyRefastenable adhesive tape closure
US5173291 *10 sept. 199022 déc. 1992Minnesota Mining And Manufacturing CompanyFilm-forming emulsion containing iodine and methods of use
US5176956 *1 juil. 19915 janv. 1993Medtronic, Inc.Biomedical apparatus having fatty acid dimer derived skin compatible adhesive composition thereon
US5183833 *17 août 19902 févr. 1993Adco Products Inc.Ultraviolet radiation photopolymerization of acrylic ester pressure sensitive adhesive formulation
US5209924 *9 sept. 199111 mai 1993Minnesota Mining And Manufacturing CompanyPolysiloxane-grafted copolymer topical binder composition with novel fluorochemical comonomer and method of coating therewith
US5237355 *15 nov. 199117 août 1993Minnesota Mining And Manufacturing CompanyEnvelope for transparency having increased flexibility
US5242726 *23 sept. 19917 sept. 1993Minnesota Mining And Manufacturing CompanyPattern-coated anchorage system for porous film
US5266402 *18 déc. 199030 nov. 1993Minnesota Mining And Manufacturing CompanyInterpenetrating pressure-sensitive adhesive polymer networks
US5266987 *15 nov. 199130 nov. 1993Minnesota Mining And Manufacturing CompanyEnvelope for transparencies
US5275880 *17 mai 19894 janv. 1994Minnesota Mining And Manufacturing CompanyMicrowave absorber for direct surface application
US5294668 *15 nov. 199015 mars 1994Minnesota Mining And Manufacturing CompanyPolyolefin pressure-sensitive adhesive compositions containing macromonomers
US5296277 *9 oct. 199222 mars 1994Minnesota Mining And Manufacturing CompanyPositionable and repositionable adhesive articles
US5306758 *26 mai 199326 avr. 1994Minnesota Mining And Manufacturing CompanyFluorocarbon-based coating compositions and articles derived therefrom
US5308887 *23 mai 19913 mai 1994Minnesota Mining & Manufacturing CompanyPressure-sensitive adhesives
US5314557 *28 juil. 199324 mai 1994Minnesota Mining And Manufacturing CompanyMethod of unitizing packages by means of a stretchable adhesive tape
US5338490 *31 août 199316 août 1994Minnesota Mining And Manufacturing CompanyTwo-phase composites of ionically-conductive pressure-sensitive adhesive, biomedical electrodes using the composites, and methods of preparing the composite and the biomedical electrodes
US5349004 *18 sept. 199220 sept. 1994Minnesota Mining And Manufacturing CompanyFluoroalkyl siloxane/vinyl copolymer dispersions and pressure-sensitive adhesives having improved solvent resistance prepared therefrom
US5352516 *31 janv. 19924 oct. 1994Adhesives Research, Inc.Water-inactivatable pressure sensitive adhesive
US5354600 *17 mai 199311 oct. 1994Adco Products, Inc.Fortified pressure sensitive adhesive
US5354619 *21 déc. 199311 oct. 1994Minnesota Mining And Manufacturing CompanyLaminates and adhesive tape with a polyolefin pressure-sensitive adhesive composition containing macromers
US5362516 *7 déc. 19938 nov. 1994Minnesota Mining And Manufacturing CompanyMethod of preparing an adhesive article
US5364671 *15 juil. 199115 nov. 1994Minnesota Mining And Manufacturing CompanyCover assembly for use with photographs
US5371560 *26 mars 19936 déc. 1994Minnesota Mining And Manufacturing CompanyEnvelope for transparency
US5374698 *25 nov. 199220 déc. 1994Minnesota Mining And Manufacturing CompanyMethod for making structured suspension PSA beads
US5382451 *6 avr. 199217 janv. 1995Minnesota Mining And ManufacturingMethod for coating adhesive polymers
US5385736 *12 juil. 199331 janv. 1995Minnesota Mining And Manufacturing CompanyTransdermal melatonin delivery system
US5385772 *19 févr. 199131 janv. 1995Adco Products, Inc.Pressure-sensitive adhesive systems with filler
US5387458 *9 mai 19947 févr. 1995Minnesota Mining And Manufacturing CompanyArticles exhibiting durable fluorescence with an ultraviolet screening layer
US5407368 *15 déc. 199218 avr. 1995Minnesota Mining And Manufacturing CompanyElectrode connector
US5407717 *14 avr. 199318 avr. 1995Minnesota Mining And Manufacturing CompanyCrosslinked absorbent pressure sensitive adhesive and wound dressing
US5409838 *20 mai 199425 avr. 1995Minnesota Mining And Manufacturing CompanyUse of acid to stabilize indicator dyes in acrylate adhesives
US5424122 *9 déc. 199113 juin 1995Minnesota Mining And Manufacturing CompanyNonionic, Ph-neutral pressure sensitive adhesive
US5443877 *1 mars 199422 août 1995General Electric CompanyGlazing laminate having a replaceable sacrificial layer
US5443963 *31 janv. 199422 août 1995Minnesota Mining And Manufacturing CompanyMethod for detecting staphylococci
US5454739 *3 févr. 19943 oct. 1995Minnesota Mining And Manufacturing CompanyElectrode connector
US5458938 *3 août 199317 oct. 1995Minnesota Mining And Manufacturing CompanyMounting laminate having recessed adhesive areas
US5458983 *29 juil. 199417 oct. 1995Moore Business Forms, Inc.Repositionable acrylate adhesive
US5460880 *10 juin 199424 oct. 1995Minnesota Mining And Manufacturing CompanyIndicator tapes and methods
US5461087 *29 juil. 199324 oct. 1995Sony CorporationAdhesive and double-sided adhesive tape
US5464659 *13 sept. 19937 nov. 1995Minnesota Mining And Manufacturing CompanySilicone/acrylate vibration dampers
US5464916 *15 déc. 19947 nov. 1995Minnesota Mining And Manufacturing CompanyMethod for making structured suspension PSA beads
US5466535 *15 juin 199314 nov. 1995Imperial Chemical Industries PlcPolymeric film
US5468231 *18 mai 199421 nov. 1995Minnesota Mining And Manufacturing CompanyRefastenable tube and cable restraint for surgical use
US5468821 *17 janv. 199521 nov. 1995Minnesota Mining And Manufacturing CompanyCrosslinked absorbent pressure sensitive adhesive and wound dressing
US5474634 *17 mai 199412 déc. 1995Termanini; ZaferProtective tape
US5482991 *16 sept. 19949 janv. 1996Minnesota Mining And Manufacturing CompanyFluoroalkyl siloxane/vinyl copolymer dispersions and pressure-sensitive adhesives having improved solvent resistance prepared therefrom
US5487780 *15 févr. 199430 janv. 1996Minnesota Mining & Manufacturing CompanyApparatus for applying coating materials to overlapped individual sheets
US5496599 *11 avr. 19945 mars 1996Minnesota Mining And Manufacturing CompanyMethod of unitizing packages by means of a stretchable adhesive tape
US5496603 *16 mai 19955 mars 1996Minnesota Mining And Manufacturing CompanyNonwoven sheet materials, tapes and methods
US5496605 *18 août 19955 mars 1996Minnesota Mining And Manufacturing CompanyPerforated roll of nonwoven surgical tape
US5505995 *2 févr. 19959 avr. 1996Minnesota Mining And Manufacturing CompanyMethod and apparatus for coating substrates using an air knife
US5506000 *2 févr. 19959 avr. 1996Minnesota Mining And Manufacturing CompanySlot coating method and apparatus
US5510171 *19 janv. 199523 avr. 1996Minnesota Mining And Manufacturing CompanyDurable security laminate with hologram
US5514730 *25 juil. 19947 mai 1996Minnesota Mining And Manufacturing CompanyRadiation-curable acrylate/silicone pressure-sensitive adhesive compositions
US5518763 *5 juin 199521 mai 1996Minnesota Mining And Manufacturing CompanyMethod of making indicator tapes
US5520568 *15 juil. 199428 mai 1996Minnesota Mining And Manufacturing CompanyMethod of processing a lens and means for use in the method
US5525376 *2 févr. 199511 juin 1996Minnesota Mining And Manufacturing CompanyMultiple layer coating method
US5527578 *12 sept. 199418 juin 1996Minnesota Mining And Manufacturing CompanyRadiation curable vinyl/silicone release coating
US5527595 *1 août 199418 juin 1996Adco Products, Inc.Pressure-sensitive adhesive systems with filler
US5531855 *13 juin 19942 juil. 1996Minnesota Mining And Manufacturing CompanyCarrier delivered dressing and method of manufacture
US5536778 *21 avr. 199316 juil. 1996Minnesota Mining And Manufacturing CompanyPressure sensitive adhesive comprising cellulose
US5538444 *30 mars 199523 juil. 1996Minnesota Mining And Manufacturing CompanyElectrode connector
US5563023 *2 nov. 19948 oct. 1996Minnesota Mining And Manufacturing Co.Photoimageable elements
US5567773 *4 avr. 199522 oct. 1996Mobil Oil CorporationCold sealable cohesive polymers
US5568210 *27 oct. 199422 oct. 1996Minnesota Mining And Manufacturing CompanyEnvelope for transparency
US5571617 *1 juil. 19945 nov. 1996Minnesota Mining And Manufacturing CompanyPressure sensitive adhesive comprising tacky surface active microspheres
US5573626 *18 oct. 199512 nov. 1996Minnesota Mining And Manufacturing CompanyTape supply and applicator system including a tape splicing mechanism
US5589122 *29 mars 199531 déc. 1996Minnesota Mining And Manufacturing CompanyMethod of making double-sided pressure-sensitive adhesive tape
US5589246 *17 oct. 199431 déc. 1996Minnesota Mining And Manufacturing CompanyHeat-activatable adhesive article
US5593750 *2 juin 199514 janv. 1997Minnesota Mining And Manufacturing CompanyCloth body coverings having multi-cycle refastenable tape closure systems
US5597677 *2 nov. 199428 janv. 1997Minnesota Mining And Manufacturing CompanyPhotoimageable elements
US5599602 *26 sept. 19954 févr. 1997Minnesota Mining And Manufacturing CompanyDouble-sided pressure-sensitive adhesive tape and method of making
US5611356 *12 févr. 199618 mars 1997Minnesota Mining And Manufacturing CompanySurgical drapes having tape attachment strips
US5612136 *6 oct. 199418 mars 1997Minnesota Mining And Manufacturing CompanyPressure-sensitive adhesives having improved adhesion to acid-rain resistant automotive paints
US5613942 *4 oct. 199425 mars 1997Minnesota Mining And Manufacturing CompanyAdhesive sheet material suitable for use on wet surfaces
US5614210 *31 mars 199525 mars 1997Minnesota Mining And Manufacturing CompanyTransdermal device for the delivery of alfuzosin
US5616385 *6 oct. 19941 avr. 1997Minnesota Mining And Manufacturing CompanyMulti-cycle refastenable tape closure systems
US5616387 *16 oct. 19951 avr. 1997Minnesota Mining And Manufacturing CompanyPerforated roll of elastic wrap
US5618278 *11 juil. 19948 avr. 1997Minnesota Mining And Manufacturing CompanySurgical fluid collection pouch
US5618899 *30 mai 19958 avr. 1997Minnesota Mining & MfgCrosslinked pressure-sensitive adhesives tolerant of alcohol-based excipients used in transdermal delivery devices and method of preparing same
US5620795 *10 juil. 199515 avr. 1997Minnesota Mining And Manufacturing CompanyAdhesives containing electrically conductive agents
US5624763 *5 juin 199529 avr. 1997Minnesota Mining And Manufacturing CompanySilicone/acrylate vibration dampers
US5628724 *29 déc. 199413 mai 1997Deroyal Industries, Inc.Wound dressing and delivery system therefor
US5631073 *16 sept. 199620 mai 1997Minnesota Mining And Manufacturing CompanyNonwoven sheet materials, tapes and methods
US5635367 *15 mai 19953 juin 1997Minnesota Mining And Manufacturing CompanyMethod for detecting staphylococci
US5637368 *20 avr. 199310 juin 1997Minnesota Mining And Manufacturing CompanyAdhesive tape having antistatic properties
US5641544 *11 janv. 199624 juin 1997Minnesota Mining And Manufacturing CompanyMethod and apparatus for applying thin fluid coatings
US5643648 *26 juil. 19951 juil. 1997Minnesota Mining And Manufacturing CompanyPressure sensitive adhesive patch
US5643668 *30 déc. 19941 juil. 1997Minnesota Mining And Manufacturing CompanyTape for rough surfaces
US5650215 *5 mai 199522 juil. 1997Minnesota Mining And Manufacturing CompanyPressure-sensitive adhesives having microstructured surfaces
US5658411 *22 déc. 199519 août 1997Minnesota Mining And Manufacturing CompanyDurable security laminate with hologram
US5660922 *3 mai 199526 août 1997Minnesota Mining And Manufacturing CompanyCoextruded pressure-sensitive adhesive tape and method of making
US5660925 *7 déc. 199526 août 1997Minnesota Mining And Manufacturing CompanyTamper-indicating and authenticating label
US5667303 *10 mars 199516 sept. 1997Minnesota Mining And Manufacturing CompanyTime-temperature integrating indicator device
US5672404 *13 déc. 199530 sept. 1997Minnesota Mining And Manufacturing CompanyAttachment strips
US5673433 *13 déc. 19947 oct. 1997Minnesota Mining & Manufacturing CompanyGarment having barrier layer adhered thereto
US5679190 *19 juin 199621 oct. 1997Minnesota Mining And Manufacturing CompanyMethod of making nonwoven sheet materials, tapes
US5683774 *16 févr. 19964 nov. 1997Minnesota Mining And Manufacturing CompanyDurable, tamper resistant security laminate
US5688523 *31 mars 199518 nov. 1997Minnesota Mining And Manufacturing CompanyMethod of making a pressure sensitive skin adhesive sheet material
US5695837 *20 avr. 19959 déc. 1997Minnesota Mining And Manufacturing CompanyTackified acrylic adhesives
US5698217 *31 mai 199516 déc. 1997Minnesota Mining And Manufacturing CompanyTransdermal drug delivery device containing a desiccant
US5702720 *22 déc. 199530 déc. 1997Minnesota Mining And Manufacturing CompanyTransdermal device for the delivery of flurbiprofen
US5702771 *25 mai 199530 déc. 1997Shipston; Adele C.Activated adhesive system
US5707703 *10 mars 199413 janv. 1998Minnesota Mining And Manufacturing CompanyRefastenable tube and cable restraint for medical use
US5708109 *6 févr. 199713 janv. 1998Minnesota Mining And Manufacturing CompanyPressure sensitive adhesives with good oily surface adhesion
US5725935 *26 sept. 199610 mars 1998Minnesota Mining And Manufacturing CompanySignage articles and methods of making same
US5728502 *12 mars 199617 mars 1998Minnesota Mining And Manufacturing CompanyImaging medium, method of imaging said medium, and image-bearing medium
US5733608 *11 janv. 199631 mars 1998Minnesota Mining And Manufacturing CompanyMethod and apparatus for applying thin fluid coating stripes
US5736553 *31 mai 19957 avr. 1998Riker Laboratories, Inc.Topical formulations and transdermal delivery systems containing 1-isobutyl-1H-imidazo 4,5-C!quinolin-4-amine
US5738642 *5 juin 199514 avr. 1998Minnesota Mining And Manufacturing CompanyCarrier delivered dressing and method of manufacture
US5741542 *18 mai 199521 avr. 1998Minnesota Mining & Manufacturing CompanyProcess of making thermal free-radical cure adhesives
US5741543 *9 févr. 199621 avr. 1998Minnesota Mining And Manufacturing CompanyProcess for the production of an article coated with a crosslinked pressure sensitive adhesive
US5743981 *25 sept. 199628 avr. 1998Minnesota Mining And Manufacturing CompanyOptical security articles and methods for making same
US5753362 *11 août 199519 mai 1998Soken Chemical & Engineering Co., Ltd.Acrylic sheet, acrylic adhesive sheet and processes for preparing the sheets
US5754269 *13 sept. 199619 mai 1998Minnesota Mining And Manufacturing CompanyThermoplastic lens blocking material
US5756584 *3 janv. 199726 mai 1998Minnesota Mining And Manufacturing CompanyTackified pressure sensitive adhesives
US5763075 *13 sept. 19969 juin 1998Minnesota Mining And Manufacturing CompanyPolycaprolactone lens blocking material
US5765566 *11 juil. 199416 juin 1998Minnesota Mining And Manufacturing CompanySurgical drapes having tape attachment strips
US5770283 *29 août 199623 juin 1998Minnesota Mining And Manufacturing CompanyTamper-indicating label
US5773485 *28 juil. 199530 juin 1998Minnesota Mining And Manufacturing CompanyAcrylic syrup curable to a crosslinked viscoelastomeric material
US5785690 *6 juin 199528 juil. 1998Minnesota Mining And Manufacturing CompanyRefastenable tube and cable restraint for surgical use
US5786062 *27 mai 199728 juil. 1998Minnesota Mining And Manufacturing CompanyAttachment strips
US5795834 *22 déc. 199518 août 1998Minnesota Mining & Manufacturing CompanyAdhesive tape and method of making
US5810756 *22 nov. 199622 sept. 1998Lectec CorporationMethod of producing a perforated medical adhesive tape
US5827184 *29 déc. 199527 oct. 1998Minnesota Mining And Manufacturing CompanySelf-packaging bioelectrodes
US5827390 *13 sept. 199627 oct. 1998Minnesota Mining And Manufacturing CompanyMethod of holding an ophthalmic lens blank
US5836615 *10 mai 199517 nov. 1998Elliot, Deceased; MichaelBook construction with releasable adhesive
US5840783 *14 nov. 199624 nov. 1998Minnesota Mining And Manufacturing CompanyPressure-sensitive adhesives for polyolefin surfaces
US5848769 *26 août 199615 déc. 1998Minnesota Mining & Manufacturing CompanyDrag reduction article
US5849358 *14 oct. 199715 déc. 1998Minnesota Mining And Manufacturing CompanyApparatus and method for applying coating materials to individual sheet members
US5851592 *14 oct. 199722 déc. 1998Minnesota Mining And Manufacturing CompanyApparatus and method for applying coating materials to individual sheet members
US5858516 *30 avr. 199712 janv. 1999Minnesota Mining & Manufacturing CompanyImaging medium comprising polycarbonate, method of making, method of imaging, and image-bearing medium
US5861211 *12 août 199619 janv. 1999Minnesota Mining & Manufacturing CompanyArticles incorporating pressure-sensitive adhesives having improved adhesion to plasticized polyvinyl chloride
US5868838 *14 oct. 19979 févr. 1999Minnesota Mining & Manufacturing CompanyApparatus and method for applying coating materials to individual sheet members
US5883149 *22 mai 199816 mars 1999Minnesota Mining And Manufacturing CompanyTackified pressure sensitive adhesives
US5885677 *24 avr. 199623 mars 1999Minnesota Mining And Manufacturing CompanySecurity label with diffusing indentifier medium and method of making same
US5885700 *17 mars 199723 mars 1999Minnesota Mining And Manufacturing CompanyThermoplastic lens blocking material
US5902836 *28 juil. 199511 mai 1999Minnesota Mining And Manufacturing CompanyAcrylic syrup curable to a crosslinked viscoelastomeric material
US5958135 *14 oct. 199728 sept. 1999Minnesota Mining And Manufacturing CompanyApparatus and method for applying coating materials to individual sheet members
US5972113 *14 oct. 199726 oct. 1999Minnesota Mining And Manufacturing CompanyApparatus and method for applying coating materials to individual sheet members
US616922421 janv. 19982 janv. 20013M Innovative Properties CompanyCarrier delivered dressing and method of manufacture
US618031819 mai 199930 janv. 20013M Innovative Properties CompanyMethod of imaging an article
US618712630 déc. 199713 févr. 20013M Innovative Properties CompanyMethod for making a refastenable tube and cable restraint
US620435016 sept. 199820 mars 20013M Innovative Properties CompanyCure-on-demand, moisture-curable compositions having reactive silane functionality
US621446012 nov. 199610 avr. 20013M Innovative Properties CompanyAdhesive compositions and methods of use
US62211989 juin 199824 avr. 20013M Innovative Properties CompanyMethod of stabilizing films or membranes using adhesive as a reservoir
US622844931 janv. 19948 mai 20013M Innovative Properties CompanySheet material
US62323669 juin 199915 mai 20013M Innovative Properties CompanyPressure sensitive conductive adhesive having hot-melt properties and biomedical electrodes using same
US624592226 juil. 199612 juin 20013M Innovative Properties CompanyChromophoric photocrosslinking compound
US62546787 juin 19953 juil. 2001Minnesota Mining & Manufacturing CompanyApparatus for applying coating materials to overlapped individual sheets
US626497629 nov. 199924 juil. 20013M Innovative Properties CompanyAbsorbent pad dressing frame delivery system
US628082211 janv. 199928 août 20013M Innovative Properties CompanyCube corner cavity based retroeflectors with transparent fill material
US628084530 nov. 199828 août 20013M Innovative Properties CompanyMultilayer films having at least five film layers, wherein at least one layer is flame retardant
US6281298 *20 août 199928 août 2001H. B. Fuller Licensing & Financing Inc.Water-based pressure sensitive adhesives having enhanced characteristics
US628433723 juin 19994 sept. 20013M Innovative Properties CompanyDurable security laminate with heat-shrinkable layer
US628436030 sept. 19974 sept. 20013M Innovative Properties CompanySealant composition, article including same, and method of using same
US6284369 *10 juin 19974 sept. 2001Nitto Denko CorporationSheet for forming burned pattern
US628651131 mars 200011 sept. 20013M Innovative Properties CompanyOphthalmic drape with tear line and method
US6296932 *14 déc. 19982 oct. 20013M Innovative Properties CompanyMicrosphere adhesive coated article for use with coated papers
US631585110 janv. 200013 nov. 20013M Innovative Properties CompanyPressure-sensitive adhesives having microstructured surface
US631609930 sept. 199913 nov. 20013M Innovative Properties CompanyMulti-layered sealant
US632645025 mai 19954 déc. 2001Moore Business FormsActivated adhesive system
US63482498 mars 200119 févr. 20023M Innovative Properties CompanySheet material
US635530913 juin 200012 mars 20023M Innovative Properties CompanyMethod of forming a thermoplastic layer on a layer of adhesive
US63567794 juin 199912 mars 20023M Innovative Properties CompanyUniversally functional biomedical electrode
US637282729 juin 200116 avr. 20023M Innovative Properties CompanySealant composition, article including same, and method of using same
US638364414 sept. 19997 mai 20023M Innovative Properties CompanyMulti-layer sheet comprising a protective polyurethane layer
US638395818 juin 19997 mai 2002David P. SwansonNonwoven sheets, adhesive articles, and methods for making the same
US64057302 août 200118 juin 20023M Innovative Properties CompanyOphthalmic drape with tear line and method
US640678229 juin 200118 juin 20023M Innovative Properties CompanySealant composition, article including same, and method of using same
US640678724 août 199918 juin 20023M Innovative Properties CompanyDigital printable and releasable form construction and composition useful thereto
US64104642 oct. 199825 juin 20023M Innovative Properties CompanyHand-tearable tape
US641972917 avr. 200016 juil. 20023M Innovative Properties CompanyFilter assemblies with adhesive attachment systems
US642062222 janv. 199916 juil. 20023M Innovative Properties CompanyMedical article having fluid control film
US64364326 juin 200120 août 20023M Innovative Properties CompanyAbsorbent pad dressing frame delivery system
US64408803 nov. 199927 août 20023M Innovative Properties CompanyPressure-sensitive adhesives having microstructured surfaces
US644109218 juin 199927 août 20023M Innovative Properties CompanyWet-stick adhesives
US644111411 juin 199927 août 20023M Innovative Properties CompanyAdhesives for use on fluorine-containing or polycarbonate surfaces
US644787530 juil. 199910 sept. 20023M Innovative Properties CompanyPolymeric articles having embedded phases
US64483018 sept. 200010 sept. 20023M Innovative Properties CompanyCrosslinkable polymeric compositions and use thereof
US64483377 oct. 199910 sept. 20023M Innovative Properties CompanyPressure sensitive adhesives possessing high load bearing capability
US645514013 janv. 199924 sept. 20023M Innovative Properties CompanyVisible mirror film glitter
US645563429 déc. 200024 sept. 20023M Innovative Properties CompanyPressure sensitive adhesive blends comprising (meth)acrylate polymers and articles therefrom
US646146723 avr. 20018 oct. 20023M Innovative Properties CompanyMedical dressings with multiple adhesives and methods of manufacturing
US64617159 juil. 19988 oct. 20023M Innovative Properties CompanyArticle closure tape for an absorbent
US646507725 janv. 200015 oct. 20023M Innovative Properties CompanyBlack line screens and methods of making same
US646867822 oct. 199722 oct. 20023M Innovative Properties CompanyConformable magnetic articles for use with traffic bearing surfaces methods of making same systems including same and methods of use
US647560913 janv. 19995 nov. 20023M Innovative Properties CompanyColor shifting film glitter
US64790737 oct. 199612 nov. 20023M Innovative Properties CompanyPressure sensitive adhesive articles and methods for preparing same
US648251010 août 200019 nov. 20023M Innovative Properties CompanyDigital printable and releasable form construction and composition useful thereto
US648940021 déc. 20003 déc. 20023M Innovative Properties CompanyPressure-sensitive adhesive blends comprising ethylene/propylene-derived polymers and propylene-derived polymers and articles therefrom
US649201912 avr. 200010 déc. 2002Moore Business FormsActivated adhesive system
US6500260 *27 mars 200131 déc. 2002Minnesota Mining And ManufacturingApparatus for applying a coating material to sheets
US65036218 févr. 20007 janv. 20033M Innovative Properties CompanyPressure sensitive adhesives and articles including radial block and acrylic polymers
US651790014 oct. 199711 févr. 20033M Innovative Properties CompanyApparatus and method for applying coating materials to individual sheet members
US651834318 juin 199911 févr. 20033M Innovative Properties CompanyWet-stick adhesives, articles, and methods
US652464915 août 200025 févr. 20033M Innovative Properties CompanyMethod of enhancing coating speed
US652467513 mai 199925 févr. 20033M Innovative Properties CompanyAdhesive-back articles
US65312067 févr. 200111 mars 20033M Innovative Properties CompanyMicrostructured surface film assembly for liquid acquisition and transport
US654872717 févr. 200015 avr. 20033M Innovative Properties CompanyFoam/film composite medical articles
US65510147 févr. 200122 avr. 20033M Innovative Properties CompanyRaised pavement marker with improved lens
US655165414 oct. 199722 avr. 20033M Innovative Properties CompanyApparatus and method for applying coating materials to individual sheet members
US656657515 févr. 200020 mai 20033M Innovative Properties CompanyPatterned absorbent article for wound dressing
US65796017 févr. 200117 juin 20033M Innovative Properties CompanyConformable multilayer films
US660779915 oct. 199819 août 20033M Innovative Properties CompanySurgical dressing with delivery system and method of manufacture
US661341125 janv. 20012 sept. 20033M Innovative Properties CompanyConformable multi-layer sheet materials
US66170204 avr. 20019 sept. 20033M Innovative Properties CompanyHot melt processable pressure sensitive adhesive comprising organophilic clay plate-like particles, a method of making, and articles made therefrom
US662427319 mars 199923 sept. 20033M Innovative Properties CompanyPlasticized acrylics for pressure sensitive adhesive applications
US662721615 févr. 200130 sept. 20033M Innovative Properties CompanySpray on bandage and drug delivery system
US663023813 juin 20017 oct. 20033M Innovative Properties CompanyBlended pressure-sensitive adhesives
US663252216 août 199614 oct. 20033M Innovative Properties CompanyBlended pressure-sensitive adhesives
US663569019 juin 200121 oct. 20033M Innovative Properties CompanyReactive oligomers
US664900528 sept. 200018 nov. 20033M Innovative Properties CompanyMulti-layer compositions comprising a fluoropolymer
US66529707 juil. 200025 nov. 20033M Innovative Properties CompanyDegradable crosslinkers, compositions therefrom, and methods of their preparation and use
US665630724 nov. 19992 déc. 20033M Innovative Properties CompanyMethod of making signs having metalized cube corner sheeting
US666430622 juil. 200216 déc. 20033M Innovative Properties CompanyCrosslinkable polymeric compositions and use thereof
US666999210 juin 200230 déc. 20033M Innovative Properties CompanyStack of sheets with repositionable adhesive alternating between opposite edges and containing one of more sheets different from other sheets
US667740220 févr. 200213 janv. 20043M Innovative Properties CompanyPressure sensitive adhesives possessing high load bearing capability
US668568226 oct. 19993 févr. 20043M Innovative Properties CompanyCarrier delivered dressing and method of manufacture
US669289525 mai 200117 févr. 20043M Innovative Properties CompanyImageable article and method of imaging
US670117212 déc. 20012 mars 20043M Innovative Properties CompanyUniversally functional biomedical electrode
US670805028 mars 200216 mars 20043M Innovative Properties CompanyWireless electrode having activatable power cell
US670971627 avr. 200123 mars 20043M Innovative Properties CompanyMicroemulsion compositions and methods of making and using same
US671618616 août 20006 avr. 20043M Innovative Properties CompanyCurable adhesive splints and methods
US672038718 févr. 199813 avr. 20043M Innovative Properties CompanyHot-melt adhesive compositions comprising acidic polymer and basic polymer blends
US672731317 janv. 200127 avr. 20043M Innovative Properties CompanyPolymeric compositions and articles with anisotropic light scattering and methods of making and using
US673196520 juin 20014 mai 20043M Innovative Properties CompanyCorrosion prevention in biomedical electrodes
US674039915 nov. 200025 mai 20043M Innovative Properties CompanyMulti-layered sealant
US674656720 déc. 20028 juin 20043M Innovative Properties CompanyMicrostructured surface film assembly for liquid acquisition and transport
US675911015 août 20006 juil. 20043M Innovative Properties CompanyStructured release liners with improved adhesion to adhesive articles
US6759121 *11 déc. 20016 juil. 20043M Innovative Properties CompanyClear adhesive sheet
US676213914 août 200113 juil. 20043M Innovative Properties CompanyFlexible adsorbent filter
US679049121 juin 200214 sept. 20043M Innovative Properties CompanyBiaxially-oriented ink receptive medium
US679737116 nov. 200028 sept. 20043M Innovative Properties CompanyArticles that include a polymer foam and method for preparing same
US680068015 mars 20015 oct. 20043M Innovative Properties CompanyHot-melt adhesive composition comprising acidic polymer and basic polymer blends
US680307227 janv. 200312 oct. 20043M Innovative Properties CompanyMethod of enhancing coating speed
US680865712 févr. 200226 oct. 20043M Innovative Properties CompanyProcess for preparing a K-type polarizer
US680873921 sept. 200126 oct. 20043M Innovative Properties CompanyDrying method for selectively removing volatile components from wet coatings
US681948617 janv. 200116 nov. 20043M Innovative Properties CompanyProjection screen having elongated structures
US68248496 août 200130 nov. 20043M Innovative Properties CompanyLaser-cuttable multi-layer sheet material
US683814218 mai 20014 janv. 20053M Innovative Properties CompanySpecular laminates
US683858919 févr. 20034 janv. 20053M Innovative Properties CompanyConformable wound dressing
US684439123 sept. 199918 janv. 2005Avery Dennison CorporationAdhesives with improved rivet properties and laminates using the same
US685538619 mars 199915 févr. 20053M Innovative Properties CompanyWet surface adhesives
US686113929 août 20021 mars 20053M Innovative Properties CompanyPressure sensitive adhesive composition and adhesive product using the same
US68669288 avr. 200215 mars 20053M Innovative Properties CompanyCleanly removable tapes and methods for the manufacture thereof
US686734211 déc. 200115 mars 20053M Innovative Properties CompanyDrug delivery dressing having fluid control film
US686949624 juil. 200322 mars 20053M Innovative Properties CompanyConformable multi-layer sheet materials
US687844023 juin 200012 avr. 20053M Innovative Properties CompanyPressure sensitive adhesive sheet and production method thereof
US688187527 janv. 200319 avr. 20053M Innovative Properties CompanyFoam/film composite medical articles
US68936552 oct. 200217 mai 20053M Innovative Properties Co.Transdermal delivery devices
US68942042 mai 200117 mai 20053M Innovative Properties CompanyTapered stretch removable adhesive articles and methods
US69027409 juil. 20017 juin 20053M Innovative Properties CompanyPyrrolidonoethyl (meth)acrylate containing pressure sensitive adhesive compositions
US69031516 févr. 20037 juin 20053M Innovative Properties CompanyWet-stick adhesives, articles, and methods
US69032438 sept. 20007 juin 20053M Innovative Properties CompanyMulti-layer absorbent wound dressing
US690576325 juin 200114 juin 20053M Innovative Properties CompanyMicrosphere adhesive coated article for use with coated papers
US691124330 avr. 200328 juin 20053M Innovative Properties CompanyAdhesives having a microreplicated topography and methods of making and using same
US69161162 avr. 200312 juil. 20053M Innovative Properties CompanyTime or time-temperature indicating articles
US692731530 juil. 19999 août 20053M Innovative Properties CompanyAdhesive composite having distinct phases
US69406433 sept. 20046 sept. 20053M Innovative Properties CompanyProjection screen having elongated structures
US694268324 mai 200213 sept. 20053M Innovative Properties CompanyWound closure system and method
US694928319 déc. 200127 sept. 20053M Innovative Properties CompanyPolymeric coextruded multilayer articles
US695815414 juil. 200325 oct. 20053M Innovative Properties CompanySpray on bandage and drug delivery system
US697660516 mai 200320 déc. 2005Kimberly-Clark Worldwide, Inc.Dispenser for sheet material
US697732317 févr. 200020 déc. 20053M Innovative Properties CompanyFoam-on-film medical articles
US698210715 sept. 19973 janv. 20063M Innovative Properties CompanyRelease liner for pressure sensitive adhesives
US699734216 mai 200314 févr. 2006Kimberly-Clark Worldwide, Inc.Dispenser for sheet material
US699734516 mai 200314 févr. 2006Kimberly-Clark Worldwide, Inc.Dispenser for sheet material
US699817921 juin 200414 févr. 20063M Innovative Properties CompanyProcess for preparing a K-type polarizer
US700514312 avr. 200228 févr. 20063M Innovative Properties CompanyGel materials, medical articles, and methods
US70152864 juin 200321 mars 20063M Innovative Properties CompanyReactive oligomers
US703028830 déc. 200418 avr. 20063M Innovative Properties CompanyConformable wound dressing
US704050226 déc. 20029 mai 2006Kinberly-Clark Worldwide, Inc.Dispenser for wet and dry interfolded sheets
US706618227 sept. 200027 juin 20063M Innovative Properties CompanyConformable adhesive wound closures
US70748391 mars 200411 juil. 20063M Innovative Properties CompanyCrosslinkable hydrophilic materials from reactive oligomers having pendent photoinitiator groups
US70748584 juin 200311 juil. 2006Heilmann Steven MReactive oligomers
US707858221 août 200118 juil. 20063M Innovative Properties CompanyStretch removable adhesive articles and methods
US708727917 juil. 20038 août 20063M Innovative Properties CompanyAdhesives and release liners with pyramidal structures
US709785312 nov. 199729 août 20063M Innovative Properties CompanyMatrix for transdermal drug delivery
US7097903 *20 févr. 200329 août 2006Nitto Denko CorporationDouble-sided pressure-sensitive adhesive sheet and method for sticking and fixing touch panel to display device
US7105225 *5 oct. 200112 sept. 20063M Innovative Properties CompanyWater contract indicator
US714051322 déc. 200328 nov. 2006Kimberly-Clark Worldwide, Inc.Convertible dispenser for sheet material
US718187529 mars 200227 févr. 20073M Innovative Properties CompanyStock material for trim caps
US71824553 sept. 200427 févr. 20073M Innovative Properties CompanyBiaxially oriented ink receptive medium
US718282930 mai 200127 févr. 20073M Innovative Properties CompanyCube corner cavity based retroreflectors with transparent fill material
US720746116 mai 200324 avr. 2007Kimberly-Clark Worldwide, Inc.Dispenser for sheet material
US721428520 août 20028 mai 20073M Innovative Properties CompanyMethod of applying a fastener portion to a diaper
US7217455 *20 mai 200215 mai 20073M Innovative Properties CompanyWeatherstrip tape and method for producing the same
US722968330 mai 200312 juin 20073M Innovative Properties CompanyThermal interface materials and method of making thermal interface materials
US72384019 juin 20003 juil. 20073M Innovative Properties CompanyGlazing element and laminate for use in the same
US725021022 nov. 200431 juil. 20073M Innovative Properties CompanyPressure-sensitive adhesives having microstructured surfaces
US726768122 juin 200511 sept. 20073M Innovative Properties CompanyWound closure system and method
US727624711 avr. 20062 oct. 20073M Innovative Properties CompanyCrosslinkable hydrophilic materials from reactive oligomers having pendent photoinitiator groups
US727627819 sept. 20022 oct. 20073M Innovative Properties CompanyImage covering laminate film and image projection sheet
US733220630 juin 200619 févr. 20083M Innovative Properties CompanyAdhesives and release liners with pyramid structures
US733264110 oct. 200319 févr. 2008Clozex Medical LlcInterlaced compositions and methods of production
US733569025 janv. 200526 févr. 20083M Innovative Properties CompanyCrosslinkable hydrophilic materials from polymers having pendent Michael donor groups
US73420472 mars 200411 mars 20083M Innovative Properties CompanyCrosslinkable hydrophilic materials from reactive oligomers having pendent unsaturated groups
US735444624 juil. 20038 avr. 2008Clozex Medical, LlcDevice for laceration or incision closure
US738498410 déc. 200310 juin 20083M Innovative Properties CompanyReactive hydrophilic oligomers
US739390116 févr. 20071 juil. 20083M Innovative Properties CompanyAcrylate adhesives containing silica nanoparticles crosslinked with polyfunctional aziridines
US74058572 sept. 200529 juil. 20083M Innovative Properties CompanyLight emitting diode (LED) device and method of making same
US741416824 juil. 200319 août 2008Clozex Medical LlcDevice for laceration or incision closure
US742278120 avr. 20049 sept. 20083M Innovative Properties CompanyTamper indicating devices and methods for securing information
US742941313 mars 200630 sept. 2008Brady Worldwide, Inc.Nonmetallic label with metallic appearance
US744284930 déc. 200528 oct. 20083M Innovative Properties CompanyThin film delivery system and method of manufacture
US744914624 mars 200411 nov. 20083M Innovative Properties CompanyColorimetric sensor
US745258830 mai 200118 nov. 20083M Innovative Properties CompanyCube corner cavity based retroreflectors with transparent fill material
US74594898 août 20062 déc. 20083M Innovative Properties CompanyReactive hydrophilic oligomers
US747371928 janv. 20086 janv. 20093M Innovative PropertiesCrosslinkable hydrophilic materials from polymers having pendent Michael donor groups
US7498078 *16 déc. 20043 mars 2009Tesa AgLayered pressure-sensitive adhesive
US751118510 sept. 200431 mars 2009Clozex Medical LlcBandage for wound or incision closure
US751803124 févr. 200614 avr. 20093M Innovative Properties CompanyConformable wound dressing
US75315958 mars 200612 mai 20093M Innovative Properties CompanyPressure-sensitive adhesive containing silica nanoparticles
US756394110 sept. 200421 juil. 2009Clozex Medical, LlcModular wound dressing system
US75982984 nov. 20086 oct. 20093M Innovative Properties CompanyReactive hydrophilic oligomers
US761224819 déc. 20023 nov. 20093M Innovative Properties CompanyAbsorbent medical articles
US76458278 mars 200612 janv. 20103M Innovative Properties CompanyHigh shear pressure-sensitive adhesive
US765209520 juin 200726 janv. 20103M Innovative Properties CompanyPressure-sensitive adhesive containing aziridinyl silanes
US765567212 déc. 20082 févr. 20103M Innovative Properties CompanyImmune response modifier formulations containing oleic acid and methods
US76593238 sept. 20099 févr. 20103M Innovative Properties CompanyHydrophilic gel from reactive hydrophilic oligomers
US771824111 mars 200418 mai 2010Larry E. Wittmeyer, Jr.Multi-functional stack of repositionable sheets
US773204611 nov. 20048 juin 20103M Innovative Properties CompanyWater contact indicator
US77447936 sept. 200529 juin 2010Lemaire Alexander BApparatus and method for growing fullerene nanotube forests, and forming nanotube films, threads and composite structures therefrom
US774499130 mai 200329 juin 20103M Innovative Properties CompanyThermally conducting foam interface materials
US774499727 juil. 200629 juin 20103M Innovative Properties CompanyWater contact indicator
US7763337 *12 oct. 200527 juil. 20103M Innovative Properties CompanyProtective film adhesive
US776714327 juin 20063 août 20103M Innovative Properties CompanyColorimetric sensors
US77810413 mai 200524 août 2010Beekley CorporationTattoo cover and related method
US778163914 janv. 200224 août 20103M Innovative Properties CompanyMedical article having fluid control film
US783871824 juil. 200323 nov. 2010Clozex Medical, LlcDevice for laceration or incision closure
US78507786 sept. 200514 déc. 2010Lemaire Charles AApparatus and method for growing fullerene nanotube forests, and forming nanotube films, threads and composite structures therefrom
US78547165 avr. 200621 déc. 20103M Innovative Properties CompanyCompression bandage system
US785883810 août 200628 déc. 20103M Innovative Properties CompanyConformable wound dressing
US787944130 avr. 20041 févr. 20113M Innovative Properties CompanyArticles that include a polymer foam and method for preparing same
US790220931 janv. 20108 mars 20113M Innovative Proerties CompanyMethod of preparing a pharmaceutical cream and minimizing imiquimod impurity formation
US79022101 févr. 20108 mars 20113M Innovative Properties CompanyReduction of IMIQUIMOD impurities at two months using refined oleic acid
US79022111 févr. 20108 mars 20113M Innovative Properties CompanyMethod of inducing interferon biosynthesis
US79022121 févr. 20108 mars 20113M Innovative Properties CompanyReduction of imiquimod impurities at six months using refined oleic acid
US79022131 févr. 20108 mars 20113M Innovative Properties CompanyPharmaceutical cream with reduced imiquimod impurities at four months using refined oleic acid
US79022141 févr. 20108 mars 20113M Innovative Properties CompanyMethod of treating a mucosal and/or dermal associated condition
US79022151 févr. 20108 mars 20113M Innovative Properties CompanyPharmaceutical creams with reduced imiquimod impurities
US79022161 févr. 20108 mars 20113M Innovative Properties CompanyPharmaceutical creams with refined oleic acid
US790224230 janv. 20108 mars 20113M Innovative Properties CompanyMethod of stabilizing imiquimod
US79022431 févr. 20108 mars 20113M Innovative Properties CompanyMethods for improving imiquimod availability at two months, four months and six months between refined and compendial
US79022441 févr. 20108 mars 20113M Innovative Properties CompanyMethod of preparing a pharmaceutical cream and minimizing imiquimod impurity formation (at least four months storage)
US79022451 févr. 20108 mars 20113M Innovative Properties CompanyMethods for reducing imiquimod impurities for two months, four months, and six months
US79022461 févr. 20108 mars 20113M Innovative Properties CompanyMethods for controlling formation of imiquimod impurities for two months, four months, and six months
US79065241 févr. 201015 mars 20113M Innovative Properties CompanyPharmaceutical cream having similar or less levels of imiquimod impurity formation as cream with BHA (comparator)
US79065251 févr. 201015 mars 20113M Innovative Properties CompanyReduction of imiquimod impurities at four months using refined oleic acid
US79065261 févr. 201015 mars 20113M Innovative Properties CompanyMethod of treating a dermal and/or mucosal associated condition
US79065271 févr. 201015 mars 20113M Innovative Properties CompanyReduction of imiquimod impurities using refined oleic acid
US790654329 janv. 201015 mars 20113M Innovative Properties CompanyMethod of reducing imiquimod impurity formation
US791079023 août 201022 mars 20113M Innovative Properties CompanyMedical article having fluid control film
US791527730 janv. 201029 mars 20113M Innovative Properties CompanyMethod of treating genital or peri-anal warts
US791527830 janv. 201029 mars 20113M Innovative Properties CompanyMethod of treating basal cell carcinoma
US791527931 janv. 201029 mars 20113M Innovative Properties CompanyMethod of treating mollescum contagiosum
US791950130 janv. 20105 avr. 20113M Innovative Properties CompanyMethod of controlling formation of imiquimod impurities
US79234631 févr. 201012 avr. 20113M Innovative Properties CompanyMethods for stabilizing imiquimod for two months, four months, and six months
US792770311 avr. 200319 avr. 20113M Innovative Properties CompanyAdhesive blends, articles, and methods
US792811629 janv. 201019 avr. 20113M Innovative Properties CompanyMethod of treating actinic keratosis
US792811731 janv. 201019 avr. 20113M Innovative Properties CompanyMethod of inducing cytokine biosynthesis
US79281181 févr. 201019 avr. 20113M Innovative Properties CompanyReduction of imiquimod impurities in pharmaceutical creams
US79395551 févr. 201010 mai 20113M Innovative Properties CompanyMethod of preparing a pharmaceutical cream and minimizing imiquimod impurity formation
US798194923 mai 200619 juil. 20113M Innovative Properties CompanyCurable hydrophilic compositions
US801229512 août 20106 sept. 2011Beekley CorporationTattoo cover and related method
US808466525 févr. 200927 déc. 20113M Innovative Properties CompanyConformable wound dressing
US81053534 oct. 200531 janv. 2012Clozex Medical, LlcWound closure kit and method of using the same
US811071827 oct. 20087 févr. 20123M Innovative Properties CompanyThin film delivery system and method of manufacture
US812409613 juil. 200728 févr. 20123M Innovative Properties CompanyImmune response modifier compositions and methods
US81246896 juin 200728 févr. 2012Dow Corning CorporationSilicone acrylate hybride composition and method of making same
US814298715 mars 200527 mars 2012Eastman Kodak CompanyMethod of producing a relief image for printing
US81484714 nov. 20103 avr. 20123M Innovative Properties CompanyAcrylic pressure-sensitive adhesives with aziridinyl-epoxy crosslinking system
US81626434 juin 201024 avr. 2012Lemaire Alexander BMethod and apparatus for growing nanotube forests, and generating nanotube structures therefrom
US81829141 avr. 201022 mai 20123M Innovative Properties CompanyWater contact indicator
US82171114 avr. 200710 juil. 2012Basf SeElectrically neutral dispersions and method of preparing same
US823233216 juin 201131 juil. 20123M Innovative Properties CompanyCured hydrophilic compositions
US824174628 janv. 200914 août 2012Brady Worldwide, Inc.Tissue cassette label
US82637114 août 201011 sept. 20123M Innovative Properties Company(Meth)acryloyl-aziridine crosslinking agents and adhesive polymers
US82879455 oct. 200716 oct. 2012Basf SeMethod and composition for enhancing the performance of an emulsion-based surface treatment
US83237739 oct. 20014 déc. 20123M Innovative Properties CompanyLaminates with structured layers
US837205123 déc. 200812 févr. 20133M Innovative Properties CompanyMedical dressing with edge port and methods of use
US838372210 juil. 201226 févr. 2013Basf SeElectrically neutral dispersions and method of preparing same
US840387312 nov. 201026 mars 20133M Innovative Properties CompanyCompression bandage system
US84097908 déc. 20112 avr. 2013Eastman Kodak CompanyMethod of producing a relief image for printing
US84102119 déc. 20112 avr. 2013Basf SeElectrically neutral dispersions and method of preparing same
US841033212 oct. 20092 avr. 20133M Innovative Properties CompanyAbsorbent medical articles
US84202149 juin 200916 avr. 20133M Innovative Properties CompanyAcrylic pressure-sensitive adhesives with aziridine crosslinking agents
US844560114 nov. 200821 mai 20133M Innovative Properties CompanyPolymeric compositions and method of making and articles thereof
US849249619 déc. 200823 juil. 20133M Innovative Properties CompanyCopolymers of nanoparticles, vinyl monomers and silicone
US85069022 oct. 200813 août 20133M Innovative Properties CompanyColorimetric sensor
US85133227 juin 200720 août 20133M Innovative Properties CompanyPolymeric beads and methods of making polymeric beads
US85248368 févr. 20133 sept. 20133M Innovative Properties CompanyCrosslinkable acrylate adhesive polymer composition
US85301178 déc. 201110 sept. 2013Eastman Kodak CompanyMethod of producing a relief image for printing
US853054516 déc. 200810 sept. 20133M Innovative Properties CompanyCopolymers of nanoparticles, vinyl monomers and silicone
US85466379 nov. 20101 oct. 20133M Innovative Properties CompanyMedical articles and methods of making using immiscible material
US855137624 avr. 20128 oct. 2013Grandnano, LlcMethod for growing carbon nanotube forests, and generating nanotube structures therefrom, and apparatus
US856941621 oct. 201129 oct. 2013Dow Corning CorporationSingle phase silicone acrylate formulation
US858101719 oct. 200912 nov. 20133M Innovative Properties CompanyConformable wound dressing
US859203414 juin 201026 nov. 20133M Innovative Properties CompanyDebondable adhesive article
US859679910 mars 20093 déc. 20133M Innovative Properties CompanyCube corner cavity based retroreflectors with transparent fill material
US859680114 oct. 20113 déc. 20133M Innovative Properties CompanyCube corner cavity based retroreflectors with transparent fill material
US860913125 janv. 200517 déc. 20133M Innovative Properties CompanyAbsorbent dressing comprising hydrophilic polymer prepared via Michael reaction
US861427829 nov. 201124 déc. 2013Dow Corning CorporationSilicone acrylate hybrid composition and method of making same
US861719930 sept. 200931 déc. 20133M Innovative Properties CompanyThin film nasal dilator with delivery system
US863676324 juil. 200328 janv. 2014Clozex Medical, LlcDevice for laceration or incision closure
US20100087116 *1 oct. 20098 avr. 2010Nitto Denko CorporationDouble-sided pressure-sensitive adhesive sheet and method for producing the same
US20130035433 *7 avr. 20117 févr. 20133M Innovative Properties CompanyPressure Sensitive Adhesives Containing Reactive, Surface-Modified Nanoparticles
US20130052918 *21 févr. 201228 févr. 2013Hoya CorporationMethod of manufacturing eyeglass lens
USRE33727 *2 nov. 198329 oct. 1991Baxter International, Inc.Bandage frame
USRE420487 mars 200718 janv. 20113M Innovative Properties CompanyLinerless double-sided pressure sensitive adhesive tape
EP0213737A1 *28 juil. 198611 mars 1987Minnesota Mining And Manufacturing CompanyPressure-sensitive adhesive tape containing hydrophobic silica
EP0313071A2 *21 oct. 198826 avr. 1989Nichiban Co. Ltd.Reactive pressure sensitive adhesive composition, sealer tape, sheet or molding by use thereof
EP0398672A1 *16 mai 199022 nov. 1990Minnesota Mining And Manufacturing CompanyMicrowave absorber for direct surface application
EP0708162A216 oct. 199524 avr. 1996Minnesota Mining And Manufacturing CompanyHeat-activatable adhesive article
EP0712695A117 nov. 199522 mai 1996Minnesota Mining And Manufacturing CompanyAbrasive articles
EP0714764A215 nov. 19955 juin 1996General Electric CompanyImproved impact resistant laminate
EP0850755A123 déc. 19961 juil. 1998Minnesota Mining And Manufacturing CompanyConformable marker sheet
EP1044797A113 avr. 199918 oct. 20003M Innovative Properties CompanyMethod for mounting ceramic tiles by means of an acrylic foam pressure sensitive adhesive
EP1234682A213 juil. 199528 août 2002Minnesota Mining And Manufacturing CompanyMethod and apparatus for applying a coating material to sheets
EP1531061A213 juil. 199518 mai 2005Minnesota Mining and Manufacturing CompanyMethod and apparatus for applying a coating material to sheets
EP1970218A214 juin 199617 sept. 2008Minnesota Mining And Manufacturing CompanyDisplay unit and methods of displaying an image
EP2138194A111 août 200030 déc. 20093M Innovative Properties CompanyFoam-on-film medical articles
EP2153827A227 sept. 200117 févr. 20103M Innovative Properties CompanyComposition for the Transdermal Delivery of Fentanyl
EP2153828A227 sept. 200117 févr. 20103M Innovative Properties CompanyComposition for the Transdermal Delivery of Fentanyl
EP2158904A227 sept. 20013 mars 20103M Innovative Properties CompanyComposition for the Transdermal Delivery of Fentanyl
EP2158905A227 sept. 20013 mars 20103M Innovative Properties CompanyComposition for the Transdermal Delivery of Fentanyl
EP2177185A218 mai 199921 avr. 20103M Innovative Properties CompanyMedical Article Having Fluid Control Film
EP2258325A19 févr. 20048 déc. 20103M Innovative Properties CompanyConformable wound dressing
EP2261700A112 mai 199915 déc. 20103M Innovative Properties CompanyCube corner cavity based retroreflectors with transparent fill material
EP2266547A127 sept. 200129 déc. 20103M Innovative Properties Co.Composition for the transdermal delivery of fentanyl
EP2267494A212 mai 199929 déc. 20103M Innovative Properties CompanyCube corner cavity based retroreflectors with transparent fill material
EP2267495A212 mai 199929 déc. 20103M Innovative Properties CompanyCube corner cavity based retroreflectors with transparent fill material
EP2275062A25 avr. 200619 janv. 20113M Innovative Properties CompanyCompression bandage system
EP2292198A25 avr. 20069 mars 20113M Innovative Properties CompanyCompression bandage system
EP2322124A15 avr. 200618 mai 20113M Innovative Properties CompanyCompression bandage system
EP2353558A29 févr. 200410 août 20113M Innovative Properties CompanyConformable wound dressing
EP2353559A29 févr. 200410 août 20113M Innovative Properties CompanyConformable wound dressing
EP2353881A18 févr. 201010 août 20113M Innovative Properties CompanyPrintable film
EP2366366A29 févr. 200421 sept. 20113M Innovative Properties CompanyConformable wound dressing
EP2462956A121 nov. 200313 juin 20123M Innovative Properties CompanyAbsorbent medical articles
EP2578412A17 oct. 201110 avr. 20133M Innovative Properties CompanyPrintable film
EP2581066A118 mai 199917 avr. 20133M Innovative Properties CompanyMedical Article Having Fluid Control Film
EP2584016A119 oct. 201224 avr. 2013Dow Corning CorporationSingle phase silicone acrylate formulation
EP2599847A129 nov. 20125 juin 2013Dow Corning CorporationA Silicone Acrylate Hybrid Composition and Method of Making Same
EP2604444A115 déc. 201119 juin 20133M Innovative Properties CompanyMethod of making a graphic comprised of prespaced graphic elements
EP2604664A115 déc. 201119 juin 20133M Innovative Properties CompanyPolyvinyl chloride adhesive film
EP2604665A115 déc. 201119 juin 20133M Innovative Properties CompanyColored polyvinyl chloride adhesive film
WO1982002559A1 *15 janv. 19825 août 1982Minnesota Mining & MfgPressure-sensitive adhesive copolymers of acrylic acid ester and n-vinyl pyrrolidone
WO1984003837A1 *6 avr. 198411 oct. 1984Minnesota Mining & MfgAdhesive and adhesive-coated sheet material for moist skin
WO1994021207A28 févr. 199429 sept. 1994Minnesota Mining & MfgWindowless frame delivered dressing and method of manufacture
WO1997040484A1 *21 août 199630 oct. 1997Minnesota Mining & MfgSecurity label with diffusing identifier medium and method of making same
WO1998038955A12 juil. 199711 sept. 1998Minnesota Mining & MfgMedical adhesive bandage, delivery system and method
WO1999011187A130 déc. 199711 mars 1999Minnesota Mining & MfgMethod and apparatus for detecting loss of contact of biomedical electrodes with patient skin
WO1999016377A129 sept. 19988 avr. 1999Minnesota Mining & MfgOphthalmic drape with tear line and method
WO1999061321A16 janv. 19992 déc. 1999Minnesota Mining & MfgWrapped material, and method and apparatus for wrapping such material
WO2001060422A111 août 200023 août 20013M Innovative Properties CoFoam/film composite medical articles
WO2002025194A121 sept. 200128 mars 20023M Innovative Properties CoDrying method for selectively removing volatile components from wet coatings
WO2002089906A28 avr. 200214 nov. 20023M Innovative Properties CoCorrosion prevention in biomedical electrodes
WO2004000531A121 avr. 200331 déc. 20033M Innovative Properties CoBiaxially-oriented ink receptive medium
WO2004073567A19 févr. 20042 sept. 20043M Innovative Properties CoConformable wound dressing
WO2007102975A116 févr. 200713 sept. 20073M Innovative Properties CoPressure sensitive adhesive containing silica nanoparticles
WO2010065355A123 nov. 200910 juin 20103M Innovative Properties CompanyAziridine-functional photoactive crosslinking compounds
WO2010088122A121 janv. 20105 août 2010Brady Worldwide, Inc.Tissue cassette label
WO2010117612A223 mars 201014 oct. 20103M Innovative Properties CompanyDimensionally stable nonwoven fibrous webs and methods of making and using the same
WO2010144548A29 juin 201016 déc. 2010Regear Life Sciences, Inc.Shielded diathermy applicator with automatic tuning and low incidental radiation
WO2010147930A115 juin 201023 déc. 20103M Innovative Properties CompanyConformable medical dressing with self supporting substrate
WO2011090984A119 janv. 201128 juil. 20113M Innovative Properties CompanyCrosslinkable acrylate adhesive polymer composition
WO2012012417A119 juil. 201126 janv. 20123M Innovative Properties CompanyTransdermal adhesive compositions, devices, and methods
WO2012044528A123 sept. 20115 avr. 20123M Innovative Properties CompanyHot melt processable pressure sensitive adhesives containing fibrous materials
WO2012082448A16 déc. 201121 juin 20123M Innovative Properties CompanyPressure sensitive adhesives for low surface energy substrates
WO2012092121A122 déc. 20115 juil. 20123M Innovative Properties CompanyAn elastic strip
WO2012092343A228 déc. 20115 juil. 20123M Innovative Properties CompanyAn apertured hydrogel
WO2013009725A110 juil. 201217 janv. 20133M Innovative Properties CompanyA wound dressing assembly
WO2013012973A219 juil. 201224 janv. 20133M Innovative Properties CompanyDebondable adhesive article and methods of making and using the same
WO2013052624A14 oct. 201211 avr. 20133M Innovative Properties CompanyPrintable film
WO2013059549A119 oct. 201225 avr. 20133M Innovative Properties CompanyArticles with thin melt coatings and methods for making same
WO2013081877A119 nov. 20126 juin 20133M Innovative Properties CompanyMethod of making coiled-filament nonwoven web and articles
WO2013081879A119 nov. 20126 juin 20133M Innovative Properties CompanyAssembled intermediate comprising staple fiber nonwoven web and articles
WO2013082355A130 nov. 20126 juin 20133M Innovative Properties CompanyAssembled intermediate comprising a coiled-filament nonwoven web and articles
WO2013090191A210 déc. 201220 juin 20133M Innovative Properties CompanyMethod of making pressure-sensitive adhesive article including active agent
WO2013090654A114 déc. 201220 juin 20133M Innovative Properties CompanyPolyvinyl chloride adhesive film
WO2013090656A114 déc. 201220 juin 20133M Innovative Properties CompanyMethod of making a graphic comprised of prespaced graphic elements
WO2013090657A114 déc. 201220 juin 20133M Innovative Properties CompanyColored polyvinyl chloride adhesive film
WO2013096076A113 déc. 201227 juin 20133M Innovative Properties CompanyAdhesive article with release layer including polymerized (meth)acrylated silicone
WO2013162680A119 févr. 201331 oct. 20133M Innovative Properties CompanyConforming securement articles and methods of use
WO2013180832A15 avr. 20135 déc. 20133M Innovative Properties CompanyAbsorbent article comprising polymeric foam and intermediates
WO2014014504A112 mars 201323 janv. 20143M Innovative Properties CompanyA securement assembly
WO2014036347A130 août 20136 mars 20143M Innovative Properties CompanyMedical article securement systems comprising a bracket and a flap