US2535869A - Thiourea impregnated sealing compound - Google Patents

Thiourea impregnated sealing compound Download PDF

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US2535869A
US2535869A US674646A US67464646A US2535869A US 2535869 A US2535869 A US 2535869A US 674646 A US674646 A US 674646A US 67464646 A US67464646 A US 67464646A US 2535869 A US2535869 A US 2535869A
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Prior art keywords
thiourea
impregnated
compound
sealing
sealing compound
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US674646A
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Julius L Schneider
Raymond J Evans
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Continental Can Co Inc
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Continental Can Co Inc
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1025—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by non-chemical features of one or more of its constituents
    • C09K3/1028—Fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/06—Copolymers with styrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
    • C08K5/405—Thioureas; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0692—Fibres
    • C09K2200/0697—Cellulose fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S524/925—Natural rubber compositions having nonreactive materials, i.e. NRM, other than: carbon, silicon dioxide, glass titanium dioxide, water, hydrocarbon or halohydrocarbon

Definitions

  • Food containers such as tin plated metal cans are generally satisfactory with many food compounds and the like which by their nature do not attack the tin plate lining of the cans.
  • tin plate lining of the cans there is a considerable number of products having slightly acid character which have a tendency to attack the tin plate and corrode the foundation metal. This is particularly true at the seams which have been made in the process of forming or closing the container. and where the inner tin plate has been impaired by bending or abrasion.
  • a still further object of the invention is to insure a gradual leaching effect or discharge.
  • the inhibitor is supplied over a period of several weeks after the can is filled and sealed and hence any corrosive activity becoming evident in the product during storage will be immediately met and counteracted and the corrosion of the tin plate inhibited.
  • a sealing composition essentially a rubber-like material compounded with a resin, zinc oxide, anti-oxidants, carbon black and other commonly used ingredients.
  • a sealing compound is applied to the groove and curl of the can end so that it will form an effective hermetic seal after being closed.
  • such a sealing composition may be the medium by which an inhibiting compound is supplied. Where this compound is added to the sealing composition direct, much of the compound is contained uniformly distributed in the body of the sealing composition and not readily available at the surface. This may be called a capsuling effect and as a consequence only a minor proportion of the inhibiting compound is available to be taken up by the contents of the can during packing and storage.
  • the inhibitor it is our purpose to uniformly disperse in the sealing composition a fibrous absorbent which is impregnated with the inhibiting compound.
  • a fibrous absorbent which is impregnated with the inhibiting compound.
  • the fibers extend inwardly from the surface of the layer of sealing compound, they have a wicking effect so that the liquids contained in the can will dissolve and release the inhibiting compound with which the absorbent fibers may be impregnated.
  • a suitable inhibiting compound may be prepared by dissolving thiourea in acetone and water. This may then be taken up by saturating cellulose flock with the solution. It is desirable to use flock in which the alpha cellulose is equal to 92% or better.
  • the ratios used are as: follows:
  • Fibrous absorbent cellulose flock, 92 per cent alpha
  • Thiourea 12 lb to Acetone
  • 32.0 lb to Water 32.0 lb to Water
  • synthetic resin dissolved in a suitable petroleum solvent. The mixture should then be stirred briefly.
  • synthetic resin solution we use the following materials;
  • Ratio to rubber Rubber GR-S
  • 30.0 lb Resin Piccolyte 8-115
  • 4.0 lb 1 to 8 Zinc oxide 54.0 lb 2 to 1
  • Antioxidant Agerite White
  • 0.6 lb 1 to4% Carbon black 0.15 lb 0 to 0.5
  • the rubber is added to the impregnated fiber and resin solution which is then stirred until the dispersion is uniform. This may take from 2% to .30 hours at room temperature.
  • the dried sealing compound After application to the container surface and drying, the dried sealing compound will have the following approximate percentage composi- As suggested above, this compound may be spread thinly upon the groove and curl of the container end and also upon the side seam of the container. After the end is seamed to the container, the compound forms a hermetic seal.
  • the watery contents of the can in contact with the sealing compound will gradually dissolve the inhibiting compound and leach it out. It has been observed that perhaps 20% of the inhibitor is thus leached out in the first two weeks of storage.
  • Typical acid contents may be apple-sauce, apple juice, strawberries, sour cherries or other acid fruits.
  • the formula for the inhibitor impregnated absorbent may vary within a wide range. While we have suggested the use of alpha cellulose flock of 2% mesh, other absorbent fibrous materials may be substituted such as finely ground wood fiber and the like.
  • thiourea is one oi several inhibitors found suitable ior this purpose, and any of these and amalogous compounds may be used in the present instance.
  • a solvent for the inhibitor we may substitute other aliphatic alcohols such as methanol and isopropyl alcohol.
  • Piccolyte 8-115 which is a pure hydrocarbon terpene resin having a melting point of 239 F. However, it may be replaced by ester gum which is a glyceryl ester of rosin, melting point 200 F. and acid number 6 to 8. This will also suggest other analogous resins suitable for this purpose.
  • Agerite white is the trade name for aldolalpha naphthyl amine (Condensed Chemical Dictionary. 1942)
  • the Skellysolve B is a petroleum solvent having a boiling range of 145 to 160 F.
  • GR-S rubber In place of the GR-S rubber we may also use natural rubber, butyl rubber and the like commonly known substitutes.
  • alumina and tor antioxidant any suitable one such as Flectol H (condensation product of acetone-aniline) is suitable.
  • the addition of the inhibiting substance to the sealing dough by means of an absorbent fiber forms a very convenient means of ensuring an adequate supply for discharge into the can contents.
  • the inhibitor is leached out gradually as needed. The leaching continues until the major part of the available inhibitor is thus ren dcred available to the contents of the can.
  • the use of a sealing composition containing two parts of thiourea per one million parts of the volume of the can is found to be as efl'ective as six parts per million when the thiourea is compounded with the sealing dough without fiber. Expressed in another way, more of the thiourea is actually made available for use and hence less has to be incorporated in the sealing compound.
  • the corrosion inhibiting composition may be compounded of a considerable number of diflerent ingredients and still come within the scope of the invention as defined in the following claims:
  • a can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing suflicient fibrous porous'ccllulosic absorbent uniformly distributed therein to be partially exposed at its surface when spread, said absorbent being impregnated with thiourea.
  • a can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing sufllcient fibrous porous cellulosic absorbent uniformly distributed therein to form an hispidulous surface when spread, said absorbent being impregnated with thiourea.
  • a can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing suflicient cellulosic flock uniformly distributed therein to be partially exposed at its surface when spread, said flock being impregnated with thiourea.
  • a can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing suiificient cellulosic flock uniformly distributed therein to be partially exposed at its surface when spread, said flock being impregnated with thiourea in approximately seven per cent of the total weight.
  • a can sealing composition for inhibiting corrosion containing a rubbery hydrocarbon plastic sealing compound insoluble in water, a compatible resin insoluble in water, zinc oxide and sumcient thiourea-impregnated cellulosic flock to appear partially exposed on the surface of the composition when thinly spread.
  • a can sealing composition for inhibiting corrosion containing a rubbery hydrocarbon plastic sealing compound insoluble in water, a compatible resin insoluble in water, zinc oxide, acetone, water, and sufllcient thiourea-impregnated cellulosic flock to appear partially exposed on the surface of the composition when thinly spread.
  • a can sealing composition for inhibiting corrosion containing approximately 17 parts by weight or a rubbery hydrocarbon plastic sealing compound insoluble in water; 9 parts or a compatible resin insoluble in water; 31 parts of zinc oxide, 36 parts of cellulosic flock impregnated 5 with 7 parts of thiourea, and fractional parts each of antioxidant and carbon black.
  • a spreadable can sealing composition for inhibiting corrosion containing approximately 17 parts by weight or a rubbery hydrocarbon plastic substance, 9 parts or a compatible resin insoluble in water, 31 parts of zinc oxide, 36 parts of a fibrous absorbent impregnated with 7 parts of thiourea, and at least 100 parts by weight of a volatile hydrocarbon solvent.

Description

Patented Dec. 26, 1950 THIOUREA IMPREGNATED SEALING MPOUND Julius L. Schneider, Chicago, and Raymond J. Evans. Bensenville, Ill., aasilnors to Continental Can Company, Incorporated, New York, N. Y., a corporation of New York No Drawing. Application June 5, 1946, Serial No. 674,648
8 Claims. (Cl. 260-174) The following specification relates to our invention in improvements in corrosion inhibiting compositions as applied to metal containers for food products and other compounds which are apt to corrode the metal lining of the container.
Food containers such as tin plated metal cans are generally satisfactory with many food compounds and the like which by their nature do not attack the tin plate lining of the cans. However, there is a considerable number of products having slightly acid character which have a tendency to attack the tin plate and corrode the foundation metal. This is particularly true at the seams which have been made in the process of forming or closing the container. and where the inner tin plate has been impaired by bending or abrasion.
The provision in such a container of a source of corroding inhibiting composition has been suggested. For example, the prior patent of Stevenson and Flugge granted August 1, 1939, No. 2,168.107, discloses a sheet metal container in which a plastic sealing compound within the seams contains an inhibiting substance. However, no special provision has been made to regulate the discharge or insure the maximum availability of the inhibitor during storage.
It is a principal object of our invention to provide a sealing composition of such a container with a suitable inhibitor having a maximum availability and thus permitting a reduction in actual quantity of the inhibitor present.
It is a further object of our invention to increase the availability of the inhibitor to more than what is localized in the surface of the sealing compound. In this way the capsuling effect of the plastic composition is overcome. and more of the inhibiting composition rendered available.
A still further object of the invention is to insure a gradual leaching effect or discharge. Thus the inhibitor is supplied over a period of several weeks after the can is filled and sealed and hence any corrosive activity becoming evident in the product during storage will be immediately met and counteracted and the corrosion of the tin plate inhibited.
We have set out in the following description the preferred mode of attaining the above objects and others which will be readily apparent.
It is usual to provide a sealing composition, essentially a rubber-like material compounded with a resin, zinc oxide, anti-oxidants, carbon black and other commonly used ingredients. Such a sealing compound is applied to the groove and curl of the can end so that it will form an effective hermetic seal after being closed.
As pointed out in the above mentioned patent, such a sealing composition may be the medium by which an inhibiting compound is supplied. Where this compound is added to the sealing composition direct, much of the compound is contained uniformly distributed in the body of the sealing composition and not readily available at the surface. This may be called a capsuling effect and as a consequence only a minor proportion of the inhibiting compound is available to be taken up by the contents of the can during packing and storage.
To increase the availability of the inhibitor, it is our purpose to uniformly disperse in the sealing composition a fibrous absorbent which is impregnated with the inhibiting compound. As the fibers extend inwardly from the surface of the layer of sealing compound, they have a wicking effect so that the liquids contained in the can will dissolve and release the inhibiting compound with which the absorbent fibers may be impregnated.
Finally, it is found that the addition of a dissolved resin to the fibers permits its more effective dispersion in the dough.
A suitable inhibiting compound may be prepared by dissolving thiourea in acetone and water. This may then be taken up by saturating cellulose flock with the solution. It is desirable to use flock in which the alpha cellulose is equal to 92% or better. The ratios used are as: follows:
Range of parts by weight Fibrous absorbent (cellulose flock, 92 per cent alpha), 63.0 lb 30 to 75 Thiourea, 12 lb to Acetone, 32.0 lb to Water, 14.0 lb u 10 to 20 To the saturated flock there is then added synthetic resin dissolved in a suitable petroleum solvent. The mixture should then be stirred briefly. For this resin solution we use the following materials;
Range of parts by weight Resin (Piccolyte 5-115), 12.0 lb 8 to 20 Solvent (Skellysolve B), 190.0 lb..... to 225 The above mixture is then combined with a milled mixture of rubber-like material preferably compounded as follows:
Ratio to rubber Rubber (GR-S), 30.0 lb Resin (Piccolyte 8-115), 4.0 lb 1 to 8 Zinc oxide, 54.0 lb 2 to 1 Antioxidant (Agerite White), 0.6 lb 1 to4% Carbon black, 0.15 lb 0 to 0.5
aeeaeee The rubber is added to the impregnated fiber and resin solution which is then stirred until the dispersion is uniform. This may take from 2% to .30 hours at room temperature. The resulting compound may be strained through suitable filter equipment and stored in air-tight drums untii used without sufiering loss or prop= erties.
There will be a total of 42 to 44% by weight of solids in the above composition.
After application to the container surface and drying, the dried sealing compound will have the following approximate percentage composi- As suggested above, this compound may be spread thinly upon the groove and curl of the container end and also upon the side seam of the container. After the end is seamed to the container, the compound forms a hermetic seal.
The watery contents of the can in contact with the sealing compound will gradually dissolve the inhibiting compound and leach it out. It has been observed that perhaps 20% of the inhibitor is thus leached out in the first two weeks of storage.
Under such circumstances the inhibitor pro tects the metal from attack by acid contents of the container. Typical acid contents may be apple-sauce, apple juice, strawberries, sour cherries or other acid fruits.
The sealing compound containing the saturated fiber has a slightly roughened hispidulous surface due to the fact that the fiber projects slightly from. the surface. This is, of course, not snmcient to interfere with the sealing efiect. However, it promotes the availability of the in= hibiting compound present.
The formula for the inhibitor impregnated absorbent may vary within a wide range. While we have suggested the use of alpha cellulose flock of 2% mesh, other absorbent fibrous materials may be substituted such as finely ground wood fiber and the like.
As pointed out in the above identified patent, thiourea is one oi several inhibitors found suitable ior this purpose, and any of these and amalogous compounds may be used in the present instance.
As a solvent for the inhibitor we may substitute other aliphatic alcohols such as methanol and isopropyl alcohol.
In compounding the synthetic resin we have used Piccolyte 8-115 which is a pure hydrocarbon terpene resin having a melting point of 239 F. However, it may be replaced by ester gum which is a glyceryl ester of rosin, melting point 200 F. and acid number 6 to 8. This will also suggest other analogous resins suitable for this purpose.
Agerite white is the trade name for aldolalpha naphthyl amine (Condensed Chemical Dictionary. 1942) The Skellysolve B is a petroleum solvent having a boiling range of 145 to 160 F.
For this there may be substituted higher boil-.- ing' solvents such as solvent naphtha B boiling from 160 to. 240 F.
In place of the GR-S rubber we may also use natural rubber, butyl rubber and the like commonly known substitutes.
In place of zinc oxide we may use alumina and tor antioxidant any suitable one such as Flectol H (condensation product of acetone-aniline) is suitable.
The addition of the inhibiting substance to the sealing dough by means of an absorbent fiber forms a very convenient means of ensuring an adequate supply for discharge into the can contents. The inhibitor is leached out gradually as needed. The leaching continues until the major part of the available inhibitor is thus ren dcred available to the contents of the can. As a consequence the use of a sealing composition containing two parts of thiourea per one million parts of the volume of the can is found to be as efl'ective as six parts per million when the thiourea is compounded with the sealing dough without fiber. Expressed in another way, more of the thiourea is actually made available for use and hence less has to be incorporated in the sealing compound.
As indicated above, the corrosion inhibiting composition may be compounded of a considerable number of diflerent ingredients and still come within the scope of the invention as defined in the following claims:
What we claim is:
1. A can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing suflicient fibrous porous'ccllulosic absorbent uniformly distributed therein to be partially exposed at its surface when spread, said absorbent being impregnated with thiourea.
2. A can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing sufllcient fibrous porous cellulosic absorbent uniformly distributed therein to form an hispidulous surface when spread, said absorbent being impregnated with thiourea.
3. A can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing suflicient cellulosic flock uniformly distributed therein to be partially exposed at its surface when spread, said flock being impregnated with thiourea.
4. A can sealing composition for inhibiting corrosion comprising a rubbery hydrocarbon plastic sealing compound insoluble in water containing suiificient cellulosic flock uniformly distributed therein to be partially exposed at its surface when spread, said flock being impregnated with thiourea in approximately seven per cent of the total weight.
5. A can sealing composition for inhibiting corrosion containing a rubbery hydrocarbon plastic sealing compound insoluble in water, a compatible resin insoluble in water, zinc oxide and sumcient thiourea-impregnated cellulosic flock to appear partially exposed on the surface of the composition when thinly spread.
6. A can sealing composition for inhibiting corrosion containing a rubbery hydrocarbon plastic sealing compound insoluble in water, a compatible resin insoluble in water, zinc oxide, acetone, water, and sufllcient thiourea-impregnated cellulosic flock to appear partially exposed on the surface of the composition when thinly spread.
7. A can sealing composition for inhibiting corrosion containing approximately 17 parts by weight or a rubbery hydrocarbon plastic sealing compound insoluble in water; 9 parts or a compatible resin insoluble in water; 31 parts of zinc oxide, 36 parts of cellulosic flock impregnated 5 with 7 parts of thiourea, and fractional parts each of antioxidant and carbon black.
8. A spreadable can sealing composition for inhibiting corrosion containing approximately 17 parts by weight or a rubbery hydrocarbon plastic substance, 9 parts or a compatible resin insoluble in water, 31 parts of zinc oxide, 36 parts of a fibrous absorbent impregnated with 7 parts of thiourea, and at least 100 parts by weight of a volatile hydrocarbon solvent.
JULIUS L. SCHNEIDER. RAYMOND J. EVANS.
6 REFERENCES orrnn The following references are of record in the Number Name Date 1,039,802 Randel Oct. 1, 1912 1,478,782 Dewey et a1 Dec. 24, 1923 2,052,582 Robinson Sept. 1, 1936 2,148,862 Kern Feb. 28, 1939 2,168,107 Stevenson et a1 Aug; 1, 1939 2,320,716 Corkery June: 1. 1943

Claims (1)

1. A CAN SEALING COMPOSITION FOR INHIBITING CORROSION COMPRISING A RUBBERTY HYDROCARBON PLASTIC SEALING COMPOUND INSOLUBLE IN WATER CONTAINING SUFFICIENT FIBROUS POROUS CELLULOSIC ABSORBENT UNIFORMLY DISTRIBUTED THEREIN TO BE PARTIALLY EXPOSED AT ITS SURFACE WHEN SPREAD, SAID ABSORBENT BEING IMPREGNATED WITH THIOURES
US674646A 1946-06-05 1946-06-05 Thiourea impregnated sealing compound Expired - Lifetime US2535869A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698816A (en) * 1952-03-14 1955-01-04 Us Rubber Co Coated fabric and method of making same
US2763883A (en) * 1953-11-09 1956-09-25 Otto E Wolff Treated paint brush and process and composition for making same
US2772903A (en) * 1951-01-17 1956-12-04 American Marietta Co Sealing member
US3391105A (en) * 1964-11-30 1968-07-02 Phillips Petroleum Co Production of carbon black
US3507818A (en) * 1966-06-16 1970-04-21 West Chester Chem Co Sealants for fluid containers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1039802A (en) * 1912-05-02 1912-10-01 Frank L Randel Preserving food.
US1478782A (en) * 1921-07-28 1923-12-25 Dewey Bradley Top for can bodies
US2052582A (en) * 1936-09-01 Sealing gasket
US2148862A (en) * 1933-11-16 1939-02-28 Firm Chem Fab R Baumheier Komm Anticorrosion agent
US2168107A (en) * 1935-04-19 1939-08-01 Continental Can Co Container structure with inhibitor
US2320716A (en) * 1940-04-13 1943-06-01 Pennsylvania Ind Chemical Corp Terpene adhesive

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052582A (en) * 1936-09-01 Sealing gasket
US1039802A (en) * 1912-05-02 1912-10-01 Frank L Randel Preserving food.
US1478782A (en) * 1921-07-28 1923-12-25 Dewey Bradley Top for can bodies
US2148862A (en) * 1933-11-16 1939-02-28 Firm Chem Fab R Baumheier Komm Anticorrosion agent
US2168107A (en) * 1935-04-19 1939-08-01 Continental Can Co Container structure with inhibitor
US2320716A (en) * 1940-04-13 1943-06-01 Pennsylvania Ind Chemical Corp Terpene adhesive

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772903A (en) * 1951-01-17 1956-12-04 American Marietta Co Sealing member
US2698816A (en) * 1952-03-14 1955-01-04 Us Rubber Co Coated fabric and method of making same
US2763883A (en) * 1953-11-09 1956-09-25 Otto E Wolff Treated paint brush and process and composition for making same
US3391105A (en) * 1964-11-30 1968-07-02 Phillips Petroleum Co Production of carbon black
US3507818A (en) * 1966-06-16 1970-04-21 West Chester Chem Co Sealants for fluid containers

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