WO1999023307A1 - Compositions and processes for increasing hot stock sizing effectiveness - Google Patents
Compositions and processes for increasing hot stock sizing effectiveness Download PDFInfo
- Publication number
- WO1999023307A1 WO1999023307A1 PCT/US1998/022635 US9822635W WO9923307A1 WO 1999023307 A1 WO1999023307 A1 WO 1999023307A1 US 9822635 W US9822635 W US 9822635W WO 9923307 A1 WO9923307 A1 WO 9923307A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature
- paper making
- making process
- wet part
- paper
- Prior art date
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/17—Ketenes, e.g. ketene dimers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/62—Rosin; Derivatives thereof
Definitions
- This invention relates to paper sizing compositions, and to processes of sizing paper, as well as processes of producing sized paper from paper stock, such as paper stock comprising cellulose fibers.
- Paper is made by a process that includes forming a paper making pulp or slurry, followed by forming the pulp or slurry into a membrane from which the paper sheet is eventually formed.
- the wet part (as this term is used herein) of the process includes all the stages in furnish preparation, including pulp blending and refining, through thick stock and thin stock blending, chemical additions and dilutions with both white water and fresh incoming water, to the point of deposition of fiber and membrane formation on the wire, at the wet end of the paper making process.
- the wet part of the process includes all stages of the paper making process through the formation of the sheet.
- internal sizing refers to sizing associated with the addition of size at the wet part of the paper making process, and thus internal sizing or sizing at the wet part of the paper making process refers to the addition of size at any of the stages of the wet part of the process.
- Ketene dimers including alkyl ketene dimers and alkenyl ketene dimers, and multimers of these materials are all collectively referred to herein as "AKD.”
- the rosin size materials currently in use will lose as much as 50% of their effectiveness or efficiency as the temperature, during the wet part of the paper making process, increases from about 40°C to 50°C to 55°C.
- AKD is less affected, chemically, by these more aggressive conditions, deposits which contaminate the machine and the formation of non- sizing byproducts, which interfere with efficiency and sometimes with subsequent paper converting stages, will be minimized by sizing materials, that reduce the amount of vulnerable chemical at source.
- mixtures of (a) rosin size and (b) ketene dimer and/or multimer have superior sizing properties as compared to either of the sizes used separately for sizing cellulosic products, including paper and board, at temperatures exceeding 40°C, preferably up to 70°C and higher, during the wet part of the paper making process.
- mixtures of rosin size and ketene dimer and/or multimer are more efficient sizes for paper made under hot stock conditions, than the sizes used on their own, in similar conditions.
- Suitable ketene dimers and multimers comprise AKD sizing agents comprising a member selected from the group consisting of alkyl (straight or branched) ketene dimers, alkenyl (straight or branched) ketene dimers, and multimers of alkyl ketene dimers and alkenyl ketene dimers, and mixtures of the foregoing.
- Suitable AKD components comprise ketene dimers of Formula I, below:
- R 1 and R 2 which can be the same or different, are organic hydrophobic groups, defined in further detail below.
- Suitable AKD multimers for use in the present invention include compounds of Formula (II), below:
- the AKD component can include compounds of Formula I alone, compounds of Formula II alone, or mixtures of compounds of Formulae I and II.
- the invention comprises a method of processing pulp with a sizing agent, comprising adding to a cellulosic pulp, in a wet part of a paper making process, a sizing mixture of (a) rosin material and (b) an AKD sizing agent wherein at least a portion of the wet part of the paper making process is at a temperature of at least about 40°C.
- the AKD sizing agent can comprise a member selected from the group consisting of ketene dimers, ketene multimers and mixtures thereof.
- the AKD sizing agent can also comprise a member selected from the group consisting of alkyl ketene dimers, alkenyl ketene dimers, and multimers and mixtures thereof.
- the invention comprise a method of processing pulp with a sizing agent, comprising: adding to a cellulosic pulp, in a wet part of a paper making process, a sizing mixture of (a) rosin material and (b) an AKD sizing agent, the AKD sizing agent comprising at least one compound selected from compounds of the formula:
- R 1 and R 2 which can be the same or different, are organic hydrophobic groups, selected from saturated or unsaturated hydrocarbon, straight or branched chain alkyl having at least 6 C atoms, cycloalkyl having at least 6 carbon atoms, aryl, aralkyl and alkaryl, and/or a compound of the formula:
- n is an integer of from 1, to about 20;
- R and R" are the same or different and are an organic hydrophobic group having at least 6 C atoms, independently selected from the group of straight (linear) or branched alkyl or straight (linear) or branched alkenyl; and
- R' is a branched or straight chain, or alicyclic, of from about 1 to about 40 carbon atoms, and mixtures of compounds of the foregoing compounds, wherein at least a portion of the wet part of the paper making process is at a temperature of at least about 40°C.
- the temperature of at least a portion of the wet part of the paper making process is at a temperature of at least about 40 °C, and can be much higher, such as at least about 70°C or higher, with temperatures at which the process can be performed including at least about 45°C, at least about 50°C, at least about 55°C, at least about 60°C, at least about 65°C.
- This temperature can be throughout the entire process, substantially throughout the entire process, or only a portion of the process.
- Each of the foregoing processes can also preferably be conducted with sizing mixtures further comprising (c) alum.
- the components (a) and (b), and optionally (c) can be added during any portion of process, e.g., any portion of the wet part.
- Figure 1 is a schematic illustration of a process for making and sizing paper in accordance with the invention, carried out continuously.
- the present invention has particular application in internal sizing, i.e., sizing associated with the addition of size to the paper making process at the wet part of the paper making process.
- internal sizing i.e., sizing associated with the addition of size to the paper making process at the wet part of the paper making process.
- ketene dimers includes the occurrence of a single ketene dimer and mixtures of various ketene dimers.
- mixtures of (a) rosin and (b) ketene dimers and/or multimers are more effective at these high temperature and pH paper making conditions and that this synergy leads to more efficient sizing.
- Rosin and AKD materials suitable for application in this invention include any such material that act as sizing agents and can be utilized in various forms, such as in aqueous dispersions and emulsions.
- Suitable rosin materials include tall oil rosin, wood rosin and gum rosin.
- the rosin component can be fortified or adducted by reaction with an ⁇ ,B- unsaturated polybasic acid or anhydride. It can also be modified by mixture with rosin esters or by direct esterification with for example glycerol or pentaerythritol. Rosin anhydrides are also derivatives of rosin which are useful components in this process.
- Suitable rosin materials are well known to those of ordinary skill in the paper making art. Suitable rosin materials are discussed in U.S. Patent No. 4,522,686 to DUMAS, cited and incorporated by reference above. This patent and all documents cited therein relating to rosin materials are specifically incorporated by reference herein for their disclosures of suitable rosin components.
- Suitable ketene dimers and/or multimers include saturated (branched and/or straight chain) and unsaturated (branched and/or straight chain) compounds.
- Preferred compounds include ketene dimers of Formula I, as described above.
- Preferred compounds of Formula I are those wherein R 1 and R 2 , which can be the same or different, are organic hydrophobic groups, preferably saturated or unsaturated hydrocarbon structures such as alkyl and alkenyl (each can independently be straight or branched chain) having at least 6 C atoms, more preferably at least 8 C atoms, cycloalkyl having at least 6 carbon atoms, aryl, aralkyl and alkaryl, and preferably straight or branched alkyl and alkenyl groups of 12-30 C atoms, more preferably 16-22 C atoms, and in some embodiments, most preferably 16-18 C atoms.
- alkyl ketene dimers in cases where R 1 and R 2 are both saturated, the compounds of Formula I can be termed alkyl ketene dimers.
- the compounds of Fomiula I in cases wherein one or both of R 1 and R 2 contain unsaturation (by virtue of, for example, the presence of one or more double bonds) the compounds of Fomiula I can be termed alkenyl ketene dimers.
- alkyl ketene dimers and alkenyl ketene dimers are embraced by the term AKD herein, and therefore by Formula I.
- R 1 , and R 2 which can be the same or different, can have mono or polyunsaturation, can be straight or branched chained, and have from about 1 to about 5 double bonds in the chain, preferably from about 1 to about 3 double bonds and more preferably 1 or 2 double bonds and contain the carbon atom ranges specified above.
- Suitable ketene multimers e.g., 2-oxetanone-based ketene multimers, are also well- known to those of ordinary skill in the art.
- suitable ketene multimers for use with the present invention are those wherein n is an integer of at least 1, preferably 1 to about 20 and more preferably about 1 to about 8, even more preferably about 1 to about 6, and even more preferably about 2 to about 5.
- Mixtures of the 2-oxetanone ketene multimers preferably contain regio isomers of such multimer compounds and preferably contain an average n of from about 1 to about 6 and more preferably from about 2 to about 5.
- R and R" are substantially hydrophobic in nature, are acyclic, are preferably hydrocarbons of at least about 4 carbon atoms in length, preferably at least 6, and may be the same or different.
- R and R" are more preferably about C 10-C 20 and most preferably about C 14-C 16.
- R and R", which may be the same or different, are preferably independently selected from the group of straight (linear) or branched alkyl, or straight (linear) or branched alkenyl.
- R and R" are more preferably linear alkenyl.
- R and R" substituents are straight alkyl chains and preferably at least 25% by weight of the sizing agent comprises the 2-oxetanone structure in which at least one of R and R" is not straight chain (linear) alkyl.
- R and R" are ordinarily derived from a monocarboxylic acid reactant, e.g., fatty acid and preferably an unsaturated fatty acid, when the ketene multimer is prepared from reaction of a monoacid component with a diacid component, as described below.
- a monocarboxylic acid reactant e.g., fatty acid and preferably an unsaturated fatty acid
- R' may be a branched, straight chain, i.e., linear, or alicyclic, i.e., cyclic-containing, hydrocarbon and is preferably a hydrocarbon of from about 1 to about 40 carbon atoms.
- R' may more preferably be selected from about C 2 - C 12 and most preferably from C 4 - C 8; in such cases, R' is preferably a straight chain alkyl.
- R' may more preferably be selected from about C 20 - C 40 and most preferably from about C 28 - C 32; R' is preferably branched or alicyclic, for the more preferred about C 20 -C 40 and most preferred about C 28 - C 32.
- R' is ordinarily derived from a dicarboxylic acid reactant when the ketene multimer is prepared from reaction of a monoacid component with a diacid component.
- Ketene dimers and multimers and emulsions thereof which can be employed in the present invention include the PRECIS sizing agents commercially available from Hercules Incorporated, and which are disclosed in U.S. Patent 5,685,815, issued November 11, 1997 and EP 666,368, published August 9, 1995), the disclosure of which are hereby incorporated by reference as though set forth in full herein.
- U.S. Patent No. 5,725,731, issued March 10, 1998 which is hereby incorporated by reference as though set forth in full herein, discloses ketene dimers and multimers useful in the invention that are made from saturated and unsaturated fatty acids and emulsions thereof.
- Examples of preferred commercial AKD's include PRECIS 800 (for those compounds wherein R 1 and R 2 are primarily in the C16 range) (IUPAC name: 2- oxetanone,4-(8-heptadecenylidene),3-(7-hexadecenyl) CAS number 56000-16-9) (liquid at room temperature); AQUAPEL 364 (for those compounds wherein R 1 and R 2 are primarily in the C 16- 18 range) (IUPAC name: 2-oxetanone,3-(C 12-C 16)alkyl,4-(C 13-C17)alkylidene; CAS number 84989-41-3) (M.P. 40-47°C); AQUAPEL 291 (for those compounds wherein R 1 and R 2 are primarily in the C18 range) (IUPAC name: 2-oxetenone,3-(C14-C16)alkyl,4-
- Rosin sizes useful in the invention include dispersed rosin size stabilized by one or more cationic colloidal coacervate dispersing agents, such as ULTRAPHASE rosin sizing compositions disclosed in co-pending U.S. Patent Application No. 09/046,019 filed March 18, 1998, which is a continuation-in-part of 08/594,612, filed February 2, 1996 (and family member application PCT/US97/01274, filed January 29, 1997), the disclosures of which are hereby incorporated by reference as though set forth in full herein.
- the dispersed or emulsified hydrophobic rosin or AKD component is preferably stabilized with surfactants and with surfactant colloidal polymer systems. Examples of suitable stabilizing components are casein, water-soluble, nitrogen-containing cationic polymers and dispersing agents, anionic surfactants, starch and dispersing agent mixtures.
- the mixtures of size can be made by blending size dispersions before use or blending the rosin and AKD before dispersion.
- Suitable size dispersions can be readily formulated and prepared by those of ordinary in the art, based on the teachings of U.S. Patent No. 4,522,686, to DUMAS and U.S. Patent No. 4,816,073 to HELMER et al., incorporated by reference above, and U.S. Patent No.
- the amounts of rosin and AKD materials employed are as follows:
- the weight ratio of rosin to cellulose reactive product range from about 0.05 : 1 to about 20: 1 , and preferably from about 1 : 1 to about 10:1, more preferably from about 2 : 1 to about 8:1, and preferably from about 3: 1 to about 6:1.
- alum is also employed as part of the size mixture.
- Suitable alums are well-known to those of ordinary skill in the art, and include papermaker's alum, aluminum sulfate, Al 2 (SO 4 ) 3 , with various amounts of water of hydration.
- Other similar equivalent well-known aluminum compounds such as aluminum chloride, aluminum chlorohydrate, polyaluminum chlorides, and mixtures thereof, may also be used.
- the alums are employed in amounts and under conditions well-known to those of ordinary skill in the art.
- the alums are preferably employed in amounts such that the ratio of amount of size to alum, by weight is from about 1 :0.5 to about 1 :2.5.
- the process is conducted at a pH of from about 4-9 preferably from about 5 to about 9, more preferably from about 5 to about 8 and more preferably from about 6 to about 8.
- the pH is adjusted by variable addition of standard acids or bases to raise or lower the pH.
- sulfuric acid is advantageously employed to lower pH and alkaline materials, e.g., caustic soda, sodium bicarbonate, soda ash, sodium aluminate and the like, are employed to increase pH.
- additives are employed.
- Typical additives include alum used to reduce viscosity, defoamers, biocides and other preservatives, can be added to the rosin-coacervate dispersion of the present invention in amounts and using techniques known to those in the paper making industry.
- the sizes are used in dispersed and emulsified form in water. They are made by emulsification and stabilization of the sizes with mixtures of surfactant and colloidal polymer. While it is possible to make a blend of rosin and reactive size and stabilize the mixture as an emulsion with a combination of surfactant and colloidal polymer, this is not the preferred method.
- Premixing rosin and cellulose reactive size limits to some extent the flexibility with which formulations with different blend ratios of rosin and reactive size can be made and to some extent decreases the efficiency of the reactive size component, by exposing it to higher than normal temperatures during manufacture.
- the present invention is useful in commercial paper making processes.
- FIG. 1 A suitable process, designed to model hot stock sizing conditions of commercial paper machines, is schematically illustrated in Figure 1.
- the process of Figure 1 includes:
- Location C is the flow box, the point at which the paper making furnish flows at a controlled rate onto the fourdrinier wire.
- the HST test is a size test for paper by ink resistance, TAPPI Method T530PM/89, revised 1989. This test is also described in Pulp and Paper Chemistry and Chemical
- the Hercules Size Test determines the degree of water sizing obtained in paper by measuring the change in reflectance of the paper's surface as an aqueous solution of dye penetrates from the opposite surface side.
- the aqueous dye solution e.g., naphthol green dye in 1% formic acid in Examples 2 and 3 described below, is contained in a ring on the top surface of the paper, and the change in reflectance is measured photoelectrically from the bottom surface.
- Test duration is limited by choosing a convenient end point, e.g., a reduction in reflected light of 20%, corresponding to 80% reflectance, in Examples 2 and 3 described below.
- a timer measures the time (in seconds) for the end point of the test to be reached.
- Unsized paper will typically fail at 0 seconds, lightly sized paper will register times of from about 1 to about 20 seconds, moderately sized paper from about 21 to about 150 seconds, and hard sized paper from about 151 to about 2,000 seconds.
- Hi-pHase 35J a rosin size made and sold by Hercules® Inc was used to size paper at various addition levels at increasing temperatures stabilized and measured at positions A, B, C and D located on Fig 1.
- the degree of sizing was measured in a paper furnish consisting of a blend of unbleached kraft (UBK) 30 parts and waste test liner 70 parts. Temperatures of 40 and 60°C were maintained and the results are given in Table 1. Alum was added at equal parts dry basis to the size. Table 1
- Hi-pHase 35 J and Precis 8023 (a size formulated from the AKD Precis 800, described above), both available from Hercules UK , 31 London Rd., Reigate, Surrey, UK, RH2 9YA were blended together, as follows.
- Hi-pHase 35J 150.65 parts
- Precis 8023 100 parts
- This mixture designated Size A gave a product containing rosin (active ingredient) and AKD (active ingredient) 2 parts of rosin and 1 part of AKD, on a dry basis.
- Size A and Hi-pHase 35J were used to size a paper furnish consisting of UBK 30 parts and waste test liner 70 parts. Paper making was conducted at 40 and 60°C. The sizing efficiency results (HST seconds) are given in Table 2. The results show that the rosin size (Hi-phase 35J) loses efficiency at the higher temperature, whereas Size A gives superior sizing at both temperatures. The results also show that Size A was not significantly affected as the temperature was increased from 40 to 60°C. Table 2
- Sizes A, B (as described above), together with C and D were prepared from the following sizes, Ultraphase available from Hercules Inc. Wilmington, Delaware, USA, Precis 8023 and Hi-pHase 35 J both available from Hercules UK , 31 London Rd, Reigate, Surrey, UK, RH2 9YA.
- the composition of these sizes are given in Table 4 as parts by weight of as received material.
- These mixtures gave products containing rosin (active ingredient) and AKD (active ingredient), in the ratios 2 or 3 parts of rosin and 1 part of AKD, on a dry basis, as shown in the Table 4.
- the sizes were blended together, as follows. Ultraphase or Hi-pHase 35 J were charged to a vessel and stirred with a paddle stirrer, Precis 8023 was added and stirring was continued. The blended mixtures were used to size a paper furnish consisting of UBK 30 parts and waste test liner 70 parts. Paper making was conducted at 40 and 60°C. The sizing efficiency of Sizes A, B, C and D were compared with the efficiency of Hi-pHase 35J and Precis 8023. The results (Cobb gm/sq.m./60 sec) are given in Table 5.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL98340422A PL340422A1 (en) | 1997-11-05 | 1998-10-28 | Compositions for and methods of increasing effectiveness of hot paper internal sizing |
AU12775/99A AU1277599A (en) | 1997-11-05 | 1998-10-28 | Compositions and processes for increasing hot stock sizing effectiveness |
BR9813958-4A BR9813958A (en) | 1997-11-05 | 1998-10-28 | Compositions and processes to increase the gluing efficiency of hot material |
JP2000519153A JP2001522005A (en) | 1997-11-05 | 1998-10-28 | Compositions and methods for increasing sizing efficiency of warm materials |
CA002310572A CA2310572A1 (en) | 1997-11-05 | 1998-10-28 | Compositions and processes for increasing hot stock sizing effectiveness |
KR1020007004861A KR20010031794A (en) | 1997-11-05 | 1998-10-28 | Compositions and Processes for Increasing Hot Stock Sizing Effectiveness |
EP98956196A EP1029126A1 (en) | 1997-11-05 | 1998-10-28 | Compositions and processes for increasing hot stock sizing effectiveness |
NO20002345A NO20002345L (en) | 1997-11-05 | 2000-05-04 | Compositions and processes to Õ increase the efficiency of hot pulp paste |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/965,062 US20010009180A1 (en) | 1997-11-05 | 1997-11-05 | Compositions and processes for increasing hot stock sizing effectiveness |
US08/965,062 | 1997-11-05 |
Publications (1)
Publication Number | Publication Date |
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WO1999023307A1 true WO1999023307A1 (en) | 1999-05-14 |
Family
ID=25509380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/022635 WO1999023307A1 (en) | 1997-11-05 | 1998-10-28 | Compositions and processes for increasing hot stock sizing effectiveness |
Country Status (13)
Country | Link |
---|---|
US (1) | US20010009180A1 (en) |
EP (1) | EP1029126A1 (en) |
JP (1) | JP2001522005A (en) |
KR (1) | KR20010031794A (en) |
CN (1) | CN1285018A (en) |
AR (1) | AR016668A1 (en) |
AU (1) | AU1277599A (en) |
BR (1) | BR9813958A (en) |
CA (1) | CA2310572A1 (en) |
NO (1) | NO20002345L (en) |
PL (1) | PL340422A1 (en) |
WO (1) | WO1999023307A1 (en) |
ZA (1) | ZA9810135B (en) |
Cited By (7)
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CN106835851A (en) * | 2017-01-12 | 2017-06-13 | 江阴市森茂包装材料有限公司 | A kind of creped wrapping paper |
CN106835852A (en) * | 2017-01-25 | 2017-06-13 | 江阴市森茂包装材料有限公司 | A kind of water repellent creped wrapping paper |
CN107034736A (en) * | 2017-05-08 | 2017-08-11 | 无锡市锡佳印刷包装有限公司 | A kind of high gloss endures with all one's will wrapping paper |
CN107044070A (en) * | 2017-02-22 | 2017-08-15 | 镇江市天亿化工研究设计院有限公司 | A kind of AKD Cypres and preparation method thereof |
CN107130461A (en) * | 2017-05-05 | 2017-09-05 | 无锡市锡佳印刷包装有限公司 | Degradable stiffening wrapping paper |
CN107151947A (en) * | 2017-05-05 | 2017-09-12 | 无锡市锡佳印刷包装有限公司 | high gloss wrapping paper |
CN107190553A (en) * | 2017-04-28 | 2017-09-22 | 无锡市锡佳印刷包装有限公司 | Stiffening wrapping paper |
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FI117714B (en) * | 2001-04-10 | 2007-01-31 | Ciba Sc Holding Ag | Process for the sizing of liquid board, stock glue for use in liquid board manufacture, liquid packaging and use of glue |
FI20011455A (en) * | 2001-07-03 | 2003-01-04 | Metso Paper Inc | Process for making adhesive-coated paper or cardboard |
FI110443B (en) * | 2001-07-03 | 2003-01-31 | Metso Paper Inc | Method and apparatus for making adhesive-coated paper or cardboard |
SE0301329D0 (en) * | 2003-05-07 | 2003-05-07 | Bim Kemi Ab | A crepe facilitating composition |
US7799169B2 (en) | 2004-09-01 | 2010-09-21 | Georgia-Pacific Consumer Products Lp | Multi-ply paper product with moisture strike through resistance and method of making the same |
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FR2928383B1 (en) | 2008-03-06 | 2010-12-31 | Georgia Pacific France | WAFER SHEET COMPRISING A PLY IN WATER SOLUBLE MATERIAL AND METHOD FOR PRODUCING SUCH SHEET |
CN103103860B (en) * | 2013-03-01 | 2015-06-10 | 山东凯丽特种纸股份有限公司 | Imitated rice paper production method |
ES2928238T3 (en) * | 2018-01-04 | 2022-11-16 | Impetis Biosciences Ltd | Tricyclic compounds, compositions and medicinal applications thereof |
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EP0292975A1 (en) * | 1987-05-26 | 1988-11-30 | Hercules Incorporated | Sizing pulp |
WO1996035841A1 (en) * | 1995-05-12 | 1996-11-14 | Eka Chemicals Ab | Sizing dispersions |
EP0750069A1 (en) * | 1995-06-23 | 1996-12-27 | Chemische Fabrik Brühl Oppermann GmbH | Agents for sizing paper, paperboard and cardboard and their use |
-
1997
- 1997-11-05 US US08/965,062 patent/US20010009180A1/en not_active Abandoned
-
1998
- 1998-10-28 WO PCT/US1998/022635 patent/WO1999023307A1/en not_active Application Discontinuation
- 1998-10-28 CA CA002310572A patent/CA2310572A1/en not_active Abandoned
- 1998-10-28 EP EP98956196A patent/EP1029126A1/en not_active Withdrawn
- 1998-10-28 BR BR9813958-4A patent/BR9813958A/en not_active Application Discontinuation
- 1998-10-28 JP JP2000519153A patent/JP2001522005A/en active Pending
- 1998-10-28 AU AU12775/99A patent/AU1277599A/en not_active Abandoned
- 1998-10-28 CN CN98812948A patent/CN1285018A/en active Pending
- 1998-10-28 PL PL98340422A patent/PL340422A1/en unknown
- 1998-10-28 KR KR1020007004861A patent/KR20010031794A/en not_active Application Discontinuation
- 1998-11-05 AR ARP980105595A patent/AR016668A1/en unknown
- 1998-11-05 ZA ZA9810135A patent/ZA9810135B/en unknown
-
2000
- 2000-05-04 NO NO20002345A patent/NO20002345L/en not_active Application Discontinuation
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EP0292975A1 (en) * | 1987-05-26 | 1988-11-30 | Hercules Incorporated | Sizing pulp |
WO1996035841A1 (en) * | 1995-05-12 | 1996-11-14 | Eka Chemicals Ab | Sizing dispersions |
EP0750069A1 (en) * | 1995-06-23 | 1996-12-27 | Chemische Fabrik Brühl Oppermann GmbH | Agents for sizing paper, paperboard and cardboard and their use |
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JAYCOCK, M.: "Effect of Temperature on Wet-End Chemistry", WET-END CHEMISTRY CONFERENCE & COST WORKSHOP (PIRA INTERNATIONAL), SESSION: 1: 45, 47-66 (1997;PIRA INTERNATIONAL). [ENGL.], XP002096043 * |
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Also Published As
Publication number | Publication date |
---|---|
NO20002345L (en) | 2000-07-04 |
AR016668A1 (en) | 2001-07-25 |
EP1029126A1 (en) | 2000-08-23 |
KR20010031794A (en) | 2001-04-16 |
CA2310572A1 (en) | 1999-05-14 |
JP2001522005A (en) | 2001-11-13 |
CN1285018A (en) | 2001-02-21 |
NO20002345D0 (en) | 2000-05-04 |
ZA9810135B (en) | 1999-05-05 |
BR9813958A (en) | 2000-09-26 |
PL340422A1 (en) | 2001-02-12 |
US20010009180A1 (en) | 2001-07-26 |
AU1277599A (en) | 1999-05-24 |
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