| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 162168100 | Polymerized unsaturated compound | 56 |
| 20080271866 | Paper substrate containing a functional layer and methods of making and using the same - The invention relates to the papermaking art and, in particular, to the manufacture of paper or paperboard substrates, paper-containing articles such as multilayered paper or paperboard or corrugated-based packaging, having a functional layer, as well as methods of making and using the same. | 11-06-2008 |
| 20080302498 | Process for incorporating poorly substantive paper modifying agents into a paper sheet via wet end addition - Synthetic co-polymers having moieties capable of forming hydrogen bonds, ionic bonds, or covalent bonds with cellulose fibers and paper modifying moieties capable of modifying a paper sheet are disclosed. These synthetic co-polymers are derived from the reaction of an aldehyde functional polymer and an aldehyde reactive paper modifying agent containing a non-hydroxyl aldehyde reactive functional group. | 12-11-2008 |
| 20090025896 | Control of the Thikening of Silicate-Containing Aqueous Systems - A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of at least 3000 g/mol to at most 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and other ethylenically unsaturated comonomers, the polymerization for producing the copolymer being performed in the presence of from 0.01 to 100 mol % of at least one base, based on the total amount of all COOH groups of the monocarboxylic and dicarboxylic acids, the quantitative figures in % by weight being respectively based on the total amount of all monomers used. | 01-29-2009 |
| 20090056896 | AQUEOUS DISPERSION OF PRECIPITATED CALCIUM CARBONATE STARTING FROM AT LEAST ONE DISPERSING AGENT COMPRISING A COMPOUND CARRYING FLUORIDE IONS - The object of the invention is the use as a dispersing agent, with a view to dispersing mineral matter containing precipitated calcium carbonate (PCC) in water, of a combination:
| 03-05-2009 |
| 20090165977 | Paper Substrate containing a wetting agent and having improved print mottle - The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, enhanced print mottle, as well as print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substrate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition. | 07-02-2009 |
| 20090178773 | METHOD FOR PRODUCING AQUEOUS POLYMER DISPERSIONS CONTAINING AT LEAST ONE LIPOPHILIC ACTIVE SUBSTANCE AND THE USE THEREOF - A process for the preparation of aqueous polymer dispersions comprising at least one lipophilic active substance by emulsion polymerization of ethylenically unsaturated monomers in an aqueous medium in the presence of at least one lipophilic active substance, wherein
| 07-16-2009 |
| 20090250183 | PAPER COATING OR BINDING FORMULATIONS AND METHODS OF MAKING AND USING SAME - A paper coating or binding formulation comprises an aqueous polymer dispersion comprising a copolymer obtained by polymerization of an unsaturated monomer and a carbohydrate derived compound and a tetrasulfonate-based fluorescent whitening agent. The carbohydrate derived compound can be selected from the group consisting of dextrins, maltodextrins, and mixtures thereof. Methods of preparing a paper coating or binding formulation and improving the whitening properties of paper are also provided. Furthermore, paper including a copolymer obtained by polymerization of an unsaturated monomer and a carbohydrate derived compound and a tetrasulfonate-based fluorescent whitening agent is also disclosed. | 10-08-2009 |
| 20100147478 | COATING COMPOSITIONS COMPRISING ALKYL KETENE DIMERS AND ALKYL SUCCINIC ANHYDRIDES FOR USE IN PAPER MAKING - Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end. | 06-17-2010 |
| 20100170650 | Printability improving agents and papers coated with them - A printability improving agent for use in a neutral newsprint base paper which is printed with ecological inks, containing (I) a cationic copolymer obtained by polymerizing one or more hydrophobic monomer unit(s) selected from styrenes and alkyl acrylates and/or alkyl methacrylates with a quaternary ammonium salt-containing monomer unit, and (II) a copolymer obtained by polymerizing 100 parts by weight of one or more hydrophobic monomer(s) selected from the group above in the presence of 1-10 parts by weight of a surfactant. | 07-08-2010 |
| 20100181037 | AQUEOUS SLURRIES OF FINELY DIVIDED FILLERS, A PROCESS FOR THEIR PREPARATION AND THEIR USE FOR THE PRODUCTION OF PAPERS HAVING A HIGH FILLER CONTENT AND HIGH DRY STRENGTH - Aqueous slurries of finely divided fillers which are at least partly coated with a composition comprising at least one water-soluble amphoteric copolymer and at least one latex. | 07-22-2010 |
| 20100230062 | COATING COMPOSITION, A COATED ARTICLE, AND METHOD OF FORMING SUCH ARTICLES - The instant invention is a coating composition, a coated article, and method forming such coated articles. The coating composition comprises (a) a dispersion; and (b) a solution acrylic polymer, an emulsion polymer latex, or combinations thereof. The dispersion comprises at least one or more base polymers selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof; at least one or more stabilizing agents; and a fluid medium. A coated article comprises a substrate comprising cellulosic materials; and at least one or more coating layers present on at least one or more surfaces of the substrate. The one or more coating layers may be derived from a coating composition comprising (a) a dispersion; and (b) a solution acrylic polymer, an emulsion polymer latex, or combinations thereof. The dispersion comprises at least one or more base polymers selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof; at least one or more stabilizing agents; and a fluid medium. The method of forming a coated article comprises the steps of ( | 09-16-2010 |
| 20100307706 | REDUCED SHEAR CELLULOSE REACTIVE SIZING AGENT FOR WET END APPLICATIONS - The invention relates to a method for sizing a paper product that involves the steps of (a) providing a paper stock system; (b) forming, in the absence of high shearing forces, an aqueous sizing emulsion comprising an alkenylsuccinic anhydride component; (c) submitting the emulsion formed from step b to a post-dilution step in the presence of a cationic component under conditions, in the absence of high shearing forces, that produce a post-diluted emulsion having improved sizing efficacy; (d) adding the post-diluted emulsion to the paper stock; and (e) forming a paper web. | 12-09-2010 |
| 20110011547 | PAPER SUBSTRATE HAVING ENHANCED PRINT DENSITY - The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substrate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition. | 01-20-2011 |
| 20110024068 | Paper substrates useful in wallboard tape applications - A paper substrate, particularly useful in wallboard tape applications containing PVOH on and/or in at least one surface of the paper, as well as methods of making and using the same. The use of the tape of the invention is used in conjunction with a joint compound that may contain no or reduced amounts of bonding agent. | 02-03-2011 |
| 20110146927 | Method of making salt-sensitive binders and nonwoven webs - A solution with a salt-sensitive polymer binder for use in fibrous webs, where the binder contains a copolymer of carboxylic acid monomer units and ethylenically unsaturated monomer units. The binder solution is prepared by emulsion-polymerizing a copolymer and then neutralizing the copolymer with base to make it water soluble. The binders provide a higher wet strength in concentrated salt solutions than in deionized water, and are particularly suitable for strengthening nonwoven fibrous webs in disposable articles such as wet-wipes, personal care products, diapers, and the like. | 06-23-2011 |
| 20110146928 | PAPERS FOR LIQUID ELECTROPHOTOGRAPHIC PRINTING AND METHOD FOR MAKING SAME - The specification discloses papers suitable for liquid electrophotographic printing (“LEP”) and a method for making such papers. According to the method, a papermaking furnish containing cellulosic fibers is formed into a fibrous web on a papermaking machine and at least partially dried. The web is then treated with a sizing composition comprising starch, an acrylic acid polymer, an organic material having an HLB value of from about 2 to about 14 such as a polyglycerol ester, and water. The treated web is dried and calendered to a final desired caliper. Since the sizing composition is an aqueous mixture, it may be applied to the web on-line during production of the paper on the papermaking machine, thereby avoiding the expense and inconvenience of conventional off-line methods used to make existing LEP papers. The resulting paper exhibits at least 80% and preferably above 90% toner adhesion as measured by the tape pull tests used for the assessment of papers printed by LEP. | 06-23-2011 |
| 20110240241 | METHOD AND SYSTEM USING SURFACTANTS IN PAPER SIZING COMPOSITION TO INHIBIT DEPOSITION OF MULTIVALENT FATTY ACID SALTS - A method for inhibiting deposition of multivalent saturated fatty acids on paper sizing equipment and/or devices which use a paper surface sizing composition containing one or more surface sizing starches and a source of multivalent cations, such as a multivalent metal drying salt, by including a C | 10-06-2011 |
| 20120211189 | METHOD FOR MANUFACTURING RECYCLABLE MINERAL PAPER - A method is provided for manufacturing recyclable mineral paper, which has a composition comprising 60-85 wt % natural inorganic mineral powders, 5-40 wt % polypropylene (PP), and 1-5 wt % assisting agents, through the following steps: feeding and mixing of the constituents of the composition; | 08-23-2012 |
| 20130146242 | PAPER SUBSTRATES USEFUL IN WALLBOARD TAPE APPLICATIONS - A paper substrate, particularly useful in wallboard tape applications containing PVOH on and/or in at least one surface of the paper, as well as methods of making and using the same. The use of the tape of the invention is used in conjunction with a joint compound that may contain no or reduced amounts of bonding agent. | 06-13-2013 |
| 20140102652 | PAPER SUBSTRATES USEFUL IN WALLBOARD TAPE APPLICATIONS - A paper substrate, particularly useful in wallboard tape applications containing PVOH on and/or in at least one surface of the paper, as well as methods of making and using the same. The use of the tape of the invention is used in conjunction with a joint compound that may contain no or, reduced amounts of bonding agent. | 04-17-2014 |
| 20140374044 | BARRIER FILM WITH MOLECULAR EXPANSION UNDER STRAIN - A process for treating a solid substrate coupled to a polyol, wherein said polyol bears free hydroxyl groups, comprising the grafting of at least one fatty acid having an aliphatic chain comprising at least 12 carbon atoms onto said solid substrate coupled to a polyol by esterification of at least one free hydroxyl group of said polyol. | 12-25-2014 |
| 20150361618 | PAPER-STRENGTH AGENTS AND METHODS FOR IMPROVING PULP PRODUCTS - Paper strength agents comprising a vegetable protein or polysaccharide and a cross linker are disclosed. Methods of preparing such agents and using them to increase the strength of a pulp product are also disclosed. | 12-17-2015 |
| 20160194829 | PAPER PULPING PROCESS AND COMPOSITION | 07-07-2016 |
| 162168200 | Nitrogen containing compound | 24 |
| 20100236736 | FINE-PARTICLED POLYMER DISPERSIONS CONTAINING STARCH - Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion copolymerization of
| 09-23-2010 |
| 20140299286 | PAPER SUBSTRATES CONTAINING HIGH SURFACE SIZING AND LOW INTERNAL SIZING AND HAVING HIGH DIMENSIONAL STABILITY - This invention relates to a paper substrate containing high surface sizing and low internal sizing and having high dimensional stability, as well as methods of making and using the composition. | 10-09-2014 |
| 162168300 | Acrylamide containing | 20 |
| 20080308242 | High Solids Glyoxalated Polyacrylamide - Storage-stable glyoxalated polyacrylamide polymers and high solids aqueous compositions formulated with them are described. These glyoxalated polyacrylamide compositions can be used as additives for papermaking, providing paper with good dry and temporary wet strength, and increasing papermaking de-watering rates. | 12-18-2008 |
| 20090165978 | BLENDS OF GLYOXALATED POLYACRYLAMIDES AND PAPER STRENGTHENING AGENTS - Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent. The other component is a stabilized polyacrylamide prepared by (1) reacting a first portion of glyoxal with a polyacrylamide having pendant amide groups to form a first reaction mixture comprising polyacrylamide; (2) adding an acid to the first reaction mixture to form a second reaction mixture having a reduced pH and comprising the polyacrylamide; and (3) adding a second portion of glyoxal to the second reaction mixture to form the stabilized polyacrylamide. If desired, an aldehyde scavenger can be included in one or more of step (1), step (2), step (3), or the stabilized polyacrylamide. Such compositions can be used to enhance the strength of paper, particularly the wet strength of paper. | 07-02-2009 |
| 20110073265 | PROCESS CHEMICAL FOR USE IN THE PRODUCTION OF PAPER OR BOARD - The invention relates to a process for producing paper or board from an aqueous fibre suspension, which process includes the step of adding a process chemical to the aqueous fibre suspension, said process chemical being a polymer obtained by controlled radical polymerization technique from an ethylenically unsaturated monomer, a chain transfer agent, and an initiator in a liquid medium or by controlled photopolymerization technique from an ethylenically unsaturated monomer and a photoiniferter in a liquid medium. The process chemical improves the runnability and productivity of the paper or board machine. | 03-31-2011 |
| 20130139986 | Process For Manufacturing Paper And Board Having Improved Retention And Drainage Properties - A method for manufacturing a sheet of paper and/or board having improved retention and drainage properties is provided, according to which, before the formation of the sheet and/or board, at least two retention aids are added to the fibrous suspension. These two retention aids are a main retention aid corresponding to a (co)polymer having a cationic charge density above 2 meq/g, obtained by the Hofmann degradation reaction, and a secondary retention aid corresponding to a water-soluble or water-swellable polymer having an anionic charge density above 0.1 meq/g. The main retention aid is introduced into the fibrous suspension in a proportion of 100 to 800 g/t of dry pulp, and the secondary retention aid is introduced into the fibrous suspension in a proportion of 50 to 800 g/t of dry pulp and has an intrinsic viscosity IV above 3 dl/g. | 06-06-2013 |
| 20140124155 | MANUFACTURE OF PAPER AND PAPERBOARD - The process of the present invention concerns manufacturing paper and paperboard employing two polymeric retention aids. These two polymeric retention aids should be added to the low consistency suspension, often referred to as the thin stock. The first polymeric retention aid is a water-soluble cationic polymer exhibiting an intrinsic viscosity of at least 6 dl/g. The second polymeric retention aid is a water-soluble cationic polymer exhibiting an intrinsic viscosity of between 4 and 9 dl/g. The cationic charge density of the second polymeric retention aid should be higher than that of the first polymeric retention aid. The process is particularly suitable for the manufacture of fine paper or multiply packaging paper which often contains filler. | 05-08-2014 |
| 20140174683 | PROCESS FOR THE PRODUCTION OF PAPER - The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibres, (ii) adding to the suspension after the last point of high shear subsequent a centri-screen: (a) a first anionic component which is a water-soluble anionic anionic polysaccharide; (b) a second anionic component which is a water-dispersible or branched acrylamide-based polymer; and (c) a third anionic component which is an anionic siliceous material comprising an anionic silica-based polymer comprising anionic silica-based particles having a specific surface area within the range of from 100 to 1700 m2/g (iii) dewatering the obtained suspension to form paper. | 06-26-2014 |
| 20140216671 | MODIFIED FILLER COMPOSITION, PULP AND PAPER USING SAME - A modified filler composition used in papermaking is provided. The modified filler composition contains microfibrillated cellulose, and filler having negative charge, and a cationic polymer. | 08-07-2014 |
| 20140284011 | METHOD FOR INCREASING THE ADVANTAGES OF STRENGTH AIDS IN THE PRODUCTION OF PAPER AND PAPERBOARD - The invention relates to a method for manufacturing paper, paperboard or cardboard comprising the steps of
| 09-25-2014 |
| 20140318727 | PROCESS FOR THE PRODUCTION OF PAPER - The present invention relates to a process for producing paper which comprises:
| 10-30-2014 |
| 20140360691 | METHOD FOR PRODUCING PAPER, BOARD OR THE LIKE AND AGGLOMERATE - The invention relates to a method for producing paper, board or the like. In the method is obtained an aqueous filler dispersion, comprising particles of at least one first filler, the filler dispersion having a floc size distribution with original mean chord length value. The particles of the first mineral filler are brought into a contact with a cationic pre-treatment agent, which is capable of initiating flocculation of the filler particles in the dispersion, whereby a pre-treated filler dispersion comprising flocs, which comprise first mineral particles, is formed. The pre-treated filler dispersion is combined ed with a stock of fibres. The floc size distribution of the filler dispersion is changed with the pre-treatment agent, which is a natural and/or synthetic polymer, so that the mean chord length value increases at least with 2% from the original mean chord length value. The invention relates also to an agglomerate comprising at least one first mineral filler particle, a plurality of second mineral filler particles attached to at least one first filler particle by a pre-treatment agent, which is a natural and/or synthetic polymer. The average particle size by weight of the first mineral filler particles is 1.5-4.0 μm, the average particle size by weight of the second mineral filler particles is 0.5-2.4 μm, provided that the second mineral filler particles are smaller than the first mineral filler particles, and the mean chord length of the agglomerate is <40 μm. | 12-11-2014 |
| 20150041091 | USE OF NANOCRYSTALINE CELLULOSE AND POLYMER GRAFTED NANOCRYSTALINE CELLULOSE FOR INCREASING RETENTION, WET STRENGTH, AND DRY STRENGTH IN PAPERMAKING PROCESS - The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates. | 02-12-2015 |
| 20150053361 | NOVEL COMPLEXES OF WATER-SOLUBLE POLYMERS, AND USES THEREOF - Polymer complex obtained by polymerization of water-soluble monomers: in the presence of a host polymer comprising vinylamine functions and of a non-polymeric transfer agent, and in the absence of branching or crosslinking agent of ethylenic polyfunctional type. | 02-26-2015 |
| 20150096698 | TREATMENT OF CALCIUM CARBONATE CONTAINING MATERIALS FOR INCREASED FILLER LOAD IN PAPER - The present invention concerns a process for preparing self-binding pigment particles from an aqueous suspension of calcium carbonate containing material, wherein an anionic binder and at least one cationic polymer are mixed with the suspension. | 04-09-2015 |
| 20150299958 | HIGH STRENGTH PAPER - Disclosed herein are systems and methods for attaching particulate additives to a population of cellulose fibers dispersed in an aqueous solution. The cellulose fibers are treated with an activator that forms complexes with them. The particulate additive is attached to a tether that is capable of interacting with the activator, thereby forming a tether-bearing particulate additive. The tether-bearing particulate additive can be added to the activated suspension of cellulose fibers. The resulting interaction between the tether and the activator forms durable complexes that attach the particulate additive to the cellulose fibers. Using these systems and methods, useful additives like starches can be attached to cellulose fibers, imparting advantageous properties such as increased strength to paper products formed thereby. These systems and methods are particularly useful for papermaking involving virgin pulp fibers, recycled fibers, or any combination thereof. | 10-22-2015 |
| 20150299961 | MODIFIED VINYLAMINE CONTAINING POLYMERS AND THEIR USE IN PAPERMAKING - A graft copolymer composition of a vinyl monomer and a functionalized vinylamine-containing base polymer and a method of preparing the graft copolymer. It also relates to a paper product made using the composition as a papermaking additive. | 10-22-2015 |
| 20150345081 | PROCESS FOR THE MANUFACTURE OF PAPER AND PAPERBOARD - Process for the Manufacture of Paper and Paperboard The present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of from 0.5 and below 3 mEq per gram and a molar mass of greater than 700,000 Da, which cationic polymer is selected from polymers containing vinyl amine units and polyethylenimine, b) a cationic polymer having a charge density of below 3 mEq per gram and an intrinsic viscosity of at least 3 dl/g, wherein one of the components of the retention system is dosed into the thin stock after the final shearing stage and the other is dosed into the thin stock before the final shearing stage. | 12-03-2015 |
| 20160060813 | A METHOD OF PROVIDING FIBER WEB MAKING FURNISH WITH FILLER, AND PAPER OR PAPER BOARD - The present invention relates to a method of producing precipitated calcium carbonate (PCC) where a retention/strength enhancing chemical is added to milk of lime to form a mixture thereof prior to adding the mixture of the retention/strength enhancing chemical and milk of lime to paper making stock in a pipeline leading to a headbox of a paper making machine, whereafter carbon dioxide is introduced to the paper making stock, and the carbonation reaction between milk of lime and carbon dioxide is allowed to proceed in the presence of both fibres and the retention/strength enhancing chemical. | 03-03-2016 |
| 20170233949 | MODIFIED OF IMPROVING DRY STRENGTH AND/OR DRAINAGE OF A PAPER OR PAPERBOARD | 08-17-2017 |
| 162168400 | Heterocyclic N or S or epoxy component | 2 |
| 20140318728 | Copolymer Blend Compositions For Use To Increase Paper Filler Content - Disclosed are methods for increasing the filler content of paper or paperboard, comprising (a) combining a heterogeneous polymer blend with a ground calcium carbonate filler; (b) combining the resulting mixture with a pulp slurry; and (c) processing the resulting slurry mixture to form a sheet of paper or paperboard. Also disclosed are methods of increasing the filler content of paper or paperboard comprising (1) combining either a heterogeneous polymer blend or a ground calcium carbonate filler with a pulp slurry, (2) combining the remaining component with the pulp slurry; and (c) processing the resulting pulp slurry mixture to form a sheet of paper or paperboard. | 10-30-2014 |
| 20150041092 | METHOD FOR MAKING OF PAPER, TISSUE, BOARD OR THE LIKE - The invention relates to a method for making of paper, tissue, board or the like by using recycled fibre material as a raw material. The method comprises following steps: pulping recycled paper, board or the like in a pulper and obtaining a pulp flow comprising (i) an aqueous phase and (ii) at least recycled fibres and starch having low molecular weight, which are dispersed in the aqueous phase; adding a coagulant agent to the pulp flow or to an aqueous process flow comprising starch having low molecular weight; allowing the coagulant agent to interact with the starch having low molecular weight and optionally forming aggregates; and adding at least one flocculating agent, after the addition of the coagulant agent, to any flow, which comprises interacted coagulant agent, and forming a treated flow with starch comprising agglomerate(s); retaining at least part of the said aggregates and/or the said agglomerates to the fibres or to a web, which is formed. | 02-12-2015 |
| 162168500 | Heterocyclic N or S or epoxy component | 2 |
| 20140174684 | EXPANDABLE MICROSPHERES AND METHODS OF MAKING AND USING THE SAME - Expandable microspheres formed by suspension polymerization using a shot growth method are provided. The microspheres are formed of a continuous, gas impermeable shell surrounding a blowing agent. The shell includes a first polymer layer formed from primary monomers and a second layer that includes a chemically reactive monomer or a high Tg monomer. To form the microspheres, the primary monomers are polymerized in a reaction vessel to an approximate 90% polymerization, at which time a secondary monomer that is either a monomer having a Tg of at least 85° C. or a chemically reactive monomer, is added to the reaction vessel to drive the polymerization reaction to completion. The outer layer thus contains either a larger amount of the high Tg monomer or a chemically reactive monomer that possesses the ability to covalently bond a cationic species. The microspheres may be used in papermaking processes to increase the paper bulk. | 06-26-2014 |
| 20150096699 | WATER-RESISTANT/OIL-RESISTANT AGENT FOR PAPER - A water-resistant/oil-resistant agent for paper containing (I) a fluorine-containing copolymer including repeating units derived from: (a) a fluorine-containing monomer that has a fluoroalkyl group and that is represented by general formula (1): CH | 04-09-2015 |
| 162168600 | Hetero S or epoxy component | 1 |
| 20080230195 | Tissue products containing non-fibrous polymeric surface structures and a topically-applied softening composition - Soft tissue products with a good rate of absorbency, such as facial and bath tissue, are provided by forming a tissue sheet with a non-fibrous polymeric surface structure and thereafter topically applying a softening composition comprising a polysiloxane, a fatty alkyl derivative and glycerin. The non-fibrous polymeric surface structure is created by applying an additive composition to the surface of a tissue sheet prior to or after drying. The additive composition can be an aqueous dispersion containing an alpha-olefin polymer, an ethylene-carboxylic acid copolymer, or mixtures thereof. The alpha-olefin polymer may comprise an interpolymer of ethylene and octene, while the ethylene-carboxylic acid copolymer may comprise ethylene-acrylic acid copolymer. | 09-25-2008 |
| 162168700 | Ester type | 4 |
| 20120138248 | PAPER SUBSTRATE CONTAINING A WETTING AGENT AND HAVING IMPROVED PRINT MOTTLE - The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, enhanced print mottle, as well as print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substrate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition. | 06-07-2012 |
| 20140174685 | CELLULASE COMPOSITION CONTAINING CELLULASE AND PAPERMAKING POLYMERS FOR PAPER DRY STRENGTH APPLICATION - Disclosed herein are cellulase compositions useful as papermaking performance additives for improving paper dry strength of a paper product and reducing refining energy in papermaking processes, and improving paper production. These cellulase compositions are formulated using cellulase, papermaking contaminant control polymers, protein stabilizers and cellulase enhancers. These cellulase compositions measure higher in endo-cellulase activity with better stability than conventional cellulase, and have shown differentiating performance in improving paper dry strength properties versus cellulase alone. | 06-26-2014 |
| 20150027652 | Method for Reducing Negative Effects of Natural Pitch Contaminants in Both Pulping and Papermaking Operations - The instant invention relates to a method for inhibiting pitch deposition on pulping and papermaking equipment or machinery comprising adding to a pulp slurry containing pitch an effective amount of polymer dispersion comprising a component A and a component B, wherein component A being a homopolymer and/or copolymer of acrylic acid and/or its alkyl esters, or methacrylic acid and/or its alkyl esters, styrene and/or methylstyrene, vinyl acetate, itaconic acid, glycidyl methacrylate, 2-hydroxyalkyl (meth)acrylate, methacrylamide, N-hydroxyethyl(meth)acrylamide, dimethacrylate monomers, 1,3-butylene glycol dimethacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, propylene glycol dimethacrylate, dipropylene glycol dimethacrylate, 4-methyl-1,4-pentanediol dimethacrylate, divinylbenzene and/or trivinylbenzene, and component B being an aqueous solution of a styrene copolymer with acrylic acid, maleimide and/or maleic anhydride. | 01-29-2015 |
| 20150107793 | PROCESS FOR PREPARING PARTICLES WHICH HAVE A HYDROPHILIC CORE COATED WITH A HYDROPHOBIC POLYMERIC LAYER - This method of preparing particles having a hydrophilic core coated with a hydrophilic core coated with a hydrophobic polymeric layer includes the steps of: preparing an aqueous phase comprising at least one hydrophilic optical brightener or colorant; preparing an organic phase including at least one hydrophobic polymer; forming a water-in-oil inverse emulsion by adding the aqueous phase into the organic phase; forming the particles by thermal quenching of the emulsion; and isolating the particles thus obtained. | 04-23-2015 |
| 162169000 | From polyene compound | 4 |
| 20100181038 | PREPARATION OF AQUEOUS SLURRIES OF FINELY DIVIDED FILLERS AND THEIR USE FOR THE PRODUCTION OF PAPERS HAVING A HIGH FILLER CONTENT AND HIGH DRY STRENGTH - Process for treating aqueous slurries of finely divided fillers, an aqueous dispersion of at least one latex and an aqueous slurry of at least one starch being metered separately from one another into an aqueous slurry of at least one finely divided filler. | 07-22-2010 |
| 20100186915 | PREPARATION OF AQUEOUS SLURRIES OF FINELY DIVIDED FILLERS AND THEIR USE FOR THE PRODUCTION OF PAPERS HAVING A HIGH FILLER CONTENT AND HIGH DRY STRENGTH - A process for treating aqueous slurries of finely divided fillers, wherein the treatment is carried out by heating an aqueous slurry of at least one finely divided filler and then by adding an aqueous dispersion of at least one latex. | 07-29-2010 |
| 20120012264 | PRINT MEDIA FOR HIGH SPEED, DIGITAL INKJET PRINTING - Disclosed is a print medium for high speed, digital inkjet printing, which has high brightness and is resistant to yellowing. The print medium includes a base paper formed from a fiber furnish containing at least 30% by weight of mechanical pulp, and a coating layer formed on at least one surface of the base paper. The coating layer contains a metallic salt, a combination of two different binders at a predetermined ratio, and at least one inorganic pigment. A method of making the print medium is also disclosed. | 01-19-2012 |
| 20140216672 | MODIFIED FILLER COMPOSITION AND PAPERMAKING PROCESS USING THE SAME - A modified filler composition used in papermaking is provided. The modified filler composition contains microfibrillated cellulose, filler, and latex having a glass transition temperature of less than 20° C. The dry weight of the microfibrillated cellulose is about 0.1% to about 10% that of the filler; the dry weight of the latex is about 0.1% to about 15% that of the filler. | 08-07-2014 |
