Silicon Containing Patents (Class 162/164.4)
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Patent number: 11066522Abstract: An amphiphilic polymer, an amphiphilic polymer manufacturing method, a contact lens material including the amphiphilic polymer, and contact lens manufacturing method are provided. The amphiphilic polymer includes poly(dimethylsiloxane) and amphiphilic chitosan bonded to the same. The contact lens material includes the amphiphilic polymer. The amphiphilic polymer manufacturing method includes providing a poly(dimethylsiloxane), providing an amphiphilic chitosan, and bonding the amphiphilic chitosan to the poly(dimethylsiloxane).Type: GrantFiled: January 30, 2019Date of Patent: July 20, 2021Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Yun-Ru Hsieh, Dean-Mo Liu, Yu-Cheng Jian, Wei-Ting Huang
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Patent number: 10005873Abstract: New polyvinylamide and/or acryl acid-based copolymers. The new structured block copolymers are based on the block copolymerization of N-vinyl formamide (NVF) with other monomers by using a bifunctional initiator. Further, a method of preparing the structured block copolymer is provided, and especially a method wherein the NVF-based block is at least partially hydrolyzed to obtain PVAm. Also the use of the new structured block copolymers in sludge dewatering and in papermaking processes is disclosed.Type: GrantFiled: February 27, 2015Date of Patent: June 26, 2018Assignee: KEMIRA OYJInventors: Sacha Legrand, Marco Polverari, Rosa Carceller
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Publication number: 20150017224Abstract: The following steps are provided for producing a sheet cellulose material, for instance a handkerchief, comprising at least one adjuvant substance for the treatment of allergic rhinitis: generating an aqueous nano- or micro-emulsion containing nano- or micro-droplet of said at least one substance encapsulated in a protective layer comprising a non-ionic surface-active agent; applying the nano- or micro-emulsion to the cellulose material; evaporating water, leading to the formation of nano- or micro-capsules anchored to the cellulose fibers.Type: ApplicationFiled: July 9, 2014Publication date: January 15, 2015Inventor: Emi STEFANI
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Publication number: 20140096926Abstract: A method for making fibrous structures. The method includes the steps of: (a) providing a fibrous furnish comprising papermaking fibers, the fibrous furnish containing, in addition to water and cellulosic fibers, from about 0.1% to about 15% waterborne shape memory polymer; (b) depositing the fibrous furnish onto a foraminous member such that an embryonic fibrous web is formed; (c) associating the embryonic web with a molding member comprising discrete deflection cells or substantially continuous deflection conduits; (d) deflecting the fibers in the embryonic fibrous web into the discrete deflection cells or substantially continuous deflection conduit and removing water from the embryonic web through the discrete deflection cells or substantially continuous deflection conduit so as to form an intermediate fibrous web; (e) optionally, drying the intermediate fibrous web; and (f) optionally, foreshortening the intermediate fibrous web.Type: ApplicationFiled: October 5, 2012Publication date: April 10, 2014Inventors: Ward William OSTENDORF, Patrick Thomas MATHER, Pamela Tiffany WILSON, Kazuki ISHIDA
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Patent number: 8673117Abstract: A degrading agent composition for use in manufacturing a tissue product generally includes a degrading agent, a degradation inhibiting carrier, and a non-ionic surfactant. The non-ionic surfactant stabilizes the viscosity of the composition as a function of time. The degrading agent composition can be used in combination with a temporary wet strength agent to produce a tissue product exhibiting high initial wet tensile strength and desirable decay properties. Processes for forming the tissue product and pumpable fluids containing the degrading agent composition are also disclosed.Type: GrantFiled: September 30, 2010Date of Patent: March 18, 2014Assignee: Kemira OyjInventors: Scott Rosencrance, Yuping Luo, Vladimir Grigoriev
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Publication number: 20130277002Abstract: The present invention relates to a process for producing paper which comprises: (vii) providing an aqueous suspension comprising cellulosic fibres, (viii) adding to the suspension after all points of high shear a first polymer being a cationic polymer having a charge density above 2.5 meq/g; a second polymer, and a third polymer being an organic or inorganic anionic polymer; and (ix) dewatering the obtained suspension to form paper.Type: ApplicationFiled: October 10, 2012Publication date: October 24, 2013Inventor: AKZO NOBEL N.V.
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Patent number: 8563640Abstract: Efficient deaeration of aqueous suspensions such as those obtained during textile treatment or pulp and paper production is achieved by use of a combination of a polyoxypropylene polyether polymer or copolymer and branched polyether-polysiloxane copolymers.Type: GrantFiled: February 21, 2011Date of Patent: October 22, 2013Assignee: Wacker Chemie AGInventors: Willibald Burger, Ludwig Esterbauer, Holger Rautschek
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Publication number: 20130269894Abstract: The present invention relates to a process for producing paper which comprises: providing an aqueous suspension comprising cellulosic fibres, adding to the suspension, after all points of high shear, a cationic polysaccharide; an inorganic polymer P1 being a cationic polyaluminium compound; and a polymer P2 being an anionic polymer; and, dewatering the obtained suspension to form paper.Type: ApplicationFiled: September 6, 2012Publication date: October 17, 2013Applicant: AKZO NOBEL N.V.Inventors: Fredrik Solhage, Joakim Carlén, Birgitta Johansson
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Patent number: 8440768Abstract: Low amidine content poly(N-vinylformamide-co-vinylamine) (PVAm), is described, as well as processes of making and providing same in fresh or aged formats, and the usage of such polymer to increase papermaking retention and drainage rate and enhance paper dry strength, and other applications.Type: GrantFiled: June 18, 2009Date of Patent: May 14, 2013Assignee: Buckman Laboratories International, Inc.Inventors: Chen Lu, Jian Tan
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Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio
Patent number: 8425724Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.Type: GrantFiled: October 18, 2011Date of Patent: April 23, 2013Assignee: Kemira OyjInventors: Michael Ryan, William Brevard -
Patent number: 8317976Abstract: The specification discloses a method for making a paper material having a reduced tendency to cut human skin. The method includes providing a papermaking furnish containing cellulosic fibers and from about 0.5 to about 5.0 wt % by weight dry basis expandable microspheres, forming a paperboard web from the papermaking furnish, drying the web, and calendaring the web to a caliper of from about 11.0 to about 18.0 mils and a density ranging from about 7.0 to about 12.0 lb/3000 ft2/mil. Papers formed according to the method and articles formed therefrom are also disclosed.Type: GrantFiled: August 19, 2010Date of Patent: November 27, 2012Assignee: International Paper CompanyInventors: Richard C. Williams, Peter M. Froass, David A. Boone, Richard D. Faber
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Publication number: 20120285643Abstract: An acoustic building material and method for manufacture incorporates a homogenously dispersed reactive silicone to improve water repellency and physical properties.Type: ApplicationFiled: May 14, 2011Publication date: November 15, 2012Applicant: USG INTERIORS, INC.Inventor: Qing Claire Yu
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Patent number: 8221587Abstract: The invention consists in the use, in a method for manufacturing a sheet of paper, of an aqueous suspension and/or dispersion of mineral materials as an agent for slowing the penetration of the paper coating into said sheet, characterized in that said suspension and/or dispersion contains at least one water-soluble copolymer made up of at least one ethylenically-unsaturated anionic monomer, and at least one ethylenically-unsaturated oxylalkylated monomer terminated by a hydrophobic chain. It also consists in a method for manufacturing a sheet of paper which implements said copolymer, as well as the sheet of paper obtained.Type: GrantFiled: October 3, 2007Date of Patent: July 17, 2012Assignee: Coatex S.A.S.Inventors: Jacques Mongoin, Francois Dupont, Hubert Parant, Jean-Marc Suau
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Patent number: 8123906Abstract: Compositions and methods of producing paper-based materials are disclosed. In general, the techniques utilize an amine-containing polymer, such as chitosan, to functionalize one or more components of a mixture used to form materials such as paper-based materials. Such components can include the fibers of a pulp and/or filler particles. In one instance, either the pulp or the filler particles are functionalized, but not both. Such functionalization can improve the qualifies of a paper-based material relative to when such functionalization is not utilized. Techniques and compositions are also described to further improve the qualities of a paper material by utilizing a complementary polymer which can couple with the amine-containing polymer.Type: GrantFiled: August 1, 2008Date of Patent: February 28, 2012Assignee: NanoPaper, LLCInventors: David S. Soane, Michael C. Berg, William A. Mowers
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Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio
Patent number: 8070914Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 o to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.Type: GrantFiled: April 9, 2010Date of Patent: December 6, 2011Assignee: Kemira OyjInventors: Michael Ryan, William Brevard -
Patent number: 8066903Abstract: A method for preparing a cellulose carbamate solution. Dissolving is performed in two steps, first by moistening cellulose carbamate pulp with a dilute alkaline solution and second by admixing a concentrated alkaline solution, as cold as possible, to the pulp under intensive stirring. The technique utilizes the low freezing point of the aqueous NaOH solution at the concentration of 18%, wherein the freezing point is below ?20° C., and the intensive stirring function of the dissolve mixer device during the dosage. It is possible to prepare solutions of high quality and having high dry matter content in a mixing time of a few minutes only.Type: GrantFiled: November 23, 2006Date of Patent: November 29, 2011Assignee: Valtion Teknillinen TutkimuskeskusInventors: Kyösti Valta, Eino Sivonen, Tero Malm
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Publication number: 20110253332Abstract: Fibrous structures comprising an additive, more particularly finished fibrous structures comprising a low surface energy solid additive, and/or sanitary tissue products comprising such finished fibrous structures, are provided.Type: ApplicationFiled: May 24, 2011Publication date: October 20, 2011Inventors: Kenneth Douglas Vinson, Michael Scott Prodoehl
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Publication number: 20110247773Abstract: 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 all points of high shear: a first polymer being a cationic polymer having a charge density above 2.5 meq/g; a second polymer; and a third polymer being an organic or inorganic anionic polymer; and (iii) dewatering the obtained suspension to form paper.Type: ApplicationFiled: May 3, 2011Publication date: October 13, 2011Applicant: AKZO NOBEL N.V.Inventors: Fredrik Solhage, Joakim Carlén, Birgitta Johansson
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Patent number: 8022156Abstract: A greaseproof paper is provided for use in food processing and/or packaging of foods in which paper has been rendered oleophobic by treatment with a fluorine-containing polymer. The fluorine-containing polymer may be prepared by polymerizing a fluorine-containing monomer in the presence of a mercapto group-containing organopolysiloxane. The fluorine-containing polymer may be applied to paper by coating onto pre-formed paper, or by applying the polymer as a size during a papermaking process.Type: GrantFiled: July 24, 2007Date of Patent: September 20, 2011Assignees: Dow Corning Corporation, Daikin Industries, Ltd.Inventors: Peter Cheshire Hupfield, Tetsuya Masutani, Shinichi Minami, Ikuo Yamamoto
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Patent number: 8007638Abstract: A method of manufacturing a cellulosic sheet having at least one of hydrophobic and oleophobic properties comprises the steps of depositing a stock of cellulosic fibers onto at least one forming fabric at an impingement zone and forming a web therefrom in a formation process; combining a water-based composition comprising an adhesion promoter, an organic nanoparticulate polymer and a fluorocarbon with the web at a preselected combination stage prior to a heating stage at which the web is subjected to a temperature exceeding 60° C.; and heat-curing the composition with the web during a drying process. A water-based composition for imparting at least one of hydrophobic and oleophobic properties to a cellulosic sheet during manufacture comprises an adhesion promoter, an organic nanoparticulate polymer and a fluorocarbon. A cellulosic sheet or layer thereof has at least one of hydrophobic and oleophobic properties. Improved resistance of cellulosic sheets to oil or water is obtained.Type: GrantFiled: July 4, 2006Date of Patent: August 30, 2011Assignee: AstenJohnson, Inc.Inventors: Samuel Baker, Jackson Graham, Dietmar Wirtz
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Patent number: 8002949Abstract: A composition for cellulostic fibers containing amino silicone to impart improved hand feel. The composition may be included in a lotion applied to tissue paper and may include a hydrophilic softener. A carrier for trace substances, fragrances, vitamin E, aloes and colouring agents may also be used. Such carrier may comprise microcapsules.Type: GrantFiled: October 6, 2009Date of Patent: August 23, 2011Assignee: Kruger Products L.P.Inventors: Philip Buder, Vincent Denis Landry, Charles William Alexander Stewart, Jose Enrique Castell Perez, Richard Hector Gendron, Marc Joseph Gilles Desaulniers
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Patent number: 7964062Abstract: A paper treating agent comprising 100 parts by mass of organopolysiloxane (A), from 100 to 100,000 parts by mass of water (E), and 0.1 to 100 parts by mass of a surfactant (F), characterized in that the agent further comprises 50 to 1,000 parts by mass of a cellulosic resin (C), wherein 0.5 to 2.5 hydroxyl groups per glucose unit of said cellulosic resin are etherized or esterified, and a viscosity of an aqueous 2% solution of said cellulosic resin is from 2 to 100 mPa·s.Type: GrantFiled: October 21, 2005Date of Patent: June 21, 2011Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kenji Yamamoto, Masahiko Ogawa
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Patent number: 7893115Abstract: An oil-in-water emulsion useful as a defoamer for pulp and paper mill applications is described. The defoamer has an oil blend (of a triglyceride oil or a mixture of triglyceride oils and silicone), a stabilizing agent (to make the oil blend stable in the emulsion), hydrophobic silica particles, surfactants, dispersants, and other components. The emulsion is usable directly at low concentrations to control foam.Type: GrantFiled: December 8, 2005Date of Patent: February 22, 2011Assignee: Hercules IncorporatedInventors: Huai N. Cheng, Eric O. Fernandez, John M. Sheepy
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Patent number: 7879917Abstract: A defoamer made from a composition that has at least one triglyceride oil or triglyceride oil mixture, at least one silicone, at least one silicone-triglyceride stabilizing agent, hydrophobic silica particles, optionally one or more surfactants and/or dispersants, and optionally one or more thickeners, and optionally one or more biocides. The defoamers described herein have utility in controlling foam in industrial applications. Typically, the defoamer can be used to control foam in pulp and paper applications.Type: GrantFiled: December 8, 2005Date of Patent: February 1, 2011Assignee: Hercules IncorporatedInventors: Huai N. Cheng, Eric Oswaldo Fernandez, John M. Sheepy
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Publication number: 20100243187Abstract: Pulp fibers can be treated with chemical additives with a minimal amount of unretained chemical additives present later in the process water. The present invention is a method for preparing chemically treated pulp fiber. A fiber slurry is created comprising process water and pulp fibers. The fiber slurry is transported to a web-forming apparatus of a pulp sheet machine thereby forming a wet fibrous web. The wet fibrous web is dried to a predetermined consistency thereby forming a dried fibrous web. The dried fibrous web is treated with a chemical additive thereby forming a chemically treated dried fibrous web. The dried fibrous web contains chemically treated pulp fibers. The chemically treated pulp fibers retain from between about 10 to about 100 percent of the applied amount of the chemical additive when the chemically treated pulp fibers are redispersed in water.Type: ApplicationFiled: June 9, 2010Publication date: September 30, 2010Inventors: Troy Michael Runge, Louise Cynthia Ellis Coe, Mike Thomas Goulet, Ricardo Toru Nishihata, Vera Maria Sacon
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Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio
Patent number: 7736465Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.Type: GrantFiled: February 6, 2004Date of Patent: June 15, 2010Assignee: Kemira OyjInventors: Michael Ryan, William Brevard -
Patent number: 7708862Abstract: Use of silica sols containing sulfonic acid groups and/or mercapto groups as microparticles in paper production, in particular for paper retention.Type: GrantFiled: June 30, 2004Date of Patent: May 4, 2010Assignee: Kemira OyjInventors: Karlheinrich Meisel, Bernd Thiele, Gerd-Friedrich Renner, Johan Kijlstra, Arno Nennemann, Thomas Hübbe, Lothar Puppe
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Publication number: 20100089540Abstract: A composition for cellulostic fibers containing amino silicone to impart improved hand feel. The composition may be included in a lotion applied to tissue paper and may include a hydrophilic softener. A carrier for trace substances, fragrances, vitamin E, aloes and colouring agents may also be used. Such carrier may comprise microcapsules.Type: ApplicationFiled: October 6, 2009Publication date: April 15, 2010Inventors: Philip Buder, Vincent Denis Landry, Charles William Alexander Stewart, Jose Enrique Castell Perez, Richard Hector Gendron, Marc Joseph Gilles Desaulniers
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Patent number: 7670459Abstract: Fibrous products containing a durable softening agent are disclosed. The softening agent generally comprises a polysiloxane containing a plurality of first functional groups. In order to improve the wet retention of the softening agent on cellulosic fibers, the softening agent is reacted with a retention agent. The retention agent generally comprises a cationic polymer having a second functional group. In one embodiment, for instance, the softening agent contains epoxy groups or anhydride groups, while the retention agent contains amine groups. Products that may be made according to the present invention include tissue products, wipes and other absorbent articles.Type: GrantFiled: December 29, 2004Date of Patent: March 2, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Gil Bernard Didier Garnier, Michael Ralph Lostocco, Troy Michael Runge, Thomas Hampshire Schulz
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Patent number: 7666272Abstract: This invention relates to a process for preparing sized paper and paperboard which incorporates in the paper and paperboard at the size press size a composition comprising one or more “hydrophobic polymers” wherein hydrophobic polymers, the amount of such polymers and the weight ratio of starch to such polymer in the composition are selected such that the paper and paper board exhibits a Cobb Value equal to or less than about 25 and to a sized paper or paperboard web formed by the process.Type: GrantFiled: September 27, 2007Date of Patent: February 23, 2010Assignee: International Paper CompanyInventors: Richard C Williams, Peter M Froass, Sandeep Kulkarni
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Publication number: 20100038046Abstract: The invention consists in the use, in a method for manufacturing a sheet of paper, of an aqueous suspension and/or dispersion of mineral materials as an agent for slowing the penetration of the paper coating into said sheet, characterized in that said suspension and/or dispersion contains at least one water-soluble copolymer made up of at least one ethylenically-unsaturated anionic monomer, and at least one ethylenically-unsaturated oxylalkylated monomer terminated by a hydrophobic chain. It also consists in a method for manufacturing a sheet of paper which implements said copolymer, as well as the sheet of paper obtained.Type: ApplicationFiled: October 3, 2007Publication date: February 18, 2010Applicant: COATEX S.A.S.Inventors: Jacques Mongoin, Francois Dupont, Hubert Parant, Jean-Marc Suau
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Publication number: 20100018659Abstract: A greaseproof paper is provided for use in food processing and/or packaging of foods in which paper has been rendered oleophobic by treatment with a fluorine-containing polymer. The fluorine-containing polymer may be prepared by polymerizing a fluorine-containing monomer in the presence of a mercapto group-containing organopolysiloxane. The fluorine-containing polymer may be applied to paper by coating onto pre-formed paper, or by applying the polymer as a size during a papermaking process.Type: ApplicationFiled: July 24, 2007Publication date: January 28, 2010Applicants: DOW CORNING CORPORATION, DAIKIN INDUSTRIES, LTD.Inventors: Peter Cheshire Hupfield, Tetsuya Masutani, Shinichi Minami, Ikuo Yamamoto
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Patent number: 7645360Abstract: Defoamer compositions of high effectiveness containing at least one siloxane-based antifoam and polysiloxane copolymers obtained by coupling a polysiloxane bearing active-hydrogen-containing hydrophilic polymer moieties by means of a di- or polyisocyanate.Type: GrantFiled: May 24, 2006Date of Patent: January 12, 2010Assignee: Wacker Chemie AGInventors: Willibald Burger, Christian Herzig, Josef Wimmer
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Patent number: 7625462Abstract: Polymeric bonding agents having a “triggerable” bonding functionality and which are in the form of particles or fibers, are blended with papermaking fibers prior to formation of a tissue web. After the web is dewatered, and advantageously during or after drying, the triggerable bonding functionality is activated to strengthen the resulting sheet structure. Tissue sheets prepared in this manner can exhibit an improved combination of softness, bulk and strength.Type: GrantFiled: April 20, 2006Date of Patent: December 1, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Kou-Chang Liu
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Publication number: 20090272505Abstract: Process for finishing paper and paper products by treating the surface of paper or paper products with at least one finishing agent, at least one finishing agent being applied in the form of a pattern on the top and/or bottom of paper or paper products, and the papers and paper products obtainable by the process.Type: ApplicationFiled: June 20, 2007Publication date: November 5, 2009Applicant: BASF SEInventors: Simon Champ, Roland Ettl
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Publication number: 20090260769Abstract: Cellulosic substrates are treated with compound(s) containing at least two primary amino groups and compounds containing at least one ?-ketocarbonyl group. The substrates exhibit good strength and hand properties.Type: ApplicationFiled: August 6, 2007Publication date: October 22, 2009Applicant: WACKER CHEMIE AGInventors: Christian Herzig, Willibald Burger, Monika Rappl
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Patent number: 7597780Abstract: A composition for cellulostic fibers containing amino silicone to impart improved hand feel. The composition may be included in a lotion applied to tissue paper and may include a hydrophilic softener. A carrier for trace substances, fragrances, vitamin E, aloes and coloring agents may also be used. Such carrier may comprise microcapsules.Type: GrantFiled: April 8, 2002Date of Patent: October 6, 2009Inventors: Philip Buder, Vincent Landry, Charles William Alexander Stewart, Jose Enrique Castell Perez, Richard Hector Gendron, Marc Joseph Gilles Desaulniers
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Publication number: 20090120596Abstract: Paper is made from paper stock containing pulp derived from recycled paper fibers by adding to the paper stock, an effective amount of an additive for reducing the deposition of contaminants, the additive one or more silicon containing material(s) selected from the group of: (i) an epoxy and/or glycidoxy functional silane, and/or hydrolysed or condensation reaction products thereof with water (ii) glycidoxy and/or epoxy functional siloxane and/or hydrolysed or condensation reaction products thereof with water (iii) a quaternary ammonium functional silicone polymer, and/or hydrolysed or condensed reaction products thereof with water and/or (iv) a quaternary ammonium functional silicone polymer cross-linked by an organic epoxide and/or hydrolysed or condensed reaction products thereof with water and/or (v) an amino functional silane and/or an amino functional silicone and/or hydrolysed or condensed reaction products thereof with water and/or (vi) an alkyl functional silane and/or hydrolysed or condensed reactiType: ApplicationFiled: April 20, 2006Publication date: May 14, 2009Inventors: John G. Francis, Donna M. Perry, Frances M. Fournier, Francois De Buyl, Elizabeth Van Den Berg
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Publication number: 20090084514Abstract: A gypsum board which comprises a set gypsum core sandwiched between and faced with fibrous mats, wherein a free surface of one of said mats is pre-coated with a combination of a mineral pigment, optionally an inorganic adhesive binder and an organic binder, preferably a hydrophobic, UV resistant polymer latex adhesive binder applied to said surface as an aqueous coating composition, said aqueous coating composition upon drying and setting providing a pre-coated mat satisfying certain morphology requirements.Type: ApplicationFiled: September 30, 2008Publication date: April 2, 2009Inventors: Russell SMITH, Brian RANDALL
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Patent number: 7413631Abstract: An agent for enhancing brightness and opaqueness in paperboard comprises a reaction product selected from the groups consisting of: A) an amide reaction product of a C12-C22 fatty acid, condensed with an amine selected from monoalkanol amines, dialkanol amines or diethylene triamine or a mixture thereof. B) an amide reaction product of a triglyceride of a C12-C22 fatty acid condensed with an amine selected from monoalkanol amine, dialkanol amine, or diethylene triamine or a mixture thereof. C) an amide reaction product of an ester of a C12-C22 fatty acid condensed with an amine selected from monoalkanol lower alkyl amine, dialkanol amine, diethylene triamine or a mixture thereof; and D) an ester reaction of a C12-C22 fatty acid condensed with an alcohol selected from glycerine, ethylene glycol or propylene glycol.Type: GrantFiled: May 19, 2005Date of Patent: August 19, 2008Assignee: Tri-Tex Co. Inc.Inventors: Yassin Elgarhy, Gaston Caron, Alexandre de Laryssa
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Publication number: 20080190574Abstract: A method of manufacturing a cellulosic sheet having at least one of hydrophobic and oleophobic properties comprises the steps of depositing a stock of cellulosic fibres onto at least one forming fabric at an impingement zone and forming a web therefrom in a formation process; combining a water-based composition comprising an adhesion promoter, an organic nanoparticulate polymer and a fluorocarbon with the web at a preselected combination stage prior to a heating stage at which the web is subjected to a temperature exceeding 60° C.; and heat-curing the composition with the web during a drying process. A water-based composition for imparting at least one of hydrophobic and oleophobic properties to a cellulosic sheet during manufacture comprises an adhesion promoter, an organic nanoparticulate polymer and a fluorocarbon. A cellulosic sheet or layer thereof has at least one of hydrophobic and oleophobic properties. Improved resistance of cellulosic sheets to oil or water is obtained.Type: ApplicationFiled: July 4, 2006Publication date: August 14, 2008Applicant: ASTENJOHNSON, INC.Inventors: Samuel Baker, Graham Jackson, Dietmar Wirtz
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Patent number: 7186318Abstract: The present invention is a polysiloxane treated hydrophilic tissue sheet having a polydialkylsiloxane content of about 0.4% or greater by weight of dry pulp fibers. The polysiloxane treated hydrophilic tissue sheet may also have a wet out time after aging 20 days at about 130° F. of about 10 seconds or less.Type: GrantFiled: December 19, 2003Date of Patent: March 6, 2007Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Kou-Chang Liu, Amber Marie Fortune, Thomas Gerard Shannon
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Patent number: 7165553Abstract: A smoking article composition and a method of making a smoking article composition comprising tobacco cut filler, cigarette paper and/or cigarette filter material further comprising a catalyst capable of converting carbon monoxide to carbon dioxide, wherein the catalyst comprises nanoscale catalyst particles dispersed within a porous aluminosilicate matrix. The catalyst can be formed by combining nanoscale catalyst particles or a metal precursor solution thereof with an alumina-silica sol mixture to form a slurry, gelling the slurry to form the co-gel, heating the co-gel to form a catalyst comprising nanoscale catalyst particles dispersed within a porous aluminosilicate matrix. The catalyst can be incorporated in tobacco cut filler, cigarette paper and/or cigarette filter material by spraying, dusting and/or immersion.Type: GrantFiled: June 13, 2003Date of Patent: January 23, 2007Assignee: Philip Morris USA Inc.Inventors: Zhaohua Luan, Jay A Fournier, Sarojini Deevi, Ila Skinner, Kent B. Koller, Diane L. Gee
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Patent number: 7147752Abstract: The present invention is polysiloxane pretreated pulp fibers comprising pulp fibers, and a polysiloxane. The polysiloxane pretreated pulp fibers have a polysiloxane content of about 0.4 percent or greater by weight of dry pulp fibers, a silicone retention factor of about 0.6 or greater, and an initial water drop absorption value of about 180 seconds or less.Type: GrantFiled: December 19, 2003Date of Patent: December 12, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Thomas Gerard Shannon, Dale Alan Burghardt, Lisa Ann Flugge, David Andrew Moline
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Patent number: 7056460Abstract: A process for making an improved gypsum/wood fiber board is described. Products resulting from the process are also described. The process comprises adding a diisocyanate, specifically methylenediphenyldiisocyanate (MDI) to an aqueous slurry of calcium sulfate material and cellulosic fibers, where the MDI is added as an emulsion stable in the conditions in which the slurry is maintained. The process further includes passing the MDI containing slurry onto a flat porous forming surface to form a filter cake; removing a substantial portion of the water from the filter cake through the porous surface; pressing the filter cake to form a board and remove additional water; and drying the board to remove the remaining free water.Type: GrantFiled: January 14, 2003Date of Patent: June 6, 2006Assignee: United States Gypsum CompanyInventor: Mark Englert
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Patent number: 7029756Abstract: The present invention is a tissue product having two outer surfaces and at least one layered tissue sheet. The layered tissue sheet has two outer layers. The tissue product comprises at least one layer of the layered tissue sheet comprises polysiloxane pretreated pulp fibers and at least one layer of the layered tissue sheet comprises non-treated pulp fibers. At least one layer of the layered tissue sheet comprises polysiloxane pretreated pulp fibers such that one layer comprising polysiloxane pretreated pulp fibers is adjacent to a layer comprising non-treated pulp fibers.Type: GrantFiled: November 6, 2002Date of Patent: April 18, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David Andrew Moline, Dale Alan Burghardt, Thomas Gerard Shannon
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Patent number: 6989076Abstract: In the method, a release layer is formed on base paper to manufacture release paper. The base paper is calendered before forming the release layer in-line on the same production line. A further object of the invention is equipment for manufacturing release paper, which equipment can be used to form a release layer on top of a base paper. The equipment comprises a calender (4) located before the release layer forming unit (5) in-line on the same production line.Type: GrantFiled: December 5, 2002Date of Patent: January 24, 2006Assignee: Lohjan Paperi OyInventors: Rolf Moring, Timo Pahl
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Patent number: 6977026Abstract: A method for applying a softening composition to a paper web of a tissue product is provided. The softening composition is applied primarily to the elevated regions of the tissue product. The application of the softening composition in this manner allows for the use of hydrophobic softeners, such as amino-functionalized polysiloxanes, in an amount of from about 0.05% to about 5% by weight of the tissue product while maintaining a Wet Out Time of less than about 10 seconds.Type: GrantFiled: October 16, 2002Date of Patent: December 20, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Kou-Chang Liu, Daniel Vander Heiden, Strong C. Chuang
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Patent number: 6964725Abstract: The present invention is a tissue product comprising at least one tissue sheet. Each tissue sheet comprises a first side and an opposing second side. At least one tissue sheet comprises selectively treated pulp fiber treated with at least one hydrophobic chemical additive distributed non-uniformly in the z-direction within the tissue sheet. The tissue sheet has a % z-directional hydrophobic chemical additive gradient between the first side of the tissue sheet and the second side of the tissue sheet of about 20% or greater.Type: GrantFiled: November 6, 2002Date of Patent: November 15, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Thomas Gerard Shannon, James Daniel Lorenz, David Andrew Moline, Troy Michael Runge, Thomas Hampshire Schulz
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Patent number: 6951598Abstract: The present invention is a soft tissue sheet. The tissue sheet comprises papermaking fibers and a polysiloxane composition. The polysiloxane composition comprises a polysiloxane and a compatible synthetic resin binder having a glass transition temperature of about 100° C. or less.Type: GrantFiled: November 6, 2002Date of Patent: October 4, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Lisa Ann Flugge, Kelly Dean Branham, William Clayton Bunyard, Thomas Gerard Shannon