Solid Polymer Utilized Is Derived From An Unsaturated Carboxylic Acid Or Salt Patents (Class 524/460)
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Publication number: 20110159306Abstract: An aqueous, metal, coating composition (and process for obtaining it) comprising a block copolymer and a polymer P; wherein the block copolymer comprises at least blocks [A]x[B]y, where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where (a) block [A] comprises (i) 0 to 80 mol % of metal adhering ethylenically unsaturated monomers; (ii) 0 to 100 mol % of water dispersible ethylenically unsaturated monomers; (iii) 0 to 70 mol % of C1 to C30 hydrocarbo (meth)acrylate and/or styrenic monomers; (iv) 0 to 35 mol % of ethylenically unsaturated monomer different from i), ii)+iii); where the amount of at least one of i), ii), iii)+iv) is >0 mol %; block [A] has a Hansch parameter <1.Type: ApplicationFiled: June 30, 2009Publication date: June 30, 2011Inventors: Michael Arnoldus Jacobus Schellekens, Tijs Nabuurs, John Geurts, Gerardus Cornelis Overbeek
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Publication number: 20110152433Abstract: The present invention relates to a process for the preparation of nanoparticulate zinc oxide in the form of aqueous suspensions or in the form of pulverulent solid. Furthermore, the invention relates to the use of zinc oxide particles and suspensions prepared in this way in cosmetic sunscreen preparations, as stabilizer in plastics, in paints, in coatings and as antimicrobial active ingredient.Type: ApplicationFiled: July 30, 2009Publication date: June 23, 2011Applicant: BASF SEInventors: Bernd Bechtloff, Lars Vicum, Hartwig Voss, Robert Wengeler, Andrey Karpov, Jing Dreher, Valerie Andre
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Patent number: 7956156Abstract: A process is described for removing isobutene oligomers from an isobutene polymer by stripping the isobutene polymer with vapors of a saturated hydrocarbon having at least 8 carbon atoms and at least partly driving out the isobutene oligomers. Troublesome isobutene oligomers are substantially removed without impairing the reactivity of the isobutene polymer (expressed as the content of the methylidene double bonds).Type: GrantFiled: November 13, 2007Date of Patent: June 7, 2011Assignee: BASF AktiengesellschaftInventors: Hans Peter Rath, Phillip Hanefeld, Helmut Mach
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Patent number: 7923503Abstract: There provided a pressure-sensitive adhesive (PSA) composition constituting a PSA layer, which may exhibit a plurality of properties in a well-balanced manner, and a PSA sheet including the PSA layer. The composition is an aqueous PSA composition in which an acrylic polymer serves as a main component and the acrylic polymer is dispersed in water, and contains: A) acrylic polymer obtained by polymerizing a monomer raw material including alkyl(meth)acrylate as a main monomer, a first functional monomer having a first functional group to react with a hydrazino group, and a second functional monomer having a second functional group to react with a carbodiimide group; B) a hydrazine-based crosslinking agent; and C) a carbodiimide-based crosslinking agent.Type: GrantFiled: August 3, 2007Date of Patent: April 12, 2011Assignee: Nitto Denko CorporationInventors: Akiko Takahashi, Mami Ikeya
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Publication number: 20110077342Abstract: “The invention relates to a method for preparing a composite latex, including (a) a first step of free radical emulsion or microsuspension polymerization or copolymerization, leading to the production of a first polymer latex, and (b) a second step of free radical microsuspension, emulsion, or suspension polymerization or copolymerization in the presence of the first polymer latex obtained in the first step (a), characterized in that the first polymer forming the latex obtained in step (a) is a halogen-containing vinyl polymer and the polymer formed in step (b) is an associative copolymer, preferably compatible with the halogen-containing vinyl polymer, which contains units from a first monomer (A) and units from a second monomer (B) having at least one associative group; however the nature of both polymers are capable of being reversed.Type: ApplicationFiled: May 11, 2009Publication date: March 31, 2011Inventors: Manuel Hidalgo, Thierry Pascal
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Patent number: 7888439Abstract: A process for the production of aqueous binder latices by multistage emulsion polymerization in the aqueous phase, comprising the successive steps: 1) free-radical polymerization of a monomer mixture A comprising acidic monomers in a proportion corresponding to an acid value of 10 to 100 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.5 to 5 wt %, 2) neutralization of acid groups of the polymer formed in process step 1) and 3) free-radical polymerization of at least one monomer mixture B comprising acidic monomers in a proportion corresponding to an acid value of mixture(s) B of 0 to below 5 mg of KOH/g, hydroxyl-functional monomers in a proportion corresponding to a hydroxyl value of mixture(s) B of 0 to below 5 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.Type: GrantFiled: April 7, 2008Date of Patent: February 15, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Tanja Renkes, Frank Tessari, Matthieu Barrere
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Patent number: 7834079Abstract: Disclose is a water soluble anionic polymer dispersion containing a radical copolymer created in water salt which includes anionic monomer, non-ionic monomer, ionic dispersant and radical polymerization initiator, and anionic surfactant or non-ionic surfactant. Also disclosed is a water soluble anionic polymer dispersion is characterized by containment of radical copolymer created in salt water which includes anionic monomer, non-ionic monomer, ionic dispersant, and radical polymerization initiator, and anionic surfactant, and non-ionic surfactant. Manufacturing methods for the water soluble anionic polymer dispersions are further disclosed herein.Type: GrantFiled: December 14, 2006Date of Patent: November 16, 2010Assignees: Green Technology, Inc., Taki Chemical Co., Ltd.Inventors: Sung Wook Han, Seung Chul Lee
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Patent number: 7833687Abstract: The present invention provides an aqueous dispersion of nonspherical fine resin particles having excellent storage stability and processability such as aggregation and adherence to other substances, a method for producing the aqueous dispersion of fine resin particles, and a method for producing toner particles using the aqueous dispersion of fine resin particles. The present invention relates to an aqueous dispersion of fine resin particles characterized in that the fine resin particles are nonspherical particles with an average minor axis being 0.02 ?m or more and 1.00 ?m or less and an average ratio of a major axis to a minor axis being 2.0 or more and 5.0 or less, a method for producing the aqueous dispersion of fine resin particles, and a method for producing toner particles using the aqueous dispersion of fine resin particles.Type: GrantFiled: October 6, 2009Date of Patent: November 16, 2010Assignee: Canon Kabushiki KaishaInventors: Masayoshi Kato, Takayuki Toyoda, Ryuji Higashi, Ryo Natori, Takaho Shibata, Yuya Chimoto, Takeshi Miyazaki
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Patent number: 7825173Abstract: A process for the production of aqueous binder latices by multistage emulsion polymerization in the aqueous phase, comprising the successive steps: 1) free-radical polymerization of a mixture A of olefinically unsaturated, free-radically polymerizable monomers, comprising at least one monomer with at least one acid group in a proportion corresponding to an acid value of mixture A of 10 to 100 mg of KOH/g and 0.5 to 5 wt.Type: GrantFiled: November 15, 2005Date of Patent: November 2, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Tonnie Willems, Matthieu Barrere, Kok-Far Lee, Frank Tessari, Stefan Wiggershaus, Paul P. Bruylants, Eric C. Houze
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Patent number: 7816441Abstract: The use of an addition polymer A composed in copolymerized form of 0.1% to 40% by weight of at least one C3 to C30 alkene, 40% to 99.9% by weight of at least one ethylenically unsaturated C3 to C6 monocarboxylic acid, 0% to 50% by weight of at least one ethylenically unsaturated C4 to C12 dicarboxylic acid and/or of the ethylenically unsaturated dicarboxylic monoalkyl esters or dicarboxylic anhydrides obtainable from said acid, and 0% to 30% by weight of at least one other ethylenically unsaturated compound which is copolymerizable with the aforementioned monomers, as a dispersing assistant in free-radically initiated aqueous emulsion or suspension polymerization.Type: GrantFiled: July 23, 2009Date of Patent: October 19, 2010Assignee: BASF SEInventors: Oihana Elizalde, Kathrin Michl, Rajan Venkatesh
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Patent number: 7803878Abstract: An aqueous polymer emulsion comprising water and swollen multi-stage polymer is provided. The swollen multi-stage polymer has low dry bulk density, as measured by centrifugation. To achieve the low dry bulk density, the polymer is highly swollen in such a way that it does not subsequently collapse. The polymer is useful in paint and paper coatings.Type: GrantFiled: September 4, 2008Date of Patent: September 28, 2010Assignee: Rohm and Haas CompanyInventors: Robert Mitchell Blankenship, James Keith Bardman
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Patent number: 7803863Abstract: A filler-containing an organic polymer dispersion is provided. The organic polymer of the dispersion is polymerized in the presence of particles of at least one filler. The ratio of the particle size of the filler particles to the particle size of the polymer particles is in the range of from 1.1:1 to 20:1.Type: GrantFiled: October 15, 2003Date of Patent: September 28, 2010Assignee: Henkel AG & Co. KGaAInventor: Roberto Pavez Aranguiz
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Patent number: 7799859Abstract: A surfactant composition has good emulsifiability for monomer(s), and can provide a polymer emulsion (herein after simply called “the emulsion”) of good stability while decreasing coagulations of polymer particles in the emulsion. The surfactant composition contains the following components (A) and (B): (A) a reactive surfactant containing at least one polymerizable double-bond group and at least one ionic group in a molecule, and (B) a nitrogen compound insoluble or slightly soluble in ethanol. A weight ratio (A:B) of the component (A) to the component (B) is from 100:0.03 to 100:1.0.Type: GrantFiled: September 9, 2005Date of Patent: September 21, 2010Assignee: Adeka CorporationInventors: Kazushi Kobayashi, Koji Beppu
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Patent number: 7799881Abstract: A process is described for the preparation of latices based on polychloroprene, comprising the polymerization of chloroprene in the presence of a first latex essentially consisting of polymeric particles produced in a first polymerization of a composition of monomers comprising (a) alpha-, beta-unsaturated carboxylic acids and/or derivatives thereof, (b) vinyl aromatic compounds, (c) conjugated dienes; said first latex having a content of alpha-, beta-unsaturated carboxylic acids, expressed as parts of alpha-, beta-unsaturated carboxylic acids per 100 grams of polymeric particles, ranging from 1 to 15%, thus obtaining a final latex, the solid particles of said final latex having an quantity of chloroprene ranging from 50 to 95% by weight, preferably from 80 to 95% by weight.Type: GrantFiled: June 3, 2009Date of Patent: September 21, 2010Assignee: Polimeri Europa S.p.A.Inventors: Romano Lima, Augusto Fabbri
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Patent number: 7754804Abstract: An aqueous dispersion of water-soluble polymers obtained by free radical polymerization of ethylenically unsaturated anionic monomers in an aqueous medium in the presence of a stabilizer, wherein the stabilizer comprises: (a) at least one water-soluble polymer selected from the group consisting of a graft polymer of vinyl acetate and/or vinyl propionate on polyethylene glycol, a polyethylene glycol blocked at one or both terminal groups with an alkyl, a carboxyl or an amino group, and a copolymer of alkyl polyalkylene glycol methacrylate and methacrylic acid; and (b) at least one water-soluble polymer selected from the group consisting of a hydrolyzed copolymer of vinyl alkyl ether and maleic anhydride in the form of free carboxyl groups or in the form of salts at least partially neutralized with one or more alkali metal hydroxides or one or more ammonium bases, a cationically modified potato starch, an anionically modified potato starch, a degraded potato starch and maltodextrin.Type: GrantFiled: July 17, 2004Date of Patent: July 13, 2010Assignee: BASF AktiengesellschaftInventors: Pulakesh Mukherjee, Marc Leduc, Peter Claassen, Werner Gauweiler, Roland Nowack
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Publication number: 20100170648Abstract: Use of an aqueous polymer composition for impregnating base paper.Type: ApplicationFiled: January 9, 2007Publication date: July 8, 2010Inventors: Oihana Elizalde, Matthias Gerst
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Patent number: 7691934Abstract: The invention is directed to a method of making ultra high molecular weight diallyldialkyl ammonium salt homopolymers, compositions thereof and use of compositions as a fixative in papermaking.Type: GrantFiled: October 19, 2006Date of Patent: April 6, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Zhiqiang Song, George William Schriver, Holger Reinicke
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Patent number: 7691935Abstract: A process for producing an aqueous emulsion of a polyolefin having a weight-average molecular weight of 20,000 or higher, characterized in that a styrene/maleic anhydride copolymer or/and an ester of a styrene/maleic acid copolymer is used as a polymer dispersant.Type: GrantFiled: February 19, 2004Date of Patent: April 6, 2010Assignee: Maruyoshi Chemical Co., LtdInventor: Iwao Sakamoto
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Publication number: 20100016493Abstract: PSAs having enhanced resistance to water-whitening and high shear stability are disclosed. The PSAs are obtained from an aqueous dispersion comprising an effective amount of surfactant mixture comprising at least one ionic surfactant comprising a plurality, preferably at least three, aromatic rings, at least one electronegative substituent selected from a mono valent oxy substituted sulfo anion, and/or a mono valent oxy substituted phospho anion, and at least one substituent comprising one or more repeating alkoxy units (e.g. Soprophor 4D 384), and at least one non-ionic surfactant (e.g. Abex 2535) and a further non aromatic ionic surfactant (e.g. Aerosol OT 75); and a monomer composition comprising: at least one hydrophobic monomer (Component I), at least one hydrophilic monomer (Component II) at least one partially hydrophilic monomer (Component III) and optionally at least one a ureido monomer (e.g. Norsocryl 102) (Component IV).Type: ApplicationFiled: June 1, 2007Publication date: January 21, 2010Applicant: CYTEC SURFACE SPECIALTIES, S.A.Inventors: Leo Ternorutsky, Jong-Shing Guo, Augustin Chen
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Publication number: 20100010143Abstract: Process for preparing an aqueous polymer composition using water-soluble free radical chain regulators.Type: ApplicationFiled: February 4, 2008Publication date: January 14, 2010Applicant: BASF SEInventors: Oihana Elizalde, Matthias Gerst
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Publication number: 20090326137Abstract: A process to disperse organic microparticles/nanoparticles into non-aqueous resin medium is provided. The process includes the steps of a) preparing a resin dispersion/emulsion in water and/or solvent where the resin contains unsaturation in the polymer chain and optionally comprises an ethylenically unsaturated monomer; b) curing the resin dispersion/emulsion by adding monomer and/or initiator; and c) adding the cured dispersion/emulsion during a synthesis step of a resin medium. The amount of organic microparticles/nanoparticles in the resin medium can be about 2 to about 30% by weight based on the total weight of the composition.Type: ApplicationFiled: May 28, 2009Publication date: December 31, 2009Inventors: Chih-Pin Hsu, Ming Yang Zhao, Steven L. Voeks
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Publication number: 20090326138Abstract: The invention relates to water-based coating compositions, comprising: A) at least one aqueous (meth)acrylate latex, B) at least one aqueous polymer latex, selected from the group consisting of polydiene latex, polydiene copolymer latex, polystyrene latex, nitrile latex and mixtures thereof, and C) at least one amino resin.Type: ApplicationFiled: December 5, 2007Publication date: December 31, 2009Inventors: Dmitry Chernyshov, Uwe Wilkenhoener
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Patent number: 7608656Abstract: A process for producing an emulsion pressure-sensitive adhesive includes (co)polymerizing a main monomer in the presence of a protective colloid, the protective colloid being an acrylic copolymer including (A-1) at least one hydrophilic monomer selected from the group consisting of acrylamide, methacrylamide, hydroxyethyl acrylate and hydroxyethyl methacrylate and (B-1) an alkyl (meth)acrylate that is copolymerizable with the hydrophilic monomer (A-1) and whose alkyl group has 4 to 18 carbon atoms, or (A-2) a hydrophilic monomer being acrylic acid and/or methacrylic acid and (B-2) an alkyl (meth)acrylate that is copolymerizable with the hydrophilic monomer (A-2) and whose alkyl group has 4 to 9 carbon atoms; the hydrophilic monomer and the alkyl (meth)acrylate being copolymerized in a weight ratio in the range of 40-70:60-30; the acrylic copolymer having a weight-average molecular weight in the range of 500 to 50000.Type: GrantFiled: February 11, 2008Date of Patent: October 27, 2009Assignee: Soken Chemical & Engineering Co., Ltd.Inventor: Kiyokuni Saitama
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Patent number: 7608208Abstract: The current invention relates to water-swellable polymers at least partially comprised of sulfonic acid group containing monomers as additives for fire extinguishing water, which exhibits an elevated NaCl content, used in fire prevention and to combat fire.Type: GrantFiled: February 8, 2002Date of Patent: October 27, 2009Assignee: Evonik Stockhausen GmbHInventors: Jochen Houben, Erich Küster, Martin Tennie
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Patent number: 7598303Abstract: A process for making an aqueous dispersion is provided. More specifically, a process for making an aqueous dispersion having at least two polymeric components is provided.Type: GrantFiled: January 24, 2006Date of Patent: October 6, 2009Assignee: Rohm and Haas CompanyInventor: Willie Lau
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Publication number: 20090239989Abstract: A process is described for the preparation of latices based on polychloroprene, comprising the polymerization of chloroprene in the presence of a first latex essentially consisting of polymeric particles produced in a first polymerization of a composition of monomers comprising (a) alpha-, beta-unsaturated carboxylic acids and/or derivatives thereof, (b) vinyl aromatic compounds, (c) conjugated dienes; said first latex having a content of alpha-, beta-unsaturated carboxylic acids, expressed as parts of alpha-, beta-unsaturated carboxylic acids per 100 grams of polymeric particles, ranging from 1 to 15%, thus obtaining a final latex, the solid particles of said final latex having an quantity of chloroprene ranging from 50 to 95% by weight, preferably from 80 to 95% by weight.Type: ApplicationFiled: June 3, 2009Publication date: September 24, 2009Applicant: POLIMERI EUROPA S.P.AInventors: Romano Lima, Augusto Fabbri
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Patent number: 7576149Abstract: A recording medium with an ink image thereon, wherein a varnish at least partially covers the ink image, and wherein the varnish composition prior to application comprises at least one latex emulsion, water, at least one base and at least one surfactant.Type: GrantFiled: May 31, 2006Date of Patent: August 18, 2009Assignee: Xerox CorporationInventors: Christine D. Anderson, T. Brian McAneney
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Publication number: 20090186232Abstract: An emulsion comprising a dispersoid dispersed in water together with an emulsifier, wherein the dispersoid is an olefin copolymer containing a structural unit derived from ethylene, linear ?-olefin, or ethylene and linear ?-olefin, and a structural unit derived from the following vinyl compound (I), or an olefin copolymer modified material obtained by further graft-polymerizing unsaturated carboxylic acids to the olefin copolymer, and the volume-based median diameter of the dispersoid contained in the emulsion is 0.01 to 1 ?m. CH2?CH—R??(I) (wherein, R in the vinyl compound (I) represents a secondary alkyl group, tertiary alkyl group or alicyclic hydrocarbon group.).Type: ApplicationFiled: April 10, 2007Publication date: July 23, 2009Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, SUMIKA CHEMTEX COMPANY, LIMITEDInventors: Yoshihito Okubo, Kazutaka Kusunoki, Tatsuo Mitsutake, Hideo Narahara, Tadashi Hikasa
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Patent number: 7544753Abstract: A process for producing an elastic fluorocopolymer, by emulsion-polymerizing at least one fluoromonomer (a), a vinyl ester monomer (b) represented by the formula CR1R2?CR3COOCH?CH2 optionally, at least one hydrocarbon monomer (c) selected from the group consisting of ethylene, propylene and a vinyl ether, in an aqueous medium to produce an elastic fluorocopolymer latex, adjusting the pH of the elastic fluorocopolymer latex to from 1 to 9, and coagulating the elastic fluorocopolymer latex to isolate an elastic fluorocopolymer.Type: GrantFiled: January 3, 2007Date of Patent: June 9, 2009Assignee: Asahi Glass Company, LimitedInventors: Junpei Nomura, Hiroshi Funaki, Hiroki Kamiya
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Patent number: 7514500Abstract: The invention provides a process for preparing polymeric beads of complexing resin incorporating magnetic particles, which process comprises: producing a dispersion having a continuous aqueous phase and a dispersed organic phase, said organic phase comprising one or more polymerisable monomers, magnetic particles and a dispersing agent for dispersing said magnetic particles in the organic phase; polymerising said one or more polymerisable monomers to form polymeric beads incorporating said magnetic particles, wherein said polymeric beads include amine groups capable of complexing a transition metal cation, or wherein said polymeric beads are reacted with one or more compounds to provide amine groups capable of complexing a transition metal cation, complexing resins prepared by this process, and polymeric beads of complexing resin comprising a polymer matrix having magnetic particles dispersed substantially uniformly therein, wherein the polymer matrix incorporates amine groups capable of complexing a transitiType: GrantFiled: January 8, 2003Date of Patent: April 7, 2009Assignees: Commonwealth Scientific and Industrial Research Organization, Orica Australia Pty. Ltd.Inventors: Robert James Eldridge, Marck Norret, Thomas W. Dahlke, Mathew John Ballard, Beryn John Adams
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Publication number: 20090076211Abstract: The present invention relates to hyperbranched copolymers and compositions in which they are incorporated, e.g., colorant compositions, tint bases, and coatings such as latex paint, and methods for making such copolymers and compositions.Type: ApplicationFiled: July 21, 2008Publication date: March 19, 2009Inventors: Yong Yang, Robert Sheerin, Johanna L. Garcia de Visicaro
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Publication number: 20090036574Abstract: An aqueous dispersion includes a self-crosslinking alkylolacrylamide containing interpolymer, the interpolymer being prepared in an emulsion polymerization medium by way of interpolymerizing in the medium: (a) acrylamide monomer; (b) N—C2 to C10 alkylolacrylamide monomer, wherein the molar ratio of acrylamide:N—C2 to C10 alkylolacrylamide interpolymerized is at least 0.5; and (c) at least one or more additional ethylenically unsaturated monomers added to the medium in an amount of from about 80 weight % to about 98 weight % based on the dry weight of monomer interpolymerized in the medium. The dispersions are particularly useful as binders for fibrous webs.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Inventor: Joel E. Goldstein
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Patent number: 7445849Abstract: A description is given of a concrete molding which is coated with cement-bound mineral coating composition (cement slurry) and with a transparent varnish, the transparent varnish comprising as binder an aqueous polymer dispersion and also at least one anionic emulsifier containing at least one phosphate and/or phosphonate group. The concrete molding is distinguished by high gloss and can be used in particular as rooftile.Type: GrantFiled: September 20, 2004Date of Patent: November 4, 2008Assignee: Celanese Emulsions GmbHInventors: Gregor Apitz, Helga Machnik, Hans W. Kremer, Stephan Krieger, Klaudia Knell
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Patent number: 7435783Abstract: An aqueous polymer emulsion comprising water and swollen multi-stage polymer is provided. The swollen multi-stage polymer has low dry bulk density, as measured by centrifugation. To achieve the low dry bulk density, the polymer is highly swollen in such a way that it does not subsequently collapse. The polymer is useful in paint and paper coatings.Type: GrantFiled: November 8, 2004Date of Patent: October 14, 2008Assignee: Rohm and Haas CompanyInventors: Robert Mitchell Blankenship, James Keith Bardman
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Patent number: 7435773Abstract: A resin composite having excellent tensile strength and a process for producing the composite are provided. The resin composite comprises a resin and aluminum hydroxide having an average primary-particle diameter of about 100 nm or smaller and has an index Y/X of 0.1 or less provided that the value X is an average intensity of intensities of aluminum characteristic X-ray measured by scanning a beam on a straight line on the composite with an electron-probe X-ray microanalyzer and the value Y is a standard deviation of the intensities.Type: GrantFiled: November 9, 2000Date of Patent: October 14, 2008Assignee: Sumitomo Chemical Company, LimitedInventor: Satoru Nippa
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Publication number: 20080207774Abstract: This invention relates to the field of polymeric materials that can be used in combination with a wide variety of substrates, such as personal care products, textiles, metal, cellulosic materials, plastics, and the like, and to the field of active agents including, for example, antimicrobial, antibacterial and antifungal materials. This invention further relates to latex polymer coatings that comprise at least one active component as well as methods for making and using such latex compositions.Type: ApplicationFiled: May 6, 2008Publication date: August 28, 2008Inventor: Venkataram Krishnan
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Publication number: 20080207816Abstract: An adhesive composition comprising an amount of an adhesive, and an amount of an additive which is selected from the group of homopolymers of acrylic acid, copolymers of acrylic acid and, polyacrylates, polyurethanes, cellulose thickening agent, natural or synthetic gum, natural or synthetic resin, silica or an inorganic mineral having a layered structure.Type: ApplicationFiled: June 25, 2004Publication date: August 28, 2008Applicant: CORRUTECHInventors: Philippe Ceulemans, Olivier Ceulemans
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Patent number: 7411020Abstract: In one aspect, the invention provides a water-based release coating composition comprising a mixture of: A. from 0.1 to about 5 wt % of a fluoro(meth)acrylate (co)polymer or a fluorochemical urethane compound containing at least one fluorinated group having the formula —CF2)nCF3, wherein n is an integer from 1 to 3; B. from about 5 to about 99.9 wt % of a copolymer comprising the reaction product of a. from about 40 to about 70 wt % of an alkyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms, b. from about 3 to about 20 wt % of (meth)acrylic acid, c. from about 20 to about 40 wt % acrylonitrile, and d. from 0 to about 15 wt % of vinyl monomer, other than acrylonitrile, wherein the sum of a. through d. equals 100%; and C. from 0 to about 94.9 wt % of an extender polymer, wherein the sum of A., B., and C. is 100% and wt % is based on the total amount of solids in the composition.Type: GrantFiled: December 28, 2004Date of Patent: August 12, 2008Assignee: 3M Innovative Properties CompanyInventors: James G. Carlson, John C. Clark, James P. DiZio, David J. Kinning, Ramesh C. Kumar, Chetan P. Jariwala
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Patent number: 7375161Abstract: A process for producing an emulsion pressure-sensitive adhesive comprises (co)polymerizing a main monomer in the presence of a protective colloid, the protective colloid being an acrylic copolymer comprising (A-1) at least one hydrophilic monomer selected from the group consisting of acrylamide, methacrylamide, hydroxyethyl acrylate and hydroxyethyl methacrylate and (B-1) an alkyl (meth)acrylate that is copolymerizable with the hydrophilic monomer (A-1) and whose alkyl group has 4 to 18 carbon atoms, or (A-2) a hydrophilic monomer being acrylic acid and/or methacrylic acid and (B-2) an alkyl (meth)acrylate that is copolymerizable with the hydrophilic monomer (A-2) and whose alkyl group has 4 to 9 carbon atoms; the hydrophilic monomer and the alkyl (meth)acrylate being copolymerized in a weight ratio in the range of 40-70:60-30; the acrylic copolymer having a weight-average molecular weight in the range of 500 to 50000.Type: GrantFiled: February 27, 2004Date of Patent: May 20, 2008Assignee: Soken Chemical & Engineering Co., Ltd.Inventor: Kiyokuni Takashima
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Publication number: 20080033096Abstract: There provided a pressure-sensitive adhesive (PSA) composition constituting a PSA layer, which may exhibit a plurality of properties in a well-balanced manner, and a PSA sheet including the PSA layer. The composition is an aqueous PSA composition in which an acrylic polymer serves as a main component and the acrylic polymer is dispersed in water, and contains: A) acrylic polymer obtained by polymerizing a monomer raw material including alkyl(meth)acrylate as a main monomer, a first functional monomer having a first functional group to react with a hydrazino group, and a second functional monomer having a second functional group to react with a carbodiimide group; B) a hydrazine-based crosslinking agent; and C) a carbodiimide-based crosslinking agent.Type: ApplicationFiled: August 3, 2007Publication date: February 7, 2008Applicant: NITTO DENKO CORPORATIONInventors: Akiko TAKAHASHI, Mami IKEYA
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Publication number: 20080033095Abstract: A method for producing an aqueous pressure-sensitive adhesive (PSA) composition suitable to form a PSA sheet which exhibits high level of adhesive strength, cohesive strength under high temperature conditions and edge peeling resistance in a well-balanced manner is provided. The method comprises subjecting a monomer material to emulsion polymerization to obtain an aqueous emulsion of an acrylic polymer; and adding a crosslinking agent to the emulsion to obtain an aqueous PSA composition. The emulsion polymerization is carried out so as to obtain an acrylic polymer having a mass ratio of the ethyl acetate-insoluble matter of 3% or greater, but 15% or less and a weight average molecular weight of the THF-soluble matter of 70×104 or greater, but 100×104 or less. The crosslinking agent is added such that the mass ratio of the ethyl acetate-insoluble matter with respect to a post-crosslinking PSA 40% or greater, but 70% or less.Type: ApplicationFiled: August 3, 2007Publication date: February 7, 2008Applicant: NITTO DENKO CORPORATIONInventors: Akiko TAKAHASHI, Mami IKEYA
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Patent number: 7323510Abstract: The invention relates to methods for manufacturing a water-in-water polymer dispersion containing polymer A and at least one polymer dispersant B, according to which monomers, which are dispersed in an aqueous phase containing water-soluble dispersant B, are subjected to radical polymerization, possibly following the addition of a water-soluble salt, and, after polymerisation, a water-soluble acid is added to the water-soluble and/or water-swellable polymer A obtained in this way, where the acid is added in quantities of 0.1 to 5% by weight and the salt in quantities of up to a maximum of 3% by weight, each referred to the total dispersion, and the total quantity of salt and acid amounts to a maximum of 5% by weight, referred to the total dispersion.Type: GrantFiled: December 1, 2001Date of Patent: January 29, 2008Assignee: Ashland Licensing and Intellectual Property LLCInventors: Ulrich Fischer, Otto Schroers, Wolfgang Woebel
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Patent number: 7317056Abstract: There is provided a synthetic resin emulsion comprising polymer particles having a core/shell structure, wherein the shell comprises a copolymer of an unsaturated carboxylic acid and a hydrophilic comonomer, the core comprises a copolymer of a monomer mixture comprising a radically polymerizable main monomer and a radically polymerizable functional monomer, and the monomers constituting the monomer mixture are selected so that the glass transition point (Tg) of the copolymer produced by polymerization is ?20° C. or below, and the synthetic resin emulsion has been produced by adding the monomer mixture for core formation and a pH adjustor to an aqueous copolymer solution, which has not been neutralized, produced by polymerizing the unsaturated carboxylic acid and the hydrophilic comonomer in an aqueous medium, and allowing a polymerization reaction to proceed.Type: GrantFiled: December 27, 2002Date of Patent: January 8, 2008Assignee: Celanese International CorporationInventors: Nobuyoshi Yoshimura, Yuji Moriya
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Patent number: 7304124Abstract: A stripping process is provided which continuously strips volatile substances from a dispersion containing a polymer particles through stripping the volatile substances from a dispersion by blowing an inert gas into the dispersion to draw the volatile substances into the inert gas, removing the volatile substances from the gas mixture of the inert gas and the stripped volatile substances and circulating the purified inert gas obtained by removing the volatile substances from the gas mixture, and blowing the purified inert gas into the dispersion. Also provided is a production process for a toner which uses this stripping process.Type: GrantFiled: November 1, 2002Date of Patent: December 4, 2007Assignee: Zeon CorporationInventors: Takeo Fujino, Kazuhiro Sato
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Patent number: 7285590Abstract: Aqueous dispersions are disclosed, having a minimum film formation temperature no greater than about 50° C., that include a multi-stage emulsion polymer made by a process that includes a first polymerization stage, in which a first monomer mixture having a calculated glass transition temperature of at least about 50° C. is polymerized via free radical emulsion polymerization to obtain a first-stage emulsion polymer, and a second polymerization stage, in which a second monomer mixture, having a calculated glass transition temperature from about ?30° C. to about 10° C., is polymerized via free radical emulsion polymerization, in the presence of the first-stage emulsion polymer. The dispersions are useful in a variety of coating compositions that exhibit improved block resistance.Type: GrantFiled: November 13, 2003Date of Patent: October 23, 2007Assignee: Hexion Specialty Chemicals, Inc.Inventors: Pavel Holub, Edward Enns McEntire
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Patent number: 7247671Abstract: Aqueous crosslinkable coating composition suitable for anti-graffiti and heavy duty applications comprising: (A) an aqueous polymer emulsion comprising at least one vinyl fluoropolymer which comprises as a polymerized constituent monomer thereof (i) a fluoromonomer(s) having the formula (1) wherein R1 is CH3 or H, R2 is a per-fluorinated C1-5 alkyl group and n is 1, 2, 3 or 4, (ii) a hydroxyl functional monomer(s) and (iii) a carboxylic acid-functional monomer(s) where the vinyl fluoropolymer has a glass transition temperature Tg within the range of from ?50 to 90° C.Type: GrantFiled: July 22, 2002Date of Patent: July 24, 2007Assignee: DSM IP Assets B.V.Inventors: Gerardus Cornelis Overbeek, Jurgen Scheerder, Tijs Nabuurs
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Patent number: 7241829Abstract: Polyolefin/clay nanocomposites with an exfoliated structure are prepared by a process which employs a specific chain end functionalized polyolefin that serves as the clay/polyolefin interfacial compatibilizer (or polymeric surfactant). The polyolefin contains a hydrophilic terminal functional group and an unperturbed hydrophobic high molecular weight polymer chain. The reaction may be carried out in a melt or solution process. Also disclosed are materials made by the process. Also disclosed are materials made by the process.Type: GrantFiled: July 14, 2004Date of Patent: July 10, 2007Assignee: The Penn State Research FoundationInventors: Tze-Chiang Chung, Evangelos Manias, Zhiming M. Wang
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Patent number: 7199178Abstract: A process for preparing copolymer dispersions that includes subjecting A) one or more vinyl monomer mixtures containing a) OH-free (meth)acrylic esters and/or vinylaromatics, b) hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, c) ionic and/or potentially ionic monomers capable of free-radical copolymerization, and d)optionally further monomers, other than the compounds of components a)–c), capable of free-radical copolymerization; to free-radical polymerization in the presence of e) compounds according to formula (I) where R1 is an aliphatic, araliphatic or aromatic radical having 1 to 18 carbon atoms, R2 is H or CH3, R3, R4 are identical or different aliphatc radicals having 1 to 7 carbon atoms and n is 1 to 4; and subsequently dispersing the resultant copolymer B) before or after addition of a neutralizing agent C) in water. The resulting dispersions can be used to coat substrates.Type: GrantFiled: January 24, 2005Date of Patent: April 3, 2007Inventors: Martin Melchiors, Thomas Münzmay, Thomas Stingl, Hartmut Ottensmann, Heinz-Dietmar Gewiss
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Patent number: 7105593Abstract: An aqueous polymer blend composition containing particles of a first polymer and particles of a second polymer with preferred molecular weight ranges is provided. Coatings prepared from the aqueous polymer blend composition may be employed as coatings which have water whitening resistance and provide resistance to efflorescence to cementitious substrates, such as roof tiles. A method of preparing a coated cementitious substrate with the aqueous polymer blend composition and an article containing the coated cementitious substrate are also provided.Type: GrantFiled: November 24, 2004Date of Patent: September 12, 2006Assignee: Rohm and Haas CompanyInventors: Robert David Solomon, Mary Anne Regina Matthews
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Patent number: 7052629Abstract: A binder for battery comprising composite polymer particles in which two or more polymers having different chemical structures form a heterogeneous phase structure. Preferably, said two or more polymers include two polymers having a glass transition temperature (Tg) different from each other by 5° C. or more. When a slurry prepared by mixing the binder with a liquid material and an active material is used for the production of an electrode for a secondary battery, especially, a lithium secondary battery, the resulting battery exhibits an improved performance because the slurry imparts a well-balanced binding power and a binding durability.Type: GrantFiled: January 9, 2003Date of Patent: May 30, 2006Assignee: Zeon CorporationInventors: Koichiro Maeda, Haruhisa Yamamoto