Patents Assigned to Wacker Polymer Systems GmbH & Co. KG
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Publication number: 20080076871Abstract: Polyvinyl acetals with low solution viscosities and maximum Newtonian flow behavior contain sulphonate-functional vinyl ether or sulphonate-functional allyl ether units in addition to conventional vinyl ester, vinyl alcohol, and vinyl acetal units.Type: ApplicationFiled: June 23, 2005Publication date: March 27, 2008Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventor: Andreas Lumpp
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Publication number: 20080017310Abstract: Hot melt adhesives with good flow characteristics, resistance to gelling at elevated temperature, strong adhesion, and yet which can be easily removed from substrates with water, are formulated with one or more partially saponified vinyl ester homo- or copolymers having a molecular weight below 70,000 Da, a degree of hydrolysis of from 62 to 86 mol %, the adhesives being free of mannitol and anionic surfactants.Type: ApplicationFiled: February 10, 2005Publication date: January 24, 2008Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventors: Rene Grawe, Peter Ball, Werner Bauer, Robert Tangelder
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Publication number: 20080015321Abstract: Non-blocking solid vinyl ester copolymer resins have at least two different glass transition temperatures and are prepared by free-radical bulk or solution polymerization of 1. a) 50% to 97 % by weight of one or more comonomers M1 selected from vinyl esters of optionally branched C1-15 alkylcarboxylic acids and optionally alpha-olefin(s), monomers M1 producing homopolymers with a Tg<40° C., with b) 3% to 50% by weight of one or more comonomers M2 selected from vinylaromatics, (meth)acrylic acid and esters or amides thereof, and acrylonitrile, the comonomers M2 producing homopolymers having a Tg>50° C., wherein respecting the copolymerization of comonomers M1 with comonomers M2, the copolymerization parameters r1<0.2 and r2>2.0, and wherein some or all of comonomers M2, and at least 3% by weight are introduced before the start of the polymerization.Type: ApplicationFiled: May 18, 2005Publication date: January 17, 2008Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventors: Kurt Stark, Andreas Lumpp, Christian Hogl
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Publication number: 20070295246Abstract: Silane-modified polyvinyl alcohols are prepared by copolymerizing a vinyl ester monomer and an epoxy-functional comonomer, reacting epoxy groups with a nucleophilic silane containing at least one alkoxy group, and hydrolyzing to a polyvinyl alcohol copolymer.Type: ApplicationFiled: October 20, 2005Publication date: December 27, 2007Applicant: WACKER POLYMERS SYSTEMS GMBH & CO. KGInventors: Andreas Bacher, Karl Fickert, Theo Mayer
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Publication number: 20070293645Abstract: Low shear-thinning polyvinyl acetals having a solution viscosity in 30 % strength by weight solution in methyl ethyl ketone which changes by not more than 10% in a shear rate range from 1 to 100 s?1. The preparation of the low shear-thinning polyvinyl acetals involves acetalation of partly hydrolyzed or completely hydrolyzed vinyl ester polymers comprising ?50 mol % of vinyl alcohol units with one or more aldehydes, optionally in the form of the hydrates, hemiacetals or full acetals, wherein from 0 to 60% by weight of the aldehyde, based on the total amount of the aldehyde, is initially introduced over the course of the first one to ten minutes of the acetalation and is prereacted over the course of from 1 to 30 minutes, and the remaining proportion is then metered in continuously over the course of at least 20 minutes.Type: ApplicationFiled: November 3, 2005Publication date: December 20, 2007Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventor: Kurt Stark
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Patent number: 7309746Abstract: Silane-containing polymers are prepared by the polymerization of one or more ethylenically unsaturated monomers in the presence of a silane-containing aldehyde, hemiacetal, or acetal as a regulator, optionally with further regulators as well. The silane-containing regulators produce polymers with superior properties and with improved polymerization parameters as compared to the conventional mercaptosilane regulators.Type: GrantFiled: July 17, 2003Date of Patent: December 18, 2007Assignee: Wacker Polymer Systems GmbH & Co. KGInventors: Andreas Bacher, Kurt Stark
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Publication number: 20070265394Abstract: Solid polyvinyl acetate resins functionalized by acid groups which also contain terminal carboxy groups besides carboxy-functional comonomer units display superior properties as low profile additives for unsaturated polyester resins.Type: ApplicationFiled: June 23, 2005Publication date: November 15, 2007Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventors: Rene Grawe, Andreas Lumpp
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Publication number: 20070260021Abstract: Softness-modified polyvinyl acetal resins are obtained via hydrolyzing copolymers of vinyl acetate and C9-15 monocarboxylic acids, which contain from 5 to 60% by weight of tertiary vinyl ester, and subsequently acetalizing with one or more C1-6 aliphatic aldehydes.Type: ApplicationFiled: June 23, 2005Publication date: November 8, 2007Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventor: Andreas Lumpp
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Patent number: 7288580Abstract: Water-redispersible polymer powder compositions with accelerated-setting action based on homo- or copolymers of one or more monomers of vinyl esters of optionally branched C1-15 alkylcarboxylic acids, (meth)acrylic esters of C1-15 alcohols, vinylaromatics, olefins, dienes, and vinyl halides, one or more protective colloids, and optionally antiblocking agent(s), contain one or more setting-accelerants NR3, R2N—(CH2)n—NR2, or one or more singly or doubly NH2-terminated polyalkylene glycols having a C1-C6-alkylene group is/are present, where n=from 1 to 4, and where the radicals R are identical or different, and are hydrogen, a C1-C6-alkyl radical, or a C1-C6-hydroxyalkyl radical, where at least one radical R is a C1-C6-hydroxyalkyl radical, and wherein the setting-accelerants may optionally be present in the form of their salts.Type: GrantFiled: October 14, 2003Date of Patent: October 30, 2007Assignee: Wacker Polymer Systems GmbH & Co. KGInventor: Hans-Peter Weitzel
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Patent number: 7288581Abstract: The invention relates to a process for the stabilization of dusting surfaces characterized in that the dusty ground is tilled or scarified and mixed with polymers in form of water-redispersible polymer powders, which are optionally reemulsifiably modified, or reemulsifiable modified aqueous polymer dispersions, which are optionally sprayed on to the untreated dusty ground. In a preferred embodiment the redispersible polymer powder, respectively the reemulsifiable modified redispersible polymer powder or the reemulsifiable modified aqueous polymer dispersion, is combined with hydraulically setting compounds, preferably cement and/or gypsum.Type: GrantFiled: December 15, 2004Date of Patent: October 30, 2007Assignee: Wacker Polymer Systems GmbH & Co. KGInventors: Eric Ferrall, Michael Spradling, Manfred Selig
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Patent number: 7288592Abstract: Organosilicone and vinyl ester copolymers free from phase separation are prepared by copolymerizing at least one vinyl ester monomer with organosilicones containing difunctional silicone monomers and optionally a minor amount of monofunctional silicone monomers, in a non-aqueous solvent mixture containing at least one solvent with a transfer coefficient greater than 20·10?4 relative to vinyl acetate.Type: GrantFiled: April 3, 2003Date of Patent: October 30, 2007Assignee: Wacker Polymer Systems GmbH & Co. KGInventors: Kurt Stark, Robert Singer
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Publication number: 20070244266Abstract: Polyvinyl acetals with a high degree of acetalization and low solution viscosity are prepared by acetalizing partly or fully hydrolyzed polyvinyl ester polymers dissolved or slurried in aldehyde.Type: ApplicationFiled: June 23, 2005Publication date: October 18, 2007Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventor: Andreas Lumpp
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Patent number: 7250468Abstract: Polyvinyl-alcohol-stabilized redispersible powders which have plasticizing properties are obtained by drying polyvinyl-alcohol-stabilized aqueous dispersions of polymers of one or more monomers from the group of vinyl esters of optionally branched C1-18 alkylcarboxylic acids, (meth)acrylic esters of optionally branched C1-15 alcohols, dienes, olefins, vinylaromatics and vinylhalides, in the presence of a copolymer formed from a) one or more monomers from the group of ethylenically unsaturated monocarboxylic acids, ethylenically unsaturated dicarboxylic acids and their anhydrides, each having 4 to 8 carbon atoms, and salts thereof, b) one or more ethylenically unsaturated compounds containing sulfonic, sulfuric, and/or phosphonic acid groups, and salts thereof, and c) one or more monomers from the group consisting of vinyl esters of optionally branched C1-18 alkylcarboxylic acids and (meth)acrylic esters of optionally branched C1-15 alcohols.Type: GrantFiled: April 7, 2004Date of Patent: July 31, 2007Assignee: Wacker Polymer Systems GmbH & Co. KGInventors: Reinhard Harzschel, Thomas Bastelberger, Ulf Dietrich, Armin Hoffmann
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Publication number: 20070173574Abstract: Copolymers of ethylene and vinyl chloride also containing a protective colloid, optionally in conjunction with a fatty acid compound or precursor thereof or with an organosilicon compound, can be employed to increase the water repellancy of hydraulically settable construction materials.Type: ApplicationFiled: May 18, 2005Publication date: July 26, 2007Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KGInventors: Hans-Peter Weitzel, Hermann Lutz
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Publication number: 20070155862Abstract: Polyvinyl-alcohol-stabilized redispersible powders which have plasticizing properties are obtained by drying polyvinyl-alcohol-stabilized aqueous dispersions of polymers of one or more monomers from the group of vinyl esters of optionally branched C1-18 alkylcarboxylic acids, (meth)acrylic esters of optionally branched C1-15 alcohols, dienes, olefins, vinylaromatics and vinylhalides, in the presence of a copolymer formed from a) one or more monomers from the group of ethylenically unsaturated monocarboxylic acids, ethylenically unsaturated dicarboxylic acids and their anhydrides, each having 4 to 8 carbon atoms, and salts thereof, b) one or more ethylenically unsaturated compounds containing sulfonic, sulfuric, and/or phosphonic acid groups, and salts thereof, and c) one or more monomers from the group consisting of vinyl esters of optionally branched C1-18 alkylcarboxylic acids and (meth)acrylic esters of optionally branched C1-15 alcohols.Type: ApplicationFiled: March 14, 2007Publication date: July 5, 2007Applicant: WACKER POLYMER SYSTEMS GMBH & CO., KGInventors: Reinhard Haerzschel, Thomas Bastelberger, Ulf Dietrich, Armin Hoffmann
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Patent number: 7183358Abstract: Hydrophobically modified polymer compositions contain at least one polymer based on one or more ethylenically unsaturated monomers, in the form of an aqueous polymer dispersions or water-redispersible polymer powder prepared therefrom, further containing, a) one or more silanes, polysilanes, oligosiloxanes, polysiloxanes, carbosilanes, polycarbosilanes, carbosiloxanes, polycarbosiloxanes, polysilylenedisiloxanes, and b) one or more fatty compounds from the group of the fatty acids having from 8 to 22 carbon atoms, their metal soaps, their amides, and their esters with monohydric alcohols having from 1 to 8 carbon atoms, with glycol, with polyglycol, with polyalkylene glycol, with glycerol, with mono-, di-, or triethanolamine, or with monosaccharides.Type: GrantFiled: June 17, 2003Date of Patent: February 27, 2007Assignee: Wacker Polymer Systems GmbH & Co. KGInventors: Thomas Bastelberger, Reinhard Härzschel, Franz Jodlbauer
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Publication number: 20070037925Abstract: Water-redispersible polymer powder compositions based on a) homo- or copolymers of one or more monomers from the group consisting of vinyl esters of unbranched or branched C1-15 alkylcarboxylic acids methacrylic esters and acrylic esters of C1-15 alcohols, vinylaromatics, olefins, dienes, and vinyl halides, with one or more protective colloids, and optionally, one or more antiblocking agents, in conjunction with one or more alkali metal or alkaline earth metal C1-4 carboxylates as setting accelerants added follwoing polymerization accelerate the setting of construction chemistry products with hydraulically setting binders.Type: ApplicationFiled: March 4, 2004Publication date: February 15, 2007Applicant: WACKER POLYMER SYSTEM GmbH & CO. KGInventors: Hans-Peter Weitzel, Hermann Lutz, Peter Fritze
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Patent number: 7153581Abstract: The invention provides organic silicone copolymers based on a) from 30 to 99% by weight of a vinylaromatic, (meth)acrylic ester, vinyl ester, olefin, diene, and/or vinyl halide monomer, and b) from 1 to 70% by weight of a mixture of at least two diorganopolysiloxanes having the general formula R1aR3-aSiO(SiR2O)nSiR3-aR1a, in which each R denotes a monovalent, optionally substituted, C1-18 alkyl or C1-18 alkoxy radical, R1 denotes a polymerizable group, a is 0 or 1, at least one a being 1, and n is an integer, where b1) from 5 to 65% by weight of the silicone component b) is a diorganopolysiloxane with n?30 and only one terminal polymerizable group R1, and b2) from 35 to 95% by weight of the silicone component b) is a diorganopolysiloxane with n?55 and with one or two terminal polymerizable groups R1.Type: GrantFiled: January 30, 2003Date of Patent: December 26, 2006Assignee: Wacker Polymer Systems GmbH & Co. KGInventor: Kurt Stark
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Publication number: 20060264539Abstract: Polymers stabilized by protective colloids and/or emulsifiers and consisting of at least one comonomer unit from the group consisting of vinyl esters of utinbranched or branched alkyl carboxylic acids containing between 1 and 18 C atoms, acrylic acid esters or methacrylic acid esters of branched or unbranched alcohols containing between 1 and 15 C atoms, dienes, olefins, vinyl aromates and vinyl halogenides, optionally containing between 0.1 and 20 wt. % more of functional comonomer units from the group comprising carboxyl-functional, hydroxyl-functional and NH-functional, ethylenically unsaturated comonomers, are useful as additives to moldable starch compositions.Type: ApplicationFiled: March 11, 2004Publication date: November 23, 2006Applicant: Wacker Polymer Systems GmbH & Co. KGInventors: Henk Mosseveld, Konrad Wierer, Klaus Kohlhammer
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Publication number: 20060264572Abstract: Cationic polyvinyl acetals are prepared by copolymerizing one or more cationic N-alkyldiallylammonium salt monomers with one or more vinyl esters of branched or unbranched carboxylic acids having 1 to 15 carbon atoms, hydrolyzing the resulting copolymers to copolymers containing >50 mol % vinyl alcohol units, and acetalizating the vinyl alcohol units with one or more aliphatic aldehydes having 1 to 15 carbon atoms, their acetals, and/or hemiacetals, wherein the copolymerization takes place in a mixture of water and monovalent aliphatic alcohol having a water content of 2% to 35% by weight.Type: ApplicationFiled: May 9, 2006Publication date: November 23, 2006Applicant: Wacker Polymer Systems GmbH & Co. KGInventors: Abdulmajid Hashemzadeh, Bernhard Glaser