Patents by Inventor Katrin Zeitz
Katrin Zeitz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7511107Abstract: An ethylene terpolymer wax comprising from 40 to 95% by weight of units of ethylene, from 0.1 to 40% by weight of units of at least one anhydride of a C4-C10-dicarboxylic acid having at least one ethylenic C—C double bond, and from 0.1 to 40% by weight of units of at least one ester of the formula I where R1 is selected from hydrogen, C1-C10-alkyl, C3-C12-cycloalkyl or C6-C14-aryl and R2 is selected from C1-C10-alkyl, C3-C12-cycloalkyl or C6-C14-aryl, having a molecular weight Mw of up to 20000 g/mol.Type: GrantFiled: November 12, 2003Date of Patent: March 31, 2009Assignee: BASF AktiengesellschaftInventors: Andreas Fechtenkötter, Katrin Zeitz, Michael Ehle, Andreas Deckers, Wolfgang Kasel
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Patent number: 7422735Abstract: The invention relates to the use of at least one copolymer obtainable by (i) free-radically initiated copolymerization of a monomer mixture comprising (a) 1 to 99.99% by weight of at least one monomer chosen from N-vinylimidazoles and diallylamines optionally in partially or completely quaternized form; (b) 0 to 98.99% by weight of at least one neutral or basic water-soluble monomer which is different form (a); (c) 0 to 50% by weight of at least one unsaturated acid or unsaturated anhydride, (d) 0 to 50% by weight of at least one free-radically copolymerizable monomer which is different from (a), (b) or (c); and (e) 0.01 to 10% by weight of at least one monomer which acts as crosslinker and has at least two ethylenically unsaturated, nonconjugated double bonds; and (ii) subsequent partial or complete quaternization or protonation of the polymer in the case where the monomer (a) is unquaternized or only partially quaternized, as additive for skin cosmetic and dermatological preparations.Type: GrantFiled: June 26, 2000Date of Patent: September 9, 2008Assignee: BASF AktiengesellschaftInventors: Peter Hössel, Kristin Tiefensee, Axel Sanner, Reinhold Dieing, Michael Gotsche, Katrin Zeitz
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Publication number: 20060193798Abstract: An aqueous polymer dispersion prepared by free-radical polymerization of vinyl acetate in the presence of at least one ionic emulsifier, at least one free-radical initiator and at least one protective colloid, wherein the polymerization is carried out in the presence of a polymerization regulator and wherein the ratio by weight of protective colloid to ionic emulsifier is at least 4:1 and wherein the ratio by weight of vinyl acetate monomer to protective colloid is between 19:1 and 4:1.Type: ApplicationFiled: May 2, 2006Publication date: August 31, 2006Inventors: Karl Kolter, Maximilian Angel, Katrin Zeitz
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Patent number: 7094831Abstract: An aqueous polymer dispersion prepared by free-radical polymerization of vinyl acetate in the presence of at least one ionic emulsifier, at least one free-radical initiator and at least one protective colloid, wherein the polymerization is carried out in the presence of a polymerization regulator and wherein the ratio by weight of protective colloid to ionic emulsifier is at least 4:1 and wherein the ratio by weight of vinyl acetate monomer to protective colloid is between 19:1 and 4:1.Type: GrantFiled: September 25, 2001Date of Patent: August 22, 2006Assignee: BASF AktiengellsellschaftInventors: Karl Kolter, Maximilian Angel, Katrin Zeitz
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Patent number: 7094827Abstract: The invention relates to a method for producing thixotropic agents containing 0.1–30 wt.-% of at least one ethylene terpolymer wax, 5–7 wt.-% of at least one solvent, which is incompatible with the ethylene terpolymer wax, 5–85 wt.-% of of at least one solvent which is compatible with the ethylene terpolymer wax and with one or more of the first-named solvents.Type: GrantFiled: April 8, 2003Date of Patent: August 22, 2006Assignee: BASF AktiengesellschaftInventors: Andreas Fechtenkötter, Lars Wittkowski, Katrin Zeitz, Michael Ehle, Siegfried Gast, Wolfgang Kasel, Andreas Deckers
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Patent number: 7015294Abstract: The invention relates to acrylate polymers comprising a K-value ranging from 10 to 60, which can be obtained by the radical polymerization of: 30 to 99 wt. % of tert-butyl acrylate and/or tert-butyl methacrylate designated as monomer A; 1 to 28 wt. % of acrylic acid and/or methacrylic acid designated as monomer B, and; 0 to 60 wt. % of a radically copolymerizable monomer or of a radically copolymerizable monomer mixture designated as monomer C, whereby at least one of monomers C yields a homopolymer with a glass-transition temperature lower than 30° C., with the provision that the wt. %'s total 100. The radical polymerization is carried out in the presence of alkane thiols with a C chain length of C 14 to C 22. The invention also relates to acrylate polymers comprising a K-value ranging from 10 to 60, which can be obtained by the radical polymerization of: 30 to 99 wt. % of tert-butyl acrylate and/or tert-butyl methacrylate designated as monomer A; 1 to 28 wt.Type: GrantFiled: November 9, 2001Date of Patent: March 21, 2006Assignee: BASF AktiengesellschaftInventors: Wilma M. Dausch, Katrin Zeitz, Tanja Schneider, Maximilian Angel, Bernd de Potzolli, Claudia Wood
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Publication number: 20050131131Abstract: A process for preparing thixotropic agents comprising from 0.1 to 30% by weight of at least one ethylene terpolymer wax, from 5 to 70% by weight of at least one first solvent incompatible with the ethylene terpolymer wax, and from 5 to 85% by weight of at least one solvent compatible with the ethylene terpolymer wax and with said first solvent(s).Type: ApplicationFiled: April 8, 2003Publication date: June 16, 2005Inventors: Andreas Fechtenkoetter, Lars Wittkowski, Katrin Zeitz, Michael Ehle, Siegfried Gast, Wolfgang Kasel, Andreas Deckers
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Publication number: 20050032948Abstract: An ethylene terpolymer wax comprising, as monomer building blocks, from 35 to 95% by weight of ethylene, from 0.1 to 40% by weight of at least one ester of the formula I where R1 is selected from hydrogen, C1-C10-alkyl, C3-C12-cycloalkyl and C6-C14-aryl R2 are identical or different and are selected from hydrogen and C1-C10-alkyl, R3 is selected from C1-C10-alkyl, C3-C12-cycloalkyl and C6-C14-aryl and n is an integer from 2 to 100, and from 0.1 to 25% by weight of at least one carboxylic acid of the formula II where R4 is selected from hydrogen, C1-C10-alkyl, C3-C12-cycloalkyl and C6-C14-aryl.Type: ApplicationFiled: August 24, 2004Publication date: February 10, 2005Inventors: Andreas Fechtenkotter, Katrin Zeitz, Michael Ehle, Andreas Deckers, Stefan Becker
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Publication number: 20040097751Abstract: An ethylene terpolymer wax comprisingType: ApplicationFiled: November 12, 2003Publication date: May 20, 2004Inventors: Andreas Fechtenkotter, Katrin Zeitz, Michael Ehle, Andreas Deckers, Wolfgang Kasel
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Publication number: 20040057973Abstract: Cosmetic preparations comprising polyethylene waxes having improved organoleptic propertiesType: ApplicationFiled: June 23, 2003Publication date: March 25, 2004Inventors: Lars Wittkowski, Katrin Zeitz, Wilhelm Weber, Andreas Deckers
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Publication number: 20040042994Abstract: The invention relates to acrylate polymers comprising a K-value ranging from 10 to 60, which can be obtained by the radical polymerization of: 30 to 99 wt. % of tert-butyl acrylate and/or tert-butyl methacrylate designated as monomer A; 1 to 28 wt. % of acrylic acid and/or methacrylic acid designated as monomer B, and; 0 to 60 wt. % of a radically copolymerizable monomer or of a radically copolymerizable monomer mixture designated as monomer C, whereby at least one of monomers C yields a homopolymer with a glass-transition temperature lower than 30° C., with the provision that the wt. %'s total 100. The radical polymerization is carried out in the presence of alkane thiols with a C chain length of C 14 to C 22. The invention also relates to acrylate polymers comprising a K-value ranging from 10 to 60, which can be obtained by the radical polymerization of: 30 to 99 wt. % of tert-butyl acrylate and/or tert-butyl methacrylate designated as monomer A; 1 to 28 wt.Type: ApplicationFiled: April 17, 2003Publication date: March 4, 2004Inventors: Wilma M. Dausch, Katrin Zeitz, Tanja Schneider, Maximilian Angel, Bernd de Potzolli, Claudia Wood
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Patent number: 6682725Abstract: The disclosure is directed to a process of conditioning hair in which a cosmetic composition is applied to the hair, which composition contains a polymer formed by (i) the free-radically initiated copolymerization of monomer mixtures of (a) from 1 to 99.99% by weight of a cationic monomer or quaternizable monomer, (b) from 0 to 98.99% by weight of a water-soluble monomer, (c) from 0 to 50% by weight of a further free-radically copolymerizable monomer, and (d) from 0.01 to 10% by weight of a bifunctional or polyfunctional, free-radical copolymerizable monomer, and (ii) subsequent quaternization of the polymer if the monomer (a) is a non-quaternized monomer.Type: GrantFiled: July 24, 1998Date of Patent: January 27, 2004Assignee: BASF AktiengesellschaftInventors: Reinhold Dieing, Peter Hössel, Stephan Kothrade, Axel Sanner, Katrin Zeitz, Hans-Jürgen Raubenheimer, Volker Schehlmann
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Publication number: 20030187122Abstract: An aqueous polymer dispersion prepared by free-radical polymerization of vinyl acetate in the presence of at least one ionic emulsifier, at least one free-radical initiator and at least one protective colloid, wherein the polymerization is carried out in the presence of a polymerization regulator and wherein the ratio by weight of protective colloid to ionic emulsifier is at least 4:1 and wherein the ratio by weight of vinyl acetate monomer to protective colloid is between 19:1 and 4:1.Type: ApplicationFiled: March 25, 2003Publication date: October 2, 2003Inventors: Karl Kolter, Maximilian Angel, Katrin Zeitz
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Patent number: 6538067Abstract: Interpolymer of a polymer of unsaturated olefinically monomers without carboxylic groups and a polymeric surface active agent.Type: GrantFiled: August 9, 2001Date of Patent: March 25, 2003Assignee: BASF AktiengesellschaftInventors: Katrin Zeitz, Reinhold Dieing, Axel Sanner
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Patent number: 6482917Abstract: A process for the preparation of pulverulent, cationic, crosslinked polymers based on monoethylenically unsaturated monomers containing a quaternized or quaternizable nitrogen atom comprises carrying out the polymerization in supercritical carbon dioxide as inert diluent with mixing at from 31° C. to 150° C. and above 73 bar.Type: GrantFiled: January 2, 2001Date of Patent: November 19, 2002Assignee: BASF AktiengesellschaftInventors: Volker Hildebrandt, Reinhold Dieing, Katrin Zeitz
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Patent number: 6403074Abstract: Process for preparing polymers which are water-soluble or water-dispersible or which, if consisting of monomers with neutralizable radicals, are soluble in water or dispersible in water in neutralized form, by subjecting (a) ethylenically unsaturated monomers to free-radical polymerization in the presence of (b) polyalkylene oxide-containing silicone derivatives.Type: GrantFiled: January 11, 2000Date of Patent: June 11, 2002Assignee: BASF AktiengesellschaftInventors: Rainer Blankenburg, Reinhold Dieing, Wolfgang Müller, Axel Sanner, Volker Schehlmann, Katrin Zeitz
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Patent number: 6133363Abstract: The invention relates to a method of manufacturing dispersions of water-sble cationic vinyl polymers which can be used as process aids for separation processes, e.g. as flocculation aids, coagulation agents, retention agents or dehydration accelerators. The dispersions are produced by radical homopolymerization of cationic, hydrophobically modified vinyl monomers or their copolymerization with water-soluble vinyl monomers in aqueous saline solutions. In this respect block copolymers are used as dispersion stabilizers, and which are formed from a cationic vinyl monomer and ethyleneoxide.Type: GrantFiled: March 6, 1998Date of Patent: October 17, 2000Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Werner Jaeger, Arvid Zimmermann, Karl-Heinz Reichert, Katrin Zeitz
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Patent number: 6066334Abstract: Redispersible polymer powders or polymer granules consisting ofa) 10-95% by weight of polyvinyl acetate,b) 5-90% by weight of an N-vinylpyrrolidone-containing polymer,c) 0-20% by weight of another water-soluble or water-swellable substance andd) 0-20% by weight of a water-insoluble dusting agent with or withoute) other additives,are used as binders for producing solid pharmaceutical presentations, where the binder content in the presentation is from 0.5 to 20% by weight.Type: GrantFiled: March 10, 1998Date of Patent: May 23, 2000Assignee: BASF AktiengesellschaftInventors: Karl Kolter, Kristin Tiefensee, Katrin Zeitz
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Patent number: 6046277Abstract: The use of redispersible polymer powders or polymer granules for coating pharmaceutical or agrochemical use forms, consisting ofa) 10-95% by weight of polyvinyl acetate,b) 5-90% by weight of an N-vinylpyrrolidone-containing polymer,c) 0-20% by weight of another water-soluble or water-swellable substance andd) 0-20% by weight of a water-insoluble dusting agent with or withoute) other additives.Type: GrantFiled: March 10, 1998Date of Patent: April 4, 2000Assignee: BASF AktiengesellschaftInventors: Karl Kolter, Kristin Tiefensee, Reinhold Stadler, Katrin Zeitz