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).

  • Patent number: 7511107
    Abstract: 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: Grant
    Filed: November 12, 2003
    Date of Patent: March 31, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Fechtenkötter, Katrin Zeitz, Michael Ehle, Andreas Deckers, Wolfgang Kasel
  • Patent number: 7422735
    Abstract: 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: Grant
    Filed: June 26, 2000
    Date of Patent: September 9, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Hössel, Kristin Tiefensee, Axel Sanner, Reinhold Dieing, Michael Gotsche, Katrin Zeitz
  • Publication number: 20060193798
    Abstract: 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: Application
    Filed: May 2, 2006
    Publication date: August 31, 2006
    Inventors: Karl Kolter, Maximilian Angel, Katrin Zeitz
  • Patent number: 7094831
    Abstract: 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: Grant
    Filed: September 25, 2001
    Date of Patent: August 22, 2006
    Assignee: BASF Aktiengellsellschaft
    Inventors: Karl Kolter, Maximilian Angel, Katrin Zeitz
  • Patent number: 7094827
    Abstract: 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: Grant
    Filed: April 8, 2003
    Date of Patent: August 22, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Fechtenkötter, Lars Wittkowski, Katrin Zeitz, Michael Ehle, Siegfried Gast, Wolfgang Kasel, Andreas Deckers
  • Patent number: 7015294
    Abstract: 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: Grant
    Filed: November 9, 2001
    Date of Patent: March 21, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Wilma M. Dausch, Katrin Zeitz, Tanja Schneider, Maximilian Angel, Bernd de Potzolli, Claudia Wood
  • Publication number: 20050131131
    Abstract: 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: Application
    Filed: April 8, 2003
    Publication date: June 16, 2005
    Inventors: Andreas Fechtenkoetter, Lars Wittkowski, Katrin Zeitz, Michael Ehle, Siegfried Gast, Wolfgang Kasel, Andreas Deckers
  • Publication number: 20050032948
    Abstract: 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: Application
    Filed: August 24, 2004
    Publication date: February 10, 2005
    Inventors: Andreas Fechtenkotter, Katrin Zeitz, Michael Ehle, Andreas Deckers, Stefan Becker
  • Publication number: 20040097751
    Abstract: An ethylene terpolymer wax comprising
    Type: Application
    Filed: November 12, 2003
    Publication date: May 20, 2004
    Inventors: Andreas Fechtenkotter, Katrin Zeitz, Michael Ehle, Andreas Deckers, Wolfgang Kasel
  • Publication number: 20040057973
    Abstract: Cosmetic preparations comprising polyethylene waxes having improved organoleptic properties
    Type: Application
    Filed: June 23, 2003
    Publication date: March 25, 2004
    Inventors: Lars Wittkowski, Katrin Zeitz, Wilhelm Weber, Andreas Deckers
  • Publication number: 20040042994
    Abstract: 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: Application
    Filed: April 17, 2003
    Publication date: March 4, 2004
    Inventors: Wilma M. Dausch, Katrin Zeitz, Tanja Schneider, Maximilian Angel, Bernd de Potzolli, Claudia Wood
  • Patent number: 6682725
    Abstract: 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: Grant
    Filed: July 24, 1998
    Date of Patent: January 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Dieing, Peter Hössel, Stephan Kothrade, Axel Sanner, Katrin Zeitz, Hans-Jürgen Raubenheimer, Volker Schehlmann
  • Publication number: 20030187122
    Abstract: 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: Application
    Filed: March 25, 2003
    Publication date: October 2, 2003
    Inventors: Karl Kolter, Maximilian Angel, Katrin Zeitz
  • Patent number: 6538067
    Abstract: Interpolymer of a polymer of unsaturated olefinically monomers without carboxylic groups and a polymeric surface active agent.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: March 25, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Katrin Zeitz, Reinhold Dieing, Axel Sanner
  • Patent number: 6482917
    Abstract: 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: Grant
    Filed: January 2, 2001
    Date of Patent: November 19, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Hildebrandt, Reinhold Dieing, Katrin Zeitz
  • Patent number: 6403074
    Abstract: 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: Grant
    Filed: January 11, 2000
    Date of Patent: June 11, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Blankenburg, Reinhold Dieing, Wolfgang Müller, Axel Sanner, Volker Schehlmann, Katrin Zeitz
  • Patent number: 6133363
    Abstract: 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: Grant
    Filed: March 6, 1998
    Date of Patent: October 17, 2000
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Werner Jaeger, Arvid Zimmermann, Karl-Heinz Reichert, Katrin Zeitz
  • Patent number: 6066334
    Abstract: 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: Grant
    Filed: March 10, 1998
    Date of Patent: May 23, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Kolter, Kristin Tiefensee, Katrin Zeitz
  • Patent number: 6046277
    Abstract: 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: Grant
    Filed: March 10, 1998
    Date of Patent: April 4, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Kolter, Kristin Tiefensee, Reinhold Stadler, Katrin Zeitz