Patents by Inventor Anke Oswald

Anke Oswald 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: 11060044
    Abstract: The present invention relates to a copolymer obtainable by copolymerization of (A) at least one unsaturated dicarboxylic acid or derivatives thereof, (B) at least one ?-olefin having from at least 6 up to and including 20 carbon atoms, (C) optionally at least one C3- to C20-alkyl ester of acrylic acid or methacrylic acid or a mixture of such alkyl esters and (D) optionally one or more further copolymerizable monomers other than monomers (A), (B) and (C), with a molar incorporation ratio of (A):(B):(C):(D) of 1:0.5 to 2.0:0 to less than 0.5:0 to 0.1 followed by the reaction with at least one dialkylamine (E), where the two alkyl radicals in the at least one dialkylamine (E) are independently alkyl radicals having at least 17 up to 30 carbon atoms.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: July 13, 2021
    Assignee: BASF SE
    Inventors: Irene Troetsch-Schaller, Ivette Garcia Castro, Michael Schroers, Uwe Rebholz, Dieter Faul, Anke Oswald
  • Publication number: 20200308501
    Abstract: The present invention relates to a copolymer obtainable by copolymerization of (A) at least one unsaturated dicarboxylic acid or derivatives thereof, (B) at least one ?-olefin having from at least 6 up to and including 20 carbon atoms, (C) optionally at least one C3- to C20-alkyl ester of acrylic acid or methacrylic acid or a mixture of such alkyl esters and (D) optionally one or more further copolymerizable monomers other than monomers (A), (B) and (C), with a molar incorporation ratio of (A):(B):(C):(D) of 1:0.5 to 2.0:0 to less than 0.5:0 to 0.1 followed by the reaction with at least one dialkylamine (E), where the two alkyl radicals in the at least one dialkylamine (E) are independently alkyl radicals having at least 17 up to 30 carbon atoms.
    Type: Application
    Filed: May 16, 2017
    Publication date: October 1, 2020
    Applicant: BASF SE
    Inventors: Irene TROETSCH-SCHALLER, Ivette GARCIA CASTRO, Michael SCHROERS, Uwe REBHOLZ, Dieter FAUL, Anke OSWALD
  • Patent number: 7119058
    Abstract: Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed by polymerization of a cyclic N-vinylamide of the general formula I where R is C1–C5-alkyl and R1 is hydrogen or C1–C4-alkyl, wherein said side chains (B) account for ?60% by weight of the total polymer.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: October 10, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Baum, Christine Mueller, Anke Oswald, Birgit Potthoff-Karl
  • Patent number: 7101836
    Abstract: Graft polymer, comprising (A) a polymer graft skeleton with no mono-ethylenic unsaturated units and (B) polymer sidechains formed from co-polymers of two different mono-ethylenic unsaturated monomers (B1) and (B2), each comprising a nitrogen-containing heterocycle, whereby the proportion of the sidechains (B) amounts to more than 55 wt. % of the total polymer.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: September 5, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Baum, Christine Mueller, Anke Oswald, Birgit Potthoff-Karl
  • Publication number: 20050171287
    Abstract: Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed from copolymers of two different monoethylenically unsaturated monomers (B1) and (B2) which each contain at least one nitrogeneous heterocycle, wherein said side chains (B) account for from 35 to 55% by weight of the total polymer.
    Type: Application
    Filed: November 11, 2002
    Publication date: August 4, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Pia Baum, Christine Muller, Anke Oswald, Birgit Potthoff-Karl
  • Publication number: 20050004322
    Abstract: Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed by polymerization of a cyclic N-vinylamide of the general formula I where R is C1-C5-alkyl and R1 is hydrogen or C1-C4-alkyl, wherein said side chains (B) account for ?60% by weight of the total polymer.
    Type: Application
    Filed: November 11, 2002
    Publication date: January 6, 2005
    Inventors: Pia Baum, Christine Muller, Anke Oswald, Birgit Potthoff-Karl
  • Publication number: 20040266655
    Abstract: Graft polymer, comprising (A) a polymer graft skeleton with no mono-ethylenic unsaturated units and (B) polymer sidechains formed from co-polymers of two different mono-ethylenic unsaturated monomers (B1) and (B2), each comprising a nitrogen-containing heterocycle, whereby the proportion of the sidechains (B) amounts to more than 55 wt. % of the total polymer.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 30, 2004
    Inventors: Pia Baum, Christine Muller, Anke Oswald, Birgit Potthoff-Karl