Patents by Inventor Michael Gotsche

Michael Gotsche 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: 7465440
    Abstract: A process for preparing graft copolymers of polyvinyl esters by polymerization of a) at least one vinyl ester of aliphatic C1-C24-carboxylic acids in the presence of b) polyethers which are solid at room temperature and have the general formula I, c) and, where appropriate, at least one other monomer using a free-radical organic initiator system, wherein liquid polyalkylene glycol is used as solvent for the free-radical initiator system (feed).
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: December 16, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Maximilian Angel, Michael Gotsche, Karl Kolter
  • 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
  • Patent number: 7297205
    Abstract: The invention relates to the use of polyacrylic acids which contain organic terminal groups containing sulphur, comprising at least two carbon atoms, having an average molecular weight Mw of 5 000-30 000 g/mol and which are at least partially neutralized by a base which is selected from the group of alkali hydroxides and ammonia as auxiliary agents for wet grinding of calcium carbonate. The invention also relates to fine particle aqueous suspensions of calcium carbonate which are produced by wet grinding of calcium carbonate in the presence of said polyacrylic acids.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: November 20, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Kathrin Michl, Michael Gotsche, Jens Rieger, Kati Schmidt
  • Publication number: 20070004849
    Abstract: A process for pretreating cellulosic textile, which comprises the steps of: (a) treating cellulosic textile with a solution of polymer or copolymer obtainable by (a1) polymerization or copolymerization of N-vinylamide of the general formula I where R is selected from hydrogen and C1-C10-alkyl, and (a2) partial hydrolysis if appropriate, (b) optionally drying the treated textile, and (c) optionally saponifying all or some of the amide groups, wherein at least one of the steps (a2) and (c) is carried out.
    Type: Application
    Filed: September 24, 2004
    Publication date: January 4, 2007
    Inventors: Karl Siemensmeyer, Steffen Gibs, Frank Funke, Andreas Bastian, Michael Gotsche, Heinz Heissler, James Carnahan, Tanja Schneider, Holger Schopke, Stefan Frenzel
  • Publication number: 20060287423
    Abstract: The invention relates to the use of polyacrylic acids which contain organic terminal groups containing sulphur, comprising at least two carbon atoms, having an average molecular weight Mw of 5 000-30 000 g/mol and which are at least partially neutralized by a base which is selected from the group of alkali hydroxides and ammonia as auxiliary agents for wet grinding of calcium carbonate. The invention also relates to fine particle aqueous suspensions of calcium carbonate which are produced by wet grinding of calcium carbonate in the presence of said polyacrylic acids.
    Type: Application
    Filed: March 5, 2004
    Publication date: December 21, 2006
    Applicant: BASF Aktiengesellschaft
    Inventors: Kathrin Michl, Michael Gotsche, Jens Rieger, Kati Schmidt
  • Publication number: 20060254460
    Abstract: A solid, water-free and alkanol-free composite material comprises organic and/or inorganic water-insoluble particles or pigments in a mixture with at least one compound of the general formula (I) CnH2n+1O(A)x(B)yR??(I) where R is H, C1-6 alkyl or benzyl A is ethyleneoxy B is C3-10 alkyleneoxy or mixtures thereof, ?it being possible for groups A and B to be randomly distributed, alternating or in the form of two or more blocks in any order, n is an integer in the range from 4 to 8 x is a number in the range from 1 to 25 y is a number in the range from 0 to 10 and x+y is at least 1.
    Type: Application
    Filed: September 9, 2004
    Publication date: November 16, 2006
    Applicant: BASF Aktiengesellshaft
    Inventors: Ralf Noerenberg, Michael Gotsche, Hans-Peter Seelmann-Eggebert, Paul Klingelhofer
  • Publication number: 20060165639
    Abstract: The invention relates to the use of a cationic crosslinked polymer which is preparable by free-radical polymerization in the presence of salts and of protective colloids in cosmetics.
    Type: Application
    Filed: August 29, 2003
    Publication date: July 27, 2006
    Applicant: Basf Aktiengesellschaft
    Inventors: Werner Gauweiler, Ludger Wegmann, Marc Leduc, Lysander Chrisstoffels, Michael Gotsche, Claudia Wood
  • Publication number: 20060116470
    Abstract: A process for the production of water-soluble or water-swellable cationic polymers by (i) free-radically initiated copolymerization of monomer mixtures in water comprising (a) from 1 to 99% by weight of a cationic monomer or quaternizable monomer, (b) from 1 to 99% by weight of a water-soluble monomer, (c) from 0 to 10% by weight of a bi- or polyfunctional, free-radically copolymerizable monomer, adjusting the amounts (a) to (c) in such a way that the resulting polymer has an overall positive charge, in the presence of 1 to 100% of the amount of a salt which is necessary to saturate the reaction medium with said salt and in the presence of 0.1 to 20% by weight referred to the weight of the dispersion, of an amphoteric dispersant having an overall negative charge, and (ii) subsequent quaternization of the polymer if the monomer (a) employed is a non-quaternized monomer is disclosed.
    Type: Application
    Filed: August 29, 2003
    Publication date: June 1, 2006
    Inventors: Werner Gauweiler, Marc Leduc, Lysander Chrisstoffels, Michael Gotsche, Claudia Wood
  • Patent number: 6964774
    Abstract: The use of polymers obtainable by free-radical polymerization of a) at least one vinyl ester of C1–C24-carboxylic acids in the presence of b) polyether-containing compounds and c) optionally one or more other copolymerizable monomers and subsequent at least partial hydrolysis of the ester functions of the original monomers a), in hair cosmetic formulations.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: November 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Dieing, Michael Gotsche, Peter Hössel, Axel Sanner, Alfred Leinenbach, Keith Leslie Rutherford
  • Publication number: 20050090402
    Abstract: The present invention relates to the use of specific amphiphilic copolymers as synergistic adjuvant for agrotechnical applications. Suitable agrotechnical compositions are also described. Thus, the addition of such copolymers makes possible an accelerated uptake of active ingredients by the plant. The copolymers or salts thereof to be used comprise monomer units (i) based on at least one olefin and/or at least one vinyl ether, (ii) based on at least one ethylenically unsaturated dicarboxylic acid and/or at least one ethylenically unsaturated dicarboxylic acid derivative, and, optionally (iii) based on at least one further copolymerizable comonomer.
    Type: Application
    Filed: November 21, 2002
    Publication date: April 28, 2005
    Inventors: Reinhold Dieing, Lysander Chrisstoffels, Rainer Berghaus, Oskar Schmidt, Harald Kohle, Michael Gotsche, Reiner Kober
  • Patent number: 6864330
    Abstract: The invention relates to the use of graft copolymers obtained by radical graft copolymerisation of a) at least one open-chained N-vinylamide compound of general formula (I) wherein R1, R2, R3 represents H or C1-C6-alkyl and b) optionally, one or several other copolymerizeable monomers on a polymer graft base c) for cosmetic applications, with the proviso that if the polymer graft base is a compound containing polyether, the copolymerizeable polymer b) does not represent vinylester
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: March 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Tanja Schneider, Michael Gotsche, Anton Negele, Son Nguyen Kim, Stefan Frenzel, Claudia Wood
  • Publication number: 20040248741
    Abstract: Water-soluble or water-dispersible, film-forming graft copolymers obtainable by free-radical polymerization of
    Type: Application
    Filed: July 1, 2004
    Publication date: December 9, 2004
    Inventors: Michael Gotsche, Marcos Gomez, Tanja Schneider, Helmut Meffert, Karl-Heinrich Schneider
  • Patent number: 6783770
    Abstract: The present invention relates to hard capsules comprising (A) polymers obtainable by free-radical polymerization of a) at least one vinyl ester in the presence of b) polyether-containing compounds and c) where appropriate one or more other copolymerizable monomers c) and subsequent at least partial hydrolysis of the ester functions in the original monomers a), with the proviso that in the absence of another copolymerizable monomer c) the polyether-containing compound b) must have a number average molecular weight ≦10,000, (B) where appropriate structure-improving auxiliaries and (C) other conventional shell constituents, the production and use thereof.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: August 31, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Maximilian Angel, Karl Kolter, Axel Sanner, Michael Gotsche
  • Patent number: 6770293
    Abstract: The present invention relates to soft capsules comprising (a) polymers prepared by polymerization of vinyl esters in the presence of polyethers (b) where appropriate structure-improving auxiliaries and (c) where appropriate other conventional constituents, the use and production thereof.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: August 3, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Maximilian Angel, Karl Kolter, Axel Sanner, Michael Gotsche
  • Publication number: 20040033929
    Abstract: Use of water-soluble of water-dispersible, film-forming graft polymers obtainable by free-radical polymerization of
    Type: Application
    Filed: April 14, 2003
    Publication date: February 19, 2004
    Inventors: Werner Bertleff, Michael Gotsche, Karl Kolter, Alfred Leinenbach
  • Publication number: 20030224025
    Abstract: The use of polymers obtainable by free-radical polymerization of
    Type: Application
    Filed: February 20, 2003
    Publication date: December 4, 2003
    Inventors: Michael Gotsche, Claudia Wood, Reinhold Dieing, Axel Jentzsch
  • Publication number: 20030199642
    Abstract: The invention relates to the use of graft copolymers obtained by radical graft copolymerisation of a) at least one open-chained N-vinylamide compound of general formula (I) wherein R1, R2, R3 represents H or C1-C6-alkyl and b) optionally, one or several other copolymerizeable monomers on a polymergraft base c) for cosmetic applications, with the proviso that if the polymer graft base is compound containing polyether, the copolymerizeable polymer b) does not represent vinylester.
    Type: Application
    Filed: February 20, 2003
    Publication date: October 23, 2003
    Inventors: Tanja Schneider, Michael Gotsche, Anton Negele, Son Nguyen Kim, Stefan Frenzel, Claudia Wood
  • Publication number: 20030180245
    Abstract: The use of polymers obtainable by free-radical polymerization of
    Type: Application
    Filed: February 12, 2003
    Publication date: September 25, 2003
    Inventors: Michael Gotsche, Claudia Wood
  • Patent number: 6579953
    Abstract: The use of polymers which are obtainable by polymerization of a) at least one vinyl ester of aliphatic C1-C24-carboxylic acids in the presence of b) polyethers of the general formula I,  in which the variables have, independently of one another, the meanings mentioned in the description, as coating agent, binder and/or film-forming excipient in pharmaceutical presentations.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: June 17, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Gotsche, Karl Kolter, Axel Sanner, Maximilian Angel, Alfred Leinenbach
  • Patent number: 6444785
    Abstract: A process is provided for preparing W/O emulsions having crosslinked water-swollen polymers dispersed therein, by aftertreatment with a redox initiator system to reduce the residual monomer content.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: September 3, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Gotsche, Claudia Wood, Kristin Tiefensee