Patents by Inventor Christoph Kayser

Christoph Kayser 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: 6833419
    Abstract: The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, B) optionally, one or more other olefinically unsaturated, optionally crosslinking, comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol, and C) one or more at least monofunctional, fluorine-containing components capable of free-radical polymerization, the copolymerization D) taking place in the presence or absence of at least one polymeric additive having number-average molecular weights of from 200 g/mol to 109 g/mol. The water-soluble or water-swellable copolymers of the present invention are useful in paper processing, laundry detergents, textile processing, petroleum extraction and formulating cosmetics.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: December 21, 2004
    Assignee: Clariant GmbH
    Inventors: Roman Morschhäuser, Christoph Kayser, Matthias L{hacek over (o)}ffler
  • Publication number: 20040244975
    Abstract: A method for reducing or completely eliminating water influx in an oil or natural gas borehole includes introducing in the borehole an aqueous solution of a copolymer comprising: A) 40-98 wt. % of structural units of formula (I), wherein: R1 is hydrogen or methyl; R2 represents C2-C10 alkylene; and Me+ represents an ammonium metal ion and an alkali metal ion; B) 0.1 to 58 wt. % of structural units of formula (II); C) 0.1 to 10 wt. % of structural units of formula (III), wherein: R3 and R4 independently of each other represent hydrogen, methyl or ethyl, or R3 and R4 represent together a propylene group, which, with inclusion of a radical (A), form a pyrrolidon radical or, with inclusion of a pentamethylene group, forms a caprolactam radical; D) 0.10 to 10 wt % of structural units of formula (IV). The method also includes introducing in the ground or deposit, simultaneously with the copolymer or subsequently, an agent for crosslinking the copolymer.
    Type: Application
    Filed: April 6, 2004
    Publication date: December 9, 2004
    Inventors: Karl Heinz Heier, Christoph Kayser, Aranka Tardi, Michael Schaefer, Roman Morschhaeuser, James Morgan, Alistair M Gunn
  • Publication number: 20040167304
    Abstract: The invention provides water-soluble or water-swellable copolymers obtainable by free-radical copolymerization of
    Type: Application
    Filed: November 10, 2003
    Publication date: August 26, 2004
    Inventors: Roman Morschhauser, Jan Glauder, Matthias Loffler, Christoph Kayser, Aranka Tardi
  • Publication number: 20040141937
    Abstract: Surfactant-containing cosmetic, dermatological and pharmaceutical agents The invention provides surfactant-containing cosmetic, dermatological, and pharmaceutical agents comprising at-least one water-soluble or water-swellable copolymer obtainable by free-radical copolymerization of
    Type: Application
    Filed: December 19, 2003
    Publication date: July 22, 2004
    Inventors: Matthias Loffler, Roman Morschhauser, Christoph Kayser
  • Publication number: 20040116634
    Abstract: Fluorine-modified comb polymers based on acryloyldimethyltaurine The invention provides water-soluble or water-swellable copolymers obtainable by free-radical copolymerization of
    Type: Application
    Filed: November 24, 2003
    Publication date: June 17, 2004
    Inventors: Roman Morschhaeuser, Christoph Kayser, Matthias Loffler
  • Publication number: 20040109838
    Abstract: Compositions comprising copolymers based on acryloyldimethyltaurine and synergistic additives
    Type: Application
    Filed: November 24, 2003
    Publication date: June 10, 2004
    Inventors: Roman Morschhuser, Christoph Kayser, Matthias Lffler, Karl Heinz Heier, Aranka Tardi, Manfred Schade, Gernold Botthof
  • Publication number: 20040058847
    Abstract: The present invention relates to liquid washing, cleaning, disinfecting bleaching compositions comprising amphiphilic copolymers which include structural units derived from
    Type: Application
    Filed: September 19, 2003
    Publication date: March 25, 2004
    Applicant: Clariant GmbH
    Inventors: Roman Morschhauser, Matthias Loffler, Christoph Kayser, Johannes Himmrich, Aranka Tardi, Sebastiano Lo Vasco, Carsten Muller
  • Publication number: 20040030206
    Abstract: The invention relates to the use of polymers which contain between 1 and 99 mol-% structural units of formula 1, 1
    Type: Application
    Filed: May 23, 2003
    Publication date: February 12, 2004
    Inventors: Uwe Dahlmann, Michael Feustel, Christoph Kayser, Roman Morschhaeuser
  • Patent number: 6395853
    Abstract: The invention relates to copolymers comprising a) 5-95% by weight of structural units which are derived from compounds of the formula 1 b) from 1 to 95% by weight of structural units which are derived from compounds of the formula 2  and c1) from 1 to 95% by weight of structural units which are derived from compounds of the formula 3  or, alternatively, to c1), c2) from 1 to 95% by weight of structural units which are derived from compounds of the formula 4  n which X is a cation. The copolymers according to the invention are suitable as a fluid loss additive for water-based drilling muds and for cement slurries in deep wells, for completion and clearing-out liquids and for water shut-off in production probes.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 28, 2002
    Assignee: Clariant GmbH
    Inventors: Reinhard J. Oswald, Roman Morschhäuser, Karl Heinz Heier, Aranka Tardi, Juergen Tonhauser, Christoph Kayser, Dan Patterson