Patents by Inventor Thomas Feller

Thomas Feller 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).

  • Publication number: 20070167565
    Abstract: The invention relates to new, hydrolysis-stable, aqueous polyurethane-polyurea dispersions based on polyether-polycarbonate-polyols, to a process for preparing them and to their use in coating materials.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 19, 2007
    Inventors: Thorsten Rische, Thomas Feller, Holger Casselmann, Gerald Kurek, Steffen Hofacker
  • Publication number: 20070166552
    Abstract: The present invention provides coating agents made up of the reaction product of a) a polycarbonatediol component comprising a1) a polytetramethylene glycol-based polycarbonatediol with a molecular weight of between 400 and 8000, and a2) optionally other polyols with a molecular weight of from 200 to 8000, b) 0.5-2.0 mol per mol of a) of a chain extender selected from the group consisting of a low-molecular weight aliphatic or cycloaliphatic diol, a low-molecular weight aliphatic or cycloaliphatic diamine, and hydrazine, and c) 1.5-3.0 mol per mol of a) of an aliphatic, cycloaliphatic or aromatic diisocyanate, dissolved in d) 40-90 percent by weight (based on the total formulation) of an organic solvent selected from the group consisting of linear or cyclic esters, ketones, alcohols, aromatic compounds and mixtures thereof.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 19, 2007
    Inventors: Steffen Hofacker, Thomas Feller, Jurgen Kocher
  • Patent number: 7220814
    Abstract: The present invention relates to new hydrophilicized blocked polyisocyanates, a process for preparing them and their use.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: May 22, 2007
    Assignee: Bayer MaterialScience AG
    Inventors: Thorsten Rische, Christoph Gürtler, Karin Naujoks, Thomas Feller
  • Publication number: 20070083028
    Abstract: The present invention relates to new blocked polyurethane (PU) prepolymers free from elimination products, to a process for preparing them and to their use as a starting component in the production of polyurethane plastics and surface coatings.
    Type: Application
    Filed: October 5, 2006
    Publication date: April 12, 2007
    Inventors: Christoph Gurtler, Thomas Feller, Thomas Stingl
  • Publication number: 20070049684
    Abstract: The present invention relates to aqueous polyurethane-polyurea dispersions wherein the dispersions contain polyurethane-polyureas that are the reaction products of I) polyisocyanates having an isocyanate group functionality of ?2, II) a polymeric polyol component containing a) 50% to 100% by weight, based on the weight of polyol component II), of polyester polyols having a number average molecular weight Mn of 200 to 8000 g/mol and synthesized from a hydroxyl component and an acid component wherein 50% to 100% by weight, based on the total weight of the hydroxyl component used to prepare polyester polyols II.a), are diols corresponding to formula 1), wherein n is 1 and/or 2, and b) 0% to 50% by weight, based on the weight of polyol component II), of polymeric polyols other than polyester polyols a), and III) optionally other isocyanate-reactive compounds.
    Type: Application
    Filed: July 28, 2006
    Publication date: March 1, 2007
    Inventors: Thorsten Rische, Holger Casselmann, Thomas Feller, Harald Blum, Gerald Kurek
  • Patent number: 7176254
    Abstract: Novel sizing compositions, their preparation and use. The compositions contain water-dispersible and/or water-soluble and alkylamine-blocked polyisocyanates, film-forming resins, coupling agents and lubricants. The isocyanates are synthesized from at least one polyisocyanate, at least one ionic and/or potentially ionic and/or nonionic compound, and at least one blocking agent which is at least 20% by weight aralkylamines.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: February 13, 2007
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thorsten Rische, Karin Naujoks, Thomas Feller, Christoph Gürtler, Jan Mazanek
  • Publication number: 20060237682
    Abstract: The invention provides hydrolysis-stable size compositions based on polycarbonate polyols and polytetramethylene glycol polyols, their preparation and use.
    Type: Application
    Filed: April 17, 2006
    Publication date: October 26, 2006
    Inventors: Thorsten Rische, Gerald Kurek, Jurgen Meixner, Thomas Feller
  • Publication number: 20060189234
    Abstract: This invention relates to solutions of polyurethaneureas in ?-butyrolactone or mixtures of ?-butyrolactone with toxicologically acceptable organic solvents. A process for coating substrates using these polyurethaneurea solutions, and substrates coated by said process are also provided. The substrates coated according to the invention are preferably textile products or leather, but materials such as wood or concrete can also be coated according to the invention.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 24, 2006
    Inventors: Jurgen Kocher, Gerald Kurek, Holger Casselmann, Jurgen Urban, Thomas Feller
  • Patent number: 7091280
    Abstract: The present invention relates to a binder composition containing A) at least one aqueous polyurethane-polyurea dispersion and B) at least one stabilizer containing a) at least one amine having a structural unit corresponding to formula (I) ?which has no hydrazide groups, b) at least one compound having a structural unit corresponding to formula (II) —CO—NH—NH—??(II) ?and c) optionally a stabilizing compound other than a) and b). The polyurethane dispersions are manufactured in the presence of components a) and b). It is possible for components a) and b), depending on the grade used, to be incorporated into the polymer framework as structural units.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: August 15, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thorsten Rische, Karin Naujoks, Jürgen Meixner, Thomas Feller, Eberhard König
  • Publication number: 20060128885
    Abstract: The present invention relates to aqueous polyurethane-polyurea dispersions having two discrete maxima in the particle size distribution, wherein the maximum of the fine fraction is between 51 and 150 nm and the maximum of the coarse fraction is between 160 and 700 nm. The present invention also relates to a process for preparing the polyurethane-polyurea dispersions, to coating compositions containing these polyurethane-polyurea dispersions, and to coated substrates prepared from these coating compositions.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 15, 2006
    Inventors: Thorsten Rische, Gerald Kurek, Holger Casselmann, Thomas Feller, Thomas Munzmay, Detlef-Ingo Schutze, Harald Blum, Hans-Georg Muller
  • Publication number: 20060084775
    Abstract: The invention relates to aqueous coating material compositions stable to hydrolysis, to a process for preparing them and to their use as soft feel paint. The compositions comprise hydroxyl-free polyurethanes and/or polyurethane-ureas based on polycarbonate polyols and polytetramethylene glycol polyols, ionically modified, hydroxyl- and/or amino-containing polyurethanes and/or polyurethane-ureas and at least one crosslinker, and optionally further film-forming resins.
    Type: Application
    Filed: September 15, 2005
    Publication date: April 20, 2006
    Inventors: Thorsten Rische, Gerald Kurek, Jurgen Meixner, Torsten Pohl, Uwe Klippert, Thomas Feller
  • Patent number: 6960639
    Abstract: Aqueous coating compositions based on polyurethane dispersions which cure under the influence of high-energy radiation, to a process for preparing them and to their use. The coating compositions contain a polyisocyanate, a polyurethane containing free-radically polymerizable groups, and an initiator which is capable of initiating a free-radical polymerization.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: November 1, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jan Weikard, Erhard Lühmann, Christoph Irle, Thorsten Rische, Karin Naujoks, Thomas Feller, Jan Mazanek
  • Publication number: 20050182188
    Abstract: Coating compositions that are stable to thermal yellowing that include coating materials containing I) one or more dispersions of hydroxyl-free polyurethanes and/or polyurethane-ureas, II) one or more aqueous solutions or dispersions of ionically modified, hydroxyl-containing polyurethanes and/or polyurethane-ureas, other than the constituents of component I), and III) at least one crosslinker.
    Type: Application
    Filed: January 12, 2005
    Publication date: August 18, 2005
    Inventors: Thorsten Rische, Torsten Pohl, Jurgen Meixner, Uwe Klippert, Thomas Feller
  • Publication number: 20050159541
    Abstract: Size compositions that include one or more polyurethane-polyurea dispersions; optionally further film-forming resins; and optionally crosslinkers. The dispersions are obtained by preparing an NCO-containing polyurethane prepolymer by reacting polyisocyanates with polymeric polyols and/or polyamines, optionally low molecular weight compounds, isocyanate-reactive, ionically or potentially ionically hydrophilicizing compounds and/or isocyanate-reactive nonionically hydrophilicizing compounds, and optionally in inert solvents with the proviso that none of components contains primary or secondary amino groups; followed by either dissolving the prepolymer in aliphatic ketones or, diluting the prepolymer solution by further addition of aliphatic ketones; and reacting the remaining free NCO groups of the prepolymer with a chain extender component. The dispersions are used in mouldings and/or coatings that can be used to caot substrates, such as glass fibers.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 21, 2005
    Inventors: Thorsten Rische, Thomas Feller, Jurgen Meixner
  • Publication number: 20050159575
    Abstract: Aqueous polyurethane-polyurea dispersions, stabilized with respect to thermal yellowing, which have excellent mechanical properties and also to their preparation and use.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 21, 2005
    Inventors: Thorsten Rische, Jurgen Meixner, Torsten Pohl, Thomas Feller, Uwe Klippert
  • Publication number: 20040195731
    Abstract: A process for preparing glass fiber reinforced plastics using high-energy radiation. A sizing composition is applied to the glass fiber, and the curing mechanism of the sizing composition proceeds in a controlled way by the use of two crosslinking mechanisms which can be activated separately from one another. Aqueous UV-curing polyurethane dispersions containing few or no active hydrogen atoms are used in combination with water-dispersible or water-soluble blocked polyisocyanates.
    Type: Application
    Filed: June 10, 2003
    Publication date: October 7, 2004
    Inventors: Thorsten Rische, Jan Weikard, Thomas Feller, Erhard Luhmann, Karin Naujoks
  • Patent number: 6784243
    Abstract: The invention relates to polyurethane-polyurea dispersions, also called PU dispersion, which contain aralkylamine-blocked isocyanate groups, and to their preparation and use. This blocking agent ahs a significantly lower deblocking temperature as compared with the prior art. Coatings produced from this dispersion have high hydrolysis resistances. The arylamine-blocked isocyanate groups are composed of polyisocyanates, polymeric polyols having average molar weights of 400 to 6000, at least one blocking agent, and either or both of nonionically hydrophilicizing compounds or compounds having at least one ionic or potentially ionic group.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: August 31, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thorsten Rische, Karin Naujoks, Thomas Feller, Christoph Gürtler, Jan Mazanek
  • Publication number: 20040162387
    Abstract: The present invention relates to aqueous one-component (1K) coating systems based on non-isocyanate-reactive polyurethane dispersions (polyurethane dispersions which are not reactive towards isocyanate groups) and blocked, hydrophobic polyisocyanates and also to a process for their preparation and use.
    Type: Application
    Filed: February 11, 2004
    Publication date: August 19, 2004
    Inventors: Thorsten Rische, Martin Melchiors, Karin Naujoks, Thomas Feller, Jurgen Meixner
  • Publication number: 20040138403
    Abstract: The present invention relates to new hydrophilicized blocked polyisocyanates, a process for preparing them and their use.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 15, 2004
    Inventors: Thorsten Rische, Christoph Gurtler, Karin Naujoks, Thomas Feller
  • Publication number: 20040006152
    Abstract: Aqueous coating compositions based on polyurethane dispersions which cure under the influence of high-energy radiation, to a process for preparing them and to their use. The coating compositions contain a polyisocyanate, a polyurethane containing free-radically polymerizable groups, and an initiator which is capable of initiating a free-radical polymerization.
    Type: Application
    Filed: June 10, 2003
    Publication date: January 8, 2004
    Inventors: Jan Weikard, Erhard Luhmann, Christoph Irle, Thorsten Rische, Karin Naujoks, Thomas Feller, Jan Mazanek