Patents by Inventor Klaus Pinske

Klaus Pinske 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).

  • Process for splitting polyurethanes
    Publication number: 20030009007
    Abstract: Polyurethane materials are recycled by a process that includes heating the polyurethane as a mixture with water and a solvent. The polyurethane is decomposed to yield a mixture that contains from 10-90% by weight of water and from 90-10% of solvent. The mixture is heated to above 180° C. to effect the decomposition reaction. The water/solvent mixtures are separated by distillation. The pressure of the reaction is at least 4 bar and the mole ratio of water to urethane bonds is at least 1.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 9, 2003
    Applicant: DEGUSSA AG
    Inventor: Klaus Pinske
  • 1,4-Diisocyanato-2,2,6-trimethylcyclohexane polyisocyanates containing isocyanurate groups, a process for the preparation and use
    Patent number: 6495650
    Abstract: The invention provides polyisocyanates containing isocyanate groups from 1,4-diisocyanato-2,2,6-trimethylcyclohexane, having a trimer fraction of more than 80% by weight and an NCO content of at least 19.3%.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: December 17, 2002
    Assignee: Degussa AG
    Inventors: Stephan Kohlstruk, Emmanouil Spyrou, Klaus Pinske
  • Process for preparing carbamatoorganosilanes and isocyanatoorganosilanes
    Patent number: 6388117
    Abstract: Processes for preparing carbamatoorganosilanes from aminoorganosilanes, ureas and alcohols. These compounds are useful for surface modification of inorganic and organic materials, as adhesion promoters between inorganic materials and organic polymers, as crosslinking agents for the moisture-curing of polymers, for PU sealants, in the coating and adhesive sector, and for the production of biologically active products, such as insecticides and herbicides.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: May 14, 2002
    Assignee: Degussa AG
    Inventor: Klaus Pinske
  • PROCESS FOR PREPARING CARBAMATOORGANOSILANES AND ISOCYANATOORGANOSILANES
    Publication number: 20020016486
    Abstract: Processes for preparing carbamatoorganosilanes from aminoorganosilanes, ureas and alcohols. These compounds are useful for surface modification of inorganic and organic materials, as adhesion promoters between inorganic materials and organic polymers, as crosslinking agents for the moisture-curing of polymers, for PU sealants, in the coating and adhesive sector, and for the production of biologically active products, such as insecticides and herbicides.
    Type: Application
    Filed: December 14, 1999
    Publication date: February 7, 2002
    Inventor: KLAUS PINSKE
  • Iisocyanato-2,2,6-trimethylcyclohexane polyisocyanates containing
    Publication number: 20010027243
    Abstract: The invention provides polyisocyanates containing isocyanate groups from 1,4-diisocyanato-2,2,6-trimethylcyclohexane, having a trimer fraction of more than 80% by weight and an NCO content of at least 19.3%.
    Type: Application
    Filed: March 29, 2001
    Publication date: October 4, 2001
    Applicant: Degussa AG
    Inventors: Stephan Kohlstruk, Emmanouil Spyrou, Klaus Pinske