Patents by Inventor Axel Woocker

Axel Woocker 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: 7122599
    Abstract: The invention relates to coating compositions having anti-adhesion and dirt repellency properties, these compositions being admixed as additive with from 0.1 to 10% by weight, based on the solids content of the coating composition, of a branched polymer which possesses a weight-average molecular weight of from 2000 to 200,000 and comprises a polymeric base molecule and also polydiorganosiloxane side chains which are bonded covalently to the base molecule via Si—C bonds, have a weight-average molecular weight of between 1000 and 30,000, and whose fraction of the total weight of the branched polymer is from 5 to 25% by weight. The present invention further relates to polymeric moulding compounds having anti-adhesion and dirt repellency properties, to which this branched polymer is added as additive in an amount of from 0.1 to 10% by weight, based on the total weight of the polymeric moulding compounds.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: October 17, 2006
    Assignee: BYK-Chemie GmbH
    Inventors: Karlheinz Haubennestel, Alfred Bubat, Albert Frank, Axel Woocker, Udo Krappe
  • Patent number: 6617468
    Abstract: The invention relates to a process for preparing a solution which comprises urea urethanes and is effective as a thixotropic agent, which involves reacting at least two structurally different monohydroxy compounds with an excess of toluene diisocyanate to form monoisocyanate adducts, removing the unreacted portion of the toluene diisocyanate, and reacting the resultant monoisocyanate adducts with diamines in an aprotic solvent in the presence of a lithium salt to form urea urethanes. The invention also relates to the use of the solution to receive thixotropic coating compositions.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: September 9, 2003
    Assignee: BYK-Chemie GmbH
    Inventors: Karlheinz Haubennestel, Ulrich Orth, Axel Woocker, Heribert Holtkamp, Christoph Buchmann
  • Publication number: 20020115882
    Abstract: The invention relates to a process for preparing a solution which comprises urea urethanes and is effective as a thixotropic agent, which involves reacting at least two structurally different monohydroxy compounds with an excess of toluene diisocyanate to form monoisocyanate adducts, removing the unreacted portion of the toluene diisocyanate, and reacting the resultant monoisocyanate adducts with diamines in an aprotic solvent in the presence of a lithium salt to form urea urethanes. The invention also relates to the use of the solution to receive thixotropic coating compositions.
    Type: Application
    Filed: August 16, 2001
    Publication date: August 22, 2002
    Inventors: Karlheinz Haubennestel, Ulrich Orth, Axel Woocker, Heribert Holtkamp, Christoph Buchmann
  • Publication number: 20020103288
    Abstract: The invention relates to coating compositions having anti-adhesion and dirt repellency properties, these compositions being admixed as additive with from 0.1 to 10% by weight, based on the solids content of the coating composition, of a branched polymer which possesses a weight-average molecular weight of from 2000 to 200,000 and comprises a polymeric base molecule and also polydiorganosiloxane side chains which are bonded covalently to the base molecule via Si—C bonds, have a weight-average molecular weight of between 1000 and 30,000, and whose fraction of the total weight of the branched polymer is from 5 to 25% by weight. The present invention further relates to polymeric moulding compounds having anti-adhesion and dirt repellency properties, to which this branched polymer is added as additive in an amount of from 0.1 to 10% by weight, based on the total weight of the polymeric moulding compounds.
    Type: Application
    Filed: September 28, 2001
    Publication date: August 1, 2002
    Inventors: Karlheinz Haubennestel, Alfred Bubat, Albert Frank, Axel Woocker, Udo Krappe