Patents by Inventor Günthern Link

Günthern Link 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).

  • Branched polyurethanes, formulations comprising them, and their use for thickening aqueous systems
    Patent number: 6861493
    Abstract: Branched polyurethanes which are preparable by reacting A) one or more aliphatic and/or aromatic isocyanates having a functionality of at least three with B) from 90.0 to 99.8 eq. % of one or more polyethers of the structure RO(SO)w(BO)x(PO)y(EO)zH ?and C) from 0.2 to 10.0 eq. % of at least one of the compounds from the following group: a. polyethers b. polyether polydimethylsiloxane diols c. polyester polydimethylsiloxane diols d. polydimethylsiloxane diols e. polydimethylsiloxane diamines f. polyether diamines.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: March 1, 2005
    Assignee: Goldschmidt AG
    Inventors: Sandra Bauer, Dirk Edelmann, Eberhard Esselborn, Markus Hoschke, Günthern Link, Stefan Silber