Patents by Inventor Stefan Gollnick

Stefan Gollnick 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).

  • Pigment concentrates containing dimerdiolalkoxylate additives, and methods of preparing same
    Patent number: 6312513
    Abstract: Pigment concentrates comprising a pigment, a liquid carrier medium and a dimerdiolalkoxylate, wherein a dimer portion of the dimerdiolalkoxylate comprises from about 36 to about 44 carbon atoms, and wherein the at least one dimerdiolalkoxylate has from about 1 to about 200 moles of alkylene oxide per mole of dimerdiol, are described in conjunction with methods of preparing the same.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: November 6, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Rainer Hoefer, Heinz-Guenther Schulte, Hans-Christian Raths, Harald Frommelius, Stefan Gollnick, Ulrich Pegelow
  • Use of diol alkoxylates as additives for the production of pigment concentrates
    Patent number: 6312514
    Abstract: Pigment concentrates comprising a pigment, a liquid carrier medium and a diol alkoxylate of the general formulae (I), (II) and/or (III) are described in conjunction with methods of preparing the same.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: November 6, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Heinz-Guenther Schulte, Rainer Hoefer, Hans-Christian Raths, Harald Frommelius, Stefan Gollnick