Patents by Inventor Liv Randewig

Liv Randewig 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: 8940389
    Abstract: The present invention relates to a composition which contains a) at least one reaction product of a1) a silane of the general formula in which Y(1)=3-glycidyloxypropyl-, and R1, R2, R3=like or unlike alkyl groups having 1 to 6 carbon atoms, and a2) a silane of the general formula in which Y(2)=N-2-aminoethyl-3-aminopropyl- or NH2(CH2)2NH(CH2)2NH(CH)3, and R?1, R?2, R?3=like or unlike alkyl groups having 1 to 6 carbon atoms, and b) at least one inorganic filler, and c) a solvent having a boiling point at a temperature ?85° C., and d) water, and e) a catalyst selected from organic and inorganic acids, to a method of producing a surface coating on a polymeric surface by applying the composition of the invention, and to articles having at least one polymeric surface which have the surface coating of the invention, and to their use.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: January 27, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Heike Bergandt, Liv Randewig, Marie-Theres Wilkes
  • Publication number: 20090162631
    Abstract: The present invention relates to a composition which contains a) at least one reaction product of a1) a silane of the general formula in which Y(1)=3-glycidyloxypropyl-, and R1, R2, R3=like or unlike alkyl groups having 1 to 6 carbon atoms, and a2) a silane of the general formula in which Y(2)=N-2-aminoethyl-3-aminopropyl- or NH2 (CH2)2NH(CH2)2NH(CH)3, and R?1, R?2, R?3=like or unlike alkyl groups having 1 to 6 carbon atoms, and b) at least one inorganic filler, and c) a solvent having a boiling point at a temperature ?85° C., and d) water, and e) a catalyst selected from organic and inorganic acids, to a method of producing a surface coating on a polymeric surface by applying the composition of the invention, and to articles having at least one polymeric surface which have the surface coating of the invention, and to their use.
    Type: Application
    Filed: May 9, 2007
    Publication date: June 25, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Heike Bergandt, Liv Randewig, Marie-Theres Wilkes