Patents by Inventor Katja Strelzyk

Katja Strelzyk 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: 6423865
    Abstract: The invention relates to compounds with the general formula Y1—A1—M1—A2—Y2 wherein Y1 and Y2 are different from each other and Y1 is an acrylate or methacrylate residue and Y2 is a vinyl ether, epoxy, or azide residue, A1 and A2 are identical or different residues with the general formula CnH2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, and M1 has the general formula —R1—X1—R2—X2—R3—X3—R4— wherein R1, R2, R3, and R4 are identical or different doubly bonded residues from the group —O—, —COO—, —CONH—, —CO—, —S—, —C≡C—, —CH═CH—, —CH═N—, —CH2—, —N═N—, and —N═N(O)—, and R2—X2—R3 can also be a C—C bond, and X1, X2, and X3 are identical or different residues from the group 1,4-phenylene, 1,4-cyclohexylen
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: July 23, 2002
    Assignee: DaimlerChrysler AG
    Inventors: Peter Strohriegl, Katja Strelzyk, Andreas Stohr, Petra Grundig, Michael Gailberger, Fritz Dannenhauer, Anne Barth
  • Patent number: 6313326
    Abstract: The invention relates to compounds with the general formula Y1—A1—M1—A2—Y2 wherein Y1 and Y2 are different from each other and Y1 is an acrylate or methacrylate residue and Y2 is a vinyl ether, epoxy, or azide residue, A1 and A2 are identical or different residues with the general formula CnH2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, and M1 has the general formula —R1—X1—R2—X2—R3—X3—R4— wherein R1, R2, R3, and R4 are identical or different doubly bonded residues from the group —O—, —COO—, —CONH—, —CO—, —S—, —C≡C—, —CH═CH—, —CH═N—, —CH2—, —N═N—, and —N═N(O)—, and R2—X2—R3 can also be a C—C bond, and X1, X2, and X3 are identical or different residues from the group 1,4-phenylene, 1,4-cyclohexylen
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: November 6, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Peter Strohriegl, Katja Strelzyk, Andreas Stohr, Petra Grundig, Michael Gailberger, Fritz Dannenhauer, Anne Barth
  • Patent number: 6303050
    Abstract: A compound for use as a nematic phase in cholesteric liquid polymers of the general formula C—Am, and a production process.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: October 16, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Fritz Dannenhauer, Michael Gailberger, Karl Holdik, Katja Strelzyk, Kathrin Kuerschner, Andreas Stohr, Peter Strohriegl
  • Patent number: 6203736
    Abstract: The invention relates to platelet-shaped interference pigments for effect paints for painting objects of daily use, especially vehicle bodies, with the interference pigments including liquid crystal polymers (LCP) with main and/or side groups—mesogens—which are arranged at least approximately chirally-nematically or the like. In order to be able to paint different colored backgrounds in a covering fashion using the transparent interference pigments, the interference pigments are built up in several layers and also have at least one and preferably two interfering layer(s) of liquid crystal polymers and even of a single, preferably centrally located, light-absorbent layer, with the light-absorbent layer absorbing at least a portion of the visible light spectrum. Advantageously the light-absorbent layer can absorb light in the entire visible light spectrum, in other words appear black.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: March 20, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Michael Gailberger, Katja Strelzyk, Karl Holdik, Fritz Dannenhauer, Erik Grosse, Andreas Stohr
  • Patent number: 6049000
    Abstract: The invention relates to compounds with the general formula Y.sup.1 --A.sup.1 --M.sup.1 --A.sup.2 --Y.sup.2 whereinY.sup.1 and Y.sup.2 are different from each other and Y.sup.1 is an acrylate or methacrylate residue and Y.sup.2 is a vinyl ether, epoxy, or azide residue,A.sup.1 and A.sup.2 are identical or different residues with the general formula C.sub.n H.sub.2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, andM.sup.1 has the general formula --R.sup.1 --X.sup.1 --R.sup.2 --X.sup.2 --R.sup.3 --X.sup.3 --R.sup.4 -- whereinR.sup.1, R.sup.2, R.sup.3, and R.sup.4 are identical or different doubly bonded residues from the group --O--, --COO--, --CONH--, --CO--, --S--, --C.tbd.C--, --CH.dbd.CH--, --CH.dbd.N--, --CH.sub.2 --, --N.dbd.N--, and --N.dbd.N(O)--, and R.sup.2 --X.sup.2 --R.sup.3 can also be a C--C bond, andX.sup.1, X.sup.2, and X.sup.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: April 11, 2000
    Assignee: DaimlerChrysler AG
    Inventors: Peter Strohriegl, Katja Strelzyk, Andreas Stohr, Petra Grundig, Michael Gailberger, Fritz Dannenhauer, Anne Barth
  • Patent number: 5922465
    Abstract: The invention relates to platelet-shaped interference pigments for effect paints for painting objects of daily use, especially vehicle bodies, with the interference pigments including liquid crystal polymers (LCP) with main and/or side groups--mesogens--which are arranged at least approximately chirally-nematically or the like. In order to be able to paint different colored backgrounds in a covering fashion using the transparent interference pigments, the interference pigments are built up in several layers and also have at least one and preferably two interfering layer(s) of liquid crystal polymers and even of a single, preferably centrally located, light-absorbent layer, with the light-absorbent layer absorbing at least a portion of the visible light spectrum. Advantageously the light-absorbent layer can absorb light in the entire visible light spectrum, in other words appear black.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: July 13, 1999
    Assignee: Daimler-Benz AG
    Inventors: Michael Gailberger, Katja Strelzyk, Karl Holdik, Fritz Dannenhauer, Erik Grosse, Andreas Stohr