Patents by Inventor Petra Grundig

Petra Grundig 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: 6537341
    Abstract: A process for recycling composite materials that comprise fibers and a matrix includes exposing the composite material to electromagnetic waves in the form of microwaves. The electromagnetic waves induce an introduction of energy into the composite material, leading to a separation of fibers and matrix. The separation operation can be assisted by a suitable solvent.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: March 25, 2003
    Assignee: DaimlerChrysler AG
    Inventors: Fritz Dannenhauer, Petra Grundig, Maria-Theresia Sailer
  • 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
  • Publication number: 20020017162
    Abstract: A process for recycling composite materials that comprise fibers and a matrix includes exposing the composite material to electromagnetic waves in the form of microwaves. The electromagnetic waves induce an introduction of energy into the composite material, leading to a separation of fibers and matrix. The separation operation can be assisted by a suitable solvent.
    Type: Application
    Filed: May 30, 2001
    Publication date: February 14, 2002
    Inventors: Fritz Dannenhauer, Petra Grundig, Maria-Theresia Sailer
  • 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: 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