Patents by Inventor Ulrich R. Grigo

Ulrich R. Grigo 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).

  • Metal plated molded compositions containing polycarbonate and a certain ABS resin
    Patent number: 4847153
    Abstract: The invention concerns thermoplastic molding compositions comprising a blend of a polycarbonate resin, a conjugated diene graft polymer and an impact modifying agent characterized in that said conjugated diene graft polymer contains at least some .alpha.-methyl styrene which compositions combine improved impact strength and good HDT values.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: July 11, 1989
    Assignee: Mobay Corporation
    Inventors: Ulrich R. Grigo, Stuart L. Cohen
  • Polycarbonate blends having low gloss
    Patent number: 4677162
    Abstract: The present invention is directed to a thermoplastic molding composition comprising a blend of an aromatic polycarbonate, a graft copolymer and an impact modifier graft characterized by its properties wherein combined are low gloss and high impact strength.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: June 30, 1987
    Assignee: Mobay Corporation
    Inventors: Ulrich R. Grigo, Nelson R. Lazear, Mark W. Witman
  • Flame retardant molding compositions
    Patent number: 4673699
    Abstract: Novel molding compositions comprising a polycarbonate resin and the halogenated reaction product of phthalic anhydride and aniline are characterized in their improved flame resistance and are useful for the preparation of molded articles.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: June 16, 1987
    Assignee: Mobay Corporation
    Inventors: Sivaram Krishnan, Ulrich R. Grigo
  • Flame retarding silanes
    Patent number: 4578409
    Abstract: The present invention relates to a novel halogenated silane conforming to the structure ##STR1## where X is a halogen atom, n is an integer of from 1 to 4, p is an integer of from 1 to 9 and m is an integer of from 1 to 5. The silane thus disclosed was found to be particularly suitable as a flame retarding additive for thermoplastic molding compositions.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: March 25, 1986
    Assignee: Mobay Chemical Corporation
    Inventors: Sivaram Krishnan, Ulrich R. Grigo, Donald A. Folajtar
  • Polycarbonate ABS blends of improved impact strength
    Patent number: 4472554
    Abstract: A thermoplastic molding composition is described comprising a blend of a polycarbonate, a certain graft polymer and polymeric acidifying agent which composition is characterized by its improved stability and impact strength.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: September 18, 1984
    Assignee: Mobay Chemical Corporation
    Inventors: Ulrich R. Grigo, Nelson R. Lazear, Mark W. Witman