Patents by Inventor James J. Ziegelmeyer

James J. Ziegelmeyer 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).

  • Flame retardant blends of polycarbonate, ABS and a polyalkylmethacrylate having increased weld line strength
    Patent number: 5292786
    Abstract: Flame retardant polymer blend compositions exhibiting increased weld line strength comprise a polycarbonate polymer, an ABS resin, a phosphate flame retardant compound and a polyalkylmethacrylate. Preferred polyalkylmethacrylates comprise polymethylmethacrylate homopolymer and copolymers thereof with at least one C.sub.l -C.sub.4 alkyl acrylate.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: March 8, 1994
    Assignee: General Electric Company
    Inventors: Satish K. Gaggar, James J. Ziegelmeyer
  • Flame retardant blends of polycarbonate, ABS and a terpolymer
    Patent number: 5036126
    Abstract: Flame retardant polymer blend compositions comprise a polycarbonate polymer, an ABS resin, a phosphate ester flame retardant and a terpolymer formed from an aryl brominated monovinylic aromatic monomer, an ethylenically unsaturated nitrile monomer, and an alkyl methacrylate monomer in which the alkyl group has from 1 to 4 carbon atoms. A preferred terpolymer comprises a dibromostyrene-acrylonitrile-methyl methacrylate terpolymer.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: July 30, 1991
    Assignee: General Electric Company
    Inventors: Michael K. Rinehart, James J. Ziegelmeyer