Patents by Inventor William Robert Haaf

William Robert Haaf 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, non-dripping compositions of polyphenylene ether and acrylonitrile-butadiene-styrene
    Patent number: 4107232
    Abstract: The present invention provides novel flame retardant, non-dripping thermoplastic molding compositions of polyphenylene ether resins or acrylonitrile-butadiene-styrene copolymers which include a flame retardant agent, and polytetrafluoroethylene.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: August 15, 1978
    Assignee: General Electric
    Inventors: William Robert Haaf, Donald Lewis Reinhard
  • Composition of a radial teleblock copolymer and a copolymer of a vinyl aromatic compound and an .alpha.,.beta. unsaturated cyclic anhydride
    Patent number: 4097550
    Abstract: Thermoplastic molding compositions are disclosed which comprise an intimate admixture of (i) a copolymer of a vinyl aromatic compound and an .alpha.,.beta.-unsaturated cyclic anhydride, including rubber-modified copolymers thereof, and (ii) a radial teleblock copolymer comprising a vinyl aromatic compound, a conjugated diene and a coupling agent. Optionally, the composition can also include a polyphenylene ether resin.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: June 27, 1978
    Assignee: General Electric Company
    Inventors: William Robert Haaf, Gim Fun Lee, Jr.