Patents by Inventor Donald L. Phipps, Jr.

Donald L. Phipps, Jr. 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).

  • Warp-resistant reinforced thermoplastic compositions comprising polyester resins, talc and silica
    Patent number: 4140669
    Abstract: Reinforced thermoplastic compositions are provided comprising a poly(1,4-butylene terephthalate) resin, a poly(ethylene terephthalate) resin, and a reinforcing, warp resisting combination of talc and silica. The compositions optionally include a segmented copolyester resin, a silicon polymer and/or a fibrous glass reinforcement. The compositions are moldable to articles having improved resistance to warpage during heat treatment in comparison with molding compositions of talc, (poly(1,4-butylene terephthalate) and poly(ethylene terephthalate).
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: February 20, 1979
    Assignee: General Electric Company
    Inventors: Donald L. Phipps, Jr., Allen D. Wambach
  • Reinforced thermoplastic polyester compositions having improved shatter resistance
    Patent number: 4124561
    Abstract: Reinforced thermoplastic compositions are provided which comprise a high molecular weight polyester and a mineral reinforcing filler comprising mica, talc or mixtures thereof in combination with a glass fiber reinforcement. The use of glass fibers together with the mineral reinforcement provides shatter resistance and further enhances other physical properties, such as tensile strength, modulus, impact strength and heat distortion temperature. Self-extinguishing embodiments are also disclosed.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: November 7, 1978
    Assignee: General Electric Company
    Inventors: Donald L. Phipps, Jr., Allen D. Wambach