Patents by Inventor Joel D. Allen

Joel D. Allen 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).

  • Highly dense thermoplastic molding compositions
    Patent number: 5399608
    Abstract: Compositions comprising a high molecular weight polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid or mixture of such resins and, optionally, a second linear high molecular weight polyester, optionally further combined with an effective, impact strength-improving amount of a thermoplastic elastomer, such as a polyether ester or a polyetherimide ester, with relatively high loadings of fillers selected from zinc oxide, barium sulfate, zirconium oxide, zirconium silicate, strontium sulfate or a mixture of any of such fillers, provide highly dense thermoplastic molded articles with improved impact strength and properties suitable to replace ceramics and filled thermosets in many important applications.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: March 21, 1995
    Assignee: General Electric Company
    Inventors: Joel D. Allen, Dennis W. Champlain, Lawrence R. Wallace, Eileen B. Walsh
  • Highly dense thermoplastic molding compositions
    Patent number: 5395875
    Abstract: Compositions comprising copolyetherester resins, copolyetherimide ester resins, or mixtures thereof, in combination with a high molecular weight polyester resin or mixture of such resins, with relatively high loadings of fillers selected from zinc oxide, barium sulfate, zirconium oxide, zirconium silicate, strontium sulfate or a mixture of any of such fillers, provide highly dense thermoplastic molded articles with properties suitable to replace ceramics and filled thermosets in many important applications.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: March 7, 1995
    Assignee: General Electric Company
    Inventors: Joel D. Allen, Dennis W. Champlain, Richard J. Clark, Lawrence R. Wallace
  • Highly dense thermoplastic molding compositions
    Patent number: 5214088
    Abstract: Compositions comprising copolyetherester resins, copolyetherimide ester resins, or mixtures thereof, in combination with a high molecular weight polyester resin or mixture of such resins, with relatively high loadings of fillers selected from zinc oxide, barium sulfate, zirconium oxide, zirconium silicate, strontium sulfate or a mixture of any of such fillers, provide highly dense thermoplastic molded articles with properties suitable to replace ceramics and filled thermosets in many important applications.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: May 25, 1993
    Assignee: General Electric Company
    Inventors: Joel D. Allen, Dennis W. Champlain, Richard J. Clark, Lawrence R. Wallace