Patents by Inventor King L. Howe

King L. Howe 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).

  • Compatibilized blends of polyetherimides and liquid crystalline polyesters
    Patent number: 5633319
    Abstract: Non-delaminating resinous compositions are prepared by blending at least one polyetherimide, at least one liquid crystalline polyester in an amount to provide lower melt viscosity, and a compatibilizing amount of at least one polyepoxy compound. The compositions may also contain a minor proportion of at least one non-liquid crystalline polyester such as poly(ethylene terephthalate) or poly(ethylene 2,6-naphthalenedicarboxylate).
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: May 27, 1997
    Assignees: General Electric Company, E. I. Du pont de Nemours & Company
    Inventors: Norberto Silvi, Sterling B. Brown, Mark H. Giammattei, King L. Howe
  • Thermoplastic blow moldable polybutylene terephthalate compositions
    Patent number: 5128404
    Abstract: Semi-crystalline blow moldable polyester compositions formed by melt blending a mixture consisting essentially of a poly(butylene terephthalate, an ethylene copolymer containing epoxide groups, and an ionomer obtained by neutralizing with Na.sup.+ or K.sup.+.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: July 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: King L. Howe
  • Thermoplastic blow moldable polyester compositions
    Patent number: 5115012
    Abstract: Semi-crystalline blow moldable polyester compositions formed by melt blending a polyester, an ethylene copolymer containing epoxide groups, a methyl methacrylate copolymer containing epoxide groups, an ionomer obtained by neutralizing with Na+ or K+ and optionally another polyester.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: May 19, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: King L. Howe
  • Thermoplastic blow moldable polyethylene terephthalate compositions
    Patent number: 5091459
    Abstract: Semi-crystalline blow moldable polyester compositions, formed by melt blending a polyester, an ethylene copolymer containing epoxide groups, an ionomer obtained by neutralizing with Na+ or K+ and optionally a second polyester.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: February 25, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: King L. Howe
  • Blow molding polyester compositions
    Patent number: 4914156
    Abstract: A blow moldable composition of a polyether, an epoxide polymer, a source of catalytic cations, and a fibrillatable tetrafluoroethylene polymer.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: April 3, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: King L. Howe
  • Polyester compositions for blow molding
    Patent number: 4912167
    Abstract: A blow moldable composition of a polyester, an epoxide polymer and a source of catalytic cations.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: March 27, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward J. Deyrup, Edmund A. Flexman, Jr., King L. Howe