Patents by Inventor Eileen B. Walsh

Eileen B. Walsh 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).

  • Stabilization of low molecular weight polybutylene terephthalate/polyester blends with phosphorus compounds
    Patent number: 5589530
    Abstract: Blends of low molecular weight PBT resin and high molecular weight polyester resin, such as high molecular weight PBT resin, are imparted with excellent melt viscosity stability by the addition of certain phosphorus-containing compounds.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: December 31, 1996
    Assignee: General Electric Company
    Inventor: Eileen B. Walsh
  • Highly filled extruded thermoplastic compositions having a speckled surface appearance
    Patent number: 5510398
    Abstract: A highly filled, extruded thermoplastic material which has a smooth, uniform speckled surface without any secondary finishing operations. The thermoplastic material contains a polyalkylene terephthalate resin, a polycarbonate resin, a large quantity of a filler material, a stabilizer for the resin materials and a sufficient quantity of a non-dispersing pigment to give the extruded thermoplastic material a speckled surface appearance.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: April 23, 1996
    Assignee: General Electric Company
    Inventors: Angelika H. Clark, Eileen B. Walsh
  • High density polyester-polycarbonate molding composition
    Patent number: 5441997
    Abstract: A composition is disclosed which includes polybutylene terepthalate or polyethylene terephthalate, or blends of polybutylene terephthalate and polyethylene terephthalate, a polycarbonate, barium sulfate, strontium sulfate, zinc sulfate or zirconium oxide fillers, a phosphorus-containing stabilizer and optionally a styrene rubber impact modifier.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: August 15, 1995
    Assignee: General Electric Company
    Inventors: Eileen B. Walsh, Angelika H. Clark, Ronald D. Courson, Robert R. Gallucci
  • 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
  • Stabilization of low molecular weight of polybutylene terephthalate/polyester blends with phosphorus compounds
    Patent number: 5367011
    Abstract: Blends of low molecular weight PBT resin and high molecular weight polyester resin, such as high molecular weight PBT resin, are imparted with excellent melt viscosity stability by the addition of certain phosphorus-containing compounds.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: November 22, 1994
    Assignee: General Electric Company
    Inventor: Eileen B. Walsh