Patents by Inventor Paul R. Ginnings

Paul R. Ginnings 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).

  • Preparation of thermoplastic resin composition by solid state polymerization
    Patent number: 4778858
    Abstract: This invention relates to a process for preparing a thermoplastic resin composition through a solid state polymerization process. The thermoplastic resin composition made in accordance with this invention is particularly suitable for use in thermoforming thin walled articles. The process of this invention specifically comprises (1) melt blending a polyethylene terephthalate prepolymer with at least one liquid crystalline polymer to produce a polyethylene terephthalate/liquid crystalline polymer blend; and (2) solid state polymerizing said polyethylene terephthalate/liquid crystalline polymer blend at a temperature within the range of about 195.degree. C. to about 255.degree. C. for a period of at least about 1 hour to produce a thermoplastic resin composition. The subject invention also deals with thermoforming such thermoplastic resin compositions into articles, such as food trays, having a crystallinity within the range of about 10% to about 40%.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: October 18, 1988
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Paul R. Ginnings
  • High slip polyester films containing siloxane units
    Patent number: 4496704
    Abstract: This invention provides for novel linear thermoplastic block copolyesters derived from dicarboxylic acids or dialkyl esters thereof, alkylene glycols and dihydroxy terminated polydimethylsiloxane block copolymers. Films, tapes, sheeting and other extruded and molded articles prepared from said copolyesters exhibit improved clarity and improved nonsticking properties.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: January 29, 1985
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Paul R. Ginnings
  • Accelerated conditioning of silicone-modified polyester film to yield immediate high slip properties
    Patent number: 4452962
    Abstract: The invention provides for a process for inducing immediate high slip properties in a silicone modified, unorientated polyester. The process comprises heating the polyester film, article, etc., in a fluid at a temperature of from about 70.degree. C. to about 200.degree. C.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: June 5, 1984
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul R. Ginnings, Jack E. Prince
  • Linear block copolyesters having improved slip characteristics
    Patent number: 4348510
    Abstract: This invention provides for novel linear thermoplastic block copolyesters derived from dicarboxylic acids or dialkyl esters thereof, alkylene glycols and dihydroxy terminated polydimethylsiloxane block copolymers. Films, tapes, sheeting and other extruded and molded articles prepared from said copolyesters exhibit improved clarity and when tested in accordance with ASTM test method D-1894 exhibit improved nonsticking properties.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: September 7, 1982
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Max H. Keck, Paul R. Ginnings