Patents by Inventor Ye-Gang Lin

Ye-Gang Lin 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).

  • Polyphenols as polycarbonate branching agents
    Patent number: 5948876
    Abstract: Branched polycarbonates are prepared by the reaction of a linear or branched polycarbonate with a branching resin having a molecular weight up to about 3,000, typically a novolak or a bisphenol polymer. The reaction preferably takes place in the presence of a carbonate equilibration catalyst such as a quaternary bisphenolate.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: September 7, 1999
    Assignee: General Electric Company
    Inventors: Raphael Mestanza, Patrick Joseph McCloskey, Theodorus Lambertus Hoeks, Adrianus Alphonsus Kusters, Pin-Pin Wu, Ye-Gang Lin
  • Complex stabilizer composition to improve the melt stability and color stability of polycarbonates
    Patent number: 5608027
    Abstract: A composition comprising a phosphorus containing acid and an ester of a phosphorus containing acid useful for imparting improved physical and chemical properties to polymers containing polyesters, copolyester carbonates, polycarbonates, and mixtures thereof, a method of treating said polymers with said composition, and articles of manufacture comprising said polymers and said composition.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: March 4, 1997
    Assignee: General Electric Company
    Inventors: Richard Crosby, James L. DeRudder, Larry I. Flowers, Ye-Gang Lin, Roy R. Odle