Patents by Inventor John S. Trent

John S. Trent 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).

  • Polyphenylene ether-polyamide copolymers from epoxytriazine-capped polyphenylene ethers
    Patent number: 5041504
    Abstract: Copolymer-containing compositions are prepared by the reaction of an epoxytriazine-capped polyphenylene ether with another polymer containing amine end groups, especially a polyamide, under intimate blending conditions. The compositions have excellent properties and find utility as molding compositions and as compatibilizers for blends of similar polymers. Suitable epoxytriazine-capped polyphenylene ethers may be prepared by reaction of a polyphenylene ether with an epoxychlorotriazine such as diglycidyl chlorocyanurate, n-butyl glycidyl chlorocyanurate or mesityl glycidyl chlorocyanurate.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: August 20, 1991
    Assignee: General Electric Company
    Inventors: Sterling B. Brown, John S. Trent, Joseph C. Golba, Jr., Richard C. Lowry
  • In-mold polymerization of vinyl aromatic compound
    Patent number: 4666987
    Abstract: A process for in mold polymerization and a composition for use therein comprising a polymerizable vinyl aromatic monomer and a particulated, semicrystalline nonmiscible polymer.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: May 19, 1987
    Assignee: The Dow Chemical Company
    Inventors: Alan F. Burmester, John S. Trent