Patents by Inventor Chen-Shen Wang

Chen-Shen Wang 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).

  • Branched polyphenylene-polyphenylene sulfide blends
    Patent number: 4202951
    Abstract: Physical blends of branched polyphenylene and polyphenylene sulfide exhibit superior flexural strength and flexural modulus properties after high-temperature aging to either component alone.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: May 13, 1980
    Assignee: Standard Oil Company of Indiana
    Inventors: Chen-Shen Wang, Sandra K. Koster
  • Flame resistant, heat insulative foamed polyphenylenes
    Patent number: 4152494
    Abstract: A low density, flame-resistant foamed composition is formed by heating a thorough mixture of branched polyphenylene and an inorganic fiber to above about 800.degree. F.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: May 1, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventor: Chen-Shen Wang
  • Branched polyphenylene-mica composites
    Patent number: 4066604
    Abstract: A composite formed at relatively low temperature from branched polyphenylene and mica exhibits excellent mechanical properties after heat aging.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: January 3, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: Chen-Shen Wang
  • Process for forming branched nitropolyphenylene
    Patent number: 4059719
    Abstract: Solid aromatic polymers, such as branched polyphenylenes, are reacted with a reactive gas such as a NO.sub.2 -N.sub.2 O.sub.4 mixture, chlorine and sulfur trioxide without solvent or catalyst. The extent of reaction depends on reaction time and temperature and on the concentration of the reactive gas.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: November 22, 1977
    Assignee: Standard Oil Company (Indiana)
    Inventors: Eli W. Blaha, Sandra K. Koster, Chen-Shen Wang
  • Branched nitropolyphenylenes and compositions therefrom
    Patent number: 3974121
    Abstract: Branched nitropolyphenylene resins are disclosed which have a substantial degree of branching. Also disclosed is a polyphenylene resin mixture comprising branched nitropolyphenylenes and branched soluble polyphenylenes. This resin mixture is used to prepare asbestos, glass, carbon and graphite fiber composites.
    Type: Grant
    Filed: November 25, 1975
    Date of Patent: August 10, 1976
    Assignee: Standard Oil Company (Indiana)
    Inventor: Chen-Shen Wang
  • Graphite powder-polyphenylene mixtures and composites
    Patent number: 3971748
    Abstract: Moldable resin mixtures comprising branched soluble polyphenylenes and graphite powder are useful as plates in acid electrolytic fuel cells and in other applications.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: July 27, 1976
    Assignee: Standard Oil Company
    Inventors: Chen-Shen Wang, Eli W. Blaha