Patents by Inventor Bernard Costemalle

Bernard Costemalle 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).

  • Patent number: 5376438
    Abstract: The invention is a multilayer tire sidewall having an outer layer prepared from a blend of isomonoolefin/para-alkylstyrene copolymer and general purpose rubbers. The inner layer comprises general purpose rubber. The resulting sidewall exhibit good ozone resistance and fatigue crack resistance as well as a reduction in staining and discloration.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: December 27, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Bernard Costemalle, Douglas D. Flowers, James V. Fusco, Marcel Steurs
  • Patent number: 4136219
    Abstract: Polyurethane paint is applied with good adhesion to a vulcanized rubber surface composed of halogenated butyl rubber or blends thereof with natural rubber, SBR rubber, EPDM rubber, polybutadiene rubber, acrylonitrile butadiene rubber, polychlorophrene rubber, synthetic polyisoprene rubber, or chloro sulfonated polyethylene rubber, the blends containing at least 30 phr halogenated butyl rubber, the rubber having been cured using a metal oxide or halide and an alkyl phenol polysulfide accelerator.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: January 23, 1979
    Inventors: Norman E. Odam, Bernard Costemalle
  • Patent number: 3962018
    Abstract: A multilayer composition may be prepared by a process comprising applying an intimately mixed blend of a thermoplastic polyolefin and an elastomer to the surface of an elastomer and bonding said blend to said surface by heating and application of pressure. Thus a film of the intimately mixed blend may be applied to the surface of the elastomer.Also a motor-car door seal can be produced by extruding to the desired profile the intimately mixed blend of thermoplastic polyolefin and elastomer so as to form the base foot and bonding the elastomer seal to the extruded section.
    Type: Grant
    Filed: February 4, 1974
    Date of Patent: June 8, 1976
    Assignee: Exxon Research and Engineering Company
    Inventors: Bernard Costemalle, Arnold Cornelis VAN Ek