Patents by Inventor Karl A. Karim

Karl A. Karim 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: 4659596
    Abstract: The present invention relates to a process for dulling molded block copolymer compositions comprising coating the surface of a molded block copolymer rubber composition with a dulling solution comprising a polymeric binder which is compatible with the molded block copolymer rubber composition, a matting agent and a suitable solvent and evaporating the solvent.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: April 21, 1987
    Assignee: Shell Oil Company
    Inventor: Karl A. Karim
  • Patent number: 4568575
    Abstract: The present invention relates to a process for dulling molded block copolymer compositions comprising coating the surface of a molded block copolymer rubber composition with a dulling solution comprising a miscible quaternary mixture of a polymeric binder which is compatible with the molded block copolymer rubber composition, an azeotroping agent, water and a suitable solvent and evaporating the solvent.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: February 4, 1986
    Assignee: Shell Oil Company
    Inventor: Karl A. Karim
  • Patent number: 4482428
    Abstract: The present invention relates to a process for dulling molded block copolymer compositions comprising contacting the surface of a molded block copolymer rubber composition with an etching solution of chromic acid optionally rinsing and drying.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: November 13, 1984
    Assignee: Shell Oil Company
    Inventor: Karl A. Karim