Patents by Inventor Bruce B. Hardman

Bruce B. Hardman 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).

  • Ester functional organopolysiloxane lubricants and process
    Patent number: 4378459
    Abstract: Organopolysiloxane lubricant compositions comprising a polysiloxane chain containing silicon-bonded hydrocarbon radicals and silicon-bonded ester radicals. The ester functional organopolysiloxanes are obtained by reacting an allyl ester, by Si-olefin addition, with an organohydrogenpolysiloxane in the presence of a platinum catalyst.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: March 29, 1983
    Assignee: General Electric Company
    Inventors: Bruce B. Hardman, Frank J. Traver
  • Self-bonding silicone rubber compositions
    Patent number: 4329273
    Abstract: A self-bonding silicone rubber composition comprising a vinyl-terminated polysiloxane polymer, a hydride siloxane cross-linking agent, a platinum catalyst and as the self-bonding additive, the partial hydrolysis product of an aliphatically unsaturated hydrolyzable alkoxy silane.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: May 11, 1982
    Assignee: General Electric Company
    Inventors: Bruce B. Hardman, George M. Dujack
  • Self-bonding silicone rubber compositions
    Patent number: 4311739
    Abstract: A self-bonding silicone rubber composition comprising a vinyl-terminated polysiloxane polymer, a hydride siloxane cross-linking agent, a platinum catalyst and as the self-bonding additive, the partial hydrolysis product of an aliphatically unsaturated hydrolyzable alkoxy silane.
    Type: Grant
    Filed: July 17, 1980
    Date of Patent: January 19, 1982
    Assignee: General Electric Company
    Inventors: Bruce B. Hardman, George M. Dujack