Patents by Inventor Janet L. Elias

Janet L. Elias 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).

  • Low compression set fluorosilicone rubber
    Patent number: 4882368
    Abstract: A fluorosilicone rubber with low compression set and other physical properties which are either are not significantly effected or are improved are made by curing a composition of a polydiorganosiloxane having 3,3,3-trifluoropropylsiloxane units and endblocked with vinyl or silacyclopentenyl groups, a reinforcing silica having dimethyl(3,3,3-trifluoropropyl)siloxy units as the surface treatment, and a vinyl specific organic peroxide. The polydiorganosiloxane endblocking is done by reacting a silanol endblocked polymer with a silazane.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: November 21, 1989
    Assignee: Dow Corning Corporation
    Inventors: Janet L. Elias, Chi-Long Lee, Myron T. Maxson
  • Treatment of reinforcing silica
    Patent number: 4116919
    Abstract: An improved treatment for reinforcing silica uses both a silazane represented by the formula (RR'R"Si).sub.2 NH and bis-Si-(1-methyl-1-silacyclopentenyl) amine as filler treatment. The filler treatment may be done either in situ during the manufacture of curable silicone elastomer compositions or as a separate operation. The treatment allows production of an easily extrudable composition with improved durometer and tear strength.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: September 26, 1978
    Assignee: Dow Corning Corporation
    Inventors: Janet L. Elias, Chi-Long Lee, Myron T. Maxson