Patents by Inventor Gary H. Williams

Gary H. Williams 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).

  • Gas phase polymerization process
    Patent number: 5453471
    Abstract: A process for producing polymers in a gas phase reactor by continuously introducing a stream of monomer and gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of at least one monomer present in said polymerization zone.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: September 26, 1995
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Robert J. N. Bernier, Robert L. Boysen, Robert C. Brown, Leonard S. Scarola, Gary H. Williams
  • Scorch resistant compositions based on water-curable thermoplastic polymers having hydrolyzable, pendant silane moieties, and organo titanates
    Patent number: 4598116
    Abstract: Scorch resistant compositions comprising thermoplastic polymers having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound and organo titanates, which are particularly useful as extrudates about wires and cables.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: July 1, 1986
    Assignee: Union Carbide Corporation
    Inventors: Michael J. Keogh, Gary H. Williams
  • Use of alkylaluminum compounds and hydroxyl-containing compounds to initiate polymerization of ethylene with chromium oxide catalysts
    Patent number: 4564660
    Abstract: A method for smoothly and reliably initiating polymerization of ethylene with a supported chromium oxide catalyst, with smaller amounts of catalyst and in substantially shorter periods of time then heretofore required, by adding an alkylaluminum compound and a hydroxyl-containing compound to the reactor of a polymerization reaction system prior to the commencement of polymerization and subjecting said alkylaluminum compound and hydroxyl-containing compound to suitable conditions of temperature and pressure for a time sufficient for said alkylaluminum compound to react completely with the moisture present in said reactor and said hydroxyl-containing compound.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: January 14, 1986
    Assignee: Union Carbide Corporation
    Inventors: Gary H. Williams, Frederick J. Karol
  • Direct conversion of a polymerization reaction catalyzed by a Ziegler-type catalyst into one catalyzed by a chromium-based catalyst
    Patent number: 4460755
    Abstract: A method of converting a continuous olefin polymerization reaction catalyzed by a Ziegler-type catalyst into one catalyzed by a chromium-based catalyst, without the need of emptying and recharging the polymerization reactor, by adding a hydroxyl-containing compound to the reactor containing the Ziegler-type catalyst to interact with such catalyst before the chromium-based catalyst is introduced into the reactor.
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: July 17, 1984
    Assignee: Union Carbide Corporation
    Inventors: Gary H. Williams, Frederick J. Karol