Patents Represented by Law Firm Williams, Phillips and Umphlett
  • Patent number: 4818800
    Abstract: A catalyst system useful for the polymerization of ethylene and other .alpha.-olefins comprising (a) a silica-supported chromium oxide catalyst and (b) a dihydrocarbylboron monohydrocarbyloxide adjuvant. The catalyst system results in .alpha.-olefin polymers having a broadened molecular weight distribution in the high molecular portion.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: April 4, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, James N. Short
  • Patent number: 4792481
    Abstract: A process to form a fiber-reinforced prepreg and shaped objects having a continuous thermoplastic matrix of poly(arylene sulfide ketone) resins is provided. The prepreg is useful to form composites with high temperature resistance. The prepreg is prepared by pultrusion of resin-impregnated fiber reinforcement through a shaped die. The reinforcement can be impregnated from a liquid slurry or resin particles and a wetting agent.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: December 20, 1988
    Assignee: Phillips Petroleum Company
    Inventors: James E. O'Connor, Jon F. Geibel, William H. Beever
  • Patent number: 4791086
    Abstract: A process for producing a novel-highly active lanthanide containing catalyst comprising the product produced by reacting a lanthanide hydride, a Lewis acid, and an electron donor ligand with an organoaluminum cocatalyst component and its use in the polymerization of olefins, especially olefins such as ethylene and 1,3-butadiene.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: December 13, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Gene H. C. Yeh, Henry L. Hsieh
  • Patent number: 4788171
    Abstract: Alumina is calcined and thereafter given a phosphating treatment. The resulting composition is particularly suitable for a support for a transition metal compound such as chromium oxide to provide an olefin polymerization catalyst. The resulting catalyst is capable of producing polymer at unusually high productivity rates and also gives the ability to produce high melt flow polymer.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: November 29, 1988
    Assignee: Philips Petroleum Company
    Inventor: Douglas D. Klendworth
  • Patent number: 4764574
    Abstract: In an inverse emulsion polymerization system for producing water-soluble polymers from a monomer system comprising an N-vinyl lactam and/or a vinyl-containing sulfonic acid or salt thereof utilizing a surfactant system having (1) a surfactant with a bulky lipophilic portion and an OH-containing hydrophilic portion and (2) a generally straight-chain nonionic surfactant having a lipophilic hydrocarbon group and an OH-terminated hydrophilic group, i.e. an alcohol. Such a system having both the right HLB and the right chemical combination results in a stable emulsion for the polymerization of these particular water-soluble monomers.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: August 16, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Earl Clark, Jr.
  • Patent number: 4749818
    Abstract: A process for the preparation of cis-9-tricosene is disclosed. Cis-1,9-octadecadiene, which may be obtained by the dehydration of oleyl alcohol, is metallated with an organomagnesium halide, producing cis-9-octadecenylmagnesium halide, which in turn is alkylated with n-pentyl halide to form the desired cis-9-tricosene.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: June 7, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Jim D. Byers, Charles A. Drake
  • Patent number: 4720557
    Abstract: Novel compositions comprising methanol and 1,3,5-trioxane, uses as slurry agents and/or fuels, and methods of synthesis of said compositions from gases containing carbon dioxide and light hydrocarbons are disclosed.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: January 19, 1988
    Assignee: Phillips Petroleum Company
    Inventor: J. Gordon Erdman