Patents by Inventor Don W. Godbehere

Don W. Godbehere 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).

  • Polyolefin polymerization process, method of producing catalyst, and catalyst
    Patent number: 5235011
    Abstract: A process for preparing a polymerization catalyst useful for the polymerization of olefins is provided comprising contacting a metal dihalide compound wherein the metal is selected from Group 2 and Group 12 of the Periodic Table and a transition metal compound which is a hydrocarbyloxide of a transition metal selected from Group 4 and Group 5 to form a first catalyst component; contacting the first catalyst component with at least one organoaluminum precipitating agent, wherein at least at the commencement of this step, the temperature at which such contacting is carried out is greater than about 70.degree. C. to about 150.degree. C. to form a solid product, and contacting the solid product with an activating agent to form a catalyst. Other aspects of the invention provide a catalyst prepared by the above described method and a polymerization process employing the thus prepared catalyst.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: August 10, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Kent E. Mitchell, David C. Miller, Don W. Godbehere, Gil R. Hawley
  • Continuous antimony pentoxide production
    Patent number: 5213785
    Abstract: This invention concerns an improved means of oxidizing aqueous dispersions of antimony trioxide to colloidal hydrous antimony pentoxide in a continuous flow system. The oxidant is hydrogen peroxide and the continuous flow system nominally consists of a static mixer and a tubular reactor.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: May 25, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Denton C. Fentress, Kent E. Mitchell, Don W. Godbehere, Larry S. Maddox, Richard E. Lowery, Howard F. Efner
  • Polyolefin polymerization catalyst and method of production use
    Patent number: 4988655
    Abstract: A catalyst useful in the polymerization of olefinic compounds and particularly 4-methyl-1-pentene is disclosed along with its method of preparation and use. The catalyst is prepared by (a) forming a first component by reacting reactants comprising a magnesium dihalide, a phenol, and alkylbenzoate, and a titanium tetrahydrocarbyloxide; (b) reacting the first component with an organoaluminum halide compound to produce a solid product; and (c) then contacting the resulting solid product with an activating liquid comprising titanium tetrachloride and trichlorosilane in a confined zone under pressure of at least 70 psi.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: January 29, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Kent E. Mitchell, Gil R. Hawley, Don W. Godbehere
  • Rapidly dispersible compositions of antimony pentoxide
    Patent number: 4804496
    Abstract: A process is disclosed for producing a powdered antimony pentoxide composition that rapidly disperses on contact with water. The process comprises spray drying the antimony sol at a temperature of from 180.degree. to 210.degree. F.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: February 14, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Richard E. Lowery, Denton C. Fentress, Don W. Godbehere