Patents by Inventor Brian K. Conroy

Brian K. Conroy 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).

  • Process of polymerizing olefins in the presence of a chromium-containing catalyst
    Patent number: 5470926
    Abstract: Novel chromium-containing compounds, such as, for example, chromium pyrrolides, are prepared by forming a mixture of a chromium salt, a metal amide, and an electron pair donor solvent:, such as, for example, an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used either unsupported or supported on an inorganic oxide support to trimerize and/or polymerize olefins.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: November 28, 1995
    Assignee: Phillips Petroleum Company
    Inventors: William K. Reagen, Brian K. Conroy
  • Chromium compounds and uses thereof
    Patent number: 5331104
    Abstract: Novel chromium-containing compounds, such as, for example, chromium pyrrolides, are prepared by forming a mixture of a chromium salt, a metal amide, and an electron pair donor solvent, such as, for example, an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used either unsupported or supported on an inorganic oxide support to trimerize and/or polymerize olefins.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: July 19, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Willim K. Reagen, Brian K. Conroy
  • Chromium compounds and uses thereof
    Patent number: 5288823
    Abstract: Novel chromium-containing compounds, such as, for example, chromium pyrrolides, are prepared by forming a mixture of a chromium salt, a metal amide, and an electron pair donor solvent, such as, for example, an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used either unsupported or supported on an inorganic oxide support to trimerize and/or polymerize olefins.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: February 22, 1994
    Assignee: Phillips Petroleum Company
    Inventors: William K. Reagan, Brian K. Conroy
  • Olefin polymerization catalyst and process
    Patent number: 5245019
    Abstract: The compound (Cp*.sub.2 YCl).sub.2 wherein Cp* is pentamethylcyclopentadienyl and its preparation and use for the polymerization of olefins is disclosed.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: September 14, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Brian K. Conroy, Kenneth R. Farmer, Ted M. Pettijohn
  • Olefin polymerization catalyst and process
    Patent number: 5232999
    Abstract: The compound (Cp*.sub.2 YCl).sub.2 wherein Cp* is pentamethylcyclopentadienyl and its preparation and use for the polymerization of olefins is disclosed.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: August 3, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Brian K. Conroy, Kenneth R. Farmer, Ted M. Pettijohn
  • Chromium compounds and uses thereof
    Patent number: 5198563
    Abstract: Novel chromium-containing compounds, such as, for example, chromium pyrrolides, are prepared by forming a mixture of a chromium salt, a metal amide, and an electron pair donor solvent, such as, for example, an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used either unsupported or supported on an inorganic oxide support to trimerize and/or polymerize olefins.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: March 30, 1993
    Assignee: Phillips Petroleum Company
    Inventors: William K. Reagen, Brian K. Conroy
  • Olefin polymerization catalysts and processes
    Patent number: 5137997
    Abstract: Olefin polymerization catalysts, processes for preparing the catalysts and processes for producing polyolefins utilizing the catalysts are provided. The catalysts are basically comprised of a trialkylsilylamide-chromium complex adsorbed on an activated inorganic compound.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: August 11, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Brian K. Conroy, Paul D. Smith
  • Olefin polymerization catalysts and processes
    Patent number: 5104841
    Abstract: Olefin polymerization catalysts, processes for preparing the catalysts and processes for producing polyolefins utilizing the catalysts are provided. The catalysts are basically comprised of a trialkylsilylamide-chromium complex adsorbed on an activated inorganic refractory compound.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: April 14, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Brian K. Conroy, Paul D. Smith
  • Olefin polymerization
    Patent number: 5021379
    Abstract: A lanthanide base olefin polymerization catalyst and its use in polymerization are disclosed. The lanthanide based catalyst is prepared by contacting a lanthanide halide with an ether, then contacting the resulting lanthanide composition with an alkali or alkaline earth metal alkyl compound, and depositing the resulting lanthanide product on a particulate support.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: June 4, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Shirley J. Martin, Max P. McDaniel, Brian K. Conroy, Joel L. Martin