Patents by Inventor F. Wallace Bailey

F. Wallace Bailey 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).

  • Chromium catalyst compositions and polymerization processes therewith
    Patent number: 5654249
    Abstract: Chromium catalyst compositions are provided. These chromium catalyst compositions comprise at least two chromium catalyst systems that have a certain amount of chromium and a support that comprises silica and titania. the supports have certain pore volumes and surface areas. These catalyst compositions are useful for homopolymerizing ethylene or copolymerizing ethylene with a comonomer. The resins produced are useful in film applications.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: August 5, 1997
    Assignee: Phillips Petroleum Company
    Inventors: Kent W. Rollmann, Elizabeth A. Benham, William M. Whitte, Max P. McDaniel, William R. Coutant, F. Wallace Bailey
  • Chromium catalyst compositions and polymerization processes therewith
    Patent number: 5508362
    Abstract: Chromium catalyst compositions are provided. These chromium catalyst compositions comprise at least two chromium catalyst systems that have a certain amount of chromium and a support that comprises silica and titania. the supports have certain pore volumes and surface areas. These catalyst compositions are useful for homopolymerizing ethylene or copolymerizing ethylene with a comonomer. The resins produced are useful in film applications.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: April 16, 1996
    Assignee: Phillips Petroleum Company
    Inventors: Kent W. Rollmann, Elizabeth A. Benham, William M. Whitte, Max P. McDaniel, William R. Coutant, F. Wallace Bailey
  • Twice-aged porous inorganic oxides, catalysts, and polymerization processes
    Patent number: 5115053
    Abstract: A silica-titania cogel or silica-titanic-chromium tergel is first aged at a substantially neutral pH, then aged at an alkaline pH, and then spray dried or azeotrope dried to form a xerogel. Optionally, a pore- preserving agent can be added prior to drying. The cogel can be impregnated with a chromium compound. The chromium-containing catalyst is activated by calcination. The activated catalyst can be used as a polymerization catalyst to polymerize mono-1-olefins.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: May 19, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Ronald D. Knudsen, Max P. McDaniel, Elizabeth A. Benham, F. Wallace Bailey
  • Twice-aged porous inorganic oxides, catalysts, and polymerization processes
    Patent number: 4981831
    Abstract: A silica-titania cogel or silica-titania-chromium tergel is first aged at a substantially neutral pH, then aged at an alkaline pH, and then spray dried or azeotrope dried to form a xerogel. Optionally, a pore-preserving agent can be added prior to drying. The cogel can be impregnated with a chromium compound. The chromium-containing catalyst is activated by calcination. The activated catalyst can be used as a polymerization catalyst to polymerize mono-1-olefins.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: January 1, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Ronald D. Knudsen, Max P. McDaniel, Elizabeth A. Boggs, F. Wallace Bailey