Patents Assigned to Kerr-McGee Chemical Corp.
  • Patent number: 5777001
    Abstract: The present invention provides modified particulate metal oxides having desired properties and methods of producing the metal oxides. The methods basically comprise the steps of reacting a particulate metal oxide in an aqueous solution or emulsion containing ceric ion to produce hydroxyl free radicals on the surfaces of the metal oxide and then reacting the metal oxide with a polymerizable vinyl monomer to graft the monomer to the metal oxide and polymerize the monomer. The graft polymerized metal oxide compositions produced have improved properties such as compatibility and ease of mixing with water based, oil based and plastics formulations.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: July 7, 1998
    Assignee: Kerr McGee Chemical Corp.
    Inventors: Charles E. Seeney, Tanna K. Watson
  • Patent number: 5759256
    Abstract: A rutile mixed metal oxide pigment can be prepared by calcining a rutile ore with a transition metal oxide. The rutile mixed oxide pigment can be dispersed in an emulsion to produce a paint or coating or the pigment can be combined with a network former and network modifier to produce a ceramic glaze.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: June 2, 1998
    Assignee: Kerr-McGee Chemical Corp.
    Inventor: Rodney D. Stramel
  • Patent number: 5702679
    Abstract: A continuous method of preparing a single phase lithiated manganese oxide intercalation compound of the formula Li.sub.1+x Mn.sub.2-x O.sub.4 comprising the steps of: mixing intimately a lithium hydroxide or a lithium salt and a manganese oxide or a manganese salt; feeding the intimately mixed salts to a reactor; continuously agitating the mixed salts in the reactor; heating the agitated mixed salts in the reactor at a temperature of from about 650.degree. C. to about 800.degree. C. for a time not in excess of about 4 hours in an oxygen-containing atmosphere; and cooling the reacted product to less than about 200.degree. C. in an oxygen-containing atmosphere for a time not in excess of about 2 hours.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: December 30, 1997
    Assignee: Kerr-McGee Chemical Corp.
    Inventors: Stephen W. Sheargold, Terrell N. Andersen