Patents Assigned to Burmah Castrol Trading, Ltd.
  • Perfluoropolyether compounds as magnetic media lubricants
    Patent number: 6559108
    Abstract: A recording medium comprising a phosphorus-containing fluorocarbon compound is provided. The phosphorus-containing fluorocarbon compound can be used as lubricant or as an additive to a lubricant. The phosphorus-containing fluorocarbon compound can be an esterified aryl phosphorus compound, a salt thereof, or combinations thereof.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: May 6, 2003
    Assignees: E.I. du Pont de Nemours and Company, Burmah Castrol Trading, Ltd.
    Inventors: Jon Lee Howell, David Gareth Vaughan Jones, Anthony Joseph Huffmann, Norm V. Gitis, Charles Gao