Patents Assigned to Houghton International, Inc.
  • Patent number: 6156228
    Abstract: The present invention relates to fire-resistant hydraulic fluids. More particularly, the invention relates to fire-resistant hydraulic fluid compositions comprising the combination of a trialkoxyalkyl-phosphate, a diluent selected from the group consisting of a natural triglyceride, a synthetic ester, and a polypropylene glycol, and a high molecular weight polymer.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: December 5, 2000
    Assignee: Houghton International, Inc.
    Inventors: Rosauro V. Holgado, Richard Adams, Chan Talaty
  • Patent number: 5633309
    Abstract: A creping adhesive containing about 1% to about 25% polyoxazoline by weight, which imparts softness and resistance to bleaching, to a cellulosic web, and methods of using same are provided.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: May 27, 1997
    Assignee: Houghton International, Inc.
    Inventors: Joseph F. Warchol, Cynthia D. Walton-Bongers
  • Patent number: 5602209
    Abstract: A creping adhesive containing about 1% to about 25% polyoxazoline by weight, which imparts softness and resistance to bleaching, to a cellulosic web, and methods of using same are provided.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: February 11, 1997
    Assignee: Houghton International, Inc.
    Inventors: Joseph E. Warchol, Cynthia D. Walton-Bongers