Patents by Inventor William J. Pentz

William J. Pentz 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).

  • 2,2'-Isopropylidine bis(tetrahydrofuran)
    Patent number: 4577035
    Abstract: The new composition of matter, 2,2'-isopropylidine bis(tetrahydrofuran) and method of preparation.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: March 18, 1986
    Inventors: George W. Huffman, William J. Pentz, David E. Vietti, Joseph P. Wuskell
  • Chemical compositions and methods
    Patent number: 4548752
    Abstract: Improved rigid urethane and isocyanurate foam compositions having improved fire resistance are described. The urethane foams are based on furan compositions and are chiefly made from adding propylene oxide to bis(hydroxymethyl)furan.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: October 22, 1985
    Assignee: QO Chemicals, Inc.
    Inventor: William J. Pentz
  • Polyurethanes or isocyanurates from alkoxylated hydroxymethylfuran
    Patent number: 4426460
    Abstract: Improved rigid urethane and isocyanurate foam compositions having improved fire resistance are described. The urethane foams are based on furan compositions having the formula: ##STR1## and from about 100% to about 500% of a stoichiometric amount of a reactive polyisocyanate to produce a foamable composition, and sufficient blowing agent to create a foam having a density from about 1.5 to about 5 pounds per cubic foot. The product has improved fire resistence. The disclosure also described the method of decreasing the flame hazard potential of a rigid foam by adding two urethane or isocyanurate foaming ingredients the appropriate amount of one or more of the compositions listed above. The polymers described are chiefly made from adding propelyne oxide to bis (hydroxymethyl) furan.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: January 17, 1984
    Assignee: Quaker Oats Company
    Inventor: William J. Pentz
  • Low fire hazard rigid urethane insulation foam, polyol mixtures used in the manufacture thereof, and method for manufacture thereof
    Patent number: 4318999
    Abstract: A low fire hazard rigid urethane insulation foam having high compressive strength and low friability is disclosed. Rigid foam products of this invention have a Class I flame hazard rating according to the ASTM E-84 Steiner tunnel test. The urethane foam contains a halogenated base polyol and a modifying amount of a 2,5-bis-(hydroxymethyl) furan component.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: March 9, 1982
    Assignee: The Quaker Oats Company
    Inventors: William R. Dunlop, William J. Pentz