Patents by Inventor Dan Borgnaes

Dan Borgnaes 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).

  • Thermoset resinous molding compositions
    Patent number: 4855368
    Abstract: Thermoset resinous molding compositions are provided by essentially instantaneously combining and reacting three basic resin forming components. The latter include an oligomeric ester or polyester containing polymerizable unsaturation and free hydroxyl group(s); a polyisocyanate; and an aromatic polyamine. The indicated thermosetting resin systems are especially adapted for use in a reaction injection molding (RIM) operation.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: August 8, 1989
    Assignee: Ashland Oil, Inc.
    Inventors: Timothy A. Tufts, Dan Borgnaes, Billy M. Culbertson, Theodore C. Wilkinson
  • Thermosetting resinous molding compositions
    Patent number: 4374229
    Abstract: A thermosetting resinous composition characterized in constituting at least two oligomeric polyester segments terminally joined through a polyurethane residue and having end groups containing polymerizable unsaturation. Further disclosed are the thermoset products obtained by the addition polymerization of the aforesaid compositions in the presence or absence of a copolymerizable monomeric crosslinking agent. The resultant thermoset products are particularly useful in preparing molded articles.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: February 15, 1983
    Assignee: Ashland Oil, Inc.
    Inventors: William R. Dunnavant, Richard E. Field, Dan Borgnaes