Patents by Inventor Kimbley A. Bushman

Kimbley A. Bushman 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).

  • Polyurethane elastomers from EO/BO polyether polyols
    Patent number: 4745170
    Abstract: This invention is a polyurethane and/or polyurea elastomer prepared in the reaction of:(a) an organic polyisocyanate;(b) a chain extender and(c) a polyether having a molecular weight from about 500 to about 10,000, which polyether is a block copolymer of ethylene oxide and butylene oxide comprising an internal poly(EO) block bonded on each side to a poly(BO) block, wherein oxybutylene moieties comprise from about 10 to about 90 percent of the total weight of the polyether.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: May 17, 1988
    Assignee: The Dow Chemical Company
    Inventors: Kimbley A. Bushman, Michael K. Laughner
  • Polyurea polymers prepared from urea containing prepolymers
    Patent number: 4686242
    Abstract: This invention comprises a process whereby an amine functional compound having an equivalent weight of at least about 400 is reacted with an excess of a polyisocyanate to form an isocyanate-terminated prepolymer or quasi prepolymer, which polymer or quasi prepolymer is reacted with an isocyanate-reactive material which is preferably a relatively low equivalent weight polyol or mixture thereof with an additional amount of said amine functional compound or a relatively high equivalent weight polyol to form a polyurea containing polymer which is preferably non-cellular or microcellular.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: August 11, 1987
    Assignee: The Dow Chemical Company
    Inventors: Robert B. Turner, Richard D. Peffley, Raymond A. Plepys, Ralph D. Priester, Manuel Gonzales, Jr., Kimbley A. Bushman