Patents by Inventor Michele L. Lee

Michele L. Lee 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).

  • Rigid polyurethane foams prepared from polyvinyl acetate/allyl alcohol polyols, and process for making same
    Patent number: 5047441
    Abstract: Polyurethane systems are disclosed utilizing polyvinyl acetate/allyl alcohol random copolymers to produce rigid polyurethane foams and a process for producing the same. The resulting foams exhibit improved K-factors, utilized reduced amounts of fluorocarbons as blowing agents, and maintained insulating properties when formulated with increased amounts of water.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: September 10, 1991
    Assignee: BASF Corporation
    Inventors: Eric J. Lind, Manfred L. Genz, Michele L. Lee, Thomas B. Lee