Patents by Inventor Kevin L. Rooney

Kevin L. Rooney 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).

  • Pentane compatible polyester polyols
    Patent number: 6359022
    Abstract: Disclosed are aromatic polyester polyols, polyol based resin blends, and rigid closed-cell polyisocyanate-based foams made using the polyol based resin blends. The resin blends generally comprise: (a) an aromatic polyester polyol reaction product formed by inter-esterification of a phthalic acid based material; a hydroxylated material having a functionality of at least 2; and a hydrophobic material; and (b) a C4-C7 hydrocarbon blowing agent. Also disclosed is a method for preparing rigid closed-cell polyisocyanate-based foams comprising reacting a polyisocyanate and a polyol based resin blend.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: March 19, 2002
    Assignee: Stepan Company
    Inventors: F. Leo Hickey, Kevin L. Rooney