Patents by Inventor Eugene Paul Wiltz, Jr.

Eugene Paul Wiltz, Jr. 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 foams made from hydroxymethyl-containing polyester polyols
    Patent number: 8133930
    Abstract: Flexible polyurethane foams are prepared by reacting a polyisocyanate with a high equivalent weight polyol. At least a portion of the high equivalent weight polyol is a polyester containing hydroxymethyl groups. The polyester is prepared in a multi-step process from animal or vegetable fats, by recovering the constitutent fatty acids, hydroformylating carbon-carbon double bonds in the fatty acids and reducing to form hydroxymethyl groups, and then forming a polyester by reaction with an initiator compound.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: March 13, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Eugene Paul Wiltz, Jr., Zenon Lysenko, Fabio Aguirre, Aaron Sanders, John Tsavalas, David A. Babb, Alan K Schrock