The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2012
Filed:
Apr. 23, 2004
Eugene Paul Wiltz, Jr., Lake Jackson, TX (US);
Zenon Lysenko, Midland, MI (US);
Fabio Aguirre, Pfaffikon, CH;
Aaron Sanders, Missouri City, TX (US);
John Tsavalas, Midland, MI (US);
David A. Babb, Lake Jackson, TX (US);
Alan K Schrock, Midland, MI (US);
Eugene Paul Wiltz, Jr., Lake Jackson, TX (US);
Zenon Lysenko, Midland, MI (US);
Fabio Aguirre, Pfaffikon, CH;
Aaron Sanders, Missouri City, TX (US);
John Tsavalas, Midland, MI (US);
David A. Babb, Lake Jackson, TX (US);
Alan K Schrock, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
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.