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:
Feb. 26, 2013
Filed:
Feb. 04, 2009
Kebin Geng, Rocky River, OH (US);
Roger W. Avakian, Aurora, OH (US);
Louis Dupont, St. Remi de Napierville, CA;
Stephen D. Horton, Avon Lake, OH (US);
Kebin Geng, Rocky River, OH (US);
Roger W. Avakian, Aurora, OH (US);
Louis Dupont, St. Remi de Napierville, CA;
Stephen D. Horton, Avon Lake, OH (US);
Polyone Coporation, Avon Lake, OH (US);
Abstract
An unhindered polyol is used to react with an epoxidized soyate to make epoxidized soyate diester in the presence of a catalyst. The unhindered polyol can be 1,3-propanediol or any polyol having four or more carbon atoms with no two adjacent carbon atoms having hydroxyl functionality. Preferably, a combination of catalysts is used to promote the transesterification reaction of the epoxidized soyate with the unhindered polyol to yield a high percentage of epoxidized soyate diester with epoxy functionality retained. The primary catalyst is a metallic hydroxide, and the secondary catalyst is a titanate. Bioderived epoxidized soyate diester plasticizers useful for thermoplastics and thermosets result.