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. 16, 2016
Filed:
Feb. 28, 2013
Applicant:
Petroliam Nasional Berhad, Kuala Lumpur, MY;
Inventors:
Herman Paul Benecke, Columbus, OH (US);
Daniel B. Garbark, Blacklick, OH (US);
Assignee:
Petroliam Nasional Berhad, Kuala Lumpur, MY;
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/08 (2006.01); C07C 29/15 (2006.01); C07C 51/34 (2006.01); C11C 3/10 (2006.01); C11C 3/00 (2006.01); C11C 3/02 (2006.01); C07C 69/003 (2006.01);
U.S. Cl.
CPC ...
C07C 67/08 (2013.01); C07C 29/15 (2013.01); C07C 51/34 (2013.01); C07C 69/003 (2013.01); C11C 3/003 (2013.01); C11C 3/006 (2013.01); C11C 3/02 (2013.01); C11C 3/10 (2013.01);
Abstract
The present invention provides a pretreatment method to reduce saturated fatty acids of fatty acids used as feedstock when preparing ester polyols. The range of feedstock includes non-fractionated to fully fractionated feedstock. Performing some fractionation by distillation of the fatty acids derived from feedstock eliminates the need to fractionate the various ozone esters from each other before esterification. Further, the approach of the present invention is more economical and efficient than the conventional method of fractionation by crystallization.