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:
May. 21, 2019
Filed:
Feb. 23, 2015
Applicant:
Natureworks Llc, Minnetonka, MN (US);
Inventors:
Aman Kulshrestha, Plymouth, MI (US);
Joseph David Schroeder, Minneapolis, MN (US);
Steven Scott Bray, Omaha, NE (US);
Assignee:
NatureWorks LLC, Minnetonka, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/03 (2006.01); C07C 69/67 (2006.01); C07C 69/68 (2006.01);
U.S. Cl.
CPC ...
C07C 67/03 (2013.01);
Abstract
2-Acetoxyalkanoic acid esters are made in a reaction of an α-hydroxyalkanoic acid ester and an acetate ester in the presence of a transesterification catalyst. Unlike previous methods for making 2-acetoxyalkanoic acid esters, this process proceeds in high yield and high selectivity to the desired product.