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:
Sep. 29, 2015
Filed:
Jun. 11, 2014
Rhodia Operations, Aubervilliers, FR;
Laurianne Timbart, Bensalem, PA (US);
Nemesio Martinez-Castro, Bristol, PA (US);
James Woods, Wilmington, DE;
Howard Prokop, Feasterville, PA (US);
Rastko Vukov, Princeton, NJ (US);
RHODA OPERATIONS, Paris, FR;
Abstract
Transesterification processes for producing a compound of formula (I) wherein R1 is H or a methyl group, A and B are each, independently, a linear or branched C2-C5 alkylene group, comprising reacting: an acrylate or methacrylate of formula (II) wherein R1 is H or a methyl group and R2 is a C1-C4 alkyl group, with a compound of formula (III) wherein the reaction is performed: (i) in the presence of calcium oxide and calcium hydroxide, and (ii) wherein the molar ratio of the compounds of formula (II) to formula (III) is less than 4:1 or 3:1 respectively.