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:
Dec. 01, 2015
Filed:
May. 21, 2013
Applicant:
Rohm and Haas Company, Philadelphia, PA (US);
Inventors:
Andrew M. Lemonds, Schwenksville, PA (US);
Jinsuo Xu, Fort Washington, PA (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/327 (2006.01);
U.S. Cl.
CPC ...
C07C 67/327 (2013.01); C07C 67/327 (2013.01); C07C 69/54 (2013.01);
Abstract
A method for producing α-, β-unsaturated carboxylic acid esters in high yield from reaction by-product streams via the catalytic conversion of the by-products to additional α-, β-unsaturated carboxylic acid ester product. The catalyst comprises cesium, and phosphorous as a promoter, on a porous support.