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. 25, 2012
Filed:
Aug. 05, 2010
Applicants:
Yanhui Sun, Wilmington, DE (US);
Richard P. Beatty, Newark, DE (US);
Inventors:
Yanhui Sun, Wilmington, DE (US);
Richard P. Beatty, Newark, DE (US);
Assignee:
Invista North America S.A R.L., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/08 (2006.01); C07C 69/347 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process is disclosed which employs hydrogenation and esterification to form alkyl diesters. The process subjects an unrefined or otherwise not purified composition comprising maleic anhydride production residue to the processes of hydrogenation and esterification and forming diesters at high conversion efficiency.