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:
Nov. 08, 2011
Filed:
Jul. 05, 2007
Applicants:
Philippe Leconte, Meyzieu, FR;
Philippe Marion, Vernaison, FR;
Roland Jacquot, Francheville, FR;
Inventors:
Assignee:
Rhodia Operations, Aubervilliers Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/00 (2006.01); C07C 69/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
Diester compounds are prepared from imide/dinitrile compounds employing a vapor-phase hydrolysis of dinitrile compounds in the presence of alcohol, more particularly from branched dinitrile compounds, such as methylglutaronitrile or branched dinitrile compounds obtained as by-products in a process for the production of adiponitrile by hydrocyanation of butadiene.