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. 30, 2008
Filed:
Jun. 27, 2006
Applicants:
Cécile Rosier, Soucieu En Jarrest, FR;
Philippe Marion, Vernaison, FR;
Damien Bourgeois, Lyons, FR;
Inventors:
Assignee:
Rhodia Operations, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process of hydrocyanation of diolefins such as butadiene is carried out in the presence of a catalytic system comprising a transition metal and mono- and pluri-dentate organophosphorus ligands. The reaction medium containing branched nitrites subsequently is isomerized in the absence of hydrogen cyanide.