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:
Feb. 12, 2013
Filed:
Jan. 22, 2004
Cécile Rosier, Soucieu en Jarrest, FR;
Hocine Kabir, Serezin du Rhone, FR;
Philippe Marion, Vernaison, FR;
Cécile Rosier, Soucieu en Jarrest, FR;
Hocine Kabir, Serezin du Rhone, FR;
Philippe Marion, Vernaison, FR;
Invista North America S.A R.L., Wilmington, DE (US);
Abstract
The present invention relates to a process for the manufacture of compounds comprising two nitrile functional groups. It relates more particularly to a process for the manufacture of dinitrile compounds from compounds comprising a nitrile functional group and an ethylenic unsaturation in the presence of a catalytic system comprising an organometallic complex and a cocatalyst of the Lewis acid type. The process of the invention comprises a stage of treatment of the reaction medium resulting from the hydrocyanation which makes it possible to extract and recover the metal element of the Lewis acid.