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:
May. 13, 2008
Filed:
Dec. 03, 2002
Hendrik Oevering, Elsloo, NL;
Franciscus H. A. M. Vandenbooren, Maastricht, NL;
Olaf Poorter, Maastricht, NL;
Hendrik Oevering, Elsloo, NL;
Franciscus H. A. M. Vandenbooren, Maastricht, NL;
Olaf Poorter, Maastricht, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
The invention relates to a process for preparing succinonitrile by contacting acrylonitrile (ACN) with hydrocyanic acid (HCN) in a reactor in the presence of a tertiary amine. The invention also relates to the use of succinonitrile prepared according to the process of the invention, for preparing diaminobutane. Succinonitrile is prepared by contacting ACN with HCN in the presence of a tertiary amine and a compound chosen from the group consisting of water, aliphatic alcohols, aromatic alcohols, carboxylic acids and mixtures thereof.