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:
Jul. 11, 1978
Filed:
Apr. 22, 1977
Applicant:
Inventor:
Donald Wright, Middlesbrough, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
Acrylonitrile is converted to a dimer product, at least 85% by weight of which consists of 1,4-dicyanobutenes, by reacting with an organic phosphite catalyst in a liquid solvent for the catalyst comprising an organic proton donor and substantially devoid of water, the acrylonitrile forming less than 50% by weight of the total liquid reaction mixture.