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:
Oct. 18, 1983
Filed:
Jan. 08, 1982
Applicant:
Inventors:
Rolf-Dieter Acker, Leimen, DE;
Gerhard Hamprecht, Weinheim, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
Butadiene dinitriles are prepared by reacting a quaternary ammonium compound with malodinitrile in the presence of an alkanol and then reacting the product with an alkali metal compound. The butadiene dinitriles obtainable by the process of the invention are valuable starting materials for the preparation of dyes, pesticides, drugs and vitamins.