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:
Apr. 09, 1985
Filed:
Aug. 15, 1983
Applicant:
Inventor:
Gerhard Stern, Linz, AT;
Assignee:
Chemie Linz Aktiengesellschaft, Linz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
Acetonitrile and molten sodium are reacted at a temperature of 96.degree.-140.degree. C. in the presence of an organic solvent which is inert to sodium, to give the sodium salt of diacetonitrile, the salt is hydrolyzed with water, the aqueous and the solvent phases are separated off, and very pure diacetonitrile crystallizes out in cold water.