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:
Mar. 12, 1985
Filed:
Jan. 06, 1984
Applicant:
Inventors:
Yoshikazu Higaki, Mie, JP;
Hiroyuki Omori, Mie, JP;
Assignee:
Mitsubishi Yuka Fine Chemicals Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604657 ;
Abstract
Dibromo-dicyanobutane is purified by washing with an aqueous solution of a compound wherein a cationic component is an alkali metal, alkaline earth metal, or ammonium ion and an anionic component is an oxygen-containing anion. The process can prevent dibromo-dicyanobutane from coloration, an irritating odor, and caking.