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. 18, 1989
Filed:
Nov. 18, 1987
Applicant:
Inventors:
Assignee:
Tosoh Corporation, Shinnanyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
570208 ; 570206 ; 570210 ;
Abstract
A method for preparing Con-BAN, in which Con-AN is reacted with bromine in the presence of an iron Lewis acid catalyst and in which the solution of Con-AN and bromine are supplied simultaneously at a given rate into a reactor already containing a halogenated hydrocarbon and an iron catalyst.
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Okisaki, Fumio. (1989). Method for preparation of polybromoacenaphthene and/or its condensate (U.S. Patent No. 4822931). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4822931
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