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. 16, 1991
Filed:
Jan. 25, 1990
Applicant:
Inventors:
Hisao Eguchi, Tokuyama, JP;
Masashige Kubo, Tokuyama, JP;
Koji Kunimoto, Tokuyama, JP;
Sadami Shimizu, Tokyo, JP;
Masakatsu Sato, Matsudo, JP;
Hanzo Tamabayashi, Tokuyama, JP;
Assignee:
Tosoh Corporation, Shinnanyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568722 ; 568723 ;
Abstract
A process for producing tetrabromobisphenol A, which comprises brominating bisphenol A in methanol, wherein the substrate concentration of bisphenol A to methanol is at most 20 wt/vol %.
Eguchi, Hisao. (1991). Process for producing tetrabromobisphenol a (U.S. Patent No. 5008469). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5008469
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile