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:
Sep. 05, 1978
Filed:
Apr. 25, 1977
Applicant:
Inventors:
Janusz Swietoslawski, Jaworzno, PL;
Andrzej Silowiecki, Jaworzno, PL;
Aleksander Ratajczak, Katowice, PL;
Barbara Nocon, Wolbrom, PL;
Zofia Baniak, Jaworzno, PL;
Assignee:
Zaklady Chemiczne 'Organika-Azot', Jaworzno, PL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568726 ;
Abstract
Tetrabromo bisphenol A is prepared from bisphenol A by reacting it with less than four moles of bromine in organic solvent, with or without water, and with simultaneous or subsequent treatment with alkali metal chlorate.