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:
May. 11, 1976
Filed:
Aug. 18, 1975
Applicant:
Inventors:
Charles M Orlando, Schenectady, NY (US);
Francois A Lavallee, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
260620 ; 2603 / ; 2606 / ;
Abstract
Bromobiphenols containing at least two bromine atoms meta to the phenolic hydroxyl groups can be produced from 3,3',5,5'-tetra-substituted diphenoquinones by reacting the latter with bromine. The reaction can be controlled to produce little, if any, by-product. The products obtained are dependent to some extent on the substituents in the four positions ortho to the hydroxyl groups. The biphenols can be used as antioxidants or as starting materials for preparation of flame-retardent polymeric compositions useful in the molding, coating and insulating arts.