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:
Jan. 06, 1976
Filed:
Mar. 27, 1973
Robert M Thomas, Palisades Park, NJ (US);
Rastko I Mamuzic, West Lafayette, IN (US);
Great Lakes Chemical Corporation, West Lafayette, IN (US);
Abstract
The compounds bis(2,3-dibromopropyl carbonate) of tetrabromobisphenol A and bis(2,3-dibromopropyl carbonate) of tetrachlorobisphenol A are effective fire retardants and impart enhanced fire-retardant properties to normally-combustible polymers by incorporation therein of a fire-retardant amount of one of said compounds or a mixture thereof. The fire retardancy of such polymer composition is further enhanced by incorporation therein of an additional flame-retardant material, e.g., an arsenic, antimony, or bismuth compound, preferably antimony oxide. Such polymer compositions of enhanced fire-retardancy incorporating a compound of the invention.