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:
Jun. 01, 1993
Filed:
Apr. 13, 1992
Ray W Atwell, West Lafayette, IN (US);
William R Fielding, West Lafayette, IN (US);
Harry A Hodgen, Battle Ground, IN (US);
Nicolai A Favstritsky, Lafayette, IN (US);
Great Lakes Chemical Corp., W. Lafayette, IN (US);
Abstract
A flame retarding additive composition, useful in thermoplastic polyolefins, is disclosed comprising a mixture of a halogenated bisphenol derivative and the copolymer of a halogenated vinyl aromatic grafted onto polyolefin. The preferred bisphenol derivative is tetrabromobisphenol A bis(dibromopropyl ether), and the preferred graft copolymer comprises bromostyrene grafted onto isotactic or syndiotactic polypropylene. Also disclosed are the flame retarded, thermoplastic polyolefins prepared using the foregoing additive compositions.