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:
Aug. 12, 1997
Filed:
May. 03, 1995
Jean M Frechet, Ithaca, NY (US);
Dongming Li, Houston, TX (US);
Kenneth William Powers, Berkeley Heights, NJ (US);
Hsien-Chang Wang, Bellaire, TX (US);
Donald Andrew White, Keasbey, NJ (US);
Exxon Chemical Patents Inc., Wilmington, DE (US);
Abstract
Vulcanizable blends containing a halogenated copolymer of a C.sub.4 -C.sub.7 isomonoolefin and para-alkylstyrene mixed with one or more olefinically unsaturated elastomeric polymers are disclosed. Cure is preferably effected using zinc stearate as a curative at levels below about 3.0 phr which gives rise to vulcanizates having selective interpolymer addition of benzylic halogen present in the halogenated copolymer to the double bond of the unsaturated polymer with no significant self curing of the halogenated polymer taking place.