Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-05-31
1997-08-05
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5253334, 525355, 525376, 522 62, 522160, C08F 820
Patent
active
056543794
ABSTRACT:
A process for the bromination of a copolymer of an isoolefin having from 4 to 7 carbon atoms and a para-alkystyrene comprising bromating the copolymer in the presence of bromine and a radical initiator thereby providing a brominated copolymer of the copolymer. The brominated copolymer is substantially free of ring bromine and backbone bromine.
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Powers Kenneth William
Wang Hsien-Chang
Cohen Harvey L.
Exxon Chemicals Patent Inc.
Kurtzman Myron B.
Teskin Fred
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