Process for halogenating para-alkyl styrene/isoolefin copolymers

Details Process for halogenating para-alkyl styrene/isoolefin copolymers Process for halogenating para-alkyl styrene/isoolefin copolymers

1990-07-02

1995-08-01

Geist, Gary L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525356, C08F 1208, C08C 1914

Patent

active

H00014753

ABSTRACT:
A process for halogenating copolymers of an isoolefin having from 4 to 7 carbon atoms and a para-alkylstyrene in the melt phase is provided in which the halogenation reaction is performed in a continuous flow device, such as an extruder-reactor. Halogenated copolymers produced by the process are also provided.

REFERENCES:
patent: 3145187 (1964-08-01), Hankey et al.
patent: 3948868 (1976-04-01), Powers
patent: 4074035 (1978-02-01), Powers et al.
patent: 4513116 (1985-04-01), Kowalski et al.
patent: 4548995 (1985-10-01), Kowalski et al.
patent: 4554326 (1985-11-01), Kowalski et al.

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