Low molecular weight isoolefin polymer

Details Low molecular weight isoolefin polymer Low molecular weight isoolefin polymer

1993-08-09

1995-07-18

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...

5253333, 5253334, 5253337, 5253338, 525376, 525387, 525388, 525938, 528481, 528501, 528502C, C08F 850, C08F21206

Patent

active

054342210

ABSTRACT:
A process is provided for producing a low molecular weight isoolefin polymer by contacting at conversion conditions a higher molecular weight saturated isoolefin polymer, for example, polyisobutylene or a copolymer of a C.sub.4 to C.sub.7 isoolefin and a para-alkylstyrene, in the melt phase, with an initiator, such as an oxygen-containing gas, an organic peroxide or an azo compound.

REFERENCES:
patent: 3799234 (1974-03-01), Skidmore
patent: 4578430 (1986-03-01), Davison

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