Process for the preparation of polybutadiene grafted with styren

Details Process for the preparation of polybutadiene grafted with styren Process for the preparation of polybutadiene grafted with styren

1986-05-22

1989-04-18

Briggs, Sr., Wilbert J.

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

Synthetic resins

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

525247, 525252, 525261, 525264, 525265, 525316, C08F27904, C08F 222

Patent

active

048228583

ABSTRACT:
During the reaction of grafting of styrene and acrylonitrile to polybutadiene, the conversion of the graft monomers is increased from the values of 92.div.94% usually obtained, to values very close to 98%, by carrying out a redox-type reaction additional to that provided by the process, in the presence of an additional aliquot of acrylonitrile and of catalytic system.

REFERENCES:
patent: 3991136 (1976-11-01), Dalton et al.
patent: 4200593 (1980-04-01), van der Loos et al.
patent: 4294946 (1981-10-01), Minematsu et al.
patent: 4404338 (1983-09-01), De Toffol et al.

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