Process for preparing a graft copolymer

Details Process for preparing a graft copolymer Process for preparing a graft copolymer

1974-01-11

1976-08-17

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

526 85, 526222, 526223, 526229, 526332, 526328, 526342, 526345, C08F25702, C08F26504, C08F26708, C08F27902

Patent

active

039754618

ABSTRACT:
A graft copolymer is provided which is characterized by excellent gas impermeability, transparency and impact strength, as well as good flowability, and hence good molding workability, by copolymerizing an olefinically unsaturated nitrile with an alkyl vinyl ether in the presence of a rubbery polymer, which contains at least 50% by weight of a conjugated diene; said olefinically unsaturated nitrile being present in an amount of from 60 to 95% by weight, based on the total weight of said olefinically unsaturated nitrile and said alkyl vinyl ether; and wherein said olefinically unsaturated nitrile and said alkyl ether are present in an amount of from 3 to 50 times by weight the quantity of said rubbery polymer.

REFERENCES:
patent: 3451538 (1969-06-01), Trementozzi
patent: 3607978 (1971-09-01), Lee
patent: 3634547 (1972-01-01), Rose et al.

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