Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
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.
Endo Kazuo
Hayashi Masahiro
Yamawaki Takeshi
Levin Stanford M.
Mitsubishi Chemical Industries Ltd.
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