Copolymers of alpha-methyl styrene and acrylonitrile

Details Copolymers of alpha-methyl styrene and acrylonitrile Copolymers of alpha-methyl styrene and acrylonitrile

1985-08-14

1988-07-05

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F 1212

Patent

active

047555769

ABSTRACT:
Copolymers of from 65 to 75%, by weight, of .alpha.-methyl styrene and from 35 to 25%, by weight, of .alpha.-methyl styrene and from 35 to 25%, by weight, of acrylonitrile, obtainable by radical emulsion polymerization, the monomers being metered in during the course of the polymerization, wherein the molar ratio: ##EQU1## of the unreacted monomers in the reaction mixture is maintained during the metering phase between 0.7 and 1.25.

REFERENCES:
patent: 3491071 (1970-01-01), Lanzo
patent: 4340723 (1982-07-01), Duyzings
patent: 4361684 (1982-11-01), Minematsu
patent: 4536556 (1985-08-01), Tijssen

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