Devolatilization of alkenyl aromatic polymers

Details Devolatilization of alkenyl aromatic polymers Devolatilization of alkenyl aromatic polymers

1974-09-12

1976-10-19

Wong, Jr., Harry

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

Synthetic resins

Treating polymer containing material or treating a solid...

526342, 526346, 528496, C08F11208, C08F21210

Patent

active

039872351

ABSTRACT:
Alkenyl aromatic polymers such as styrene polymers are devolatilized in a molten condition by the introduction of methanol and the volatiles removed under vacuum. A low level of residual monomer is readily obtained.

REFERENCES:
patent: 2255729 (1941-09-01), Britton et al.
patent: 2849430 (1958-08-01), Amos et al.
patent: 3536787 (1970-10-01), Street
patent: 3773740 (1973-11-01), Szabo

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