Devolatilizing polymers of styrene and acrylic or methacrylic ac

Details Devolatilizing polymers of styrene and acrylic or methacrylic ac Devolatilizing polymers of styrene and acrylic or methacrylic ac

1978-11-16

1980-03-25

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260 328R, 526317, 528481, 528494, 528495, 528496, 528499, C08F 610, C08F 628

Patent

active

041951697

ABSTRACT:
Styrene and acrylic acid or methacrylic acid copolymers can be devolatilized at a temperature above 200.degree. C. and below the decomposition temperature of the copolymer under vacuum in the presence of a monohydric compound such as alcohol or water without significant increase in molecular weight or the formation of undesirable and insoluble gels.

REFERENCES:
patent: 3035033 (1962-05-01), Schweitzer et al.
patent: 3536787 (1970-10-01), Street
patent: 3773740 (1973-11-01), Szabo

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