Process for preparing copolymers of vinyl-aromatic monomers with

Details Process for preparing copolymers of vinyl-aromatic monomers with Process for preparing copolymers of vinyl-aromatic monomers with

1981-07-01

1983-09-13

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

525242, 525309, 525311, 526 87, 5263292, 526331, 526342, C08F21210

Patent

active

044043384

ABSTRACT:
Process for preparing copolymers of vinyl-aromatic monomers with ethylenically unsaturated nitriles having a very low content of unreacted residual monomers, consisting in adding to the polymerization dispersion, containing a compound capable of giving free radicals, and in the final step of the polymerization process, from 0.2 to 2% by weight of a comonomer which is reactive towards the unreacted monomers.

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