Process for emulsion polymerization of graft copolymers

Details Process for emulsion polymerization of graft copolymers Process for emulsion polymerization of graft copolymers

1990-03-08

1993-02-16

Carrillo, Ana L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525281, 525291, 525302, 525324, 525308, 525317, 524535, 524817, C08F26304, C08F25502

Patent

active

051872331

ABSTRACT:
A process is provided for the production of a graft copolymer by means of emulsion polymerization. The graft base used is a sulfonate group-containing vinyl ester/ethylene latex which is stabilized exclusively by an anionic emulsifier (CMC.gtoreq.0.5% by weight in H.sub.2 O) and is grafted, preferably with vinyl chloride, without further addition of emulsifier or protective colloid. The graft copolymers according to the invention have good water resistance and very good thermoplastic processability. They are useful as impact modifiers and for the production of articles, such as, soft to semi-hard moldings.

REFERENCES:
patent: 3856733 (1974-12-01), Sturt et al.
patent: 4246387 (1981-01-01), Deutsch

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