Treatment of aqueous suspensions of vinyl chloride polymers

Details Treatment of aqueous suspensions of vinyl chloride polymers Treatment of aqueous suspensions of vinyl chloride polymers

1985-03-26

1986-08-05

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524312, C08K 510

Patent

active

046044191

ABSTRACT:
Treatment of aqueous suspensions of vinyl chloride polymers containing vinyl chloride monomer so as to inhibit wet-foaming therein, by adding a glyceride of an optionally substituted saturated or unsaturated carboxylic acid containing 6 to 20 carbon atoms (e.g. glycerol monoricinoleate). Solid-foaming can also be inhibited by adding a wetting agent (such as partially hydrolysed polyvinyl acetate PVA) and a preferred formulation for effecting the treatment comprises an aqueous emulsion of the glyceride having PVA as the emulsion stabilizer.

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patent: 4426477 (1984-01-01), Yasumatsu et al.
patent: 4481324 (1984-11-01), Hall et al.
Research Disclosures 15779 (May 1977) and 19516 (Jul. 1980).

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