Process for the production for multimodal latices of vinyl chlor

Details Process for the production for multimodal latices of vinyl chlor Process for the production for multimodal latices of vinyl chlor

1991-09-17

1994-04-05

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...

523201, 523221, C08F 216

Patent

active

053005511

ABSTRACT:
The multimodal latices are produced by nonmicellar aqueous emulsion polymerization of vinyl chloride in the presence of a seed consisting of a multimodal latex originating from a preceding polymerization cycle. The mean size of the elementary particles of the multimodal latices produced is identical to that of the elementary particles of the seed. The latter preferably consists of three classes of elementary particles which have mean diameters of between 0.15-0.30 .mu.m, between 0.45-0.60 .mu.m and between 1.05-1.25 .mu.m respectively.
The vinyl chloride polymers originating from the multimodal latices are-particularly suitable for the manufacture of low-viscosity plastisols.

REFERENCES:
patent: 4046730 (1975-09-01), Tortai
Polymer Handbook, Eds.-Brandrup et al, 2nd Edition, 1975, pp. II-483-II-497.

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