Protective colloid-free plastics dispersion having a bimodal par

Details Protective colloid-free plastics dispersion having a bimodal par Protective colloid-free plastics dispersion having a bimodal par

1981-09-29

1983-07-26

Seccuro, Carman J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524523, 525221, 525223, 525228, C08L 2514

Patent

active

043955002

ABSTRACT:
A protective colloid-free plastics dispersion yielding after drying a polymer film which under the influence of moisture has no or little tendency to whitening contains polymer particles having a bimodal size distribution, that is, on the one hand relatively coarse particles and on the other hand relatively fine particles. The polymer component consists of at least 10 weight % of particles having an average diameter of less than 0.2 .mu.m and of 90 weight % at most of particles having an average diameter of more than 0.25 .mu.m, and the ratio of average grain size of coarse to fine polymer is at least 2:1. The plastics dispersion is suitable especially as binder dispersion in plasters and gloss paints.

REFERENCES:
patent: 3728418 (1973-04-01), Hinsdale
patent: 3784501 (1974-01-01), Pettit
patent: 3935151 (1976-01-01), Nickerson et al.
patent: 3947528 (1976-03-01), Wingler et al.
patent: 3992486 (1976-11-01), Lang
patent: 4009226 (1977-02-01), Ott et al.
patent: 4247438 (1981-01-01), Eck et al.
patent: 4284433 (1981-08-01), Aignesberger et al.

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