Rod-shaped polymer latex, rod-shaped polymer fine powder and dis

Details Rod-shaped polymer latex, rod-shaped polymer fine powder and dis Rod-shaped polymer latex, rod-shaped polymer fine powder and dis

1985-02-21

1987-01-06

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

521 29, 524908, 526909, C08J 302

Patent

active

046347259

ABSTRACT:
A finely powdered polymer latex in the rod-like form having a major axis of from 0.1 to 100 microns and a minor axis of below 1/3 times the major axis. When the particles are dispersed in water at a concentration of 15 wt %, the thixotropy index, .eta.3/.eta.30 is not less than 1.5.
The polymer powder of the above size and configuration is useful in various fields including paint binders, diagnostic means and cosmetics.
The polymer latex is prepared by solubilizing a polymerizable monomer in rod-shaped micelles, and polymerizing the monomer while keeping the rod-shaped micelle structure.

REFERENCES:
patent: 4157328 (1979-06-01), Beyer
patent: 4264676 (1981-04-01), Uzumaki
patent: 4447566 (1984-05-01), Hruska
patent: 4474907 (1984-10-01), Genba

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