Process for the preparation of finely divided thermoplastic resi

Details Process for the preparation of finely divided thermoplastic resi Process for the preparation of finely divided thermoplastic resi

1980-11-10

1982-05-11

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing centrifugal force or rotating forming zone

264 9, B01J 206

Patent

active

043293042

ABSTRACT:
Powders of thermoplastic resins such as polyethylene homopolymer and ethylene-vinyl acetate copolymer are obtained by agitating molten resin in admixture with water and in the presence of a dispersing amount of a substantially water soluble salt of an interpolymer of (i) at least one ethylenically unsaturated ester derived from an alpha, beta-ethylenically unsaturated carboxylic acid and a lower alkanol and (ii) at least one alpha, beta-ethylenically unsaturated carboxylic acid as dispersing agent.

REFERENCES:
patent: 3586654 (1971-06-01), Lerman et al.
patent: 3674736 (1972-07-01), Lerman et al.
patent: 4174335 (1979-11-01), Ohdaira et al.
patent: 4200601 (1980-04-01), McClain
patent: 4252969 (1981-02-01), Broering et al.

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