Process for the production of powder-form hydrolyzed ethylene/vi

Details Process for the production of powder-form hydrolyzed ethylene/vi Process for the production of powder-form hydrolyzed ethylene/vi

1977-03-14

1978-10-10

Smith, Edward J.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By vibration or agitation

260 4251, 260 4254, 260 458N, 264 13, 526 10, 526 11, B01J 206

Patent

active

041196872

ABSTRACT:
A process for the production of partially or completely hydrolyzed ethylene/vinyl acetate copolymer which is suitable for the various powder coating techniques, wherein the polymer solution is extruded in a non-gelled state into water with a temperature no more than 20.degree. C below the gellation temperature and the gelling solution is converted into particles from 0.02 to 5 mm in diameter by means of high shear forces.

REFERENCES:
patent: 3344129 (1967-09-01), Bestian et al.
patent: 3386978 (1968-06-01), Salzer
patent: 3562234 (1971-02-01), Resz et al.

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