Porose, pulverformige polymerteilchen

Details Porose, pulverformige polymerteilchen Porose, pulverformige polymerteilchen

1981-07-15

1983-07-05

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264140, 521 56, 521 64, 521 94, C08J 926

Patent

active

043919200

ABSTRACT:
The invention relates to a process producing porous powdery polymer particles. A homogeneous mixture having two components minimum, one a meltable polymer, the other fluid inert to the polymer, both forming a system having a range of complete miscibility and a miscibility gap are introduced to a bed of solid-substance particles, then cooling the mixture to below solidification of the polymer and comminuting the obtained cake-like mass. The polymer is separated then from the inert fluid and solid-like substance particles.

REFERENCES:
patent: 2819981 (1958-01-01), Schornstheimer
patent: 3591524 (1971-07-01), Erickson
patent: 3607793 (1971-09-01), Mahlman
patent: 3681237 (1972-08-01), Orban
patent: 3888766 (1975-06-01), de Young
patent: 4187187 (1980-02-01), Turbeville

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