Method of making uniformly-sized expandable polymeric particles

Details Method of making uniformly-sized expandable polymeric particles Method of making uniformly-sized expandable polymeric particles

1981-08-03

1982-12-14

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 59, 521 60, C08J 918, C08J 920

Patent

active

043638813

ABSTRACT:
A method of making expandable polymeric particles having a uniform size comprising the size classification of partially polymerized particles and subsequent full polymerization and impregnation with blowing agent of only those particles of a desired size.

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patent: 3696060 (1972-10-01), Burt
patent: 4153763 (1979-05-01), Brocke
patent: 4174425 (1979-11-01), Saito et al.
patent: 4226942 (1980-10-01), Wei

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