Formation of discrete polyalkylene carbonate particles by solven

Details Formation of discrete polyalkylene carbonate particles by solven Formation of discrete polyalkylene carbonate particles by solven

1990-09-06

1991-08-20

Nielsen, Earl

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528405, 528491, 528492, 528493, 528494, 528496, 528498, C08G 6402, C08G 6440, C08J 916

Patent

active

050414690

ABSTRACT:
Discrete, non-agglomerating particles of polyalkylene carbonate are produced by solvent
on-solvent precipitation using certain solvent
on-solvent systems. The free-flowing particles obtained are from 30 to 3000 microns in diameter and are suitable for use in a variety of applications, particularly the preparation of foamed articles.

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patent: 3953383 (1976-04-01), Inoue et al.
patent: 4066630 (1978-01-01), Dixon et al.
patent: 4145525 (1979-03-01), Dixon et al.
patent: 4166898 (1979-09-01), Kombe et al.
patent: 4500704 (1985-02-01), Kruper, Jr. et al.

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