Preparation of discrete particles of polyalkylene carbonate

Details Preparation of discrete particles of polyalkylene carbonate Preparation of discrete particles of polyalkylene carbonate

1988-03-21

1989-08-01

Pertilla, Theodore E.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528370, 528493, 528495, 528499, 528503, C08J 314

Patent

active

048534625

ABSTRACT:
The selection of the proper solvent systems for polyalkylene carbonates which completely dissolve the polymer at high temperatures but are non-solvents at lower temperatures allows one to obtain discrete particles of the polymers suitable for many applications, processing and handling. The particles size can be controlled from about 30 to about 3000 microns in diameter.

REFERENCES:
patent: 2964516 (1960-12-01), Henderson

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