Catalytic process for the preparation of polyalkylene carbonates

Details Catalytic process for the preparation of polyalkylene carbonates Catalytic process for the preparation of polyalkylene carbonates

1991-08-16

1992-12-15

Anderson, Harold D.

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

Synthetic resins

From reactant having a halogen atom or oxygen single bonded...

521 25, 525439, 528370, C08G 6430

Patent

active

051718308

ABSTRACT:
A method for producing polyalkylene carbonates is disclosed. The polymers are prepared by reacting a diol having at least four carbons separating the hydroxyl groups with a diester of carbonic acid in the presence of a catalyst selected from tertiary amines, alkylammonium salts, pyridinium salts, and basic ion-exchange resins that contain active alkylammonium or tertiary amino groups.

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