Preparation of polyester carbonates from polyanhydride ester int

Details Preparation of polyester carbonates from polyanhydride ester int Preparation of polyester carbonates from polyanhydride ester int

1977-10-21

1978-12-19

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260860, 528202, C08G 6362

Patent

active

041305485

ABSTRACT:
A novel process is disclosed for the preparation of polyester carbonates containing both carboxylate and carbonate groups. The process is based on the making of a mixed polyanhydride ester of a dibasic acid which is reacted with a dihydroxy compound to form a hydroxy containing intermediate that is subsequently transformed into a polyester carbonate by means of a carbonate forming reagent.

REFERENCES:
patent: 3030331 (1962-04-01), Goldberg
patent: 3169121 (1965-02-01), Goldberg
patent: 3207814 (1965-09-01), Goldberg

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