Preparation of polyesters and poly(ester-carbonates) by acidolys

Details Preparation of polyesters and poly(ester-carbonates) by acidolys Preparation of polyesters and poly(ester-carbonates) by acidolys

1981-06-29

1982-07-06

Cockeram, H. S.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 80, C08L 6900, C08G 1842

Patent

active

043384226

ABSTRACT:
Process for the preparation of polyesters and poly(estercarbonates) comprising heating, preferably with a suitable catalyst, aromatic diol polycarbonates and esters of cycloaliphatic or aromatic dicarboxylic acids. The polymers may contain 5-100 mole percent dicarboxylate moiety, based on total acids. The products have utility as molding plastics, fibers, films, adhesives, coatings, extruded shapes, etc. The hydroxy-terminated prepolymer obtained in the first step may be reacted with a diisocyanate to form a polyurethane.

REFERENCES:
patent: 4238597 (1980-12-01), Markezich et al.
patent: 4260695 (1981-04-01), Medem et al.
Japanese Patent Application 15491/55:1980 (TOKKO).

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