Process for the preparation of aromatic polyesters

Details Process for the preparation of aromatic polyesters Process for the preparation of aromatic polyesters

1978-11-24

1981-04-07

Ziegler, J.

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

Synthetic resins

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

525461, 525462, C08L 7500

Patent

active

042606950

ABSTRACT:
High-molecular polyesters which are distinguished by good processability, a high glass transition temperature, mechanical strength and clear transparency are reproducibly obtained by transesterifying and polycondensing bisphenols with diaryl terephthalates and/or diaryl isophthalates in the presence of an aromatic polycarbonate having a molecular weight of 600 to 15,000.

REFERENCES:
patent: 3819759 (1974-06-01), Weaver et al.
patent: 3998908 (1976-12-01), Buxbaum

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