Process for the preparation of aromatic polyesters

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

1988-10-17

1989-06-20

Anderson, Harold D.

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

Synthetic resins

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

525448, 528176, 528194, 528271, C07D20318

Patent

active

048410004

ABSTRACT:
The preparation of aromatic polyesters based on diphenols and iso- and terephthalic acid is carried out by solventfree transesterification of esters of the diphenols with the aromatic dicarboxylic acids, the esters of the diphenols being initially reacted with teriphthalic acid alone and subsequently reacted with isophthalic acid after at least 80% of the terephthalic acid has undergone reaction.

REFERENCES:
patent: 4052384 (1977-10-01), Dockner et al.

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