Process for the production of polyethyleneterephthalate from dim

Details Process for the production of polyethyleneterephthalate from dim Process for the production of polyethyleneterephthalate from dim

1989-05-22

1990-08-28

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528277, 528308, 5283086, 528502, 21050021, C08G 6378

Patent

active

049526685

ABSTRACT:
A process for the removal of manganese catalyst from the bis glycol ester of terephthalic acid, by adding terephthalic acid and/or isophthalic acid, and separating the precipitate.

REFERENCES:
patent: 3070575 (1962-12-01), Cramer
patent: 3487049 (1969-12-01), Busot
patent: 3551386 (1968-06-01), Berkau et al.

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