Process for removing contaminants from polyesters and controllin

Details Process for removing contaminants from polyesters and controllin Process for removing contaminants from polyesters and controllin

1997-04-02

2000-08-15

Michl, Paul R.

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

Synthetic resins

Process of treating scrap or waste product containing solid...

528481, C08J 1104

Patent

active

061037745

ABSTRACT:
The present invention relates to a process for removing contaminants, which comprises removing contaminants from a contaminant-containing polyester material at a temperature of at least 150.degree. C. in the presence of an equilibrium amount of a polyester reversible side-product.

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