Process for recycling polyesters

Details Process for recycling polyesters Process for recycling polyesters

1995-03-07

1996-12-03

Acquah, Samuel A.

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

Synthetic resins

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

521 45, 521 48, 75417, 75422, 75713, 528481, 528489, 528499, C08J 1104

Patent

active

055809057

ABSTRACT:
A process for recycling polyester contained in waste materials is provided. The polyester is converted into a corresponding acid salt of a polybasic organic acid and a polyol. The process steps generally include first combining materials containing polyester with an alkaline composition to form a mixture. The mixture is heated, causing the polyester to convert to the acid salt and polyol. The polyol is evaporated and separated from the acid salt.

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