Process for making polyesters

Details Process for making polyesters Process for making polyesters

2006-07-25

2006-07-25

Boykin, Terressa (Department: 1711)

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

Synthetic resins

From carboxylic acid or derivative thereof

C428S411100, C428S480000, C525S480000, C528S271000

Reexamination Certificate

active

07081511

ABSTRACT:
The present invention relates to a process for making a polyester where a dianhydride is reacted with a diol. The resulting polyester can be further reacted with a compound selected from aromatic oxides, aliphatic oxides, alkylene carbonates, alcohols, and mixtures thereof.

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