Polyarylate formation by ester interchange reaction

Details Polyarylate formation by ester interchange reaction Polyarylate formation by ester interchange reaction

1983-09-13

1984-11-27

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528128, 528173, 528176, 528179, 528190, 528191, 528193, 528194, 528271, C08G 6318, C08G 6360

Patent

active

044852304

ABSTRACT:
A process for preparing aromatic polyesters (polyarylates) by heating a bisphenol (e.g., Bisphenol-A), at least one dicarboxylic acid (e.g., terephthalic acid and isophthalic acid) and acetic anhydride, in a carefully programmed sequence of steps, resulting in a polymer of suitable inherent viscosity and good color.

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