Process for the preparation of polyketone and poly(ketone-sulfon

Details Process for the preparation of polyketone and poly(ketone-sulfon Process for the preparation of polyketone and poly(ketone-sulfon

1988-09-06

1989-08-29

Anderson, Harold D.

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, 528206, 528207, 528220, 528364, C08G 6700

Patent

active

048618560

ABSTRACT:
Disclosed is an improved process for the preparation of polyketone and poly(ketone-sulfone) polymers by the reaction of at least one dicarboxylic acid with certain aromatic compounds containing at least four benzene residues in the presence of a perfluoroalkylsulfonic acid and (1) an oxide of phosphorus and/or (2) a perhaloalkanoic anhydride.

REFERENCES:
patent: 4396755 (1983-08-01), Rose

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