Preparation of ethers of diphenols

Details Preparation of ethers of diphenols Preparation of ethers of diphenols

1993-01-29

1994-02-22

Cintins, Marianne M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568 33, 568638, 568643, 568644, C07C 4101, C07C31504

Patent

active

052889238

ABSTRACT:
A process for the preparation of hydroxyalkyl ethers of diphenols is disclosed. Accordingly, aromatic polycarbonate resin is reacted with alkylene diol in the presence of a basic catalyst, at temperatures of 150.degree. to 250.degree. C. at a molar ratio of 514 10 moles of alkylene diol to 1 mole of aromatic carbonate structural units to produce the corresponding hydroxyalkyl ether. Additional embodiments entail optional reactions of the aromatic polycarbonate with cyclic alkylene carbonate and with open chain monomeric bis-(hydroxyalkyl)-carbonate. Aromatic polycarbonate waste may thus be advantageously recycled.

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