Method for stabilizing bisphenols under melt or distillation con

Details Method for stabilizing bisphenols under melt or distillation con Method for stabilizing bisphenols under melt or distillation con

1978-04-17

1979-07-03

Morgenstern, Norman

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

Organic compounds

Oxygen containing

203 6, 568702, 568723, 568724, 568727, 568728, C07C 3722

Patent

active

041601106

ABSTRACT:
A process is provided for improving the stability of bisphenols under melt or distillation conditions by employing an aromatic anhydride such as phthalic anhydride as a stabilizing agent. A reduction is effected in the rate of formation of phenol and other cracking products which are decomposition by-products of the bisphenol.

REFERENCES:
patent: 2672485 (1954-03-01), Menn et al.
patent: 3403186 (1968-09-01), Schlichting et al.

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