Method for making reaction products of phosgene and dihydric phe

Details Method for making reaction products of phosgene and dihydric phe Method for making reaction products of phosgene and dihydric phe

1987-07-24

1989-03-07

Anderson, Harold D.

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

Organic compounds

Halocarbonate esters

528196, 558280, 558282, C07C 6800

Patent

active

048108138

ABSTRACT:
A method is provided for making reaction products of phosgene and dihydric phenol under interfacial reaction conditions. The dihydric phenol such as BPA is introduced into the reactor in the form of a stable suspension which reduces phosgene hydrolysis, minimizes phosgene escape and effects improved BPA metering into the reactor.

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