Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1981-08-21
1983-03-01
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568724, 568728, C07C 3916
Patent
active
043755674
ABSTRACT:
A method is provided for making bisphenol-A based on the condensation of acetone and phenol in the presence of an ion-exchange resin. Improved yields of 2,2-bis(4-hydroxyphenyl)propane is achieved by recycling bisphenol-A reaction mixture containing significant amounts of 2,4'-dihydroxy-2,2-diphenyl propane based on the use of a macroreticular ion-exchange resin.
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Davis Jr. James C.
General Electric Company
Lone Werren B.
Magee Jr. James
Teoli William A.
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