Process for inhibiting dihydric phenol degradation and color for

Details Process for inhibiting dihydric phenol degradation and color for Process for inhibiting dihydric phenol degradation and color for

1988-07-11

1990-02-20

Lone, Werren B.

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

Organic compounds

Oxygen containing

568724, C07C 3700, C07C 3768, C07C 3716

Patent

active

049028367

ABSTRACT:
A process which comprises the addition of a dihydric phenol degradation inhibiting and color inhibiting effective amount of a phosphite to a composition comprising a dihydric phenol, phenol, and isomers of the dihydric phenol, said addition occurring prior to a distillation procedure.

REFERENCES:
patent: 3305520 (1987-02-01), Fritz et al.
patent: 3402186 (1968-09-01), Schlichting et al.
patent: 3422030 (1969-01-01), Riley
Halasa et al., "Chemical Abstracts", vol. 90:55667m, (1979).

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