Method for preventing the discoloration of dihydric phenols

Details Method for preventing the discoloration of dihydric phenols Method for preventing the discoloration of dihydric phenols

1980-05-22

1981-12-29

Lone, Werren B.

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

Organic compounds

Oxygen containing

568742, 568749, 568763, C07C 3768, C07C 3788

Patent

active

043084060

ABSTRACT:
Dihydric phenol is effectively prevented from discoloration by mixing the dihydric phenol with 0.00001 to 0.1% by weight of hydrocarboxylic acid on the basis of the dihydric phenol.

REFERENCES:
patent: 2691669 (1954-10-01), Walker
patent: 2736753 (1956-02-01), Jacobs
patent: 4239921 (1980-12-01), Hashimoto et al.

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