Aqueous resol solutions and preparation thereof

Details Aqueous resol solutions and preparation thereof Aqueous resol solutions and preparation thereof

1993-08-23

1994-09-06

Lone, Werren B.

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

Organic compounds

Oxygen containing

568719, 568720, 568721, 568722, C07C 3912, C07C 3720

Patent

active

053450019

ABSTRACT:
An aqueous resol solution produced by an alkaline condensation of a phenolic compound with an aldehyde in a molar ratio of 1:1.5 to 2.5 with an alkali metal content of 1 to 5.0% by weight of the reaction solution, neutralizing the solution after the end of condensation at least partially with an aromatic hydroxy carboxylic acid at a temperature not greater than 50.degree. C. and then concentrating the reaction mixture which is readily dilutable with water.

REFERENCES:
patent: 3027412 (1962-03-01), Hotelling et al.
patent: 3425989 (1969-02-01), Shepard et al.
patent: 5220079 (1993-05-01), Iwane et al.

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