Surfactants based on hydroxynaphthoic esters and preparation and

Details Surfactants based on hydroxynaphthoic esters and preparation and Surfactants based on hydroxynaphthoic esters and preparation and

1990-09-11

1993-03-16

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

525450, 252352, C07C 6976, C08F23200

Patent

active

051946653

ABSTRACT:
The ever increasing demands on dispersants, emulsifiers and formulation aids, in particular in the preparation of azo dyes and pigments and in the preparation of dye and pigment dispersions, made it necessary to develop novel surface-active compounds.
According to the invention, it has been possible by esterification of hydroxynaphthalenecarboxylic acids (on the carboxyl) with fatty alcohols or preferably with alkoxylates of fatty acids, resin acids or alkylphenols, condensation of the resulting esterification products with aldehydes to give novolak resins with subsequent alkoxylation and esterification of terminal OH groups with resin acids, fatty acids, aromatic carboxylic acids and hydroxylcarboxylic acids with or without reaction with phthalic anhydride or maleic anhydride and sulfite to develop novel polyfunctional surfactant structures which are very highly suitable for a wide range of applications in dispersion and emulsification, in particular in the preparation and formulation of azo pigments.

REFERENCES:
patent: 4403077 (1983-06-01), Uhrig et al.
patent: 4403079 (1983-06-01), Uhrig et al.

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