ANIONIC SURFACE ACTIVE AGENTS AND THE PREPARATION THEREOF

摘要

Anionic surface active agents of the general formulae I and II where R<1> is C1-12 alkyl; A is -(CH2)n- (wherein n is 0-6), -CH=CH-, phenylene, or alkylphenylene; x is an integer of 3 to 35; R<2> is C8-12 alkyl or alkenyl; where x is as defined above; and the salts thereof with inorganic or organic bases. These surfactants have excellent surface active properties and hard water tolerance, and may be prepared by conventional esterification techniques.