Surfactant, process for producing the same and detergent composition

摘要

A nonionic surfactant comprising an aliphatic alcohol alkylene oxide adduct (A), directly produced by adding an alkylene oxide (b1) to an aliphatic alcohol (a1),and satisfying the following (i), (ii) and (iii):(i) comprising one compound, or a mixture of two or more(ii) having a ratio Mw/Mn within the specific range; and(iii) having a distribution constant (c), determined by the following equation (4), of 1.0 or less:This invention provides an aliphatic alcohol alkylene oxide adduct, having surface activities comparable to alkylphenol-based nonionic surfactants and moreover having no fear of environmental endocrine disrupters like alkylphenol-based nonionic surfactants.This invention provides a detergent composition using the above anionic surfactant and having excellent detergency.