Sulfated addition products of selected unsaturated dicarboxylic acids and poly(oxyalkylated) alcohols as anionic surfactants

摘要

Described are anionic surfactants which are made by (1) reacting maleic acid, fumaric acid, or mixtures thereof with at least one selected poly(oxyalkylated) alcohol in the presence of a peroxy-type free radical initiator to form a carboxylic acid group-containing addition product and (2) sulfating said addition product with a sufficient amount of a sulfating agent (i.e. sulfamic acid) to convert at least a major proportion of the terminal hydroxyl groups to sulfate groups. These surfactants exhibit excellent surface activity as well as being highly soluble in caustic solutions.