Sulfated addition products of selected unsaturated dicarboxylic acids and poly(oxyalkylated) alcohols as anionic surfactants
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United States of America Patent
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Aug 6, 1985
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N/A
app pub date -
Sep 24, 1984
filing date -
Sep 24, 1984
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Expired
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Abstract
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.
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