2,3-Carboxy alkoxy succinic acid and salts thereof

Abstract

.alpha.,.alpha.'-carboxyalkoxy succinic acids and salts thereof are described in which the carboxyalkoxy radicals contain from 2 to about 7 carbon atoms and which are useful as sequestrants and in which the carboxyalkoxy radicals contain from about 8 to about 30 carbon atoms and which are useful as lubricant additives, sizing agents for paper and textiles, and the like. A method is disclosed for sequestering polyvalent metal ions using .alpha.,.alpha.'-carboxyalkoxy succinic acid or salts thereof. A method for sequestering polyvalent metal ions is disclosed using .alpha.,.alpha.'-carboxyalkoxy succinic acid or salts thereof in combination with a surfactant.

Dependencies are inferred from the claim text.