Amino-functional compounds as builder/dispersants in...

Details Amino-functional compounds as builder/dispersants in... Amino-functional compounds as builder/dispersants in...

C - Chemistry, Metallurgy

07

C

260/228, 260/221

C07C 229/24 (2006.01) C07H 13/04 (2006.01) C11D 3/33 (2006.01) C11D 3/37 (2006.01)

Patent

CA 1327793

AMINO-FUNCTIONAL COMPOUNDS AS BUILDER/DISPERSANTS IN DETERGENT COMPOSITIONS ABSTRACT Amino-functional compounds are economically prepared by reacting maleic anhydride with alcohols to form a maleate or fumarate "half-ester" which is combined with certain amines, most preferably aspratate or glutamate, under conditions selected to avoid hydrolysis. At low molecular weights, the compounds herein are useful detergency builders; at progressively higher molecular weights within a specific range, combined builder/dispersant and typical dispersant properties emerge. Processes for preparing the compounds and useful detergent compositions containing them are described.

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