Compositions – Fluent dielectric – N-containing
Patent
1993-03-30
1994-07-26
Lieberman, Paul
Compositions
Fluent dielectric
N-containing
25217423, 252527, 252DIG2, 252DIG11, 558 25, 560171, C11D 333, C11D 337
Patent
active
053325273
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 aspartate 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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Armstrong Molly P.
Eis Michael J.
Heinzman Stephen W.
Hertzog A.
Jones Michael D.
Lieberman Paul
The Procter & Gamble & Company
Yetter Jerry J.
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