C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 10/04 (2006.01) C11D 1/52 (2006.01) C11D 1/06 (2006.01) C11D 1/14 (2006.01) C11D 1/16 (2006.01) C11D 1/28 (2006.01) C11D 1/29 (2006.01)
Patent
CA 2148099
2148099 9412609 PCTABS00032 Mixed nonionic/anionic surfactants which comprise polyhydroxy fatty acid amides and anionic surfactants of the .alpha.-sulfonated fatty acid esters, alkyl ethoxylated sulfate, alkyl ethoxylated carboxylate, alkyl sulfate or sulfated alkyl polyglycoside types are used in various cleaning functions. Thus, C10-C22 fatty acid N-alkyl glucamides are combined with such anionic surfactants, a soap and a source of calcium ions. The resulting mixtures exhibit exceptionally low interfacial tension, especially in the presence of calcium ions. Mixtures of such nonionic/anionic/soap/calcium systems surfactants with conventional ethoxylated alcohol surfactants provide excellent removal of cosmetic stains from fabrics.
Kirby Eades Gale Baker
The Procter & Gamble Company
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