John D. Ciko - Lindenhurst IL Robert A. Ward - Cleveland Heights OH John J. Cramer - Grosse Ile MI
Assignee:
BASF Wyandotte Corporation - Wyandotte MI
International Classification:
C11D 166 C11D 330
US Classification:
252543
Abstract:
Excellent liquid laundry-detergent compositions are obtained by combining (1) alkanolamine, (2) nonionic surfactant, (3) sodium carboxymethylcellulose, (4) fabric brightener(s), (5) solvent, and (6) water. The preferred compositions of the invention also usually contain optional ingredients, such as dyes and perfumes. The alkanolamines promote the action of the nonionic surfactants. Moreover, it is desirable to use some triethanolamine for its stabilizing effect. The mixture of alkanolamine and nonionic surfactants is compatible with sodium carboxymethylcellulose, an excellent agent for avoiding redeposition of soil. The compositions according to the invention have good detergent activity when used at temperatures such as 49 to 60 degrees Centigrade. They afford a liquid laundry detergent which is at least as active, pound for pound, as powder laundry detergents now in common use.
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So says physicist John Cramer, who has not only found evidence of the sound created during the Big Bang, but has also created a simulation of the low, deep noise emitted as the universe came into being.