Compositions – Fluent dielectric – N-containing
Patent
1989-10-24
1991-07-23
Lieberman, Paul
Compositions
Fluent dielectric
N-containing
25217421, 252526, 252554, 252557, 252DIG1, C11D 118, C11D 3065, C11D 330
Patent
active
050341588
ABSTRACT:
A nonionic surfactant based powdered laundry detergent formulation which consists essentially of between about 15 and about 25 percent by weight of one or more nonionic surfactants, between about 1 and 10 percent by weight of one or more of certan carboxysulfonate compounds which may be prepared, for example, by the direct reaction of a hydrocarbyl succinic anhydride with either an aminoalkyl sulfonate or a salt of isethionic acid, between about 2 and about 10 percent by weight of a silicate salt anticorrosion agent, between about 2 and about 40 percent by weight of detergent builder, and a sulfate salt filler. The combination of nonionic surfactant and anionic carboxysulfonate surfactant in the formulation provides a highly effective detergent performance. However, the formulation retains the beneficial properties of mildness, low foam generation, and biodegradability characteristic of nonionic surfactants. The formulation is very effective for removal of particulate soils from fabrics and for preventing their redeposition onto the fabrics during the laundry wash cycle.
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Merrill Connie L.
Wood Donald L.
Ghyka Alexander G.
Lieberman Paul
Shell Oil Company
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