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US 6,720,298 B2Granted
Detergent compositions comprising an ethoxylated alcohol and alkyl ioenzene sulfonate
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsSandra Ann Blything, Amrat Paul Singh, Thelma Christine Titley
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Abstract
A built laundry detergent composition contains anionic surfactant in combination with a minor amount of a highly ethoxylated nonionic surfactant which is a C8-C16 alcohol ethoxylated with an average of from 20 to 50 ethylene oxide groups. The composition exhibits improved oily soil detergency especially under hard water conditions.
Claims10
A built laundry detergent composition comprising
- (i) from 5 to 40 wt % of surfactant consisting essentially of:
- (i)(a) from 60 to 99 wt %, based on the surfactant (i), of linear alkyl benzene sulfonate surfactant,
- (i)(b) from 1 to 40 wt %, based on the surfactant (i), of an ethoxylated alcohol nonionic surfactant of the formula
- R—(—O—CH2—CH2)n—OH
- wherein R is a hydrocarbyl chain having from 12 to 15 carbon atoms, and the average degree of ethoxylation n is from 25 to 40, wherein the ratio of the anionic surfactant (i)(a) to the ethoxylated nonionic surfactant (i)(b) is within the range of from 5:1 to 10:1,
- (ii) from 10 to 40 wt % of detergency builder,
- (iii) optionally other detergent ingredients to 100 wt %.
4 more elements
Dependencies are inferred from the claim text.