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US 6,555,513 B2Granted
Detergent compositions
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorAmrat Paul Singh
Life of this patent
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Abstract
Laundry detergent compositions contain a sulphate or sulphonate anionic surfactant and a defined cationic surfactant in a weight ratio of 1:1 to 99:1. The cationic surfactant is a quaternary ammonium salt containing an ethoxylated alkyl chain. The compositions exhibit enhanced removal of oily soil.
Claims13
A laundry detergent composition comprising
- (a) an anionic sulphonate or sulphate surfactant and
- (b) a cationic surfactant of the general formula (I):
- wherein
- R1 is a C12-C14 alkyl group,
- n is from 2 to 4,
- R2, R3 and R4 are methyl groups, and
- X− represents Cl;
- the weight ratio of (a) to (b) being from 1:1 to 99:1.
5 more elements
Dependencies are inferred from the claim text.