Back to results
US 6,608,016 B2Granted
Detergent compositions
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorAmrat Paul Singh
Life of this patent
Estimating the term…
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 surfactant which is a linear alkylbenzene sulphonate;
- and
- (b) a cationic surfactant of the general formula (I):
- wherein
- R1 is a C6-C20 alkyl group,
- n is an integer from 2 to 20,
- R2 and R3, which may be the same or different, each represents a C1-C4 alkyl group or a C2-C4 hydroxyalkyl group,
- R4 represents a C1-C4 alkyl group, and
- X− represents a monovalent solubilising anion.
6 more elements
Dependencies are inferred from the claim text.