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US 2022/0098520 A1Published application
Laundry detergent
AssigneeConopco, Inc., d/b/a UNILEVER
InventorsStephen Norman BATCHELOR, Neil Stephen BURNHAM
Life of this patent
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Abstract
A laundry detergent composition comprising: (i) from 2 to 70 wt. % of a surfactant; and (ii) from 0.00001 to 0.1 wt. % of shading dye which is covalently bound to at least one alkoxy-CH2CHO or —CH2CHO capped polyalkoxy group.
Claims22
A laundry detergent composition comprising:
- (i) from 2 to 70 wt. % of a surfactant;
- and
- (ii) from 0.00001 to 0.1 wt. % of shading dye according to claim 12.
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A blue or violet non-leuco shading dye shading of the following structure (II):
- wherein at least one of R1 and R2 represents an alkoxy-CH2CHO or —CH2CHO capped polyalkoxy group, preferably wherein one of R1 and R2 represents an alkoxy-CH2CHO or —CH2CHO capped polyalkoxy group and the remaining one of R1 and R2 represents —H, -alkoxy or -polyalkoxy, more preferably -ethoxy or -polyethoxy.
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Dependencies are inferred from the claim text.