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US 8,008,238 B2Granted
Odor reduction for agents containing hypochlorite
AssigneeHenkel AG & Co. KGaA
InventorsCarlos Malet, Mercedes Mendoza Cruz, Pilar Ibanez, Miguel Osset
Life of this patent
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Abstract
The aim of the invention is to diminish the odor, often perceived as unpleasant, that is left behind on human skin, in particular on the hands as a result of contact with agents containing chlorine bleach after use of the agent. This was achieved by the use of odorants selected from the group comprising diphenylmethane, diphenyl oxide, 2-methyl naphtyl ether, and mixtures thereof.
Claims6
An aqueous liquid bleaching agent containing comprising:
- alkali-metal hypochlorite,
- at least a bleach-stable surfactant in an amount of 0.01 wt. % to 5 wt. %, wherein the surfactant is at least a betaine surfactant of general formula (I)
- wherein R1 is an alkyl or alkenyl group having 6 to 22 carbon atoms or an R4CO—NH—(CH2)n group, R2 is hydrogen or an alkyl group having 1 to 4 carbon atoms, R3 is hydrogen or an alkyl group having 1 to 4 carbon atoms, R4 is an alkyl or alkenyl group having 6 to 22 carbon atoms, m is a number from 1 to 6, and n is a number from 1 to 3, and
- odorant,
- wherein the odorant is selected from the group consisting of a combination of 0.0005 wt % to 0.005 wt % diphenylmethane and 0.005 wt % to 0.025 wt % diphenyl oxide in a weight ratio of from 1:1 to 1:50, a combination of 0.0005 wt % to 0.005 wt % diphenylmethane and 0.0001 wt % to 0.005 wt % 2-methyl naphthyl ether in a weight ratio of from 50:1 to 1:10, and a combination 0.005 wt % to 0.025 wt % of diphenyl oxide and 0.0001 wt % to 0.005 wt % 2-methyl naphthyl ether in a weight ratio of from 250:1 to 1:1.
2 more elements
Dependencies are inferred from the claim text.