Patent ID: 8008238
Filing Date: 2011-08-30
Classification: C11D

Abstract:
1. 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 R 1 is an alkyl or alkenyl group having 6 to 22 carbon atoms or an R 4 CO—NH—(CH 2 ) n group, R 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms, R 3 is hydrogen or an alkyl group having 1 to 4 carbon atoms, R 4 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.