Patent ID: 7459417

Claim:
An aqueous hair conditioner composition comprising: a) a cationic conditioning surfactant, b) discrete, dispersed droplets comprising a water-insoluble conditioning oil comprising silicone oil, c) a block copolymer with a mean molecular weight of 1000 unified atomic mass units or more, comprising polyethyleneoxide and polypropyleneoxide blocks selected from the group consisting of (i) poloxamers according to formula I: wherein the mean value of y is from 18 to 60 and the mean value x is from 7 to 140 such that the mean value of the ratio x/y is from 0.4 to 3.0 and (ii) poloxamines according to formula II: wherein the mean value of a is 2 or more and the mean value of b is 2 or more, and d) from 0.01 to 15% by weight of a fatty material selected from the group consisting of fatty alcohols, ethoxylated fatty alcohols, fatty acids and mixtures thereof; and wherein: the cationic conditioning surfactant is present in the aqueous hair conditioner composition in an amount of 0.05 to 5% by weight; the water insoluble conditioning oil is present in the aqueous hair conditioner composition in an amount of 0.2 to 6% by weight and comprises silicone oil; and the block copolymer is present in the aqueous hair conditioner composition in an amount of from 0.01 to 0.7% by weight of the composition; and wherein the water-insoluble conditioning oil is dispersed into the aqueous hair conditioner composition as an oil-in-water emulsion formed by a process comprising steps of: i) preparing a solution comprising water and the block copolymer, ii) adding the water-insoluble conditioning oil to the solution, and iii) forming the solution and the conditioning oil into the oil-in-water emulsion by high shear mixing; and wherein the aqueous hair conditioner composition is itself an oil-in-water emulsion.