Two-phase composition
The present invention relates to a two-phase composition comprising an oil phase comprising (a) at least one oil, and an aqueous phase comprising: (b) at least one aromatic ketone compound represented by formula (I); (c) at least one polyglyceryl fatty acid ester; and (d) water. The composition according to the present invention has two visually distinct phases when not being mixed. However, the composition according to the present invention can be transformed into a single phase composition when being mixed. The single phase composition, such as an emulsion, can provide good cosmetic effects such as good make-up removability, without discomfort. The single phase composition can return to a two-phase composition with a clean interface between the two re-formed phases.
1 . A two phase composition comprising:
an oil phase comprising (a) at least one oil selected from the group consisting of volatile branched C8-C16 hydrocarbon oils, dialkyl ether oils having two C8-12 alkyl groups, and mixtures thereof;
an aqueous phase comprising:
(b) at least one aromatic ketone compound represented by the following chemical formula (I)
wherein
R 5 , R 6 and Ry, each independently, represent a hydrogen atom, a hydroxyl group, a C 1 -C 6 alkyl group, or a C 1 -C 6 alkoxy group, with the proviso that at least one of R 5 , R 6 and R 7 represents a hydroxyl group, and
R represents a C 1 -C 6 alkyl group or an aryl group;
(c) at least one polyglyceryl fatty acid ester is selected from the group consisting of polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 distearate, and mixtures thereof; and
(d) water.
2 . The composition according to claim 1 , wherein the composition is capable of transforming into a single phase composition.
3 . The composition according to claim 2 , wherein the single phase composition is capable of transforming into a two phase composition.
4 . The composition according to claim 1 , wherein the amount of the (a) oil(s) in the composition is from 7% to 70% by weight, relative to the total weight of the composition.
5 . The composition according to claim 1 , wherein the R in the chemical formula (I) represents a methyl group, an ethyl group or a phenyl group.
6 . The composition according to claim 1 , wherein the (b) aromatic ketone compound is hydroxyacetophenone.
7 . The composition according to claim 1 , wherein the amount of the (b) aromatic ketone compound(s) in the composition is from 0.1% to 3% by weight, relative to the total weight of the aqueous phase of the composition.
8 . The composition according to claim 1 , wherein the amount of the (c) polyglyceryl fatty acid ester(s) in the composition is from 0.001% to 0.5% by weight, relative to the total weight of the aqueous phase of the composition.
9 . The composition according to claim 1 , wherein the amount of the (d) water in the composition is from 30% to 93% by weight, relative to the total weight of the composition.
10 . The composition according to claim 1 , wherein the composition is a cosmetic composition.
11 . A cosmetic process for a keratin substance, comprising:
mixing the composition according to claim 1 to form a single phase composition; and
applying the single phase composition onto the keratin substance.
12 . The composition according to claim 1 , wherein the (a) oil is selected from the group consisting of isohexadecane, isododecane, dicaprylyl ether, and a mixture thereof.