Oil-in-water emulsion for caring for and/or making up keratin materials comprising microcapsules encapsulating an oily dispersion of at least one reflective agent

1. A composition for caring for and/or making up keratin materials comprising, in a physiologically acceptable medium:

a) at least one aqueous phase;

b) at least one oily phase dispersed in the said aqueous phase; and

c) microcapsules comprising:

an inner core comprising a dispersion of at least one reflective agent in at least one oil, wherein the at least one reflective agent is bismuth oxychloride and the at least one oil is a non-volatile polar hydrocarbon-based oil selected from the group consisting of 2-ethylhexyl hydroxystearate, ethylhexyl ethylhexanoate, and mixtures thereof, and

at least one outer shell formed of a wall-forming polymeric material surrounding the core, the outer shell comprising

i) at least one wall-forming polymer, and

ii) optionally at least one plasticizer and/or at least one opaque substance and/or at least one fatty acid salt.

2. The composition according to claim 1 , wherein an amount of the reflective agent ranges from 50 % to 90% by weight based on a total weight of the dispersion.

3. The composition according to claim 1 , wherein a weight ratio of the reflective agent particles to the oil(s) ranges from 1.5/1 to 5/1.

4. The composition according to claim 1 , wherein the dispersion of reflective agent in the at least one oil is a dispersion of bismuth oxychloride in ethylhexyl hydroxystearate.

5. The composition according to claim 1 , wherein the wall-forming polymer forming the outer shell(s) is selected from a polyacrylate a polymethacrylate, a cellulose ether or ester, or any combination thereof.

6. The composition according to claim 5 , wherein the wall-forming polymer is selected from the group consisting of poly(methyl methacrylate) (PMMA), poly(methyl methacrylate)-co-(methacrylic acid) (PMMA/MA), an acrylate/ammonium methacrylate copolymer, and cellulose acetate.

7. The composition according to claim 1 , wherein the outer shell of the microcapsules comprises an opaque substance, the opaque substance being selected from TiO 2 , zinc oxide, alumina, boron nitride, talc, mica or any combination.

8. The composition according to claim 1 , wherein the outer shell of the microcapsules comprises a fatty acid salt, the fatty acid salt being magnesium stearate.

9. The composition according to claim 1 , wherein the microcapsules comprise

the inner core in an amount within a range of from 20 %to 90% by weight relative to a total weight of the microcapsules; and

the wall-formimg polymer(s) of the outer shell within a range of from 5% to 30% by weight relative to the total weight of the microcapsules; and

optionally, the opaque substance(s) in the outer shell in an amount ranging from 1% to 50% by weight, relative to the total weight of the microcapsules; and/or

optionally, the fatty acid salt in the outer shell in an amount ranging from 0.05% to 5% by weight, relative to the total weight of the microcapsules; and/or

optionally, the plasticizer(s) in the outer shell in an amount ranging from 0.5% to about 30% by weight, relative to the total weight of the microcapsules.

10. The composition according to claim 1 , wherein the microcapsules are single-layer microcapsules.

11. The composition according to claim 10 , wherein the -single-layer microcapsules comprise:

the inner core comprising bismuth oxychloride dispersed in 2-ethylhexyl hydroxystearate in an amount from 60 to 80% by weight, and

the outer shell comprising magnesium stearate in an amount ranging from 1.0% to 2.0% by weight, TiO2 in an amount ranging from 1% to 20% by weight, and, as the wall-forming polymer, PMMA, in an amount ranging from 5% to 20% by weight relative to a total weight of the microcapsules.

12. The composition according to claim 10 , wherein the single-layer microcapsules comprise:

the inner core comprising bismuth oxychloride dispersed in 2-ethylhexyl hydroxystearate in an amount from 60 to 80% by weight, and

the outer comprising TiO 2 in an amount ranging from 10% to 50% by weight, and, as the wall-forming polymer, ethyl cellulose, in an amount ranging from 1% to 10% by weight relative to a total weight of the microcapsules, wherein the outer shell does not comprise magnesium stearate.

13. The composition according to claim 10 , wherein the-single-layer microcapsules comprise:

the inner core comprising bismuth oxychloride dispersed in 2-ethylhexyl hydroxystearate in an amount from 60 to 80% by weight, and

the outer shell comprising magnesium stearate in an amount ranging from 1.0% to 2.0% by weight, TiO 2 in an amount ranging from 1% to 20% by weight, and, as the wall-forming polymer, poly(ethyl acrylate)-co-methyl methacrylate-co-trimethyl ammonium ethyl methacrylate chloride, in an amount ranging from 5% to 20% by weight, relative to a total weight of the microcapsules.

14. The composition according to claim 10 , wherein the single-layer microcapsules comprise:

the inner core comprising bismuth oxychloride dispersed in 2-ethylhexyl hydroxystearate in an amount ranging from 60 to 80% by weight, and

the outer shell comprising magnesium stearate in an amount ranging from 1.0% to .0% by weight, TiO 2 in an amount ranging from 1% to 20% by weight, and, as the wall-forming polymer, poly(methyl methacrylate)-co-(methacrylic acid) (PMMA/MA), in an amount ranging from 5 % to 20% by weight, relative to a total weight of the microcapsules.

15. The composition according to claim 10 , wherein the -single-layer microcapsules comprise:

the inner core comprising bismuth oxychloride dispersed in 2-ethylhexyl hydroxystearate in an amount of from 60 to 80% by weight, and

the outer shell comprising a plasticizer, in an amount ranging from 1% to 20% by weight, and, as the wall-forming polymer material, poly(ethyl acrylate)-co-methyl methacrylate-co-trimethyl ammonium ethyl methacrylate chloride, in an amount ranging from 5% to 20% by weight, relative to a total weight of the microcapsules, wherein the outer shell does not comprise magnesium stearate nor TiO 2 .

16. The composition according to claim 1 , wherein the composition is an oil-in-water emulsion.

17. The composition according to claim 1 , further comprising at least one coloring agent.

18. The composition according to claim 1 , further comprising at least one mono-alcohol comprising from 2 to 8 carbon atoms, at a concentration of at least 10% by weight relative to a total weight of the composition.

19. The composition according to claim 1 , further comprising at least one filler.

20. The composition according to claim 1 further comprising at least one non-emulsifying organopolysiloxane elastomer.

21. The composition according to claim 1 , wherein the composition is in the form of an oil-in-water emulsion having oil globules whose number-average size is less than or equal to 200 nm.

22. The composition according to claim 19 , wherein the aqueous phase is continuous and the oily phase dispersed on said continuous phase; and the composition further comprises a) a mixture of nonionic surfactants comprising: (i) at least one alkoxylated fatty ester selected from esters formed from 1 to 100 ethylene oxide units and at least one fatty acid chain containing from 16 to 22 carbon atom; and (ii) at least one fatty ester of glycerol selected from esters formed from at least one acid comprising a saturated linear alkyl chain having from 16 to 22 carbon atoms, and 1 to 20 glycerol units; and b) at least one anionic amphiphilic lipid, wherein a weight ration of the amount of oily phase to a total amount of nonionic surfactants and anionic amphiphilic lipid is from 2 to 20.

23. A cosmetic process for caring for and/or making up keratinic materials, comprising applying onto the keratinic materials the composition according to claim 1 , wherein the keratinic material is skin.