Solid composition and its uses, in particular its cosmetic uses

• US 6,905,695 B1
• Filed: 07/05/2000
• Issued: 06/14/2005
• Est. Priority Date: 07/12/1999
• Status: Expired due to Fees

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Boulier, Virginie, Afriat, Isabelle
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): Bennett, Rachel M.
• Application Number:
  US09/610,320
• Time in Patent Office: 1,805 Days
• Field of Search: 424/400, 424/401, 424/59
• US Class Current: 424/401
• CPC Class Codes: A61K 8/02 characterised by special physical form
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/064 Water-in-oil emulsions, e.g. Water-in-silicone emulsions
• CPC Class Codes: A61K 8/20 Halogens; Compounds thereof
• CPC Class Codes: A61K 8/585 Organosilicon compounds
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61K 8/92 Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
• CPC Class Codes: A61K 8/922 of vegetable origin
• CPC Class Codes: A61Q 1/04 for lips
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/008 Preparations for oily skin
• CPC Class Codes: A61Q 5/00 Preparations for care of the hair
• CPC Class Codes: C09K 23/54 Silicon compounds

Abstract

The invention relates to a solid composition in the form of a water-in-oil emulsion. The aqueous phase represents at least 70% by weight with respect to the total weight of the composition. The composition contains at least one silicone emulsifier and at least 3% by weight of at least one wax with respect to the total weight of the composition.

Claims

1. A solid composition comprising

an aqueous phase, and

an oily phase, which includes

a silicone emulsifier and

a wax, wherein

the aqueous phase is dispersed in the oily phase;

the aqueous phase is present in at least 75% by weight with respect to the total weight of the composition;

the wax is present in at least 3% by weight with respect to the total weight of the composition;

the solid composition exhibits a compressive strength of greater than or equal to 50 grams, at room temperature, after penetration by a cylindrical probe having a diameter of 0.8 cm into the composition over a thickness of 5 mm at a rate of 1 mm/s;

the oily phase/silicone emulsifier ratio by weight is equal to or greater than 5; and

the composition comprises at least 70% water with respect to the total weight of the composition.

2. The composition according to claim 1, wherein the silicone emulsifier is selected from the group consisting of dimethicone copolyols, alkyl or alkoxy dimethicone copolyols, crosslinked elastomeric solid organopolysiloxanes comprising at least one oxyalkylenated group, and mixtures thereof.

3. The composition according to claim 1, wherein the silicone emulsifier is selected from the group consisting of lauryl dimethicone copolyol, cetyl dimethicone copolyol, oleyl dimethicone copolyol, stearyl dimethicone copolyol, and mixtures thereof.

4. The composition according to claim 1, wherein said silicone emulsifier is a crosslinked elastomeric solid organopolysiloxane comprising at least one oxyethylene group.

5. The composition according to claim 2, wherein the silicone emulsifier is a crosslinked elastomeric solid organopolysiloxane, said organopolysiloxane obtained by an addition and crosslinking reaction in a non-aqueous medium, in the presence of a catalyst, of at least:

one first organopolysiloxane (i) having two vinyl groups in the, -position of the silicone chain per molecule; and

one second organopolysiloxane (ii) having at least one hydrogen atom bonded to a silicon atom per molecule and at least one oxyalkylenated group.

6. The composition according to claim 5, wherein the first organopolysiloxane (i) is a polydimethylsiloxane.

7. The composition according to claim 5, wherein the first organopolysiloxane (i) is an α

,ω

-dimethylvinylpolydimethylsiloxane.

8. The composition according to claim 5, wherein the second polyorganosiloxane (ii) is chosen from polydimethylsiloxanes having one or more hydrogen atoms and one or more oxyalkylenated groups bonded to a silicon atom via an alkylene radical having from 1 to 22 carbon atoms.

9. The composition according to claim 1, wherein the silicone emulsifier is an organopolysiloxane that is in the form of a gel obtained according to the following stages:

(a) mixing first and second organopolysiloxanes (i) and (ii);

(b) adding an oily phase to the mixture of the stage (a);

(c) polymerizing the first and second organopolysiloxanes (i) and (ii) in the oily phase in the presence of a platinum catalyst.

10. The composition according to claim 1, wherein the silicone emulsifier is present in an amount of 0.1 to 10% by weight with respect to the total weight of the composition.

11. The composition according to claim 1, wherein the wax is selected from the group consisting of waxes of animal origin, waxes of vegetable origin, mineral waxes, synthetic waxes, silicone waxes, hydrogenated oils which are solid at 25°

C., fatty esters which are solid at 25°

C., and mixtures thereof.

12. The composition according to claim 1, wherein the amount of wax in the composition ranges from 3 to 10% by weight with respect to the total weight of the composition.

13. The composition according to claim 1, wherein the oily phase is present in an amount ranging from 7 to 25% by weight with respect to the total weight of the composition.

14. The composition according to claim 1, wherein the oily phase/silicone emulsifier ratio by weight is equal to or greater than 8.

15. The composition according to claim 1, further comprising at least one electrolyte.

16. The composition according to claim 15, wherein said electrolyte is present in an amount ranging from 0.5 to 20% of the total weight of the composition.

17. The composition according to claim 1, further comprising an active principle selected from the group consisting of sunscreens, moisturizing agents, natural extracts, procyanidol oligomers, vitamins, urea, depigmenting agents, β

-hydroxy acids, α

-hydroxy acids, retinoids, screening agents and mixtures thereof.

18. The composition according to claim 1, wherein said composition is a cosmetic composition.

19. A method for treating, protecting, caring for, removing make-up from and/or cleansing the skin, lips and/or hair and/or for making up the skin and/or lips, comprising applying the composition of claim 1 to the hair, skin and/or lips.

20. A method for treating greasy skin, comprising applying the composition of claim 1 to greasy skin, wherein said composition is in the form of a cast cream.

21. A method of making a composition, the method comprising dispersing an aqueous phase in an oily phase;

and forming the composition of claim 1.

22. A method of using a composition, the method comprising preparing a cream from the solid composition of claim 1;

and applying the cream to skin.

23. The composition according to claim 1, wherein the wax is present in at least 5% by weight with respect to the total weight of the composition.

24. The composition according to claim 1, wherein the wax is present in 5% to 8% by weight with respect to the total weight of the composition.

25. The composition according to claim 1, wherein the aqueous phase is present in an amount ranging from 75% to 92% by weight with respect to the total weight of the composition.

26. The composition according to claim 12, wherein the aqueous phase is present in an amount ranging from 75% to 92% by weight with respect to the total weight of the composition.

27. The composition according to claim 1, wherein the oily phase comprises oils selected from the group consisting of silicone oils and hydrocarbon oils.

28. The composition according to claim 27, wherein the oils consist of hydrocarbon oils.

29. The composition according to claim 27, wherein the oils consist of silicone oils.