Hypoallergenic make-up or care composition comprising a crosslinked organopolysiloxane comprising an oxyalkylene group, and its uses

• US 6,419,912 B1
• Filed: 03/30/2000
• Issued: 07/16/2002
• Est. Priority Date: 03/30/1999
• Status: Expired due to Fees

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Lezer, Nathalie Jager
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): Di Nola-Baron, Liliana
• Application Number:
  US09/538,509
• Time in Patent Office: 838 Days
• Field of Search: 424/401, 424/63, 424/61, 424/59, 424/65, 424/64, 424/69, 424/70.1, 424/78.03, 524/27
• US Class Current: 424/78.03
• CPC Class Codes: A61K 2800/72 Hypo-allergenic
• CPC Class Codes: A61K 8/89 Polysiloxanes
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: C08G 77/46 containing polyether sequences
• CPC Class Codes: C08L 83/12 containing polyether sequences

Abstract

A hypoallergenic composition for making up or caring for keratinous substances which comprises an aqueous phase dispersed in a liquid fatty phase by means of particles of crosslinked elastomeric solid organopolysiloxane comprising at least one oxyalkylene group and in particular an oxyethylene group, the said composition additionally being devoid of cosurfactant. The invention also relates to the use of these particles of elastomeric solid organopolysiloxane in a hypoallergenic and fresh cosmetic composition or for the manufacture of a hypoallergenic and fresh care, treatment or make-up composition, comprising an aqueous phase dispersed in a liquid fatty phase.

Claims

1. A hypoallergenic composition suitable as a make up or care agent for keratinous substances, comprising:

an aqueous phase,

a liquid fatty phase,

particles of a crosslinked solid elastomeric organopolysiloxane comprising at least one oxyalkylene group,

4 to 60% by weight of a particulate phase containing pigments and/or pearlescent agents and/or fillers, and

30 to 60 milliosmol of electrolyte

wherein

the aqueous phase is dispersed in the liquid fatty phase, and

the composition is devoid of cosurfactant.

2. The composition of claim 1, wherein the elastomeric organopolysiloxane comprises at least one oxyethylene group.

3. The composition of claim 1, wherein the oxyalkylene groups consist of oxyethylene groups.

4. The composition of claim 1, wherein the elastomeric organopolysiloxane is obtained by a process comprising:

reacting, in a non-aqueous medium and in the presence of a catalyst, (i) a first organopolysiloxane having at least two vinyl groups in the α

,ω

-position of the silicone chain per molecule and (ii) a second organopolysiloxane having at least one hydrogen atom bonded to a silicon atom per molecule and at least one oxyalkylene group.

5. The composition of claim 4, wherein (i) is selected from the group consisting of polydimethylsiloxanes.

6. The composition of claim 4, wherein (i) is an α

,ω

-dimethylvinyl-polydimethylsiloxane.

7. The composition of claim 4, wherein (ii) is selected from the group consisting of polydimethylsiloxanes comprising one or more hydrogen atoms and one or more oxyalkylene groups bonded to a silicon atom via an alkylene radical having from 1 to 22 carbon atoms.

8. The composition of claim 4, wherein the organopolysiloxane particles are in the form of an anhydrous gel obtained by a process comprising:

(a) mixing (i) and (ii);

(b) adding the liquid fatty phase to the mixture from (a); and

(c) polymerizing (i) and (ii) in the liquid fatty phase in the presence of a platinum catalyst.

9. The composition of claim 1, wherein the organopolysiloxane particles are in the form of a gel having a viscoelastic behavior at 1 Hz of shear stress such as 800 Pa<

G*_plate<

500 Pa, wherein with G*_plate represents the consistency and with a δ

_plate in the region of 10°

, wherein δ

_plate is the elasticity.

10. The composition of claim 1, wherein the organopolysiloxane particles have a size from 3 to 200 μ

m.

11. The composition of claim 1, wherein the liquid fatty phase comprises one or more liquid hydrocarbonaceous and/or silicone oils.

12. The composition of claim 1, wherein the composition comprises at least one fatty substance selected from the group consisting of volatile or nonvolatile oils, waxes, gums and pasty fatty substances of animal, vegetable, mineral or synthetic origin, and mixtures thereof.

13. The composition of claim 1, wherein the elastomeric organopolysiloxane represents from 0.1 to 33% of the total weight of the composition.

14. The composition of claim 1, wherein the aqueous phase represents from 5 to 75% of the total weight of the composition.

15. The composition of claim 1, wherein the liquid fatty phase represents from 1 to 80% of the total weight of the composition.

16. The composition of claim 1, containing 5 to 35% by weight of the particulate phase.

17. The composition of claim 1, further comprising at least one cosmetic or dermatological active agent.

18. The composition of claim 1, which is in the form of a simple emulsion.

19. The composition of claim 1, which is in the form of a foundation, face powder or eyeshadow composition, of a concealer product, of a lipstick, of an eyeliner, of a mascara, of a product for making up the body, of a care base or of a fixing base for the lips, of a dermatological or care product for the skin or keratinous fibers, of a composition for antisun protection or artificial tanning, of a product for cleansing the skin or keratinous fibers, or a deodorant cream.

20. The composition of claim 1, further comprising at least one component selected from the group consisting of preservatives, fragrances, and gelling agents.

21. A method of preparing the composition of claim 1, comprising mixing the aqueous phase, liquid fatty phase, particles of a crosslinked solid elastomeric organopolysiloxane comprising at least one oxyalkylene group, the particulate phase, and the electrolyte.

22. A method of treating skin, comprising applying the composition of claim 1 to the skin.

23. The composition of claim 1, which contains the pigments.

24. The composition of claim 1, which contains the pearlescent agents.

25. The composition of claim 1, which contains the fillers.

26. A method of preparing a hypoallergenic make-up composition suitable for making-up human skin or lips, wherein the composition comprises an aqueous phase and a liquid fatty phase, comprising:

dispersing said aqueous phase in said liquid fatty phase with the aid of particles of crosslinked solid elastomeric organopolysiloxane having at least one oxyalkylene group and without a co-surfactant,

adding 4 to 60% by weight of a particulate phase containing pigments and/or pearlescent agents and/or fillers; and

adding from 30 to 60 milliosmol of electrolyte.