AEROSOL COMPOSITION COMPRISING A SILICONE FUNCTIONALIZED WITH AT LEAST ONE ALKOXYSILANE UNIT AND AN AMPHOTERIC AND/OR CATIONIC FIXING POLYMER

Abstract

The present invention relates to an aerosol device comprising a container containing: one or more propellants, a hair composition comprising: (i) one or more polymers containing a silicone unit bearing alkoxy-(aminomethyl)-silyl functional groups; (ii) one or more amphoteric fixing polymers and/or one or more cationic fixing polymers; the propellant(s) possibly being present in the composition or, in the container, separate from the composition.

Claims

1. Aerosol device comprising a container containing: one or more propellants, a hair composition comprising: (i) one or more polymers containing a silicone unit bearing alkoxy-(aminomethyl)-silyl functional groups; (ii) one or more amphoteric fixing polymers and/or one or more cationic fixing polymers; the propellant(s) possibly being present in the composition or, in the container, separate from the composition.

2. Device according to claim 1, in which the polymer(s) containing a silicone unit bearing alkoxy-(aminomethyl)-silyl functional groups are chosen from the compounds of formula (I) below: ##STR00015## in which formula (I): Z.sub.2 represents a group CH.sub.2NR.sub.3R.sub.4; Z.sub.3 represents a group OR.sub.5 or R.sub.6; R.sub.1 represents a C.sub.1-C.sub.6 alkyl group, R.sub.3 represents a hydrogen atom or a group R.sub.7; R.sub.4 represents a C.sub.1-C.sub.6 alkyl group or a C.sub.5-C.sub.6 cycloalkyl group; or R.sub.3 and R.sub.4 possibly forming, with the nitrogen atom that bears them, a 5- to 8-membered heterocycle comprising from 1 to 3 heteroatoms, R.sub.5, R.sub.6 and R.sub.7, which may be identical or different, represent a C.sub.1-C.sub.6 alkyl group, and R.sub.a and R.sub.b, which may be identical or different, represent a C.sub.1-C.sub.2 alkyl group, n represents an integer greater than 1.

3. Device according to claim 2, in which the C.sub.1-C.sub.6 alkyl groups are methyl or ethyl groups.

4. Device according to the preceding claim, in which R.sub.3 and R.sub.4 form, with the nitrogen atom that bears them, a 5- to 8-membered heterocycle comprising from 1 to 3 heteroatoms.

5. Device according to the preceding claim, in which R.sub.3 and R.sub.4 form, with the nitrogen atom that bears them, a cyclic group, preferably morpholino, and R.sub.5 represents an ethyl group.

6. Device according to any one of claims 2 to 5, in which n ranges from 1 to 10 000, preferably from 5 to 1000 and even more preferably from 8 to 400.

7. Device according to any one of claims 2 to 6, in which SiR.sub.aR.sub.b[OSiR.sub.aR.sub.b]n- of formula (I) is a unit derived from a linear silicone with a weight-average molecular mass (Mw) ranging from 200 to 40 000 and more preferentially from 400 to 25 000 g/mol.

8. Device according to any one of the preceding claims, in which the polymer(s) containing a silicone unit bearing alkoxy-(aminomethyl)-silyl functional groups, preferably of formula (I), represent from 0.1% to 40% by weight, preferably from 0.5% to 30% by weight and more particularly from 1% to 10% by weight relative to the total weight of the composition, when the propellant(s) are present in the composition.

9. Device according to any one of the preceding claims, in which the cationic polymer(s) are chosen from the following polymers, alone or as mixtures: (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and comprising at least one of the units of formula (A), (B), (C) and (D) below: ##STR00016## in which: R.sub.1 and R.sub.2, which may be identical or different, represent a hydrogen atom or an alkyl group containing from 1 to 6 carbon atoms; R.sub.3, which may be identical or different in each formula, denotes a hydrogen atom or a CH.sub.3 radical; A, which may be identical or different in each formula, denotes a linear or branched alkyl group comprising from 1 to 6 carbon atoms or a hydroxyalkyl group comprising from 1 to 4 carbon atoms; R.sub.4, R.sub.5 and R.sub.6, which may be identical or different in each formula, represent an alkyl group containing from 1 to 18 carbon atoms or a benzyl radical; X.sup. denotes a methosulfate anion or a halide such as chloride or bromide, (2) cationic guar gums, preferably containing quaternary ammonium, (3) quaternary copolymers of vinylpyrrolidone and of vinylimidazole, (4) chitosans or salts thereof, (5) cationic cellulose derivatives, (6) copolymers of vinylamine and of N-vinylformamide.

10. Device according to any one of the preceding claims, characterized in that the amphoteric fixing polymer(s) are chosen from copolymers containing acidic vinyl units and containing basic vinyl units, crosslinked and acylated polyamino amides, polymers containing zwitterionic units, chitosan-based polymers, modified (C1-C5)alkyl vinyl ether/maleic anhydride copolymers, polymers comprising units derived a) from at least one monomer chosen from acrylamides and methacrylamides substituted on the nitrogen atom with an alkyl group, b) from at least one acidic comonomer containing one or more reactive carboxylic groups, and c) from at least one basic comonomer, and preferably from polymers comprising units derived a) from at least one monomer chosen from acrylamides and methacrylamides substituted on the nitrogen atom with an alkyl group, b) from at least one acidic comonomer containing one or more reactive carboxylic groups, and c) from at least one basic comonomer.

11. Device according to any one of the preceding claims, characterized in that the cationic and/or amphoteric fixing polymer(s) are present in the composition in a content ranging from 0.5% to 20% and preferably from 1% to 10% by weight relative to the total weight of the composition, when the propellant(s) are present in the composition.

12. Device according to any one of the preceding claims, in which the composition comprises at least one organic solvent, preferably chosen from alcohols, alkanes, esters and silicones, and mixtures thereof, preferentially chosen from ethanol, propanol, isopropanol, glycerol, undecane, tridecane, isododecane, isopropyl myristate, ethyl adipate, ethyl acetate, linear low-molecular-weight silicones or cyclic silicones such as cyclopentasiloxane, and also mixtures thereof, and more preferably from ethanol and isopropanol, and mixtures thereof.

13. Device according to the preceding claim, characterized in that the organic solvent(s) represent from 10% to 99.8%, preferably from 30% to 98% by weight and better still from 35% to 95% by weight relative to the total weight of the composition, when the propellant(s) are present in the composition.

14. Device according to any one of the preceding claims, characterized in that the composition comprises less than 5% by weight of water, preferably less than 3% by weight of water and more preferably less than 1% by weight of water relative to the total weight of the composition, when the propellant(s) are present in the composition.

15. Device according to any one of the preceding claims, in which the composition comprises one or more catalysts, preferably chosen from organic or mineral basic compounds, especially ammonia or sodium hydroxide, organic or mineral acids, especially hydrochloric acid, oleic acid or lactic acid, and mixtures thereof.

16. Device according to claim 14, characterized in that, when the propellant(s) are present in the composition, the catalyst(s) are present in the composition in a content ranging from 0.0001% to 10% by weight, preferably from 0.001% to 5% by weight and better still from 0.01% to 2% by weight relative to the total weight of the composition.

17. Device according to any one of the preceding claims, characterized in that the propellent gas(es) are chosen from compressed air, nitrogen, carbon dioxide, dimethyl ether, volatile hydrocarbons such as, in particular, C.sub.3-C.sub.5 alkanes, chlorinated and/or fluorinated hydrocarbons such as 1,1-difluoroethane and mixtures thereof, preferably chosen from compressed air, dimethyl ether, 1,1-difluoroethane and C.sub.3-C.sub.5 alkanes and in particular n-butane, propane and isobutane, and mixtures thereof.

18. Device according to any one of the preceding claims, characterized in that, when the propellant(s) are present in the composition, the propellant(s) are present in an amount ranging from 10% to 90% by weight, even better still from 15% to 80% by weight and even more preferentially from 20% to 75% relative to the total weight of the composition.

19. Process for shaping and/or holding the hairstyle, characterized in that it consists in applying to the hair, by means of a device according to any one of claims 1 to 18, an effective amount of a composition contained in said device.

Description

EXAMPLE

[0168] Composition A according to the invention and composition B were prepared from the ingredients indicated in the table below, in grams of active material:

TABLE-US-00001 A B invention control Polymer Ic (MW = 13 100) 2.2 Octylacrylamide/acrylates/butylaminoethyl 4.4 4.4 methacrylate copolymer .sup.(1) Dimethyl ether 45 45 Isopropanol qs 100 qs 100 .sup.(1) Sold under the trade name Amphomer by Akzo Nobel

[0169] The compositions prepared above were introduced into an aerosol dispensing device which has the following characteristics: [0170] a valve equipped with a nozzle with an orifice 0.41 mm in size and an internal orifice 2.03 mm in size, [0171] a diffuser equipped with a turbulent-channel nozzle whose orifice is 0.38 mm in diameter.

[0172] 1.5 g of these aerosol compositions were sprayed onto 5.4 g locks of dry hair laid out in a fan shape (spraying on both sides).

[0173] A level of fixing with composition A according to the invention equivalent to that obtained with composition B is obtained. The fixing is also longer-lasting with composition A according to the invention than with composition B. The fixing hold in wet medium is also improved with composition A according to the invention relative to composition B.

[0174] Moreover, a much smoother feel of the hair is obtained from the start of drying of composition A, and even more so after drying.