Photoprotective cosmetic compositions containing aromatic amide, sulphonamide or carbamate derivatives of acrylonitrile and novel aromatic amide, sulphonamide or carbamate derivatives of acrylonitrile
Cosmetic compositions for topical use for protecting the skin and the hair, containing, in a cosmetically acceptable support, at least one compound of formula (1) or (2) in which X 1 represents R 3 —(C═O)—, R 3 —SO 2 — or R 3 —O—(C═O)—, X 2 represents —(C═O)—R′ 3 —(C═O), —SO 2 —R′ 3 —SO 2 — or —(C═O)—O—R′ 3 —O—(C═O)—, Y represents —(C═O)—R 4 or —SO 2 R 5 , R 2 represents a C 1-8 alkyl group, n is 0, 1 or 2, R 3 represents C 1-30 alkyl or C 3-30 alkenyl, R′ 3 represents a single bond or a divalent C 1-30 alkylene or C 3-30 alkenylene radical, R 4 represents —OR 6 or —NHR 6 , R 5 represents C 1-30 alkyl or a phenyl nucleus, R 6 represents C 1-30 alkyl or C 3-30 alkenyl, and novel compounds of formula (2).
1. Cosmetic composition for topical use, in particular intended for photoprotecting the skin and/or the hair, containing, in a cosmetically acceptable support, at least one compound of formula (2)
in which
X 2 represents a divalent radical of formula —(C═O)—R′ 3 —(C═O)—, —S 2 —R′ 3 —SO 2 — or —(C═O)—O—R′ 3 —O—(C═O)—,
Y represents a radical —(C═O)—R 4 or —SO 2 R 5 ,
R 2 represents a linear or branched C 1-8 alkyl group,
n is 0, 1 or 2,
R′ 3 represents a single bond or a linear or branched divalent C 1-30 alkylene or C 3-30 alkenylene radical, possibly bearing one or more hydroxyl substituents and possibly containing, in the carbon chain, one or more hetero atoms chosen from oxygen, nitrogen and silicon atoms,
R 4 represents a radical —OR 6 or —NHR 6 ,
R 5 represents a linear or branched C 1-30 alkyl radical or a phenyl nucleus that is unsubstituted or substituted with C 1-4 alkyl or alkoxy radicals,
R 6 represents a linear or branched C 1-30 alkyl or C 3-30 alkenyl radical, optionally bearing one or more hydroxyl substituents and further optionally containing, in the carbon chain, one or more hetero atoms chosen from oxygen, nitrogen and silicon atoms.
2. Cosmetic composition according to claim 1 , characterized in that
X 2 represents a radical —(C═O)—CH 2 —CH 2 —(C═O)—,
Y represents a radical —(C═O)—R 4 ,
n is 0,
R 4 represents a radical —O—R 6 , and
R 6 represents a linear or branched C 1-30 alkyl radical optionally containing one or more silicon atoms.
3. Cosmetic composition according to claim 1 , characterized in that the compound(s) of formula (2) is(are) present in a proportion of from 0.1% to 20% by weight of the cosmetic composition.
4. Cosmetic composition according to claim 1 , characterized in that it also contains one or more organic sunscreens that are active in the UV-A and/or UV-B range, other than those of formula (2).
5. Cosmetic composition according to claim 4 , characterized in that the organic sunscreens that are active in the UV-A and/or UV-B range, other than those of formulae (2), are chosen from salicylic derivatives, benzylidenecamphor derivatives, triazine derivatives, benzophenone derivatives, cinnamic derivatives, β,β′-diphenylacrylate derivatives, phenylbenzimidazole derivatives, anthranilic derivatives, imidazoline derivatives, methylenebis(hydroxyphenylbenzotriazole) derivatives, p-aminobenzoic acid derivatives, screening hydrocarbon polymers and screening silicones.
6. Cosmetic composition according to claim 5 , characterized in that the organic sunscreens that are active in the UV-A and/or UV-B range, other than those of formulae (2), are chosen from the following: ethylhexyl salicylate, ethylhexyl methoxycinnamate, octocrylene, phenylbenzimidazolesulphonic acid, terephthalylidenedicamphorsulphonic acid, benzophenone-3, benzophenone-4, benzophenone-5, 4-methylbenzyl idenecamphor, benzimidazilate, anisotriazine, ethylhexyltriazone, diethylhexylbutamidotriazone, methylenebis(benzotriazolyl)tetramethylbutylphenol, drometrizoletrisiloxane, and mixtures thereof.
7. Cosmetic composition according to claim 1 , characterized in that it also contains one or more mineral pigments chosen from nanopigments of metal oxides such as titanium oxide, iron oxide, zinc oxide, zirconium oxide and cerium oxide, that are optionally coated, and mixtures thereof.
8. Cosmetic composition according to claim 1 , characterized in that it also contains at least one agent for artificially tanning and/or browning the skin.
9. Cosmetic composition according to claim 1 , characterized in that it also contains one or more adjuvants chosen from fatty substances, organic solvents, thickeners, antioxidants, opacifiers, stabilizers, antifoams, fragrances, preserving agents, fillers, sequestering agents, propellants, pH regulators, colorants, and cosmetic active principles.
10. Cosmetic composition for protecting the skin against UV rays, according to claim 1 , characterized in that it is in the form of a lotion, a suspension, a dispersion, an emulsion, a gel, a cream-gel, an ointment, a solid tube, an aerosol mousse or a spray.
11. Cosmetic composition for protecting the hair against UV rays, according to claim 1 , characterized in that it is in the form of a shampoo, a lotion, a gel, a rinse-out composition, a styling or treating lotion or gel, a blow-drying or hairsetting lotion or gel, a permanent-waving, straightening, dyeing or bleaching composition for the hair or a hair lacquer.
12. Cosmetic composition for making up the eyelashes, the eyebrows, the skin or the hair according to claim 1 , characterized in that it is in the form of an epidermal treatment cream, a foundation, a tube of lipstick, an eyeshadow, a face powder, a mascara, an eyeliner or a colouring gel.
13. Non-therapeutic process for protecting the skin and/or the hair against solar radiation, characterized in that it consists in applying to the skin and/or the hair an effective amount of a cosmetic composition according to claim 1 .