NON-TACKY PHOTOCROSSLINKABLE COSMETIC COMPOSITION

• US 20150297487A1
• Filed: 12/04/2013
• Published: 10/22/2015
• Est. Priority Date: 12/05/2012
• Status: Active Grant

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Kergosien, Guillaume, Riachi, Carl
• Granted Patent: US 10,639,256 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A45D 29/04 Nail files, e.g. manually operated
• CPC Class Codes: A45D 29/18 Manicure or pedicure sets, e.g. combinations without case, etui, or the like combined with or on sheath of scissors B26B13/22, B26B29/04
• CPC Class Codes: A45D 31/00 Artificial nails
• CPC Class Codes: A61K 2800/81 Preparation or application process involves irradiation
• CPC Class Codes: A61K 2800/95 Involves in-situ formation or cross-linking of polymers
• CPC Class Codes: A61K 8/40 containing nitrogen quinones containing nitrogen A61K8/355
• CPC Class Codes: A61K 8/44 Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• CPC Class Codes: A61K 8/45 Derivatives containing from 2 to 10 oxyalkylene groups
• CPC Class Codes: A61K 8/731 Cellulose; Quaternized cellulose derivatives
• CPC Class Codes: A61Q 3/02 Nail coatings

Abstract

The present invention relates to a photocrosslinkable cosmetic composition, comprising in a physiologically acceptable medium: —at least one photocrosslinkable urethane (meth)acrylate compound P1 comprising at least one structural unit: (I) —at least one photocrosslinkable urethane (meth)acrylate compound P2 comprising at least one polyether chain, said compound having a molar mass greater than or equal to 1000 g/mol, —at least one film-forming polymer P3, —at least one photoinitiator, and —at least one volatile solvent chosen from acetone, ethyl acetate, and propyl acetate, said solvent being present in said composition at a content greater than or equal to 20%, preferably greater than or equal to 30%, by weight in relation to the total weight of said composition, wherein the ratio of the total mass of P1 and P2 to the total mass of P3 is less than or equal to 4.0.

Claims

1. Photocrosslinkable cosmetic composition, comprising in a physiologically acceptable medium:

at least one photocrosslinkable urethane (meth)acrylate compound P1 comprising at least one structural unit;

2. Composition according to claim 1, wherein P1 is a urethane dimethacrylate compound.

3. Composition according to any of claims 1 and 2, wherein P1 is of formula (I):

4. Composition according to any of claims 1 to 3, wherein P1 has a dynamic viscosity greater than or equal to 20 Pa·

s at 20°

C.

5. Composition according to any of claims 1 to 4, wherein P2 is of formula (III):

6. Composition according to any of claims 1 to 5, wherein the polyether chain of P2 has a molar mass less than or equal to 1000 g/mol.

7. Composition according to any of claims 1 to 6, wherein the polyether chain of P2 is of formula —

[C_nH_2nO]_m—

, wherein n is an integer ranging from 1 to 6 and m is an integer ranging from 2 to 50.

8. Composition according to claim 7, wherein n=2 and m ranges from 2 to 20.

9. Composition according to any of claims 1 to 8, wherein P3 is chosen from the group consisting of nitrocellulose, cellulose acetopropionate, cellulose acetobutyrate, and (meth)acrylate homopolymers and copolymers.

10. Composition according to any of claims 1 to 9, wherein P3 is nitrocellulose.

11. Composition according to any of claims 1 to 10, wherein the ratio of the total mass of P1 and P2 to the total mass of P3 is less than or equal to 2.5, preferably ranging from 0.25 to 2.5, preferentially ranging from 0.5 to 2.0.

12. Composition according to any of claims 1 to 11, wherein the photoinitiator is chosen from the group consisting of α

-hydroxyketones, α

-aminoketones, aromatic ketones preferably associated with a hydrogen donor compound, aromatic α

-diketones, and acylphosphine oxides.

13. Composition according to any of claims 1 to 12, wherein the volatile solvent content by weight in said composition ranges from 30% to 80%, preferentially from 50% to 70%, in relation to the total weight of the composition.

14. Composition according to any of claims 1 to 13, further comprising a coloring agent chosen from the group consisting of soluble dyes, pigments, nacres and glitter.

15. Composition according to any of claims 1 to 14, comprising:

from 1% to 20% by weight of a photocrosslinkable urethane dimethacrylate compound P1 according to formula (I) as defined in claim 3,

from 1% to 20% by weight of a photocrosslinkable urethane dimethacrylate compound P2 comprising a poly(ethyleneglycol) chain,

from 10% to 30% by weight of nitrocellulose,

from 30% to 80% by weight of ethyl acetate, and

from 0.1% to 5% by weight of an acylphosphine oxide photoinitiator, an α

-hydroxyketone photoinitiator, or a mixture thereof,

wherein the percentages are expressed in relation to the total weight of said composition.

16. Composition according to any of claims 1 to 15, wherein the proportion of (meth)acrylate monomers is less than or equal to 10% by weight in relation to the total weight of said composition.

17. Makeup and/or care method of a nail and/or false nail, comprising the following steps:

a) applying, onto a nail or a false nail, a photocrosslinkable composition according to any of claims 1 to 16, whereby a coat consisting of at least one layer of said photocrosslinkable composition is deposited, and

b) exposing the coated nail or false nail obtained following step a) to UV or visible light radiation, whereby the photocrosslinking of the photocrosslinkable compounds P1 and P2 of said composition is carried out.

18. Kit comprising:

a photocrosslinkable cosmetic composition according to any one of claims 1 to 16,

an abrasive material having a granulometry greater than or equal to 200 μ

m, preferably less than 300 μ

m, advantageously comprised from 220 μ

m to 280 μ

m, and

a LED lamp or an UV lamp.

19. Makeup and/or care method of a nail and/or false nail, comprising the following steps:

i) rubbing the surface of a nail or false nail with an abrasive material having a granulometry greater than or equal to 200 μ

m, preferably less than 300 μ

m, advantageously comprised from 220 μ

m to 280 μ

m,

ii) applying a photocrosslinkable composition according to any one of claims 1 to 16 onto the surface of the nail or false nail which has been rubbed following step i), whereby a coat consisting of at least one layer of said photocrosslinkable composition is deposited, and

iii) exposing the coated nail or false nail obtained following step ii) to a LED lamp or an UV lamp, whereby the photocrosslinking of the photocrosslinkable composition is carried out.