Photo-crosslinkable varnish compositions as base coating and application methods

Patent metadata

Field	Value
Publication number	US-2016296456-A1
Application number	US-201415100578-A
Country	US
Kind code	A1
Filing date	Nov 28, 2014
Priority date	Dec 4, 2013
Publication date	Oct 13, 2016
Grant date	—

Abstract

The present invention relates to a kit for coating a nail or false nail, and more particularly for making up a nail or false nail, comprising: —a first photo-crosslinkable cosmetic composition comprising, in a physiologically acceptable medium, at least one photo-crosslinkable compound a) corresponding to formula (I) in which formula (I) —R 1 , R 2 and R 3 , which may be identical or different, represent a hydrogen atom or a C 1 -C 10 alkyl group, n represents an integer between 1 and 10, —the bond between α and β of the carbonyloxy is a single bond or a double bond or is a bond included in a (hetero)cycle comprising from 5 to 7 carbon atoms; and —a second photo-crosslinkable composition comprising, in a physiologically acceptable medium: • at least one photo-crosslinkable compound b) comprising at least one (poly)urethane poly(ALK)acrylate compound comprising a (poly)oxyalkylene unit, • at least one photo-crosslinkable compound c) comprising at least two carbamate units obtained by reaction with at least one diisocyanate of isophorone diisocyanate type. • at least one (ALK)acrylate monomer, preferably (meth)acrylate monomer, more preferentially tetrahydrofurfuryl methacrylate. The present invention also relates to specific methods for applying such a composition.

First claim

1 : A kit comprising:
a first photo-crosslinkable composition comprising, in a physiologically acceptable medium, a photo-crosslinkable compound a) corresponding to formula (I) below:

wherein:
R 1 , R 2 and R 3 , which may be identical or different, represent a hydrogen atom or a C 1 -C 10 alkyl group,
n represents an integer between 1 and 10,
the bond between α and β of the carbonyloxy is a single bond or a double bond or is a bond included in a (hetero)cycle comprising from 5 to 7 carbon atoms, wherein the (hetero)cycle may be aromatic or non-aromatic; and
a second photo-crosslinkable composition comprising, in a physiologically acceptable medium:
a photo-crosslinkable compound b) comprising a (poly)urethane poly(ALK)acrylate compound and a (poly)oxyalkylene unit,
a photo-crosslinkable compound c) comprising at least two carbamate units obtained by reaction with at least one diisocyanate of an isophorone diisocyanate type, and
an (ALK)acrylate monomer.

2 : The kit of claim 1 , wherein the compound a) is present in the first composition in a content greater than or equal to 10% by weight, relative to a weight of total solids of the first composition.

3 : The kit of claim 1 , wherein the first composition further comprises a photo-crosslinkable compound b) comprising a (poly)urethane poly(ALK)acrylate compound and a (poly)oxyalkylene unit.

4 : The kit of claim 1 , wherein the compound b) has a formula (II) below:

wherein:
R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be identical or different, represent a hydrogen atom or a C 1 -C 10 alkyl chain,
k and l, which may be identical or different, are between 1 and 10,
m is between 1 and 100,
n is between 1 and 10, and
X and Y, which may be identical or different, represent a C 1 -C 20 alkyl or cycloalkyl group.

5 : The kit of claim 3 , wherein the first composition comprises the compound b) in a content greater than or equal to 20% by weight, relative to k total weight of solids of the first composition.

6 : The kit of claim 1 , wherein the compound b) is present in the second composition in a content greater than or equal to 10% by weight, relative to g total weight of solids of the second composition.

7 : The kit of claim 1 , wherein the compound c) has a formula (IV) below:

wherein:
R 1 , R 2 , R 3 and R 4 , which may be identical or different, represent a hydrogen atom or a C 1 -C 10 alkyl chain,
j is between 1 and 10, and
A represents a C 1 -C 10 alkyl group, or a polyurethane comprising from 2 to 20 carbamate units.

8 : The kit of claim 1 , wherein the compound c) is present in the second composition in a content greater than or equal to 5% by weight, relative to a total weight of solids of the second composition.

9 : The kit of claim 1 , wherein the first composition, the second composition, or both, further comprise a film-forming polymer.

10 : The kit of claim 1 , wherein the first composition further comprises at least one film-forming polymer selected from the group consisting of a poly(meth)acrylate, a derivative of a poly(meth)acrylate, a polysaccharide, and a derivative of a polysaccharide.

11 : The kit of claim 1 , wherein the second composition further comprises at least one film-forming polymer selected from the group consisting of a polysaccharide and a polysaccharide derivative.

12 : The kit of claim 9 , wherein the film-forming polymer comprises a poly(meth)acrylate corresponding to formula (III) below:

wherein:
R 1 , R 2 and R 3 , which may be identical or different, represent a hydrogen atom or a C 1 -C 10 alkyl group,
x and y, which may be identical or different, represent an integer between 1 and 100,
z represents an integer between 0 and 100, and
n represents an integer between 1 and 1000.

13 : The kit of claim 9 , wherein the film-forming polymer comprises at least one selected from the group consisting of nitrocellulose, an ether of a polysaccharide, and an ester of a polysaccharide.

14 : The kit of claim 9 , wherein the film-forming polymer is present in the first composition in a total content greater than or equal to 20% by weight, relative to a total weight of solids of the first composition.

15 : The kit of claim 9 , wherein the film-forming polymer is present in the second composition in a total content greater than or equal to 0.05% by weight, relative to a total weight of solids of the second composition.

16 : The kit of claim 1 , wherein the first composition further comprises a volatile solvent.

17 : The kit of claim 16 , wherein the volatile solvent is present in the first composition in a total content greater than or equal to 30% by weight, relative to a total weight of the first composition.

18 : The kit of claim 1 , wherein the first composition, the second composition, or both, further comprise a photoinitiator.

19 : The kit of claim 1 , wherein the first composition further comprises an (ALK)acrylate monomer.

20 : The kit of claim 19 , wherein the (ALK)acrylate monomer is present in the first composition in a total content greater than or equal to 0.1% by weight, relative to a total weight of solids of the first composition.

21 : The kit of claim 1 , wherein the second composition further comprises an (ALK)acrylate monomer, present in the second composition in a total content greater than or equal to 2% by weight, relative to a total weight of solids of the second composition.

22 : A method for coating nails and/or false nails, comprising:
A) applying, to a nail or a false nail, the first photo-crosslinkable composition of the kit of claim 1 , to obtain a first coated nail or false nail, B) exposing the first coated nail or false nail in A) to a UV or visible light radiation, C) applying, to the first coated nail or false nail obtained in A) or B), the second composition of the kit of claim 1 , to obtain a second coated nail or false nail, and D) exposing the second coated nail or false nail obtained in C) to a UV or visible light radiation.

23 : A method for coating nails and/or false nails, comprising:
A) applying, to a nail or a false nail, the first photo-crosslinkable composition of the kit of claim 1 , to obtain a first coated nail or false nail, B) exposing the first coated nail or false nail in A) to a UV or visible light radiation, C) applying, to the first coated nail or false nail obtained in A) or B), the second composition of the kit of claim 1 , to obtain a second coated nail or false nail, D) exposing the second coated nail or false nail in C) to a UV or visible light radiation, E) applying, to the second coated nail or false nail obtained in C) or D), a third composition, distinct from the first composition and from the second composition, to obtain a third coated nail or false nail, and F) exposing the third coated nail or false nail obtained in E) to a UV or visible light radiation.

24 : The method of claim 23 , wherein, when the third composition is applied, the second composition comprises a coloring a

Assignees

• Oreal

Inventors

• Kergosien Guillaume
• Riachi Carl
• Le Pape Marina

Classifications

• A61Q3/02

  Nail coatings · CPC title

• A61K2800/81

  Preparation or application process involves irradiation · CPC title

• A61K8/8152

  Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers · CPC title

• A61K2800/884

  Sequential application · CPC title

• A61K8/731

  Cellulose; Quaternized cellulose derivatives · CPC title