COSMETIC COMPOSITION WITH ENHANCED PHOTOPROTECTION PROPERTIES

1 . A cosmetic composition comprising a UV filter and a polymer, wherein said polymer comprises :

a) a monomeric unit derived from a monomer represented by the general formula (I):

wherein R 1 represents H or a C 1 -C 10 alkyl which is optionally substituted, R2 represents a C 2 -C 30 alkyl which is optionally substituted or a bicycloheptenyl group, m represents 0 or an integer of 1 to 100, n represents an integer of 1 to 100;

b) a monomeric unit derived from a monomer selected from an ethylenically unsaturated carboxylic acid having 1 to 6 carbon atoms; a styrene-based compound and a vinyl acetate; and

c) a monomer unit derived from an ester of ethylenically unsaturated carboxylic acid having 1 to 6 carbon atoms.

2 . The composition according to claim 1 , wherein R 2 as defined in general formula (I) represents a bicycloheptenyl group derived from a terpenic compound having a core (non-substituted) 7 carbon atom bicyclic ring system according to any one of (II) to (V.b) :

3 . The composition according to claim 1 , wherein m represents an integer of 1 to 50, n represents an integer of 5 to 80.

4 . The composition according to any one of claims 1 to 3 claim 1 , wherein the content of said monomeric unit (a) is 4 to 15 wt %, the content of said monomeric unit (b) is 30 to 50 wt %, and the content of said monomeric unit (c) is 30 to 70 wt %, based on total weight of the polymer.

5 . The composition according to claim 1 , wherein said monomeric unit (a) comprises :

(al) a monomeric unit derived from a monomer represented by the general formula (VI):

wherein R 11 represents H or a Ci-Cio alkyl which is optionally substituted,

R12 represents a C 2 -C 30 alkyl which is optionally substituted, m represents 0 or an integer of 1 to 100, n represents an integer of 1 to 100;

(a2) a monomeric unit derived from a monomer represented by the following formula (VII):

wherein R21 represents H or a C 1 -C 10 alkyl which is optionally substituted,

R22 represents a bicycloheptenyl group,

represents 0 or an integer of 1 to 100,

q represents an integer of 1 to 100.

6 . The composition according to claim 5 , wherein R 22 as defined in general formula (VII) represents a bicycloheptenyl group derived from a terpenic compound having a core (non-substituted) 7 carbon atom bicyclic ring system according to any one of (II) to (V.b) :

7 . The composition according to claim 5 , wherein R 22 as defined in general formula (VII) is a bicyclo[d.e.f]heptenyl, wherein: d is 2, 3, or 4, e is 1 or 2, f is 0 or 1, and the sum of d+e+f =5, each ring carbon atom is optionally substituted with a Ci-C6 alkyl group.

8 . The composition according to any one of claims 5 to 7 claim 5 , wherein R22 as defined in general formula (VII) is selected from:

9 . The composition according to claim 5 , wherein m represents an integer of 1-50, n represents an integer of 5-80, p represents an integer of 1-50, and q represents an integer of 5-80.

10 . The composition according to claim 1 , wherein said monomeric unit (b) is derived from a (meth)acrylic acid.

11 . The composition according to claim 1 , wherein said monomeric unit (c) is derived from a C 1 to C 10 alkyl ester of (meth)acrylate.

12 . The composition according to any one of claims 1 to 11 claim 1 , wherein the UV filter comprises a UV-absorbing organic UV filter, an inorganic (nano)pigment or a mixture thereof.

13 . (canceled)

14 . (canceled)

15 . A method for enhancing SPF of a cosmetic composition containing a UV filter, comprising the step of adding a polymer to said cosmetic composition; wherein said polymer comprises :

a) a monomeric unit derived from a monomer represented by the general formula (I):

wherein R 1 represents H or a C 1 -C 10 alkyl which is optionally substituted,

R2 represents a C2-C30 alkyl which is optionally substituted or a bicycloheptenyl group,

m represents 0 or an integer of 1 to 100,

n represents an integer of 1 to 100;

b) a monomeric unit derived from a monomer selected from an ethylenically unsaturated carboxylic acid having 1 to 6 carbon atoms; a styrene-based compound and a vinyl acetate; and

c) a monomer unit derived from a Ci-Cio alkyl ester of ethylenically unsaturated carboxylic acid having 1 to 6 carbon atoms.

16 . The method of claim 15 , wherein said monomeric unit (a) comprises :

(a 1 ) a monomeric unit derived from a monomer represented by the general formula (VI):

wherein R 11 represents H or a C 1 -C 10 alkyl which is optionally substituted,

R 12 represents a C 2 -C 30 alkyl which is optionally substituted,

m represents 0 or an integer of 1 to 100,

n represents an integer of 1 to 100;

(a2) a monomeric unit derived from a monomer represented by the following formula (VII):

wherein R 21 represents H or a C 1 -C 10 alkyl which is optionally substituted,

R 22 represents a bicycloheptenyl group,

p represents 0 or an integer of 1 to 100,

q represents an integer of 1 to 100.