Patent ID: 7285285

Claim:
A cosmetic composition comprising, at least one cosmetically acceptable solvent, and at least one photoactivatable diazirine-active compound of a diazirine covalently bonded to a cosmetic active agent, wherein the cosmetic active agent is chosen from sunscreens, mineral particles, polystyrenes, polyethylene oxide polymers, and polypropylene oxide polymers, and dyes, and wherein the diazirine is chosen from diazirines of formula (l): wherein: —R 1 is chosen from a hydrogen atom, linear and branched C 1 to C 10 alkyl radicals, linear and branched C 2 to C 10 alkenyl radicals, linear and branched C 2 to C 10 alkynyl radicals, CF 3 , CCl 3 , CBr 3 , N(R′) 3 +, S(R′) 2 +, SH 2 +, NH 3 +, NO 2 , SO 2 R′, C≡N, COOH, F, Cl, Br, l, OR′, COOR′, SO 3 H, COR′, SH, SR′ and OH radicals, wherein R′ is chosen from C 1 to C 10 alkyl radicals; —Z is chosen from a single bond and a spacer group, wherein the spacer group is a carbon-based chain chosen from linear, branched and cyclic, saturated and unsaturated C 1 -C 100 carbon-based chains, wherein said carbon-based chain may be interrupted with at least one hetero atom chosen from sulphur, oxygen, nitrogen, silicon, anphosphorous atoms and may also comprise at least one substituent chosen from hydroxl, amine, thiol, carbamate, ether, acid, ester, amide, cyano, and ureido groups; —Y is an N-hydroxysuccinimide ester; and —Ar is an aromatic nucleus wherein: —R 2 , R 3 , R 4 and R 5 , which may be identical or different, are each chosen from a hydrogen atom, linear and branched C 1 to C 10 alkyl radicals, linear and branched C 2 to C 10 alkenyl radicals, linear and branched C 2 to C 10 alkynyl radicals, CF 3 , CCl 3 , CBr 3 , N(R′) 3 +, S(R′) 2 +, SH 2 +, NH 3 +, NO 2 , SO 2 R′, C≡N, COOH, F, Cl, Br, l, OR′, COOR′, COR′, SH, SR′, OH and SO 3 H radicals, wherein R′ is chosen from C 1 to C 10 alkyl radicals.