Patent ID: 6159456
Filing Date: 2000-12-12
Classification: A61K,A61P,A61Q

Abstract:
A topically applicable sunscreen/cosmetic composition suited for the photoprotection of human skin and/or hair, comprising synergistically UV-photoprotecting effective amounts of each of (i) benzene-1,4-di(3-methylidene-10-camphorsulfonic acid), or partially or completely neutralized form thereof, and (ii) at least one bisresorcinyltriazine compound having the structural formula: ##STR6## in which the R.sub.1 and R.sub.2 radicals, which may be identical or different, are each a C.sub.3 -C.sub.18 alkyl radical, a C.sub.2 -C.sub.18 alkenyl radical, or a residue of formula --CH.sub.2 --CH(OH)--CH.sub.2 --OT.sub.1 wherein T.sub.1 is a hydrogen atom or a C.sub.1 -C.sub.8 alkyl radical; with the proviso that the R.sub.1 and R.sub.2 radicals, which again may be identical or different, can also be a residue having the following formula (1): ##STR7## in which R.sub.6 is a covalent bond, a linear or branched C.sub.1 -C.sub.4 alkyl radical, or a residue of formula --C.sub.m1 H.sub.2m1 -- or --C.sub.m1 H.sub.2m1 --O-- wherein m.sub.1 is a number ranging from 1 to 4; p.sub.1 is a number ranging from 0 to 5; and the R.sub.7, R.sub.8 and R.sub.9 radicals, which may be identical or different, are each a C.sub.1 -C.sub.18 alkyl radical, a C.sub.1 -C.sub.18 alkoxy radical, or a residue having the formula: ##STR8## wherein R.sub.10 is a C.sub.1 -C.sub.5 alkyl radical; and A.sub.1 is a residue having one of the following formulae: ##STR9## in which R.sub.3 is a hydrogen atom, a C.sub.1 -C.sub.10 alkyl radical, a radical of the formula --(CH.sub.2 CHR.sub.5 --O).sub.n1 R.sub.4 wherein n.sub.1 is a number ranging from 1 to 16 and R.sub.5 is a hydrogen atom or methyl radical, or a residue having the formula --CH.sub.2 --CH(OH)--CH.sub.2 OT.sub.1 wherein T.sub.1 is as defined above; R.sub.4 is a hydrogen atom, a metal cation M, a C.sub.1 -C.sub.5 alkyl radical, or a residue of formula --(CH.sub.2).sub.m2 --OT.sub.1, wherein m.sub.2 is a number ranging from 1 to 4 and T.sub.1 is as defined above; and Q.sub.1 is a C.sub.1 -C.sub.18 alkyl radical, formulated into a topically applicable, cosmetically acceptable vehicle, diluent or carrier thereof.