Patent ID: 7988953

Claim:
A cosmetic composition comprising a conjugate comprising a hyperbranched polymer covalently bonded to at least three UV absorbing chromophores having an UV absorption maximum λ max ≧270 nm selected from the group consisting of the moieties represented by general formulae: wherein Y is O or NR 3 wherein R 3 is H, C 1 -C 6 -alkyl or C 2 -C 6 -alkenyl; R 4 and R 5 are independently H, C 1 -C 6 -alkyl, C 2 -C 6 -alkenyl, CO 2 H, CO 2 —C 1 -C 6 -alkyl, or R 4 and R 5 together with the carbon atom to which they are attached form a 6-camphenyl ring; R 9 and R 10 are independently H or C 1 -C 6 -alkyl; R 11 and R 12 are independently H, C 1 -C 6 -alkyl, NO 2 , CO 2 —C 1 -C 6 -alkyl or CN; Z is C 1 -C 6 -alkylene, optionally interrupted by 1 to 3 oxygen atoms; R 13 and R 14 are independently H, OR 15 , NR 16 R 17 or C 1 -C 6 -alkyl; and R 15 , R 16 and R 17 are independently selected from H and C 1 -C 6 -alkyl; and wherein R′ is H, OH, straight or branched chain C 1 -C 20 -alkyl, C 1 -C 20 -alkoxy or C 2 -C 20 -alkenyl; and wherein in the above definition the symbol “┤” denotes the linkage to the hyperbranched polymer; or a moiety of benzophenone-3, benzophenone-4, 2,2′,4,4′-tetrahydroxy-benzophenone and 2,2′-dihydroxy-4,4′ dimethoxybenzophenone; and a cosmetically acceptable carrier, and wherein the hyperbranched polymer is the polycondensation or polyaddition reaction product of building blocks AB 2 , which building block AB 2 is glycidol.