Patent ID: 7326407

Claim:
A topically applicable cosmetic/dermatological composition suited for the UV-photoprotection of human skin/keratinous materials, comprising: (a) an effective UV-photoprotecting amount of at least one amine, amide, sulphonamide or carbamate substituted benzalmalonic salt compound having the following general formula (1) or (2): in which X 1 is hydrogen or a radical R 3 —(C═O)—, R 3 —SO 2 — or R 3 —O—(C═O)—; X 2 is a divalent radical of formula —(C═O)—R′ 3 —(C═O)—, —SO 2 —R′ 3 —SO 2 — or —(C═O)—O—R′ 3 —O—(C═O)—; R 2 is a linear or branched C 1-8 alkyl radical; n is 0, 1 or 2; R 3 is a linear or branched C 1 -C 30 alkyl radical or C 3 -C 30 alkenyl radical, optionally bearing one or more hydroxyl substituents and optionally containing in the hydrocarbon chain one or more heteroatoms selected from among oxygen, nitrogen and silicon atoms, or an optionally substituted C 6 -C 20 aryl radical; R′ 3 is a single valence bond or a linear or branched divalent C 1 -C 30 alkylene or C 3 -C 30 alkenylene radical, optionally bearing one or more hydroxyl substituents and optionally containing in the hydrocarbon chain one or more heteroatoms selected from among oxygen, nitrogen and silicon atoms; and the radicals A, which may be identical or different, are each an alkali metal cation, an ammonium group, a C 1 -C 20 mono-, di- or trialkylammonium radical, a C 2 -C 20 mono-, di- or trialkanolammonium radical, or a C 5 -C 8 quaternary nitrogen-containing heterocyclic ring member; and (b) one or more complementary organic or inorganic screens which are active in the UV-A and/or UV-B region; formulated into a topically applicable, cosmetically/dermatologically acceptable medium therefor.