Patent ID: 6458342
Filing Date: 2002-10-01
Classification: A61K,A61Q

Abstract:
A method of protecting human hair or epidermis against harmful effects of UV radiation, which comprises treating the hair or the epidermis with an effective amount of a sunscreen combination comprisingA) a compound absorbing essentially in the UV-A region, and B) further compounds absorbing in the UV-A region, in the UV-B region and over both regions, wherein the constituent (A) consists of effective amounts of a compound of formula I and the constituent B) comprises effective amounts of one or more compounds selected from the group consisting of Ba) a compound of formula II Bb) a compound of formula III Bc) a compound of formula IV Bd) a compound of formula V Be) a compound of formula VI Bf) an organosiloxane benzalmalonate of formula VIIa in which V1â€² is a group V1 is a methyl group or V1â€², or â€ƒan organosiloxane benzalmalonate of formula VIIb in which V2â€² is a group V2 is a methyl group or V2â€², â€ƒor a mixture of the compounds of formulae VIIa and VIIb, where t is a value up to 100 and u is a value up to 20, with the proviso that u=0 if V1=V1â€² and/or V2=V2â€², and u is a value from 1 to 20 if V1=CH3 and/or V2=CH3, Bg) a compound of formula VIII Bh) a compound of formula IX Bi) a compound of formula X Bj) a compound of formula XI in which X is hydrogen, sodium, potassium, ammonium or triethanolammonium, Bk) a compound of formula XII Bl) a compound of formula XIII Bm) a compound of formula XIV Bn) a compound of formula XV Bo) a compound of formula XVI â€ƒand Bp) one or both of zinc oxide (XVII) and titanium dioxide (XVIII), optionally in combination with further compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.