摘要 |
A compound of the above formula wherein: R1 is C6-C30alkyl, C2-C30alkenyl, unsubstituted or C1-C5alkyl-mono- or polysubstituted C5-C12cycloalkyl, C1-C5alkoxy- C1-C12alkyl, amino- C1-C12alkyl, C1-C5monoalkylamino- C1-C12alkyl, C1-C12dialkylamino- C1-C12alkyl, or a radical as defined in the specification; R2, R3 and R4 independently of one another are hydrogen, hydroxyl, C1-C30alkyl, C1-C30alkenyl; R5 is hydrogen; m1 is 0 or 1; n1 is 1 to 5 Also disclosed are cosmetic preparations containing the above formula as a stabilizer in combination with other UV protective substances such as triazines, oxanilides, triazoles, amides containing vinyl groups or cinnamides and an organic material which is sensitive to damage by light, oxygen and/or heat. |