XANTHONE DERIVATIVES, UV PROTECTIVE COMPOSITION CONCENTRATE, METHOD OF PREPARATION OF UV PROTECTIVE COMPOSITION CONCENTRATE, USE OF UV PROTECTIVE COMPOSITION CONCENTRATE AND COSMETIC UV PROTECTIVE PRODUCT

摘要

The first object of the invention is a xanthone derivative described by formula (I) where R1 is a substituent selected from the group comprising: hydrogen or alkoxy group; R2 is a substituent selected from the group comprising methylcinnamoyl, phenylpenta-2,4- dienenitrile, cyanoethenylphenyl or cyanoethenylalkyl substituent, wherein the phenyl ring is substituted with R3 selected from the group consisting of: hydrogen, alkoxy substituent or halide atom. The second objection of the invention is a UV protective composition concentrate containing the xanthone derivative described by the formula (I). The third object of the invention is a method for the preparation of a UV protective composition concentrate. The next object of the invention is the use of a UV protective composition concentrate for the production of UV protective cosmetic products. Yet another object of the invention is a cosmetic UV protective product.