COSMETIC COMPOSITION CONTAINING CHALCONE HYDROXYLATED DERIVATIVES AND USETHEREOF FOR THE PROTECTION OF SKIN AND HAIR AGAINST LIGHT IRRADIATION, NOVEL CHALCONES USED AND PREPARATION PROCESS THEREOF

摘要

abbreviated descriptionthe invention relates to a cosmetic compositionfor the protection of the skin and hair against theuv radiation comprising, in a medium cosmu00e9tiquementacceptable, at least one hydroxy chalcone derivative of 2formula:(i)wherein r1, r2, r3 and r4 are independentlyone of the other a hydrogen atom, an alkyl group, inc1 to c12 straight chain or branched alkoxy group as ac1 to c12 straight and branched chain or an acyloxy groupin c2 to c20 is straight and branched chain. the invention is designedas some of the derivatives of novel compoundshydroxy 2 chalcone of formula (i), as well as processpreparation. the compounds of formula (i) aregood filtering properties against ultravioletviolet, a character and a good fat soluble.very good thermal and photochemical stability.