Use of hydro- and fluorocarbon compounds in cosmetic compositions; hydro- and fluorocarbon compounds; and cosmetic compositions containing these compounds

A cosmetic composition containing 0.1 to 25% by weight of at least one compound with formula (I):

• R.sub.F --(CH.sub.2 .sub.n --X--›C.sub.3 --H.sub.5 (OH)!--Y--(CH.sub.2).sub.m --R'.sub.F (I)
• where
• C.sub.2 H.sub.5 (OH) represents the structures:
• ##STR8## R.sub.F and R'.sub.F' which may be identical to or different from each other, represent a perfluorinated linear or branched C.sub.4 -C.sub.20 alkyl radical;
• m and n, which may be identical to or different from each other, are 0, 1, 2, 3 or 4;
• X and Y, which may be identical to or different from each other, represent O or S, and a cosmetically effective amount of at least one cosmetic additive selected from the group consisting of fatty substances, organic solvents, silicones, thickeners, softeners, UV-A and UV-B and broad spectrum solar filters, anti-foaming agents, moisturizing agents, humectants, fragrances, preservatives, surfactants, fillers, sequestrating agents, emulsifiers, anionic, cationic, non-ionic and amphoteric polymers and mixtures thereof, antiperspirants, alkalinizing agents, dyes, pigments, propellants, reducing agents, anti-oxidizing agents and free radical absorbers.

A compound with formula (I'):

• R.sub.F '--(CH.sub.2).sub.n --X--›C.sub.3 H.sub.5 (OH)!--Y--(CH.sub.2).sub.m --R'.sub.F (I')
• where
• C.sub.3 H.sub.5 (OH) represents the structures:
• ##STR9## R.sub.F and R.sub.F', which may be identical to or different from each other, represent a perfluorinated linear or branched C.sub.4 -C.sub.20 alkyl radical;
• m and n, which may be identical to or different from each other, are 0, 1, 2, 3 or 4, and X represents O and Y represents S or X represents S and Y represents O.