Abstract:
Cosmetic composition containing, by way of a compound screening cut UV of wavelengths 280-380 nm, a 5-benzylidene-3-oxacyclopentanone of formula (I): ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 denote C.sub.1 -C.sub.8 alkyl, aralkyl or aryl, or alternatively R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 form, with the carbon to which they are attached, a saturated 5- or 6-membered ring, andR.sub.5, R.sub.6 and R.sub.7 denote H, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.1 -C.sub.12 alkoxy, C.sub.2 -C.sub.8 alkenyloxy, C.sub.2 -C.sub.12 acyloxy, benzyloxy or --COOR.sub.10 where R.sub.10 is a C.sub.1 --C.sub.8 alkyl, hydrogen, an alkali metal or alkaline earth metal or a radical derived from an amine, it also being possible for one of the substituents R.sub.5, R.sub.6 and R.sub.7 to denote a radical ##STR2## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the above meanings. This composition can be a protective composition for the human epidermis or the hair or an antisun composition.New compounds of formula (I) in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7, have the same meanings, R.sub.6 being other than hydrogen, methyl and methoxy.
Abstract:
The invention relates to an unsaturated benzalmalonate derivative of formula: ##STR1## in which: R.sub.1 and R.sub.2 denote a hydrogen atom, a hydroxyl, a trimethylsiloxy, a C.sub.1 -C.sub.6 straight or branched chain alkyl, C.sub.1 -C.sub.6 straight or branched chain alkoxy or a --(CH.sub.2).sub.p --C(R.sub.4).dbd.CH.sub.2 radical, where p is an integer between 1 and 10 and preferably between 1 and 4 and R.sub.4 denotes a hydrogen atom or a C.sub.1 -C.sub.4 straight or branched chain alkyl radical, one of the two radicals R.sub.1 or R.sub.2 denoting a residue --(CH.sub.2).sub.p --C(R.sub.4).dbd.CH.sub.2,R.sub.3 denotes a hydrogen atom, a C.sub.1 -C.sub.6 straight or branched chain alkyl radical or a C.sub.1 -C.sub.6 straight or branched chain alkoxy radical,R.sub.5 and R.sub.6, which are identical or different, denote a C.sub.1 -C.sub.8 straight or branched chain alkyl radical.Use as a sunscreen in cosmetic compositions.
Abstract:
A benzofuran compound of the formula ##STR1## wherein A represents ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, B and D have various meanings. The benzofuran compound is usefully employed in pharmaceutical and cosmetic compositions.
Abstract:
A benzofuran compound of the formula ##STR1## wherein A represents ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, B and D have various meanings. The benzofuran compound is usefully employed in pharmaceutical and cosmetic compositions.
Abstract:
Polyvalent metal salt of a sulphonated derivative of benzylidenecamphor having the general formula: ##STR1## in which M.sup.n+ denotes a polyvalent metal cation in which n is equal to 2, 3 or 4; andOne of the symbols X.sub.1 or X.sub.2 denotes a hydrogen atom, the other denoting one of the following radicals Y.sub.1 Y.sub.2 : ##STR2## where M.sup.n+ has the same meaning as above. Cosmetic composition screening out UV rays of wavelengths 280-380 nm, containing the compound of formula (I) as well as, optionally, other sunscreens.
Abstract:
Novel diorganopolysiloxanes containing benzalmalonate functional groups, well adapted as coatings for optical fibers, as well as lubricants for plastic substrates, e.g., PVC substrates, have one of the following formulae: ##STR1## in which A and/or B is a benzalmalonate radical.
Abstract:
Cosmetic screening composition containing a benzylidene camphor sulphonamide and its use for the protection of human skin against ultraviolet radiation.
Abstract:
The use in dyeing human keratin fibres, especially human hair, of 2-hydroxy-1,4-naphthoquinones of the formula: ##STR1## in which R.sub.1 denotes a hydrogen or halogen atom, or a hydroxy, alkoxy, nitro, alkyl or acyl group, and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently of one another denote hydrogen or a hydroxyl, alkoxy, alkyl or acyl group, such that at least one of the substituents R.sub.1 to R.sub.5 is other than hydrogen, and if R.sub.1, R.sub.3 and R.sub.4 denote hydrogen, R.sub.2 and R.sub.5 cannot simultaneously denote hydroxyl is described.
Abstract:
Polyaminoamides of formula: ##STR1## in which A.sub.1 represents a divalent radical of structure: ##STR2## in which a and b=0 or 1 ##STR3## in which c and d=0 or 1 or ##STR4## B.sub.1 represents: (1) in the proportions of 60 to 100% (in moles), the radical ##STR5## in which x.sub.1 =2 and n.sub.1 =1 or 2, or alternatively, x.sub.1 =3 and n.sub.1 =1 and e=0 or 1(2) in the proportions of 0 to 40% (in moles), the radical (II) above in which x.sub.1 =2 and n.sub.1 =0 or the radical ##STR6## (3) in the proportions of 0 to 20% (in moles), the radical--NH--(CH.sub.2).sub.6 --NH--;in radicals A.sub.1 and B.sub.1, Y represents a residue of an ultraviolet radiation-absorbing molecule, anda+b+c+d+e.gtoreq.1,it being understood that when a, b, c, d or e are zero, the nitrogen atom is then bound to a hydrogen atom;the ratio m/p is between 0.05 and 0.5;A.sub.2 represents a bivalent radical which has one of the following structures: ##STR7## B.sub.2 represents: (1) in the proportions of 60 to 100% (in moles), the radical ##STR8## in which x.sub.2 =2 and n.sub.2 =2 or 3, or alternatively, x.sub.2 =3 and n.sub.2 =2(2) in the proportions of 0 to 40% (in moles), the radical (III) above in which x.sub.2 =2 and n.sub.2 =1 or the radical ##STR9## (3) in the proportions of 0 to 20% (in moles), the radical--NH--(CH.sub.2).sub.6 --NH--process for their preparation and their use as sunlight filters for hair and skin.