摘要:
Composition and process for dyeing keratinous fibers using sulphurous metaaminophenols of formula (I): ##STR1## in which Z is a C.sub.1 -C.sub.18 alkyl radical, an aryl radical, an aralkyl in which the alkyl radical has from 1 to 5 carbon atoms, a C.sub.2 -C.sub.6 monohydroxyalkyl radical, a C.sub.2 -C.sub.6 polyhydroxyalkyl radical, an aminoalkyl radical of formula (I') ##STR2## in which n is an integer of between 1 and 6 inclusive, R.sub.1 and R.sub.2, which may be the same or different, are a hydrogen atom or a C.sub.1 -C.sub.4 alkyl, a C.sub.1 -C.sub.4 hydroxyalkyl, a C.sub.2 -C.sub.6 acyl radical; R is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl radical, a C.sub.1 -C.sub.6 monohydroxyalkyl or a C.sub.2 -C.sub.6 polyhydroxyalkyl radical, a C.sub.1 -C.sub.6 monocarbamylalkyl, a C.sub.1 -C.sub.6 dicarbamylalkyl, a C.sub.1 -C.sub.4 aminoalkyl, a C.sub.1 -C.sub.6 acyl, a C.sub.2 -C.sub.6 carbalkoxy, a carbamyl or a carbamyl C.sub.1 -C.sub.6 monoalkyl, R' is a hydrogen atom, a C.sub.1 -C.sub.4 alkyl radical, a C.sub.1 -C.sub.4 thioalkyl or a C.sub.1 -C.sub.4 alkoxy, as well as the corresponding acid salts of said sulphurous metaaminophenols.
摘要:
A cosmetic or dermatological composition with a depigmenting action comprises derivatives of 2,5-dihydroxyphenylcarboxylic acids, their homologs, and their salts, with the derivatives having the following structural formula: ##STR1## wherein: R.sub.1 represents OR.sub.5, OH, or ##STR2## R.sub.5 is a linear or branched C.sub.1 -C.sub.20 alkyl radical, a linear or branched C.sub.2 -C.sub.20 alkenyl radical, or a C.sub.1 -C.sub.20 alkyl radical substituted by one or more hydroxy or alkoxy groups;r' and r", identical or different, represent a hydrogen atom, a C.sub.1 -C.sub.20 alkyl radical, a C.sub.2 -C.sub.6 hydroxyalkyl radical, or a C.sub.3 -C.sub.6 polyhydroxyalkyl, or r' and r" taken together, with the nitrogen atom, form a heterocycle;the number of carbon atoms in the --(CH.sub.2).sub.n --COR.sub.1 chain is less than or equal to 21;R.sub.2 and R.sub.3, identical or different, represent a hydrogen atom, a linear or branched C.sub.1 -C.sub.4 alkyl radical, or a C.sub.1 -C.sub.4 alkoxy; R.sub.4 represents a hydrogen atom or a linear or branched C.sub.1 -C.sub.4 alkyl radical; andn is an integer from 0 to 20, provided that, when R.sub.2 and R.sub.3 represent a hydrogen atom, n is greater than or equal to 2.
摘要:
The invention relates to novel monobenzene oxidation bases containing at least one cationic group Z bearing at least one quaternary ammonium unit which may or may not be cyclized, to their use for the oxidation dyeing of keratin fibers, to dye compositions containing then and to oxidation dyeing processes using them.
摘要:
The present invention relates to a composition for dyeing keratinous fibers, containing at least one azodiazine direct dye corresponding to the following formula (I): The present invention also relates to a method for dyeing keratinous fibers using these direct dyes.
摘要:
Photoprotective/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair, as well as of a wide variety of other photosensitive materials and substrates, e.g., inorganic or organic glasses, plastics or the like, against the deleterious effects of UV-A and UV-B irradiation, particularly solar radiation, comprise a photoprotecting effective amount of a novel insoluble benzalmalonate/phenylcyanoacrylate-substituted s-triazine compound having the structural formula (I): ##STR1## in which R.sub.1, R.sub.1 ' and R.sub.1 ", which may be identical or different, are each a monovalent radical having one of the formulae (A) or (B) below: ##STR2##
摘要:
The invention relates to novel compounds of the organosiloxane and organosilane type, bearing at least one function derived from salicylic acid. These novel products have, in particular, desquamating and/or anti-aging properties and may be used in topical application.
摘要:
Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise a photoprotecting effective amount of a novel benzotriazole-substituted polyorganosiloxane/polyorganosilane having one of the formulae (1) to (3): ##STR1## wherein A is a monovalent benzotriazole radical bonded directly to a silicon atom and having the formula (4): ##STR2##
摘要:
New tert-butyl derivatives of benzylidenecamphor, process for preparing them, their use as antioxidant agents and cosmetic and pharmaceutical compositions containing them.The invention relates to benzylidenecamphor derivatives of formula: ##STR1## where R is hydrogen or a tert-butyl residue, R.sub.1 is a C.sub.1 -C.sub.8 alkyl or alkoxy residue, and R.sub.2 and R.sub.3 denote hydrogen or hydroxyl, at least one of the two being hydroxyl, to a process for preparing them and to their uses as antioxidants, broad-band sunscreens and medicinal products for the preventive treatment of skin allergies and inflammations as well as for the prevention of certain cancers.
摘要:
A subject-matter of the present invention is the use, in the coloring of keratinous fibers, of a specific anionic hydrotropic agent of formula: in which X represents CH or N, n represents an integer ranging from 0 to 12, R1 represents COOM or SO3M, R2 represents a hydroxyl or a C1-C4 alkyl, R3 represents hydrogen or a C1-C4 alkyl, R2 and R3 can together form a ring and M represents hydrogen or one or more inorganic cations providing the electrical neutrality of the compound of formula (I). The invention likewise relates to a dyeing composition comprising at least one dye and such an anionic hydrotrope and to coloring processes employing this dyeing composition.
摘要:
Linear or cyclic diorganosiloxane compounds that include at least one nitroaniline function are disclosed. The compounds may be used as organic dyes in cosmetic compositions suitable for dyeing human keratin fibers, especially hair, or for make-up. The dyes may also be used in foods and pharmaceutical compositions and for dyeing natural and synthetic fibers and plastics or inorganic materials. Also disclosed are the use of the compounds in the above-mentioned fields, cosmetic compositions containing such compounds, and a method for directly dyeing keratin fibers.