The present invention relates to a photocrosslinkable cosmetic composition, comprising in a physiologically acceptable medium: at least one photocrosslinkable urethane (meth)acrylate compound P1 comprising at least one structural unit: (I) at least one photocrosslinkable urethane (meth)acrylate compound P2, comprising at least one polyethylene glycol chain, preferably at least one film-forming polymer P3, and at least one photoinitiator. ##STR00001##

The invention relates to a solid composition comprising (i) one or more powders, and (ii) one or more poly(alkylene oxides), and to the use thereof for styling the hair.

This invention relates to etheramines based on dialcohols, wherein the etheramines comprise at least three linear or branched C.sub.4-alkylene groups and a process for the manufacture of these etheramines.

This invention relates to etheramines based on dialcohols, wherein the etheramines comprise at least three linear or branched C.sub.4-alkylene groups and a process for the manufacture of these etheramines.

A composition for coloring and shampooing hair substantially free, preferably totally and completely free, of anionic surfactants, comprising at least one cationic dye, n-methyl acyl glucamide with a carbon chain length from 8 and 20, inclusive, preferably 8 and 10, an aqueous carrier, and at least one stabilizer of anti-oxidant and free radical scavanger. By weight, (based on the total weight of the composition), the composition comprises 0.0005% to 3.0% cationic dye, 2.5 to 30% n-methyl acyl glucamide, 30 to 70% water, and 0.01 to 0.5% stabilizers of anti-oxidant and free radical scavenger. The present invention relates to hair cleaning compositions containing at least one cationic dye, a nonionic or amphoteric surfactant, a fragrance, and a stabilizer (antioxidant).

A composition for coloring and shampooing hair substantially free, preferably totally and completely free, of anionic surfactants, comprising at least one cationic dye, n-methyl acyl glucamide with a carbon chain length from 8 and 20, inclusive, preferably 8 and 10, an aqueous carrier, and at least one stabilizer of anti-oxidant and free radical scavanger. By weight, (based on the total weight of the composition), the composition comprises 0.0005% to 3.0% cationic dye, 2.5 to 30% n-methyl acyl glucamide, 30 to 70% water, and 0.01 to 0.5% stabilizers of anti-oxidant and free radical scavenger. The present invention relates to hair cleaning compositions containing at least one cationic dye, a nonionic or amphoteric surfactant, a fragrance, and a stabilizer (antioxidant).

A method for coloring hair, and a kit for coloring hair are provided. The method for coloring hair comprises applying to the hair a first composition comprising in a cosmetically acceptable carrier, one or more ionizable linkers of Formula I, or cosmetically acceptable salts thereof or mixtures thereof and applying to the hair a second composition comprising in a cosmetically acceptable carrier, one or more ingredients of Formula II and/or Formula III, or cosmetically acceptable salts thereof, or mixtures thereof and wherein the first composition does not comprise any ingredients of Formula II and/or Formula III of the second composition and any oxidative dye precursors; wherein the second composition does not comprise any ionizable linkers of Formula I of the first composition; and wherein the second composition further comprises a dye composition and optionally a developer composition wherein the developer composition comprises one or more oxidizing agents; and wherein the dye composition comprises one or more oxidative dye precursors comprising one or more couplers and one or more primary intermediates.

A method for coloring hair, and a kit for coloring hair are provided. The method for coloring hair comprises applying to the hair a first composition comprising in a cosmetically acceptable carrier, one or more ionizable linkers of Formula I, or cosmetically acceptable salts thereof or mixtures thereof and applying to the hair a second composition comprising in a cosmetically acceptable carrier, one or more ingredients of Formula II and/or Formula III, or cosmetically acceptable salts thereof, or mixtures thereof and wherein the first composition does not comprise any ingredients of Formula II and/or Formula III of the second composition and any oxidative dye precursors; wherein the second composition does not comprise any ionizable linkers of Formula I of the first composition; and wherein the second composition further comprises a dye composition and optionally a developer composition wherein the developer composition comprises one or more oxidizing agents; and wherein the dye composition comprises one or more oxidative dye precursors comprising one or more couplers and one or more primary intermediates.

A method for preparing non-free radical photo-crosslinked hydrogels includes: dissolving component A that is a polymer derivative modified with o-nitrobenzyl phototrigger in a biocompatible medium to obtain solution A; dissolving component B that is a polymer derivative containing hydrazide, hydroxylamine or primary amine in a biocompatible medium to obtain solution B; mixing solution A and solution B to obtain a precursor solution of hydrogel; under light irradiation, crosslinking aldehyde generated from the o-nitrobenzyl with the hydrazine, hydroxylamine or primary amine to obtain a hydrogel by forming hydrazone, oxime or schiff base, respectively. A kit for preparation and application of the hydrogel in tissue repair, beauty therapy, and cells, proteins or drugs carriers is also described. The method or kit can achieve in situ photo-gelling on tissue surface or in situ forming thin gel on wounds in clinical treatment of wounds.

A method for preparing non-free radical photo-crosslinked hydrogels includes: dissolving component A that is a polymer derivative modified with o-nitrobenzyl phototrigger in a biocompatible medium to obtain solution A; dissolving component B that is a polymer derivative containing hydrazide, hydroxylamine or primary amine in a biocompatible medium to obtain solution B; mixing solution A and solution B to obtain a precursor solution of hydrogel; under light irradiation, crosslinking aldehyde generated from the o-nitrobenzyl with the hydrazine, hydroxylamine or primary amine to obtain a hydrogel by forming hydrazone, oxime or schiff base, respectively. A kit for preparation and application of the hydrogel in tissue repair, beauty therapy, and cells, proteins or drugs carriers is also described. The method or kit can achieve in situ photo-gelling on tissue surface or in situ forming thin gel on wounds in clinical treatment of wounds.