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US 7,351,405 B2Granted
Long-lasting cosmetic composition for application to human hair, such as eyelashes and eyebrows
AssigneeL'oreal
InventorValerie De La Poterie
Life of this patent
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AssigneeL'oreal
InventorValerie De La Poterie
Estimating the term…
The invention relates to mascara compositions. In one embodiment, it relates to a dye-free and wax-free mascara composition that lasts more than one day when applied to eyelashes, is resistant to water, and does not noticeably thicken eyelashes on application. In another embodiment, it relates to a wax-free mascara composition comprising solid particles of a film-forming acrylic polymer dispersed in a cosmetically acceptable aqueous medium, in which the film-forming acrylic polymer are capable of forming a film having a water-uptake, after immersion for 10 minutes in water at 25° C., of less than 25 wt. %, and wherein the composition has a viscosity, measured at 25° C., at a shear rate of 200 s−1, of from 4 Pa·s to 18 Pa·s. In other embodiments, the invention relates to make-up kits, articles, and methods for making-up and/or coloring human hair, such as eyelashes and/or eyebrows, using these compositions.
A wax-free mascara composition comprising solid particles of a film-forming acrylic polymer dispersed in a cosmetically acceptable aqueous medium, said film-forming acrylic polymer being capable of forming a film having a water-uptake, after immersion for 10 minutes in water at 25° C., of less than 25 wt. %, and said composition having a viscosity, measured at 25° C., at a shear rate of 200 s−1, ranging from 4 Pa.s to 18 Pa.s, wherein said acrylic polymer is obtained by the polymerization of at least one monomer containing ethylenic unsaturation selected from the group consisting of α,β-ethylenic carboxylic acids, α,β-ethylenic carboxylic acid esters, α,β-ethylenic carboxylic acid amides, and mixtures thereof;
A mascara product comprising a reservoir containing a mascara composition a removable closure means for closing said reservoir and a member for cosmetically applying said composition, wherein said mascara composition is a dye-free and wax-free mascara composition that lasts more than one day when applied to eyelashes, is resistant to water and wherein said mascara composition is a wax-free mascara composition comprising solid particles of a film-forming acrylic polymer dispersed in a cosmetically acceptable aqueous medium, said film-forming acrylic polymer being capable of forming a film having a water-uptake, after immersion for 10 minutes in water at 25° C., of less than 25 wt. %, and said mascara composition having a viscosity, measured at 25° C., at a shear rate of 200 s−1, ranging from 4 Pa·s to 18 Pa·s.
A make-up product for use on human eyelashes or eyebrows, comprising a dye-free and wax-free mascara composition that lasts more than one day when applied to eyelashes, is resistant to water and wherein said mascara composition is a wax-free mascara composition comprising solid particles of a film-forming acrylic polymer dispersed in a cosmetically acceptable aqueous medium, said film-forming acrylic polymer being capable of forming a film having a water-uptake, after immersion for 10 minutes in water at 25° C., of less than 25 wt. %, and said mascara composition having a viscosity, measured at 25° C., at a shear rate of 200 s−1, ranging from 4 Pa·s to 18 Pa·s.
A method for making-up human hair, comprising applying to said hair a dye-free and wax-free mascara composition that lasts more than one day when applied to eyelashes, is resistant to water, and wherein said mascara composition is a wax-free mascara composition comprising solid particles of a film-forming acrylic polymer dispersed in a cosmetically acceptable aqueous medium, said film-forming acrylic polymer being capable of forming a film having a water-uptake, after immersion for 10 minutes in water at 25° C., of less than 25 wt. %. and said mascara composition having a viscosity, measured at 25° C., at a shear rate of 200 s−1, ranging from 4 Pa·s to 18 Pa·s.
Dependencies are inferred from the claim text.