Aerosol composition comprising silicate particles and polymers
OwnerEmmanuelle Belli, Francoise Pataut +2inventors
InventorsEmmanuelle Belli, Francoise Pataut, Cecile Nocerino, Audrey Gilles
Life of this patent
Estimating the term…
Abstract
The invention concerns a cosmetic composition, in particular for the hair, packaged in an aerosol device containing a propellant and a liquid phase which comprises, in a cosmetically acceptable medium: (i) solid particles containing at least 10 wt. % of at least a silicate, and (ii) at least a polymer selected among fixing polymers, thickening polymers or a mixture thereof; said solid particles contain at least 1 wt. % of aluminium.
Claims19
A cosmetic composition, notably for the hair, packaged in an aerosol device containing a propellant and a liquid phase which comprises, in a cosmetically acceptable medium:
- (i) solid particles containing at least 10% by weight of at least one silicate, and
- (ii) at least one polymer selected from fixing polymers, thickening polymers or a mixture thereof;
- said solid particles containing less than 1% by weight of aluminum.
The composition as claimed in either one of the preceding claims, characterized in that the solid particles have a number-average primary size of between 2 nm and 1 μm.
The composition as claimed in any one of the preceding claims, characterized in that the particles containing at least 10% by weight of at least one silicate have a number-average primary size of between 5 and 500 nm, and more preferentially between 10 and 250 nm.
The composition as claimed in any one of the preceding claims, characterized in that the particles contain at least 50% by weight of silicate, preferably 70% by weight, and more preferentially still, more than 90% by weight of silicate.
The composition as claimed in any one of the preceding claims, characterized in that the particles containing silicate are present in a quantity of between 0.01% and 10% by weight, and preferably between 0.5% and 3% by weight in relation to the total weight of the composition.
The composition as claimed in any one of the preceding claims, characterized in that the fixing polymers are selected from anionic and nonionic polymers.
The composition as claimed in any one of the preceding claims, characterized in that the propellant is selected from dimethylether, C3 to C5 alkanes, such as n-butane, propane, isobutane, halogenated hydrocarbons, such as 1,1-difluoroethane, mixtures of dimethylether and C3-5 alkanes, mixtures of 1,1-difluoroethane and dimethylether and/or C3-5 alkanes.
The composition as claimed in the preceding claim, characterized in that the propellant is selected from dimethylether and C3 to C5 alkanes and their mixtures.
The composition as claimed in any one of the preceding claims, characterized in that the propellant is present in a quantity of between 2 and 90% by weight, preferably between 4 and 80%, better still between 5 and 65% by weight in relation to the total weight of the composition.
The composition as claimed in any one of the preceding claims, characterized in that it comprises usual cosmetic additives selected from adhesive agents, reducing agents such as thiols, fatty substances, softeners, defoamers, filters, antiperspirants, acidifying agents, alkalinizing agents, colorants, pigments, perfumes, preservatives, anionic, cationic, nonionic or amphoteric surfactants, non-fixing and non-thickening polymers, silicones volatile or not, modified or not, soluble or insoluble, vegetable, animal, mineral or synthetic oils, perfumes, proteins and vitamins, glycerol and their mixtures.
Dependencies are inferred from the claim text.