Abstract:
An emulsion comprising a continuous aqueous phase and a dispersed fatty phase in the form of drops, or conversely, wherein the drops comprise a shell formed of at least one anionic polymer comprising at least one carboxylic acid function and at least one cationic polymer comprising at least two amine functional groups, wherein the quantity of amine functional groups provided by the cationic polymer in the fatty phase is between 0.2 μmol and 10.5 μmol per gram of fatty phase.
Abstract:
Each capsule comprises a liquid core (14) and a gelled shell (16) comprising a gelled polyelectrolyte completely encapsulating the liquid core (14) at the periphery thereof. The gelled shell (16) is suitable for retaining the liquid core (14) when the capsule (12) is immersed in a gas.The liquid core (14) comprises an intermediate drop (18) of an intermediate phase, the intermediate phase being placed in contact with the gelled shell (16), and at least one internal drop (20) of an internal phase placed in the intermediate drop (18). The ratio of the volume of the core (14) to the volume of the gelled shell (16) is greater than 2, advantageously is greater than 50.
Abstract:
Each capsule comprises a liquid core (14) and a gelled shell (16) comprising a gelled polyelectrolyte completely encapsulating the liquid core (14) at the periphery thereof. The gelled shell (16) is suitable for retaining the liquid core (14) when the capsule (12) is immersed in a gas.The liquid core (14) comprises an intermediate drop (18) of an intermediate phase, the intermediate phase being placed in contact with the gelled shell (16), and at least one internal drop (20) of an internal phase placed in the intermediate drop (18). The ratio of the volume of the core (14) to the volume of the gelled shell (16) is greater than 2, advantageously is greater than 50.
Abstract:
A device for producing a dispersion including elements including a first phase, which are dispersed in a continuous phase immiscible with the first phase is described herein. The device including at least one production nozzle including a first duct intended to convey a first fluid that forms the first phase, a second duct, coaxially surrounding part of the first duct, able to convey a second fluid that forms the continuous phase, and an outlet. The nozzle is able to form, at the outlet, a fluid jet including the first fluid and the second fluid surrounding the first fluid. The production device additionally includes a fragmentation device for mechanically breaking up the fluid jet, positioned in the vicinity of the outlet of the nozzle, the fragmentation device including a mobile part intended to break up the fluid jet mechanically into a plurality of elements.
Abstract:
The invention relates in general to dispersions with a high pigment content, as well as to the uses thereof in the cosmetic industry, and in particular to uses thereof as a makeup composition and particularly as foundation.
Abstract:
Disclosed is a stable composition, particularly a cosmetic composition, in the form of an emulsion comprising at least one fatty phase and at least one non-miscible aqueous phase at room temperature and atmospheric pressure and in which the dispersed phase is in the form of drops. The drops of dispersed phase that have a diameter greater than or equal to 250 μm represent a volume greater than or equal to 60% of the total volume of the dispersed phase and/or at least 60% of the drops have an average diameter greater than or equal to 250 μm, the composition comprises from 1% to 60% by weight of dispersed phase relative to the total weight of the composition, the composition comprises a percentage of ingredients of natural origin that is greater than or equal to 95% according to ISO standard 16128, and the composition is devoid of amodimethicone.
Abstract:
A series of particles, in which each particle contains at least 3 wt. % of pigment(s) in relation to the weight of the particle, a method for producing the series of particles, and uses thereof in cosmetic compositions, particularly in make-up for keratinous materials.
Abstract:
The present invention relates to a process for preparing solid microcapsules comprising the following steps: a) preparation of a composition C1, which is either a composition C1a, comprising a single hydrophobic solid particle, or a composition C1b comprising a plurality of hydrophobic solid particles dispersed in a hydrophilic phase, b) addition with stirring of the composition C1 in a polymeric composition C2 at a temperature Tb, whereby an emulsion (E1) is obtained; c) addition, with stirring, of the emulsion (E1) in a composition C3 at a temperature Tc, whereby a double emulsion (E2) is obtained; d) applying a shear to the emulsion (E2), whereby a double emulsion (E3) is obtained; and e) polymerization of the composition C2, whereby solid microcapsules dispersed in the composition C3 are obtained.
Abstract:
A dispersion containing a dispersed phase comprising drops and a continuous aqueous phase, preferably in the form of a gel, in which the drops comprise a fatty phase containing at least one gelling agent and a shell, wherein the shell comprises at least one anionic polymer and at least one cationic polymer.
Abstract:
The present invention relates to a method for preparing capsules comprising a liquid core, a stiffened intermediate envelope and a gelled external envelope, comprising a step of forming a multi-component liquid drop, a gelification step and a stiffening step.The present invention also relates to a method for preparing capsules comprising a liquid core and a stiffened envelope, comprising a step of forming a multi-component liquid drop, a gelification step, a stiffening step and a depolymerizing step.