Capsum

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Other

Centre National De La Recherche Scientifique

Sorbonne Université

Mathieu Goutayer

Yan Eric Pafumi

Jerome Bibette

Isabelle Texier-Nogues

Amélie Pujol

Fabrice Navarro Y Garcia

Thomas Delmas

Hélène Balbusquier

Jérôme Bibette

Anabela Da Silva

Sebastien Remi Bardon

Ahmed Marouf

Sébastien Bardon

Javier Angel Tesan

Angelique Mazur

Claire Prudhon

Michel Bassens

Sebastein Bardon

Toufic Daou

Jacques Fattaccioli

Veronique Mourier-Robert

Lucie Chatry

Véronique Mourier-Robert

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.

Devices and methods for dispersing a first phase in a substantially immiscible continuous phase

The present invention relates to a composition, in particular cosmetic, in the form of an oil-in-water emulsion, comprising a continuous aqueous phase and a dispersed oil phase in the form of drops (G1) and drops (G2), wherein the size of the drops (G1) is less than 500 μm and the size of the drops (G2) is greater than 500 μm.

Oil-in-water emulsions of which the oil phase is in the form of a mixture of drops of different sizes

A dispersion containing a dispersed phase comprising drops and a continuous aqueous phase, preferably in the form of gel, in which the drops comprise a fatty phase containing at least one gelling agent, and in which the fatty phase comprises at least one non-volatile hydrocarbon oil H1 containing more than 90%, and preferably more than 95%, fatty acids having at least 18 carbon atoms and preferably at least 20 carbon atoms.

Dispersions comprising at least one non-volatile hydrocarbon oil

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 &#x3bc;mol and 10.5 &#x3bc;mol per gram of fatty phase.

Stable emulsions of polymer-shell drops

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.

Stable dispersions containing drops comprising a gelling agent

The invention deals with a dispersion of drops of a first phase in a second phase substantially immiscible with the first phase, the solubility of the first phase in the second phase being less than 5% by mass. Each drop includes a core formed with a first phase and a shell formed with a coacervate layer interposed between the first phase and the second phase. The coacervate layer comprises a first precursor polymer of the coacervate and a second precursor polymer of the coacervate, one of the first phase and of the second phase is aqueous, and the other of the first phase and of the second phase is oily.

Dispersion of drops of a first phase, dispersed in a second phase substantially immiscible with the first phase

The present invention relates to a plant () for producing a composition (), in particular a cosmetic composition, comprising drops () of at least one first fluid dispersed in a second fluid substantially immiscible with the first fluid, each drop () comprising a core formed of the first fluid, and optionally a shell suitable for retaining the core, the plant () comprising:

Plant for producing a composition comprising drops and associated production process

This device comprises: a container defining an inner volume intended to contain the product closed off by a movable bottom and opening out through a dispensing neck; a dispensing member; a purge ring comprising a base that delimits a central orifice defining a central axis of the ring, the base having an outer contour and a side surface converging from the outer contour toward a second end of the central orifice. The device is characterized in that the purge ring comprises at least one radial opening arranged radially relative to the central axis and allowing the passage of the product from the container toward the central orifice.

Device for packaging and dispensing a product in an airless manner, notably in several phases, associated purge ring and method

Composition comprising gelled capsules stabilized by a buffer

This method includes the provision of a first fluid () including the first phase and a first precursor polymer of the coacervate contained in the first phase, and the formation of drops of the first fluid () in a second fluid () intended to form the second phase (). It includes the steps of introducing a second precursor polymer of the coacervate into the second fluid () and, during the formation of each drop (), or once each drop () has been formed, for generating the coacervate layer by interaction between the first precursor polymer and the second precursor polymer at the interface between the first phase () and the second phase ().

Method for forming drops of a first phase, dispersed in a second phase substantially immiscible with the first phase

The present invention relates to a therapeutic agent formulation in the form of a nano-emulsion, comprising a continuous aqueous phase and at least one dispersed oily phase, in which the oily phase comprises further to the therapeutic agent, at least one amphiphilic lipid and at least one solubilizing lipid, and in which the aqueous phase comprises at least one polyalkoxylated cosurfactant. The invention also relates to a preparation method and use of this formulation.

Encapsulation of lipophilic or amphiphilic therapeutic agents in nano-emulsion

This device comprises a hollow body, the hollow body defining: an internal conduit for distributing the first fluid, the internal conduit defining an inner volume; an external conduit or distributing the second fluid, the internal conduit and the external conduit extending coaxially along a longitudinal axis (AA'). It at least comprises one metal tube extending along the longitudinal axis (AA&#x2032;) and being positioned in the inner volume of the internal conduit and/or in the downstream extension of the internal conduit and/or of the external conduit.

Device for producing dispersed elements, associated assembly and production method

This method comprises the following steps: flowing drops of a first phase, through a circulation duct, into a second phase that is substantially immiscible with the first phase, each drop comprising a core formed from the first phase and a shell formed from a layer of coacervate inserted between the first phase and the second phase; recovering a dispersion containing drops and the second phase in a container; injecting a solution for increasing the viscosity of the second phase in the circulation duct or at the outlet of the circulation duct, upstream from the container.

Method for forming a dispersion comprising drops, and associated apparatus

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.

Method for preparing stiffened capsules

The device () for dispensing a fluid composition includes: a container () containing a heterogeneous mixture ();

Growing community of inventors

Saint-Malo, France

Mathieu Goutayer