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Composition comprising microcapsules containing particles with a high wet point

A composition and granule technology, which is applied in the direction of medical preparations containing active ingredients, skin care preparations, cosmetics, etc., and can solve problems such as composition thickening

Inactive Publication Date: 2017-04-19
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In fact, they absorb a considerable portion of the composition into which they are introduced, and this absorption leads to a possibly undesirable thickening of the composition

Method used

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  • Composition comprising microcapsules containing particles with a high wet point
  • Composition comprising microcapsules containing particles with a high wet point
  • Composition comprising microcapsules containing particles with a high wet point

Examples

Experimental program
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Embodiment approach

[0071] According to another preferred embodiment, the microcapsules comprise:

[0072] - a core comprising at least one organic material,

[0073] - at least one layer of coating surrounding said core, said at least one layer of coating comprising a binder and at least one optionally porous particle with a high humidity point, said binder being selected from at least one polymer, at least one lipid-based material, and mixtures thereof, preferably mixtures thereof,

[0074] - an outer layer comprising a hydrophilic polymer.

[0075] Preferably, the core comprises as said organic material at least one monosaccharide or a derivative thereof, in particular a monosaccharide advantageously selected from the group consisting of mannitol, erythritol, xylitol, sorbitol and mixtures thereof - a polyol, preferably mannitol.

[0076] Preferably, said at least one layer of coating surrounding said core comprises at least one hydrophilic polymer selected from:

[0077] - homopolymers or...

Embodiment

[0951] I. Microcapsules

[0952] In the following, different examples of the preparation of microcapsules according to the invention are described in order to illustrate the invention.

[0953] The following particles according to the invention were used in the examples:

[0954] - OPTIMAT 2550OR dispatched by WORLD MINERALS (IMERYS), named "A" in the example below,

[0955] - Silica (amorphous silica microspheres (5 μm)), designated "B" in the examples below,

[0956] - SUNSPHERE H 51 dispatched by AGC SI-TECH, named "C" in the example below,

[0957] - PMMA (hollow spheres CREUSES (10 microns) of polymethylmethacrylate) dispatched by SENSIENT, named "D" in the example below,

[0958] - Cellulose (CELLULOBEADS USF dispatched by KOBO), named "E" in the example below,

[0959] - Airgel in water with 98% dry matter (DOW CORNING VM-2270AEROGEL FINE PARTICLES dispatched by DOW CORNING), named "F" in the example below.

example 1

[0961] Example 1a : STARPHERE-F Seed (seed) 4050 (core ball containing 20% ​​to 30% mannitol; 20% to 30% microcrystalline cellulose; and 40% to 50% cornstarch) was used as the core .

[0962] 50.0 g of HPMC (hydroxypropyl methylcellulose) was added to a mixed solution of 750 g of water and 3000.0 g of ethanol, and was completely dissolved at room temperature. With 150g of silylated silica airgel (Dow VM-2270AEROGEL FINE PARTICLES; Airgel with 98% dry matter present in water) and 350g of perlite-MSZ12 were added to the resulting mixture, fully dispersed using a homogenizer (3000rpm, 20min), to prepare the first Fill with coating solution.

[0963] 450.0 g of STP-F Seed 4050 was introduced into the fluidized bed coating system (Glatt GPCG 1, tangential spray) as the core seed and then subjected to the inner layer filling solution at a feed rate of 450ml / h to 500ml / h to obtain particles with a core of "STP-F Seed 4050" coated with a filler layer.

[0964] Coated particles ...

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Abstract

The instant invention relates to a composition for caring for and / or making up keratin materials comprising, in a physiologically acceptable medium, at least one microcapsule containing at least one encapsulated releasable material(s) said microcapsule comprising at least one core and at least one layered coating surrounding said core, and said encapsulated materials) being at least one particle having a high wet point and being optionally porous, and being only released from said microcapsule(s) when said composition is applied onto a keratin material, such as keratin fibers or skin. The invention further relates to a cosmetic process for caring for and / or making up keratinic materials, comprising application on said keratinic materials in particular on the skin of a composition as defined above.

Description

technical field [0001] The present invention relates to a composition for the care, hygiene and / or make-up of keratinous materials, said composition comprising microcapsules containing at least one particle with a high wet point, said high wet point The point is the wet point equal to or greater than 100ml / 100g for oil and / or for water, the particles are optionally porous. [0002] The composition according to the invention may be any type of cosmetic composition, such as foundations, face powders, eye shadows, concealer products, blushers, lipsticks, lip balms, lip glosses, lip liners, eyeliners, eyeliners, mascaras, Body cosmetics, skin coloring products, skin care products such as skin creams, "BB" products (concealer products capable of covering imperfections), tinted face creams or sun protection products, preferably foundation or "BB" products. Compositions according to the invention may be liquid, solid or powder. [0003] The compositions according to the invention a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/73A61K8/02A61K8/11A61K8/29A61K8/55A61Q1/02A61Q19/00
CPCA61K8/0279A61K8/0283A61K8/11A61K8/29A61K8/553A61K8/732A61K2800/56A61K2800/62A61K2800/624A61K2800/63A61K2800/651A61K2800/652A61Q1/02A61Q19/00A61K8/19A61K8/25A61K8/26A61K8/345A61K8/4986A61K8/585A61K8/602A61K8/731A61K8/8147A61K8/86A61K8/88A61K8/891A61K8/893A61K2800/412A61K2800/43A61K2800/654
Inventor 清水桃子克里斯多夫·杜穆索
Owner LOREAL SA