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Oil/oil emulsions containing particles with a breakage of curvature, compositions comprising them and use of the particles for stabilizing o/o emulsions

A curvature fracture, oil emulsion technology, applied in the directions of medical preparations containing active ingredients, cosmetic preparations, preparations for skin care, etc., can solve the problem of no description of O/O emulsion, etc., and achieve the effect of pleasant appearance

Inactive Publication Date: 2016-03-09
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, patent application WO2009 / 150852 relates to oil-in-oil cosmetic compositions comprising non-volatile hydrocarbon-based oils, non-volatile silicone oils and fatty acid esters of dextrins, but said application does not describe Pickering-type O / O lotion

Method used

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  • Oil/oil emulsions containing particles with a breakage of curvature, compositions comprising them and use of the particles for stabilizing o/o emulsions
  • Oil/oil emulsions containing particles with a breakage of curvature, compositions comprising them and use of the particles for stabilizing o/o emulsions
  • Oil/oil emulsions containing particles with a breakage of curvature, compositions comprising them and use of the particles for stabilizing o/o emulsions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0497] Example of Ultrasonic Treatment

[0498] Series 1: Silicone resin bowl-shaped particles ( diameter : 2.3μm±0.9 ) prepared emulsion

[0499] Sonicator XL instrument from Misonix Incorporated at 110W to 165W power for 1 minute to 1 minute 5 seconds; 25°C.

[0500]

[0501]

[0502]

[0503] Preparation scheme:

[0504] The emulsion was prepared by sonication in two steps:

[0505] - for 35s to form the "start" phase of the interface,

[0506] -Then add particles for a 30 s "end of step" phase.

[0507] The power applied is specific to each emulsion in the table above.

[0508] Series 2: Use PMMA bowl-shaped particles ( diameter : 11.8μm±1.5 ) prepared emulsion

[0509]

[0510]

[0511] Preparation scheme:

[0512] The emulsion was prepared in two steps by sonication at 25 °C:

[0513] - for 35s to form the "start" phase of the interface,

[0514] -Then add particles for a 30s "step termination" phase.

[0515] The power applied is specif...

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Abstract

The present invention relates to an oil / oil emulsion comprising at least: -a first oily phase comprising at least a first non-volatile oil chosen from silicone oils, hydrocarbon-based oils and fluoro oils, -a second oily phase comprising at least a second volatile or non-volatile oil, which is immiscible with the first oil(s) at room temperature, -solid microparticles having at least one curved part and at least one breakage of curvature of the said curved part. The invention also relates to a cosmetic composition comprising, in a physiologically acceptable medium, at least one such oil / oil emulsion. Finally, the invention relates to the use of solid microparticles having at least one curved part and at least one breakage of curvature of the said curved part, for stabilizing an oil / oil emulsion as has just been described.

Description

technical field [0001] The present invention relates to the field of cosmetic compositions based on oil / oil (O / O) emulsions. Background technique [0002] There is still a need for novel architectures that can result in stable cosmetic compositions with the comfort properties desired by the user. [0003] The authors of the present invention conducted directed research on O / O emulsions. These emulsions are relatively rare, but have the advantage of novel properties. [0004] The main problem that arises with this type of emulsion is related to its stability: O / O emulsions are usually stabilized with gelling agents or even emulsifying surfactants and / or (co)polymers. [0005] Emulsions of this type are used especially in lip balms and / or lip makeup products. For example, patent application WO2009 / 150852 relates to oil-in-oil cosmetic compositions comprising non-volatile hydrocarbon-based oils, non-volatile silicone oils and fatty acid esters of dextrins, but said applicati...

Claims

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Application Information

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IPC IPC(8): A61Q1/00A61Q1/06A61Q5/00A61Q15/00A61Q19/00A61K8/02A61K8/06A61K8/89A61K8/92
CPCA61K8/0245A61K8/06A61K8/8111A61K8/8152A61K8/89A61K8/922A61K2800/10A61K2800/412A61K2800/52A61K2800/82A61Q19/00A61K8/891
Inventor F·莱维L·埃诺特-梅泽兹V·佩雷兹诺瓦克
Owner LOREAL SA