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Emulsifying combination for obtaining low viscosity water-in-oil emulsions

A technology of composition and use, applied in application, cosmetics, preparations for toiletry, etc., can solve problems such as negative environmental impact, human health risks, silicone-based substances and PEG disputes

Pending Publication Date: 2020-05-01
欧荔安股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, silicone-based substances and PEG are controversial
Silicone-based substances are not biodegradable in addition to their very strong residual properties and therefore have a negative impact on the environment
PGE is suspected of making the skin more permeable to foreign substances, which could potentially pose a risk to human health

Method used

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  • Emulsifying combination for obtaining low viscosity water-in-oil emulsions
  • Emulsifying combination for obtaining low viscosity water-in-oil emulsions
  • Emulsifying combination for obtaining low viscosity water-in-oil emulsions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0221] Example 1: Materials and methods used in the examples

[0222] The compounds used in the following examples are as follows:

[0223] - Emulsifiers and co-emulsifiers:

[0224] o MELs mixture 1B (HLB=9) prepared in point 1 below;

[0225] o Polyglyceryl-3 polyricinoleate, Oleon's RADIAMULS POLY2251K (HLB=3.5) (hereinafter referred to as "PGPR")

[0226] - Hydrophobic substances (oil phase):

[0227] ο capric / caprylic triglyceride, Oleon's Radia 7104 (hereinafter "MCT");

[0228] ο Isoamyl Laurate, Jolee 7750 by Oleon

[0229] ο Propylene Glycol Diheptanoate, Jolee 7202 from Oleon;

[0230] ο rapeseed oil, Lesieur

[0231] - Hydrophilic substances (water phase):

[0232] ο demineralized water;

[0233] Specific equipment used in the examples:

[0234] - RW 20 mechanical stirrer;

[0235] -Ultra T25 IKA-Labortechnik homogenizer;

[0236] - Brookfield Viscometer;

[0237] - Mastersizer 2000 particle sizer, Malvern.

[0238] 1. Acquisition of MELs

[023...

Embodiment 2

[0249] Example 2: Preparation of emulsified combination according to the invention

[0250] MELs mixture 1B and PGPR were heated to 60 °C and mixed in the ratios shown in Table 1 below using a mechanical stirrer at a speed of 500 rpm until a homogeneous mixture was obtained. Table 1 below summarizes the different emulsification combinations prepared.

[0251]

[0252] *Percentages shown are by weight relative to the total weight of the combination

[0253] Table 1 : emulsified combination according to the invention

[0254] Combinations 1-4 are liquids at ambient temperature and atmospheric pressure.

Embodiment 3

[0255] Example 3: Preparation of compositions and emulsions according to the invention

[0256] 1. Preparation of the composition

[0257] Compositions and emulsions were prepared in the amounts described in Table 2 below. The method of operation is as described in points 1 and 2 below.

[0258] Emulsifier Hydrophobic substance water box Comparative Composition 1 1g PGPR 30g MCT 69g water Composition 1 1g emulsified combination 1 30g MCT 69g water Composition 2 1g emulsified combination 2 30g MCT 69g water Composition 3 1g emulsified combination 3 30g MCT 69g water Composition 4 1g emulsified combination 4 30g MCT 69g water

[0259] Table 2 : the composition prepared in embodiment 3

[0260] The emulsified combination or PGPR according to the invention is mixed with the hydrophobic substance or substances (in this example MCT) of the oil phase with mechanical stirring at ambient temperature (ie ...

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Abstract

The present invention relates to an emulsifying combination, a composition comprising this combination, and the use of this emulsifying combination in small quantities to obtain a low viscosity water-in-oil emulsion.

Description

technical field [0001] The present invention relates to the preparation of emulsions such as water-in-oil emulsions, and more particularly to the use of MEL as a co-emulsifier. The present invention also relates to emulsifying combinations, emulsions and compositions containing them, and related preparation methods and uses. Background technique [0002] An emulsion is a dispersion of a liquid in the form of particles or droplets in another liquid, the two liquids are immiscible with each other. The two immiscible liquids of an emulsion are often referred to as the "water phase" and the "oil phase". The emulsions according to the invention are more particularly water-in-oil emulsions and thus comprise an aqueous phase dispersed in an oil phase. [0003] More particularly, the emulsions according to the invention have a low dynamic viscosity at 25°, ie below 10 Pa.s, preferably below 6 Pa.s. Such emulsions are advantageous for the preparation of sprayable products such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/39A61K8/06A23L29/10A61K8/60A61Q19/00
CPCA61K8/39A61K8/602A61Q19/00A61K8/062A23L29/10A01N25/06
Inventor H·佩特斯
Owner 欧荔安股份有限公司
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