Oil-in-water emulsion composition

An emulsified composition, oil-in-water type technology, applied in cosmetic preparations, pharmaceutical formulas, cosmetic preparations and other directions, can solve the problems of large particle size distribution width, unevenness, large particle size of oil droplets, etc. The effect of small distribution width and high stability over time

Active Publication Date: 2019-10-08
SUNSTAR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The inventors of the present invention have continued to conduct intensive research to develop an oil-in-water emulsified cosmetic that blends white pond flower seed oil that is less sticky and has a moisturizing and lubricating feel. When sucrose fatty acid ester and glycerin monofatty acid ester are used as surfactants, oil droplet particles with large particle size and large particle size distribution width are formed, which are not uniform

Method used

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  • Oil-in-water emulsion composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0092] The following examples are given to describe the present invention in more detail, but the present invention is not limited to the following examples.

manufacture example

[0093] Production example: Preparation of oil-in-water emulsified cosmetics

[0094] An oil phase and a water phase were respectively prepared by mixing each component by the compounding quantity shown to the Examples 1-10 of following Table 1 and Comparative Examples 1-4. Next, after heating the water phase and the oil phase to 80 to 85°C, the oil phase was added to the water phase, emulsified using a homomixer, and cooled to about 45°C. Next, neutralizers, alcohols, and additives were added and uniformly stirred in the compounding amounts shown in Examples 1 to 10 and Comparative Examples 1 to 4 in Table 1 below, thereby preparing Examples 1 to 10 and Comparative Examples 1 to 4 cosmetics.

[0095] After preparing the cosmetics of Examples 1 to 10 and Comparative Examples 1 to 4, it was confirmed visually that all the cosmetics were emulsified.

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Abstract

Provided is an oil-in-water emulsion composition which contains meadowfoam oil having uniform oil particles with a small average particle size and a narrow particle size distribution. Specifically, provided is an oil-in-water emulsion composition containing the following components: (A) meadowfoam oil; (B) N-acylglutamic acid and/or a salt thereof; (C) a water-soluble sucrose fatty acid ester; and(D) a glycerin mono-fatty acid ester.

Description

technical field [0001] The present invention relates to an oil-in-water emulsion composition and the like. Background technique [0002] The oil-in-water (O / W) emulsified composition whose continuous phase is the water phase is widely used as a cream, lotion, etc. (for example, the following Patent Documents 1 to 3, etc.). [0003] It is known that the particle size of oil droplets, the repulsion between oil droplets and the viscosity of the continuous phase affect the stability of oil-in-water emulsified cosmetics. For example, when the particle size of the oil droplet particles is large, the oil layer and the water phase will be separated over time. Therefore, in order to improve the stability of the composition, the method of using a high-pressure emulsifier such as a homogenizer or a nanoemulsifier, D-phase emulsification method, etc. to reduce the particle size of oil droplet particles, etc. (for example, refer to Patent Documents 4 and 5). [0004] prior art literat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/37A61K8/06A61K8/44A61K8/60A61K8/92
CPCA61K8/06A61K8/37A61K8/44A61K8/60A61K8/97
Inventor 野田浩代
Owner SUNSTAR KK
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