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Transparent solid composition

A technology of transparent solids and compositions, applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., can solve the problems of insufficient ultraviolet defense effect and poor stability, and achieve high transparency and stability, and excellent stability and high ultraviolet rays The effect of the defensive effect

Pending Publication Date: 2019-04-02
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the transparent solid composition is more than 4% by mass and the ultraviolet absorber is added, the stability of the solid composition tends to be poor, and the ultraviolet protection effect is insufficient.

Method used

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Examples

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Embodiment

[0078] Next, examples are given to further specifically illustrate the present invention. The present invention is not limited in any way by the following examples. Unless otherwise specified, the compounding quantity is mass %.

[0079] In addition, Examples and Comparative Examples were produced by conventional methods. Specifically, the curing agent (12-hydroxystearic acid, dextrin fatty acid ester, etc.) ) was dispersed until it became uniform with a homomixer, and after degassing, it was solidified at room temperature and each sample was obtained.

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Abstract

The invention aims to provide a transparent solid composition which provides high ultraviolet ray protection and has excellent formability and stability. A transparent solid composition which has a refractive index of 1.47-1.55 and includes (a) 1-15 mass% of 12-hydroxystearic acid, (b) an oil component having a refractive index of 1.5-1.7, (c) an oil component having a refractive index of 1.3 to less than 1.5, and (d) 5-50 mass% of one or more ultraviolet absorbers.

Description

technical field [0001] The present invention relates to a transparent solid composition which is transparent and has a high ultraviolet protection effect, and a transparent solid cosmetic containing the transparent solid composition as a substrate. Background technique [0002] Oil-based transparent cosmetics mainly have the advantages of beautiful appearance and transparent makeup when applied, so various transparent bases have been studied. [0003] For example, Patent Document 1 discloses a cosmetic using a transparent base having a refractive index of 1.45 to 1.54 consisting of 12-hydroxystearic acid and an oil component. Furthermore, Patent Document 2 discloses a transparent solid cosmetic consisting of 12-hydroxystearic acid, heavy liquid paraffin, and a liquid oily component. A transparent solid cosmetic made of transparent liquid oily ingredients and methylphenyl polysiloxane. [0004] In addition, as a transparent cosmetic containing dextrin fatty acid ester, Pate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/365A61K8/02A61K8/31A61K8/35A61K8/37A61K8/41A61K8/44A61Q1/00A61Q1/04A61Q17/04A61Q19/00
CPCA61K8/35A61K8/37A61Q1/04A61Q17/04A61K8/0216A61K8/0229A61K8/361A61K8/891A61K8/362A61Q1/02A61K2800/262A61K8/365A61K2800/26A61K8/022A61K8/31A61K8/411A61K8/4966A61K8/88A61K8/92
Inventor 久保田俊五味宏树
Owner SHISEIDO CO LTD
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