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Oil-in-water UV protection cosmetics

An oil-in-water type, ultraviolet technology, applied in the direction of cosmetics, cosmetic preparations, dressing preparations, etc., can solve the problems of whitening, rough feeling, sticky water-in-oil composition, etc.

Active Publication Date: 2021-11-05
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the water-in-oil type composition may be sticky or sticky when applied, and may have a rough feeling or whitishness due to the ultraviolet ray scattering agent

Method used

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  • Oil-in-water UV protection cosmetics
  • Oil-in-water UV protection cosmetics
  • Oil-in-water UV protection cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～26 and comparative example 1～7

[0105] Production of oil-in-water UV protection cosmetics (sunscreen cosmetics) with the compositions shown in Tables 1 to 3, the UV protection effect, the transparency of the preparation, the degree of no roughness when drying, and the adhesion to the skin Continuous evaluation. The results are shown in Tables 1 to 3.

[0106] (Preparation method of cosmetics)

[0107] 25 degreeC, the surfactant which added component (E) or if necessary was added, stirring, in the mixing tank filled with water, and the aqueous phase was prepared. On the other hand, the component (A) and the component (B) were heated and stirred at 80 degreeC, and the component (C) and the component (D) were further added, and the oil phase was prepared. Then, other components, such as the said oil phase and the pH adjuster added as needed, were added to this obtained water phase, and it stirred at 25 degreeC, and the oil-in-water type sunscreen cosmetics described in each table were obtained. In addition, ...

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Abstract

The present invention provides an oil-in-water type ultraviolet protection cosmetic having a good feeling of use that can be used every day and having a uniform and high ultraviolet protection effect. The oil-in-water type UV protection cosmetic of the present invention contains the following components (A), (B), (C), (D) and (E): (A) derived from p-methoxycinnamic acid-2-ethylhexyl Esters, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, 4-tert-butyl-4'-methoxybenzidine Acylmethane, Octocrylene, 2-Ethylhexyl Dimethoxybenzylidenedioxoimidazolidinyl Propionate, Diethylaminohydroxybenzoyl Hexyl Benzoate, Bis-Ethylhexyloxyphenol One or more selected from oxyphenyltriazine, methylenebisbenzotriazolyltetramethylbutylphenol, phenylbenzimidazole sulfonic acid, and benzylidene malonate polysiloxane (B) liquid oil at 20°C (except component (A)); (C) dextrin fatty acid ester; (D) 0.5% by mass or more of hydrophobic silica and 2 mass% or less; and (E) a water-soluble polymer having a structural unit derived from (meth)acrylic acid or sulfonic acid.

Description

technical field [0001] The present invention relates to an oil-in-water emulsified UV protection cosmetic. Background technique [0002] For UV-resistant sunscreen cosmetics, in order to block the radiation of ultraviolet rays to the skin and obtain a high SPF (Sun Protection Factor, sun protection factor) value, a UV absorber or a UV scattering agent is formulated. In particular, water-in-oil compositions containing these are widely used because they are high-SPF sunscreen cosmetics excellent in water resistance. [0003] However, the water-in-oil type composition may be sticky or sticky when applied, and may have a rough feeling or whitishness due to the ultraviolet ray scattering agent. [0004] Therefore, oil-in-water type sunscreen cosmetics that can suppress stickiness and stickiness and have a good feeling of use have been proposed (Patent Documents 1 to 4). [0005] (Patent Document 1) Japanese Patent Application Laid-Open No. 2008-162930 [0006] (Patent Document...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/25A61K8/06A61K8/35A61K8/37A61K8/49A61K8/73A61K8/81A61Q17/04
CPCA61K8/06A61K8/25A61K8/35A61K8/37A61K8/40A61K8/41A61K8/46A61K8/49A61K8/73A61K8/81A61K8/891A61Q17/04
Inventor 藤井智也御田村侑香里泷泽浩之
Owner KAO CORP
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