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Aerosol-type sunscreen cosmetic

An aerosol and cosmetics technology, applied in the direction of cosmetics, cosmetic preparations, dressing preparations, etc., can solve the problems of complete whitening, unnatural, insoluble, etc., and achieve excellent usability, good sprayability, and defense high effect

Active Publication Date: 2015-10-21
KOBAYASHI KOSE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a large amount of metal oxide is mixed, there will be the following problems: the powder will feel astringent when used, and the finish will be white and unnatural; etc., and an organic ultraviolet absorber with a high ultraviolet protection effect Most of them are poorly soluble (insoluble in water and also in non-polar oils), and sometimes cause stability problems, and various researches have been carried out on this

Method used

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  • Aerosol-type sunscreen cosmetic
  • Aerosol-type sunscreen cosmetic
  • Aerosol-type sunscreen cosmetic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6 and comparative example 1～8

[0050] An aerosol-type sunscreen cosmetic was prepared using the composition shown in Table 1 and the following manufacturing method. The obtained cosmetics were evaluated by the following methods, and the results are shown in Table 1 together.

[0051]

[0052] A: Components (1) to (3) and (6) to (8) are heated and dissolved.

[0053] B: After mixing components (4) to (5) and (9) and (10) in A, (11) is uniformly dispersed.

[0054] C: Components (12) to (16) are mixed, added to B and emulsified to obtain a stock solution.

[0055] D: After filling 9 g of the stock solution obtained in C into a transparent glass and aluminum pressure-resistant container, the valve was fixed, and 21 g of LPG was filled into the pressure-resistant container through the valve to obtain an aerosol-type sunscreen cosmetic.

[0056] (Evaluation method 1: precipitation of crystals)

[0057] The aerosol compositions of Examples 1 to 6 and Comparative Examples 1 to 8 were filled into pressure-res...

Embodiment 7

[0092] Example 7: Aerosol sunscreen

[0093]

[0094] (Note 1) Microparticle titanium dioxide MTY-110M3S (manufactured by TAYCA Corporation)

[0095] (Manufacturing method)

[0096] A: Component (8) is dispersed with appropriate amount of component (2) and component (7).

[0097] B: Components (1) to (3) are heated and dissolved.

[0098] C: Components (4) to (6) and B are mixed in A and dispersed uniformly.

[0099] D: Components (9) to (12) are mixed, added to C and emulsified to obtain a stock solution.

[0100] E: After filling 6 g of the stock solution obtained in D into an aluminum pressure-resistant container, the valve was fixed, and 0.15 24 g of LPG was filled into the pressure-resistant container through the valve to obtain an aerosol-type sunscreen cosmetic.

[0101] In Example 7, the adhered part of the aerosol was seen to be whitish immediately after spraying, but immediately became transparent, and the precipitation of bisethylhexyloxyphenol methoxyphenyl ...

Embodiment 8

[0102] Example 8: Aerosol sunscreen

[0103]

[0104]

[0105] (Note 2) IPSE (manufactured by Nippon Seika Co., Ltd.)

[0106] (Note 3) FINEX-50S-LP2 (manufactured by Sakai Chemical Co., Ltd.)

[0107] (Manufacturing method)

[0108] A: Components (1) to (3) are heated and dissolved.

[0109] B: Components (4) to (10) are mixed with A and dispersed uniformly.

[0110] C: Components (11) to (14) are mixed, added to B, and emulsified.

[0111] D: After filling 9 g of the stock solution obtained in C into an aluminum pressure-resistant container, the valve was fixed, and 21 g of LPG 0.15 was filled into the pressure-resistant container through the valve to obtain an aerosol-type sunscreen cosmetic.

[0112] In Example 8, precipitation of bisethylhexyloxyphenol methoxyphenyl triazine was not confirmed, and it was an aerosol type sunscreen without stickiness in terms of touch.

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Abstract

The present invention addresses the problem of providing a highly transparent aerosol-type sunscreen having high ultraviolet-protective effects that is free of tackiness and is capable of being uniformly sprayed on skin or hair, by stably blending a slightly soluble ultraviolet absorber having high ultraviolet-protective ability under coexistence of a liquefied gas. Provided is an aerosol containing: an undiluted solution which is a water-in-oil emulsion containing components (a) through (c), where component (a) is 1-3% by mass bis-ethylhexyloxyphenol methoxyphenyl triazine, component (b) is 5-50% by mass of a diester of propylene glycol and a C8-C10 fatty acid, and component (c) is 5-15% by mass of ethylhexyl methoxycinnamate; and a liquefied gas as a propellant, the aerosol-type sunscreen cosmetic characterized in that the mass ratio of component (a) and components (b) and (c) in the water-in-oil emulsion is in the range of 1:10 to 1:20.

Description

technical field [0001] The present invention relates to an aerosol-type sunscreen cosmetic, which uses a water-in-oil emulsion containing bisethylhexyloxyphenol methoxyphenyl triazine and a specific ester oil as a stock solution, and uses liquefied gas As a propellant; more specifically, the present invention relates to an aerosol type sunscreen cosmetic which is excellent in stability so that there is no clogging, can be uniformly sprayed to the skin and hair, has transparency and is not sticky. Background technique [0002] The purpose of sunscreen cosmetics is to shield the ultraviolet rays in the sun's rays and prevent the skin from being adversely affected by ultraviolet rays. A sunscreen cosmetic is being developed by mixing metal oxides such as zinc oxide and titanium dioxide with organic ultraviolet absorbers. Has a high UV protection effect. However, when a large amount of metal oxide is mixed, there will be the following problems: the powder will feel astringent w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/49A61K8/02A61K8/31A61K8/37A61Q17/04
CPCA61Q17/04A61K8/046A61K8/064A61K8/37A61K8/375A61K8/4966A61K2800/262
Inventor 佐久间慧
Owner KOBAYASHI KOSE CO LTD
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