Aerosol cosmetics

Aerosol cosmetics using metal oxide powders coated with N-acyl glutamic acid in a water-in-oil emulsion composition address aggregation and caking issues, ensuring uniform spraying and a non-sticky feel, enhancing skincare and sunscreen performance.

JP7883353B2Inactive Publication Date: 2026-07-01KOSE HOLDINGS CORP
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Patent Information

Application Number
JP2019219292
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-12-05
Filing Date
2019-12-04
Publication Date
2026-07-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Aerosol cosmetics containing metal oxide powders face issues with aggregation and caking, leading to poor spraying performance and uneven color distribution, while also lacking a fresh and non-greasy feel.

Method used

A water-in-oil emulsion composition combined with metal oxide powders coated with N-acyl glutamic acid or its salt, along with specific surfactants and liquefied gas, forms an aerosol cosmetic that prevents powder aggregation and ensures uniform spraying and non-sticky feel.

Benefits of technology

The aerosol cosmetic maintains powder dispersibility and prevents color unevenness, providing a uniform spray with a fresh, non-sticky feel, suitable for skincare and sunscreen applications.

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Abstract

To provide an aerosol cosmetic which can be uniformly sprayed, causes no color unevenness of a cosmetic film and gives a fresh use feeling without stickiness or oily feeling.SOLUTION: There is provided an aerosol cosmetic which comprises stock solution, which is water-in-oil type emulsion composition, containing the following components (A) to (E) and liquid gas as propellant, wherein the total content mass of the components (C) to (E) in the stock solution is 20 to 70 mass%. (A) 0.1 to 10 mass% of a metal oxide powder subjected to a surface coating treatment with an N-acylglutamic acid or a salt thereof, (B) 0.01 to 5 mass% of a nonionic surfactant having an HLB value of 3 to 7, (C) a polyhydric alcohol having an IOB value of 1.5 to 3.5, (D) ethanol and (E) water.SELECTED DRAWING: None
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Citation Information

Patent Citations

  • Cosmetic emulsion containing non-covered silicone elastomer and non-silicone-treated pigment

    JP2007308490A

  • Aerosol type sunscreen cosmetic

    JP2010120871A

  • Aerosol cosmetics

    JP2015147752A

  • Spray type sunscreen cosmetic

    JP2017071602A

  • Water-in-oil type sunscreen

    JP2017137301A