Cosmetic composition

A cosmetic composition and cosmetic technology, applied in the directions of cosmetics, cosmetic preparations, cosmetic preparations, etc., can solve problems such as stickiness, and achieve the effects of reducing stickiness and inhibiting stickiness.

Active Publication Date: 2013-02-13
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also problems with time-dependent changes in cosmetics after application or sticky feeling due to sebum, sweat, etc.

Method used

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  • Cosmetic composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0075] Next, examples of the present invention will be described.

Synthetic example 1

[0077] Add 82 g of lauryl methacrylate (LMA), 3 g of methacrylic acid (MAA), 15 g of ethylene glycol dimethacrylate (EGDMA), and 2 g of lauroyl peroxide into a beaker, mix and stir to dissolve them. 400 g of ion-exchanged water in which 0.75 g of sodium N-stearyl-N-methyltaurate (SMT) was dissolved was added thereto, and dispersed to a particle diameter of 2.2 μm using a homomixer.

[0078] This dispersion liquid was poured into a 4-neck flask, and nitrogen substitution was performed for 30 minutes, stirring. The temperature inside the flask was heated to 80° C. with an oil bath, polymerization was performed for 5 hours from reaching 80° C., and then cooled to room temperature. To the dispersion of polymerized particles, 3.9 g of 1N NaOH was dropped for neutralization to obtain a resin particle dispersion.

[0079] The resin particle dispersion was freeze-dried, and dried with water to obtain a crosslinked (meth)acrylate resin powder (average particle diameter: 2.2 μm).

Embodiment 1~24

[0080] (Examples 1-24, Comparative Examples 1-4)

[0081] Cosmetic compositions with the compositions shown in Table 1 were prepared and evaluated according to the following methods. pH was measured with HORIBA pH METER F-22. The results are shown in Table 1.

[0082] (modulation method)

[0083] Each component shown in Table 1 was uniformly mixed and prepared according to a usual method so that the total amount thereof becomes 100 (mass %).

[0084] (Evaluation method)

[0085] 10 panelists applied each cosmetic composition to the skin (0.2 mL on the forearm), and evaluated the following items according to the evaluation criteria. The average value of the evaluation criteria of 10 special evaluation team members was taken for each item, and the results are shown in Table 1.

[0086] ◎ More than 5 ~ less than 6

[0087] ○ More than 4 ~ less than 5

[0088] ○ More than △3~less than 4

[0089] △ More than 2 ~ less than 3

[0090] × More than 1 ~ less than 2

[0091] (1...

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Abstract

The disclosed cosmetic composition contains: (A) tris(hydroxymethyl)aminomethane,(B) at least one disinfectant selected from among triclosan, isopropyl methylphenol, silver-supported inorganic particles, lysozyme chloride, benzalkonium chloride, cetylpyridinium chloride, and 3,4,4'-trichlorocarbanilide,(C) an antioxidant,and (D) a medium consisting of water and ethanol with a mass ratio between 99:1 and 10:90. The mass of component (A) constitutes between 0.01% and 5% of the total mass of the cosmetic composition.

Description

technical field [0001] The present invention relates to cosmetic compositions. Background technique [0002] In cosmetics that are applied directly to the skin, the feeling of use is one of the important factors. However, there is also a problem that the cosmetic changes over time after application, or that stickiness occurs due to sebum, sweat, or the like. [0003] On the other hand, in order to obtain a refreshing touch, for example, Patent Document 1 describes a liquid deodorant containing an unsaturated fatty acid as an essential component and containing a bactericide, an antioxidant, an aqueous medium, and the like. [0004] prior art literature [0005] Patent Literature [0006] Patent Document 1: Japanese Patent Laid-Open No. 2006-76997 [0007] Patent Document 2: Japanese Patent Laid-Open No. 2009-28071 SUMMARY OF THE INVENTION [0008] The inventors of the present invention have specifically examined the feeling of use of the conventional cosmetic compositi...

Claims

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Application Information

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IPC IPC(8): A61K8/41A61K8/19A61K8/31A61K8/34A61K8/42A61K8/49A61K8/66A61K8/67A61K8/86A61Q15/00
CPCA61Q19/00A61K8/66A61Q17/005A61K8/678A61K8/19A61K8/025A61K8/416A61K8/41A61K8/86A61K8/347
Inventor 长泽真木土仓丰树石田浩彦中野瑛子
Owner KAO CORP
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