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Oil-in-water sunscreen cosmetics

A technology of oil-in-water type and cosmetics, which is applied in the direction of cosmetics, cosmetic preparations, dressing preparations, etc., to achieve the effects of excellent storage stability, excellent moist touch, and good dispersibility

Active Publication Date: 2018-07-24
SHIN ETSU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, according to the conventional technology described in Patent Document 3, an oil-in-water cosmetic with excellent stability was obtained, but there were still disadvantages such as a sticky feeling derived from a specific polyether-modified silicone

Method used

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  • Oil-in-water sunscreen cosmetics
  • Oil-in-water sunscreen cosmetics
  • Oil-in-water sunscreen cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5、 comparative example 1～5

[0157] Using the formulations shown in Table 1 and Table 2, an attempt was made to prepare oil-in-water sunscreen cosmetics.

[0158] [Table 1]

[0159]

[0160] (Note 1) Hydrophobic treated titanium oxide, decamethylcyclopentasiloxane, polyglycerin-modified silicone (polyglyceryl-3 polydimethylsiloxyethyl dimethicone) mixed dispersion liquid; SPD-T5 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0161] (Note 2) Hydrophobic treated zinc oxide, decamethylcyclopentasiloxane, polyglycerin-modified silicone (polyglyceryl-3 polydimethylsiloxyethyl dimethicone) mixed dispersion liquid; SPD-Z5 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0162] (Note 3) Polyglyceryl-3 polydimethylsiloxyethyl polydimethylsiloxane; KF-6104 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0163] (Note 4) PEG-9 polydimethylsiloxyethyl polydimethylsiloxane; KF-6028P (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0164] (Note 5) Polyglyceryl-3 disiloxane polydimethylsiloxane; KF-6100 (manufa...

Embodiment 6

[0204] According to the formula shown in Table 5, make oil-in-water type sunscreen cosmetics.

[0205] [table 5]

[0206]

[0207] -Production method-

[0208] A: Components 1-6 are uniformly dispersed.

[0209] B: Components 7 to 13 were uniformly dispersed, and the mixture obtained in A was uniformly dispersed to obtain an oil-in-water emulsified cosmetic.

[0210] It was confirmed that the oil-in-water type sunscreen cosmetic obtained in Example 6 above has good emulsification properties, is not sticky, has excellent moist touch, has no changes due to temperature changes and time, and is also excellent in stability.

Embodiment 7

[0212] According to the formula shown in Table 6, the oil-in-water type sunscreen cosmetics were made.

[0213] [Table 6]

[0214]

[0215] (Note 11) Partially crosslinked silicone methylpolysiloxane swelling composition; KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.) partially crosslinked silicone: methylpolysiloxane = 25:75 (quality / quality)

[0216] (Note 12) Decamethylcyclopentasiloxane solution of (Alkyl Acrylate / Dimethicone) Copolymer; KP-545 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0217] (Alkyl Acrylate / Dimethicone) Copolymer: Decamethylcyclopentasiloxane = 30:70 (mass / mass)

[0218] -Production method-

[0219] A: Components 1 to 7 are uniformly dispersed.

[0220] B: Components 8 to 14 were uniformly dispersed, and the mixture obtained in A was uniformly dispersed to obtain an oil-in-water emulsified cosmetic.

[0221] It was confirmed that the oil-in-water type sunscreen cosmetic obtained in Example 7 above has good emulsification properties, ...

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Abstract

PROBLEM TO BE SOLVED: To provide an oil-in-water type sunscreen cosmetic having good dispersibility in an oil phase of an ultraviolet scattering agent, being excellent in storage stability, giving no stickiness, and imparting fresh feeling upon application.SOLUTION: An oil-in-water type sunscreen cosmetic is characterized in that (a) one or two or more silicone activators being modified with any of a carboxyl group, an amide group, a pyrrolidone carboxyl group, an ester group, a glycerin group and a polyglycerol group and having an HLB of 8 or less: 0.01 to 7 mass%, (b) a low-viscosity silicone oil having a viscosity of 1 to 100 mm / s at 25°C: 1 to 50 mass%, (c) an ultraviolet scattering agent consisting of hydrophobic treatment inorganic powders: 0.01 to 30 mass%, (d) a water-soluble polymer compound: 0.01 to 5 mass%, and (e) one or two or more nonionic surfactants having an HLB of 10 or more: 0.01 to 3 mass%, (f) water: 5 to 95 mass% are contained in a whole cosmetic and the (c) component is dispersed substantially in an oil phase.

Description

technical field [0001] The present invention relates to oil-in-water sunscreen cosmetics. Background technique [0002] For the purpose of protecting against ultraviolet rays, sunscreen cosmetics containing ultraviolet scattering agents such as titanium oxide and zinc oxide have been commercially available in the past. Due to the high refractive index of ultraviolet scattering agents, if a large amount is added, the skin will become white when applied. Conventionally, for example, the compounding of dispersing agents or the surface treatment of ultraviolet scattering agents have been used to increase the effectiveness of ultraviolet scattering agents in cosmetics. dispersion to avoid the problem. [0003] In addition, oil-in-water type sunscreen cosmetics are already commercially available because they have excellent moist touch when applied. In oil-in-water sunscreen cosmetics that contain ultraviolet scattering agents such as titanium oxide and zinc oxide, the metal ions...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/92A61K8/892A61K8/891A61K8/06A61Q17/04
CPCA61K8/062A61K8/19A61K8/89A61K2800/59A61Q17/04
Inventor 镰田亚纪子
Owner SHIN ETSU CHEM CO LTD