JP2002348210A - Water-in-oil type emulsion cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-in-oil type emulsion cosmetic, specifically excellent in high internal phase, flow property, moisture retention, long-term stability, and makeup persistence, free from hindering the function of skin physiology (leaving no burden on the skin), having an excellent functionality (water resistance, protection effect), and extremely excellent in usability (good in extension when applied, good in freshness during use, the fit and soft feeling on the skin, and the feeling of being refreshed after use) and safety (a low irritativeness). SOLUTION: The water-in-oil type emulsion cosmetic contains A) a polyether modified silicone of 0.05-10.0 wt.%, B) a water soluble high molecular electrolysis of 0.05-5.0 wt.%, and C) an inorganic salt and/or an organic salt of 0.05-5.0 wt.%, more preferably, 0.1-5.0 wt.% of a glycerin branched fatty acid and/or an unsaturated fatty acid ester and a sorbitan branched fatty acid and/or an unsaturated fatty acid ester.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-in-oil type emulsified cosmetic, and more particularly, it contains a specific emulsifier and an electrolyte, and is excellent in moisturizing property, feeling in use, excellent in stability over time and safety. And a water-in-oil type emulsified cosmetic.

[0002]

2. Description of the Related Art Various water-in-oil type emulsified cosmetics have been developed. However, they have high internal phase, excellent fluidity, stability over time, and excellent moisture retention, feeling of use, and safety. It is difficult to obtain water-in-oil type emulsified cosmetics, and two-phase separation type cosmetics are at the center of the market, and water-in-oil type emulsified cosmetics currently on the market are satisfactory in performance. There are few cosmetics and there are many cosmetics with some problems.

[0003]

Conventionally, in order to obtain a fresh and refreshing feeling of use in water-in-oil type emulsified cosmetics, the internal water phase ratio has been increased, and silicone oil has been used as an oil component. The electrolyte is added. However, in order to prepare a high internal water phase type water-in-oil type emulsified cosmetic composition containing silicone oil and having a high internal water phase ratio and excellent fluidity, the conventional technology has a problem in terms of stability over time. I can't get anything satisfactory. An object of the present invention is to provide a water-in-oil type emulsified cosmetic which is excellent in high internal phase, fluidity, stability over time, and sufficiently satisfactorily in terms of moisture retention, usability, safety and the like. To be

[0004]

Means for Solving the Problems As a result of intensive studies conducted by the present inventors, the present invention contains a polyether-modified silicone, a water-soluble polymer electrolyte, an inorganic salt and / or an organic salt, and more preferably a glycerin-branched fatty acid. And / or unsaturated fatty acid ester, sorbitan branched fatty acid and / or unsaturated fatty acid ester, thereby having a high internal phase, excellent fluidity, stability over time, moisturizing property, and usability (fresh and fresh feeling). It has been found that a water-in-oil type emulsified cosmetic having excellent properties can be obtained, and the present invention has been completed.

That is, the present invention relates to a polyether-modified silicone of 0.05 to 10.0% by weight of a water-soluble polymer electrolyte.
0.05-5.0% by weight, inorganic salt and / or organic salt
0.05 to 5.0% by weight, more preferably one or both of glycerin branched fatty acid and / or unsaturated fatty acid ester, sorbitan branched fatty acid and / or unsaturated fatty acid ester. It is a water-in-oil type emulsified cosmetic characterized by the following.

Hereinafter, the configuration of the present invention will be described in detail. Polyether-modified silicone (silicone copolyol)
Is a polyoxyalkylene-modified organopolysiloxane having a polyoxyalkylene chain at the side chain and / or terminal of the silicone main chain. Furthermore, it refers to those having hydrogen, an alkyl chain having 1 to 18 carbon atoms, a phenyl group, and a fluoroalkyl chain having 1 to 10 carbon atoms at the side chain and / or the terminal. Specific examples include dimethicone copolyol, polyoxyalkylene / alkyl co-modified organopolysiloxane, and polyoxyalkylene / perfluoroalkyl co-modified organosiloxane. For example, a polyoxyethylene / methyl polysiloxane copolymer [Shin-Etsu Chemical Silicone KF6015 (HLB =
4.5) Silicone KF6017 (HLB = 4.5)
Toray Dow Corning Silicone SH3772C
(HLB = 6.0), ABIL WE-09 = cetyl dimethicone copolyol / polyglyceryl-4 / hexyl laurate from Goldschmidt-Ha, a polyoxyalkylenealkyl-modified organopolysiloxane [Goldschmidt-Ta]・ HAIL ABIL EM-90 = methylpolysiloxane ・ cetylmethylpolysiloxane ・ poly (oxyethylene / oxypropylene) methylpolysiloxane polymer] as polyoxyethylene / trifluoropropyl co-modified silicone (HLB = 4) polyether There are polyethylene glycol, polypropylene glycol and polyoxyethylene / polyoxypropylene copolymer. HLB value is 1
Those in the range of from 6 to 6 are particularly preferred. If the HLB value exceeds 6, there is a problem that the W / O emulsifying property and the sweat resistance are reduced.

The water-soluble polyelectrolyte is alginate, carrageenan, alge colloid as a seaweed extract, pectate as a plant fruit mucilage, xanthan gum as a microbial leachate, carboxymethyl cellulose Na as a cellulose derivative, and acrylic acid copolymer. Examples include carboxyvinyl polymer, sodium polyacrylate, other sodium hyaluronate, sodium chondroitin sulfate, DNA-Na and the like.

As inorganic salts, sodium chloride, potassium chloride, magnesium chloride, magnesium sulfate, as organic salts, amino acid salts such as sodium L-glutamate, sodium L-aspartate, sodium pyrrolidone carboxylate; and as organic acid salts, sodium lactate; Na citrate, Na malate, Na tartrate,

As the glycerin-branched fatty acid and / or unsaturated fatty acid ester, glycerin isostearate (H
LB = 3.7), diglycerin isostearate (HL
B = 5.5), diglycerin diisostearate (HL
B = 3.7), polyglycerol diisostearate (HLB = 6.0), polyglycerol triisosterate (HLB = 4.0), decaglyceryl pentaisostearate (HLB = 3.5), other octane Glycerin acid, polyglyceryl-4 isostearate, glyceryl monooleate (HLB = 3.7), diglyceryl monooleate (HLB = 5.5), diglycerol dioleate (HLB = 3.7), pentaoleic acid Hexaglyceryl, decaglyceryl pentaoleate (H
LB = 3.5), decaglyceryl heptaoleate, and the like. Sorbitan branched fatty acids and / or unsaturated fatty acid esters include sorbitan isostearate (HLB).
= 5.0), sorbitan sesquiisostearate (HL
B = 4.5), sorbitan monooleate (HLB =
4.3), sorbitan sesquioleate (HLB = 3.
7), sorbitan trioleate (HLB = 1.7) and the like.

The water-in-oil emulsified cosmetic of the present invention may contain, if necessary, a monohydric alcohol, organic and inorganic pigment cosmetics, drugs, ultraviolet absorbers, coloring agents, fragrances, preservatives, antioxidants and the like. It can be properly blended as long as the effect is not impaired.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

[0012]

[0013]

[0014] Example 15 Cleansing Emulsion Ingredients Compounding Amount (% by Weight) Isononyl Isononanoate 8.0 Neopentyl Glycol Dioctanoate 7.0 Glyceryl Trioctanoate 10.0 Decamethylcyclopentasiloxane 10.0 Cetyl Dimethicone Copolyol / Polyglyceryl Isostearate- 4. Lauric acid 2.0 Hexyl glycerin isostearate 1.0 1, 3, Butylene glycol 3.0 Xanthan gum 0.3 Magnesium sulfate 0.5 Methyl P-hydroxybenzoate 0.2 Purified water 48.0 Example 16 Sunburn Emulsion for prevention Ingredients Component amount (% by weight) Di-2ethylhexyl succinate 7.0 Glyceryl trioctanoate 8.0 Decamethylcyclopentasiloxane 17.0 2-Ethylhexyl methoxycinnamate 5.0 Cetyl dimethicone copoly All isostearate polyglyceryl-4.laurate 3.0 hexyl Na alginate 0.3 Pyrrolidone carboxylate Na 0.5 glycerin 3.0 Methyl p-hydroxybenzoate 0.2 Purified water 56.0 Example 17 Liquid foundation Ingredients Compounding amount (% by weight) Silicone-treated titanium oxide 7.0 Silicone-treated yellow iron oxide 1.4 Silicone-treated black iron oxide 0.4 Silicone-treated black iron oxide 0.2 Silicone-treated ultrafine titanium oxide 4.0 Mica 2.0 Trioctane Glyceryl acid 7.0 isononyl isononanoate 8.0 decamethylcyclopentasiloxane 10.0 2-ethylhexyl paramethoxycinnamate 4.0 (palmitic acid / 2-ethylhexanoic acid) dextrin 0.5 polyoxyalkylene-modified organopoly Loxane 2.0 Hexyl glycerin isostearate 1.0 1,3 Butylene glycol 3.0 Xanthan gum 0.3 Magnesium sulfate 0.5 Methyl P-hydroxybenzoate 0.2 Purified water 48.5 Example 18 Hand lotion ingredients Formulation Amount (% by weight) Perfluoropolysiloxane 10.0 Perfluoropolyether 15.0 Fluorine-modified silicone resin 2.0 Perfluoroalkyl / polyoxyethylene 3.0 Co-modified silicone Glycerin 2.0 Magnesium sulfate 0.5 Xanthan gum 0 0.3 methyl p-hydroxybenzoate 0.2 purified water 67.0

[0019]

According to the present invention, a high internal phase, excellent fluidity, excellent moisture retention and stability over time, and functionality (water resistance, protective effect),
It is possible to provide a water-in-oil composition and a cosmetic which are extremely excellent in usability (elongation, freshness, gentle skin contact, and refreshing feeling after use) and safety.

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Claims (1)

[Claims] 1. The following components (a), (b) and (c): (a) 0.05 to 10.0% by weight of a polyether-modified silicone (b) water-soluble polymer electrolyte 0.05 to 5. 0% by weight (c) 0.05 to 3.0% by weight of an inorganic salt and / or an organic salt, more preferably a glycerin branched fatty acid and / or unsaturated fatty acid ester, sorbitan branched fatty acid and / or unsaturated A water-in-oil emulsion cosmetic containing a fatty acid ester, 0.1 to 5.0% by weight.