JP2002363030A - Water-in-oil type emulsion cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a water-in-oil type emulsion cosmetic which has especially excellent fluidity, moisture retaining property, stability with time and durability of makeup, does not obstruct physiological function of the skin, (does not impose a burden on the skin), has excellent functionality (water resistance and protection effect) and extremely excellent usability (excellent spread in coating, freshness in use, soft touch to the skin and refreshing feeling after use) and safety (low irritation). SOLUTION: This oil-in-water type emulsion cosmetic comprises (A) 0.05-5.0 wt.% of a POE hardened castor oil and/or POE castor oil or a polyoxyethylene sorbitol tetraunsaturated fatty acid and/or branched fatty acid ester, (B) 0.1-5.0 wt.% of a glycerol branched fatty acid and/or unsaturated fatty acid ester or a sorbitan branched fatty acid and/or unsaturated fatty acid ester and preferably further 0.05-5.0 wt.% of a water-soluble polymer electrolyte and/or an electrolyte, 0.05-10.0 wt.% of a polyether modified silicone and 0.1-20.0 wt.% of a dextrin esterified with a fatty acid ester containing a straight-chain fatty acid, branched-chain fatty acid and/or unsaturated fatty acid.

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 to polyoxyethylene hydrogenated castor oil and / or polyoxyethylene castor oil, polyoxyethylene sorbitol tetraunsaturated fatty acid and / or Branched fatty acid ester, glycerin branched fatty acid and / or unsaturated fatty acid ester, sorbitan branched fatty acid and / or
Or, it contains an unsaturated fatty acid ester, a water-soluble polymer electrolyte, an electrolyte, a polyether-modified silicone, a fatty acid ester containing a linear fatty acid and a branched fatty acid and / or an unsaturated fatty acid, and has fluidity, moisture retention, and stability over time. The present invention relates to a water-in-oil type emulsified cosmetic which is excellent in cosmetic persistence, feeling of use and safety.

[0002]

2. Description of the Related Art Conventionally, various water-in-oil type emulsified cosmetics have been developed, but they are excellent in fluidity, stability over time, long-lasting makeup, excellent in moisturizing property, feeling in use, and safety. It is difficult to obtain water-in-oil type emulsified cosmetics, and two-phase separated type cosmetics are at the center of the market. At present, there are few 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 base in water-in-oil type emulsified cosmetics which is excellent in fluidity, stability over time, persistence, moisture retention, usability, safety and the like. Do

[0004]

The present inventors have conducted intensive studies and found that polyoxyethylene hydrogenated castor oil and / or polyoxyethylene castor oil, polyoxyethylene sorbitol tetraunsaturated fatty acid and / or branched fatty acid ester. And glycerin branched fatty acid and / or unsaturated fatty acid ester, sorbitan branched fatty acid and / or unsaturated fatty acid ester, more preferably water-soluble polymer electrolyte and / or electrolyte, polyether-modified silicone, linear fatty acid and By containing a fatty acid esterified dextrin containing a branched fatty acid and / or an unsaturated fatty acid,
It has been found that a water-in-oil emulsified cosmetic excellent in fluidity, stability over time, and excellent in moisturizing property and usability (fresh and fresh feeling) and safety is obtained, and the present invention has been completed.

That is, the present invention relates to 0.05 to 5.0% by weight of polyoxyethylene hydrogenated castor oil and / or polyoxyethylene castor oil, polyoxyethylene sorbitol tetrabranched fatty acid and / or unsaturated fatty acid ester and glycerin content. It contains a branched fatty acid and / or unsaturated fatty acid ester, a sorbitan branched fatty acid and / or an unsaturated fatty acid ester, more preferably 0.05 to 5.0% by weight of a water-soluble polymer electrolyte and / or an electrolyte, and a polyether-modified silicone. Water-in-oil containing 0.05 to 10.0% by weight, and 0.1 to 20.0% by weight of a fatty acid-esterified dextrin containing a linear fatty acid and a branched fatty acid and / or an unsaturated fatty acid. It is a type emulsion cosmetic.

[0006] Polyoxyethylene hydrogenated castor oil and polyoxyethylene castor oil, which will be described in detail below, are oligomer-type surfactants having high safety. HLB having an HLB of 8 or more is used in the present invention. Polyoxyethylene hydrogenated castor oil 20 (Nikkor HC
O-20 HLB = 10.5) Polyoxyethylene hydrogenated castor oil 40 (Nikkor HC
O-40 HLB = 12.5) Polyoxyethylene hydrogenated castor oil 50 (Nikkor HC)
O-50 HLB = 13.4) Polyoxyethylene hydrogenated castor oil 60 (Nikkor HC)
O-60 HLB = 14.0) Polyoxyethylene hydrogenated castor oil 80 (Nikkor HC)
O-80 HLB = 15.0) Polyoxyethylene hydrogenated castor oil 100 (Nikkor H
Polyoxyethylene hydrogenated castor oil such as CO-100HLB = 16.5), and 20-10
Polyoxyethylene castor oil with an added mole number of 0 corresponds to this. Polyoxyethylene sorbitol tetraunsaturated fatty acid and / or branched fatty acid ester is an oligomer type surfactant having excellent emulsifying power, and Nikkor GO-43 having an ethylene oxide addition mole number of 30, 40, 60.
0, Nikkor GO-440, Nikkor GO-46
0 corresponds to this. These are large in molecular weight and hypoallergenic.

The glycerin branched fatty acid and / or unsaturated fatty acid ester includes 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. In addition to the above components, all components having an HLB of 1 to 6 are included in this.

The water-soluble polyelectrolytes are 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. The above components are typical components, and include all water-soluble polymer electrolytes other than the above components.

The electrolyte is sodium chloride, potassium chloride, magnesium chloride, magnesium sulfate as an inorganic salt, and sodium L-glutamate as an amino acid salt as an organic salt.
Na aspartate, Na pyrrolidone carboxylate, Na lactate, Na citrate, N malate as organic acid salts
a, Na tartrate, Na glycolate and the like.
The above components are typical components, and include all electrolytes other than the above components.

The polyether-modified silicone (silicone copolyol) is a polyoxyalkylene-modified organopolysiloxane having a polyoxyalkylene chain at a side chain and / or a terminal of a 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 / methylpolysiloxane copolymer [silicone KF60 of Shin-Etsu Chemical Co., Ltd.]
15 (HLB = 4.5) Silicone KF6017 (H
LB = 4.5), etc., silicone SH3772C (HLB = 6.0) from Toray Downing, ABIL WE-09 = Acetyl dimethicone copolyol, isostearic acid, polyglyceryl-4, lauric acid from Goldschmidt-Ta-Ha. Hexyl], polyoxyalkylene alkyl-modified organopolysiloxane [ABIL EM-90 from Goldschmidt-Ta-Her = methylpolysiloxane / cetylmethylpolysiloxane / poly (oxyethylene / oxypropylene) methylpolysiloxane polymer] polyoxy Examples of the ethylene / trifluoropropyl co-modified silicone (HLB = 4) polyether include polyethylene glycol, polypropylene glycol, and polyoxyethylene / polyoxypropylene copolymer. HLB
Those having a value in the range of 1 to 6 are particularly preferred. If the HLB value exceeds 6, there is a problem that the W / O emulsifying property and sweat resistance are reduced. The above components are representative components, and include all polyether-modified silicones having an HLB other than the above components falling within 1 to 6.

Other than the above-mentioned polyether-modified silicones, all polyether-modified silicones having different structures having an HLB in the range of 1 to 6 are included.

A dextrin esterified with a fatty acid containing a linear fatty acid and a branched fatty acid and / or an unsaturated fatty acid is an ester compound of the dextrin and the fatty acid, and has an average dextrin sugar polymerization degree of 3 to 150 and a fatty acid having a carbon content of 3 to 150. A glucose unit comprising one or more linear fatty acids having 8 to 22 carbon atoms, branched fatty acids having 4 to 26 carbon atoms, unsaturated fatty acids having 6 to 30 carbon atoms, and linear saturated fatty acids having 6 or less carbon atoms; Dextrin fatty acid esters characterized in that the degree of substitution of fatty acids per unit is 1.0 to 3.0, for example, dextrin (palmitic acid / 2-ethylhexanoic acid) as a main one.
Ester Dextrin (palmitic acid / isostearic acid) ester Dextrin (stearic acid / isospalmic acid) ester Dextrin (myristic acid / isostearic acid) ester Dextrin (palmitic acid / stearic acid / 2-ethylhexanoic acid) ester Dextrin (stearic acid / olein) Acid) ester dextrin (palmitic acid / oleic acid) ester dextrin (myristic acid / oleic acid) ester and the like. The above-mentioned fatty acid-esterified dextrin containing a linear fatty acid and a branched fatty acid and / or an unsaturated fatty acid is typical, and includes all fatty acid-esterified dextrins. The water-in-oil emulsified cosmetic of the present invention contains the above-mentioned components as essential components. In addition to these essential components, oils, powders, humectants, ultraviolet absorbers, fragrances, coloring used in ordinary cosmetics are used. Ingredients, preservatives, extracted extracts (animals, plants), cosmetic ingredients, drugs, etc. can be incorporated within a range that does not impair the effects of the present invention.

[0013]

[0014]

[0015]

[0016]

[0017]

Example 1 Translucent lotion Glyceryl trioctanoate 33.0 Cetyl octoate 23.0 Liquid paraffin 13.0 Macadamian nut oil 5.0 Polyoxyethylene 1 hydrogenated castor oil 6.0 Glyceryl isostearate 7.0 Purification Water 13.0

Example 2 Emulsion A Squalane 2.0 Isocetyl stearate 4.0 Glyceryl triisostearate 10.0 Octamethylcyclotetrasiloxane 7.0 Decamethylcyclopentasiloxane 7.0 Polyoxyethylene hydrogenated castor oil (60E , O) 2.0 glyceryl monoisostearate 2.0 glycerin 3.0 magnesium sulfate 0.5 methyl parahydroxybenzoate 0.2 purified water 62.3

Example 3 Emulsion B Di-2-ethylhexyl succinate 20.0 Octamethylcyclotetrasiloxane 10.0 Decamethylcyclopentasiloxane 7.0 Polyoxyethylene hydrogenated castor oil (60E, O) 1.5 Isostearin Acid monoglyceride 1.5 Polyoxyalkylene-modified organopolysiloxane 1.0 Purified water 59.0

Example 4 Ground Emulsion Squalane 1.5 Isocetyl Stearate 3.0 Jojoba Oil 10.0 Octamethylcyclotetrasiloxane 5.0 Decamethylcyclopentasiloxane 5.0 Polyoxyethylene hydrogenated castor oil (60E, O 1.0) Monoglyceride isostearic acid 1.0 Cetyl dimethicone copolyol / polyglyceryl-4 isostearate / hexyl laurate 0.5 Magnesium sulfate 0.5 Purified water 69.50

Example 5 Sunscreen Emulsion Dextrin (palmitic acid / 2-ethyl 0.8 hexanoic acid) ester Di-2-ethylhexyl succinate 18.0 Silicone-treated fine-particle titanium oxide 4.0 Octamethylcyclotetrasiloxane 9.0 Decamethylcyclopentasiloxane 6.0 2-Ethylhexyl methoxycinnamate 4.0 Polyoxyethylene hydrogenated castor oil (60E, O) 1.5 Monoglyceride isostearate 2.0 Cetyl dimethicone copolyol / isostearic acid Polyglyceryl-4 / laurin Hexyl acid 1.5 Magnesium sulfate 0.5 Xanthan gum 0.3 Methyl paraoxybenzoate 0.2 Glycerin 1.0 Purified water 52.8

[0023]

The present invention has excellent fluidity, stability over time, moisturizing properties, and long-lasting makeup, and does not disturb the physiological functions of the skin (does not impose a burden on the skin, and has excellent functions (water resistance, protective effect), It is possible to provide a water-in-oil type emulsified cosmetic which is extremely excellent in usability (elongation at the time of application, freshness during use, gentle skin touch, freshness after use), safety (low irritation). .

Claims (4)

[Claims] 1. The following components (a) and (b): (a) POE hydrogenated castor oil and / or POE castor oil 0.05 to 5.0% by weight of polyoxyethylene sorbite tetraoleate (b) glycerin branch Fatty acid and / or unsaturated fatty acid ester, sorbitan branched fatty acid and / or unsaturated fatty acid ester, 0.1 to 5.0% by weight 2. A water-in-oil type emulsified cosmetic containing 0.05 to 5.0% by weight of a water-soluble polymer electrolyte and / or an electrolyte. 3. A water-in-oil type cosmetic containing the polyether-modified silicone in an amount of 0.05 to 10.0% by weight. 4. An oil containing 0.1 to 20.0% by weight of a fatty acid esterified dextrin containing a linear fatty acid, a branched fatty acid and / or an unsaturated fatty acid in an amount of 0.1 to 20.0% by weight. Medium-water emulsion cosmetics