JP2013095711A - Oil-in-water emulsion cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil-in-water emulsion cosmetic capable of suppressing gelling over time, has a smooth feel upon use, is free from stickiness and is capable of giving an impression of fitting well to the skin upon use.SOLUTION: The oil-in-water emulsion cosmetic comprises a specific higher alcohol-modified siloxane compound, 16-22C higher alcohol, polar oil and phospholipid.

Description

  The present invention relates to an oil-in-water emulsified cosmetic containing a specific higher alcohol-modified siloxane compound, a higher alcohol having 16 to 22 carbon atoms, a polar oil, and a phospholipid, and more specifically, suppresses gelation with time and is smooth. The present invention relates to an oil-in-water emulsified cosmetic that has a good feeling of use and is not sticky and has excellent skin familiarity.

  Phospholipids are known as constituents of biological membranes, are natural surfactants with a high moisturizing effect and good affinity for skin, and are used as emulsifiers in oil-in-water emulsified cosmetics. However, in general, since phospholipids have weak emulsifying power, many studies have been made to improve stability over time. For example, there is a technique for improving emulsification stability by using a higher alcohol and glycerin together. (For example, see Patent Document 1)

  On the other hand, emulsified cosmetics may contain polar oils as an active ingredient for the skin and for the purpose of suppressing stickiness and improving elongation on the skin, but polar oils affect the stability of the emulsion. Therefore, many studies have been conducted on the stable blending of polar oils. For example, there is a technique for improving emulsification stability by using a higher alcohol, a polar oil, and a long-chain acyl sulfonate anionic surfactant in combination. (For example, see Patent Document 2)

JP-A-5-4912 JP 2008-44866 A

  However, as in Patent Document 1, a phospholipid as an emulsifier, a higher alcohol and glycerin as an emulsification aid, and a cosmetic emulsified with a polar oil, the higher alcohol is precipitated over time, and the cosmetic is gelled and thickened. As a result, the usability may be significantly deteriorated. Moreover, although the technique of patent document 2 is a thing with high temporal stability, it was inferior to the affinity to skin and a moisturizing effect.

  Thus, compared to surfactants widely used in cosmetics, phospholipids have poor emulsifying power, and therefore, when polar oils are emulsified, the stability over time is inferior, and higher alcohols are used as an emulsifying aid. Even when combined, the higher alcohol is precipitated in the aqueous phase from the emulsifying interface, and the thickening may proceed by forming a gel with a part of the higher alcohol. In some cases, there was a problem in usability such as a smooth feel when the coating material was applied. In the present invention, in an oil-in-water emulsified cosmetic using a phospholipid as an emulsifier and combining a higher alcohol and a polar oil, the oil-in-water emulsified cosmetic excellent in smooth feel is developed by suppressing gelation over time. This is the issue.

  In such a situation, the present inventor has conducted extensive research to solve the above problems, and as a result, in order to suppress precipitation of higher alcohols in the phospholipid emulsion system, the present inventors have high affinity with higher alcohols, and polarities. Combining a specific higher alcohol-modified siloxane compound with high affinity with oil allows the specific higher alcohol-modified siloxane compound to function as a bridge between the higher alcohol and the polar oil, thereby suppressing the precipitation of the higher alcohol from the emulsified droplets. Thus, it was found that gelation with time was suppressed. In addition, the siloxane portion of a specific higher alcohol-modified siloxane compound has a three-dimensional structure because it is branched with respect to the higher alcohol, and the specific higher alcohol-modified siloxane compound has a phospholipid structure. It becomes difficult to come out from the emulsified droplets, and further, precipitation of the higher alcohol having a high affinity with the specific higher alcohol-modified siloxane compound is suppressed. This combination suppresses the precipitation of higher alcohols even in phospholipid emulsified systems, suppresses gelation over time, has a smooth feeling of use, and is non-sticky and excellent in skin familiarity. The present invention was completed.

That is, the present invention
Next components (A) to (D)
(A) Higher alcohol-modified siloxane compound represented by the following general formula (1)
(B) It relates to an oil-in-water emulsified cosmetic containing a higher alcohol having 16 to 22 carbon atoms (C) polar oil (D) phospholipid.

  The present invention relates to an oil-in-water emulsified cosmetic that suppresses gelation with time, has a smooth feeling of use, and can provide a feeling of use that is not sticky and has an excellent skin familiarity.

Hereinafter, the present invention will be described in detail.
In the present specification, “to” is used to mean that the numerical values described before and after it are included as a lower limit value and an upper limit value.
The component (A) higher alcohol-modified siloxane compound used in the present invention is represented by the following general formula (1), and the property of the component (A) is preferably liquid at 25 ° C. The higher alcohol portion has a monovalent higher alcoholic hydroxyl group at a terminal different from the terminal bonded to the silicon atom, and does not have a plurality of hydroxyl groups such as polyhydric alcohol or sugar. That is, it is a structure represented by-(CH2) n-OH (wherein n is 10 to 30), preferably n is 10 to 18, particularly preferably 10 to 15. If n is less than 10, the effect of suppressing gelation may be obtained. Moreover, it is preferable in terms of touch that R ₁ in the following general formula (1) is a methyl group.

  The method for producing the component (A) higher alcohol-modified siloxane compound used in the present invention is not particularly limited. For example, it is represented by the following general formula (2) in the presence of a hydrosilylation reaction catalyst. By subjecting an unsaturated higher alcohol and an organohydrogentrisiloxane represented by the following general formula (3) to an addition reaction in an amount of 1 mole equivalent or more with respect to silicon-bonded hydrogen atoms in the organohydrogensiloxane. Can be obtained.

The hydrosilylation reaction is preferably performed in the presence of a catalyst. Examples of the catalyst include platinum, ruthenium, palladium, rhodium, iridium, osmium, and the like, and platinum compounds are particularly preferred because of their high catalytic activity. It is valid. Examples of platinum compounds include chloroplatinic acid, platinum metal, platinum complexes such as platinum-vinylsiloxane complexes, platinum-phosphine complexes, platinum-phosphite complexes, platinum alcoholate catalysts, and the like. When using a platinum catalyst, the amount of the catalyst used is about 0.5 to 1000 ppm as metallic platinum.

  Furthermore, the component (A) higher alcohol-modified siloxane compound used in the present invention may be subjected to a hydrogenation treatment for the purpose of improving odor due to the residual unsaturated compound after the reaction. As the non-bromide process by hydrogenation, there are a method of pressurizing hydrogen gas and a method of using a hydrogen additive such as a metal hydride, and the hydrogenation reaction includes a homogeneous reaction and a heterogeneous reaction. These processes may be performed alone or in combination. However, considering the advantage that the used catalyst does not remain in the product, the heterogeneous catalytic hydrogenation reaction using a solid catalyst is most preferable. In addition, as a pre-process or post-process of the non-bromide treatment, it is preferable to perform a stripping process in which light substances are distilled off by contacting nitrogen gas under reduced pressure.

  Component (A) Higher alcohol-modified siloxane compound is contained in the oil-in-water emulsified cosmetic of the present invention in order to suppress the gelation of the cosmetic over time and to obtain a cosmetic excellent in smooth feel. It is. It has the characteristics of light use feeling of silicone, smoothness without stickiness, high compatibility with polar oils derived from high polarity of higher alcohols, and orientation close to the oil phase at the emulsifying interface. It is possible to obtain an oil-in-water emulsified cosmetic that suppresses precipitation of the higher alcohol coexisting with the aqueous phase and suppresses gelation with time.

  Although content of the component (A) used for this invention is not specifically limited, 0.01-5 mass% (Hereinafter, "mass%" is abbreviated as "%".) Is preferable. If it is this range, the oil-in-water type emulsified cosmetics excellent in suppression of gelatinization with time can be obtained.

  The higher alcohol having 16 to 22 carbon atoms of the component (B) used in the present invention is contained as an emulsification aid that stabilizes the interface of the oil-in-water emulsified cosmetic, and may be a higher alcohol used in ordinary cosmetics. If it does not specifically limit. Such component (B) is solid at 25 ° C. When the carbon number is less than 16, it does not function sufficiently as an emulsification aid, and when the carbon number is greater than 22, it is not preferable in terms of the feeling during use. Specific examples of such component (B) include cetyl alcohol, stearyl alcohol, cetostearyl alcohol, behenyl alcohol, and the like, and one or more of these can be used. Among these, when any one of behenyl alcohol, stearyl alcohol, and cetyl alcohol is selected, an oil-in-water emulsified cosmetic with excellent smooth use feeling and particularly good temporal stability can be obtained.

  Although content of the component (B) used for this invention is not specifically limited, 0.1 to 5% is preferable. If it is this range, the oil-in-water type emulsified cosmetics excellent in the gelatinization suppression with time can be obtained.

  Moreover, it is preferable that the content mass ratio (B) / (A) = 10-1 of a component (A) and a component (B). Within this range, gelation over time can be suppressed, and an oil-in-water emulsified cosmetic with a smooth feeling of use can be obtained.

  The polar oil of component (C) used in the present invention is an oil agent having an ester skeleton, and is contained in the oil-in-water emulsified cosmetic of the present invention to impart non-stickiness and good skin familiarity. It is not particularly limited as long as it is a polar oil used in cosmetics. For example, tri (capryl / capric acid) glyceryl, (caprylic acid / capric acid / coconut oil fatty acid) glyceryl, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, diglyceryl triisostearate, glyceryl triisopalmitate, tricapryl Glyceryl acid, cetyl isooctanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, glyceryl trioctanoate, polyglyceryl diisostearate, diglyceryl triisostearate, glyceryl tribehenate, pentaerythritol ester of rosin acid, neopentyl dioctanoate Glycol, cholesterol fatty acid ester, N-lauroyl-L-glutamate di (cholesteryl behenyl octyldodecyl), Cetyl sooctanoate, hexyl laurate, isopropyl isostearate, isopropyl isopalmitate, diisopropyl adipate, diethyl sebacate, isononyl isononanoate, succinate diester, stearic acid hardened castor oil, jojoba oil, cetyl 2-ethylhexanoate, phytosterol fatty acid Examples thereof include esters, diisostearyl malate, and the like, and these can be used alone or in combination of two or more. Among them, tri (capryl / capric acid) glyceryl, (caprylic acid / capric acid / Preferable examples include triglycerides such as coconut oil fatty acid) glyceryl, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, glyceryl triisopalmitate, glyceryl tricaprylate.

  The phospholipid of component (D) used in the present invention is contained as an emulsifier in the oil-in-water emulsion cosmetic of the present invention, and is not particularly limited as long as it is normally used in cosmetics. Specifically, soybean-derived phospholipid, soybean-derived hydrogenated phospholipid, soybean-derived lysophospholipid, soybean-derived hydrogenated lysophospholipid, egg yolk-derived phospholipid, egg yolk-derived hydrogenated phospholipid, egg yolk-derived lysophospholipid, egg yolk-derived hydrogen Examples thereof include added lysophospholipids, and one or more of these can be used.

  Although content of the component (D) used for this invention is not specifically limited, 0.005 to 10% is preferable and 0.5 to 5% is more preferable. When the content of the component (D) is within this range, an oil-in-water emulsified cosmetic having excellent temporal stability can be obtained.

  Further, the viscosity of the oil-in-water emulsified cosmetic of the present invention is not particularly limited. However, when the viscosity at 15 ° C. is 5,000 to 100,000 mPa · s, in a conventional phospholipid emulsification system, higher alcohol and polar oil This is preferable because the effect of suppressing gelation, which was remarkable when coexisting with each other, is more exhibited. Viscosity is measured using a B-type viscometer, Model: VDA2, manufactured by Shibaura System Co., Ltd., using a No. 4 rotor under the conditions of 6 rotations / 60 seconds according to the cosmetic material standard general test method.

  In addition to the components (A) to (D), the oil-in-water emulsified cosmetic of the present invention includes components usually used in cosmetics, hydrocarbon oils, silicone oils, oil-soluble resins, inorganic pigments, and organic pigments. And powders such as pigments and their silicone-treated products and fluorine compound-treated products, surfactants, fibers, polyhydric alcohols, water-soluble polymers, water-soluble film-forming resins, humectants and other aqueous components, sugars, ultraviolet rays Absorbers, anti-fading agents, antioxidants, pH adjusters, chelating agents, antifoaming agents, cosmetic ingredients, preservatives, fragrances and the like can be contained within a range that does not hinder the effects of the present invention.

  Oily components include hydrocarbons, fatty acids, silicones, regardless of the properties of solid oils, semi-solid oils, liquid oils, volatile oils, etc. Oils, fluorine-based oils and the like can be mentioned. Other oil components include hydrocarbons such as liquid paraffin, squalane, petrolatum, polybutene, fatty acids such as stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid, dimethylpolysiloxane, methylphenylpoly Siloxane, Decamethylcyclopentasiloxane, Octamethylcyclotetrasiloxane, Trimethylsiloxysilicic acid, High polymerization degree methylphenyl polysiloxane, Cross-linked polyether modified methylpolysiloxane, Oleyl modified organopolysiloxane, Behenyl modified organopolysiloxane, High polymerization Silicones such as dimethylpolysiloxane, alkoxy-modified organopolysiloxane, fluorine-modified organopolysiloxane, perfluorodecane, perfluorooctane, perfluoropoly Fluorine-based oil such as ether, and the like, these can be used alone or in combination.

  As a powder component, if it is a powder used as a powder generally used in cosmetics, a spherical shape, a plate shape, a needle-like shape, a haze shape, a fine particle, a particle size such as a pigment class, a porous material, It is not particularly limited by the particle structure such as non-porous, and examples thereof include inorganic powders, glitter powders, organic powders, pigment powders, metal powders, and composite powders. Specifically, white inorganic pigments such as titanium oxide, zinc oxide, cerium oxide, barium sulfate, iron oxide, carbon black, titanium / titanium oxide sintered product, chromium oxide, chromium hydroxide, bitumen, ultramarine blue, etc. Colored inorganic pigments, talc, muscovite, phlogopite, saucite, biotite, synthetic mica, sericite (sericite), synthetic sericite, kaolin, silicon carbide, bentonite, smectite, silicic anhydride, aluminum oxide, magnesium oxide White body powders such as zirconium oxide, antimony oxide, diatomaceous earth, aluminum silicate, magnesium aluminum silicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride, Titanium oxide coated mica, titanium oxide coated bismuth oxychloride Iron oxide mica titanium, bituminized mica titanium, carmine-treated mica titanium, bismuth oxychloride, fish scale foil, polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder, etc. Bright powder, polyamide resin, polyethylene resin, polyacrylic resin, polyester resin, fluorine resin, cellulose resin, polystyrene resin, copolymer resin such as styrene-acrylic copolymer resin, polypropylene resin, urethane Organic polymer resin powders such as resins, organic low molecular weight powders such as zinc stearate and N-acyl lysine, natural organic powders such as silk powder and cellulose powder, red 201, red 202 and red 205 Red No. 226, Red No. 228, Orange No. 203, Orange No. 204, Blue No. 404, Yellow No. 401, Red No. 3, Red No. 104, Red No. 106, Orange No. 205, Yellow No. 4, Yellow No. 5, Organic pigment powders such as zirconium, barium or aluminum lakes such as green No. 3 and blue No. 1, or metal powders such as aluminum powder, gold powder and silver powder, fine titanium oxide coated mica titanium, fine zinc oxide coated mica titanium, sulfuric acid Examples include composite powders such as barium-coated mica titanium, titanium oxide-containing silicon dioxide, and zinc oxide-containing silicon dioxide, and fibers such as nylon, polyester, rayon, and cellulose. These may be surface-treated with a fluorine compound, silicone oil, powder, oil agent, gelling agent, emulsion polymer, surfactant or the like. These powders can be used singly or in combination of two or more, and may be further combined.

  As the surfactant, any surfactant that is generally used in cosmetics can be used. Nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, etc. Is mentioned.

  The aqueous component may be any component that is soluble in water. In addition to water, for example, propylene glycol, 1,3-butylene glycol, dipropylene glycol, glycerin, diglycerin, polyglycerin, aloe vera, witch. Examples include plant extracts such as hazel, hamamelis, cucumber, lemon, lavender, and rose water.

  Examples of the ultraviolet absorber include benzophenone, paraaminobenzoic acid, cinnamic acid, salicylic acid, 4-tert-butyl-4'-methoxydibenzoylmethane, oxybenzone, and the like.

  Examples of the antioxidant include α-tocopherol and ascorbic acid, examples of the cosmetic component include vitamins, anti-inflammatory agents, herbal medicines, and examples of the preservative include paraoxybenzoic acid ester, phenoxyethanol, and 1,2-pentadiol. Can be mentioned.

  The oil-in-water emulsified cosmetic of the present invention is produced by a conventional method. For example, an aqueous phase composed of an aqueous component and an oil phase composed of an oil component are heated and mixed, and then emulsified, and a polymer, a fragrance and the like are added as appropriate.

  The oil-in-water emulsified cosmetic of the present invention can be exemplified by skin care cosmetics such as skin lotions, emulsions, creams, serums, massages, packs, hand creams, body creams, etc. As the shape, various forms such as liquid, gel, emulsion, cream, and solid can be selected. Moreover, as the usage method, a method of taking an appropriate amount in a normal hand, a method of using it by impregnating a nonwoven fabric or the like, and the like can be mentioned.

  The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.

Synthesis Examples 1 and 2, Comparative Synthesis Example
[Synthesis Example 1: Higher alcohol-modified siloxane compound (C11)]
A reactor equipped with a stirrer, a thermometer, a reflux tube and a dropping funnel was charged with 89.0 g of undecenyl alcohol and heated to 70 ° C. with stirring under a nitrogen stream. After adding 27 mg of platinum catalyst, 127.8 g of organohydrogentrisiloxane of the following general formula (4) was gradually added from the dropping funnel to start the reaction. After completion of the dropping, aging was performed for 1 hour, and it was confirmed by gas chromatography that the reaction was complete. After removing unreacted siloxane at 70 ° C. under reduced pressure, the mixture was heated to 150 ° C. to undergo internal transition, or excess undecenyl alcohol was removed to obtain a higher alcohol-modified siloxane compound (C11). . This compound was liquid at 25 ° C.

[Synthesis Example 2: Higher alcohol-modified siloxane compound (C15)]
A reactor equipped with a stirrer, a thermometer, a reflux tube, and a dropping funnel was charged with 93.2 g of pentadecenyl alcohol and heated to 70 ° C. with stirring under a nitrogen stream. After adding 27 mg of the platinum catalyst, 127.8 g of the organohydrogensiloxane of the general formula (4) was gradually added from the dropping funnel to start the reaction. After completion of the dropping, aging was performed for 1 hour, and it was confirmed by gas chromatography that the reaction was complete. After removing unreacted siloxane at 70 ° C. under reduced pressure, the mixture was heated to 150 ° C. to undergo internal transition, or excess pentadecenyl alcohol was removed to obtain a higher alcohol-modified siloxane compound (C15). It was. This compound was liquid at 25 ° C.

[Comparative synthesis example: higher alcohol-modified dimethylpolysiloxane compound (C11)]
A reactor equipped with a stirrer, a thermometer, a reflux tube, and a dropping funnel was charged with 50.0 g of methyl hydrogen polysiloxane of the following general formula (5) and heated to 70 ° C. with stirring under a nitrogen stream. 28.4 g of undecenyl alcohol and 19.6 mg of platinum catalyst were gradually added from the dropping funnel to start the reaction. After completion of the dropping, aging was performed at 100 ° C., and it was confirmed that the reaction was completed by confirming disappearance of Si—H by IR spectrum. The mixture was heated to 150 ° C. under reduced pressure to remove internal untransformed or excessive amount of undecenyl alcohol to obtain dimethylpolysiloxane-modified higher alcohol (C11). This compound was liquid at 25 ° C.

Examples 1 to 14 and Comparative Examples 1 to 8: Oil-in-water emulsions Oil-in-water emulsions were prepared according to the formulations shown in Tables 1 and 2 and the following production method. Evaluation was made on suppression of oxidization, (b) smooth feel, (c) no stickiness, and (d) good skin familiarity. The results are also shown in Tables 1 and 2. In addition, the viscosity in 15 degreeC of Examples 1-14 was in the range of 10,000-100,000 mPa * s.

* 1: Nikkor Resinol S-10 (Nikko Chemicals)
* 2: Cetostearyl alcohol (manufactured by Higher Alcohol Industry)
* 3: Higher alcohol-modified siloxane compound of Synthesis Example 1 (C11)
* 4: Higher alcohol-modified siloxane compound of Synthesis Example 2 (C15)
* 5: Higher alcohol-modified dimethylpolysiloxane compound (C11) of comparative synthesis example
* 6: KLEAROL (SONNEBORN)
* 7: Silicon KF-96 (100CS) (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 8: CARBOPOL980 (manufactured by LUBRIZOL ADVANCED MATERIALS)

(Production method)
A: Components (1) to (5) were heated and uniformly dissolved at 70 ° C.
B: Components (6) to (20) were heated and uniformly dissolved at 70 ° C.
C: A and B were mixed and emulsified. (3500 rpm, 5 minutes with Aji Disper)
D: Component (21) heated to 70 ° C. was added to C and mixed.
E: Components (22) and (23) were added to D, mixed and cooled to 50 ° C.
F: Components (24) and (25) were added to E and mixed, defoamed, and then filled into a container to obtain an oil-in-water emulsion.

(Evaluation method)
<Evaluation items>
(A) Inhibition of gelation with time The viscosity when each sample was allowed to stand at 15 ° C. for 24 hours was measured as the viscosity value on the next day (measured viscosity value A: measurement temperature 15 ° C.). On the other hand, a cycle of -20 ° C. and 15 ° C. every 24 hours was repeated three times (6 days in total), and the viscosity when allowed to stand at 15 ° C. for 24 hours was measured as a viscosity value after aging (viscosity measurement value B: Measurement temperature 15 ° C.). The increase rate (%) of the viscosity measurement value B from the viscosity measurement value A was evaluated based on the following criteria. Viscosity was measured using a B-type viscometer manufactured by Shibaura System Co., Ltd., Model: VDA2, using a No. 4 rotor under the conditions of 6 rotations / 60 seconds according to the cosmetic material standard general test method.
Viscosity increase rate (%) = (B / A) × 100
◎: Less than 110% ○: 110% or more and less than 130% △: 130% or more and less than 150% ×: 150% or more

<Evaluation items>
(B) Smooth feel (c) No stickiness (d) Good skin familiarity Each sample was used and tested by a panel of 20 cosmetic evaluation specialists. For each sample, a “smooth touch”, “ Each item of “no stickiness” and “good skin familiarity” was evaluated based on the following evaluation criteria, based on the following evaluation criteria. Furthermore, it judged with the following criteria from the average score of all the panels of the score.
<7-step absolute evaluation>
(Score): (Evaluation)
6: Very good 5: Good 4: Slightly good 3: Normal 2: Slightly bad 1: Poor 0: Very bad <4 step criteria>
◎: 5.5 points or more ○: 4.5 points or more and less than 5.5 points △: 2.5 points or more and less than 4.5 points ×: Less than 2.5 points

  As is clear from Tables 1 and 2, Examples 1 to 14 of the present invention are all satisfactory in terms of suppression of gelation over time, smooth touch, no stickiness, and good skin fit. It was a success. On the other hand, the comparative example 1 which does not contain a component (A) cannot suppress gelatinization with time, and is inferior to a smooth touch. In addition, Comparative Example 2 containing the higher alcohol-modified dimethylpolysiloxane compound of Comparative Synthesis Example instead of Component (A) has a low affinity with the higher alcohol and cannot precipitate the higher alcohol, and therefore gels with time. It was inferior to the smooth feel. Moreover, the comparative examples 3-5 which contained the other oil agent with a molecular weight close to a component (A) instead of a component (A) also cannot suppress gelatinization with time, and were inferior to a smooth touch. Further, Comparative Example 6 containing myristyl alcohol, which is a higher alcohol having 14 carbon atoms, instead of the component (B) had a weak effect as an emulsifying aid, and gelation and separation were observed over time. Comparative Example 7 containing lignoseryl alcohol, which is a higher alcohol having 24 carbon atoms, instead of component (B) had poor skin fit and was inferior in gelation inhibition over time. Further, Comparative Example 8 containing liquid paraffin, which is a nonpolar oil instead of the polar oil of component (C), was good in stability over time, but was inferior in non-stickiness and in skin familiarity.

Example 15: Oil-in-water lotion (component) (%)
1. Hydrogenated soybean phospholipid * 1 0.65
2. Cholesterol 0.15
3. Glycerin 4
4. 1,3-Butylene glycol 5
5. Sorbitan sesquioleate 0.1
6). Polyoxyethylene (10 mol) cholesteryl ether * 9 0.04
7). Glyceryl tri-2-ethylhexanoate 0.02
8). Cetostearyl alcohol * 2 0.02
9. Higher alcohol-modified siloxane compound * 3 0.01
10. Perfume 0.03
11. Purified water 15
12 Sodium lactate 50% aqueous solution 0.2
13. Polyethylene glycol 20000 0.3
14 Purified water residue 15.1,3-butylene glycol 6
16. Dipropylene glycol 5
17. Edetic acid disodium 0.05
18. Glycerin 2
19. Methylparaben 0.15
20. Ethanol 3
* 9: EMALEX CS-10 (Nippon Emulsion Co., Ltd.)

(Production method)
A: Components 1 to 3 are heated to 70 ° C. and mixed uniformly.
B: Components 4 to 10 are heated to 70 ° C. and mixed uniformly.
C: B is added to A and a gel is prepared at 70 ° C.
D: 11 heated to 70 ° C. is added to C and emulsified.
E: D is cooled to 35 ° C. and treated with a microfluidizer.
F: E was added to the uniformly dissolved components 12 to 20, and mixed uniformly to obtain an oil-in-water lotion.

  The oil-in-water lotion of Example 15 was an oil-in-water lotion with excellent gelation over time, smooth feel, no stickiness, and good skin fit. The viscosity at 15 ° C. was 500 mPa · s.

Example 16: Oil-in-water cream (ingredient) (%)
1. Hydrogenated egg yolk phospholipid * 10 5
2. Stearic acid 1
3. Behenyl alcohol 3
4). Vaseline 1.5
5. Tri (capryl / capric acid) glyceryl 10
6). Liquid paraffin * 6 5
7). Dimethylpolysiloxane * 11 2
8). Phytosterol 1.5
9. Higher alcohol-modified siloxane compound (* 3) 5
10.1,3-butylene glycol 10
11. Glycerin 10
12 Sodium lactate 2
13. Xanthan gum 0.4
14 Triethanolamine 0.5
15. Methylparaben 0.15
16. Fragrance 0.05
17. Purified water balance * 10: Egg yolk lecithin PL-100P (manufactured by Kewpie)
* 11: Silicon KF-96 (10CS) (Shin-Etsu Chemical Co., Ltd.)

(Production method)
A: Components 1 to 9 are heated to 70 ° C. and mixed uniformly.
B: Components 10 to 15 and 17 are heated to 70 ° C. and mixed uniformly.
C: B is added to A and emulsified and mixed at 70 ° C.
D: C was cooled to room temperature, and component 16 was added and mixed to obtain an oil-in-water cream.

  The oil-in-water cream of Example 16 was an oil-in-water cream excellent in suppression of gelation with time, smooth feel, no stickiness, and good skin fit. Moreover, the viscosity in 15 degreeC was in the range of 50,000-100,000 mPa * s.

Example 17: Sheet-like oil-in-water cosmetics 20 g of the oil-in-water emulsion of Example 1 is applied to a non-woven sheet (cotton (100%) manufactured by Sansho Paper Industry Co., Ltd., density 50 g / m ² , length 20 cm × width 20 cm). The sheet-like oil-in-water cosmetic was obtained by impregnating and hermetically wrapping in a package made of a PET film.
The sheet-like oil-in-water cosmetic of Example 17 was excellent in smooth touch, no stickiness, and good skin fit.

Example 18: Oil-in-water makeup base (component) (%)
1. Hydrogenated soybean phospholipid / cholesterol mixture * 12 1.5
2. Hydrogenated soybean lysophospholipid * 13 0.2
3. Polyoxyethylene (10 mol) cholesteryl ether * 9 0.2
4). Cholesteryl hydroxystearate 1
5. Cetyl alcohol 0.1
6). Behenyl alcohol 0.4
7). Methylparaben 0.15
8). Glycerin 5
9. 1,3-butylene glycol 10
10. Fine particle titanium oxide dispersion paste (* 14) 5
11. Glyceryl tri-2-ethylhexanoate 5
12 Higher alcohol-modified siloxane compound (* 3) 0.5
13. 2-Ethylhexyl paramethoxycinnamate 5
14 Sodium hydroxide 0.03
15. Purified water residue 16. Acrylic acid / alkyl methacrylate copolymer * 15 0.1
17. Xanthan gum 0.1
18. Purified water 14.8
19. Ethanol 3
20. Fragrance 0.1
21. Caramel 0.01
* 12: Basis CL-20 (Nisshin Oilio Co., Ltd.)
* 13: LP70H (Nippon Seika Co., Ltd.)
* 14: Cosmeserve WP-UF (V) (Iwase Cosfa)
* 15: CARBOPOL 1382 (manufactured by LUBRIZOL ADVANCED MATERIALS)

(Production method)
A: Components 12 and 13 are added to components 10 and 11, mixed uniformly, and heated to 70 ° C.
B: A is added to components 1 to 9 which were uniformly mixed and heated to 70 ° C. to adjust the gel.
C: Components 14 and 15 are added to B and emulsified at 70 ° C.
D: C is cooled to 60 ° C. and components 16 to 18 are added and mixed uniformly.
E: D was cooled to room temperature, and components 19 to 21 were added and mixed to obtain an oil-in-water cosmetic base.

  The oil-in-water cosmetic base of Example 18 was an oil-in-water cosmetic base that was excellent in gelation over time, smooth feel, non-stickiness, and good skin fit. The viscosity at 15 ° C. was 15,000 mPa · s.

Claims (6)

The following components (A) to (D);
(A) Higher alcohol-modified siloxane compound represented by the following general formula (1)
(B) An oil-in-water emulsified cosmetic comprising a higher alcohol having 16 to 22 carbon atoms (C) a polar oil (D) phospholipid.   The oil-in-water emulsified cosmetic according to claim 1, wherein R2 in the general formula (1) has 10 to 18 carbon atoms.   The oil-in-water emulsified cosmetic according to claim 1 or 2, wherein the component (C) is a triglyceride that is liquid at 25 ° C.   Content of the said component (B) is 0.1-5 mass%, The oil-in-water type emulsified cosmetics of Claims 1-3 characterized by the above-mentioned.   The oil-in-water emulsified cosmetic according to claim 1, wherein the content ratio (B) / (A) of the component (A) and the component (B) is 10-1.   The oil-in-water emulsified cosmetic according to claim 1, wherein the viscosity at 15 ° C. is 5,000 to 100,000 mPa · s.