JP2013103895A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology that recovers a skin surface with desquamation or the like and favorably adheres to and follows the skin, and improves cosmetic durability, even when the skin is rough due to desquamation or the like.SOLUTION: The cosmetics contains: (A) an organopolysiloxane having a specific structure; (B) a crosslinking type methylpolysiloxane having a specific structure; (C-1) plate-like powder; (C-2) spherical powder; and water.

Description

  The present invention relates to cosmetics, and more particularly to makeup cosmetics.

As a technique for making the unevenness of the skin inconspicuous using a cosmetic, there is one described in Patent Document 1 (Japanese Patent Laid-Open No. 2001-2530). This document describes a cosmetic using a spherical powder, a film-forming agent, and an oil agent having a specific size. In this cosmetic, the surface roughness of the coating film is set within a specific range. Yes. A polysiloxane elastomer is used as the film forming agent.
And by the structure described in the document, light scattering occurs on the surface of the coating film by arranging the spherical powder together with the film forming agent on the skin and coating the skin with a film with appropriate unevenness. It is said that the unevenness of the skin becomes difficult to see by scattering light efficiently. In addition, it is said that a cosmetic material that has good adhesion and stretch on the skin, has a natural finish, has a long-lasting effect, and has a good feeling of use.

  Further, as a technique for improving the foundation warp, there is one described in Patent Document 2 (Japanese Patent Laid-Open No. 2009-40699). This document describes a makeup base using a combination of a silicone polymer having rubber elasticity and a specific oil.

In addition, there are other techniques described in Patent Documents 3 to 5 as techniques for blending silicone polymers in cosmetics.
Patent Document 3 (Japanese Patent Application Laid-Open No. 2008-143821) describes an emulsified cosmetic using a combination of a specific silicone polymer or amino-modified silicone, a specific nonionic water-soluble polymer and an oil component. .

  Patent Document 4 (Japanese Patent Laid-Open No. 2010-184912) discloses a cross-linked methylpolysiloxane (dimethicone / vinyl dimethicone) crosspolymer, a polyethylene glycol having a specific molecular weight, and a plurality of hydrophobic powders having a specific shape. And a water-in-oil emulsified cosmetic using a combination of a low-viscosity silicone oil.

  Patent Document 5 (Japanese Patent Laid-Open No. 10-95705) describes a water-in-oil (W / O) emulsion composition using a combination of a specific organopolysiloxane, silicone oil and lower alcohol.

JP 2001-2530 A JP 2009-40699 A JP 2008-143821 A JP 2010-184912 A JP-A-10-95705

According to the techniques described in Patent Documents 1 and 2, a predetermined effect can be obtained with respect to the improvement of the sticking, stretching or twisting of the cosmetic on the skin having wrinkles, fine lines or pores. Further, according to the techniques described in Patent Documents 3, 4, and 5, predetermined effects can be obtained with respect to storage stability, powderiness, no color unevenness, and improvement in non-sticky feeling of use.
On the other hand, when there is rough skin such as desquamation due to drying, there is still room for improvement even if the above technique is used from the viewpoint of keeping close contact with the skin suitably and improving makeup paste and maintaining makeup.

  The present invention provides a technique for repairing a skin surface such as desquamation and appropriately following the skin and improving makeup paste and makeup even when the skin is rough due to desquamation or the like.

According to the invention, the following components (A), (B), (C):
(A) organopolysiloxane,
(B) cross-linked methylpolysiloxane,
(C) powder,
And contains water
The component (A) is a polysiloxane composed of a repeating unit represented by the following general formula (1) via an alkylene group containing a hetero atom on at least two silicon atoms of the organopolysiloxane segment constituting the main chain. (N-acylalkylenimine) segments are combined,

(In the general formula (1), R ⁶ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group or an aryl group, and n represents 2 or 3.)
The number average molecular weight of the poly (N-acylalkylenimine) segment is 5.0 × 10 ^{2 to} 1.8 × 10 ³ ,
The mass ratio (a / b) of the organopolysiloxane segment (a) constituting the main chain to the poly (N-acylalkylenimine) segment (b) is 83/17 to 94/6,
The organopolysiloxane having a weight average molecular weight of 1 × 10 ^{4 to} 3 × 10 ⁵ of the organopolysiloxane segment constituting the main chain,
The component (B) is a (dimethicone / vinyl dimethicone) crosspolymer,
A cosmetic is provided wherein the component (C) comprises (C-1) a plate-like powder and (C-2) a spherical powder of an organic synthetic polymer.

  According to the present invention, even when the skin is rough due to desquamation or the like, it is possible to repair the skin surface such as desquamation and to closely adhere to the skin and improve makeup paste and makeup, It is possible to obtain a cosmetic that enhances the covering power of the cosmetic and brightens the skin.

It is a figure which shows the evaluation result of the cosmetics in an Example. It is a figure which shows the evaluation result of the cosmetics in an Example. It is a figure which shows the evaluation result of the cosmetics in an Example.

The cosmetic of the present invention includes the following components (A) to (C) and water, and specific components are used as the components (A) to (C), respectively:
(A) organopolysiloxane,
(B) cross-linked methylpolysiloxane,
(C) Powder.
Hereinafter, each component will be described with specific examples. Each component can be used alone or in combination of two or more.

(Ingredient (A))
Component (A) is an organopolysiloxane having a specific structure. That is, the component (A) is composed of a repeating unit represented by the following general formula (1) via an alkylene group containing a hetero atom on at least two silicon atoms of the organopolysiloxane segment constituting the main chain. It is a copolymer formed by bonding poly (N-acylalkylenimine) segments, and is a viscous liquid or a solid substance at room temperature and pressure.

(In the general formula (1), R ⁶ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group or an aryl group, and n represents 2 or 3.)

In this organopolysiloxane, the mass ratio (a / b) of the organopolysiloxane segment (a) constituting the main chain to the poly (N-acylalkylenimine) segment (b) is 83/17 to 94/6. It is. From the viewpoint of more effectively improving the balance between improving makeup paste and maintaining makeup, the mass ratio a / b is preferably 85/15 to 92/8, and more preferably 87/13 to 90/10.
The weight average molecular weight of the component (A) is 1 × 10 ⁴ or more, preferably 2 × 10 ⁴ or more, from the viewpoint of further improving the spread of the cosmetic and further enhancing the makeup paste. ⁴ or more is more preferable, and 6 × 10 ⁴ or more is even more preferable. In addition, from the viewpoint of improving the spread of the cosmetic material to further enhance the makeup paste, the weight average molecular weight of the component (A) is 5 × 10 ⁵ or less, and preferably 3 × 10 ⁵ or less.

In the present specification, the mass ratio (a / b) is determined by dissolving 5% by mass of the organopolysiloxane of the present invention in deuterated chloroform, and analyzing it by nuclear magnetic resonance ( ¹ H-NMR) analysis. The value calculated | required from the integral ratio of the alkyl group or phenyl group of this, and the methylene group in a poly (N-acyl alkylene imine) segment.

Among those represented by R ⁶ in the general formula (1), examples of the alkyl group having 1 to 22 carbon atoms include linear, branched or cyclic alkyl groups having 1 to 22 carbon atoms, Specifically, methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, pentyl, hexyl, cyclohexyl, heptyl, octyl, nonyl, decyl Group, undecyl group, dodecyl group, octadecyl group, nonadecyl group, eicosyl group, docosyl group and the like. Especially, a C1-C10 alkyl group is preferable and a C1-C6 alkyl group is more preferable.
Moreover, as an aralkyl group, a C7-19 aralkyl group is illustrated, for example, and specifically, a benzyl group, a phenethyl group, a trityl group, a naphthylmethyl group, an anthracenylmethyl group, etc. are illustrated. Among these, an aralkyl group having 7 to 15 carbon atoms is preferable.
Examples of the aryl group include aryl groups having 6 to 14 carbon atoms, specifically, phenyl group, tolyl group, xylyl group, naphthyl group, biphenyl group, anthryl group, phenanthryl group, and the like. Examples include a phenyl group, a naphthyl group, and an alkyl-substituted phenyl group.

  An alkylene group containing a hetero atom intervening in the bond between an organopolysiloxane segment and a poly (N-acylalkylenimine) segment is specifically obtained by 2-substituted oxazolines or 2-substituted oxazines, and poly ( N-acylalkylimine) functions as a linking group for the segment.

Examples of the alkylene group containing a hetero atom include a C 2-20 alkylene group containing 1 to 3 nitrogen atoms, oxygen atoms or sulfur atoms, and specific examples thereof include groups represented by the following formulae. It is done. In the following formula, X ⁻ represents an anion which is a counter ion of a quaternary ammonium salt, for example, ethyl sulfate ion, methyl sulfate ion, chlorine ion, iodine ion, sulfate ion, p-toluenesulfonate ion, perchlorine. An acid ion is illustrated.

In the component (A), the weight average molecular weight of the organopolysiloxane constituting the main chain is 1 × 10 ^{4 to} 3 × 10 ⁵ , but from the viewpoint of further improving the makeup paste by improving the spread of the cosmetics. Is preferably 2 × 10 ⁴ to 2 × 10 ⁵ , more preferably 5 × 10 ^{4 to} 1.5 × 10 ⁵ .

Since the organopolysiloxane constituting the main chain has a skeleton common to the modified organopolysiloxane that is the raw material compound, the weight average molecular weight of the organopolysiloxane constituting the main chain is approximately equal to the average molecular weight of the modified organopolysiloxane. Are the same.
Here, the weight average molecular weight of the modified organopolysiloxane is a weight average molecular weight in terms of polystyrene measured by GPC under the following conditions.
Column: Super HZ4000 + Super HZ2000 (manufactured by Tosoh Corporation)
Eluent: 1 mM triethylamine / THF
Flow rate: 0.35 mL / min
Column temperature: 40 ° C
Detector: UV
Sample: 50 μL

In the component (A), the number average molecular weight of the poly (N-acylalkylenimine) segment is calculated from the molecular weight of the N-acylalkyleneimine unit and the degree of polymerization, or the gel permeation chromatography (GPC) measurement. Although it can be measured by the method, in the present invention, it means the number average molecular weight measured by the GPC measurement method, and is 5.0 × 10 ^{2 to} 1.8 × 10 ³ . Moreover, Preferably it is 7.0 * 10 < ² > -1.5 * 10 < ³ >, More preferably, it is 8.0 * 10 < ² > -1.4 * 10 < ³ >.

The “poly (N-acylalkylenimine) segment” refers to W bonded to R ¹¹ in the following general formula (6).

In the general formula (6), each R ⁷ independently represents an alkyl group having 1 to 22 carbon atoms or a phenyl group, R ¹¹ represents an alkylene group containing a hetero atom, and W represents a poly (N-acylalkyleneimine). Represents a segment, R ¹² represents a residue of a polymerization initiator, and y represents a positive number.
In addition, the part enclosed with the broken line in the said General formula (6) is an organopolysiloxane segment between adjacent poly (N-acyl alkylene imine) segments. The “organopolysiloxane segment between adjacent poly (N-acylalkyleneimine) segments” means the bonding of the poly (N-acylalkylenimine) segment to the organopolysiloxane segment as shown in the general formula (6). A portion surrounded by a broken line between two points from a point (bonding point α) to a bonding point (bonding point β) of a poly (N-acylalkyleneimine) segment adjacent thereto, and one R ⁷ SiO A segment composed of a unit, one R ¹¹ , and y + 1 R ⁷ ₂ SiO units.

  Specific examples of the component (A) organopolysiloxane include poly (N-formylethyleneimine) modified silicone, poly (N-acetylethyleneimine) modified silicone, poly (N-propionylethyleneimine) modified silicone, poly (N- n-octanoylethyleneimine) modified silicone, poly (Nn-dodecanoylethyleneimine) modified silicone, poly (N-formylpropyleneimine) modified silicone, poly (N-acetylpropyleneimine) modified silicone, poly (N- Examples include propionylpropyleneimine) -modified silicone, poly (Nn-octanoylpropyleneimine) -modified silicone, and poly (Nn-dodecanoylpropyleneimine) -modified silicone.

  These organopolysiloxanes are, for example, known methods (JP-A-2-276824, JP-A-4-85334, JP-A-4-85335, JP-A-5-112423, JP-A-7-133352). Gazette or JP-A-10-95705).

The content of the component (A) in the cosmetic is, for example, preferably 0.1% by mass or more, more preferably 0.5% by mass or more, from the viewpoint of further enhancing the makeup paste. More preferably, it is at least mass%.
Further, from the viewpoint of further improving the balance between the makeup paste and the makeup paste, the content of the component (A) in the cosmetic can be, for example, 6% by mass or less, more preferably 5% by mass or less, and 4% by mass. % Or less is more preferable.

  Component (A) may be used in combination with alcohol in order to improve solubility or dispersibility. When the component (A) is blended in the cosmetic as an alcohol dispersion, the dissolved state of the polymer compound in the cosmetic becomes good, spreads more evenly on the skin surface, the effect of improving the spread and stickiness, and the effect of suppressing uneven coating Can be further enhanced.

  The alcohol used in combination with the component (A) is preferably a lower alcohol having 1 to 4 carbon atoms, and more preferably ethanol, from the viewpoints of solubility, dispersibility, and handling when blended into a cosmetic.

(Ingredient (B))
The crosslinked methylpolysiloxane of component (B) is a (dimethicone / vinyl dimethicone) crosspolymer (INCI name).

As component (B), KSG-15, KSG-16, KSG-1610 (manufactured by Shin-Etsu Chemical Co., Ltd.);
9546 Silicone Elastomer Blend (manufactured by Dow Corning Toray);
SFE-839 (manufactured by GE Silicones); SUNEL C7, SUNGEL CD20, SUNEL D20, SUNEL CP20, DC 1-9852 (manufactured by SUNJIN);
CHEMSIL K-61, CHEMSIL K-51 (manufactured by Thornley Company);
Commercial products such as Lotioncrafter EL51 and Lotioncrafter EL61 (manufactured by Lotioncrafter) can be used.
Among these, KSG-15 and KSG-16 are preferable in that they spread well on the skin and have good dispersion of the component (C) described later.

  Moreover, a component (B) can also be manufactured in accordance with a conventional method. For example, it can be produced by subjecting dimethoxydimethylsiloxane and vinyldimethylmethoxysiloxane to dealcohol condensation, followed by addition polymerization using a polymerization initiator such as azobisisobutyronitrile.

The content of the component (B) in the cosmetic is, for example, 0.1 mass from the viewpoint of further enhancing the familiarity and adhesion of the cosmetic to the skin to improve the makeup paste and the makeup, and making the skin appear brighter. % Or more, preferably 0.2% by mass or more, and more preferably 0.5% by mass or more.
Further, from the viewpoint of further improving the balance between the makeup paste and the makeup paste, the content of the component (B) in the cosmetic is preferably 7% by mass or less, more preferably 5% by mass or less, and more preferably 4% by mass. % Or less is more preferable.

By containing a component (A) and a component (B), even the skin roughened by desquamation etc. can repair the skin surfaces, such as desquamation, and can improve adhesiveness. The ratio of the component (A) to the component (B) ((A) / (B)) restores the skin surface such as desquamation and improves adhesion even on skin that is rough due to desquamation. From the viewpoint of improving the mochi, the mass ratio is preferably 0.02 or more, more preferably 0.1 or more, and further preferably 0.25 or more.
In addition, the above (A) / (B) can repair skin surface such as desquamation, improve the adhesiveness, and improve makeup paste and makeup feeling even in skin rough due to desquamation. For example, the mass ratio is preferably 50 or less, more preferably 20 or less, and still more preferably 8 or less.

(Ingredient (C))
Component (C) contains (C-1) plate-like powder and (C-2) spherical powder shown below as essential components.

(Component (C-1))
As the material of the plate-like powder used as the component (C-1), talc, silica, sericite, mica, glass, kaolin, bismuth oxychloride, cerium oxide, calcium sulfate, barium sulfate, magnesium sulfate, plate-like alumina Examples thereof include natural or synthetic inorganic powder such as powder. Moreover, the surface of these materials may be hydrophobized.
Of these, talc, silica, and glass surfaces that have been subjected to a hydrophobic treatment are preferred, and talc is more preferred because a smooth and unsmooth skin feel can be obtained.
Moreover, the composite powder which coat | covered the metal oxides, such as titanium dioxide, iron oxide, and anhydrous silicic acid, on the said plate-shaped powder surface can also be used. Specific examples of the composite powder include titanium oxide-coated mica, iron oxide-coated mica, Bengala-coated mica titanium, and iron oxide-coated glass powder.

The shape of the component (C-1) is not particularly limited, but those having an average thickness of about 0.001 to 5 μm and an average particle diameter of 0.01 to 50 μm are preferable, and further the average thickness Is more preferably 0.01 to 2 μm and an average particle size of 0.1 to 30 μm, and an average thickness of 0.01 to 1 μm and an average particle size of 1 to 30 μm is a squeaky feeling during coating. Furthermore, it is more preferable in that there is no powderiness.
In the present invention, the particle diameters of the component (C-1) and the component (C-2) can be measured with an electron microscope observation and a particle size distribution measuring device by a laser diffraction / scattering method. Specifically, in the case of the laser diffraction / scattering method, measurement is performed with a laser diffraction / scattering particle size distribution analyzer (for example, LA-920, manufactured by Horiba, Ltd.) using ethanol as a dispersion medium.

  In addition, as a method for hydrophobizing these powders, methods applied to ordinary cosmetic powders such as silicone treatment, fatty acid treatment, lauroyllysine treatment, surfactant treatment, metal soap treatment, fluorine Treatment, lecithin treatment and the like, among which silicone treatment, fatty acid treatment and fluorine treatment are preferred. Specifically, as the silicone treatment, for example, treatment with methylhydrogenpolysiloxane, methylpolysiloxane, trimethylsiloxysilicic acid, triethoxycaprylylsilane, silicone resin, etc .; as the fatty acid treatment, for example, myristic acid, stearin Treatment with acid or the like; Examples of the fluorine treatment include treatment with pearl fluoroalkyl phosphate ester, perfluoroalkyl silane and the like. The amount of the hydrophobizing agent used is usually 0.5 to 50% by mass, particularly 1 to 30% by mass, based on the mass of the powder before the treatment.

The content of the component (C-1) in the cosmetic is, for example, preferably 3% by mass or more and more preferably 5% by mass or more from the viewpoint of increasing the covering power of the cosmetic.
Moreover, while suppressing the nonuniformity at the time of application | coating of cosmetics, and nonuniformity of attachment, from a viewpoint of making the finish of the skin which apply | coated cosmetics more natural, content of the component (C-1) in cosmetics is made. For example, it is preferably 22% by mass or less, more preferably 20% or less, and further preferably 14% or less.

(Ingredient (C-2))
The organic synthetic polymer spherical powder of component (C-2) refers to a powder having a substantially spherical shape, and may be a spheroid, a spherical powder having irregularities on the surface, etc. You don't need to be.
The spherical powder of the component (C-2) is not particularly limited as long as it is used in ordinary cosmetics. For example, polyamide powder, nylon powder, polyester powder, polyethylene powder, polytetrafluoroethylene powder, Polypropylene powder, polystyrene powder, benzoguanamine powder, polymethylbenzoguanamine powder, polymethyl methacrylate powder, polyurethane powder, vinyl resin, fluororesin, acrylic resin, melamine resin; silicone elastomer powder and polymethylsilsesquioxane powder crosslinked with dimethyl silicone Silicone powder such as
Poly (meth) acrylic acid, such as butyl acrylate / vinyl acetate copolymer, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, (lauryl methacrylate / ethylene glycol dimethacrylate) copolymer, Cross-linked or non-crosslinked type such as powder of one or more kinds of polymers or copolymers selected from sodium poly (meth) acrylate, poly (meth) acrylic ester, poly (meth) acrylate alkylene glycol The organic spherical powder is mentioned.
The spherical powder may be a composite powder composed of a plurality of powders. For example, the spherical powder of (C-2) may be coated and encapsulated with colored pigments, white pigments, dyes, dyes, metal ions, etc. and colored.
In addition, the component (C-2) may be one in which the surface of the above-described material has been subjected to a hydrophobic treatment, and the hydrophobic treatment may be performed by the method described above in the description of the component (C-1). It is done.

  The average particle size (d50) of the component (C-2) is, for example, 0.1 to 50 μm, more preferably 0.5 to 30 μm, and particularly preferably 1 to 15 μm from the viewpoint of good spread and familiarity with the skin.

  The component (C-2) is selected from nylon powder, silicone powder, polyethylene powder, polymethyl methacrylate powder, acrylic acid, methacrylic acid, alkyl acrylate, alkyl methacrylate, alkylene glycol acrylate and alkylene glycol methacrylate. Preferred is a seed or two or more polymer or copolymer powders.

More specifically, as component (C-2), KMP-590, KSP-100, KSP-101, KSP-105, KSP-300 (manufactured by Shin-Etsu Chemical Co., Ltd.);
Tospearl 120A, Tospearl 145A, Tospearl 2000B, Tospearl 1110A (manufactured by Momentive Performance Materials Japan);
Trefill E506S, Trefill E508, EP-9215, BY29-129 (manufactured by Toray Dow Corning);
Polytrap (manufactured by Dow Corning);
Flow beads CL-2080, flow beads HE-3040, flow beads EA-209 (manufactured by Sumitomo Seika Co., Ltd.);
Olgasol (Arkema);
Matsumoto Microsphere M, Matsumoto Microsphere M-100, Matsumoto Microsphere M-101, Matsumoto Microsphere M-201, Matsumoto Microsphere M-306, Matsumoto Microsphere S-100 (Matsumoto Yushi Seiyaku Co., Ltd.) Manufactured);
Commercial products such as nylon SP-500, nylon SP-10, nylon SP-20 (manufactured by Toray Industries, Inc.) can be used.

  In particular, KMP-590 (manufactured by Shin-Etsu Chemical Co., Ltd.), a polymethylsilsesquioxane powder, Tospearl 120A, Tospearl 145A (manufactured by Momentive Performance Materials Japan), and Matsumoto Micros, a polymethyl methacrylate powder. The Fair series (manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) is preferable in that it has a good spread at the time of application and a finish that does not cause white floating.

The content of the component (C-2) in the cosmetic is preferably 0.5% by mass or more, for example, from the viewpoint of improving the familiarity with the skin at the time of application and making the skin appear brighter. Is more preferable.
In addition, from the viewpoint of more stably suppressing unevenness and unevenness of the cosmetic during application, the content of the component (C-2) in the cosmetic is preferably 8% by mass or less, for example, 5%. % Or less is more preferable.

The ratio ((C-1) / (C-2)) of the component (C-1) to the component (C-2) is preferably in close contact with the skin and can improve the makeup paste. The ratio is preferably 1 or more, more preferably 1.5 or more, and still more preferably 2 or more.
Further, from the viewpoint of suitably adhering to the skin and improving the makeup, the above (C-1) / (C-2) is preferably 30 or less, more preferably 15 or less, and even more preferably 6 or less in terms of mass ratio. .

The contents of the components (C-1) and (C-2) in the cosmetics increase the covering power of the cosmetics and, from the viewpoint of enhancing the makeup feeling by further exerting the effect of solidifying sebum (C -1) and (C-2), for example, preferably 5% by mass or more, more preferably 6% by mass or more, and even more preferably 7% by mass or more.
In addition, the components (C-1) and (C) in the cosmetics are further controlled from the viewpoint of more stably suppressing unevenness and sticking unevenness when applying the cosmetics and making the skin coated with the cosmetics more natural. -2) is the total of (C-1) and (C-2), for example, preferably 30% by mass or less, more preferably 25% by mass or less, and even more preferably 17% by mass or less.

The ratio of component (A) to the sum of components (C-1) and (C-2) ((A) / ((C-1) + (C-2))) is the case where the skin is rough. However, from the viewpoint of suitably adhering to the skin and improving makeup paste, the mass ratio is preferably 0.005 or more, more preferably 0.04 or more, and even more preferably 0.06 or more. .
Moreover, said (A) / ((C-1) + (C-2)) is a viewpoint which adheres suitably to skin and can improve makeup paste, even when the skin is rough. For example, the mass ratio is preferably 1 or less, more preferably 0.5 or less, and still more preferably 0.35 or less.

  In the present invention, water is preferably contained in the total composition of the cosmetic, for example, 1 to 80%, more preferably 10 to 70% from the viewpoint of finishing.

  Moreover, content of component (A)-(C) in the cosmetics of this invention is 0.1-6 mass% of content of component (A), respectively, and content of component (B) is 0.00. 1-7 mass% and content of a component (C) can be 5-30 mass%.

  The cosmetics of the present invention include components other than those described above, for example, surfactants, oily components, fragrances, moisturizers, cosmetic ingredients, medicinal ingredients, ultraviolet absorbers, thickeners, bactericides, pH adjusters, Antioxidants, preservatives, and other components used in ordinary cosmetics can also be included.

The cosmetic of the present invention can be produced by a usual method.
Further, the cosmetic of the present invention is specifically an emulsified cosmetic, and the cosmetic forms include skin care cosmetics such as emulsions and creams, foundations, makeup bases, concealers, lip balms, blushers, eye shadows. Makeup cosmetics such as mascara, and UV protection cosmetics such as sunscreen emulsions and sunscreen creams. Among them, makeup cosmetics such as foundations, makeup foundations, concealers, lip balms, blushers, eye shadows, mascaras and the like are suitable.

  In the cosmetic of the present invention, an oxazoline-modified organopolysiloxane having a specific structure (component (A)), a cross-linked methylpolysiloxane having a specific structure (component (B)), and a powder (component (C)) In combination with water and water, a plurality of types having different shapes are used in combination as component (C). Thereby, even when there is rough skin such as dryness and desquamation, it is possible to keep close contact with the skin suitably and improve the makeup paste and maintain the makeup.

Among these, in terms of makeup glue, the use of an oxazoline-modified organopolysiloxane having a specific structure as component (A) makes it possible to adhere to the skin uniformly while reducing the spread of the cosmetic. The spread of the material and the adhesion can be made good.
Further, by using a cross-linked methylpolysiloxane having a specific structure as the component (B), it is possible to improve the adhesion of the cosmetic to the skin and the familiarity with the skin.
Furthermore, by combining a plurality of powders having different shapes as the component (C), unevenness during application to the skin and unevenness of the cosmetic can be improved.
And by combining the above components (A) to (C), not only healthy skin, but also rough skin, it has good spread and adhesion, excellent skin fit and adhesion, and unevenness The cosmetics that don't have to be obtained.

  In addition, from the viewpoint of makeup, the combination of components (A) to (C) can be used to improve the balance of adhesion to skin, the ability to repel sebum, and the power to solidify sebum, It is possible to obtain a cosmetic material that is excellent not only for healthy skin but also for rough skin.

Furthermore, by using a combination of the above components (A) to (C) and water, it is possible to obtain a water-in-oil emulsified cosmetic with an excellent balance between the covering power and the natural finish. For example, makeup such as a foundation It can be suitably used as an up cosmetic.
Moreover, it becomes possible to raise the brightness of skin by using the above components (A) to (C) and water in combination.

  As mentioned above, although embodiment of this invention was described, these are illustrations of this invention and various structures other than the above are also employable.

(Synthesis Example 1) (Production of poly (N-propionylethyleneimine) -modified silicone)
3.76 g (0.024 mol) of diethyl sulfate and 65.3 g (0.66 mol) of 2-ethyl-2-oxazoline were dissolved in 140 g of dehydrated ethyl acetate and heated under reflux for 8 hours under a nitrogen atmosphere. Reactive poly (N-propionylethyleneimine) was synthesized. A 50% ethyl acetate solution of 500 g (0.024 mol in terms of amino group) of side chain primary aminopropyl-modified polydimethylsiloxane (molecular weight 100000, amine equivalent 20500) was added all at once and heated to reflux for 12 hours. The reaction mixture was concentrated under reduced pressure to obtain an N-propionylethyleneimine / dimethylsiloxane copolymer as a pale yellow rubber-like solid (537 g, yield 95%). The weight average molecular weight was 149000 (N-propionylethyleneimine content 12 mass%).

(Synthesis Example 2) (Synthesis of poly (N-propionylethyleneimine) -modified silicone)
According to Synthesis Example 7 of Patent Document 5 described above, poly (N-propionylethyleneimine) -modified silicone was synthesized by the following method.
Dissolve 2.36 g (0.0153 mol) of diethyl sulfate and 30.3 g (0.306 mol) of 2-ethyl-2-oxazoline in 43 mL of chloroform, and heat to reflux for 5 hours under a nitrogen atmosphere to obtain poly (N-propionyl). Ethyleneimine) terminal reactive polymer (molecular weight 2000) was synthesized. To this, a 270 ml chloroform solution of 100 g of tertiary amino-modified silicone synthesized according to Synthesis Example 6 of Patent Document 5 (0.0139 mol as amino group) was added in a lump and heated to reflux for 16 hours. The reaction mixture was concentrated under reduced pressure to obtain a graft copolymer (molecular weight 28900) having an N-propionylethyleneimine chain attached to polydimethylsiloxane represented by the following formula (N-propionylethyleneimine content 25% by mass). . This polymer was a pale yellow rubber-like solid (yield 129 g, yield 97%).

(Synthesis Example 3) (Synthesis of poly (N-propionylethyleneimine) -modified silicone)
According to Synthesis Example 8 of Patent Document 5 described above, poly (N-propionylethyleneimine) -modified silicone was synthesized by the following method.
3.55 g (0.0230 mol) of diethyl sulfate and 27.4 g (0.276 mol) of 2-ethyl-2-oxazoline were dissolved in 60 g of dehydrated ethyl acetate, heated under reflux for 4 hours under a nitrogen atmosphere, and poly (N -Propionylethyleneimine) terminal reactive polymer (molecular weight 1200) was synthesized. A 50% ethyl acetate solution of 400 g (0.0192 mol in terms of amino group) of side chain primary aminopropyl-modified polydimethylsiloxane (molecular weight 110000, amine equivalent 20800) was added all at once, and the mixture was heated to reflux for 8 hours. The reaction mixture was concentrated under reduced pressure to obtain a graft copolymer (molecular weight 115000) having an N-propionylethyleneimine chain attached to polydimethylsiloxane (N-propionylethyleneimine content 4 mass%). The copolymer was a pale yellow rubbery solid (yield 427 g, yield 99%).

(Examples 1-4 and Comparative Examples 1-4)
A W / O emulsified foundation having the composition shown in Table 1 was produced and evaluated for makeup paste, difficulty of unevenness, familiarity with skin, skin brightness, covering power, natural finish, and makeup using the methods described below. did. The results are also shown in Table 1.

(Production method)
After roughly mixing the powder components, the powder components were mixed and pulverized using an Admizer pulverizer (Fuji Paudal). The oil phase component was mixed, and the pulverized powder component was added and dispersed with a disper. Furthermore, the water phase component was mixed and added to the oil phase and powder mixture to emulsify. Thereafter, the viscosity was adjusted with a homomixer to obtain a W / O emulsified foundation.

In Table 1 and Example 5 described later, the following materials were used.
* 1: Poly (N-propionylethyleneimine) -modified silicone Obtained in Synthesis Example 1 * 2: Cross-linked silicone KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 3: Poly (N-propionylethyleneimine) modified silicone obtained in Synthesis Example 2 * 4: Poly (N-propionylethyleneimine) modified silicone obtained in Synthesis Example 3 * 5: Crosslinked polyether modified Silicone KSG-340 (Shin-Etsu Chemical Co., Ltd.)
* 6: 5% by mass surface treatment with diethanolamine perfluoroalkylethyl phosphate as fluorine treatment * 7: 5% by mass surface treatment with dimethicone (polydimethylsiloxane) as silicone treatment * 8: Spherical silicone resin powder Body Tospearl 145A (Momentive Performance Materials Japan)
* 9: Polyether-modified silicone SH3775M (manufactured by Dow Corning Toray)
* 10: Fluorine-modified silicone obtained according to the method described in JP-A-8-295612, Production Example 3

(Evaluation method)
(1) Finish:
"Mixing glue", "difficult to get rid of unevenness", "familiarity with skin", "brightness of skin", "cover" when five women with dry and rough skin actually use each cosmetic Specialist panelists performed sensory evaluations of “power”, “natural finish” and “make-up mochi”. “Make-up paste”, “difficulty in unevenness”, “familiarity with skin”, “brightness of skin”, “covering power” and “natural finish” are evaluated immediately after makeup, and “Make-up” Evaluated the state after 8 hours of makeup with that immediately after makeup. The evaluation criteria are shown below.

"Makeup glue"
5; Makeup paste is very good 4; Makeup paste is good 3; Makeup paste is slightly good 2; Makeup paste is not so good 1; Makeup paste is not good

"Unevenness of unevenness"
5; Very good without unevenness 4; Good without unevenness 3; Somewhat unevenness and not so good 2; There is unevenness and not good 1; Very unevenness and very poor

"Family familiarity"
5: Very well-familiar with makeup 4; Good-fitting skin with makeup 3; Somewhat familiar with skin with makeup 2; Not-familiar with makeup skin 1; Not-familiar with makeup skin

"Skin brightness"
5; Skin appears very bright 4; Skin appears bright 3; Skin appears slightly bright 2; Skin does not appear very bright 1; Skin does not appear bright

"Covering power"
5; Cover power is very high 4; Cover power is high 3; Cover power is slightly high 2; Cover power is not so high 1; Cover power is not high

"Natural finish"
5; Natural finish is very good 4; Natural finish is obtained 3; Natural finish is slightly obtained 2; Natural finish is not so good 1; Natural finish is not obtained

“Make-up Mochi”
5; Make-up is very good 4; Make-up is good 3; Make-up is slightly good 2; Make-up is not good 1; Make-up is not good

(2) Evaluation of foundation application state After applying 0.01 g / 30 cm ^{2 of} each cosmetic using a sponge to a woman whose skin is rough due to dryness, desquamation, etc., an enlarged image is obtained using a DSA (Direct Skin Analyzer). (Condition: 60 times).
FIG. 1A and FIG. 1B are enlarged views of the skin to which the foundations of Examples 1 and 2 are applied, respectively. 2 (a), 2 (b) and 2 (c) are enlarged views of the skin to which the foundations of Comparative Examples 1, 2, and 4 are applied, respectively. FIG. 3 is a view showing an enlarged image of bare skin in which rough skin is conspicuous due to desquamation or the like to which no foundation is applied.

2 (a) to 2 (c), the foundation applied in Comparative Examples 1, 2, and 4 is affected by skin desquamation and rough skin, and the powder is applied to the skin desquamation part and skin groove part. Accumulated and powder is agglomerated. As a result, makeup paste, makeup has a very poor finish and the skin looks dark and dull.
On the other hand, from FIGS. 1 (a) and 1 (b), the foundations of Examples 1 and 2 were applied in a good and uniform state, repairing the skin surface such as desquamation, and suitably following the skin. It has excellent makeup, bright skin, and a natural finish.
From Table 1, the foundations of Examples 1 to 4 were excellent in makeup paste, makeup, covering power, and skin brightness.

(Example 5)
W / O makeup bases having the following compositions were produced and evaluated for makeup paste, resistance to unevenness, familiarity to skin, brightness, covering power, natural finish, and makeup feeling.

(composition)
Component (A): poly (N-acylalkylenimine) modified silicone (* 1) 0.5% by mass
Component (B): Crosslinkable silicone (KSG-16, manufactured by Shin-Etsu Chemical Co., Ltd.) 3.0% by mass
Polyether-modified silicone (SH3775M, manufactured by Dow Corning Toray) 2.0% by mass
Decamethylcyclopentasiloxane 5.5% by mass
Dimethylpolysiloxane 17.0% by mass
Octyl methoxycinnamate 3.0% by mass
Ethanol 5.0% by mass
Glycerin 10.0% by mass
Purified water 45.0% by mass
Component (C-1): Silicone-coated mica 5.5% by mass
Component (C-2): Silicone resin powder 0.5% by mass
Silicone coated fine particle zinc oxide 3.0% by mass
Total 100.0% by mass

(Production method)
After roughly mixing the powder components, the powder components were mixed and pulverized using an Admizer pulverizer (Fuji Paudal). The oil phase component was mixed, and the pulverized powder component was added and dispersed with a disper. Furthermore, the water phase component was mixed and added to the oil phase and powder mixture to emulsify. Thereafter, the viscosity was adjusted with a homomixer to obtain a W / O makeup base.

  The obtained makeup base had good familiarity to the skin and makeup, even when the skin was rough due to desquamation or the like, and was excellent in makeup.

Claims (5)

The following components (A), (B), (C):
(A) organopolysiloxane,
(B) cross-linked methylpolysiloxane,
(C) powder,
And contains water
The component (A) is a polysiloxane composed of a repeating unit represented by the following general formula (1) via an alkylene group containing a hetero atom on at least two silicon atoms of the organopolysiloxane segment constituting the main chain. (N-acylalkylenimine) segments are combined,
(In the general formula (1), R ⁶ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group or an aryl group, and n represents 2 or 3.)
The number average molecular weight of the poly (N-acylalkylenimine) segment is 5.0 × 10 ^{2 to} 1.8 × 10 ³ ,
The mass ratio (a / b) of the organopolysiloxane segment (a) constituting the main chain to the poly (N-acylalkylenimine) segment (b) is 83/17 to 94/6,
The organopolysiloxane having a weight average molecular weight of 1 × 10 ^{4 to} 3 × 10 ⁵ of the organopolysiloxane segment constituting the main chain,
The component (B) is a (dimethicone / vinyl dimethicone) crosspolymer,
Cosmetics, wherein the component (C) includes (C-1) a plate-like powder and (C-2) a spherical powder of an organic synthetic polymer.   In the cosmetic, the content of the component (A) is 0.1 to 6% by mass, the content of the component (B) is 0.1 to 7% by mass, and the content of the component (C) is 5 The cosmetic according to claim 1, which is -30% by mass.   Cosmetics of Claim 1 or 2 whose ratio of the said component (A) with respect to the said component (B) is (A) / (B) = 0.02-50 by mass ratio.   The ratio of the component (A) to the total of the component (C-1) and the component (C-2) is (A) / ((C-1) + (C-2)) = 0. Cosmetics as described in any one of Claims 1 thru | or 3 which are 005-1.   The ratio of the said component (C-1) with respect to the said component (C-2) is a mass ratio, and is (C-1) / (C-2) = 1-30, It is any one of Claims 1 thru | or 4. Cosmetics described in 1.