JP2011016732A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cosmetic exhibiting excellent sense of use, finish and sustainability, and especially exhibiting the finish having nonconventional adhering feeling.SOLUTION: The cosmetic includes (A) a vinyl polymer having a carbosiloxane dendrimer structure on the side chain, (B) a poly(N-acyl alkylene imine)-modified silicone and/or a sugar-modified silicone, (C) a polar oil and (D) a volatile solvent.

Description

  The present invention relates to a cosmetic.

  As an effective means for improving makeup sustainability, it is known to use a film-forming agent having excellent surface protection. For example, Patent Document 1 discloses a cosmetic that uses trimethylsiloxysilicic acid and has excellent sustainability such as an ultraviolet ray prevention effect. In addition, by using a vinyl polymer having a carbosiloxane dendrimer structure in the side chain as a film forming agent, it is possible to form a strong cosmetic coating film, and to improve makeup durability such as abrasion resistance. It has been reported (for example, Patent Document 2).

JP-A-7-309714 JP 2007-320960 A

However, vinyl polymers having a carbosiloxane dendrimer structure in the side chain often form a hard film, and the resulting cosmetic film cannot follow the movement of the skin, thus reducing the usability and the skin. There was a problem of giving an uncomfortable feeling, an occlusion feeling, and a feeling of a film. In addition, the decorative coating film made of a vinyl polymer having a carbosiloxane dendrimer structure in the side chain is fragile and has a problem of lack of adhesion.
Accordingly, there is a demand for cosmetics that are excellent in makeup sustainability and have an improved feeling of use during application, ease of use after application, and finish with a feeling of adhesion.

  The present inventors have solved the above-mentioned problems by combining a vinyl polymer having a carbosiloxane structure in the side chain with a specific modified silicone, a polar oil and a volatile solvent. It was found that a finish with no close contact could be obtained.

The present invention includes the following components (A), (B), (C) and (D):
(A) a vinyl polymer having a carbosiloxane dendrimer structure in the side chain;
(B) poly (N-acylalkylenimine) modified silicone and / or sugar modified silicone,
(C) polar oil,
(D) A cosmetic containing a volatile solvent is provided.

  The cosmetic of the present invention has no skin film feeling after application, and a finish with an unprecedented adhesion feeling is obtained. In addition, pores are hardly noticeable on the finished surface. Furthermore, makeup collapse with time, especially pores, and kinking are unlikely to occur.

  In the vinyl polymer having a carbosiloxane dendrimer structure as a component (A) in the side chain used in the present invention, the carbosiloxane dendrimer structure is preferably a group represented by the following formula (1).

In the formula, Z is a divalent organic group, p is 0 or 1, and R ¹ is an alkyl group having 1 to 10 carbon atoms or an aryl group. X ¹ is a silylalkyl group represented by the following formula when i = 1.

In the formula, R ¹ is the same as described above, R ² is an alkylene group having 2 to 10 carbon atoms, R ³ is an alkyl group having 1 to 10 carbon atoms, X ^{i + 1} is a hydrogen atom, It is a group selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an aryl group, and the silylalkyl group. i is an integer of 1 to 10 indicating the hierarchy of the silylalkyl group, and a ⁱ is an integer of 0 to 3.

  In formula (1), Z is a divalent organic group, alkylene group, arylene group, aralkylene group, ester-containing divalent organic group, ether-containing divalent organic group, ketone-containing divalent organic group, amide group-containing 2 A valent organic group is exemplified. Among these, an organic group represented by the following formula is preferable.

In the formula, R ⁹ is an alkylene group having 1 to 10 carbon atoms, and examples thereof include a methylene group, an ethylene group, a propylene group, and a butylene group. Among these, a methylene group and a propylene group are preferable. R ¹⁰ is an alkyl group having 1 to ¹⁰ carbon atoms, and examples thereof include a methyl group, an ethyl group, a propyl group, and a butyl group. Among these, a methyl group is preferable. R ¹¹ is an alkylene group having 1 to 10 carbon atoms, and examples thereof include alkylene groups such as a methylene group, an ethylene group, a propylene group, and a butylene group. Among these, an ethylene group is preferable. d is an integer of 0 to 4, and e is 0 or 1.

In the formula (1), specific examples of the alkyl group or aryl group having 1 to 10 carbon atoms represented by R ¹ include methyl group, ethyl group, propyl group, butyl group, pentyl group, isopropyl group, and isobutyl. Group, an alkyl group such as a cyclopentyl group and a cyclohexyl group, or an aryl group such as a phenyl group and a naphthyl group. Among these, a methyl group and a phenyl group are preferable, and a methyl group is particularly preferable.
X ¹ is a silylalkyl group represented by the following formula when i = 1.

In the formula, R ¹ is the same as described above. R ² is an alkylene group having 2 to 10 carbon atoms, and a linear alkylene group such as an ethylene group, a propylene group, a butylene group, or a hexylene group; a methylmethylene group, a methylethylene group, a 1-methylpentylene group, 1 And a branched alkylene group such as 1,4-dimethylbutylene group. Among these, an ethylene group, a methylethylene group, a hexylene group, a 1-methylpentylene group, and a 1,4-dimethylbutylene group are preferable. R ³ is an alkyl group having 1 to 10 carbon atoms, and examples thereof include a methyl group, an ethyl group, a propyl group, a butyl group, and an isopropyl group. X ^{i + 1} is a group selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group, and the silylalkyl group. a ⁱ is an integer of 0-3. i is an integer of 1 to 10, which indicates the number of layers of the silylalkyl group, that is, the number of repetitions of the silylalkyl group.

  As the vinyl polymer of component (A), 0 to 99.9 parts by mass of vinyl monomers other than (A1) and (A2), and (A2) general formula (2):

(In the formula, Y is an organic group capable of radical polymerization, and R ¹ and X ¹ are the same as described above.)
A vinyl polymer containing a carbosiloxane dendrimer structure obtained by (co) polymerizing 100 to 0.1 parts by mass of a carbosiloxane dendrimer having an organic group capable of radical polymerization represented by

In the above formula, Y is an organic group capable of radical polymerization, and R ¹ is an alkyl or aryl group having 1 to 10 carbon atoms. Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, an isopropyl group, an isobutyl group, a cyclopentyl group, and a cyclohexyl group. Examples of the aryl group include a phenyl group and a naphthyl group. Among these, a methyl group and a phenyl group are preferable, and a methyl group is particularly preferable.

  In this vinyl polymer, the vinyl monomer of the component (A1) is not particularly limited as long as it has a radical polymerizable vinyl group. Examples of such vinyl monomers include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, Lower alkyl (meth) acrylates such as isobutyl (meth) acrylate, tert-butyl (meth) acrylate, n-hexyl (meth) acrylate, cyclohexyl (meth) acrylate; 2-ethylhexyl (meth) acrylate, Higher alkyl (meth) acrylates such as octyl (meth) acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate; vinyl acetate, vinyl propionate, vinyl butyrate, vinyl caproate, vinyl 2-ethylhexanoate, Fatty acid vinyl esters such as vinyl laurate and vinyl stearate; Aromatic-containing monomers such as tylene, vinyltoluene, benzyl (meth) acrylate, phenoxyethyl (meth) acrylate; (meth) acrylamide, N-methylol (meth) acrylamide, N-methoxymethyl (meth) acrylamide, isobutoxy Amide group-containing vinyl monomers such as methoxy (meth) acrylamide, N, N-dimethyl (meth) acrylamide, vinylpyrrolidone, N-vinylacetamide; hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, Hydroxyl-containing vinyl monomers such as glyceryl (meth) acrylate and hydroxyethylacrylamide; (meth) acrylic acid, itaconic acid, crotonic acid, fumaric acid, maleic acid and other carboxylic acid-containing vinyl monomers and their salts ; Tetrahydroph Ether linkages such as furyl (meth) acrylate, butoxyethyl (meth) acrylate, ethoxydiethylene glycol (meth) acrylate, polyethylene glycol (meth) acrylate, polypropylene glycol mono (meth) acrylate, hydroxybutyl vinyl ether, cetyl vinyl ether, 2-ethylhexyl vinyl ether Containing vinyl-type monomer: Glycidyl (meth) acrylate, (meth) allyl glycidyl ether, methacryloyloxyethyl isocyanate, (meth) acryloxypropyltrimethoxysilane and other reactive group-containing monomers, (meth) acrylic at one end Macromonomers such as polydimethylsiloxane containing groups, polydimethylsiloxane containing styryl groups at one end; butadiene; vinyl chloride; (Meth) acrylonitrile; dibutyl fumarate; maleic anhydride; radical polymerizable unsaturated monomers having a sulfonic acid group such as styrenesulfonic acid, acrylamide-2-methylpropanesulfonic acid, and alkali metals thereof Salts, ammonium salts, organic amine salts; quaternary ammonium salts derived from (meth) acrylic acid such as 2-hydroxy-3-methacryloyloxypropyltrimethylammonium chloride; tertiary amine groups such as dimethylaminoethyl methacrylate Examples thereof include methacrylic acid esters of alcohol having a vinyl chloride, vinyl pyridine and quaternary ammonium salts thereof.

  Polyfunctional vinyl monomers can also be used. For example, trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, ethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate , Polyethylene glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, trimethylolpropane trioxyethyl (meta ) Acrylate, tris (2-hydroxyethyl) isocyanurate di (meth) acrylate, tris (2-hydroxyethyl) isocyanurate tri (meth) acrylate, styryl-blocked polydimethylsiloxane KazuHajime containing silicone - like emission compounds.

  The component (A2) carbosiloxane dendrimer is not particularly limited as long as it has an organic group capable of radical polymerization represented by the general formula (2). In general formula (2), Y is an organic group capable of radical polymerization and may be an organic group capable of radical reaction. Specifically, a (meth) acryloxy group-containing organic group represented by the following general formula , (Meth) acrylamide group-containing organic groups, styryl group-containing organic groups, alkenyl groups having 2 to 10 carbon atoms, and the like.

Wherein R ⁴ and R ⁶ are a hydrogen atom or a methyl group, R ⁵ and R ⁸ are alkylene groups having 1 to 10 carbon atoms, and R ⁷ is an alkyl group having 1 to 10 carbon atoms. B is an integer from 0 to 4 and c is 0 or 1.)

  Examples of such radically polymerizable organic groups include 2-acryloyloxyethyl group, 3-acryloyloxypropyl group, 2-methacryloyloxyethyl group, 3-methacryloyloxypropyl group, 4-vinylphenyl group, 3-vinylphenyl group, Vinylphenyl group, 4- (2-propenyl) phenyl group, 3- (2-propenyl) phenyl group, 2- (4-vinylphenyl) ethyl group, 2- (3-vinylphenyl) ethyl group, vinyl group, allyl Group, methallyl group, 5-hexenyl group and the like.

  In the general formula (2), when i = 1, that is, when the number of silylalkyl groups is 1, the carbosiloxane dendrimer of the component (A2) has the general formula:

Wherein Y, R ¹ , R ² and R ³ are the same as above, R ¹² is the same as the hydrogen atom or R ¹ , a ¹ is the same as a ⁱ , but in one molecule The average total number of a ¹ is 0 to 7.)
Examples of the carboxydendrimer (A2) containing an organic group capable of radical polymerization include carbosiloxane dendrimers represented by the following average composition formula.

  Such carbosiloxane dendrimers can be produced, for example, according to the production methods described in JP-A Nos. 11-1530 and 2000-63225.

  In the vinyl polymer containing a dendrimer structure used in the present invention, the mass ratio of the component (A1) to the component (A2) is (A1) :( A2) = 0: 100 to 99.9: 0.1. Is preferably 5:95 to 90:10, more preferably 10:90 to 80:20.

  The number average molecular weight of the vinyl polymer having a carbosiloxane dendrimer structure as the component (A) used in the present invention is preferably 3,000 to 2,000,000 from the viewpoint of ease of blending as a cosmetic raw material. 000, more preferably 5,000 to 800,000. Further, the property may be any of liquid, gum, paste, solid, etc. at room temperature, but from the viewpoint of sustainability of the resulting cosmetic film, a solid is preferable. From the viewpoint of compoundability, it is preferable to use a solution or dispersion diluted with a solvent.

  The vinyl polymer having a carbosiloxane dendrimer structure in the side chain is particularly preferably a silicone dendrimer / acrylic copolymer, FA4001CM (decamethylcyclopentasiloxane solution), FA4002ID (isododecane solution) (above, Toray Dow Corning Co., Ltd.) (Commercially available) can be used.

  As the component (A), one or more kinds can be used, and the content of 0.1 to 30% by mass, particularly 0.5 to 20% by mass in the whole composition is high, and high water repellency is obtained. It is preferable because a feeling of use, particularly excellent spread, is obtained.

  The cosmetic of the present invention contains (B1) poly (N-acylalkylenimine) -modified silicone and / or (B2) sugar-modified silicone.

  The component (B1) poly (N-acylalkyleneimine) -modified silicone used in the present invention is a copolymer having an organopolysiloxane segment and poly (N-acylalkyleneimine), and has a molecule formed by a bond other than a covalent bond. In order to cause intercrosslinking, it exhibits a viscous liquid state, a rubber state, or a solid state at normal temperature and pressure.

  Examples of the poly (N-acylalkylenimine) -modified silicone include a compound represented by the formula (3) in the molecule.

(In the formula, R represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group, an aralkyl group or an aryl group, and n is 2 or 3)
A segment of poly (N-acylalkyleneimine) composed of a repeating unit represented by formula (1) and an organopolysiloxane segment, and at least one silicon atom at the terminal or side chain of the organopolysiloxane segment is a heteroatom. A group in which segments of a poly (N-acylalkylenimine) composed of the repeating unit represented by the formula (3) are bonded via an alkylene group containing is preferable. The mass ratio of the poly (N-acylalkylenimine) segment to the organopolysiloxane segment is preferably 1/50 to 20/1, more preferably 1/40 to 2/1, and the molecular weight is preferably Is 500 to 500,000, more preferably 1,000 to 300,000. R is preferably a methyl group or an ethyl group.

  The alkylene group containing a hetero atom in at least one of the terminal or side chain silicon atoms of the organopolysiloxane segment is an alkylene group having 2 to 20 carbon atoms containing 1 to 3 nitrogen atoms, oxygen atoms or sulfur atoms. In particular, an alkylene group having 2 to 5 carbon atoms containing a nitrogen atom is preferable.

  Preferred examples of such poly (N-acylalkylenimine) modified silicone include poly (N-formylethyleneimine) modified silicone, poly (N-acetylethyleneimine) modified silicone, poly (N-propionylethyleneimine) modified silicone, and the like. Is mentioned. Among them, a poly (N-propionylethyleneimine) modified silicone (INCI) having a weight average molecular weight of about 20,000 to 200,000 and a ratio of poly (N-propionylethyleneimine) segment in the molecule of about 3 to 50% by mass. Name: Polysilicone-9; Elastomer OS, Kao).

  The poly (N-acylalkylenimine) -modified silicone can be produced by a known method, for example, a method described in JP-A-7-133352.

  The molecular weight of the molecular chain of the poly (N-acylalkylenimine) is preferably from 150 to 50,000, more preferably from 500 to 10,000, from the viewpoint of the stability of the preparation and the feeling of use. When the molecular weight is 150 or more, excellent stability is obtained, and when the molecular weight is 50,000 or less, a good feeling in use is obtained.

  In the present invention, the sugar-modified silicone used as component (B2) has a sugar-derived residue at one end, both ends, or side chains of the molecular chain.

  In the sugar-modified silicone (B2), examples of the sugar-derived residue include a sugar lactone amide alkyl group (a group in which a sugar lactone compound and an aminoalkyl group are amide-bonded). Moreover, as sugar modified silicone, what contains 40-97 mass% of silicone chains, especially 50-85 mass%, and a weight average molecular weight is 5,000-500,000, especially 50,000-300,000. preferable. When the amount of modification of the sugar-derived residue is large, the stability is good, and when it is small, the feeling of use tends to be good. Further, when the molecular weight is large, the stability is good, and when the molecular weight is small, the elongation tends to be excellent when applied.

  The sugar-modified silicone (B2), for example, generates an amide bond by reacting an organopolysiloxane having at least one aminoalkyl group with a sugar lactone compound (a product obtained by hydrating aldonic acid or uronic acid in the molecule). It is manufactured by.

  Here, as an aminoalkyl group, a C1-C20 aminoalkyl group, especially a C1-C8 aminoalkyl group are preferable. Examples of lactone compounds in which aldonic acid or uronic acid is cyclized in the molecule include D-glucose, D-galactose, D-allose, D-altrose, D-mannose, D-growth, D-idose, D-talose, and the like. Lactone of aldonic acid derived from reducing monosaccharide; Lactone of aldonic acid derived from reducing disaccharides such as maltose, cellobiose, lactose, xylobiose, isomaltose, nigerose, cordobiose; maltotriose, vanose, isomaltotriose Aldonic acid lactones derived from reducing trisaccharides such as aldonic acid lactones derived from tetrasaccharides or more reducing oligosaccharides; uronic acid lactones such as D-glucuronic acid, L-iduronic acid and mannuronic acid Can be mentioned. These can be subjected to the reaction alone or as a mixture.

The reaction between the organopolysiloxane precursor having an aminoalkyl group and the sugar lactone is preferably performed by mixing the sugar lactone in an amount of 1.0 to 1.3 times the mol of the amino group of the organopolysiloxane precursor in a solvent. And it can carry out by stirring for 3 to 20 hours under heating and refluxing at a solution concentration of 5 to 30% by mass. As the solvent used in this case, lower alcohols such as methanol, ethanol, 1-propanol and 2-propanol are suitable.
The sugar-modified silicone used in the present invention may have other functional groups as long as the properties are not lost.

  Specific examples of the component (B2) sugar-modified silicone used in the cosmetic of the present invention include, for example, Synthesis Examples 8 to 10 and Comparative Synthesis Example 3 described in JP-A-07-133352. Commercially available products such as silicones having gluconamide groups at both ends (silicone having 300 to 350 repeating units; Dow Corning CE-8810 Sugar Silicone Emulsion, Toray Dow) and the like are also preferably used.

  One or more components (B) can be used, and components (B1) and (B2) can also be used in combination. The content of the component (B) is preferably from 0.1 to 30% by mass, more preferably from 0.1 to 20% by mass from the viewpoint of stability. When the content is 0.1% by mass or more, high water repellency is obtained, and when the content is 30% by mass or less, good elongation is obtained during use.

  The mass ratio (A) / (B) of the component (A) and the component (B) is in the range of (A) / (B) = 0.003 to 300 from the viewpoint of the suppression of shine and the finish with a feeling of adhesion. Preferably, it is in the range of 0.005 to 200. By setting the mass ratio of (A) / (B) to 0.003 or more, it becomes a finish with a feeling of adhesion, making it difficult to shine, and the mass ratio of (A) / (B) being 300 or less. Thus, excellent stability is exhibited.

  The polar oil of component (C) used in the present invention is liquid at 25 ° C. Here, the liquid state has fluidity, and includes a cream form and a paste form. The molecular weight of the polar oil of component (C) is preferably in the range of 250 to 2000, more preferably 300 to 1000. If the molecular weight is lower than this, it tends to diffuse, while if it is higher, the compatibility with the component (A) is lowered and it may be difficult to obtain a plasticizing effect.

The polar oil of component (C) has a solubility parameter (SP value) of 16.5 or more, particularly 17.5 to 23, and more preferably 19 to 22.
A polar oil having an SP value in this range is preferable because it is compatible with a vinyl polymer having a carbosiloxane dendrimer structure in the side chain and exhibits tackiness. Further, since it is greatly different from the solubility parameter (about 15) of low viscosity silicone oil such as polydimethylsiloxane, it is incompatible with the low viscosity silicone oil, and the strength and adhesiveness of the decorative film are not lowered.

Here, the SP value of polar oil is a solubility parameter δ, which is a substance constant given by δ = (E / V) ^1/2 (J / cm ³ ) from the molecular cohesive energy E and molecular volume V of the liquid. It is. The SP value can be determined by various methods. In the present invention, according to the method of Fedors (“POLYMER HANDBOOK 4 ^th ” by J. BRANDRUP, JHON WILEY & SONS, INC 1999, published), parameters shown in paragraphs VII685 to 686 It is obtained using.

Specifically, for example, isotridecyl isononanoate (16.5), diisostearyl malate (17.9), isostearyl myristate (16.9), triisostearin (17.1), trisethoxydiphosphate Glycol (18.1), neopentyl glycol dicaprate (18.2), glyceryl tri-2-ethylhexanoate (18.6), diglyceryl diisostearate (18.7), glyceryl monoisostearate glyceryl (19) .1), 2-ethylhexyl paramethoxycinnamate (19.2), dl-α-tocopherol (19.4), diglyceryl monoisostearate (21.7) and the like.
In particular, 2-methoxyhexyl paramethoxycinnamate, dl-α-tocopherol, and diglyceryl monoisostearate are preferable from the viewpoint of makeup durability and adhesion.

  One or more polar oils of the component (C) can be used, and 0.1 to 30% by mass, particularly 0.5 to 20% by mass is contained in the total composition, and a sufficient effect is obtained. It is preferable because the spread does not become heavy and the feeling of use is good.

  Furthermore, it is more preferable to use two or more types of polar oils. Particularly, a polar oil having an SP value in the range of 16.8 to 18.4 and a polar oil in the range of 18.5 to 23 are combined, and (SP The value of oily substance having a value of 16.8 to 18.4) / (oily substance having an SP value of 18.5 to 23) of 0.01 to 100 indicates that the feeling of use, makeup persistence, and stability of the composition From the viewpoint of sex.

  Moreover, it is preferable that the mass ratio of a component (A) and a component (C) is (A) / (C) = 0.1-10, especially 0.1-5 from a viewpoint of a usability | use_condition. When the mass ratio of (A) / (C) is 0.1 or more, it is not sticky, and when it is 10 or less, skin follow-up properties are expressed.

  The volatile solvent of component (D) is a liquid at room temperature with an atmospheric pressure boiling point of 70 to 250 ° C., and specifically, for example, polydimethylsiloxane (1.5 cs), polydimethylsiloxane (2 cs), etc. Linear siloxanes; branched siloxanes such as tris (trimethylsilyl) methylsilane and tetrakis (trimethylsilyl) silane; cyclic siloxanes such as decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane; hydrocarbon oils such as isododecane and light liquid paraffin Can be mentioned.

The content of the volatile solvent of component (D) is preferably from 0.1 to 90% by mass, more preferably from 0.5 to 60% by mass, from the viewpoint of the feeling during use at the time of application. Within this range, elongation and familiarity are good and preferable.
In addition, the volatile solvent used in order to dissolve or disperse the vinyl copolymer having the carbosiloxane dendrimer structure of the component (A) in the side chain is also included in the component (D).

The cosmetic of the present invention may further contain a powder, and a hydrophobized powder is particularly preferably used.
Such a hydrophobized powder is a powder exhibiting hydrophobicity, and the powder itself is hydrophobic, and the powder itself is not hydrophobic but is subjected to a hydrophobizing process to exhibit hydrophobicity. It is not particularly limited by the shape of a sphere, plate, needle, etc., the particle size of fumes, fine particles, pigment grade, etc., the particle structure of porous, non-porous, etc.

  Specifically, the powder itself is hydrophobic, such as nylon powder, polymethyl methacrylate, acrylonitrile-methacrylic acid copolymer powder, vinylidene chloride-methacrylic acid copolymer powder, polyethylene powder, polystyrene powder, organopoly Siloxane elastomer powder, polymethylsilsesquioxane powder, polytetrafluoroethylene powder, urethane powder, wool powder, magnesium stearate, zinc stearate, N-acyl lysine, organically modified clay mineral, boron nitride, organic tar pigment, etc. Is mentioned.

  Specifically, the powder itself is not hydrophobic, such as titanium oxide, conger, ultramarine, red iron oxide, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, silicon dioxide, magnesium oxide, zirconium oxide, magnesium carbonate, carbonic acid. Calcium, chromium oxide, chromium hydroxide, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, synthetic sericite, sericite, talc, kaolin, barium sulfate, bentonite, smectite, bismuth oxychloride, mica Titanium, iron oxide coated mica, iron oxide coated mica titanium, fine titanium oxide coated mica titanium, fine zinc oxide coated mica titanium, bengara coated mica titanium, barium sulfate coated mica titanium, titanium oxide containing glass flakes, zinc oxide containing two Composite powders, and the like of the equalization silicon, can be used individually or in combination as these demands.

  In order to hydrophobize the powder itself that is not hydrophobic, a known hydrophobizing agent and a known hydrophobizing method may be used. For example, surfaces of fluorine compounds, silicone compounds, metal soaps, oils, etc. What is necessary is just to perform a dry process, a wet process, etc. using a processing agent. Specific examples of the surface treatment agent include fluorine compounds such as perfluoroalkyl phosphate ester and perfluoroalkylalkoxysilane, methyl hydrogen polysiloxane, cyclic silicone, one- or both-end trialkoxy group-modified organopolysiloxane, and the like. Examples include silicone compounds, metal soaps such as aluminum stearate and zinc stearate, and amino acid compounds such as lauroyllysine. Although there is no restriction | limiting in the amount of surface treatment, 0.5-20 mass% is preferable with respect to the original powder, and 2-8 mass% is more preferable.

  1 or more types can be used for hydrophobic powder, and it is preferable to contain 1-30 mass% in the whole composition, especially 5-20 mass%.

  Among the hydrophobic powders, 0.5 to 15% by mass of a plate-like powder having an average particle size of 1 to 15 μm or less, further 1 to 10% by mass, and 0 of a spherical powder having an average particle size of 1 to 20 μm. When it contains 5 to 15% by mass, and further 1 to 10% by mass, it can give a glossy feeling without impairing the natural finished skin feeling and transparency, and good pore and uneven concealing effect can be obtained. This is preferable. In the present invention, the average particle diameter means a volume-based average particle diameter measured using ethanol as a solvent and using a laser diffraction particle size distribution analyzer.

  The plate powder adheres to the flat part of the skin and gives a glossy feeling, and the spherical powder adheres to the uneven part, making the uneven part inconspicuous. If the average particle size of the plate-like powder exceeds 15 μm, it is not preferable because the gloss is so high that the feeling of glare is strong and unnatural finish is obtained, the makeup is not easy and the pores are easily noticeable. Specific examples of the plate powder include clay minerals such as mica, talc, sericite, mica titanium, iron oxide coated mica, iron oxide coated mica titanium, fine particle titanium oxide coated mica titanium, fine particle zinc oxide coated mica titanium, Examples thereof include composite powders such as Bengala-coated mica titanium, barium sulfate-coated mica titanium, titanium oxide-containing glass flakes, and zinc oxide-containing silicon dioxide. These may be used alone or in combination of two or more as required.

  The spherical powder has a property of suppressing regular reflection and / or irregular reflection, and the shape thereof includes a true sphere, a substantially spherical shape, and a spheroid, and further includes a spherical powder having irregularities on the surface. If the average particle size is 1 to 20 μm, it will not be buried in the decorative film, and will easily adhere uniformly to the uneven parts, so the “blurring” effect is an effect that blurs the boundary lines of uneven parts such as pores and fine lines. Can be fully expressed, and irregularities such as pores and fine lines can be made inconspicuous. In particular, by setting the average particle size of the spherical powder to 1 μm or more, the spherical powder is not buried in the decorative film, and the usability is smooth and good.

Specific examples of such spherical powder include spherical metal oxides such as SiO ₂ and Al ₂ O ₃ , inorganic compounds such as barium sulfate and calcium carbonate, polyethylene, polymethyl methacrylate, polystyrene, nylon, cellulose, Examples thereof include high molecular compounds such as silicone resin and polyurethane. The spherical powder can be used as one kind or a mixture of two or more kinds.

The cosmetic of the present invention can be in a normal dosage form. Examples of such dosage forms include emulsions, creams, pastes, gel-like preparations having an emulsified state of water-in-oil type, oil-in-water type, or multi-emulsion type; oily preparations; oily solid preparations and the like.
In the case of a water-in-oil emulsified cosmetic, the viscosity at 25 ° C. is 500 to 200,000 mPa · s, particularly 1,000 to 100,000 mPa · s, and further 2,000 to 50,000 mPa · s. Is preferable because of its excellent covering power. Here, the viscosity is measured with a B-type viscometer.

  In the case of a water-in-oil emulsified cosmetic, water is contained in addition to the above components. By containing water, the cosmetics of the present invention can be imparted with qualities such as a refreshing feeling and elongation / attachment. The content of water is preferably 0.1 to 90% by mass, more preferably 10 to 60% by mass. Cooling can be obtained by adjusting the amount of water to 0.1% by mass or more. Moreover, the outstanding elongation is exhibited because the quantity of water shall be 90 mass% or less.

In addition, when a water-in-oil emulsified cosmetic is used, it is preferable to contain a surfactant in order to improve the appearance and stability of the product. As the surfactant to be used, nonionic surfactants are preferable, and those having HLB of 1 to 7, particularly 2 to 6 are preferable from the viewpoint of makeup sustainability and stability.
Specific examples of such nonionic surfactants include glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbit / sorbitan fatty acid ester, polyoxyethylene castor Examples thereof include oil, polyoxyethylene hydrogenated castor oil, ethylene glycol fatty acid ester, polyethylene glycol fatty acid ester, alkyl glyceryl ether, polyoxyethylene alkyl ether, polyoxyethylene alkyl ether fatty acid ester, and silicone surfactant. In particular, a dimethylpolysiloxane / polyoxyalkylene copolymer and a dimethylpolysiloxane / monoalkylglyceryl ether copolymer are preferable.
The content of the nonionic surfactant is preferably 0.1 to 5% by mass, and more preferably 0.3 to 3.5% by mass from the viewpoint of emulsion stability and makeup sustainability. preferable.

  Moreover, it is preferable that 0.1 to 90 mass%, especially 10 to 60 mass% of water is contained in the whole composition.

  In addition to the above-mentioned components, the cosmetics of the present invention are usually used in cosmetics, for example, other oily substances, pigments, water-soluble polymers, antioxidants, fragrances, dyes, preservatives, ultraviolet absorbers, Thickener, pH adjuster, blood circulation promoter, cooling agent, antiperspirant, disinfectant, skin activator, moisturizer, cooling agent, etc., qualitative and quantitative range that does not impair the purpose and effect of the present invention Can be contained within.

  Among these, when using an oily substance other than those described above, those having a solubility parameter of 12 or less are particularly preferable. For example, fluorine-based compounds such as liquid paraffin, silicone oil, perfluoropolyether, perfluorodecalin, and perfluorooctane. An oil agent, fluorine-modified silicone, or the like can be used.

  Of the optional components, lower alcohols such as methanol, ethanol, propanol and isopropanol are preferably used in an amount of 30% by mass or less, particularly 20% by mass or less, from the viewpoints of usability and stability.

  The cosmetics of the present invention are skin care cosmetics such as liquid type emulsions, creams, detergents, etc .; makeup cosmetics such as foundations, makeup bases, blusher, eye shadow, mascara, eyeliner, eyebrow, overcoat agent, lipstick, etc. And so on.

  The cosmetic of the present invention can be produced according to a usual method. The mixing procedure is not particularly limited, but it is preferable that the polymer components such as the component (A) and the component (B) are previously dissolved or dispersed in a liquid component that dissolves them well and then mixed with other components. .

Examples 1-9 and Comparative Examples 1-3
A water-in-oil emulsified foundation having the composition shown in Table 1 was produced, and there was no film feeling (smoothness, occlusion, pressure, discomfort), a finish with a feeling of adhesion immediately after application, difficulty in conspicuous pores immediately after application, The difficulty of conspicuous pores after 5 hours and the difficulty of conspicuous twisting after 5 hours were evaluated. The results are also shown in Table 1.

(Manufacturing method)
After the oil phase component and the polymer component were uniformly mixed, the powder component was dispersed in the oil phase component with a propeller. A mixture of aqueous phase components was gradually added to this while stirring, and further emulsified with a homomixer, and then defoamed to obtain the desired water-in-oil emulsion foundation.

(Evaluation methods)
(1) Feeling of the film (tension, pressure, discomfort):
Ten professional evaluators made sensory evaluations of the sense of tension, pressure and discomfort when using each water-in-oil emulsified cosmetic, and determined the following criteria.
A: Evaluated that there were fewer than 8 people.
○: It was evaluated that there were few 6-7 people.
(Triangle | delta); It evaluated that there were few 4-5 persons.
X: It evaluated that there were few 3 or less persons.

(2) Finish with a feeling of adhesion immediately after application:
When 10 professional evaluators used each water-in-oil type emulsified cosmetic, the finish with a feeling of adhesion immediately after application was sensory-evaluated and judged according to the following criteria.
A: Eight or more people evaluated it as a close finish.
○: Six to seven people evaluated the finish with a close feeling.
(Triangle | delta); 4-5 people evaluated it as the finish with a close feeling.
X: Three or less people evaluated it as the finish with a close feeling.

(3) Poor conspicuous pore immediately after application:
When 10 professional evaluators used each water-in-oil type emulsified cosmetic, the conspicuousness of pores immediately after application was subjected to sensory evaluation, and judged according to the following criteria.
A: Evaluated that 8 or more people were not outstanding.
○: Six to seven people were evaluated as inconspicuous.
(Triangle | delta); 4-5 persons evaluated that it was not conspicuous.
X: Three or less people evaluated that it was not conspicuous.

(4) Poor conspicuous pores after 5 hours:
Ten professional evaluators used each water-in-oil emulsified cosmetic to perform sensory evaluation of the conspicuousness of pores when 5 hours had elapsed, and determined according to the following criteria.
A: Evaluated that 8 or more people were not outstanding.
○: Six to seven people were evaluated as inconspicuous.
(Triangle | delta); 4-5 persons evaluated that it was not conspicuous.
X: Three or less people evaluated that it was not conspicuous.

(5) The conspicuousness of shading after 5 hours:
Ten professional evaluators used each water-in-oil emulsified cosmetic to perform sensory evaluation on the conspicuousness of kinks when 5 hours had elapsed, and determined them according to the following criteria.
A: Evaluated that 8 or more people were not outstanding.
○: Six to seven people were evaluated as inconspicuous.
(Triangle | delta); 4-5 persons evaluated that it was not conspicuous.
X: Three or less people evaluated that it was not conspicuous.

Example 10 (base cream)
(1) Dimethylpolysiloxane / polyoxyethylene copolymer (SH3775M, manufactured by Toray Dow Corning) 0.5 (mass%)
(2) Decamethylcyclopentasiloxane 23.0
(3) Dimethylpolysiloxane (2cs) 17.5
(4) Silicone dendrimer / acrylic copolymer (FA4001CM: 30% decamethylcyclopentasiloxane solution,
Toray Dow Corning) 3.0
(5) Fluorine-modified silicone (compound described in JP-A-6-184312, Example 4) 4.0
(6) 2-Ethylhexyl paramethoxycinnamate (Pulsol MCX, DSM Nutrition Japan; SP value 19.2)
2.0
(7) Poly (N-propionylethyleneimine) -modified silicone (synthesized according to Japanese Patent No. 3118192, Synthesis Example 9) 1.2
(8) Ethanol 9.8
(9) Tuberose polysaccharide solution 5.0
(10) Magnesium sulfate 0.3
(11) Purified water remaining amount (12) Talc 3.0
(13) Mica 3.0
(14) Silicone-treated titanium oxide coated glass flakes 2.0
(15) Silicone-treated mica titanium 2.0
(16) Fluorine-treated iron oxide 0.045
(17) Fluorine-treated urethane powder 2.0
Total 100

(Manufacturing method)
Components (1) to (7) are mixed uniformly, and components (12) to (17) are mixed using a disper. The mixture of component (8)-(11) is added and mixed there, and a foundation cream is obtained.
((A) / (C) = 0.45)
((A) / (B) = 0.75)

Example 11 (creamy foundation)
(1) Silicone-treated titanium oxide 10.0 (mass%)
(2) Silicone-treated sericite 8.0
(3) Silicone-treated Bengala 2.0
(4) Silicone-treated yellow iron oxide 3.5
(5) Silicone-treated black iron oxide 0.5
(6) Poly (N-propionylethyleneimine) -modified silicone (synthesized according to Patent 3118192, Synthesis Example 8) 3.0
(7) Silicone dendrimer / acrylic copolymer (FA4002ID: 40% isododecane solution, manufactured by Toray Dow Corning)
10.0
(8) Decamethylcyclopentasiloxane 15.0
(9) Dimethylpolysiloxane / methylpolyoxyethylene copolymer (KF-6015, manufactured by Shin-Etsu Chemical Co., Ltd.) 4.0
(10) Dimethylpolysiloxane (2cs) 1.0
(11) 2-Ethylhexyl paramethoxycinnamate (Pulsol MCX, DSM Nutrition Japan; SP value 19.2)
10.0
(12) Ethanol 7.0
(13) Glycerin 5.0
(14) Purified water remaining
Total 100

(Manufacturing method)
Components (6) to (11) are mixed uniformly, and components (1) to (5) are dispersed therein using a disper. Furthermore, components (12) to (14) are added and stirred to obtain a creamy foundation.
((A) / (C) = 4)
((A) / (B) = 1.33)

Example 12 (Eyeshadow)
(1) Decamethyltetrasiloxane (1.5cs) Remaining amount (mass%)
(2) Silicone dendrimer / acrylic copolymer (FA4002ID: 40% isododecane solution, manufactured by Toray Dow Corning)
10
(3) Diisostearyl malate 1.0
(4) Poly (N-propionylethyleneimine) -modified silicone (synthesized according to Patent No. 3118192, Synthesis Example 9) 3.6
(5) Ethanol 8.4
(6) Dimethylpolysiloxane / methylpolyoxyethylene copolymer (KF-6015, manufactured by Shin-Etsu Chemical Co., Ltd.) 6.0
(7) Purified water 5.0
(8) Silicone-treated talc 1.8
(9) Silicone-treated mica titanium 22.0
Total 100

(Manufacturing method)
Components (1) to (6) are mixed uniformly, and components (8) to (9) are added thereto and mixed using a disper. Further, the component (7) is added and mixed to obtain an eye shadow.
((A) / (C) = 4)
((A) / (B) = 1.11)

Example 13 (Sun Care Foundation)
(1) α-monoisostearyl glyceryl ether 2 (mass%)
(2) Aluminum distearate 0.2
(3) Silicone dendrimer / acrylic copolymer (FA4002ID: 40% isododecane solution, manufactured by Toray Dow Corning)
10
(4) Neopentyl glycol dicaprate 5.0
(5) Methylphenylpolysiloxane (14cs) 5.0
(6) 2-methoxyhexyl paramethoxycinnamate (Pulsol MCX, DSM Nutrition Japan, SP value 19.2)
2.0
(7) Isododecane 2.0
(8) Silicone-treated fine particle titanium oxide 3.0
(9) Silicone-treated sericite 2.0
(10) Silicone-treated talc 3.0
(11) Silicone-treated Bengala 0.4
(12) Silicone-treated yellow iron oxide 0.7
(13) Silicone-treated black iron oxide 0.1
(14) Poly (N-propionylethyleneimine) -modified silicone (synthesized according to Synthesis Example 5 of JP-A No. 7-13352) 2.0
(15) Magnesium sulfate 1.0
(16) 70% aqueous solution of sorbitol 5.0
(17) Methylparaben 0.1
(18) A small amount of fragrance
(19) Remaining amount of purified water
Total 100

(Manufacturing method)
Ingredients (1) to (13) are uniformly mixed and heated to 70 to 90 ° C. in advance to be uniformly dissolved. Add components (14) to (19) and stir and mix in an emulsifier. Cool to room temperature to obtain a suncare foundation.
((A) / (C) = 0.6)
((A) / (B) = 2)

  All of the cosmetics obtained in Examples 10 to 13 are excellent in feeling of use, finish, and sustainability, and particularly excellent in finish with a close feeling.

Claims (3)

The following components (A), (B), (C) and (D):
(A) a vinyl polymer having a carbosiloxane dendrimer structure in the side chain;
(B) poly (N-acylalkylenimine) modified silicone and / or sugar modified silicone,
(C) polar oil,
(D) Cosmetics containing a volatile solvent.   Furthermore, the cosmetic according to claim 1, which is a water-in-oil emulsified cosmetic containing water and a nonionic surfactant.   The cosmetic according to claim 1 or 2, further comprising a hydrophobically treated spherical powder.