JP2018090495A - Oily cosmetics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide oily cosmetics that have a good smooth feeling, and prevent color migration when wetted with water.SOLUTION: Oily cosmetics contain following components (A), (B), (C) and (D): (A) a cellulose derivative that has a cellulose skeleton in the main chain, where 45-95 mol% of all the hydroxy groups is substituted with group-O-M-R (M is CHor carbonyl group C=O, R is a C3-40 linear or branched alkyl group or alkenyl group) of 1-50 mass%, (B) a volatile hydrocarbon oil of 5-85 mass%, (C) an ester oil that is liquid at 25°C of 5-50 mass%, (D) a vinyl polymer having a carbosiloxane dendrimer structure in a side chain of 0.01-25 mass%.SELECTED DRAWING: None

Description

  The present invention relates to an oily cosmetic.

  In oily cosmetics such as lipsticks, various studies have been made to obtain a beautiful finish and a smooth feel. For example, Patent Document 1 describes that an oily cosmetic material obtained by combining a specific acylated cellulose derivative, an ester oil, and a hydrocarbon oil in a specific ratio maintains a smooth feel. Patent Document 2 describes that an oily cosmetic material containing a specific acylated cellulose derivative, a silicone oil agent, and an ester oil is excellent in transparency and gloss, and maintains a smooth feel. Describes that an oily cosmetic containing a specific acylated cellulose derivative and a silicone having a nonionic hydrophilic group is excellent in sustainability of a beautiful cosmetic finish and maintains a smooth feel.

JP 2010-1000061 A JP 2011-79746 A JP 2011-173818 A

  Although the oily cosmetic containing the acylated cellulose derivative is excellent in smooth touch, when applied to the lips, there is a problem that when the lips are wet with water, the color easily shifts to tableware or a cup.

  When the present inventors use a specific acylated cellulose derivative and a vinyl polymer having a volatile hydrocarbon oil, an ester oil and a carbosiloxane dendrimer structure in a side chain in a specific ratio, a smooth feel is obtained. It was found that an oily cosmetic with excellent color resistance and suppressed color transfer when wet with water was obtained.

The present invention includes the following components (A), (B), (C) and (D):
(A) It has a cellulose skeleton in the main chain, and 45 to 95 mol% of all hydroxyl groups are groups —O—M—R (M represents CH ₂ or a carbonyl group C═O, and R represents a straight chain having 3 to 40 carbon atoms. 1 to 50% by mass of a cellulose derivative substituted with a chain or branched chain alkyl group or alkenyl group)
(B) 5 to 85% by mass of volatile hydrocarbon oil,
(C) 5 to 50% by mass of an ester oil that is liquid at 25 ° C.
(D) A vinyl polymer having a carbosiloxane dendrimer structure in the side chain 0.01 to 25% by mass
The present invention relates to an oily cosmetic containing

  The oily cosmetic composition of the present invention has no unevenness at the time of application and is easy to finish.After application, it is smooth and smooth, and even when wet, the color transfer to the cup is suppressed, and the entire lip It is difficult to squeeze, and even after a long time has passed, lipstick is less likely to be near the lip contour. Moreover, when removing cosmetics from lips or skin, it can be removed cleanly.

The cellulose derivative of the component (A) used in the present invention is not limited as long as it has a cellulose skeleton in the main chain, but the raw material cellulose derivative includes cellulose and short chain acyls such as acetylcellulose and acetylbutylcellulose. Preferred are short-chain alkyl etherified celluloses such as functionalized cellulose, methylcellulose, and ethylcellulose, cellulose modified with hydroxyalkyl groups, glyceryl ether groups, and (mono) alkyl glyceryl ether groups. More specifically, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, glyceryl cellulose, methyl glyceryl cellulose and the like can be mentioned.
Furthermore, what has the following structural units as a cellulose derivative of the manufacturing raw material of the cellulose derivative of a component (A) is preferable.

(In the formula, R ′ represents a linear or branched alkylene group having 2 to 8 carbon atoms, and n represents a number with an average added mole number of R′O per glucose unit of 0.1 to 10)

  In the structural unit, R ′ is preferably a linear or branched alkylene group having 2 to 4 carbon atoms, and more preferably an ethylene group or a propylene group. Moreover, as n, the number from which the average added mole number of R′O per glucose unit is 0.3 to 5 is preferable, the number from 0.5 to 4.5 is more preferable, and the number from 1 to 4 is Further preferred.

Preferred examples of the raw material cellulose derivative include hydroxyethyl cellulose and hydroxypropyl cellulose, and hydroxypropyl cellulose is more preferred.
Moreover, the mass average molecular weight (Mw) of the raw material cellulose derivative is preferably 10,000 to 4,000,000, more preferably 100,000 to 3,000,000, and still more preferably 300,000 to 200, from the viewpoint of solubility in oil and feel. It is ten thousand.

Component cellulose derivative (A) refers to the group -O-M-R is a hydroxyl substituents of the raw material cellulose derivative, M represents a CH ₂ or a carbonyl group C = O, R is a straight of 3 to 40 carbon atoms A chain or branched alkyl group or alkenyl group.
(I) As a linear alkyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, Heptadecyl group, octadecyl group, nonadecyl group, icosyl group, heicosyl group, docosyl group, tricosyl group, tetracosyl group, pentacosyl group, hexacosyl group, heptacosyl group, octacosyl group, nonacosyl group, triacontyl group, hentriacontyl group, dotriacontyl group, Examples include tritriacontyl group, tetratriacontyl group, pentatriacontyl group, hexatriacontyl group, heptatriacontyl group, octatriacontyl group, nonatriacontyl group and tetracontyl group.

(Ii) Examples of branched alkyl groups include methylpentyl, methylhexyl, methylheptyl, methyloctyl, methylnonyl, methylundecyl, methylheptadecyl, ethylhexadecyl, methyloctadecyl, propyl Pentadecyl group, 2-hexyldecyl group, 2-octyldodecyl, 2-heptylundecyl group, 2-decyltetradecyl group, 2-dodecylhexadecyl group, 2-tetradecyloctadecyl group, 2-hexadecylicosyl group Etc.

(Iii) linear alkenyl groups include dodecenyl group, tridecenyl group, tetradecenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group, octadecenyl group, nonadecenyl group, icosenyl group, heicosenyl group, dococenyl group, tricocenyl group, tetracocenyl group, Examples include a pentacocenyl group, a hexacocenyl group, a heptacocenyl group, and an octacocenyl group.
(Iv) Examples of branched alkenyl groups include isotridecenyl group, isooctadecenyl group, isotriacontenyl group, 2-butyloctenyl group, 2-hexyldecenyl group, 2-octyldodecenyl group, 2-decyltetra A decenyl group, 2-dodecyl hexadecenyl group, etc. are mentioned.

  Among these, a linear alkyl group is preferable from the viewpoint of imparting smoothness during the application of the oily cosmetic and forming a uniform film on the lips and the skin. Moreover, from the ease of extending | stretching and the adhesiveness, C9-C21 is preferable, C11-C17 is more preferable, and C15 is still more preferable.

Hydroxyl group -O-M-R substitution rate is 45 mol% or more from the viewpoint of enhancing the solubility in oil, not feeling sticky or sticking during coating, and suppressing secondary adhesion to cups, etc. Yes, 48 mol% or more is preferable, 51 mol% or more is more preferable, and 95 mol% or less is preferable, 94 mol% or less is preferable, 92 mol% or less is more preferable, and 66 mol% or less is still more preferable from the viewpoint of improving dripping resistance and water resistance. . Further, the hydroxyl group-O-M-R substitution rate is 45 to 95 mol%, preferably 48 to 94 mol%, more preferably 51 to 92 mol%, and still more preferably 51 to 66 mol%.
It is preferable that the hydroxyl group remains appropriately from the viewpoint of feeling of use and pigment dispersibility, preferably 5 mol% or more, more preferably 6 mol% or more, further preferably 8 mol% or more, and further preferably 34 mol% or more. 55 mol% or less is preferable, 52 mol% or less is more preferable, and 49 mol% or less is more preferable. The residual ratio of hydroxyl groups is preferably 5 to 55 mol%, more preferably 6 to 52 mol%, still more preferably 8 to 49 mol%, and still more preferably 34 to 49 mol%.

The mass average molecular weight of the component (A) cellulose derivative is preferably 100,000 or more, more preferably 200,000 or more, still more preferably 300,000 or more, from the viewpoint that the solubility in the oil component and the smooth feel are maintained. 10,000 or more are more preferable, 5 million or less are preferable, 4 million or less are more preferable, 3 million or less are more preferable, and 2 million or less are still more preferable.
The mass average molecular weight (Mw) is determined by gel permeation chromatography (using a calibration curve and a refractive index detector defined with chloroform solvent and linear polystyrene as a standard).

The cellulose derivative of component (A) is obtained by reacting a raw material cellulose derivative with an acid halide having a linear or branched alkyl group or alkenyl group having 3 to 40 carbon atoms, and 45 to 95 mol of all hydroxyl groups of the raw material cellulose derivative. Produced by replacing%.
A compound in which M is CH ₂ can be produced by reacting a cellulose derivative with a corresponding sulfonic acid ester such as alkyl halide or alkyl mesylate in the presence of a base. The main chain comprising a cellulose skeleton can also be obtained by transesterification (acidolysis) of acetylcellulose. According to this method, a cellulose ester derivative having a very low residual amount of hydroxyl groups can be obtained.

  Specifically, hydroxyethyl cellulose lauric acid ester, hydroxyethyl cellulose myristic acid ester, hydroxyethyl cellulose palmitic acid ester, hydroxyethyl cellulose stearic acid ester, hydroxyethyl cellulose behenic acid ester; hydroxypropyl cellulose lauric acid ester, hydroxypropyl cellulose myristic acid ester, hydroxy Propylcellulose palmitate, hydroxypropylcellulose stearate, hydroxypropylcellulose behenate; hydroxyethylmethylcellulose laurate, hydroxyethylmethylcellulose myristic ester, hydroxyethylmethylcellulose palmitate, hydroxyethyl Cylcellulose stearate, hydroxyethylmethylcellulose behenate; hydroxypropylmethylcellulose laurate, hydroxypropylmethylcellulose myristic acid, hydroxypropylmethylcellulose palmitate, hydroxypropylmethylcellulose stearate, hydroxypropylmethylcellulose behenate It is done. Of these, hydroxypropyl cellulose laurate, hydroxypropyl cellulose myristic acid, hydroxypropyl cellulose palmitate, hydroxypropyl cellulose stearate, and hydroxypropyl cellulose behenate are preferred, and hydroxypropyl cellulose palmitate is more preferred.

  The cellulose derivative of component (A) can be used singly or in combination of two or more, and the content forms a uniform film on the lips and skin, etc., and suppresses secondary adhesion to the cup, etc. The total composition is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, 50% by mass or less, preferably 30% by mass or less, more preferably 20% by mass or less, and 12% by mass. % Or less is more preferable. Moreover, content of a component (A) is 1-50 mass% in all the compositions, 2-30 mass% is preferable, 2-20 mass% is more preferable, 3-12 mass% is further more preferable.

Component (B) is a volatile hydrocarbon oil. Volatile has a flash point of 35-87 ° C.
The volatile hydrocarbon oil of component (B) is excellent in compatibility with component (A), and even after the volatile hydrocarbon oil has volatilized, it does not feel sticky or stiff. Examples thereof include paraffinic hydrocarbon oils such as n-decane, n-undecane and n-dodecane; isoparaffinic hydrocarbon oils such as isodecane, isododecane and hydrogenated polyisobutene; and cyclic paraffin hydrocarbon oils such as cyclodecane and cyclododecane. It is done. Among these, hydrocarbon oils having 8 to 16 carbon atoms are preferable, hydrocarbon oils having 10 to 16 carbon atoms are more preferable, and hydrocarbon oils having 12 carbon atoms are more preferable. Of these, isoparaffinic hydrocarbon oil is preferable, and isododecane and hydrogenated polyisobutene having 12 carbon atoms are more preferable.
Examples of commercially available products include Marcazole R (manufactured by Maruzen Petrochemical Co., Ltd .: flash point 48 ° C.), Pearl Ream 3 (manufactured by NOF Corporation: flash point 61 ° C.), and the like.

  Component (B) can be used alone or in combination of two or more, and the content is excellent in compatibility with components (A) and (C), and after application to lips and skin, component (B) Even after volatilization, it is not sticky or sticky, forms a uniform film on the lips, etc., and suppresses secondary adhesion to the cup, etc. 40% by mass or more, preferably 45% by mass or more, more preferably 68% by mass or more, 85% by mass or less, preferably 82% by mass or less, more preferably 80% by mass or less, and 78% by mass or less. Is more preferable. Moreover, content of a component (B) is 5-85 mass% in all the compositions, 40-82 mass% is preferable, 45-80 mass% is more preferable, 68-78 mass% is further more preferable.

The ester oil of component (C) used in the present invention is liquid at 25 ° C. The liquid state at 25 ° C. has fluidity, and includes pastes.
Such ester oils are not limited as long as they are used in ordinary cosmetics. For example, isotridecyl isononanoate, diisostearyl malate, isostearyl myristate, octyldodecyl ricinoleate, neopentyl glycol dicaprate, diisostearate Examples include diglyceryl acid, glyceryl monoisostearate, 2-ethylhexyl paramethoxycinnamate, tocopherol acetate, and diglyceryl monoisostearate.
Among these, ester oil having a branched chain is excellent in that the component (A) is excellent in compatibility and is not sticky or sticky even after the component (B) is volatilized after being applied to the lips or skin. Are preferred, isotridecyl isononanoate, diisostearyl malate, isostearyl myristate, octyldodecyl ricinoleate, diglyceryl diisostearate, glyceryl monoisostearate, 2-ethylhexyl paramethoxycinnamate, diglyceryl monoisostearate Are more preferable, and isotridecyl isononanoate and diisostearyl malate are more preferable.

  The component (C) ester oil can be used singly or in combination of two or more. The content is excellent in compatibility with the component (A), and the component (B) is volatilized after being applied to the lips or skin. Even after the coating, it is not sticky or sticky, forms a uniform film on the lips, etc., and suppresses secondary adhesion to the cup. % By mass or more, preferably 10% by mass or more, more preferably 13% by mass or more, 50% by mass or less, preferably 40% by mass or less, more preferably 32% by mass or less, and further 22% by mass or less. preferable. Moreover, content of a component (C) is 5-50 mass% in all the compositions, 7-40 mass% is preferable, 10-32 mass% is more preferable, 13-22 mass% is further more preferable.

  In the present invention, the mass ratio (A) / (C) of the component (A) with respect to the component (C) does not feel stiffness or tension at the time of application, and the lips and skin are smooth, immediately after application and for a long time. 0.03 or more from the point that secondary adhesion to the cup and the like is suppressed even after elapse of time, and it is strong against water wetting, and even when cosmetics are removed from the lips and skin, etc. Is preferably 0.05 or more, more preferably 0.1 or more, still more preferably 0.2 or more, preferably 4 or less, more preferably 3 or less, still more preferably 2 or less, and 0.8 or less Even more preferred. Moreover, 0.03-4 are preferable, as for the mass ratio (A) / (C) of the component (A) with respect to a component (C), 0.05-3 are more preferable, 0.1-2 are still more preferable, 0 2 to 0.8 is even more preferable.

  In the present invention, the mass ratio (B) / (C) of the component (B) with respect to the component (C) does not feel stiff or tight at the time of application, and the lips and skin are smooth, immediately after application and for a long time. Even after the passage, secondary adhesion to the cup or the like is suppressed, and moreover, preferably 1 or more, more preferably 2 or more, from the point of being able to cleanly remove cosmetics from the lips or skin. 3 or more is more preferable, 3.5 or more is more preferable, 11 or less is preferable, 9 or less is more preferable, 7 or less is further preferable, and 6 or less is more preferable. Moreover, 1-11 are preferable, as for the mass ratio (B) / (C) of the component (B) with respect to a component (C), 2-9 are more preferable, 3-7 are more preferable, and 3.5-6 are more. Further preferred.

  In the vinyl polymer having a carbosiloxane dendrimer structure of the component (D) used in the present invention in the side chain, the carbosiloxane dendrimer structure is preferably a group represented by the general 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 general formula (2) when i = 1.

In the formula, R ¹ is an alkyl group having 1 to 10 carbon atoms or an aryl group, R ² is an alkylene group having 2 to 10 carbon atoms, and R ³ is an alkyl group having 1 to 10 carbon atoms. , 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 a silylalkyl group represented by the general formula (2). 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, organic groups represented by the general formulas (4), (5), and (6) are 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, an ethylene 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), R ¹ is an alkyl group 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, and isobutyl. Group, cyclopentyl group, and cyclohexyl group are exemplified, and as aryl group, phenyl group and naphthyl group are exemplified. 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 general formula (2) when i = 1.

In the formula, R ¹ is an alkyl group or an aryl group having 1 to 10 carbon atoms. 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 a silylalkyl group represented by the general formula (2). 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 (D), 0-99.9 parts by mass of vinyl monomers other than (D1) and (D2), and (D2) general formula (3):

(In the formula, Y is an organic group capable of radical polymerization, R ¹ is an alkyl group or aryl group having 1 to 10 carbon atoms, and X ¹ is represented by the general formula (2) when i = 1. Silylalkyl group.)
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 as the component (D1) is not particularly limited as long as it has a radically 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 acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate; vinyl acetate, vinyl propionate, vinyl butyrate, vinyl caproate, vinyl 2-ethylhexanoate, laurin Fatty acid vinyl esters such as vinyl acid vinyl and vinyl stearate; Aromatic monomers such as len, 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 ; Tetrahydroflu Ether linkages such as ril (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; Reactive group-containing monomer such as (meth) acrylic acid glycidyl, (meth) allyl glycidyl ether, methacryloyloxyethyl isocyanate, (meth) acryloxypropyltrimethoxysilane; (meth) acrylic at one end Macromonomers such as polydimethylsiloxane containing a group, polydimethylsiloxane containing a styryl group at one end; butadiene; vinyl chloride; salt (Meth) acrylonitrile; dibutyl fumarate; maleic anhydride; radical polymerizable unsaturated monomers having sulfonic acid groups 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-methacryloxypropyltrimethylammonium chloride; tertiary amino groups such as diethylaminoethyl methacrylate Examples thereof include methacrylic acid esters of alcohol, 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, etc. Saturated group containing silicone - emission compounds and the like.

  The component (D2) 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 any organic group capable of radical reaction may be used. Specifically, in general formulas (7), (8) and (9) below, Examples include (meth) acryloxy group-containing organic groups, (meth) acrylamide group-containing organic groups, styryl group-containing organic groups, and alkenyl groups having 2 to 10 carbon atoms.

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, and 5-hexenyl group.

  In the general formula (2), when i = 1, that is, when the number of layers of the silylalkyl group is 1, the carbosiloxane dendrimer of the component (D2) is represented by the general formula (10):

(Wherein, Y, R ^1, R ² and R ³ are as defined above, but .a ¹ R ¹² is the same as the hydrogen atom or the R ¹ is the same as the a ^i, in one molecule The average total number of a ¹ is 0 to 7.)
Examples of the carboxydendrimer (D2) 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 (D1) to the component (D2) is (D1) :( D2) = 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 (D) used in the present invention is preferably 3,000 to 2,000,000 from the ease of blending as a cosmetic raw material. More preferably, it is 5,000 to 800,000. Further, the property may be any of liquid, gum, paste, solid, etc. at 25 ° C., but from the viewpoint of the durability of the resulting cosmetic film, a solid one is preferred. Further, from the viewpoint of compoundability, a solution or dispersion diluted with a solvent is preferable.

  As the vinyl polymer having a carbosiloxane dendrimer structure in the side chain, a silicone dendrimer / acrylic copolymer is preferable, FA4001CM (decamethylcyclopentasiloxane solution), FA4002ID (isododecane solution) (above, manufactured by Toray Dow Corning) ) Etc. can be used.

  The vinyl polymer of component (D) can be used singly or in combination of two or more types, and the content makes the cosmetic material evenly adhere to the lips, skin, etc., and improves the adhesion. Moreover, from the point which is excellent in water resistance, it is 0.01 mass% or more in the whole composition, 0.2 mass% or more is preferable, 0.5 mass% or more is more preferable, 25 mass% or less, 15 % By mass or less is preferable, 10% by mass or less is more preferable, and 5% by mass or less is more preferable. Moreover, content of a component (D) is 0.01-25 mass% in the whole composition, 0.2-15 mass% is preferable, 0.5-10 mass% is more preferable, 0.5- 5 mass% is more preferable.

  In the present invention, the mass ratio (A) / (D) of the component (A) to the component (D) has no unevenness during coating and is easy to finish, and even when wet, the color transfer to the cup Is preferably 0.1 or more, more preferably 0.4 or more, and even more preferably 1 or more from the viewpoint that lipstick is difficult to swell and the lipstick is more difficult to lip even after a long time. 0.5 or more is more preferable, 40 or less is preferable, 30 or less is more preferable, 20 or less is more preferable, and 12 or less is more preferable. Moreover, 0.1-40 are preferable, as for the mass ratio (A) / (D) of the component (A) with respect to a component (D), 0.4-30 are more preferable, 1-20 are more preferable, 1.5 ~ 12 is even more preferable.

Furthermore, the oily cosmetic of the present invention can contain a solid wax at 25 ° C. Solid at 25 ° C. means a solid property at 25 ° C. and a melting point of 61 ° C. or higher.
The solid wax at 25 ° C. is not limited as long as it is used in ordinary cosmetics, for example, mineral wax such as ozokerite and ceresin; petroleum wax such as paraffin and microcrystalline wax; Fischer-Tropsch wax , Synthetic hydrocarbons such as polyethylene wax; plant waxes such as carnauba wax, candelilla wax, rice wax, tree wax, sunflower wax; animal waxes such as beeswax and whale wax; synthetic waxes such as silicone wax and synthetic beeswax Is mentioned.

  A solid wax at 25 ° C. has a melting point of 65 ° C. or higher and 140 ° C. or lower, preferably 70 ° C. or higher and 90 ° C., from the viewpoint of imparting moderate hardness to oily cosmetics, suppressing oil seepage and moistening. The following is more preferable. Moreover, it is preferable not to include a wax having a melting point exceeding 90 ° C. from the viewpoint of imparting a smooth usability.

Moreover, the solid wax at 25 ° C. has a penetration of 1 or more and 150 or less at 25 ° C. from the viewpoint of imparting appropriate hardness to oily cosmetics, suppressing oil seepage and moistening. Of these, 15 or more and 110 or less are more preferable.
Here, the penetration of the wax sample kept at 25 ± 0.1 ° C. was adjusted to a specified needle (needle mass 2.5 ± 0.02 g, needle holder mass 47.5 ± 0.02 g, The weight of the weight 50 ± 0.05 g) measures the length of needle penetration for 5 seconds, and the needle penetration distance (mm) is multiplied by 10 to obtain the penetration. JIS K-2235 It is a value measured according to 5.4 (1991).

Examples of solid waxes having a penetration of 1 to 150 at 25 ° C. include mineral waxes, petroleum waxes, and synthetic hydrocarbons. Among these, microcrystalline wax and paraffin wax having a penetration of 15 or more and 110 or less are preferable, and the penetration is 15 or more from the viewpoint of suppressing dullness of the appearance color and high durability of the coating film and high performance of moisture. , 110 or less microcrystalline wax is more preferable. Moreover, it is preferable that the penetration degree in 25 degreeC is 25 or more and 80 or less microcrystalline wax.
As these waxes, commercially available products can be used. For example, as microcrystalline wax, Multiwax W-445, W-835 (above, manufactured by SONNEBORN), Paracera M (manufactured by Paramelt), Hi-Mic-1045. And 1070, 2045 (manufactured by Nippon Seiki Co., Ltd.), refined microcrystalline wax (manufactured by Nikko Rica Co., Ltd.), 155 ° microwax (manufactured by Nippon Oil Co., Ltd.) and the like.
The microcrystalline wax having a penetration of 15 or more is preferably contained in a solid wax at 25 ° C. in an amount of 50% by mass or more, and 70% by mass or more from the viewpoint of providing a smooth feeling of use and gloss when applied. More preferably.

  The wax that is solid at 25 ° C. can be used alone or in combination of two or more, and the content is less than 5% by mass in the total composition from the viewpoint of suppressing cosmetic distortion on the lips. It is preferably 3% by mass or less, more preferably 1% by mass or less, and still more preferably 0.5% by mass or less.

Furthermore, the oily cosmetic of the present invention can contain a powder. Such powder is not limited as long as it is used in ordinary cosmetics, and extender pigments, colored pigments, glitter pigments and the like can be used.
Examples of extender pigments include silicic acid, anhydrous silicic acid, magnesium silicate, talc, sericite, mica, synthetic mica, glass flake, synthetic phlogopite, kaolin, clay, bentonite, bismuth oxychloride, zirconium oxide, magnesium oxide. And inorganic pigments such as aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, and magnesium carbonate, and composite powders thereof.

  Examples of the color pigment include metal oxides such as titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, bitumen, ultramarine blue, chromium oxide, and chromium hydroxide; metal complexes such as manganese violet and cobalt titanate; In addition, inorganic pigments such as carbon black; Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228 No., Red No. 230, Red No. 401, Red No. 405, Red No. 505, Orange No. 203, Orange No. 204, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, Blue No. 404, etc. Synthetic organic pigments; natural organic dyes such as β-carotene, caramel, and paprika dyes.

As a bright pigment, the surface of a plate powder such as mica, synthetic phlogopite, glass, silica, alumina, etc. is coated with titanium oxide, iron oxide, silicon oxide, bitumen, chromium oxide, tin oxide, chromium hydroxide, gold, Film raw materials such as those coated with colorants such as silver, carmine, organic pigments, etc., and polyethylene terephthalate / polymethylmethacrylate laminate powder, polyethylene terephthalate / aluminum deposition powder, polyethylene terephthalate / gold deposition laminate powder, etc. The cut one can be used.
As these powders, those subjected to various surface treatments such as water repellency treatment, water repellency / oil repellency treatment, and the like can also be used.

  One or more kinds of powders can be used, and the content is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and preferably 20% by mass or less in the total composition. 10 mass% or less is more preferable. Moreover, 0.01-20 mass% is preferable in the whole composition, and, as for content of powder, 0.05-10 mass% is more preferable.

  Furthermore, the oily cosmetics of the present invention include, in addition to the above components, components used in ordinary cosmetics, for example, oily components other than components (B) and (C), surfactants, lower alcohols, polyhydric alcohols, Polymer components other than components (A) and (D), ultraviolet absorbers, antioxidants, dyes, fragrances, coloring materials, antifouling agents, moisturizing agents, water and the like can be contained.

  The oily cosmetic of the present invention can be produced by a usual method, and the dosage form may be any of solid, semi-solid, gel, liquid and the like.

  The oily cosmetic of the present invention is a cosmetic having an oil agent as a continuous phase, and is used for skin, lips, eyelashes, nails and hair, and preferably used for lips. Lip cosmetics such as lipstick, lip gloss, lip liner; makeup cosmetics such as mascara, eyeliner, eye shadow, teak color, foundation, concealer; cream, milky lotion, essence, massage agent, deodorant, sunscreen, hair growth It can be an agent, hair color, hair wax, hair foam, and the like. Especially, it is suitable as lip cosmetics selected from lipstick, lip gloss, and lip liner.

  When the oily cosmetic of the present invention is used as a lip cosmetic, it is preferably in the form of being stored in a container to be taken out with a cosmetic application tool, and the container to be taken out is more preferably a bottle container, a jar container, or a tube container. From the viewpoint of suppressing dripping during use, a bottle container and a tube container are more preferable.

  A cosmetic application tool for taking out lip cosmetics has an application surface for applying cosmetics, and has a support shaft that connects the application part to the tip. Specific examples include a chip, a sponge, a puff, and a brush. Among these, a cosmetic application tool having an application surface for applying cosmetics and having an application part made of a flat body and a support shaft having the application part connected to the tip is used in the initial use. It is preferable from the viewpoint of easy removal to the applicator and ease of application to the lips.

  The lip cosmetic is in a form accommodated in a cosmetic container provided with a cosmetic application tool for taking out, so that it can be easily taken into the application tool from the initial use. In particular, a dipping container in which the cosmetic applicator is applied to the cosmetic is more preferable because there is little residual cosmetic remaining in the container after use.

Production Example 1 (Production of cellulose derivative 1)
94 g (1.01 mol) of 3-methylpyridine was dissolved in 57.8 g (0.165 mol) of hydroxypropylcellulose (Celney M; manufactured by Nippon Soda Co., Ltd.) in a mixed solvent of toluene and methyl ethyl ketone under nitrogen at 50 ° C. Let 85.1 g (0.31 mol) of palmitoyl chloride is added dropwise over 0.5 hours. Thereafter, the mixture was reacted at 50 ° C. for 5 hours, precipitated in ethanol, purified and dried to obtain hydroxypropyl cellulose palmitate. (Mass average molecular weight 1,500,000, average acyl substitution degree is 60 mol% of all hydroxyl groups)

(Measurement of mass average molecular weight)
The average molecular weight (Mw) of the polymer was measured by gel permeation chromatography (GPC) using Hitachi L-6000 type high performance liquid chromatography. The eluent flow path pump was Hitachi L-6000, the detector was a Shodex RI SE-61 differential refractive index detector, and the column was a GMHHR-H double connected. The sample was adjusted to a concentration of 0.5 g / 100 mL with an eluent, and 20 μL was used. As the eluent, a chloroform solution of 1 mmol / L N, N-dimethyldodecylamine (Farmin DM20, manufactured by Kao Corporation) was used. The column temperature was 40 ° C. and the flow rate was 1.0 mL / min.

(Measurement of average acyl (ester) substitution degree)
In H-NMR, the proton of the methine group adjacent to the carbonyl group of the esterified cellulose appears in the vicinity of 5 ppm, and the total of the proton adjacent to the 6-membered ring oxygen of cellulose and the methylene group adjacent to the hydroxyl group of cellulose is 3 Appears around 5 ppm. It was calculated from the integrated value.

Production Example 2 (Production of cellulose derivative 2)
232.8 g (2.5 mol) of 3-methylpyridine was added to 57.8 g (0.165 mol) of hydroxypropyl cellulose (Selney M; manufactured by Nippon Soda Co., Ltd.) in a mixed solvent of toluene and methyl ethyl ketone under nitrogen at 50 ° C. To dissolve. 300.0 g (1.09 mol) of palmitoyl chloride is added dropwise over 0.5 hours. Thereafter, the mixture was reacted at 50 ° C. for 5 hours, precipitated in ethanol, purified and dried to obtain hydroxypropyl cellulose palmitate. (Mass average molecular weight 870,000, average acyl substitution degree is 90 mol% of all hydroxyl groups)

Examples 1-9, Comparative Examples 1-2
Liquid lipsticks having the compositions shown in Table 1 were produced. Apply the resulting liquid lipstick to the lips, ease of finishing (no unevenness of application), no wrinkle immediately after application, 10 minutes after application, smoothness when the lips are rubbed together, water resistance after 10 minutes application ( The difficulty of color transfer to the cup and the difficulty of dripping the entire lip), 4 hours after application, the lipstick was more difficult to remove and the lipstick was more easily removed near the lip contour. These evaluations were performed by applying a liquid lipstick to the lips under a high humidity environment (relative humidity 50 to 100%).
The results are also shown in Table 1.

(Production method)
The base material (other than the color material) was dissolved by heating at 90 ° C. for 30 minutes and uniformly mixed with a disper. Next, the coloring material raw material was added, and the mixture was further uniformly mixed for 15 minutes, defoamed, poured into a transparent dipping container, cooled and solidified, and a liquid lipstick was obtained.

(Evaluation method)
(1) Ease of finishing (non-uniform coating):
By 10 professional panelists, each liquid lipstick was applied to the lips, and the non-uniformity of the coating immediately after application was sensory evaluated. The results are shown by the number of panelists evaluated as good (no unevenness).

(2) No wrinkle immediately after application:
Each liquid lipstick was applied to the lips by 10 specialist panelists, and sensory evaluation was performed for the absence of stiffness after 5 minutes. The results are shown in terms of the number of panelists evaluated as being good (no stiffness).

(3) Smoothness when the lips are rubbed 10 minutes after application:
By 10 professional panelists, each liquid lipstick was applied to the lips, and after 10 minutes, the smoothness when the lips were rubbed was subjected to sensory evaluation. The results were expressed as the number of panelists rated as good (smooth).

(4) Water resistance 10 minutes after application (hardness of color transfer to the cup):
Ten professional panelists applied each liquid lipstick to the lips, and after 10 minutes, drank water in a cup containing 20 ° C. water, and sensory-evaluated the difficulty of color transfer to the cup. The results are shown in terms of the number of panelists evaluated as being good (hard to transfer).

(5) Water resistance 10 minutes after application (hardness of the entire lip):
Ten professional panelists applied each liquid lipstick to the lips, and after 10 minutes, when drinking water in a cup containing 20 ° C. water, sensory evaluation was made of the lipstick's irritability on the entire lips. The results are shown in terms of the number of panelists evaluated as being good (hard to twist).

(6) Four hours after application, the lipstick is more difficult near the lip contour:
Ten professional panelists applied each liquid lipstick to the lips, and after 4 hours, sensory evaluation was conducted to determine whether the lipstick was in the vicinity of the lip contour. The results are shown as the number of panelists evaluated as good (not good).

(7) Ease of dropping lipstick:
Ten specialist panelists applied each liquid lipstick to the lips, and after 4 hours, the lipstick was removed with a makeup remover (Biore makeup remover, only cotton, moisturized rich) and sensory evaluated. The results are shown in terms of the number of panelists evaluated as being good (can be cleaned cleanly).

Example 10
In the same manner as in Examples 1 to 9, liquid lipsticks having the compositions shown in Table 2 were produced.
The obtained liquid lipstick has no uneven coating when applied to the lips in a high humidity environment (relative humidity 50-100%), is easy to finish, does not wrinkle immediately after application, and 10 minutes after application, Smooth when rubbed, excellent in water resistance after 10 minutes of application (difficulty in color transfer to the cup, the difficulty of dripping the entire lip), and after 4 hours of application, lipstick is less likely to be near the lip contour, Lipstick was easy to remove.

Claims (7)

The following components (A), (B), (C) and (D):
(A) It has a cellulose skeleton in the main chain, and 45 to 95 mol% of all hydroxyl groups are groups —O—M—R (M represents CH ₂ or a carbonyl group C═O, and R represents a straight chain having 3 to 40 carbon atoms. 1 to 50% by mass of a cellulose derivative substituted with a chain or branched chain alkyl group or alkenyl group)
(B) 5 to 85% by mass of volatile hydrocarbon oil,
(C) 5 to 50% by mass of an ester oil that is liquid at 25 ° C.
(D) A vinyl polymer having a carbosiloxane dendrimer structure in the side chain 0.01 to 25% by mass
Containing oily cosmetics.   2. The oily cosmetic according to claim 1, wherein in component (A), R is a linear or branched alkyl group or alkenyl group having 9 to 21 carbon atoms. In component (D), the carbosiloxane dendrimer structure has the general formula (1)

{In the formula, Z is a divalent organic group, p is 0 or 1, and R ¹ is an alkyl group or an aryl group having 1 to 10 carbon atoms. X ¹ is a silylalkyl group represented by the general formula (2) when i = 1.

(In the formula, R ¹ is an alkyl group having 1 to 10 carbon atoms or an aryl group, R ² is an alkylene group having 2 to 10 carbon atoms, and R ³ is an alkyl group having 1 to 10 carbon atoms. 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 a silylalkyl group represented by the general formula (2), where i is the silylalkyl. It is an integer from 1 to 10 indicating the group hierarchy, and a ⁱ is an integer from 0 to 3.)}
The oily cosmetic according to claim 1, wherein the oily cosmetic is a group represented by the formula: Component (D) vinyl polymer is (D1) 0-99.9 parts by weight of vinyl monomer and (D2) general formula (3):

{Wherein Y is an organic group capable of radical polymerization, R ¹ is an alkyl group or aryl group having 1 to 10 carbon atoms, and X ¹ is represented by the general formula (2) where i = 1. A silylalkyl group.

(In the formula, R ¹ is an alkyl group having 1 to 10 carbon atoms or an aryl group, R ² is an alkylene group having 2 to 10 carbon atoms, and R ³ is an alkyl group having 1 to 10 carbon atoms. 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 a silylalkyl group represented by the general formula (2), where i is the silylalkyl. It is an integer from 1 to 10 indicating the group hierarchy, and a ⁱ is an integer from 0 to 3.)}
The oily cosmetic according to any one of claims 1 to 3, which is obtained by polymerizing 100 to 0.1 parts by mass of a carbosiloxane dendrimer having an organic group capable of radical polymerization represented by:   The oily cosmetic according to any one of claims 1 to 4, wherein the mass ratio (A) / (D) of the component (A) to the component (D) is 0.1 to 40.   The oily cosmetic according to any one of claims 1 to 5, wherein the mass ratio (B) / (C) of the component (B) to the component (C) is 1 to 11.   The oily cosmetic according to any one of claims 1 to 6, which is a lip cosmetic.