Oily cosmetic

Abstract

To provide an oily cosmetic having superior ability to give moisturized sensation and smoothness to hair, and also having superior spreadability and hair setting ability.SOLUTION: An oily cosmetic comprising the following components (A) to (C): (A) an oil-soluble polyurethane, (B) glyceryl behenate / eicosanedioate and / or glyceryl tribehenate / isostearate / eicosanedioate, and (C) a liquid oil.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an oily cosmetic preparation. [Background technology]

[0002] Oil-based hair cosmetics are widely used because they are excellent at imparting moisture and smoothness to hair. However, because hair oil is liquid, it has usability issues, such as dripping from the hands when applied to hair. On the other hand, solid hair balms do not drip and are excellent at imparting moisture and smoothness to hair, but because they are solid, they have the issue of being difficult to spread when applied to hair. To solve these issues, technologies related to gel-type oil-based hair cosmetics have been disclosed.

[0003] For example, Patent Document 1 proposes an oil-based styling cosmetic containing a higher fatty acid ester and an oligomer ester in order to provide an oil-based styling cosmetic that spreads easily with fingertips and has excellent hair style retention. Furthermore, Patent Document 2 proposes a cosmetic transparent gel preparation that contains a specific esterification reaction product, 12-hydroxystearic acid, and an oil component, in order to provide a cosmetic transparent gel preparation that is excellent in transparency and ease of use. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-117691 [Patent Document 2] WO2010 / 029769 Pamphlet Summary of the Invention [Problem to be solved by the invention]

[0005] However, the oily styling cosmetic of Patent Document 1 causes a squeaky feeling when applied to hair, and is insufficient in terms of hair smoothness. Furthermore, the transparent gel cosmetic preparation of Patent Document 2 was insufficient in terms of ease of spreading and hair setting power. Therefore, a main object of the present invention is to provide an oil-based cosmetic composition that provides excellent moisturizing and smoothness to hair, and also has excellent spreadability and setting power. [Means for solving the problem]

[0006] As a result of extensive research, the present inventors have found that an oil-based cosmetic composition containing an oil-soluble polyurethane in combination with glyceryl (behenate / eicosanedioate) and / or glyceryl tri(behenate / isostearate / eicosanedioate) provides significantly superior moisturizing and smoothness to hair, and also has excellent spreadability and setting power.

[0007] That is, the present invention is as described below. [1] The following components (A) to (C); (A) Oil-soluble polyurethane (B) Glyceryl behenate / eicosanedioate and / or glyceryl tribehenate / isostearate / eicosanedioate (C) Liquid oil The present invention provides an oily cosmetic containing the above. [2] The oil-based cosmetic preparation according to [1] is provided, wherein the component (A) is a polyurethane having (a1) a hydrophobic portion and (a2) a hydrophilic portion, wherein the (a1) hydrophobic portion contains a structural unit derived from an isocyanate compound, and the (a2) hydrophilic portion contains a structural unit derived from a low-molecular-weight diol. [3] The oil-based cosmetic according to [2], wherein the isocyanate compound is hexamethylene diisocyanate. [4] The oil-based cosmetic according to [1] or [2], wherein the mass ratio (A) / (B) of the component (A) to the component (B) is 0.04 to 0.4. [5] The oil-based cosmetic according to [1] or [2], which has a viscosity at 30°C of 1,000 to 50,000 mPa·s. [6] The oily cosmetic composition according to [1] or [2] is a hair cosmetic composition. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide an oil-based cosmetic composition that is excellent in ease of spreadability, moisturizing feeling of hair, hair setting power, and smoothness of hair. DETAILED DESCRIPTION OF THE INVENTION

[0009] Preferred embodiments of the present invention will be described in detail. However, the present invention is not limited to the following preferred embodiments and can be freely modified within the scope of the present invention. In this specification, percentages are expressed by mass unless otherwise specified. In addition, in this specification, when a numerical range is expressed using "to", the range includes both end values. Furthermore, the upper limit (less than or equal to) and the lower limit (more than or equal to) of each numerical range (to) can be arbitrarily combined as desired.

[0010] The oil-soluble polyurethane (A) used in the present invention can be any polyurethane that is soluble in an oily component, but is preferably one that is soluble in at least 1% of cetyl 2-ethylhexanoate at 30° C. The structure of the oil-soluble polyurethane is not particularly limited, but from the viewpoints of ease of spreading, hair setting power, and moisturizing feeling of hair, it is preferable that the polyurethane has a hydrophobic portion (a1) and a hydrophilic portion (a2).

[0011] The (a1) hydrophobic portion preferably contains a structural unit derived from an isocyanate compound. Examples of the isocyanate compound include 1,6-hexamethylene diisocyanate, 1,3-bis(isocyanatomethyl)benzene, 1,3-bis(isocyanatomethyl)cyclohexane, 2,4-toluene diisocyanate, and 2,6-toluene diisocyanate. Among these, 1,6-hexamethylene diisocyanate is preferred from the viewpoints of ease of spreading, hair setting power, and moisturizing feeling of hair.

[0012] Furthermore, from the viewpoint of ease of spreading, hair setting power, etc., it is preferable that the (a1) hydrophobic portion further contains a structural unit derived from a hydrogenated polyolefin polyol. Examples of hydrogenated polyolefin polyols include hydrogenated polybutadiene polyols and hydrogenated polyisoprene polyols, and among these, hydrogenated polybutadiene diols are preferred.

[0013] From the viewpoints of ease of spreading, hair setting power, etc., it is preferable that the (a1) hydrophobic portion further contains a structural unit derived from a dimer diol. Examples of dimer diols include dimer dilinoleyl alcohol and dimer dioleyl alcohol, with dimer dilinoleyl alcohol being preferred, and hydrogenated dimer dilinoleyl alcohol being particularly preferred.

[0014] The (a2) hydrophilic moiety preferably contains a structural unit derived from a low molecular weight diol from the viewpoints of hair setting power, moisturizing feeling of hair, etc. Examples of low molecular weight diols include ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, and diethylene glycol, with ethylene glycol and 1,4-butylene glycol being preferred.

[0015] Suitable embodiments of the oil-soluble polyurethane as component (A) include the following (i) and (ii): In this specification, "terminal" means "both terminals". (i) (a) Hydrogenated polybutadiene with isocyanate groups at the ends and (b) HO-R 3 -OH(in the formula, R 3 represents a linear or branched C2-C6 alkylene group which may have an ether bond), (ii) (c) Hydrogenated polybutadiene having terminal hydroxyl groups, (d) Diisocyanate compound, and (b) HO-R 3 -OH(R in the formula 3 represents a linear or branched C2-C6 alkylene group which may have an ether bond),

[0016] (a) is not particularly limited as long as it is a hydrogenated polybutadiene having an isocyanate group at its terminal, for example, a compound represented by the following general formula (1):

[0017] [ka]

[0018] (In the formula, R 1 , R 2 are each independently a C1-C6 alkylene group, n is an integer of 10 to 100, and n1 and n2 each independently represent 0 or 1.

[0019] R 1 , R 2 are each independently the same or different and represent a C1 to C6 alkylene group, and the alkylene may be linear or branched. Examples of the C1 to C6 alkylene group include methylene, ethylene, n-propylene, n-butylene, n-pentylene, and n-hexylene. R 1 The alkylene group in R is preferably a C1 to C2 alkylene group. 2 The alkylene group is preferably a C5 to C6 alkylene group. The alkylene group is preferably linear. n represents an integer of 10 to 100, and more preferably, n is in the range of 15 to 55. n1 and n2 are each independently the same or different and represent 0 or 1.

[0020] There are various types of structures of the repeating unit "C4H8" in the hydrogenated polybutadiene portion (general formula (6) below) of general formula (1), as shown in the following general formulas (7a) to (7d).

[0021] [ka]

[0022] [ka]

[0023] The hydrogenated polybutadiene portion in the hydrogenated polybutadiene having an isocyanate group at its terminal may consist of only one type of repeating unit as exemplified above, or may contain two or more types of repeating units arranged regularly or randomly. The three-dimensional structures of the repeating units "C4H8" constituting the hydrogenated polybutadiene portion (general formula (6) above) of general formula (1) may be the same or different, and all structures of the hydrogenated polybutadiene portion represented by general formula (6) are encompassed by the present invention. An example of the hydrogenated polybutadiene having an isocyanate group at its terminal, represented by general formula (1), is a compound represented by the following general formula (2).

[0024] [ka]

[0025] (wherein, in the formula (2), n represents an integer of 10 to 100). The compound of general formula (2) is a hydrogenated polybutadiene having an isocyanate group at the end of the general formula (1), 1 is an ethylene group, R 2 corresponds to the case where n1=n2=1, where n1 is a hexamethylene group.

[0026] (b) HO-R 3 -OH(in the formula, R 3 represents a linear or branched C2 to C6 alkylene group which may have an ether bond), examples of the glycol represented by the formula (1) include ethylene glycol (HOCH2CH2OH), propylene glycol (HOCH2CH(OH)CH3), 1,3-butylene glycol (HOCH2CH2CH(OH)CH3), 1,4-butylene glycol (HOCH2CH2CH2CH2OH), and diethylene glycol (HOCH2CH2OCH2CH2OH, general formula (5) below).

[0027] [ka]

[0028] (c) Hydrogenated polybutadiene having terminal hydroxyl groups is not particularly limited, but examples thereof include compounds represented by the following general formula (3).

[0029] [ka]

[0030] (wherein n represents an integer of 10 to 100)

[0031] In the general formula (3), the hydrogenated polybutadiene moiety (general formula (6)) has the same meaning as above.

[0032] (d) Examples of diisocyanate compounds include 1,6-hexamethylene diisocyanate, 1,3-bis(isocyanatomethyl)benzene, 1,3-bis(isocyanatomethyl)cyclohexane, 2,4-toluene diisocyanate, and 2,6-toluene diisocyanate. Among these, 1,6-hexamethylene diisocyanate represented by the following general formula (4) is preferred.

[0033] [ka]

[0034] (i): When producing a polyurethane by polyaddition of (a) a hydrogenated polybutadiene having an isocyanate group at its terminal with (b) a glycol represented by HO-R3-OH (where R3 represents a linear or branched C2-C6 alkylene group optionally having an ether bond), the molar ratio of (a):(b) is preferably 1:4 to 4:1, more preferably 2:3 to 3:2, even more preferably 4:5 to 4:3, and still more preferably 9:10 to 10:9. In this case, the weight-average molecular weight (Mw) of (a) is preferably 1,000 to 3,000.

[0035] (ii) When a polyurethane is produced by reacting (c) a hydrogenated polybutadiene having terminal hydroxyl groups, (d) a diisocyanate compound, and (b) a glycol represented by HO-R3-OH (wherein R3 represents a linear or branched C2-C6 alkylene group which may have an ether bond), the molar ratio of (c):(b) is preferably 1:4 to 4:1, more preferably 2:3 to 3:2, even more preferably 4:5 to 4:3, and still more preferably 9:10 to 10:9.

[0036] The weight average molecular weight (Mw) of the polyurethane obtained in (i) or (ii) is preferably 10,000 to 150,000, more preferably 15,000 to 130,000, and even more preferably 20,000 to 110,000.

[0037] Specific examples of component (A) include polyurethane-79, (HDI / trimethylolhexyl lactone) crosspolymer, (hydrogenated polybutadiene / glycol / HDI) copolymer, and the like.

[0038] Examples of commercially available products of component (A) include Oilkemia 5S polymer (manufactured by Rubrizol, INCI name: tri(caprylic / capric)glyceryl, polyurethane-79) and Oilkemia 5S CC polymer (manufactured by Rubrizol, INCI name: tri(caprylic / capric)glyceryl, hydrogenated polyolefin (C6-20), (HDI / trimethylolhexyllactone) crosspolymer).

[0039] The component (A) used in the present invention is not particularly limited, but from the viewpoint of ease of spreading, etc., a (HDI / trimethylolhexyllactone) crosspolymer or a (hydrogenated polybutadiene / glycol / HDI) copolymer is preferred, and a (HDI / trimethylolhexyllactone) crosspolymer is more preferred.

[0040] The content of component (A) used in the present invention is not particularly limited, but the lower limit, calculated as a pure content, of the total amount of the oil-based cosmetic is preferably 0.04% by mass (hereinafter referred to as %) or more, more preferably 0.08% or more, and even more preferably 0.12% or more. The upper limit is preferably 0.4% or less, more preferably 0.3% or less, and even more preferably 0.2% or less. The range is preferably 0.04 to 0.4%, more preferably 0.08 to 0.3%, and even more preferably 0.12 to 0.2%. This range is preferable in terms of ease of spreading and hair setting power.

[0041] Component (B) used in the present invention is glyceryl (behenate / eicosandioate) and / or glyceryl tri(behenate / isostearate / eicosandioate). Glyceryl behenate / eicosandioate is an ester of glycerin and a mixed fatty acid consisting of behenic acid and eicosandioic acid, while glyceryl tri(behenate / isostearate / eicosandioate) is a triester of glycerin and a mixture of behenic acid, isostearic acid, and eicosandioic acid. Commercially available products include Nomcort HK-G as glyceryl (behenate / eicosandioate) and Nomcort SG as glyceryl tri(behenate / isostearate / eicosandioate) (both manufactured by Nisshin Oillio Group, Ltd.). Component (B) used in the present invention is not particularly limited, but glyceryl (behenate / eicosandioate) is preferred from the standpoints of hair setting power, hair smoothness, etc.

[0042] The content of component (B) used in the present invention is not particularly limited, but the lower limit is preferably 0.3% or more, more preferably 0.5% or more, and even more preferably 1% or more, based on the total amount of the oil-based cosmetic. The upper limit is preferably 4% or less, more preferably 2% or less, and even more preferably 1.5% or less. The range is preferably 0.3 to 4%, more preferably 0.5 to 2%, and even more preferably 1 to 1.5%. This range is more preferable in terms of ease of spreadability and moisturized feeling of hair.

[0043] In the present invention, the mass ratio (A) / (B) of the component (A) to the component (B) is not particularly limited, but the lower limit is preferably 0.04 or more, more preferably 0.08 or more, and even more preferably 0.12 or more. The upper limit is preferably 0.4 or less, more preferably 0.25 or less, and even more preferably 0.2 or less. The range is preferably 0.04 to 0.4, more preferably 0.08 to 0.25, and even more preferably 0.12 to 0.2. This range is preferable in terms of ease of spreadability, hair setting power, moisturized feeling of hair, and smoothness of hair.

[0044] In the present invention, the total content of the component (A) and the component (B), (A) + (B), is not particularly limited, but the lower limit is preferably 1% or more, more preferably 1.1% or more, and even more preferably 1.2% or more, relative to the total amount of the oil-based cosmetic. The upper limit is preferably 2.5% or less, more preferably 2.2% or less, and even more preferably 2% or less. The range is preferably 1 to 2.5%, more preferably 1.1 to 2.2%, and even more preferably 1.2 to 2%. This range is preferable in terms of ease of spreading, hair setting power, etc.

[0045] The liquid oil (component (C)) used in the present invention refers to an oil agent that has fluidity at 25°C, and is not particularly limited as long as it is one that is commonly used in cosmetics, etc. Examples include hydrocarbons, fats and oils, ester oils, higher alcohols, silicone oils, fluorine-containing oils, lanolin derivatives, etc., regardless of whether they are volatile or non-volatile, and regardless of their origin, such as animal oil, vegetable oil, or synthetic oil.

[0046] Specific examples of the component (C) liquid oil include hydrocarbon oils such as isododecane, isohexadecane, light liquid isoparaffin, liquid paraffin, heavy liquid isoparaffin, α-olefin oligomer, squalane, polyisobutylene, and polybutene; vegetable oils such as olive oil, castor oil, mink oil, macadamia nut oil, avocado oil, medusa oil, and rice bran oil;Jojoba oil, diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol di-2-ethylhexanoate, neopentyl glycol di-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl 2-ethylhexanoate, oleyl oleate, octyldodecyl oleate oleate, decyl oleate, neopentyl glycol dicaprate, propylene glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, dipentaerythritol fatty acid esters, isononyl isononanoate, isotope isononanoate Decyl myristate, isopropyl myristate, isopropyl palmitate, 2-octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, 2-ethylhexyl methoxycinnamate, diisostearyl malate, glyceryl tri-2-ethylhexanoate, glyceryl tri(caprylate / caprate), glyceryl tricaprate, glyceryl triisostearate, diglyceryl diisostearate, diglyceryl triisostearate Ester oils such as ceryl, diglyceryl tetraisostearate, decaglyceryl decaisostearate, glyceryl triisopalmitate, glyceryl trimyristate, diglyceryl myristate isostearate, tritridecyl trimellitate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, and N-lauroyl-L-glutamic acid di(phytostearyl-2-octyldodecyl)ester; higher alcohols such as oleyl alcohol, isostearyl alcohol, octyldodecanol, and decyltetradecanol;Examples of the oil include silicone oils such as low-polymerization dimethylpolysiloxane, high-polymerization dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, and fluorine-modified organopolysiloxane; fluorine-based oils such as perfluorodecane, perfluorooctane, and perfluoropolyether; and lanolin derivatives such as lanolin acetate, lanolin fatty acid isopropyl, and lanolin alcohol. Component (C) can be used by appropriately selecting one or more of these.

[0047] Component (C) used in the present invention is not particularly limited, but from the viewpoint of moisturizing the hair, it preferably contains at least vegetable oil, more preferably vegetable oil and hydrocarbon oil, and even more preferably vegetable oil, hydrocarbon oil, and ester oil (excluding vegetable oil). In the present invention, the vegetable oil content in component (C) is preferably 50% or more.

[0048] Furthermore, if the oil-based cosmetic of the present invention contains a silicone oil having a polysiloxane skeleton, it may feel squeaky and may not feel as smooth, so the content of silicone oil is preferably less than 20% of the total amount of the oil-based cosmetic, more preferably less than 10%, and even more preferably less than 2%.

[0049] The content of component (C) used in the present invention, based on the total amount of the oil-based cosmetic, is preferably 50% or more, more preferably 70% or more, and even more preferably 90% or more. The upper limit is preferably 99.5% or less, more preferably 99% or less. The range is preferably 50 to 99.5%, more preferably 70 to 99%, and even more preferably 90 to 99%. This range is more preferable in terms of the moisturizing feel of hair, etc.

[0050] The oil-based cosmetic of the present invention has an oily component as the continuous phase, and does not contain water, or if it does contain water, the amount is less than 1%. It is preferably in an anhydrous form, and in addition to the above-mentioned components (A) to (C), the oil-based cosmetic of the present invention may contain, as appropriate, ingredients commonly used in cosmetics, such as oily components, powders, surfactants for powder dispersion and for adjusting texture, UV absorbers, moisturizers, anti-fading agents, antioxidants, anti-foaming agents, cosmetic ingredients, preservatives, fragrances, etc., within the range that does not impair the effects of the present invention.

[0051] Oily components that can be contained in the oily cosmetic of the present invention include, regardless of their origin, animal oil, vegetable oil, synthetic oil, etc., solid oils and semi-solid oils such as higher alcohols, fluorine-based oils, and oily gelling agents. Specific examples include higher alcohols such as stearyl alcohol, cetyl alcohol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, and behenyl alcohol, silicones such as decamethylcyclopentasiloxane and fluorine-modified organopolysiloxane, fluorine-based oils such as perfluorodecane, perfluorooctane, and perfluoropolyether, and oily gelling agents such as starch fatty acid esters, 12-hydroxystearic acid, and calcium stearate.

[0052] Powders that can be contained in the oil-based cosmetic of the present invention are not particularly limited by shape (e.g., spherical, plate-like, spindle-like, needle-like), particle size (e.g., fine particles, pigment-grade), particle structure (e.g., porous, non-porous), etc., and include inorganic powders, organic powders, composite powders, etc., and one or more of these can be used. Furthermore, one or more of these powders may be used as composites, or they may be surface-treated by known methods using triethoxyalkylsilane treatment agents, organic titanate treatment agents, silicone treatment agents, metal soaps, surfactants, oils, hydrocarbons, etc.

[0053] As the surfactant that can be contained in the oil-based cosmetic composition of the present invention, any surfactant that is generally used in cosmetics can be used, and examples thereof include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants.

[0054] Examples of ultraviolet absorbers that can be contained in the oil-based cosmetic composition of the present invention include ethylhexyl methoxycinnamate, ethylhexyl salicylate, dimethyldiethylbenzalmalonate, diethylaminohydroxybenzoylhexylbenzoate, methylenebisbenzotriazolyltetramethylbutylphenol, 2,4-bis{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino] ... Examples of moisturizing agents include polyhydric alcohols, proteins, mucopolysaccharides, collagen, elastin, and keratin; examples of antioxidants include α-tocopherol and ascorbic acid; examples of cosmetic ingredients include vitamins, anti-inflammatory agents, and herbal medicines; and examples of preservatives include parahydroxybenzoic acid esters, phenoxyethanol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, and ethylhexylglycerin.

[0055] The oily cosmetic of the present invention can be produced by conventional methods and can be in the form of a gel, multi-layered hair oil, pomade, or tack, and can also be in the form of a mist, hair spray, or foam aerosol depending on the container used. For example, it can be obtained by heating and mixing components (A) to (C). Specifically, a gel form is preferred.

[0056] The viscosity of the oil-based cosmetic of the present invention was measured using a Brookfield rotational viscometer after storing the prepared oil-based cosmetic for one day at 30°C. There are no particular restrictions on the viscosity of the oil-based cosmetic of the present invention, but a viscosity of 1,000 to 50,000 mPa s at 30°C is preferred in terms of excellent spreadability.

[0057] The oil-based cosmetic of the present invention is not particularly limited and can be used in skin care cosmetics such as cosmetic oils, cleansing cosmetics such as makeup cleansers, hair cosmetics such as hair oils and hair styling products, and makeup cosmetics such as lip cosmetics such as lip glosses. In particular, the oil-based cosmetic of the present invention is suitable for use in oil-based cosmetics that are highly effective in spreading easily, providing hair with a moisturizing feeling, and making hair smooth, and is particularly suitable for use in hair cosmetics.

[0058] The present invention can also employ the following configuration. [1] The following components (A) to (C): (A) Oil-soluble polyurethane (B) Glyceryl behenate / eicosanedioate and / or glyceryl tribehenate / isostearate / eicosanedioate (C) Liquid oil It is an oily cosmetic containing [2] The oil-based cosmetic preparation according to [1], wherein the component (A) is a polyurethane having (a1) a hydrophobic portion and (a2) a hydrophilic portion, wherein the (a1) hydrophobic portion contains a structural unit derived from an isocyanate compound, and the (a2) hydrophilic portion contains a structural unit derived from a low-molecular-weight diol. [3] The oil-based cosmetic according to [2], wherein the isocyanate compound is hexamethylene diisocyanate. [4] The oil-based cosmetic preparation according to any one of [1] to [3], wherein the content mass ratio (A) / (B) of the component (A) to the component (B) is 0.04 to 0.4. [5] The oil-based cosmetic preparation according to any one of [1] to [3], which has a viscosity at 30°C of 1,000 to 50,000 mPa·s. [6] The oil-based cosmetic composition according to any one of [1] to [3] above is a hair cosmetic composition. [Example]

[0059] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. Examples 1 to 10 and Comparative Examples 1 to 6: Gel-type hair oil Gel-type hair oils were prepared according to the formulations shown in Table 1 below, and evaluated for ease of spreadability, hair moisture, hair setting power, and hair smoothness using the methods described below. The results are also shown in Table 1.

[0060] [Table 1] *The pure amount is given in the examples. (Note 1) OILKEMIA 5S CC POLYMER (purity 5%, manufactured by Rubrizol) (Note 2) Nomcoat HK-G (manufactured by Nisshin Oillio Group) (Note 3) Nomcoat SG (manufactured by Nisshin Oillio Group)

[0061] (Manufacturing method) A. Dissolve ingredients (1) to (12) uniformly at 90°C. The BA was cooled and filled into a container to obtain a gel-like hair oil.

[0062] (Evaluation method) The following evaluation items were evaluated by the following methods. (Evaluation item) Ease of spreading Twenty cosmetic expert evaluators evaluated the ease of spreading each gel-type hair oil when it was spread on the hand and then applied to a strand of hair. Each was rated on a 5-point scale as follows: <Evaluation criteria> (Rating): (Evaluation) 5: It doesn't drip down on your hands at all and spreads very well on hair strands. 4: Almost no dripping on the hands, and spreads well on hair strands 3: Neither 2: Slight drooping on the hands or slightly heavy spreading on hair strands 1: Drooping on the hands or difficulty spreading to hair strands <Judgment criteria> (Judgment): (Average score) ◎: Average rating is 4.5 or above - 5.0 〇: Average rating is between 3.5 and 4.5 △: Average score is between 2.5 and 3.5 ×: Average score is less than 2.5

[0063] (Evaluation item) Hair setting power Twenty cosmetic expert evaluators applied each gel-type hair oil to strands of hair that had been curled with a curling iron, and after six hours they visually evaluated the curl retention and hair setting power of each product. Each product was rated on a four-point scale as follows: <Evaluation criteria> (Score) :(Evaluation) 4: Curls are maintained 3: The curl is almost completely maintained 2: The curls are slightly stretched 1: The curls are straightened out <Judgment criteria> (Judgment): (Average score) ◎: Average rating is 3.5 or above - 4.0 〇: Average score is between 3.0 and 3.5 △: Average score is between 2.5 and 3.0 ×: Average score is less than 2.5

[0064] (Evaluation item) Moisture of hair Twenty cosmetic expert evaluators applied each gel-type hair oil to a strand of hair and conducted a sensory evaluation of the moisturizing feeling of the hair. Each was rated on a 5-point scale as follows: <Evaluation criteria> (Rating): (Evaluation) 5: Very moisturizing 4: Slightly moisturizing 3: Neither 2: Slightly lacking in moisture 1: No moisturizing feeling <Judgment criteria> (Judgment): (Average score) ◎: Average rating is 4.5 or above - 5.0 〇: Average rating is between 3.5 and 4.5 △: Average score is between 2.5 and 3.5 ×: Average score is less than 2.5

[0065] (Evaluation item) Hair smoothness Twenty cosmetic expert evaluators applied each gel-type hair oil to a strand of hair and conducted a sensory evaluation of the smoothness of the hair. Each was rated on a 5-point scale as follows: <Evaluation criteria> (Rating): (Evaluation) 5: Very smooth 4: Somewhat smooth 3: Neither 2: Somewhat unsmooth 1: Not smooth <Judgment criteria> (Judgment): (Average score) ◎: Average rating is 4.5 or above - 5.0 〇: Average rating is between 3.5 and 4.5 △: Average score is between 2.5 and 3.5 ×: Average score is less than 2.5

[0066] As is clear from the results in Table 1, the gel-type hair oils of Examples 1 to 10 of the present invention were superior in ease of spreadability, hair moisture, hair setting power, and hair smoothness compared to Comparative Examples 1 to 6. In addition, the viscosity of all of the gel-type hair oils of Examples 1 to 10 was 2,000 to 30,000 mPa s. On the other hand, in Comparative Example 1, which did not contain (B) glyceryl (behenate / eicosanedioate) and / or glyceryl tri(behenate / isostearate / eicosanedioate), the hair setting power, moisturizing feeling, and smoothness of the hair were lacking, and a satisfactory result was not obtained. Furthermore, in Comparative Example 2, which did not contain (A) oil-soluble polyurethane, satisfactory results were not obtained in terms of hair setting power, moisturized feeling of hair, and smoothness of applied hair. Furthermore, in Comparative Example 3, in which hydroxystearic acid was used instead of (B) glyceryl (behenate / eicosandioate) and / or glyceryl tri(behenate / isostearate / eicosandioate), satisfactory results were not obtained in terms of hair setting power, hair moisture feeling, and hair smoothness. In Comparative Example 4, in which dextrin (palmitate / ethylhexanoate) was used, satisfactory results were not obtained in terms of ease of spreadability, hair setting power, and hair smoothness. In Comparative Examples 5 and 6, in which other oil-based gelling agents were used, satisfactory results were not obtained in terms of ease of spreadability, hair setting power, hair moisture feeling, or hair smoothness.

[0067] Example 11: Gel-type hair oil (Component) (%) 1. Glyceryl (behenate / eicosanoate) (Note 2) 1 2. (HDI / trimethylolhexyl lactone) crosspolymer (Note 1) 0.12 3. Remaining amount of rice bran oil 4. Olive Fruit Oil 10 5. Jojoba seed oil 10 6. Triethylhexanoin 10 7. Mineral Oil 5 8. Hydrogenated polyisobutene (Note 4) 1 9. Hydrogenated polyisobutene (Note 5) 10 10. Olive fatty acid ethyl ester (Note 6) 0.1 11. Ethylhexyl methoxycinnamate (Note 7) 0.5 12. Tocopherol 0.1 13. Isostearoyl Hydrolyzed Collagen (Note 8) 0.02 14. Isostearic acid 0.1 15. BHT 0.05 16.Fragrance 0.2 (Note 4) Pearleem 18 (manufactured by NOF Corporation) (Note 5) IP Solvent 2028 (manufactured by Idemitsu Kosan Co., Ltd.) (Note 6) NIKKOL EOO (manufactured by Nikko Chemicals Co., Ltd.) (Note 7) UVINUL MC80 (manufactured by BASF) (Note 8) Promois EU-118 (IS) (manufactured by Seiwa Kasei Co., Ltd.)

[0068] (Manufacturing method) A: Heat ingredients (1) to (15) to 90°C and dissolve uniformly. B: Cool A and add ingredient (16) and mix evenly. C: B was filled into a bottle to obtain a hair oil.

[0069] The gel-type hair oil of Example 11 was excellent in spreadability, setting power, smoothness, and moisturizing feeling. The viscosity of the gel-type hair oil of Example 11 was 8,500 mPa·s.

[0070] Example 12: Gel-type hair oil (Component) (%) 1. Glyceryl (behenate / eicosanoate) (Note 2) 0.5 2. Tri(behensyl / isostearinyl / eicosyl)glyceryl (Note 3) 0.5 3. (HDI / trimethylolhexyl lactone) crosspolymer (Note 1) 0.13 4. Remaining amount of rice bran oil 5. Dimethicone (Note 9) 5 6. Dimethicone (Note 10) 1 7. Dimethiconol (Note 11) 1 8. Amodimethicone (Note 12) 0.5 7. Cyclopentasiloxane 5 8. Mineral Oil 1 9. Triethylhexanoin 10 10. Olive fatty acid ethyl ester 0.1 11. Ethylhexyl methoxycinnamate 0.5 12. Tocopherol 0.1 13. BHT 0.02 14.Fragrance 0.5 (Note 9) KF-96-100CS (Shin-Etsu Chemical Co., Ltd.) (Note 10) BY11-007 (Dow Corning Toray Co., Ltd.) (Note 11) XF49-C2497 (Shin-Etsu Chemical Co., Ltd.) (Note 12) BELSIL ADM 1650 (manufactured by Asahi Kasei Wacker Silicone Co., Ltd.)

[0071] (Manufacturing method) A: Heat ingredients (1) to (13) to 90°C and dissolve uniformly. B: Cool A, add ingredient (14) and mix evenly. C: B was filled into a bottle to obtain a gel-like hair oil.

[0072] The gel-type hair oil of Example 12 was excellent in spreadability, hair setting power, hair smoothness, and hair moisture. The viscosity of the gel-type hair oil of Example 12 was 4,500 mPa s.

[0073] Example 13: Gel cosmetic oil (Component) (%) 1. Glyceryl (behenate / eicosanoate) (Note 2) 0.8 2. (HDI / trimethylolhexyl lactone) crosspolymer (Note 1) 0.1 3. Remaining amount of rice bran oil 4. Olive Fruit Oil 10 5. Jojoba seed oil 10 6. Triethylhexanoin 10 7. Squalane 5 8. Isopropyl myristate 1 9. Ascorbyl tetrahexyldecanoate 1 10. Ceramide NG 0.01 11. Astaxanthin 0.01 12. Tocopherol 0.05 13.Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol 1 14. BHT 0.05 15.Fragrance 0.2

[0074] (Manufacturing method) A: Heat ingredients (1) to (14) to 90°C and dissolve uniformly. B: Cool A and add ingredient (15) and mix evenly. C: B was filled into a bottle to obtain a gel-type cosmetic oil.

[0075] The gel cosmetic oil of Example 13 was excellent in spreadability, smoothness, and moisturizing feeling. The viscosity of the gel cosmetic oil of Example 13 was 6,400 mPa·s.

Claims

1. The following components (A) to (C): (A) Oil-soluble polyurethane (B) Glyceryl behenate / eicosanedioate and / or glyceryl tribehenate / isostearate / eicosanedioate (C) Liquid oil An oily cosmetic containing

2. 2. The oily cosmetic according to claim 1, wherein the component (A) is a polyurethane having a hydrophobic portion (a1) and a hydrophilic portion (a2), wherein the hydrophobic portion (a1) contains a structural unit derived from an isocyanate compound, and the hydrophilic portion (a2) contains a structural unit derived from a low-molecular-weight diol.

3. 3. The oily cosmetic according to claim 2, wherein the isocyanate compound is hexamethylene diisocyanate.

4. 3. The oily cosmetic according to claim 1, wherein the mass ratio (A) / (B) of the component (A) to the component (B) is 0.04 to 0.

4.

5. 3. The oily cosmetic according to claim 1, having a viscosity at 30°C of 1,000 to 50,000 mPa·s.

6. 3. The oily cosmetic composition according to claim 1, which is a hair cosmetic composition.

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