Liquid oil components and cosmetics containing the same substance.

Abstract

DEPCT67 The current invention involves liquid oil components and similar substances. Liquid oil composition consisting of: component (A) which is an ester oil with a structure 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl in the aliphatic chain with hydroxyl values ​​within the range From 5 to 100 mg KOH / g, and is a liquid at 20 degrees Celsius; and component (B) which is a silicone oil that is compatible with component(A) in a mass ratio of 1:1 and is a fluid. 20 degrees Celsius where the mass ratio ((A) / (B)) of the amount of component (A) According to all components in relation to the quantity of component (B) according to all components. Within the range of 0.05 to 4;

Description

Liquid oily composition and cosmetic containing said composition

[0001] The present invention relates to a liquid oil-based composition that has a light feel, excellent water repellency, and excellent pigment dispersibility, and that can impart a durable cosmetic film when used as a base oil in various cosmetics, and to cosmetics containing the liquid oil-based composition. This application claims priority based on Japanese Patent Application No. 2021-146641, filed on September 9, 2021, the contents of which are incorporated herein by reference.

[0002] Cosmetics made up of oil, water, powder, etc. are required to be easy to apply to the skin, to leave a clean cosmetic film, and to maintain that film, and oils with various properties are used as ingredients to control these. However, for example, low-viscosity oils have a light feel and are easy to apply to the skin, but they are inferior in the maintenance of the cosmetic film. Conversely, high-viscosity oils are difficult to spread and can feel very sticky.

[0003] Various silicone compounds, such as silicone oil and silicone resin, are known as ingredients that provide a long-lasting cosmetic film due to their light feel and high water repellency. However, silicone compounds have drawbacks, such as poor compatibility with other cosmetic ingredients and poor pigment dispersibility, which can cause separation and pigment aggregation over time, resulting in problems such as an uneven cosmetic film finish and poor storage stability.

[0004] The use of various silicone compounds has been proposed to improve the durability of cosmetic films. For example, Patent Document 1 discloses an emulsion cosmetic that has excellent cosmetic durability, a natural luster, smooth spreadability, and excellent stability over time, using a technology that prevents makeup from breaking down due to mixing of the cosmetic film with sebum by forming a film using a film-forming silicone resin. Furthermore, Patent Document 2 discloses an emulsion cosmetic that, by blending a specific powder in addition to a film-forming silicone resin, spreads smoothly and smoothly, does not feel burdensome on the skin, maintains the cosmetic effect for a long time, and provides excellent uniformity in the cosmetic film. However, although these film-forming silicone resins spread easily and provide excellent durability of the cosmetic film, they do not sufficiently solve the problem of compatibility with other ingredients. Therefore, in order to satisfy the storage stability of the formulation, attention must be paid to the compatibility of the blended ingredients, and the dispersibility of pigments is not satisfactory. Furthermore, Patent Document 3 discloses that a monoester obtained by esterifying a branched fatty acid with a branched alcohol to improve compatibility with silicone compounds improves skin compatibility and richness in use, but this also does not provide sufficient water repellency or pigment dispersibility.

[0005] JP 2002-47129 A JP 2006-265213 A JP 2017-8000 A

[0006] In light of this background, there is a demand for a technology that has a light feel, excellent water repellency, or excellent pigment dispersibility, and that when used as a base oil in various cosmetics achieves long-lasting cosmetic film and excellent storage stability, has good color development, causes little dullness after application to the skin, or can impart water resistance.

[0007] The object of the present invention is to provide a liquid oily composition which has a light feel, excellent water repellency, or excellent pigment dispersibility, and which, when used as a base oil in various cosmetics, achieves long-lasting cosmetic film and excellent storage stability, has good color development, causes little dullness after application to the skin, or can impart water resistance, and a cosmetic containing the liquid oily composition.

[0008] After extensive research, the present inventors have discovered that a liquid oily composition obtained by mixing, in a certain mass ratio, a liquid ester compound having a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in its fatty chain and having a hydroxyl value within a certain range with a silicone oil that is liquid at 20°C and can be mixed with the liquid ester compound in a mass ratio of 1:1 to form a uniform, transparent mixture, has a light feel to the touch, excellent water repellency, or excellent pigment dispersibility, and when used as a base oil in various cosmetics, can impart excellent cosmetic film durability or excellent storage stability, or has good color development and reduces dullness after application to the skin, or can impart water resistance, thereby completing the present invention.

[0009] That is, the liquid oily composition and cosmetic preparation according to the present invention include the following aspects [1] to

[10] . [1] A liquid oily composition containing the following components (A) and (B), wherein the mass ratio ((A) / (B)) of the content of component (A) to the content of component (B) in the entire composition is 0.05 to 4. Component (A): An ester oil that is liquid at 20°C and has a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in the fatty chain and a hydroxyl value of 5 to 100 mgKOH / g. Component (B): A silicone oil that is liquid at 20°C and is miscible with component (A) in a mass ratio of 1:1. [2] The liquid oily composition of the above [1], wherein the component (A) is one or more compounds selected from the group consisting of polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) and di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl) malate. [3] The liquid oily composition of the above [1] or [2], wherein the component (B) is one or more compounds selected from the group consisting of dimethicone, diphenylsiloxyphenyl trimethicone, diphenyl dimethicone, and phenyl trimethicone. [4] The liquid oily composition of any one of the above [1] to [3], wherein the component (A) is polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) and the component (B) is dimethicone. [5] The liquid oily composition of any one of [1] to [4] above, wherein the component (B) has a viscosity of 2 to 300 mPa·s at 20°C. [6] A cosmetic comprising the liquid oily composition of any one of [1] to [5] above. [7] A cosmetic comprising the following components (A) and (B), wherein the mass ratio ((A) / (B)) of the content of component (A) to the content of component (B) in the entire cosmetic is 0.05 to 4. Component (A): An ester oil that is liquid at 20°C, having a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in the fatty chain and having a hydroxyl value of 5 to 100 mgKOH / g. Component (B): A silicone oil that is liquid at 20°C and is miscible with component (A) in a mass ratio of 1:1.[8] The cosmetic preparation of [6] or [7] above, further containing the following component (C): Component (C): Powder. [9] The cosmetic preparation of any one of [6] to [8] above, further containing the following component (D): Component (D): A volatile oil agent that is a volatile hydrocarbon and / or a volatile silicone.

[10] The cosmetic preparation of any one of [6] to [9] above, further containing components (E) and (F), and characterized in being an O / W emulsion cosmetic preparation or a W / O emulsion cosmetic preparation. Component (E): Water. Component (F): Surfactant.

[11] A water-resistance imparting agent containing the liquid oily composition of any one of [1] to [5] above as an active ingredient.

[0010] The liquid oily composition according to the present invention has a light feel, excellent water-repellent properties, or excellent pigment dispersibility, and when used as a base oil in various cosmetics, it can impart a long-lasting cosmetic film or excellent storage stability. Therefore, the liquid oily composition is particularly suitable as a raw material for makeup cosmetics, sunscreen cosmetics, and the like, which require a long-lasting cosmetic film. Furthermore, by including the liquid oily composition as one of the oily components, the cosmetic according to the present invention is a cosmetic that has a good feel in use, with excellent cosmetic film long-lasting properties, good color development, little dullness, excellent storage stability, or can be imparted with water resistance.

[0011] <Liquid Oily Composition> The liquid oily composition according to the present invention contains, as component (A), an ester oil that is liquid at 20°C and has a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in its fatty chain and a hydroxyl value of 5 to 100 mgKOH / g, and, as component (B), a silicone oil that is liquid at 20°C and is miscible with component (A) at a mass ratio of 1:1. Silicone oil has been widely known as a water-repellent material. In the present invention, the water-repellent effect is enhanced by mixing the silicone oil with a specific liquid ester oil at a specific mass ratio, and further, the respective drawbacks of the liquid ester oil and the silicone oil are overcome.

[0012] The component (A) will be described in detail below. The ester oil, which is liquid at 20°C and has a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in the fatty chain and a hydroxyl value of 5 to 100 mgKOH / g, is a compound (also called an esterified product) having an ester structure, and which has a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in at least one of the structural moieties derived from a carboxylic acid or an alcohol, and has a hydroxyl value of 5 to 100 mgKOH / g. It means an ester oil that is liquid at 20°C, and more specifically, it is an esterified product obtained by an esterification reaction between 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoic acid and a polyol having two or more hydroxyl groups in the molecule, or an esterified product obtained by an esterification reaction between 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanol and a hydroxy acid having one or more carboxylic acid groups and one or more hydroxyl groups in the molecule.

[0013] 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoic acid and 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanol are known compounds, and can be produced according to a method known per se, or commercially available products can be used.

[0014] Examples of polyols having two or more hydroxyl groups in the molecule, which are to undergo an esterification reaction with 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoic acid, include 1,2-propanediol, 1,3-propanediol, 1,3-butylene glycol, neopentyl glycol, dipropylene glycol, glycerin, diglycerin, triglycerin, tetraglycerin, pentaerythritol, and dipentaerythritol, and among these, glycerin and diglycerin are preferred.

[0015] Examples of the organic acid having one or more carboxylic acid groups and one or more hydroxyl groups in the molecule to be subjected to an esterification reaction with 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanol include lactic acid, malic acid, citric acid, glyceric acid, and tartaric acid, and among these, malic acid is preferred.

[0016] The liquid ester oil of component (A) has a hydroxyl value of 5 to 100 mgKOH / g. In this specification, the term "hydroxyl value" refers to the number of milligrams of potassium hydroxide required to neutralize the amount of acetic acid required to acetylate all hydroxyl groups in 1 g of a sample. This value can be determined, for example, by esterifying a sample with a pyridine solution of acetic anhydride and titrating the unreacted excess acetic acid with a potassium hydroxide solution. A liquid ester oil having a hydroxyl value within the above range can be obtained by conducting an esterification reaction while adjusting the molar ratio of 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoic acid to a polyol so that hydroxyl groups remain after the esterification reaction. Furthermore, when 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanol is esterified with a hydroxy acid having one or more carboxylic acid groups and one or more hydroxyl groups in the molecule, adjusting the molar ratio of the two components can also produce a liquid ester oil with a desired hydroxyl value.

[0017] The hydroxyl value of component (A) is 5 to 100 mgKOH / g, preferably 10 to 90 mgKOH / g, more preferably 20 to 80 mgKOH / g, and most preferably 30 to 60 mgKOH / g. When the hydroxyl value of component (A) is within the above range, the effects of the present invention, namely, water repellency and pigment dispersibility, are particularly excellent. When the hydroxyl value of component (A) is less than 5 mgKOH / g, the pigment dispersibility of the liquid oil-based composition may be poor. When the hydroxyl value of component (A) is greater than 100 mgKOH / g, the feel of the liquid oil-based composition may be heavy and the water repellency may be poor.

[0018] Examples of the ester oil agent of component (A) include glycerin esters such as di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)glyceryl and tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)glyceryl; polyglycerin-2 esters such as polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-2 tetra(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate); Polyglycerin-3 esters such as polyglyceryl-3 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), polyglyceryl-3 tetra(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), and polyglyceryl-3 penta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate); polyglycerin-4 esters such as polyglyceryl-4 tetra(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), polyglyceryl-4 penta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), and polyglyceryl-4 hexa(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate); Polyglycerin-5 esters such as tetra(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-5, penta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-5, hexa(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-5, and hepta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-5;Polyglycerin-6 esters such as penta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-6, hexa(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-6, hepta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-6, and octa(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-6; Polyglycerin-10 esters such as hepta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-10, octa(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-10, nona(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-10, deca(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-10, undeca(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-10, and dodeca(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate)polyglyceryl-10;

[0019] Malic acid esters such as di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl) malate; Pentaerythritol esters such as pentaerythrityl tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) and pentaerythrityl tetra(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate); and Dipentaerythritol esters such as dipentaerythrityl tetra(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), dipentaerythrityl penta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), and dipentaerythrityl hexa(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate); It is preferable that the compound is one or more compounds selected from the group consisting of:

[0020] The ester oil agent of component (A) contained in the liquid oily composition of the present invention is one or more compounds selected from the group consisting of polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), glyceryl tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), and di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl) malate. It is more preferable that the compound is one or more compounds selected from the group consisting of polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) and di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl)malate, and it is most preferable that the compound is polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate).

[0021] The ester oil of component (A) can be produced by a method known per se, or a commercially available product can be used. Examples of commercially available products that can be suitably used include Cosmol 43N (representative hydroxyl value: 40 mgKOH / g), Salacos 3318 (representative hydroxyl value: 20 mgKOH / g), Cosmol 222 (representative hydroxyl value: 80 mgKOH / g), and Salacos DP-518N (representative hydroxyl value: 30 mgKOH / g) (all manufactured by The Nisshin Oillio Group, Ltd.). Of these, one or more compounds selected from the group consisting of Cosmol 43N, Salacos 3318, and Cosmol 222 are preferred, one or more compounds selected from the group consisting of Cosmol 43N and Cosmol 222 are preferred, and Cosmol 43N is particularly preferred.

[0022] Next, component (B) will be described in detail.Silicone oil is a general term for the liquid substance that has the structure represented by the following general formula (1) (in formula (1), n ​​means polymerization degree, and is usually an integer of 3 or more, and multiple Rs that exist can be the same or different, and represent methyl group or phenyl group), and the component (B) used in the present invention has the structure of R part as methyl group or phenyl group.Generally, what is called dimethicone is that R part is bonded with methyl group, and as polymerization degree increases, viscosity increases.Therefore, each dimethicone is usually distinguished and expressed using viscosity value.

[0023]

[0024] Furthermore, the phrase "compatible with component (A) at a mass ratio of 1:1" means that when the same mass of silicone oil as the ester oil solution of component (A) is weighed into a container, heated and stirred at 80°C to homogenize it, and then left at 20°C, no separation or cloudiness is observed with the naked eye and the transparency is maintained.

[0025] As component (B) used in the present invention, any silicone oil can be used as long as it is compatible with component (A) at a mass ratio of 1:1 and is liquid at 20°C.As the silicone oil of component (B), one type may be used alone, or two or more types may be used in combination.Among them, component (B) is preferably one or more compounds selected from the group consisting of dimethicone, diphenylsiloxyphenyl trimethicone, diphenyl dimethicone, and phenyl trimethicone, particularly preferably one or more compounds selected from the group consisting of dimethicone 5cs, dimethicone 10cs, dimethicone 30cs, diphenylsiloxyphenyl trimethicone, and diphenyl dimethicone, and more preferably one or more compounds selected from the group consisting of dimethicone 5cs, dimethicone 10cs, diphenylsiloxyphenyl trimethicone, and diphenyl dimethicone. Incidentally, "cs" is a unit of viscosity expressed in CGS units, and "mPa s", which will be described later, is a unit of viscosity expressed in SI units, with 1 cs = 1 mPa s. By using a silicone oil that is liquid at 20°C and is compatible with component (A) at a mass ratio of 1:1 as component (B), excellent water repellency and excellent pigment dispersibility are achieved. If a silicone oil that is not compatible with component (A) at a mass ratio of 1:1 is used instead of component (B), the water repellency effect and pigment dispersibility effect will also be reduced.

[0026] The silicone oil used as component (B) in the present invention preferably has a viscosity at 20°C of 2 to 1000 mPa·s, more preferably 5 to 500 mPa·s, and most preferably 10 to 300 mPa·s. When the viscosity of the silicone oil of component (B) at 20°C is within the above range, the light feel and excellent water-repellent effect that are the effects of the present invention can be more fully exhibited. When the viscosity of the silicone oil of component (B) at 20°C is less than 2 mPa·s, the water-repellent effect may be reduced, and when it exceeds 1000 mPa·s, the feel may become heavy. In one aspect, the silicone oil used as component (B) has a viscosity at 20°C of 3 to 20 mPa·s, and in another aspect, the viscosity is 5 to 10 mPa·s. In another aspect, the silicone oil used as component (B) is a dimethicone having a viscosity of 3 to 20 mPa·s at 20° C., and in yet another aspect, the silicone oil used as component (B) is a dimethicone having a viscosity of 5 to 10 mPa·s at 20° C. In this specification, "viscosity" can be measured with a Brookfield viscometer.

[0027] In the liquid oily composition of the present invention, the mass ratio of the content of component (A) in the composition to the content of component (B) in the composition ([content (mass) of component (A)] / [content (mass) of component (B)]) (hereinafter sometimes referred to as the "(A) / (B) ratio") is 0.05 to 4. The (A) / (B) ratio of the liquid oily composition of the present invention is preferably 0.10 to 1.5, more preferably 0.17: to 0.7, even more preferably 0.25 to 0.45, and most preferably 0.30 to 0.40. When the (A) / (B) ratio is within the above range, the liquid oily composition has a light feel, high water repellency, and high pigment dispersibility, and when the liquid oily composition is used as one of the raw materials for cosmetics, the cosmetic film formed therefrom has good durability and good storage stability, which is preferable. On the other hand, a liquid oil-based composition containing less than the above-mentioned mass ratio range of component (A) may have a lower water-repellent effect and poor pigment dispersibility, while a liquid oil-based composition containing more than the above-mentioned mass ratio range of component (A) may have a lower water-repellent effect and a heavy feel to the touch.

[0028] The liquid oily composition according to the present invention may be a composition consisting only of component (A) and component (B), or may contain other components in addition to component (A) and component (B). When other components are contained, the ratio of the total amount of component (A) and component (B) to the total amount of the liquid oily composition according to the present invention is preferably 80% by mass or more but less than 100% by mass, and more preferably 90% by mass or more but less than 100% by mass. The other components may include additives commonly added to external skin compositions such as cosmetics (sometimes referred to herein as "cosmetically acceptable additives"), provided that the effects of the present invention are not impaired. "Cosmetically acceptable additives" refers to additives commonly added to cosmetics, and means that such additives are non-toxic and physiologically acceptable when contained in amounts typical in the cosmetic field. Examples of such additives include oily components (excluding components (A) and (B)), antioxidants, antioxidant aids, preservatives, UV absorbers, monohydric alcohols, polyhydric alcohols, water-soluble polymers, pH adjusters, inorganic salts or organic acid salts, chelating agents, vitamins, organic solvents, fragrances, various extracts, and UV scattering agents, which will be described in the "Cosmetics" section below. Specific examples will also be described later. The content of the cosmetically acceptable additives relative to the total amount of the liquid oily composition may be 0 to 20% by mass, preferably 0 to 10% by mass. The liquid oily composition can be produced by mixing components (A) and (B), and, if desired, cosmetically acceptable additives. The mixing may be carried out by simultaneously adding each component to a mixer, or by mixing the components in an appropriate order. The stirring or kneading during the mixing may be carried out by a method well known in the art. The temperature during the mixing can be set so that the temperature inside the mixer is 20 to 100°C. The liquid oily composition can be blended into cosmetics and used, for example, as a raw material for producing the cosmetics described below. That is, one aspect of the present invention is the use of the liquid oily composition for producing cosmetics, and another aspect is the use of the liquid oily composition as a cosmetic.

[0029] <Cosmetic> The cosmetic of the present invention contains component (A) and component (B) in amounts such that the (A) / (B) ratio is within the range of 0.05 to 4, and also contains other components commonly incorporated into cosmetics (sometimes referred to herein as "cosmetically acceptable additives"). That is, one embodiment of the cosmetic of the present invention comprises component (A), component (B), and cosmetically acceptable additives, and may contain component (A) and component (B) in amounts such that the (A) / (B) ratio is within the range of 0.05 to 4. Here, the cosmetically acceptable additive may have the same meaning as the "cosmetically acceptable additive" described in the section regarding the liquid oily composition. One embodiment of the cosmetic of the present invention may contain component (A) and component (B) in a total amount of 40% by mass or more but less than 100% by mass, relative to the total amount of the cosmetic, and may contain cosmetically acceptable additives in an amount greater than 0% by mass but less than 60% by mass. Another embodiment of the cosmetic of the present invention may contain a total amount of components (A) and (B) of 60% by mass or more but less than 100% by mass, relative to the total amount of the cosmetic, and may contain more than 0% by mass and 40% by mass or less of cosmetically acceptable additives. Another embodiment of the cosmetic of the present invention may contain a total amount of components (A) and (B) of 80% by mass or more but less than 100% by mass, relative to the total amount of the cosmetic, and may contain more than 0% by mass and 20% by mass or less of cosmetically acceptable additives. Yet another embodiment of the cosmetic of the present invention may contain a total amount of components (A) and (B) of 90% by mass or more but less than 100% by mass, relative to the total amount of the cosmetic, and may contain more than 0% by mass and 10% by mass or less of cosmetically acceptable additives. Here, the sum of the contents of components (A), (B), and cosmetically acceptable additives does not exceed 100% by mass, but may be 100% by mass. The appearance, form, and fluidity of the cosmetic are not particularly limited. The cosmetic may have any appearance of transparent, translucent, or emulsion (opaque), and may take any form of liquid, cream, solid, etc. Suitable examples of the cosmetic according to the present invention include makeup cosmetics such as powder foundation, water-in-oil emulsion foundation, sunscreen, eye shadow, blush, and lipstick, and skin care cosmetics such as emulsion, cream, serum, and lotion.

[0030] It is preferable that the cosmetic according to the present invention further contains a powder as component (C) in addition to components (A) and (B). Component (C) can also be added in place of a cosmetically acceptable additive. That is, one aspect of the cosmetic according to the present invention contains components (A), (B), and (C) and a cosmetically acceptable additive, while another aspect contains components (A), (B), and (C). When the cosmetic according to the present invention is a powder cosmetic containing component (C), the content of the liquid oily composition according to the present invention in the powder cosmetic (i.e., the ratio of the total amount of components (A) and (B)) is preferably 0.1 to 30% by mass relative to the total amount of the powder cosmetic. The content of the powder in the cosmetic is preferably 2 to 98% by mass of the entire cosmetic. Furthermore, the content of the powder in the cosmetic can be more appropriately adjusted depending on the type of cosmetic. For example, for powder foundations, blushers, and eye shadows, the content is preferably 70 to 98% by mass of the total cosmetic; for water-in-oil emulsion foundations, emulsion eye shadows, and sunscreens, the content is preferably 5 to 30% by mass of the total cosmetic; and for lipsticks, the content is preferably 2 to 15% by mass of the total cosmetic. Thus, in one aspect, the sum of the contents of components (A), (B), (C), and additives acceptable for the cosmetic does not exceed 100% by mass, but can be 100% by mass. In another aspect, the sum of the contents of components (A), (B), and (C) does not exceed 100% by mass, but can be 100% by mass.

[0031] The powder of component (C) can be any powder generally used in cosmetics, such as an extender pigment, a color pigment, or a pearl pigment.

[0032] Examples of extender pigments include inorganic pigments such as silicic acid, silicic anhydride, magnesium silicate, talc, sericite, mica, kaolin, clay, bentonite, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, and magnesium carbonate, or composite powders thereof; organic powders such as polyamide, polyester, polypropylene, polystyrene, polyurethane, nylon, silicone resin, vinyl resin, urea resin, phenolic resin, silicone resin, acrylic resin, melamine resin, epoxy resin, polycarbonate resin, divinylbenzene-styrene copolymer, silk powder, cellulose, Nε-lauroyl-L-lysine, long-chain alkyl phosphate metal salt, N-mono long-chain alkyl acyl basic amino acid, and metal soap, or composite powders thereof; and composite powders of the inorganic powders and the organic powders. The particle shape of these powders may be any shape, such as spherical, plate-like, acicular, granular, or irregular. In this specification, the expression "X, Y and / or Z" is synonymous with "at least one selected from the group consisting of X, Y and Z."

[0033] Examples of color pigments include metal oxides such as titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, red iron oxide, black iron oxide, Prussian blue, ultramarine, chromium oxide, and chromium hydroxide, or mixtures thereof; metal complexes such as manganese violet and cobalt titanate, or mixtures thereof; inorganic pigments such as carbon black; organic pigments such as tar-based dyes and lake pigments, or mixtures thereof; and natural dyes such as carmine, or mixtures thereof.

[0034] Examples of pearl pigments that can be used include those obtained by coating mica, synthetic phlogopite, or the like with a colorant such as titanium oxide, iron oxide, silicon oxide, Prussian blue, chromium oxide, carmine, or an organic pigment. These powders may be subjected to various surface treatments, such as water repellency treatment and water / oil repellency treatment, by conventional methods.

[0035] Sunscreen cosmetics (sunscreen cosmetics) can also be produced by incorporating a powder with UV-blocking properties, such as a metal oxide powder, as the powder of component (C). Metal oxide powder with UV-blocking properties preferably has an average particle size of 10 to 100 nm, as this reduces the appearance of a white cast when applied to the skin. When the cosmetic of the present invention is a sunscreen cosmetic, the content of the liquid oily composition of the present invention in the sunscreen cosmetic (i.e., the ratio of the total amount of component (A) and component (B)) is preferably 1 to 60% by mass relative to the total amount of the sunscreen cosmetic, and the content of the powder of component (C) (wherein the powder of component (C) can be a powder with UV-blocking properties, such as a metal oxide powder) is preferably 5 to 30% by mass relative to the total amount of the sunscreen cosmetic. The cosmetic of the present invention can also be made into a sunscreen cosmetic by incorporating an organic UV absorber. Therefore, in one aspect, the sum of the contents of component (A), component (B), component (C) (wherein the powder of component (C) may be a powder having an ultraviolet blocking effect such as a metal oxide powder) and the cosmetically acceptable additives does not exceed 100% by mass, but may be 100% by mass. In another aspect, the sum of the contents of component (A), component (B), and component (C) (wherein the powder of component (C) may be a powder having an ultraviolet blocking effect such as a metal oxide powder) does not exceed 100% by mass, but may be 100% by mass.

[0036] The cosmetic preparation of the present invention may further contain a volatile oil as component (D) instead of component (C) and / or cosmetically acceptable additives, or in addition to component (C) and / or cosmetically acceptable additives. That is, one aspect of the cosmetic preparation of the present invention includes components (A), (B), (D), and cosmetically acceptable additives; another aspect includes components (A), (B), (C), (D), and cosmetically acceptable additives; yet another aspect includes components (A), (B), and (D); and yet another aspect includes components (A), (B), (C), and (D). A volatile oil is an oil that is highly volatile at room temperature, and specifically, an oil with a boiling point of 250°C or lower. Because of their good compatibility with components (A) and (B), the volatile oil of component (D) is a volatile hydrocarbon and / or a volatile silicone. Suitable volatile oils include cyclotetrasiloxane (also known as octamethylcyclotetrasiloxane), octamethyltrisiloxane, cyclopentasiloxane (also known as decamethylcyclopentasiloxane), decamethyltetrasiloxane, cyclohexasiloxane (also known as dodecamethylcyclohexasiloxane), dodecamethylpentasiloxane, light isoparaffin, light liquid isoparaffin, and isododecane. The content of the volatile oil is preferably 0.1 to 50% by mass relative to the total amount of the cosmetic, and the content of the liquid oily composition (i.e., the ratio of the total amount of component (A) and component (B)) is preferably 1 to 99.9% by mass, more preferably 50 to 99.9% by mass, relative to the total amount of the cosmetic. Furthermore, when the cosmetic contains component (C), the content of component (C) is preferably 2 to 98% by mass relative to the total amount of the cosmetic. Furthermore, the content of component (C) can be more appropriately adjusted depending on the type of cosmetic; for example, for powder foundations, blushers, and eye shadows, it is preferably 70 to 98% by mass of the total cosmetic; for water-in-oil emulsion foundations, emulsion eye shadows, and sunscreens, it is preferably 5 to 30% by mass of the total cosmetic; and for lipstick, it is preferably 2 to 15% by mass of the total cosmetic.Therefore, in one aspect, the sum of the contents of components (A), (B), (D), and the cosmetically acceptable additives does not exceed 100% by mass, but may be 100% by mass. In another aspect, the sum of the contents of components (A), (B), (C), (D), and the cosmetically acceptable additives does not exceed 100% by mass, but may be 100% by mass. In yet another aspect, the sum of the contents of components (A), (B), and (D) does not exceed 100% by mass, but may be 100% by mass. In yet another aspect, the sum of the contents of components (A), (B), (C), and (D) does not exceed 100% by mass, but may be 100% by mass.

[0037] The cosmetic preparation of the present invention may further contain water as component (E) and a surfactant as component (F) instead of component (C), component (D) and / or cosmetically acceptable additives, or in addition to component (C), component (D) and / or cosmetically acceptable additives. That is, one aspect of the cosmetic preparation of the present invention includes components (A), (B), (E), (F) and cosmetically acceptable additives, another aspect includes components (A), (B), (C), (E), (F) and cosmetically acceptable additives, yet another aspect includes components (A), (B), (D), (E), (F) and cosmetically acceptable additives, yet another aspect includes components (A), (B), (C), (E), (F) and cosmetically acceptable additives, yet another aspect includes components (A), (B), (C), (E), (F) and cosmetically acceptable additives, yet another aspect includes components (A), (B), (C), (E), (F) and cosmetically acceptable additives, yet another aspect includes components (A), (B), (C), (E), (F) and cosmetically acceptable additives. In another aspect, the composition contains components (A), (B), (E), and (F); in another aspect, the composition contains components (A), (B), (C), (E), and (F); in another aspect, the composition contains components (A), (B), (D), (E), and (F); and in yet another aspect, the composition contains components (A), (B), (C), (D), (E), and (F). By including these components, the cosmetic composition according to the present invention can be made into an emulsion cosmetic composition. The cosmetic composition according to the present invention may be an oil-in-water emulsion cosmetic (O / W emulsion cosmetic) or a water-in-oil emulsion cosmetic (W / O emulsion cosmetic). In the case of a water-in-oil emulsion cosmetic, the effects of the cosmetic film durability and pigment dispersibility, which are characteristic of the liquid oily composition according to the present invention, are more likely to be exhibited.

[0038] The water of component (E) can be any of ion-exchanged water, distilled water, fruit-derived water, deep ocean water, etc. The amount of component (E) to be blended is not particularly limited, and it can be suitably used, for example, in an amount of 5 to 90% by mass based on the total mass of the cosmetic.

[0039] The surfactant used as component (F) can be any surfactant commonly used in cosmetics. Among these, nonionic surfactants such as polyoxyethylene-modified silicone (also known as polyether-modified silicone), polyglycerin fatty acid ester, polyoxyethylene alkyl, polyoxyethylene fatty acid ester, or polyoxyethylene hydrogenated castor oil are preferred. Specific examples of surfactants for component (F) include polyoxyethylene monostearate (100), glyceryl monostearate (SE), polyoxyethylene (30) stearyl ether, sorbitan sesquioleate, and sorbitan polyoxyethylene monooleate (20 mol). The amount of component (F) to be incorporated is not particularly limited, and can be suitably 0.01 to 10% by mass, for example, based on the total weight of the cosmetic.

[0040] In the case of an oil-in-water emulsion cosmetic, the content of the liquid oily composition according to the present invention is preferably 1 to 60% by mass, the content of the surfactant (component (F)) is preferably 0.01 to 5% by mass, and the content of the aqueous component (component (E)) is preferably 20 to 90% by mass, based on the total amount of the cosmetic. By further adding a powder (component (C)), it is possible to prepare an oil-in-water emulsion foundation, an oil-in-water emulsion sunscreen, or the like.

[0041] In the case of a water-in-oil emulsion cosmetic, the content of the liquid oily composition according to the present invention is preferably 1 to 60% by mass, the content of the surfactant (component (F)) is preferably 0.1 to 10% by mass, and the content of the aqueous component (component (E)) is preferably 5 to 70% by mass, based on the total amount of the cosmetic. Furthermore, by adding a powder (component (C)), it is possible to prepare a water-in-oil emulsion foundation, a water-in-oil emulsion sunscreen, or the like. Thus, in one aspect, the sum of the contents of components (A), (B), (E), (F), and any cosmetically acceptable additives does not exceed 100% by mass, but can be 100% by mass. In another aspect, the sum of the contents of components (A), (B), (C), (E), (F), and any cosmetically acceptable additives does not exceed 100% by mass, but can be 100% by mass. In yet another aspect, the sum of the contents of components (A), (B), (D), (E), (F), and cosmetically acceptable additives does not exceed 100% by mass, but may be 100% by mass. In yet another aspect, the sum of the contents of components (A), (B), (C), (D), (E), (F), and cosmetically acceptable additives does not exceed 100% by mass, but may be 100% by mass. In yet another aspect, the sum of the contents of components (A), (B), (E), and (F) does not exceed 100% by mass, but may be 100% by mass. In yet another aspect, the sum of the contents of components (A), (B), (C), (E), and (F) does not exceed 100% by mass, but may be 100% by mass. In yet another aspect, the sum of the contents of components (A), (B), (D), (E), and (F) does not exceed 100 mass%, but may be 100 mass%. In yet another aspect, the sum of the contents of components (A), (B), (C), (D), (E), and (F) does not exceed 100 mass%, but may be 100 mass%.

[0042] The cosmetic preparation of the present invention may contain additives commonly added to cosmetics, i.e., additives acceptable for use in cosmetics, to the extent that the effects of the present invention are not impaired. Examples of such additives include oily components (excluding components (A) and (B)), antioxidants, antioxidant aids, preservatives, UV absorbers, monohydric alcohols, polyhydric alcohols, water-soluble polymers, pH adjusters, inorganic salts or organic acid salts, chelating agents, vitamins, organic solvents, fragrances, various extracts, and UV scattering agents. These additives may be used alone or in combination of two or more. In this specification, if an additive functions as component (A), (B), (C), (D), or (F) when used in the cosmetic preparation of the present invention, the additive is considered to be component (A), (B), (C), (D), or (F), and is not considered to be an additive.

[0043] The oil component is an oil component other than component (A) and component (B), and examples thereof include hydrocarbons, fatty acid esters, triglycerides, fatty acids, higher alcohols, silicone resins, fluorine-based oils, and derivatives thereof. Specific examples include castor oil, olive oil, avocado oil, palm oil, cacao oil, liquid paraffin, liquid branched paraffin, petrolatum, squalane, hydrogenated polyisobutene, hydrogenated polydecene, di(caprylic / capric) propanediol, neopentyl glycol dicaprate, triethylhexanoin (also called tri-2-ethylhexanoic acid), butyl stearate, octyldodecyl myristate, isopropyl myristate, isopropyl lanolinate, hexyl lanolinate, diisopropyl adipate, Examples of suitable oleic acid include glycerin, diisopropyl sebacate, isotridecyl isononanoate, polyglyceryl decaisostearate, 2-octyldodecanol, dipentaerythritol fatty acid esters, di(phytosteryl / octyldodecyl) lauroyl glutamate, beeswax, dimer dilinoleyl bis(behenyl / isostearyl / phytosteryl) dimer dilinoleate, di(cholesteryl / octyldodecyl) N-lauroyl-L-glutamate, cetyl 2-ethylhexanoate, and oleyl alcohol.

[0044] Examples of antioxidants include oil-soluble vitamin C derivatives, tocopherols and their derivatives and salts, dibutylhydroxytoluene, butylhydroxyanisole, and gallic acid esters. One type of antioxidant may be used alone, or two or more types may be used in combination.

[0045] Examples of antioxidant aids include phosphoric acid, citric acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, ethylenediaminetetraacetic acid, etc. One type of antioxidant aid may be used alone, or two or more types may be used in combination.

[0046] Examples of preservatives include methylparaben, ethylparaben, butylparaben, phenoxyethanol, etc. One type of preservative may be used alone, or two or more types may be used in combination.

[0047] Examples of the ultraviolet absorber include benzoic acid-based ultraviolet absorbers such as para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N,N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, and N,N-dimethyl PABA ethyl ester; anthranilic acid-based ultraviolet absorbers such as homomenthyl-N-acetylanthranilate; amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, and phenyl salicylate; salicylic acid-based ultraviolet absorbers such as octyl cinnamate, ethyl-4-isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, methyl-2,4-diisopropyl cinnamate, propyl-p-methoxycinnamate, isopropyl-p-methoxycinnamate, isoamyl-p-methoxycinnamate, octyl-p-methoxycinnamate (2-ethylhexyl cinnamate), cinnamic acid-based ultraviolet absorbers such as 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,4-dihydroxybenzophenone, 2,4-dihydroxy-4,4'-dimethoxy ... benzophenone-based ultraviolet absorbers such as phenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, and 4-hydroxy-3-carboxybenzophenone;3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor, urocanic acid, urocanic acid ethyl ester, 2-phenyl-5-methylbenzoxazole, 2,2'-hydroxy-5-methylphenylbenzotriazole, 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, dibenzalazine, dianisoylmethane, 4-methoxy-4'-t-butyldibenzoylmethane, 5-(3 ,3-dimethyl-2-norbornylidene)-3-pentan-2-one, 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxy)1,3,5-triazine, 4-tent-butyl-4'-methoxydibenzoylmethane, ethylaminohydroxybenzoylhexyl benzoate, ethylhexyl triazine, t-butylmethoxydibenzoylmethane, bisethylhexyloxyphenol methoxyphenyl triazine, diethylhexylbutamido triazone, and oxybenzone-3. The ultraviolet absorbers may be used alone or in combination of two or more.

[0048] The monohydric alcohol may be a lower alcohol or a higher alcohol. Examples of lower alcohols include methanol, ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol. Examples of higher alcohols include cetanol (also called cetyl alcohol or palmityl alcohol), stearyl alcohol (also called octadecyl alcohol), isostearyl alcohol (also called isooctadecanol), oleyl alcohol, cetostearyl alcohol, octyldodecanol, decyltetradecanol, hexyldecanol, behenyl alcohol, lauryl alcohol, lanolin alcohol, and hydrogenated lanolin alcohol.

[0049] Examples of polyhydric alcohols include propylene glycol (1,2-propanediol), 1,3-propanediol, 1,3-butylene glycol (1,3-butanediol), pentylene glycol (1,2-pentanediol), neopentylene glycol (2,2-dimethyl-1,3-propanediol), isoprene glycol (3-methyl-1,3-butanediol), dipropylene glycol, glycerin, diglycerin, polyglycerin, polyethylene glycol, pentaerythritol, dipentaerythritol, sorbitol, and sorbitan. One type of polyhydric alcohol may be used alone, or two or more types may be used in combination.

[0050] The water-soluble polymer may be a natural water-soluble polymer, a semi-synthetic water-soluble polymer, or a synthetic water-soluble polymer. The water-soluble thickener contained in the cosmetic composition according to the present invention may be used alone or in combination of two or more types.

[0051] Examples of natural water-soluble polymers include plant-derived polymers such as agar, glucomannan, gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, quince seed (a component derived from quince), algae colloid (also known as cassou extract), and starch (e.g., starch derived from rice, corn, potato, or wheat); microbial-derived polymers such as xanthan gum, dextran, succinoglucan, and pullulan; and animal-derived polymers such as collagen, casein, albumin, and gelatin.

[0052] Examples of semi-synthetic water-soluble polymers include starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch; cellulose-based polymers such as methyl cellulose, nitrocellulose, methylhydroxypropyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, and cellulose powder; and alginic acid-based polymers such as sodium alginate and propylene glycol alginate.

[0053] Examples of synthetic water-soluble polymers include vinyl polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, and carboxyvinyl polymers; polyoxyethylene polymers such as polyethylene glycol 20,000, 40,000, and 60,000; polyoxyethylene-polyoxypropylene copolymer polymers; acrylic polymers such as sodium polyacrylate, polyethyl acrylate, and polyacrylamide; polyethyleneimine, and cationic polymers.

[0054] Examples of pH adjusters include edetic acid, edetate disodium, citric acid, sodium citrate, sodium hydroxide, potassium hydroxide, triethanolamine, etc. One type of pH adjuster may be used alone, or two or more types may be used in combination.

[0055] Examples of inorganic salts include sodium chloride, potassium chloride, magnesium chloride, sodium sulfate, potassium sulfate, magnesium sulfate, etc. Examples of organic acid salts include citric acid, malic acid, tartaric acid, and salts thereof, ascorbic acid, and salts thereof, ascorbic acid derivatives, and salts thereof, etc.

[0056] Examples of the chelating agent include disodium edetate, edetate salts, hydroxyethanediphosphonic acid, etc. One type of chelating agent may be used alone, or two or more types may be used in combination.

[0057] Vitamins include, for example, vitamin A and vitamin B １ , Vitamin B ２ , Vitamin B ６ , vitamin E, vitamin K and derivatives thereof, pantothenic acid and derivatives thereof, and biotin.

[0058] Examples of extracts include plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, and rose. The cosmetic can be produced by mixing the liquid oily composition with, if desired, component (C), component (D), component (E), component (F), and / or cosmetically acceptable additives, and molding the mixture into a shape suitable for the desired cosmetic or filling it into a container suitable for the desired cosmetic. The mixing can be carried out by simultaneously adding each component to a mixer, or by mixing the components in an appropriate order. Stirring or kneading during the mixing, or molding into a shape suitable for the desired cosmetic or filling into a container, can be carried out by methods well known in the art. The temperature during the mixing can be set so that the temperature inside the mixer is 20 to 100°C. In the production of the cosmetic, instead of using the liquid oily composition, components (A) and (B) can be used without preparing them into the liquid oily composition in advance. However, using the liquid oily composition prepared as a raw material for the production of the cosmetic results in superior cosmetic production efficiency. When components (A) and (B) are used separately, they may be blended so that the contents of components (A) and (B) in the total amount of the cosmetic are the same as when the liquid oily composition is used. One aspect of the present invention is the use of components (A) and (B) as a cosmetic, optionally with components (C), (D), (E), (F), and / or cosmetically acceptable additives. Another aspect is the use of the liquid oily composition as a cosmetic, optionally with components (C), (D), (E), (F), and / or cosmetically acceptable additives. The use as a cosmetic can be carried out by a method known per se, depending on the purpose and form of the cosmetic. That is, one aspect of the present invention is a makeup method comprising applying the cosmetic composition of the present invention to an appropriate area of ​​a subject in need of makeup, such as the skin or hair. More specifically, for example, an oil-in-water moisturizing cream can be used in a skin or hair moisturizing method comprising applying an amount sufficient to achieve moisturizing effects to a subject in need of moisturizing.For example, an oil-in-water hand cream can be used in a method for moisturizing hands and / or preventing or improving rough hands, comprising applying an amount effective for moisturizing hands and / or preventing or improving rough hands to the hands of a subject in need of such moisturizing and / or roughness prevention or improvement. For example, a water-in-oil emulsion foundation or powder foundation can be used in a method for conditioning the skin surface condition or skin color, comprising applying an amount effective for conditioning the skin surface condition or skin color to the skin of a subject in need of such conditioning, preferably the face or neck. For example, a water-in-oil emulsion sunscreen can be used in a method for preventing sunburn, comprising applying an amount effective for preventing sunburn to the skin of a subject in need of such sunburn prevention. In one aspect, the cosmetic of the present invention comprises 3 to 18% by mass, preferably 5 to 15% by mass, of the oily composition relative to the total amount of the cosmetic. In another aspect, the cosmetic of the present invention contains, relative to the total amount of the cosmetic, 0.75 to 4.5 mass% of component (A) and 2.25 to 13.5 mass% of component (B), preferably 1.25 to 3.75 mass% of component (A) and 3.75 to 11.25 mass% of component (B). Here, component (A) may be polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) or di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl)malate, and component (B) may be dimethicone 10cs. In one aspect, the liquid oily composition of the present invention has a light feel, excellent water repellency, and excellent pigment dispersibility. In one aspect, the cosmetic of the present invention has a light feel, excellent cosmetic film durability, and excellent storage stability; in another aspect, the cosmetic of the present invention has a light feel, excellent cosmetic film durability, excellent storage stability, good color development, and little dullness; and in yet another aspect, the cosmetic of the present invention has a light feel, excellent cosmetic film durability, excellent storage stability, little dullness, and excellent water resistance.

[0059] The present invention will be described in more detail below based on specific examples, but the present invention is not limited to the contents of the examples shown below.

[0060] First, a liquid oily composition, which is one embodiment of the present invention, will be exemplified. Liquid oily compositions were prepared by heating, stirring, and mixing at 70°C using the formulations shown in Tables 1 to 8, followed by cooling to 25°C. The resulting liquid oily compositions were evaluated for water repellency, spreadability, and pigment dispersibility. The evaluation results are shown in Tables 1 to 8. The numerical values ​​in the component columns in the tables represent mass %. Furthermore, "(a)" represents an ester oil, and "(b)" represents a silicone oil. Component (a) contains an ester oil equivalent to component (A) of the present invention. Component (b) contains a silicone oil equivalent to component (B) of the present invention. Furthermore, "(a) / (b)" in the tables indicates the mass ratio ((a) / (b) ratio) of component (a) to component (b) for each sample.

[0061] <Raw materials for liquid oily compositions> As raw materials for the liquid oily compositions in Tables 1 to 8, polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) was "Cosmol 43N" (hydroxyl value 40 mgKOH / g) manufactured by The Nisshin Oillio Group, Ltd., and glyceryl tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) was "Salacos 3318" (hydroxyl value 20 mgKOH / g) manufactured by The Nisshin Oillio Group, Ltd. For di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl) malate, "Cosmol 222" (hydroxyl value 80 mgKOH / g) manufactured by The Nisshin Oillio Group, Ltd. was used, and for dipentaerythrityl penta(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate), "Salacos DP-518N" (hydroxyl value 30 mgKOH / g) manufactured by The Nisshin Oillio Group, Ltd. was used. As comparative examples, 3,5,5-trimethylhexyl 3,5,5-trimethylhexanoate was used as "Salacos 99" (hydroxyl value 0 mgKOH / g) manufactured by The Nisshin Oillio Group, Ltd., neopentyl glycol di-2-ethylhexanoate was used as "Cosmol 525" (hydroxyl value 0 mgKOH / g) manufactured by The Nisshin Oillio Group, Ltd., and polyglyceryl-2 triisostearate was used as "Cosmol 43V" (hydroxyl value 40 mgKOH / g) manufactured by The Nisshin Oillio Group, Ltd.

[0062] As the silicone oils, Shin-Etsu Chemical Co., Ltd.'s "KF-96A-5cs" was used for dimethicone 5cs, Shin-Etsu Chemical Co., Ltd.'s "KF-96A-10cs" for dimethicone 10cs, Shin-Etsu Chemical Co., Ltd.'s "KF-96A-30cs" for dimethicone 3000cs, Shin-Etsu Chemical Co., Ltd.'s "KF-96A-3000cs" for dimethicone 10000cs, Shin-Etsu Chemical Co., Ltd.'s "KF-96A-10000cs" for dimethicone 10000cs, Shin-Etsu Chemical Co., Ltd.'s "KF-56A" for diphenylsiloxyphenyl trimethicone, and Shin-Etsu Chemical Co., Ltd.'s "KF-54" for diphenyl dimethicone were used.

[0063] <Method for evaluating compatibility> The components corresponding to component (a) and component (b) used in each example and comparative example were mixed at a mass ratio of 1:1, and the evaluation criteria were as follows: Component (a) and component (b) were weighed into screw tubes of the same mass, heated to 70°C, and then shaken well to mix. The screw tubes were then left overnight at 25°C, and the appearance was visually inspected. The results are shown in Tables 1 to 8.

[0064] (Compatibility evaluation criteria) S: Appearance is transparent and uniform. IS: Appearance is separated into two layers, cloudy or opaque.

[0065] <Method for evaluating water repellency> The liquid oily composition to be evaluated was applied to a 50 mm x 50 mm PMMA plate, excess oil was wiped off with a cloth, and the applied amount was determined to be 0.04 to 0.12 mg / cm ２ Next, 30 μL of ion-exchanged water was dropped onto the coating film applied to the plate, and the plate was tilted little by little to measure the angle at which the water droplet began to move.

[0066] (Evaluation criteria for water repellency) S: The plate began to move when the tilt angle was less than 18 degrees. A: The plate began to move when the tilt angle was 18 degrees or more and less than 20 degrees. B: The plate began to move when the tilt angle was 20 degrees or more and less than 23 degrees. C: The plate began to move when the tilt angle was 23 degrees or more and less than 26 degrees. D: The plate began to move when the tilt angle was 26 degrees or more and less than 29 degrees. E: The plate did not move even when tilted at an angle of 29 degrees.

[0067] <Method for evaluating lightness of feel> 40 μL of the liquid oily composition to be evaluated was dropped onto the inside of the forearm, and the fingers of the opposite hand, except for the thumb, were massaged together for 30 seconds. Using tri(caprylic / capric)glyceryl, a general-purpose ester oil with a light feel, as a comparative ester oil, the lightness of the liquid oily composition was evaluated by 10 monitors.

[0068] (Evaluation criteria for elongation) S: 9 or more out of 10 people answered that the feel was equal to or lighter than the comparative ester oil. A: 6 to 8 out of 10 people answered that the feel was equal to or lighter than the comparative ester oil. B: 4 to 5 out of 10 people answered that the feel was equal to or lighter than the comparative ester oil. C: 2 to 3 out of 10 people answered that the feel was equal to or lighter than the comparative ester oil. D: 1 or less out of 10 people answered that the feel was equal to or lighter than the comparative ester oil.

[0069] <Method for evaluating pigment dispersibility> 0.1 g of titanium oxide having an average particle size of 0.15 μm ("TIPEQUE A-100" manufactured by Ishihara Sangyo Kaisha) and 10 g of a liquid oily composition produced according to the formulation shown in Tables 1 to 8 were weighed into a glass screw tube and the tube was capped. The tube was placed in an ultrasonic cleaner and subjected to ultrasonic treatment for 10 minutes with occasional shaking. One hour after ultrasonic treatment, the appearance was observed by illuminating the screw tube from behind with a fluorescent lamp, and the degree of sedimentation of titanium oxide was evaluated as the percentage of the height of the shaded area where light was difficult to transmit due to the dispersed pigment, when the height of the mixture of pigment and liquid oily composition was taken as 100%.

[0070] (Evaluation criteria for pigment dispersibility) S: 90% or more of the height was in shadow. A: 80% or more and less than 90% of the height was in shadow. B: 70% or more and less than 80% of the height was in shadow. C: 50% or more and less than 70% of the height was in shadow. D: 30% or more and less than 50% of the height was in shadow. E: Less than 30% of the height was in shadow.

[0071] <Overall Evaluation of Water Repellency, Lightness of Touch, and Pigment Dispersibility> The liquid oil-based compositions to be evaluated were scored for the water repellency, lightness of touch, and pigment dispersibility, with S being 16 points, A being 8 points, B being 4 points, C being 2 points, D being 1 point, and E being 0 points, and the total score of all the evaluation points for water repellency, lightness of touch, and pigment dispersibility was taken as the overall evaluation score.

[0072]

[0073]

[0074]

[0075]

[0076]

[0077]

[0078] As shown in Tables 1 to 6, the compositions of Examples 1 to 12, which combine an ester oil agent of the present invention that is liquid at 20°C and has a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in the fatty chain and a hydroxyl value of 5 to 100 mgKOH / g, with a silicone oil that is liquid at 20°C and is mixed therewith in a 1:1 mass ratio, were confirmed to have excellent water repellency, a light feel, and excellent pigment dispersibility. On the other hand, the compositions of Comparative Examples 1 to 5 lack either component (a) or component (b) of the present invention, and none of them satisfied all of the water repellency, light feel, and pigment dispersibility. Of particular note is that the compositions corresponding to the Examples of the present invention had better water repellency than the composition of Comparative Example 5, which was evaluated solely using silicone oil, which has traditionally been known to have excellent water repellency. Furthermore, in the compositions of Comparative Examples 6 to 9, the ester oils were liquid at 20°C and known to have high compatibility with silicone compounds. However, they differed in fatty chain structure and hydroxyl value range from the ester oil used as component (A) in the present invention. These comparative examples exhibited particularly poor pigment dispersibility and insufficient water repellency. Furthermore, in the compositions of Comparative Examples 10 and 11, the ester oil of component (a) had the same hydroxyl value range and ester alcohol skeleton as the ester oil of component (a) used in Example 1, but differed in fatty chain structure. These comparative compositions exhibited poor pigment dispersibility and also insufficient water repellency and light feel. The compositions of Comparative Examples 12 to 17 were exemplified by using polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) or di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl) malate as component (a), and using silicone that is incompatible with component (a) at a mass ratio of 1:1 as component (b). All of these compositions were inferior in water repellency, light feel, and pigment dispersibility.

[0079]

[0080]

[0081] Furthermore, as shown in Examples 13 to 24 in Tables 7 and 8, compositions in which the ratio of component (a) to component (b) was changed so that the (a) / (b) ratio was within the range of 0.05 to 4 were also confirmed to have excellent water repellency, a light feel, and excellent pigment dispersibility. Among these, the compositions of Examples 1, 15, and 21 in which the ratio of component (a) to component (b), that is, the (a) / (b) ratio, was 0.33 and 0.43, respectively, exhibited particularly excellent effects.

[0082] Next, cosmetics containing a liquid oily composition, another embodiment of the present invention, will be exemplified. The cosmetics of Examples 25 to 34 and Comparative Examples 22 to 31 shown in Tables 9 to 13 were prepared by the methods described after each table, and then evaluated using the evaluation methods and criteria described below. All cosmetics were evaluated for "lightness of feel," "durability of cosmetic film," and "storage stability." Foundations were additionally evaluated for "color development" and "dullness," and sunscreens were additionally evaluated for "dullness" and "water resistance."

[0083] <Method for evaluating lightness of feel> The cosmetic to be evaluated was applied to the inside of the forearm and the feel was evaluated. A cosmetic containing tri(caprylic / capric)glyceryl was used as a standard sample for feel comparison, and the lightness of feel of each cosmetic was evaluated by 10 monitors in comparison with the standard sample.

[0084] (Evaluation criteria for lightness of feel) S: 9 or more out of 10 people answered that the feel was equal to or lighter than the standard sample. A: 6 to 8 out of 10 people answered that the feel was equal to or lighter than the standard sample. B: 4 to 5 out of 10 people answered that the feel was equal to or lighter than the standard sample. C: 2 to 3 out of 10 people answered that the feel was equal to or lighter than the standard sample. D: 1 or less out of 10 people answered that the feel was equal to or lighter than the standard sample.

[0085] <Method for evaluating the durability of cosmetic film> The cosmetic material to be evaluated was first applied to the inside of the forearm (application (a)). One hour after application, the same cosmetic material was applied to a new area on the inside of the forearm and left for 10 minutes (application (b)). The difference in feel between the application areas of application (a) and application (b) was evaluated by 10 monitors.

[0086] (Evaluation criteria for cosmetic film durability) S: 8 or more out of 10 people answered that there was little difference in the feel between application (a) and application (b). A: 6 to 7 out of 10 people answered that there was little difference in the feel between application (a) and application (b). B: 4 to 5 out of 10 people answered that there was little difference in the feel between application (a) and application (b). C: 2 to 3 out of 10 people answered that there was little difference in the feel between application (a) and application (b). D: 1 or less out of 10 people answered that there was little difference in the feel between application (a) and application (b).

[0087] <Method for evaluating storage stability> The cosmetic preparation to be evaluated was placed in a glass screw tube and sealed, and the temperature was alternately changed between 40°C (12 hours) and 5°C (12 hours). After storage for 14 days, the appearance was evaluated visually.

[0088] (Evaluation criteria for storage stability) A: Almost no separation or precipitation was observed. B: Separation and precipitation were slightly observed. C: Separation and precipitation were clearly observed. D: Separation and precipitation were significantly observed.

[0089] <Method for evaluating color development> The foundation to be evaluated was applied to the inside of the forearm and the color development was evaluated. The color development was evaluated by 10 monitors who compared the color of the cosmetic with the color of the cosmetic applied to the skin and evaluated the difference in color.

[0090] (Evaluation criteria for color development) S: 9 or more people out of 10 answered that there was no or almost no difference in color. A: 6 to 8 people out of 10 answered that there was no or almost no difference in color. B: 4 to 5 people out of 10 answered that there was no or almost no difference in color. C: 2 to 3 people out of 10 answered that there was no or almost no difference in color. D: 1 or less people out of 10 answered that there was no or almost no difference in color.

[0091] <Method for evaluating dullness> The foundation or sunscreen cosmetic to be evaluated was applied to the inside of the forearm (application (a)). One hour after application, the same cosmetic was applied to a new area on the inside of the forearm and left for 10 minutes (application (b)). The difference in appearance between application (a) and application (b) was evaluated by 10 monitors.

[0092] (Method of evaluating dullness) S: 8 or more people out of 10 answered that there was a small difference in appearance between application (a) and application (b). A: 6 to 7 people out of 10 answered that there was a small difference in appearance between application (a) and application (b). B: 4 to 5 people out of 10 answered that there was a small difference in appearance between application (a) and application (b). C: 2 to 3 people out of 10 answered that there was a small difference in appearance between application (a) and application (b). D: 1 or less people out of 10 answered that there was a small difference in appearance between application (a) and application (b).

[0093] <Method for Evaluating Water Resistance> The sunscreen cosmetic to be evaluated was applied to a 50 mm x 50 mm PMMA plate (unevenness 5 μm) at a concentration of 1.3 mg / cm ２ The sample was placed on the sample and spread evenly. After leaving it to dry at room temperature for 15 minutes or more, the SPF was measured using a UV-1000 manufactured by Labsphere (Measurement (c)). The PMMA plate was fixed at a 45-degree angle, and the tap water was allowed to hit the upper end of the sample-coated surface of the plate, and the plate was washed with running tap water at a rate of 150 mL per minute from a height of 40 cm for 1 minute. After washing with running water, the plate was left at room temperature for 15 minutes or more, and the SPF was measured again (Measurement (d)). The durability of the SPF effect was calculated based on the following formula. Here, if the SPF durability is simply calculated as [measured value of Measurement (d)] / [measured value of Measurement (c)], when the measured value of Measurement (c) is low from the beginning, even if the measured value of Measurement (d) is low, it may be calculated that the residual rate is high apparently, but there may be cases in which the SPF effect is insufficient in practice. Therefore, in order to reflect the absolute value of the measurement value of measurement (d) after running water, the calculation formula was set to multiply [measurement value of measurement (d)] / [measurement value of measurement (c)] by the measurement value of measurement (d).

[0094] [SPF durability] = [measured value of measurement (d)] × [measured value of measurement (d)] / [measured value of measurement (c)]

[0095] (Evaluation criteria for water resistance) S: SPF durability was 3.0 or more. A: SPF durability was 2.5 or more and less than 3.0. B: SPF durability was 2.0 or more and less than 2.5. C: SPF durability was 1.5 or more and less than 2.0. D: SPF durability was less than 1.5.

[0096] [Oil-in-water emulsified moisturizing cream] As the liquid oily composition according to the present invention, an oil-in-water moisturizing cream was produced using the liquid oily composition of Example 1, i.e., a liquid oily composition in which polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) (hydroxyl value 40 mgKOH / g) as component (A) and dimethicone 10cs as component (B) were mixed at an (A) / (B) ratio of 0.33. The formulation and evaluation results of the oil-in-water moisturizing cream are shown in Table 9. Note that as the tri(caprylic / capric)glyceryl, "O.D.O.", a product manufactured by Nisshin Oillio Group, Ltd., can be used.

[0097] The oil-in-water emulsified moisturizing cream was produced through the following steps A to C. A: Components 1 to 12 were heated to dissolve and mixed uniformly. B: Components 13 to 18 were heated and mixed uniformly. C: The mixture obtained in step A was added to the mixture obtained in step B at 80°C and emulsified, and after cooling, component 19 was added.

[0098]

[0099] In evaluating the lightness of feel of the oil-in-water emulsified moisturizing creams of Examples 25 and 26 and Comparative Examples 22 and 23, the oil-in-water emulsified moisturizing cream of Control Comparative Example 1 was used as the standard sample. As shown in Table 9, the oil-in-water emulsified moisturizing cream of Example 25, which contained the liquid oily composition of Example 1, and the oil-in-water emulsified moisturizing cream of Example 26, which was formulated with component (A) and component (B) independently, had a light feel, good cosmetic film durability, and good storage stability. On the other hand, the oil-in-water emulsified moisturizing creams of Comparative Examples 22 and 23, which lacked either component (A) or component (B), which are essential components of the liquid oily composition according to the present invention, did not satisfy all of the lightness of feel, cosmetic film durability, and storage stability.

[0100] [Oil-in-water emulsion hand cream] An oil-in-water emulsion hand cream was produced using the liquid oily composition of Example 3 as an oily moisturizer, that is, a liquid oily composition obtained by mixing di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl)malate (hydroxyl value 80 mgKOH / g) as component (A) and dimethicone 10cs as component (B) in an (A) / (B) ratio of 0.33. The formulation and evaluation results of the oil-in-water emulsion hand cream are shown in Table 10.

[0101] The oil-in-water emulsion hand cream was produced through the following steps A to C. A: Components 1 to 10 were heated to dissolve and mixed uniformly. B: Components 11 to 15 were heated to mix uniformly. C: The mixture obtained in step A was added to the mixture obtained in step B at 80°C, emulsified, and cooled.

[0102]

[0103] In evaluating the lightness of feel of the oil-in-water emulsion hand creams of Examples 27 and 28 and Comparative Examples 24 and 25, the oil-in-water emulsion hand cream of Control Comparative Example 2 was used as the standard sample. As shown in Table 10, the oil-in-water emulsion hand cream of Example 27, which contained the liquid oily composition of Example 3, and the oil-in-water emulsion hand cream of Example 28, which contained component (A) and component (B) independently, had a light feel, good cosmetic film durability, and good storage stability. On the other hand, the oil-in-water emulsion hand creams of Comparative Examples 24 and 25, which lacked either component (A) or component (B), which are essential components of the liquid oily composition of the present invention, did not satisfy all of the lightness of feel, cosmetic film durability, and storage stability.

[0104] [Water-in-oil emulsion foundation] A water-in-oil emulsion foundation was produced using the liquid oily composition of Example 1, i.e., a liquid oily composition obtained by mixing polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) (hydroxyl value 40 mgKOH / g) as component (A) and dimethicone 10cs as component (B) at an (A) / (B) ratio of 0.33. The formulation and evaluation results of the water-in-oil emulsion foundation are shown in Table 11. In addition, as a mixture of (dimethicone / vinyl dimethicone) crosspolymer and cyclopentasiloxane, "KSG-16" manufactured by Shin-Etsu Chemical Co., Ltd. can be used; as a (vinyl dimethicone / methicone silsesquioxane) crosspolymer, "KSP-100" manufactured by Shin-Etsu Chemical Co., Ltd. can be used; as a polyether-modified silicone, "KF-6017" manufactured by Shin-Etsu Chemical Co., Ltd. can be used; and as an organically modified clay mineral, "Bentone 38" manufactured by ELEMENTIS can be used.

[0105] The water-in-oil emulsion foundation was produced by the following steps A to C. A: Components 1 to 12 were heated and mixed, and after cooling to 40°C, components 13 to 22 were added and dispersed using a homomixer. B: Components 23 to 28 were mixed and dissolved uniformly. C: The mixture obtained in step B was added to the dispersion obtained in step A and emulsified.

[0106]

[0107] In evaluating the lightness of feel of the water-in-oil emulsion foundations of Examples 29 and 30 and Comparative Examples 26 and 27, the water-in-oil emulsion foundation of Control Comparative Example 3 was used as the standard sample. As shown in Table 11, the water-in-oil emulsion foundation of Example 29, which contained the liquid oily composition of Example 1, and the water-in-oil emulsion foundation of Example 3, which contained component (A) and component (B) independently, had a light feel, good cosmetic film durability, good storage stability, excellent color development, and little dullness. On the other hand, the water-in-oil emulsion foundations of Comparative Examples 26 and 27, which lacked either component (A) or component (B), which are essential components of the liquid oily composition according to the present invention, did not satisfy all of the lightness of feel, cosmetic film durability, storage stability, color development, and dullness.

[0108] [Powder Foundation] A powder foundation was produced using the liquid oil composition of Example 1, i.e., a liquid oil composition obtained by mixing polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) (hydroxyl value 40 mgKOH / g) as component (A) and dimethicone 10cs as component (B) at an (A) / (B) ratio of 0.33. The formulation and evaluation results of the powder foundation are shown in Table 12. Note that, as the polymethylsilsesquioxane, "KMP-591" manufactured by Shin-Etsu Chemical Co., Ltd. can be used, and as the (vinyl dimethicone / methicone silsesquioxane) crosspolymer, "KSP-100" manufactured by Shin-Etsu Chemical Co., Ltd. can be used.

[0109] The powder foundation was produced by the following steps A to D. A: Components 1 to 6 were heated to 50°C and mixed. B: Components 7 to 15 were mixed and dispersed. C: The mixture obtained in step A was added to the mixed dispersion obtained in step B and mixed. D: The mixture obtained in step C was pulverized and compression molded into a dish.

[0110]

[0111] In evaluating the lightness of feel of the powder foundations of Examples 31 and 32 and Comparative Examples 28 and 29, the powder foundation of Control Comparative Example 4 was used as the standard sample. As shown in Table 12, the powder foundation of Example 31 containing the liquid oily composition of Example 1 and the powder foundation of Example 32 containing component (A) and component (B) independently had a light feel, good cosmetic film durability, good storage stability, excellent color development, and little dullness. On the other hand, the powder foundations of Comparative Examples 28 and 29, which lacked either component (A) or component (B), which are essential components of the liquid oily composition according to the present invention, did not satisfy all of the lightness of feel, cosmetic film durability, storage stability, color development, and dullness.

[0112] [Water-in-oil emulsion sunscreen] A water-in-oil emulsion sunscreen was produced using the liquid oily composition of Example 1, i.e., a liquid oily composition comprising polyglyceryl-2 tri(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) (hydroxyl value 40 mgKOH / g) as component (A) and dimethicone 10cs as component (B) in an (A) / (B) ratio of 0.33. The formulation and evaluation results of the water-in-oil emulsion sunscreen are shown in Table 13. In addition, as the stearic acid-treated fine particle titanium oxide, "TIPAQUE TTO-S2" manufactured by Ishihara Sangyo Kaisha, Ltd. can be used; as the silicone-treated zinc oxide, "FINEX 25" manufactured by Sakai Chemical Industry Co., Ltd., which is treated with 5% methyl hydrogen polysiloxane, as the mixture of trimethoxysiloxysilicate and cyclopentasiloxane, "KF-7312J" manufactured by Shin-Etsu Chemical Co., Ltd. can be used; and as the cetyl dimethicone copolyol, "ABIL EM-90" manufactured by Evonik can be used.

[0113] The water-in-oil emulsion sunscreen was produced by the following steps A to D. A: Components 1 to 13 were mixed uniformly. B: Components 14 to 17 were mixed uniformly. C: The mixture obtained in step B was added to the mixture obtained in step A and emulsified. D: The emulsion obtained in step C was filled into a resin bottle equipped with a stainless steel ball.

[0114]

[0115] In evaluating the lightness of feel of the water-in-oil emulsion sunscreens of Examples 33 and 34 and Comparative Examples 30 and 31, the water-in-oil emulsion sunscreen of Control Comparative Example 5 was used as the standard sample. As shown in Table 13, the water-in-oil emulsion sunscreen of Example 33, which contained the liquid oily composition of Example 1, and the water-in-oil emulsion sunscreen of Example 34, which contained an independent blend of Component (A) and Component (B), had a light feel, good cosmetic film durability, good storage stability, little dullness, and good water resistance. On the other hand, the water-in-oil emulsion sunscreens of Comparative Examples 30 and 31, which lacked either Component (A) or Component (B), an essential component of the liquid oily composition of the present invention, did not satisfy all of the lightness of feel, cosmetic film durability, storage stability, color development, and dullness.

[0116] The present invention provides a liquid oily composition that has a light feel, excellent water-repellent effect, or excellent pigment dispersibility, and that, when used as a base oil in various cosmetics, can impart a long-lasting cosmetic film or excellent storage stability, and the liquid oily composition is suitable as a raw material for makeup cosmetics, sunscreen cosmetics, etc., which require a long-lasting cosmetic film. Furthermore, by including the liquid oily composition as one of the oily components, it is possible to provide cosmetics that have a good feel in use, that have an excellent long-lasting cosmetic film, good color development, little dullness, excellent storage stability, or can impart water resistance.

Claims

DEPCT671. A liquid oil composition consisting of component (A) and component (B) described below, in which the mass ratio ((A) / (B)) of the amount of component (A) out of the total components relative to the amount of component (B) out of the total components is within the range from 0.05 to 4: Component (A): Oil ester with a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in an aliphatic chain with hydroxyl values ​​within the range from 5 to 100 mg K.

1. Component (A): Silicone oil compatible with component (A) in a mass ratio of 1:1 and is liquid at 20°C.

2. Liquid oil composition pursuant to claim 1, whereby component (A) is at least one compound selected from the group of polyglyceryl-2-(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctanoate) and di(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl)malate. 3.Liquid oil composition under claim 1 where component (B) is at least one compound selected from a group consisting of dimethicone, diphenylsiloxyphenyltrimethicone, diphenyldimethicone and phenyltrimethicone.

4. Liquid oil composition under claim 1 where component (A) is polyglyceryl-2-(2-(1,3,3-trimethylbutyl)-5,7,7-trimethyl octanoate), and component (B) is dimethicone.

5. Liquid oil composition under claim 1 where component (B) contains 6. Cosmetics containing any one of the liquid oil components under claims 1 through 5.

7. Cosmetics under claim 6 containing an additional component (C) described below: Component (C): Powder.

8. Cosmetics under claim 6 containing an additional component (D) described below: Component (D): Volatile hydrocarbon oil and / or volatile silicone. 9.Cosmetics under claim 6 that contain additional components (E) and components (F), and are O / W emulsion cosmetics or W / O emulsion cosmetics: component (E):water, component (F):surfactant.

10. Cosmetics that contain components (A) and components (B) described below where the mass ratio ((A) / (B)) of the amount of component (A) by the total mass of the cosmetic relative to the amount of component (B) by the total mass of the cosmetic is within the range. From 0.05 to 4: Component (A): Ester oil with a 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl structure in an aliphatic chain with hydroxyl values ​​within the range of 5 to 100 mg KOH / g, and is liquid at 20°C. Component (B): Silicone oil compatible with Component (A) in a mass ratio of 1:1 and is liquid at 20°C.

11. Cosmetics pursuant to claim 10 that are combined with additional Component (C) described below: Component (C): Powder. 12.Cosmetics under claim 10 that include additional components (D) described below: Component (D): volatile hydrocarbon oils and / or volatile silicones; 13. Cosmetics under claim 10 that include additional components (E) and components (F), and are O / W emulsion cosmetics or W / O emulsion cosmetics: Component (E): water; Component (F): surfactants.