Cosmetic

Abstract

To provide a cosmetic having superior usability.SOLUTION: The present invention provides a cosmetic that comprises: (A) polyoxyalkylene dialkyl dimer diol ether; (B) a cyclic carboxamide derivative having a specific structure or a salt thereof; and (C) water.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to cosmetics. Specifically, the present invention relates to a cosmetic comprising a cyclic carboxamide derivative or a salt thereof.

Background Art

[0002] Cosmetics include various dosage forms such as lotions, emulsions, creams, etc. Among them, lotions are one of the essential items for basic makeup. In addition to water and water-soluble substances of moisturizing components, various surfactants are formulated in lotions to stably incorporate water-insoluble substances such as fragrances, oils, and oil-soluble drugs. For example, it has been proposed to formulate an alkylene oxide derivative having a specific structure as a surfactant (Patent Document 1).

[0003] Cyclic carboxamide derivatives have an effect of inhibiting heparanase activity, and for example, it has been proposed to be used as a wrinkle-improving agent or as a whitening agent effective for preventing or suppressing pigmentation such as spots (Patent Document 2). It has been found that cyclic carboxamide derivatives tend to cause stickiness when used in cosmetics, and it has been proposed to improve the usability by combining with specific emulsified particles (Patent Document 3).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

[0005] The inventors have surprisingly found that excellent usability can be achieved by using a cosmetic containing a combination of a cyclic carboxamide derivative or a salt thereof and a polyoxyalkylene dialkyldimer diol ether. The present invention is based on these findings.

[0006] According to the present invention, the following inventions are provided. [1] A cosmetic comprising: (A) a polyoxyalkylene dialkyldimer diol ether, (B) a cyclic carboxamide derivative represented by the formula (1) or a salt thereof, and (C) water. [Chemical formula] (In the formula, R 1 is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, X is -CH2- or -N(R 2 )-, where R 2 is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and n is an integer of 1 to 3) [2] The cosmetic according to [1], wherein R 1 is a hydroxyalkyl group having 1 to 3 carbon atoms, X is -CH2- or -NH-, and n is 1. [3] The cosmetic according to [1] or [2], wherein the component (B) is 1-(2-hydroxyethyl)-2-imidazolidinone. [4] The cosmetic according to any one of [1] to [3], wherein the component (A) is PEG / polybutylene glycol-44 / 15 methyl ether hydrogenated dimer dilinoleyl. [5] The cosmetic according to any one of [1] to [4], wherein the blending amount of the component (A) is 0.01 to 1% by mass based on the total amount of the cosmetic. The cosmetic according to any one of [1] to [5], wherein the blending amount of the component (B) is 0.5 to 5% by mass based on the total amount of the cosmetic. The cosmetic according to any one of [1] to [6], wherein the blending ratio of the component (A) and the component (B) is (A):(B) = 1:2 to 1:20 in terms of mass ratio. The cosmetic according to any one of [1] to [7], wherein the blending amount of the component (D) oil is 0% by mass or more and 1% by mass or less based on the total amount of the cosmetic. The cosmetic according to any one of [1] to [8], which is an aqueous cosmetic.

[0007] According to the present invention, a cosmetic having excellent usability can be provided. In particular, stickiness can be suppressed after application, and a moist feeling can be imparted. DETAILED DESCRIPTION OF THE INVENTION

[0008] The present invention relates to a cosmetic comprising (A) polyoxyalkylene dialkyldimer diol ether, (B) a cyclic carboxamide derivative having a specific structure or a salt thereof, and (C) water.

[0009] (A) Polyoxyalkylene dialkyldimer diol ether The cosmetic according to the present invention comprises (A) polyoxyalkylene dialkyldimer diol ether.

[0010] The component (A) is preferably represented by the following formula. Z-{О-[(AO) a -(EO) b -R}2 In the formula, Z is a residue obtained by removing a hydroxyl group from a dimer diol, preferably a dimer diol residue having 24 to 48 carbon atoms. AO is an oxyalkylene group having 3 or 4 carbon atoms, preferably an oxypropylene group or an oxybutylene group, more preferably an oxybutylene group. The addition form of the oxyalkylene group having 3 or 4 carbon atoms and the oxyethylene group is a block, and the addition order is preferably bonded in the order of AO and EO with respect to the dimer diol. a and b are the average number of moles of addition of the oxyalkylene group and the oxyethylene group, respectively, where 1 ≦ 2×a ≦ 150 and 1 ≦ 2×b ≦ 150. Preferably, 2 ≦ 2×a ≦ 70 and 5 ≦ 2×b ≦ 120. More preferably, 2 ≦ 2×a ≦ 50 and 10 ≦ 2×b ≦ 100. The proportion of the oxyethylene group with respect to the total of the oxyalkylene group and the oxyethylene group is 10 to 99% by mass, preferably 20 to 70% by mass. Each R is independently a hydrocarbon group having 1 to 4 carbon atoms, preferably a methyl group or an ethyl group.

[0011] Component (A) is preferably polyoxyethylene polyoxybutylene dimethyl dimer diol ether, more preferably PEG / polybutylene glycol-44 / 15 methyl ether hydrogenated dimer dilinoleyl.

[0012] One or more kinds of component (A) can be blended. The blending amount of component (A) is preferably 0.01 to 1% by mass, more preferably 0.05 to 0.8% by mass, and even more preferably 0.1 to 0.6% by mass with respect to the total amount of the cosmetic.

[0013] (B) Cyclic carboxamide derivative or a salt thereof The cosmetic according to the present invention comprises a cyclic carboxamide derivative represented by the formula (1) or a salt thereof as component (B).

Chemical formula

[0014] In a preferred embodiment, in formula (1), R 1 is a hydroxyalkyl group having 1 to 3 carbon atoms, X is -CH2- or -NH-, and n is 1. Specific examples of the cyclic carboxamide derivative represented by formula (1) include, for example, the following.

Chemical formula

[0015] Component (B) may be a salt of the cyclic carboxamide derivative represented by formula (1). The type of the salt is not particularly limited as long as it is a pharmacologically acceptable salt, and may be an inorganic salt or an organic salt. Examples of the inorganic salt include hydrochloride, sulfate, phosphate, hydrobromide, sodium salt, potassium salt, magnesium salt, calcium salt, magnesium salt, ammonium salt and the like. Examples of the organic salt include acetate, lactate, maleate, fumarate, tartrate, methanesulfonate, p-toluenesulfonate, triethanolamine salt, amino acid salt and the like.

[0016] One or more kinds of component (B) can be blended. The blending amount of component (B) is preferably 0.5 to 5% by mass, more preferably 0.75 to 4% by mass, still more preferably 1 to 3.5% by mass, and most preferably 1.4 to 3% by mass with respect to the total amount of the cosmetic.

[0017] (A) component and (B) component are in a compounding ratio by mass, preferably (A):(B) = 1:2 to 1:20, more preferably (A):(B) = 1:2.5 to 1:14, still more preferably (A):(B) = 1:3.5 to 1:10, and most preferably 1:4.5 to 1:10.

[0018] (C) Water The cosmetic according to the present invention contains (C) water. As the water, water used in cosmetics, quasi-drugs, etc. can be used. For example, purified water, ion-exchanged water, tap water, etc. can be used. The compounding amount of water is preferably 50 to 80% by mass based on the total amount of the cosmetic according to the present invention.

[0019] (D) Oil The cosmetic according to the present invention may contain (D) oil. From the viewpoint of stability, it is preferable that the compounding amount of (D) oil is small. The compounding amount of oil is preferably 0% by mass or more and 1% by mass or less, more preferably 0% by mass or more and 0.1% by mass or less, based on the total amount of the cosmetic. That the cosmetic according to the present invention does not contain oil (0% by mass) is also a preferred embodiment of the present invention. Examples of (D) component include silicone oil, hydrocarbon oil, higher fatty acid, higher alcohol, ester oil, liquid oil, solid oil, semi-solid oil, etc.

[0020] In addition to the above components, optional components usually used in cosmetics and pharmaceuticals can be compounded in the cosmetic of the present invention. Examples of the optional components include humectants, lower alcohols, thickeners, sequestering agents, neutralizing agents, pH adjusters, antioxidants, preservatives, drugs, ultraviolet absorbers, powder components, fragrances, etc. As long as the effects of the present invention are exhibited, one kind or two or more kinds can be compounded.

[0021] The cosmetic according to the present invention is preferably an aqueous cosmetic. In particular, the effects of the present invention are preferably exhibited when it is made into a transparent or translucent aqueous cosmetic such as lotion. The viscosity of the cosmetic according to the present invention is not limited, but is usually 1000 mPa·s or less, particularly preferably 500 mPa·s or less, which is preferable in terms of skin compatibility. In the present invention, "transparent or translucent" means that the L value in the Lab color system (Hunter Lab system) of the cosmetic is 50 or more. The L value is a value representing the transparency when the transparency of purified water is set to 100 and the case where there is no light transmission at all is set to 0. That is, the closer the L value is to 100, the higher the transparency. The L value can be measured using, for example, a color difference meter (such as Spectro color meter SE2000 (manufactured by Nippon Denki Shokai Co., Ltd.) or COLOR-EYE 7000A (manufactured by Gretag Macbeth)).

[0022] Examples of the cosmetic according to the present invention include skin care cosmetics (such as lotion, essence, pack, etc.), skin cleansing agents (such as facial wash, makeup remover, etc.). However, these forms are merely examples, and the cosmetic according to the present invention is not limited to these forms.

[0023] The cosmetic of the present invention can be produced according to a conventional method. When the cosmetic according to the present invention is an emulsion cosmetic, the emulsification method is not particularly limited.

Examples

[0024] The present invention will be specifically described based on the following examples, but the present invention is not limited to these examples. Unless otherwise specified, the content is shown as mass% based on the total amount.

[0025] [Examples 1 to 4 and Comparative Examples 1 to 3] Aqueous cosmetics of Examples 1 to 4 and Comparative Examples 1 to 3 were prepared with the formulations shown in Table 1.

Table 1

[0026] The cosmetic prepared above was applied to the skin by 10 professional panelists, and the "absence of stickiness" and "moistness" after application were evaluated. Based on the evaluations of each professional panelist, the determination was made according to the following criteria. The results obtained were as shown in Table 1. [Absence of stickiness] A: Seven or more out of 10 panelists answered that there was no stickiness. B: Five or six out of 10 panelists answered that there was no stickiness. C: Three or four out of 10 panelists answered that there was no stickiness D: Two or fewer out of 10 panelists answered that there was no stickiness. [Moistness] A: Seven or more out of 10 panelists answered that they felt moistness. B: Five or six out of 10 panelists answered that they felt moistness. C: Three or four out of 10 panelists answered that they felt moistness D: Two or fewer out of 10 panelists answered that they felt moistness.

Claims

1. (A) Polyoxyalkylene dialkyl dimer diol ether, (B) A cyclic carboxamide derivative represented by formula (1) or a salt thereof, and (C) Water A cosmetic composition comprising the same. 【Chemical 1】 (In the formula, R １ is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, X is -CH ２ - or -N(R ２ )-, where R ２ is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and n is an integer from 1 to 3)

2. R １ is a hydroxyalkyl group having 1 to 3 carbon atoms, X is -CH ２ - or -NH-, and The cosmetic composition according to claim 1, wherein n is 1.

3. The cosmetic composition according to claim 1 or 2, wherein component (B) is 1-(2-hydroxyethyl)-2-imidazolidinone.

4. The cosmetic composition according to claim 1 or 2, wherein component (A) is PEG / polybutylene glycol-44 / 15 methyl ether hydrogenated dimer dilinoleyl.

5. The cosmetic composition according to claim 1 or 2, wherein the content of component (A) is 0.01 to 1% by mass based on the total amount of the cosmetic composition.

6. The cosmetic composition according to claim 1 or 2, wherein the content of component (B) is 0.5 to 5% by mass based on the total amount of the cosmetic composition.

7. The cosmetic composition according to claim 1 or 2, wherein the mixing ratio of component (A) and component (B) is (A):(B)=1:2 to 1:20 by mass ratio.

8. The cosmetic composition according to claim 1 or 2, wherein the content of component (D) (oil) is 0% by mass or more and 1% by mass or less based on the total amount of the cosmetic composition.

9. The cosmetic composition according to claim 1 or 2, which is an aqueous cosmetic.

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