Cream mist cosmetics

Abstract

To provide a cream mist cosmetic that has excellent mist property, is hard to drip after application, not sticky, and hard to be attached to clothing.SOLUTION: A cream mist cosmetic contains: (A) a copolymer of one or more kinds of monomer selected from (meth)acrylic acid and (meth)acrylic acid alkyl and (meth)acrylic acid polyoxyalkylene alkyl ether by 0.01 to 1 mass%; (B) an ester compound of saturated fatty acid having the carbon number 8 to 20 and tetrahydric to hexahydric alcohol having the carbon number 5 to 10 by 0.5 to 5 mass%; (C) an ester compound of saturated fatty acid having the carbon number 8 to 14 and monohydric alcohol having the carbon number 12 to 20 by 0.5 to 10 mass%; and (D) a copolymer of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate which has molar ratio 100:1 to 1:3 of 2-methacryloyloxyethyl phosphorylcholine unit: butyl methacrylate unit by 0.001 to 0.1 mass%.SELECTED DRAWING: None

Description

Technical Field

[0003]

[0001] The present invention relates to a cream mist cosmetic. Here, the "cream mist cosmetic" means a cosmetic in a cream form that can be sprayed in a mist form and returns to a cream form on the application surface.

Background Art

[0002] Mist cosmetics are preferred because they are easy to apply without the hassle of reapplication, can be easily reapplied over makeup, and can be easily applied over a wide area without soiling the hands. However, mist cosmetics have a problem in that when sprayed multiple times, the discharged material tends to drip as droplets.

[0003] In Patent Document 1, a gel mist cosmetic containing a thickener and a surfactant, having a viscosity of 1000 to 20000 mPa·s, discharged in a mist form during spraying, and returning to a gel form on the application surface is disclosed. This gel mist cosmetic has characteristics such as being less likely to drip and having high adhesion to the skin, but was insufficient in terms of non-stickiness.

[0004] In Patent Document 2, a gel mist cosmetic containing xanthan gum and polyacrylate crosspolymer-6 is disclosed. This gel mist cosmetic has characteristics such as being able to be discharged in a mist form, being less likely to drip, and being non-sticky. However, even though it is in a gel form, since it is sprayed in a fine mist form, the ease of volatilization cannot be sufficiently suppressed and it has not reached a satisfactory level.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] Cream mist cosmetics that have been improved to be less volatile are beginning to attract attention. However, cream mist cosmetics have the challenge of being difficult to spray in a fine mist. Furthermore, it has been found that when clothing is worn after applying cream mist cosmetics, friction with the clothing can cause the cosmetics to adhere to the clothing. Therefore, there is a need for cream mist cosmetics that have good misting properties, do not drip easily after application, are not sticky, and do not adhere easily to clothing.

[0007] In view of the above problems, the present invention aims to provide a cream mist cosmetic that has good mist properties, does not drip easily after application, is not sticky, and does not easily adhere to clothing. [Means for solving the problem]

[0008] As a result of diligent research by the inventors, we have found that the above objective can be achieved by combining components (A) to (D) in predetermined amounts. Based on this finding, the present invention is as follows.

[0009] [1] (A) A copolymer of one or more monomers selected from (meth)acrylic acid and alkyl (meth)acrylic acid and polyoxyalkylene alkyl ether of (meth)acrylic acid, in an amount of 0.01 to 1% by mass, (B) 0.5 to 5% by mass of an ester compound of a linear or branched saturated fatty acid having 8 to 20 carbon atoms and a tetrahydric alcohol having 5 to 10 carbon atoms. (C) 0.5 to 10% by mass of an ester compound of a linear or branched saturated fatty acid having 8 to 14 carbon atoms and a linear or branched monohydric alcohol having 12 to 20 carbon atoms, and (D) 0.001 to 0.1% by mass of a copolymer of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate, with a molar ratio of 2-methacryloyloxyethyl phosphorylcholine units to butyl methacrylate units of 100:1 to 1:3. A cream mist cosmetic containing [ingredient name].

[0010] The reference for the content of components (A) to (D) in the cream mist cosmetic of the present invention is the entire cream mist cosmetic. [Effects of the Invention]

[0011] According to the present invention, a cream mist cosmetic is obtained that has good misting properties, does not drip easily after application, is not sticky, and does not easily adhere to clothing. [Modes for carrying out the invention]

[0012] The cream mist cosmetic composition of the present invention contains the following components (A) to (D).

[0013] <(A) component> Component (A) used in the cream mist cosmetic composition of the present invention is a copolymer of one or more monomers selected from (meth)acrylic acid and alkyl (meth)acrylate and a polyoxyalkylene alkyl ether of (meth)acrylate. Component (A) may be a random copolymer, a block copolymer, or an alternating copolymer.

[0014] In this specification, "(meth)acrylic acid" basically means "acrylic acid or methacrylic acid," and if both acrylic acid and methacrylic acid may be present, it means "acrylic acid and / or methacrylic acid." "(meth)acrylate alkyl," etc., have the same meaning as "(meth)acrylic acid." Also, "(meth)acrylate polyoxyalkylene alkyl ether" means "an ester of (meth)acrylic acid and a polyoxyalkylene alkyl ether."

[0015] Examples of component (A) include (acrylates / ceteth-20 methacrylate) copolymer, (acrylates / steareth-20 methacrylate) copolymer, (acrylates / steareth-25 methacrylate) copolymer, (acrylates / steareth-50 methacrylate) copolymer, (acrylates / beheneth-25 methacrylate) copolymer, (acrylates / steareth-20 methacrylate) crosspolymer, and (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer. From the viewpoint of fine mist, (acrylates / beheneth-25 methacrylate) copolymer is preferred.

[0016] Component (A) may be used alone or in combination of two or more types. The content of component (A) in the cream mist cosmetic of the present invention is 0.01 to 1% by mass, preferably 0.05 to 0.8% by mass, and more preferably 0.1 to 0.5% by mass. If the content is less than 0.01% by mass, the resistance to dripping after spraying may be insufficient, and if the content exceeds 1% by mass, the non-stickiness and resistance to adhering to clothing may decrease.

[0017] <(B) component> Component (B) used in the cream mist cosmetic composition of the present invention is an ester compound of a linear or branched saturated fatty acid having 8 to 20 carbon atoms and a tetrahydric alcohol having 5 to 10 carbon atoms.

[0018] Examples of linear or branched saturated fatty acids having 8 to 20 carbon atoms include 2-ethylhexanoic acid, lauric acid, myristic acid, palmitic acid, isopalmitic acid, stearic acid, isostearic acid, and 12-hydroxystearic acid. From the viewpoint of being less likely to adhere to clothing, 2-ethylhexanoic acid and 12-hydroxystearic acid are preferred, and 12-hydroxystearic acid is more preferred.

[0019] Examples of tetrahydric alcohols with 5 to 10 carbon atoms include pentaerythritol, dipentaerythritol, and sorbitol.

[0020] (B) component includes, for example, dipentaerythrityl hexahydroxystearate, pentaerythrityl tetrastearate, pentaerythrityl tetraisostearate, pentaerythrityl tetraethylhexanoate, etc. Among these, dipentaerythrityl hexahydroxystearate (i.e., hexahydroxyester of 12-hydroxystearic acid and dipentaerythritol) and pentaerythrityl tetraethylhexanoate (i.e., tetraester of 2-ethylhexanoic acid and pentaerythritol) are preferred.

[0021] (B) component may be used alone or in combination of two or more. The content of (B) component in the cream mist cosmetic of the present invention is 0.5 to 5% by mass, preferably 0.8 to 4% by mass, more preferably 1.0 to 3% by mass. If this content is less than 0.5% by mass, the resistance to dripping after spraying and the resistance to adhering to clothes will be insufficient. If this content exceeds 5% by mass, the fineness of the mist may decrease. ​​​​​​​​​​​​​​​​Examples of component (C) include cetyl ethylhexanoate, stearyl ethylhexanoate, myristyl myristate, isostearyl myristate, and octyldodecyl myristate. Among these, cetyl ethylhexanoate (i.e., an ester of 2-ethylhexanoic acid and cetanol) is preferred.

[0026] Component (C) may be used alone or in combination of two or more types. The content of component (C) in the cream mist cosmetic of the present invention is 0.5 to 10% by mass, preferably 0.8 to 8% by mass, and more preferably 1.0 to 5% by mass. If the content is less than 0.5% by mass, the fineness of the mist may be insufficient, and if the content exceeds 10% by mass, the resistance to adhesion to clothing may be insufficient.

[0027] <(D) component> Component (D) used in the cream mist cosmetic composition of the present invention is a copolymer of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate, wherein the molar ratio of 2-methacryloyloxyethyl phosphorylcholine units to butyl methacrylate units is 100:1 to 1:3. Component (D) may be a random copolymer, a block copolymer, or an alternating copolymer. Component (D) is preferably a random copolymer.

[0028] In this specification, "2-methacryloyloxyethyl phosphorylcholine unit" means a constituent unit derived from 2-methacryloyloxyethyl phosphorylcholine, and "butyl methacrylate unit" means a constituent unit derived from butyl methacrylate.

[0029] The molar ratio of 2-methacryloyloxyethyl phosphorylcholine units to butyl methacrylate units in component (D) is 100:1 to 1:3, preferably 10:1 to 1:1, and more preferably 5:1 to 2:1, from the viewpoint of non-stickiness. This molar ratio can be calculated, for example, from the amount of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate charged during the production of component (D).

[0030] The weight-average molecular weight of component (D) is preferably 50,000 to 1,000,000, more preferably 200,000 to 800,000, and even more preferably 400,000 to 700,000, from the viewpoint of fine mist and resistance to adhesion to clothing. This weight-average molecular weight can be calculated by GPC (gel permeation chromatography).

[0031] Component (D) may be used alone, or two or more components with different molar ratios may be used in combination. The content of component (D) in the cream mist cosmetic of the present invention is 0.001 to 0.1% by mass, preferably 0.001 to 0.05% by mass, and more preferably 0.005 to 0.05% by mass. If the content is less than 0.001% by mass, the resistance to adhesion to clothing may be insufficient, and if the content exceeds 0.1% by mass, the fineness of the mist may be insufficient.

[0032] <Other ingredients> The cream mist cosmetic composition of the present invention may contain other components different from those described above, as long as they do not impair the effects of the present invention. The other components are not particularly limited as long as they are components that are generally contained in cream mist cosmetics, and examples include surfactants, oily components, alcohols, sugars, amino acids, preservatives, antioxidants, antibacterial agents, fragrances, pH adjusters, and pharmaceuticals other than those described above. From the viewpoint of mist properties, the total content of the other components is preferably 0 to 50% by mass, more preferably 0 to 40% by mass, and even more preferably 0 to 30% by mass of the entire cream mist cosmetic composition.

[0033] <Water> The cream mist cosmetic composition of the present invention preferably contains water as the remainder of the above-mentioned components (A) to (D) and other components as optional. [Examples]

[0034] Examples 1-9 and Comparative Examples 1-4 Each component shown in Table 1 was mixed to produce a cream mist cosmetic containing each component in the amounts shown in Table 1. Table 2 shows the contents of the common components used in Examples 1-9 and Comparative Examples 1-4 (types and amounts of other components in the common components). Note that the contents shown in Tables 1 and 2 are relative to the entire cream mist cosmetic.

[0035] The copolymer (I) used in Example 1, etc. (component (D) in Table 1) was a random copolymer of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate, with a molar ratio of 2-methacryloyloxyethyl phosphorylcholine units to butyl methacrylate units of 4:1 and a weight-average molecular weight of 600,000. The copolymer (II) used in Example 7 (component (D) in Table 1) was a random copolymer of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate, with a molar ratio of 2-methacryloyloxyethyl phosphorylcholine units to butyl methacrylate units of 3:7 and a weight-average molecular weight of 100,000.

[0036] The obtained cream mist cosmetic was evaluated for (1) mist properties, (2) resistance to dripping after application, (3) non-stickiness, and (4) resistance to adhering to clothing, as follows. The results are shown in Table 1.

[0037] (1) Mist properties Ten panelists (aged 24-59) visually inspected the mist properties of 0.3g of cream mist cosmetic, dispensed into a spray bottle (Takemoto Container Co., Ltd.: Compact Trigger; the same spray bottle was used hereafter), and evaluated it according to the evaluation criteria below. The total scores of the ten panelists were calculated and judged according to the judgment criteria below. <Evaluation Criteria> Points 2: It was dispensed in a fine mist. 1 point: Discharged in a mist. 0 points: Discharged in a straight line, not as a mist. <Judgment criteria> ◎: Total score of 15 points or more; a cream mist cosmetic with good mist properties. ○: Total score is 10 points or more and less than 15 points; it is a cream mist cosmetic with moderately good mist properties. △: Total score is 5 points or more but less than 10 points; it is a cream mist cosmetic with slightly poor misting properties. ×: Total score is less than 5 points; it is a cream mist cosmetic with poor misting properties.

[0038] (2) Less likely to drip after application Ten participants (aged 24-59) served as panelists. 0.3g of cream mist cosmetic, filled into a spray bottle, was dispensed onto their forearms. The degree to which the cream mist cosmetic dripped when the applied surface on the forearm was held vertically was observed and evaluated according to the following evaluation criteria. The total scores of the ten participants were calculated and judged according to the following judgment criteria. <Evaluation Criteria> Points 2: The cream mist cosmetic did not drip. 1 point: The cream mist cosmetic product dripped slightly. 0 points: The cream mist cosmetic dripped. <Judgment criteria> ◎: Total score of 15 points or more; a cream mist cosmetic that does not easily drip after application. ○: Total score is 10 points or more and less than 15 points; it is a cream mist cosmetic that is slightly less likely to drip after application. △: Total score is 5 points or more but less than 10 points; it is a cream mist cosmetic that tends to drip slightly after application. ×: Total score is less than 5 points; it is a cream mist cosmetic that tends to drip after application.

[0039] (3) Non-sticky Ten panelists (aged 24-59) participated in a sensory evaluation of the non-stickiness of 0.3g of cream mist cosmetic, dispensed from a spray bottle onto their forearms. The evaluation was conducted according to the following criteria, and the total scores from the ten participants were calculated and judged according to the following criteria. <Evaluation Criteria> 2 points: It wasn't sticky. 1 point: Slightly sticky. 0 points: It was sticky. <Judgment criteria> ◎: Total score of 15 points or more; a non-greasy cream mist cosmetic. ○: Total score is 10 points or more, but less than 15 points; it is a slightly non-greasy cream mist cosmetic. △: Total score is 5 points or more but less than 10 points; it is a slightly sticky cream mist cosmetic. ×: Total score is less than 5 points; it is a sticky cream mist cosmetic.

[0040] (4) Less likely to stick to clothing Ten participants (aged 24-59) served as panelists. They dispensed 0.3g of cream mist cosmetic from a spray bottle onto their forearms. Sixty seconds after dispensing, they visually observed how the cream mist cosmetic adhered to clothing when the applied forearm was rubbed against the clothing. They evaluated the results according to the evaluation criteria below, and the total scores from the ten participants were calculated and judged according to the judgment criteria below. <Evaluation Criteria> 2 points: No cosmetics got on the clothing. 1 point: Some cosmetic residue was found on the clothing. 0 points: Cosmetics got on the clothing. <Judgment criteria> ◎: Total score of 15 points or more; a cream mist cosmetic that is less likely to adhere to clothing. ○: Total score is 10 points or more, but less than 15 points; it is a cream mist cosmetic that is less likely to adhere to clothing. △: Total score is 5 points or more but less than 10 points; it is a cream mist cosmetic that tends to adhere to clothing. ×: Total score is less than 5 points; it is a cream mist cosmetic that easily adheres to clothing.

[0041] [Table 1]

[0042] [Table 2] [Industrial applicability]

[0043] The cream mist cosmetic of the present invention is useful in the field of cosmetics because it has good misting properties, does not drip easily after application, is not sticky, and does not easily adhere to clothing.

Claims

1. (A) A copolymer of one or more monomers selected from (meth)acrylic acid and alkyl (meth)acrylate and polyoxyalkylene alkyl ether of (meth)acrylate in an amount of 0.01 to 1% by mass, (B) 0.5 to 5% by mass of an ester compound of a linear or branched saturated fatty acid having 8 to 20 carbon atoms and a tetrahydric alcohol having 5 to 10 carbon atoms. (C) 0.5 to 10% by mass of an ester compound of a linear or branched saturated fatty acid having 8 to 14 carbon atoms and a linear or branched monohydric alcohol having 12 to 20 carbon atoms, and (D) 0.001 to 0.1% by mass of a copolymer of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate, where the molar ratio of 2-methacryloyloxyethyl phosphorylcholine units to butyl methacrylate units is 100:1 to 1:

3. A cream mist cosmetic containing [ingredient name].

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