JP3342505B2 - Keratin plug remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug removing agent which can remove plugs formed in pores well.

[0002]

2. Description of the Related Art One of the most recent problems in the skin of women is the appearance of pores. This is largely due to the horn plug formed in the pores. The keratin plugs are dirt and dirt together with sebum, and are keratinized and clogged in the pores. Leaving the keratin not only makes the pores noticeable but also causes various troubles on the skin. Therefore, removing the keratotic plug is preferable for cosmetics and skin health.

[0003] However, the face plugs and makeup removers usually used cannot sufficiently remove the keratotic plug. On the other hand, the peel-off type pack agent is applied to the skin, peels off from the skin after drying, and polyvinyl alcohol, polyvinyl pyrrolidone, and the like are used as a film forming agent used for this. However, those containing a nonionic polymer as a main component are not sufficient for removing dirt from pores which are difficult to remove, and have little effect particularly on removing keratotic plugs.

[0004] Accordingly, there has been a demand for a plug removal agent capable of effectively removing a plug.

[0005]

Means for Solving the Problems In view of such circumstances, the present inventors have conducted intensive studies and as a result, have found that a keratotic plug removing agent comprising a polymer compound having a salt-forming group and a pigment can be effectively used as a corn plug removing agent. The present inventors have found that plugs and dirt are removed and completed the present invention.

That is, the present invention relates to (a) a polymer compound obtained by polymerizing a monomer having a sulfonic acid residue, an amino group or an ammonium group [provided that the polymer compound has the following general formula:

Embedded image Wherein R ₁ is alkylene or hydroxyalkylene, R ₂ and R ₅ are hydrogen or alkyl, R ₃ and R ₄ are alkyl, X is an inorganic anion, and A represents amide nitrogen or oxygen. Groups (a), (b),
(C) does not include a vinyl ester polymer containing 0.1 to 30 mol% of one or more cationic groups selected from (c) and (d) or a saponified product of the polymer]. A poultice coated with a composition containing 70% by weight, (b) a pigment containing 0.1 to 70% by weight, and (c) water.
Te, subjected adhered to the skin, after drying, there is provided a keratotic plugs removal agent to be used is peeled off from the skin.

[0007]

[0008] These polymer compounds are preferably water-soluble for aesthetic reasons, but may be water-insoluble as long as they are uniformly dispersed.

Specific examples of such a high molecular compound include one obtained by polymerizing one or more of the following monomers, or a vinyl ester of an aliphatic carboxylic acid such as vinyl acetate or an aliphatic carboxylic acid such as vinyl acetate; ) Acrylates, alkyl vinyl ethers such as methyl vinyl ether, N-vinyl cyclic amides such as N-vinyl pyrrolidone, copolymers with other general monomers having no salt-forming group such as styrene and alkyl-substituted styrene,
Further, a mixture of these polymers may be mentioned.

Anionic: Styrenesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid (AMPS)
And their salts.

Cationic: Dialkylamino groups such as dimethylaminoethyl acrylate (DMAEA), dimethylaminoethyl methacrylate (DMAEMA), acrylamidopropyltrimethylammonium chloride (DMAPAAm), dimethylaminopropyl methacrylamide (DMAPMAAm) and oxyethyltrimethyl methacrylate (Meth) acrylic acid esters or (meth) acrylamides; styrenes having dialkylamino groups such as dimethylaminostyrene (DMASt) and dimethylaminomethylstyrene (DMAMSt); vinyls such as 4-vinylpyridine and 2-vinylpyridine Pyridines; or those obtained by quaternizing these with a known quaternizing agent such as alkyl halide, benzyl halide, alkyl or aryl sulfonic acid or dialkyl sulfate.

Zwitterionic: N- (3-sulfopropyl)
-N-acryloyloxyethyl-N, N-dimethylammonium betaine, N- (3-sulfopropyl) -N
-Methacrylamidopropyl-N, N-dimethylammonium betaine, N- (3-carboxymethyl) -N
-Methacryloylamidopropyl-N, N-dimethylammonium betaine, N- (3-sulfopropyl) -N-
Methacryloyloxyethyl-N, N-dimethylammonium betaine, N-carboxymethyl-N-methacryloyloxyethyl-N, N-dimethylammonium betaine.

When the salt-forming groups of these polymer compounds are not ionized, an existing acid such as hydrochloric acid,
Inorganic salts such as sulfuric acid; organic acids such as acetic acid, propionic acid, lactic acid, succinic acid, and glycolic acid, or bases such as tertiary amines such as trimethylamine and triethylamine; Is preferred.

Among these high molecular compounds, those which are excellent in both of low irritation to the skin and high keratotic plug removal effect are those obtained by polymerizing one or more cationic monomers. Or a copolymer of these monomers with a zwitterionic monomer or another general monomer having no salt-forming group, and a mixture of these polymers.

Among the cationic monomers, preferred is dimethylaminoethyl acrylate (D
MAEA), dimethylaminoethyl methacrylate (DMAEM
A), dimethylaminopropylacrylamide (DMAPAAm)
, Dimethylaminopropyl methacrylamide (DMAPMAA
(meth) acrylic acid esters or (meth) acrylamides having a dialkylamino group such as m); or a known quaternizing agent such as alkyl halide, benzyl halide, alkyl or aryl sulfonic acid or dialkyl sulfate. And quaternized, and further,
Particularly preferred are dimethylaminoethyl methacrylate (DMAEMA) and its quaternary products; dimethylaminopropyl methacrylamide (DMAPMAAm) quaternary products, or those obtained by polymerizing one or more of these monomers,
Alternatively, a copolymer of one or more of these monomers with the above-described monomers, or a mixture thereof may be used.

The molecular weight of these high molecular compounds is
Those having a range of 10,000 to 3,000,000 are preferable, and especially 100,000 to
One million is preferred. When the molecular weight is less than 10,000, the strength of the formed film is insufficient, the tension on the skin is weakened, and the film is easily broken at the time of peeling.
Manufacturing of more than ten thousand is difficult.

The amount of the polymer compound used in the keratotic plug remover of the present invention is 0.01 to 70% by weight, particularly 5 to 40% by weight.
It is preferable that

The above-mentioned polymer compound is used by dissolving it in a solvent. The solvent is volatile as long as it can stably dissolve the polymer compound and is safe for the skin. Without limitation, for example, water, ethanol, isopropyl alcohol (IPA), etc. alone or in combination of two or more
Used in combination . The amount of the solvent may be appropriately determined depending on the polymer compound, optional components, and dosage form.
Generally, it is preferably from 30 to 99.89% by weight, particularly preferably from 59 to 94% by weight.

The pigment used in the present invention is not particularly limited, and any of inorganic and organic pigments can be used. The inorganic pigments, such as zinc oxide, titanium oxide, silica, alumina, barium sulfate, zirconium oxide, calcium carbonate, calcium silicate, ceramics, hydroxyapatite, boron nitride, sericite, mica, talc, kaolin, Monmori b Knight, Hekutorai door, saponite, iron black, yellow iron oxide, red iron oxide, Prussian blue, ultramarine blue, carbon black, pearl pigments and the like;
As the organic type, for example, silk powder, cellulose powder, poly (meth) acrylate resin, polyamide resin, polyolefin resin, polyimide resin, polyurethane resin, polyester resin, polyether resin,
Polyvinyl chloride resin, urea resin, polyformamide resin, polycarbonate resin, polyvinyl acetate resin, polyvinylidene chloride resin, polyacrylonitrile resin, polysulfone resin, polystyrene resin, polyurea resin, silicone resin, melamine resin, polytetrafluoroethylene resin, Lake pigments, azo dyes and the like. The particle size of these pigments is 0.001 to 1000 μm, especially 0.0
It is preferably in the range of 1 to 500 μm. 0.001
If it is less than μm, the dispersibility will be poor, and if it exceeds 1000 μm, there will be a sense of incongruity during coating, which is not preferred. Further, as the pigment, if necessary, a complex of one or more of these pigments can be used.

These pigments can be used alone or in combination of two or more, and it is preferable to add 0.1 to 70% by weight, particularly 1 to 40% by weight in the total composition.

In addition to the above-mentioned components,
Components used in ordinary cosmetics, for example, ethylene glycol, diethylene glycol, triethylene glycol, higher polyethylene glycols, propylene glycol, dipropylene glycol, higher polypropylene glycols, 1,3-butylene glycol, 1,4 -Butylene glycols such as butylene glycol, glycerin, diglycerin, and higher polyglycerins, sorbitol, mannitol, xylitol, sugar alcohols such as maltitol, glycerin ethylene oxide (hereinafter abbreviated as EO), propylene oxide ( Hereinafter, abbreviated as PO) adduct, sugar alcohol EO,
Monosaccharides such as PO adducts, galactose, glucose and fructose and their EOs, polysaccharides such as PO adducts, maltose and lactose and polyhydric alcohols such as EO and PO adducts;
Liquid paraffin, squalane, petrolatum, solid paraffin and other hydrocarbons, olive oil, jojoba oil, evening primrose oil, coconut oil, natural oils such as tallow, isopropyl myristate, cetyl isooctanoate, neopentyl glycol dicaprate, tri-2 Glycerol ethylhexanoate,
Ester oils such as 1-isostearoyl-3-myristoyl glycerol and 2-ethylhexanoic acid diglyceride, silicon oils such as methylsilicon, methylphenylsilicone, 1-hexyl-3-undecamethylhexasiloxypropynylglycerol, isostearic acid, and olein Higher fatty acids such as acids; oily components such as alcohols such as hexadecyl alcohol and oleyl alcohol; POE
Alkyl ether, POE branched alkyl ether, POE sorbitan ester, POE glycerin fatty acid ester, P
Surfactants such as OE hydrogenated castor oil, sorbitan ester, glycerin fatty acid ester, polyglycerin fatty acid ester; drugs such as vitamins, anti-inflammatory agents, bactericides, activators, ultraviolet absorbers; carrageenan, xanthan gum, sodium alginate, pullulan, Polysaccharides such as methylcellulose, carboxymethylcellulose, hydroxyethylcellulose and hydroxypropylcellulose, and other polymers such as carboxyvinyl polymer, polyvinylpyrrolidone, and other synthetic polymers such as polyvinyl alcohol are appropriately blended within a range that does not impair the effects of the present invention. can do. Among these components, when an oil component is blended, the peel strength of a film formed upon drying can be adjusted, and the film can be peeled well without causing irritation to the skin.
Further, it is preferable that the polyhydric alcohol is incorporated at 0.01 to 50% by weight in the whole composition.

The dosage form of the keratotic plug removal agent of the present invention is
Besides, it may be applied as a poultice to a woven fabric such as a cotton cloth, a staple cloth, a tetron, a nylon, or a plastic sheet. Ma
Example of removing a keratotic plug using the keratotic plug removing agent of the present invention
For example, the above pack or cataplasm is applied to the skin (eg, nose, forehead,
Apply or paste to the area where horn plugs such as jaws exist) and dry
Later, it may be peeled off from the skin.

[0023]

The keratotic plug removing agent of the present invention can effectively remove keratotic plugs, so that pores are less noticeable,
The inside of the pores can be kept clean and the skin is not hurt.

[0024]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto.

Example 1 A plug removing agent having the composition shown in Table 1 was produced by a conventional method, and the plug removing ability was evaluated. Table 2 shows the results. (Evaluation method) 0.1ml of keratotic plug remover to panelists after face washing
/ Cm ² , left at 25 ° C. and 50% humidity for 30 minutes, and then peeled off. The number of persons applying the product of the present invention on the left and the comparative product on the right and the number of persons applying the product of the present invention on the left and the comparative product on the right were made substantially the same. At the time of peeling, the number of persons who answered that "the product of the present invention was better", "the product of the present invention and the comparative product were similar", and "the better of the comparative product" was expressed in%.

[0026]

[Table 1]

[0027]

[Table 2]

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (2)

(57) [Claims] (1) A polymer compound obtained by polymerizing a monomer having a sulfonic acid residue, an amino group or an ammonium group [provided that the polymer compound has the following general formula: Wherein R ₁ is alkylene or hydroxyalkylene, R ₂ and R ₅ are hydrogen or alkyl, R ₃ and R ₄ are alkyl, X is an inorganic anion, and A represents amide nitrogen or oxygen. Groups (a), (b),
(C) does not include a vinyl ester polymer containing 0.1 to 30 mol% of one or more cationic groups selected from (c) and (d) or a saponified product of the polymer]. A poultice coated with a composition containing 70% by weight, (b) a pigment containing 0.1 to 70% by weight, and (c) water.
Te, subjected adhered to the skin, after drying, keratotic plugs removal agent to be used is peeled off from the skin. 2. A denoted bonded a keratotic plug removal agent according to claim 1 to the skin,
A method of removing keratin plugs by peeling from the skin after drying.