JPH10298029A - Solubilized cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic that shows good solubilization stability with time and gives no greasy feeling with no use of surfactant by using a solubilizer comprising specific compound and a gummy matter. SOLUTION: (A) A solubilizer comprising (i) an alkyl-modified carboxyvinyl polymer of alkyl acrylate and a methacrylate copolymer and (ii) a gummy matter such as xanthan gum, guar gum or gum arabic is used to solubilize (B) perfumes, pharmaceuticals or an oil such as natural animal or vegetable oil, higher alcohols, silicone oil, vitamins and vitamin-like active substances and (C), when necessary, a powder component, a moisturizer, a thickener, an organic solvent, an antioxidant, an antiseptic agent, a colorant, purified water are added thereto to give the objective cosmetic. The amount of (i) and (ii) in the component A is preferably 0.0001-1 wt.% and 0.001-5 wt.%, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solubilized cosmetic composition, and more particularly to a solubilized cosmetic composition having excellent long-term stability and no stickiness without using a surfactant.

[0002]

2. Description of the Related Art Conventionally, cosmetics in which fragrances, drugs or oils which are hardly soluble in water are solubilized have been widely used. In order to obtain such a cosmetic, it has been essential to use a surfactant in order to guarantee the stability of the cosmetic over time.

[0003] In recent years, however, further safety has been expected for cosmetics, and from this viewpoint, the formulation of a surfactant may be a problem. Therefore, a method of obtaining a solubilized cosmetic without using a surfactant has also been proposed (Japanese Patent Application Laid-Open No. 2-196709).

[0004]

However, these solubilized cosmetics are not always satisfactory in terms of long-term stability of solubilization, and further have stickiness in useability and satisfactory useability. is not.

[0005] The inventors of the present invention have conducted various studies to solve the above-mentioned problems, and as a result, it has been found that the long-term stability of solubilization and the feeling of use are improved by blending an alkyl-modified carboxyvinyl polymer with gum. And completed the present invention.

[0006] That is, an object of the present invention is to provide a solubilized cosmetic having good solubilization stability over time and a non-sticky feeling without using a surfactant.

[0007]

Means for Solving the Problems The solubilized cosmetic of the present invention is characterized by containing an alkyl-modified carboxyvinyl polymer and a gum.

Further, it is characterized in that it contains substantially no surfactant.

Preferably, the compounding amount of the alkyl-modified carboxyvinyl polymer is 0.0001 to 1% by weight, and the compounding amount of the gum is 0.01 to 5% by weight.

The water-insoluble fragrance, drug or oil used in the present invention refers to those that are substantially insoluble or slightly soluble in water. Examples thereof include macadamia nut oil, evening primrose oil, olive oil, mink oil, jojoba oil, lanolin, natural animal and vegetable oils such as squalane, liquid paraffin, paraffin wax, carnauba wax and other waxes, cetanol, isocetanol, stearyl alcohol, Higher alcohols such as stearyl alcohol, myristic acid, valmitic acid, stearic acid,
Higher fatty acids such as pehenic acid, isostearic acid, oleic acid, linolenic acid, linoleic acid, linoleic acid, oxyacid, isopropyl myristic acid, isopropyl palmitic acid, isopropyl isostearic acid, esters such as glyceryl 2-ethylhexanoate, and other diethylene glycols Monopropyl ether, polyoxyethylene polyoxypropylene pentaerythritol ether,
Polar oils such as polyoxypropylene butyl ether and ethyl linoleate, silicone oils, vitamins such as vitamin A, vitamin D, vitamin E, tocopherol acetate, ascorbate, and vitamins such as γ-oryzanol and iodic acid, and vitamin-like effects. Substances, benzoic acid, estradiol, estradiol valerate, ethinyl estradiol, prostaglandins, holimons such as testosterone probionate, benzophenone,
4-t-butyl-4′-methoxy-dibenzoylmethane, dimethoxycinnamate ethylhexanoate glyceryl,
ultraviolet absorbers such as p-aminobenzoic acid ester, octyl paramethoxycinnamate, phenyl salicylate, etc .;
Antiphlogistics such as menthol and camphor, preservatives such as ethylparaben, propylparaben and butylparaben,
Disinfectants such as glycyrrhetinic acid, triclosan, dibutylhydroxytoluene, oil-soluble pigments such as oil red, naphthol yellow, tartrazine, paprika, and also linalool, linalool acetate as a flavor component,
Limonene, citrol, methylionone benzyl acetate, methyldehydrojasmonate, phenylethyl alcohol, musk ketone, sandalol, α-hexylcinnamic aldehyde, TEC, citronellol,
Crude drugs and the like.

The properties of these components that are hardly soluble in water may be liquid or crystalline, and may be single or a mixture of two or more.

The alkyl-modified carboxyvinyl polymer used in the present invention is an alkyl methacrylate copolymer, such as Carbopol 1342
Pemulen TR-1, Pemulen
n) What is known by trade name of TR-2 (manufactured by BF Goodrich) can be mentioned.

The compounding amount of the alkyl-modified carboxyvinyl polymer is preferably 0.0001 to 1% by weight, more preferably 0.001 to 0.5% by weight in the solubilized cosmetic. If it is less than 0.0001% by weight, it is difficult to solubilize, and if it exceeds 1% by weight, it is not preferable because it becomes sticky in terms of usability. 0.00 in terms of solubilizing power and usability
Most preferred is a range of 1-0.5% by weight.

It is to be noted that carboxyvinyl polymers usually used as a thickener (for example, Carbopol (Carbpol))
opol) 941 (BF Googrich), Hibiswako 1
05 (manufactured by Wako Pure Chemical Industries) cannot be solubilized.

[0015] The gum used in the present invention is not particularly limited. For example, Xanthomonas spp.
xanthan gum, which is a natural gum obtained by fermenting carbohydrates using monos campestris and purifying polysaccharides accumulated outside the cells (for example, Celtrol manufactured by Koei Kogyo Co., Ltd.), annual legumes Guar (Cyamopsis tetragonol
guar gum, gum arabic and the like, which are polysaccharides obtained from the endosperm part of the seeds of S. obus). The compounding amount is 0.
It is suitably from 0.01 to 5% by weight.

In the cosmetic of the present invention, in addition to the above essential components, other components usually used for cosmetics, pharmaceuticals and the like can be blended within a range not to impair the effects of the present invention. For example, titanium dioxide, mica, powder components such as talc, polyethylene glycol, glycerin, sorbitol, xylitol, humectants such as maltitol, methyl cellulose, ethyl cellulose, gum arabic, carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer,
Thickeners such as polyvinyl alcohol, montmorillonite, and laponite; organic solvents such as ethanol and 1,3-butylene glycol; antioxidants such as butylhydroxytoluene, tocopherol and phytic acid; benzoic acid, salicylic acid, sorbic acid, and paraoxybenzoic acid Antibacterial preservatives such as alkyl esters (ethylparaben, butylparaben, etc.), hexachlorophene, etc .; amino acids such as glycine, alanine, valine leucine, serine, threonine, phenylalanine, tyrosine, asparagine aspartate, glutamine, taurine, arginine, histidine and the like; Alkali metal salts and hydrochlorides, acyl sarcosine acids (eg sodium lauroylmethyl sarcosine etc.), organic acids such as glutathione, malic acid, tartaric acid, vitamin B ₆ hydrochloride, vitamin B ₂ and Beauty derivatives thereof, vitamin B such as vitamin B _12, vitamin B ₁₅ and its derivatives, ascorbic acid, ascorbic acid sulfate ester (salt), vitamin C such as ascorbic acid phosphate ester (salt), vitamin H, pantothenic acid, Vitamins such as pantethine, nicotinamide, benzyl nicotinate, allantoin, glycyrrhizic acid (salt), inositol, saponins (such as saikosaponin, carrot saponin, hemimasaponin, muclodisaponin, etc.), pantothenyl ethyl ether, placenta extract, arbutin , Tranexamic acid, etc., Rumex, Clara, Kouhone, Orange, Sage, Yarrow, Zeniaoi, Senkyu, Assembly, Thyme, Touki, Spruce, Birch, Horsetail, Loofah, Malonier, Yukinoshita, Arnica, Yuri , Mugwort,
Organic extracts of plants such as peonies, aloe and gardenia, alcohols, polyhydric alcohols, water, natural alcohols extracted with aqueous alcohols and the like, pigments, purified water and the like can be blended.

[0017]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.
In addition, about the compounding quantity, unless otherwise specified, it represents weight%.

(Examples 1 to 6, Comparative Examples 1 and 2) Various lotions shown in Table 1 were prepared by adding an alcohol phase to an aqueous phase, and the turbidity and the usability of the lotion were measured. An evaluation was performed. The measurement method and evaluation criteria were as follows.

[Turbidity measuring method] Turbidity was measured using a Poic integrating sphere turbidity meter (blackboard method). The lower the turbidity, the higher the transparency, and the higher the turbidity, the more turbid.

[Criteria for Stability Evaluation] ○: No oil floating is observed at all Δ: Oil floating is slightly observed ×: Oil floating is clearly observed [Usability Evaluation Criteria] Used by 10 beauty professional panels They were evaluated and evaluated according to the following criteria.

(Judgment Criteria) Effective: Not sticky Slightly effective: Slightly sticky, but within the range of no problem in use Invalid: Sticky (Evaluation) ○: 80% or more of subjects evaluated effective and somewhat effective : 50 to 8 subjects who evaluated effective and somewhat effective
Less than 0% ×: Less than 30% of subjects evaluated as effective and somewhat effective

[0022]

[Table 1]

As can be seen from Table 1, the lotion of Example 1 had low turbidity, good stability and little stickiness.

Example 7 Lotion A lotion having the composition shown in Table 2 was prepared by adding an alcohol phase to an aqueous phase. As in Example 1, the turbidity was low, the stability was good, and there was no stickiness.

[0025]

[Table 2] ─────────────────────────────────── Component content ─────── ──────────────────────────── A. Aqueous phase Ion-exchanged water Residue Polyethylene glycol 4000 2.0 1,3-butylene glycol 3.0 Dipropylene glycol 5.0 Citric acid 0.1 Sodium citrate 0.3 Sodium metaphosphate 0.1 Sodium hyaluronate 0. 05 Arbutin 5.0 Magnesium phosphate ascorbate 1.0 Aloe extract 0.3 Guar gum 0.05 Carrot extract 0.1 Alkyl-modified carboxyvinyl polymer 0.3 (Pemulen TR-1) KOH 0.2 Alcohol phase Ethyl alcohol 12.0 Methyl paraben 0.1 Phenoxyethanol 0.3 Photosensitizer 201 0.005 2-Ethylhexyl paraoxycinnamate 0.2 Vitamin A palmitate 0.05 Fragrance 0.01 ───────────────────────────

Example 8 Hair Tonic A hair tonic having the composition shown in Table 3 was prepared in the same manner as in Example 2. As in Example 1, the turbidity was low, the stability was good, and there was no stickiness.

[0027]

[Table 3] ─────────────────────────────────── Component content ─────── ──────────────────────────── A. Aqueous phase Ion exchange water Residue Glycerin 2.0 Lactic acid 0.01 Sodium lactate 0.5 Trisodium edetate 0.03 Tranexamic acid 2.5 Allantoin 0.1 Zinc paraphenolsulfonate 0.3 Hydroxypropyl-β-1 2.0 cyclodextrin dl-α-tocopherol 2-L 0.1-ascorbic acid phosphoric acid diester potassium salt xanthan gum 2.0 alkyl-modified carboxyvinyl polymer 0.5 (Carbopol 1342) KOH 0.3 Alcohol phase Ethanol 55.0 Oxybenzone 0.4 dl-α-tocopherol 0.2 Stearyl glycyrrhetinate 0.1 d-Camphor 0.5 Perfume 0.1 ───────────────────

Example 9 Transparent Essence Transparent essences having various compositions shown in Table 4 were prepared by stirring and dissolving an aqueous phase and adding an alcohol phase thereto. As in Example 1, the stability was good and the stickiness was low.

[0029]

[Table 4] ─────────────────────────────────── Component content ─────── ──────────────────────────── A. Aqueous phase Purified water Residue Polyethylene glycol 400 5.0 Propylene glycol 5.0 Xanthan gum 0.1 Glycolic acid 2.0 L-ascorbic acid 2-glucoside 1.0 Carboxyvinyl polymer 0.5 Alkyl-modified carboxyvinyl polymer 0.005 (Pemulen TR-2) KOH 0.2 hydroxymethoxybenzophenone 0.1 sodium sulfonate B. Alcohol phase Ethanol 10.0 4-tert-butyl-4'methoxybenzoylmethane 0.2 Tocopherol acetate 0.1 Methyl paraben 0.1 Fragrance 0.03───────────────── ──────────────────

[0030]

According to the present invention, that is, by blending an alkyl-modified carboxyvinyl polymer with gum, a sparingly water-soluble fragrance, drug or oil is stably solubilized,
It is possible to provide a solubilized cosmetic that is less sticky in terms of usability.

Claims (4)

[Claims] 1. A cosmetic obtained by adding and solubilizing a fragrance, a drug or an oil which is hardly soluble in water, wherein an alkyl-modified carboxyvinyl polymer is used as a solubilizer for a fragrance, a drug or an oil which is hardly soluble in water and a gum. And a solubilizing cosmetic. 2. The solubilized cosmetic according to claim 1, which does not substantially contain a surfactant. 3. The compounded amount of the alkyl-modified carboxyvinyl polymer is 0.0001 to 1% by weight.
Or the solubilized cosmetic according to claim 2. 4. The solubilized cosmetic according to any one of claims 1 to 3, wherein the compounding amount of the gum is 0.01 to 5% by weight.