JPH11217324A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic capable of suppressing the emission of a malodor with time in spite of being the cosmetic containing a silicone rubber powder containing a platinum-based catalyst and cross-linked by a hydrosilylating reaction, a polyether compound and water. SOLUTION: This cosmetic is characterized by including (A) a silicone rubber powder containing a platinum-based catalyst and cross-linked by a hydrosilylating reaction, (B) a polyether compound which is a polyether chain- containing silicone and (C) water. Furthermore, the characteristic of the cosmetic is to include a compound capable of reducing catalytic actions of the platinum- based catalyst contained in the ingredient (A), e.g. an amino group-containing silicone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to cosmetics, and more particularly to cosmetics containing a platinum-based catalyst, a silicone rubber powder crosslinked by a hydrosilylation reaction, a polyether compound, and water. Regardless, the present invention relates to a cosmetic in which generation of odor over time is suppressed.

[0002]

2. Description of the Related Art Silicone rubber powder obtained by crosslinking by a hydrosilylation reaction under the catalytic action of a platinum-based catalyst is used as a raw material for cosmetics. Such a silicone rubber powder is used as a polyether compound. And the cosmetics contained together with water have a problem that odor is generated over time.

[0003]

DISCLOSURE OF THE INVENTION The present inventors have intensively studied the above-mentioned problems, and as a result, have reached the present invention. That is, the object of the present invention is to generate a odor over time despite the cosmetic containing a platinum-based catalyst, a silicone rubber powder crosslinked by a hydrosilylation reaction, a polyether compound, and water. It is to provide a suppressed cosmetic.

[0004]

According to the present invention, at least
(A) a cosmetic containing a platinum-based catalyst, a silicone rubber powder crosslinked by a hydrosilylation reaction, (B) a polyether compound, and (C) water,
(D) A cosmetic comprising a compound which reduces the catalytic action of the platinum-based catalyst contained in the component (A).

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The cosmetic of the present invention will be described in detail. The component (A) is a silicone rubber powder containing a platinum-based catalyst and crosslinked by a hydrosilylation reaction. (A)
The average particle size of the components is not limited, but is preferably in the range of 0.1 to 500 μm, particularly 0.5 to 200 μm, since the feeling of use of the obtained cosmetic is good.
Is preferably within the range. The hardness of the silicone rubber forming the component (A) is not limited, but the cosmetics obtained have a good feeling of use.
The hardness (hereinafter referred to as JIS A hardness) measured by a spring-type hardness test (A type) specified in 6301 “Vulcanized Rubber Physical Test Method” is preferably 80 or less, and in particular, its JI
The SA hardness is preferably 65 or less.

The component (A) may contain a non-crosslinkable oil. Examples of the oil include silicone oils having a linear, partially branched linear, branched, or cyclic molecular structure; animal oils, vegetable oils, synthetic oils, and mineral oils. The viscosity of this oil is not limited, but it does not easily evaporate from the resulting silicone rubber powder,
In addition, it is preferably at least 0.5 centipoise at 25 ° C., and more preferably 1.0 to 50, at 25 ° C., since the obtained cosmetic can be provided with continuous water repellency.
It is preferably within the range of 100,000 centipoise at 25 ° C., and more preferably within the range of 1.0 to 1,000 centipoise at 25 ° C. Although the content of the oil is not limited, the obtained cosmetic can be provided with continuous water repellency, and the feeling of use of the obtained cosmetic is good. It is preferable that the amount is in the range of 1.0 to 5% by weight.
Preferably, the amount is in the range of 0% by weight.

The component (A) may contain a surfactant. Examples of the surfactant include primary to tertiary aliphatic amine salts, alkyltrimethylammonium salts, dialkyldimethylammonium salts, tetraalkylammonium salts, trialkylbenzylammonium salts, alkylpyridinium salts, N, N-dialkylmorpholine salts And cationic surfactants such as polyethylene polyamine fatty acid amide salts; fatty acid salts, alkyl benzene sulfonates, alkyl naphthalene sulfonates, α-olefin sulfates, dialkyl sulfosuccinates, α-sulfonated fatty acid salts, N-acyl- N-methyltaurine, alkyl sulfates, sulfated fats and oils, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, polyoxyethylene styrenated phenyl ether sulfate, alkyl phosphoric acid Anionic surfactants such as salts, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl phenyl ether phosphate, and naphthalene sulfonate formaldehyde condensate;
N, N-dimethyl-N-alkyl-N-carboxymethylammonium betaine, N, N-dialkylaminoalkylenecarboxylate, N, N, N-trialkyl-N
Zwitterionic surfactants such as -sulfoalkylene ammonium betaine, N, N-dialkyl-N, N-bispolyoxyethylene ammonium sulfate betaine, 2-alkyl-1-carboxymethyl-1-hydroxyethyl imidazolinium betaine A polyoxyethylene alkyl ether, a polyoxyethylene alkenyl ether, a polyoxyethylene alkyl phenyl ether, a polyoxyethylene polystyryl phenyl ether, a polyoxyethylene / polyoxypropylene glycol, a polyoxyethylene / polyoxypropylene alkyl ether, a sorbitan fatty acid ester Glycerin fatty acid ester, decaglycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol / pentaerythritol fatty acid Steal, polyhydric alcohol fatty acid partial esters such as propylene glycol / pentaerythritol fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene polyhydric alcohol fatty acid partial esters such as polyoxyethylene glycerin fatty acid esters, polyoxyethylene fatty acid esters, polyoxyethylene Nonionic surfactants such as glycerin fatty acid ester, polyoxyethylated castor oil, fatty acid diethanolamide, polyoxyethylene alkylamine, triethanolamine fatty acid partial ester, trialkylamine oxide, and two kinds of these surfactants The above mixtures are exemplified. The content of the surfactant is not limited, but is preferably in the range of 0.1 to 20% by weight of the component (A) because the affinity of the component (A) for water is good. In particular, 0.5 to 10% by weight of the component (A)
Is preferably in the range of

The surface of the component (A) may be coated with inorganic fine particles. Examples of the inorganic fine particles include metal oxide fine powders such as silicon oxide, titanium oxide, zinc oxide, aluminum oxide, zirconium oxide, and antimony oxide; metal nitride fine powders such as boron nitride and aluminum nitride; Fine powders and chloride fine powders are preferable, and metal oxide fine particles are preferable. further,
Silicon oxide fine particles, titanium oxide fine particles, and zinc oxide fine particles are particularly preferable because of their excellent dispersibility and ultraviolet absorption effect. In addition, these inorganic fine particles may be those whose surfaces have been previously treated with silicone, metal soap, N-acylglutamic acid, fluorine, or the like.

The component (B) is a polyether compound such as polyethylene oxide, polypropylene oxide, polybutylene oxide, polyoxyethylene.
Polyoxyalkylene oxides such as polyoxypropylene glycol; polyalkylene oxide ethers such as polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene / polyoxypropylene alkyl ether; polyoxyethylene sorbitan Esters of polyalkylene oxides such as fatty acid esters and polyoxyethylene glycerin fatty acid esters;
General formula:

Embedded image (Where m is a positive number, n is 0 or a positive number, x
Is a positive number, and y is 0 or a positive number. A) a polyether chain-containing silicone represented by the general formula:

Embedded image (Where m is a positive number, n is 0 or a positive number, x
Is a positive number, and y is 0 or a positive number. A) a polyether chain-containing silicone represented by the general formula:

Embedded image (Where m is a positive number, n is 0 or a positive number, y
Is 0 or a positive number. A) a polyether chain-containing silicone represented by the general formula:

Embedded image (Where m is a positive number, n is 0 or a positive number, y
Is 0 or a positive number. A) a polyether chain-containing silicone represented by the general formula:

Embedded image (Where m is a positive number, n is 0 or a positive number, x
Is a positive number, and y is 0 or a positive number. ), Wherein some of the methyl groups of these polyether chain-containing silicones are phenyl,
Silicones substituted with a 3,3-trifluoropropyl group, a hydroxyl group, a methoxy group, or an ethoxy group, and silicones in which a polyether chain terminal is blocked with a hydroxyl group are exemplified.

[0010] The water of component (C) is not limited, and is preferably purified water which is usually used in cosmetics.

Cosmetics containing at least the (A) component silicone rubber powder, the (B) component polyether compound and (C) water are well known. Examples of the dosage form of such a cosmetic include a solution, an emulsion, a cream, and a semi-solid. Examples of such cosmetics include perfumes, shampoos, rinses, facial cleansers, packs, lotions, creams, emulsions, cosmetic oils, foundations, lip balms, eye creams, eye shadows, eye liners, mascaras, nails Creams, nail enamels, antiperspirants, suntan (stop) lotions, antiperspirants, suntan (stop) creams, suntan (stop) oils, shaving lotions, shaving creams, bath cosmetics. Since the cosmetic of the present invention contains the silicone rubber powder of the component (A), it is particularly preferable for the cosmetic to have a refreshing and smooth feel, such as lotion, shaving lotion, acne lotion and aerosol. Skin care products such as; shampoo, rinse, hair care products such as hair styling products; cleansing agents, facial cleansers, cleaning agents such as body shampoos;
It is preferably a makeup cosmetic such as eyeshadow; an antiperspirant, a deodorant such as cologne or an aromatic.

Such cosmetics of the present invention include, as other components, extenders such as mica, talc, sericite, and nylon powder; inorganic pigments such as pearl; red 202, red b226, yellow 4, Organic pigments such as aluminum lake; may contain various inorganic powders such as zinc oxide, titanium oxide, zirconium oxide and iron oxide. Also,
The cosmetics of the present invention include silicone treatment, metal soap treatment,
It may contain an inorganic powder that has been subjected to N-acylglutamic acid treatment or fluorine treatment. The cosmetic of the present invention may contain an oil agent. Examples of the oil include hydrocarbons such as solid or liquid paraffin, crystal oil, ceresin, ozokerite, montan wax; vegetable oils such as olive, ground wax, carnauba wax, lanolin, whale wax, and animal fats and oils. Further, stearic acid, palmitic acid, oleic acid, glycerin monostearate, glycerin distearate, glycerin monooleate,
Fatty acids such as isopropyl myristate, isopropyl stearate, butyl stearate, dextrin fatty acid ester, and esters thereof; polydimethylsiloxane, octamethyltetrasiloxane, decamethylcyclopentasiloxane, volatile silicone oil, polymethyl Silicone oils such as phenylsiloxane; ethyl alcohol, isopropyl alcohol, cetyl alcohol, stearyl alcohol,
Alcohols such as palmityl alcohol and hexyl decyl alcohol. In addition, the cosmetic of the present invention may contain a polyhydric alcohol having a moisturizing effect, such as glycol, glycerin, and sorbitol. further,
The cosmetics of the present invention include known UV absorbers such as p-methylbenzylidene, camphor and its sodium sulfonate and organic acid sodium salts, benzophenones and esters, cosmetics, quasi-drugs, and external use It may contain preservatives, fragrances, pigments, pearlescent agents, coloring agents, antioxidants, thickeners, etc., which can be incorporated in pharmaceuticals.

Such a silicone rubber powder of at least the component (A), a polyether compound of the component (B),
In the cosmetic containing the component (C) water, the cosmetic of the present invention is characterized by further containing the compound of the component (D). The compound of the component (D) reduces the catalytic activity of the platinum catalyst contained in the component (A), and includes, for example, a compound containing a nitrogen atom, a phosphorus atom, or a sulfur atom, and an unsaturated group. Compounds (e.g., enein compounds, acetylene alcohols). Preferred are organic amine compounds containing a nitrogen atom, silicones containing an amino group, and phosphoric acid compounds containing a phosphorus atom, and more preferably organic compounds. An amine compound and an amino group-containing silicone are preferable, and an amino group-containing silicone is particularly preferable.

Examples of such organic amine compounds include 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl- Compounds that can be used as cosmetic raw materials, such as 1,3-propanediol, L-alanine, DL-alanine, allantoin, L-arginine, L-arginine L-aspartate, and triethanolamine alkyl sulfate are exemplified.

The amino group-containing silicone includes, for example, a compound represented by the following general formula:

Embedded image (Wherein p is 0 or 1, x is a positive number, and y is 0 or a positive number), a silicone represented by the general formula:

Embedded image (Wherein p is 0 or 1, and y is 0 or a positive number), an amino group-containing silicone represented by the general formula:

Embedded image (Wherein p is 0 or 1, and y is 0 or a positive number), an amino group-containing silicone represented by the general formula:

Embedded image (Wherein p is 0 or 1, x is a positive number, and y is 0 or a positive number), and a part of the methyl groups of these amino group-containing silicones. Examples include silicones substituted with a phenyl group, 3,3,3-trifluoropropyl group, a hydroxyl group, a methoxy group, and an ethoxy group.

In the cosmetic of the present invention, the content of the component (D) is not limited, but is an amount sufficient to reduce the catalytic action of the platinum-based catalyst contained in the component (A). When a compound containing a nitrogen atom, a phosphorus atom, or a sulfur atom or a compound containing an unsaturated group is used as the component, the platinum metal 1 in the platinum-based catalyst contained in the component (A) is used.
It is preferable that the amount of the nitrogen atom, the phosphorus atom, and the sulfur atom in the component (D) is 0.05 mol or more with respect to the mol, and further, the amount is such that these atoms are 0.1 mol or more. It is particularly preferable that these atoms are equimolar or more.

[0017]

EXAMPLES The cosmetic of the present invention will be described in more detail with reference to examples. In addition, the viscosity in an Example is a value measured at 25 degreeC. The properties of the silicone rubber powder and the presence or absence of odor of the cosmetic were measured as follows. [Average Particle Size of Silicone Rubber Powder] The average particle size of the silicone rubber powder was measured by an image processing device connected to an optical microscope. [Content of non-crosslinkable oil and surfactant contained in silicone rubber powder] 100 g of silicone rubber powder, 1000 g of toluene and 1000 g of isopropanol are added to a 5 L glass container, and the mixture is adjusted to 1000 rpm with a homodisper (manufactured by Tokushu Kikai Co., Ltd.). 10 minutes, 500 rpm
And then left for 12 hours. After 12 hours, the mixture is stirred at 500 rpm for 10 minutes, and then filtered through a 2 L sterile filter using a filter paper to collect a filtrate. Further, the powder remaining on the filter paper of the filter, 750 g of toluene and 750 g of isopropanol were mixed at 1000 rpm with a homodesper.
After mixing with stirring for / 10 minutes, the mixture is filtered through a 2 L sterile filter using a filter paper to collect the filtrate. All the filtrates were collected, and toluene and isopropanol were distilled off at 70 mmHg / 80 ° C. using an evaporator. The distillate was analyzed by gas chromatography and IR, and the residue was analyzed by proton NMR, G
After confirming the components by PC, IR, etc., the weight of each component was calculated. The non-crosslinked oil and surfactant are separated from the residue, and the viscosity of the oil is measured using a viscometer (VISCON manufactured by Tokyo Keiki Co., Ltd.).
IC). Further, the surfactant was separated from the residue, and its structure was confirmed. [Presence of Odor of Cosmetic] Cosmetic immediately after opening the lid was stored at 50 ° C. for 3 months and at 50 ° C. for 5 months in a state where 100 g of the cosmetic was sealed in a 325 ml glass bottle with a lid. The presence or absence of odor was judged by 10 panelists. When 7 to 10 panelists judged that an odor was generated, the evaluation was x, when 3 to 6 panelists were Δ, and when 0 to 2 panelists were evaluated as o.

Example 1 5 ppm by weight of platinum metal
JIS A hardness is 30 and average particle size is 4
μm, containing 2% by weight of a non-crosslinkable silicone oil of 20 centistokes, and containing 1% of a nonionic surfactant.
100 parts by weight of a silicone rubber powder crosslinked by a hydrosilylation reaction, containing 100% by weight

Embedded image Polyethylene oxide chain-containing silicone 5 represented by
0 parts by weight, 200 parts by weight of water, and the formula:

Embedded image 2 parts by weight of the amino group-containing silicone represented by the formula were stirred with a homodisper at 2500 rpm for 10 minutes to prepare an aqueous dispersion of silicone rubber powder. 57 parts by weight of an aqueous dispersion of this silicone rubber powder, 5 parts by weight of octyl p-methoxycinnamate, 1 part by weight of α-monoisostearyl glyceryl ether polyoxyethylene sorbitan monooleate, 2 parts by weight of beeswax, 2 parts by weight of lanolin , Squalane, 10 parts by weight of liquid paraffin, 15 parts by weight of purified water, an appropriate amount of preservative, and an appropriate amount of perfume were stirred with a homodisper at 2500 rpm for 5 minutes to prepare an emulsion cosmetic. The presence / absence of odor of this cosmetic over time was evaluated, and the results are shown in Table 1.

Example 2 In Example 1, the silicone rubber powder contained 3 ppm of platinum metal by weight, had a JIS A hardness of 30, and had an average particle diameter of 4 μm.
The emulsion cosmetic was prepared in the same manner as in Example 1 except that a silicone rubber powder crosslinked by a hydrosilylation reaction was used in which the content of the non-crosslinkable oil and the surfactant was 0.5% by weight or less. Prepared. The presence / absence of odor of this cosmetic over time was evaluated, and the results are shown in Table 1.

Comparative Example 1 An emulsion cosmetic was prepared in the same manner as in Example 1 except that the amino group-containing silicone oil was not blended. The presence / absence of odor of this cosmetic over time was evaluated, and the results are shown in Table 1.

Example 3 5 ppm by weight of platinum metal
JIS A hardness is 30 and average particle size is 4
μm, containing 2% by weight of a non-crosslinkable silicone oil of 20 centistokes, and containing 1% of a nonionic surfactant.
100% by weight of a silicone rubber powder crosslinked by a hydrosilylation reaction, the surface of which is coated with 4% by weight of amorphous silica fine particles.

Embedded image Polyethylene oxide chain-containing silicone 5 represented by
0 parts by weight, 200 parts by weight of water and 1 part by weight of 2-amino-2-methyl-1-propanol were stirred with a homodisper at 2500 rpm for 10 minutes to prepare an aqueous dispersion of silicone rubber powder. 57 parts by weight of an aqueous dispersion of this silicone rubber powder, 5 parts by weight of octyl p-methoxycinnamate, 1 part by weight of α-monoisostearyl glyceryl ether polyoxyethylene sorbitan monooleate, 2 parts by weight of beeswax, 2 parts by weight of lanolin , Squalane, 10 parts by weight of liquid paraffin, 15 parts by weight of purified water, an appropriate amount of preservative, and an appropriate amount of perfume were stirred with a homodisper at 2500 rpm for 5 minutes to prepare an emulsion cosmetic. The presence / absence of odor of this cosmetic over time was evaluated, and the results are shown in Table 1.

Comparative Example 2 An emulsion cosmetic was prepared in the same manner as in Example 3 except that 2-amino-2-methyl-1-propanol was not used. The presence / absence of odor of this cosmetic over time was evaluated, and the results are shown in Table 1.

[0023]

[Table 1]

[0024]

The cosmetic of the present invention contains (A) a silicone rubber powder crosslinked by a hydrosilylation reaction containing a platinum-based catalyst, (B) a polyether compound, and (C) water. Nevertheless, since it contains a compound that reduces the catalytic action of the platinum-based catalyst contained in the components (D) and (A), the generation of odor over time is suppressed.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuo Kobayashi 2-2 Chikusa Beach, Ichihara-shi, Chiba Prefecture Toray Dow Corning Silicone Co., Ltd. 2 Toray Dow Corning Silicone Co., Ltd.

Claims (4)

[Claims] (1) At least (A) containing a platinum-based catalyst,
Cosmetics containing silicone rubber powder crosslinked by a hydrosilylation reaction, (B) a polyether compound, and (C) water, and further comprising (D) a platinum-based catalyst contained in (A) component A cosmetic comprising a compound that reduces the action. 2. The cosmetic according to claim 1, wherein the component (B) is a polyether chain-containing silicone. 3. The cosmetic according to claim 1, wherein the component (D) is an organic amine compound. 4. The cosmetic according to claim 1, wherein the component (D) is an amino group-containing silicone.