JP3518116B2 - Aerosol composition - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an aerosol composition suitable for hair cosmetics. More specifically, it relates to an aerosol composition in which a stock solution and a propellant form a uniform liquid phase.

[0002]

2. Description of the Related Art Conventionally, foam aerosol products have been widely used as one of the product forms of cosmetics such as hair cosmetics. Most of such foam aerosol products are prepared by filling a pressure resistant container with an aerosol composition comprising an aqueous stock solution containing a hair treatment agent and a propellant such as liquefied petroleum gas (LPG) such as butane and propane. is there.

By the way, since LPG is insoluble in water,
It usually does not dissolve in the stock solution. Therefore, the aerosol composition in the pressure resistant container is a separated three-phase system composed of a liquid phase consisting of a raw liquid phase and an LPG phase above it, and a vaporized petroleum gas phase.

Therefore, in order to stably discharge the aerosol composition both compositionally and foamy from such a pressure-resistant container, it is necessary to shake the container sufficiently immediately before use so that the LP
A very troublesome operation of making the G phase into very small droplets and sufficiently dispersing them in the stock solution is required. However, such a shaking operation varies in degree depending on the user, and in some cases, the discharging operation of the aerosol composition may be performed without shaking at all. Therefore, instead of bubbles, the undiluted solution itself is discharged as a liquid,
There is a problem that the initial foam quality and foam stability cannot be realized due to the imbalance of the mixing ratio between the stock solution and the propellant for obtaining the optimum foam quality.

Recently, the size of the aerosol product itself has been increased, thereby increasing the filling amount of the aerosol composition per container to reduce the usage cost per time, and the aerosol product itself can be used as a stationary type. Is required to do so.

Therefore, it is strongly demanded that such a foamed aerosol product can stably discharge the filled aerosol composition as a homogeneous foam without performing a shaking operation. It has become.

[0007] Conventionally, as a method to meet the above demands, a uniform liquid phase was prepared between the stock solution and the propellant by using water-soluble dimethyl ether (DME) instead of LPG as the propellant, and LPG particles were used. In the undiluted solution, a mixed surfactant combining a triethanolamine fatty acid salt with a higher alcohol or a fatty acid, or a mixed surfactant combining sodium sulfate and a higher alcohol, or a nonionic surfactant and a higher alcohol. Alternatively, it is known to disperse strongly with a mixed surfactant combined with a fatty acid.

However, when DME is used as the propellant, there is a problem that bubbles having good shape retention cannot be obtained. Further, when the LPG particles are dispersed in the stock solution by the mixed surfactant as described above, the liquid phase is gradually separated into a liquefied petroleum gas phase and a stock solution phase rather than a semipermanently stable and uniform liquid phase. There was a problem of doing.

In order to solve these problems, it has been proposed that an undiluted solution is composed mainly of aminomethyl propanol or aminomethyl propanediol, a higher fatty acid salt and, if necessary, a nonionic surfactant. (Kaisho 63-41586).

[0010]

However, in the case of the stock solution disclosed in JP-A-63-41586, LPG as the propellant is uniformly dissolved or dispersed in the liquid phase (stock solution). Therefore, there was a problem that a large amount of surfactant had to be used. Therefore, when the undiluted solution disclosed in JP-A-63-41586 is applied to foamy hair cosmetics containing a film-forming polymer or the like, excessive slimyness or stickiness on hands and hair is caused. There have been problems in terms of feeling such as occurrence of hair loss, and problems in hair styling performance such as plasticizing a film-forming polymer to reduce its film-forming ability.

The present invention is intended to solve the problems of the conventional techniques as described above, and a relatively small amount of a surfactant is used to form a uniform and stable liquid solution with a propellant consisting of liquefied petroleum gas. An object of the present invention is to provide an aerosol composition which constitutes a phase and can stably and uniformly discharge foam without performing a shaking operation.

[0012]

The inventors of the present invention have found that a stock solution of higher alcohol, a surface-active agent, ethanol and water makes it possible to reduce the content of the surface-active agent as compared with the conventional method. Regardless, wide temperature range (about 5-40 ℃
Temperature range), the propellant can be uniformly and stably dissolved or solubilized in the stock solution, so that the aerosol composition can be discharged from the pressure resistant container in a homogeneous foam state without performing a shaking operation. Heading out, the present invention has been completed.

That is, the present invention is an aerosol composition containing a propellant and a stock solution, wherein the propellant and the stock solution form a uniform liquid phase, which comprises the following components: (A) myristyl alcohol 0 1 to 1% by weight; (B) surfactant 0.5 to 5% by weight; (C) ethanol 20 to 30% by weight; and (D) water 50 to 90% by weight, and (E) Ri Do and a propellant containing a liquefied petroleum gas, injection
At least 50 wt% of Ysaÿe provides a Ru aerosol composition der liquefied petroleum gas. Further, the present invention is an aerosol composition containing a propellant and a stock solution, wherein the propellant and the stock solution form a uniform liquid phase, the composition comprising: (A) a higher alcohol; (B) Surfactant; (C) Ethanol; (F) An organopolysiloxane having at least one of the silicon atoms at the terminal or side chain of the organopolysiloxane segment via an alkylene group containing a hetero atom, the following formula ( 1)

[Chemical 3] (In the formula, R ¹ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, a cycloalkyl group, an aralkyl group or an aryl group, and n represents a number of 2 or 3.).
An acylpolyalkyleneimine) -bonded organopolysiloxane; and (D) a stock solution of water, and (E) a propellant containing liquefied petroleum gas.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.

The higher alcohol as the component (A) used in the aerosol composition of the present invention has 8 to 2 carbon atoms.
Mention may be made of 2, preferably 12 to 18 straight or branched chain saturated or unsaturated alcohols. Of these, linear and saturated higher alcohols are preferable from the viewpoint of easy availability. In this case, two or more higher alcohols may be used in combination. Specific examples of such higher alcohols include lauryl alcohol, myristyl alcohol,
Examples thereof include cetyl alcohol and stearyl alcohol. Of these, myristyl alcohol, which has high emulsion stability, is preferable.

If the blending amount of the higher alcohol of the component (A) in the stock solution is too small, the solubilization of the propellant is insufficient,
If the amount is too large, further improvement of the solubilizing effect cannot be expected, and moreover, slimyness or stickiness occurs, so the content is preferably 0.1 to 1.0% by weight, preferably 0.2 to 0.6% by weight.

As the surfactant as the component (B), a cationic surfactant conventionally used in cosmetics and the like,
Anionic surfactants and amphoteric surfactants can be appropriately selected and used, but nonionic surfactants that are difficult to react with other additive components can be preferably used. Examples of such nonionic surfactants include those represented by the formula (2)

[0018]

Embedded image R- (OCH ₂ CH ₂ ) _n —OH (wherein R is a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, and n is the number of repeating polyoxyethylene groups) And preferably a number of 1 to 50). Specific examples of such polyoxyethylene alkyl ether include polyoxyethylene (5EO) lauryl ether, polyoxyethylene (23EO) lauryl ether, polyoxyethylene (7EO) cetyl ether, and polyoxyethylene (1
3EO) cetyl ether, polyoxyethylene (6E
O) Stearyl ether, polyoxyethylene (12E
O) Stearyl ether, polyoxyethylene (13E
O) oleyl ether and the like can be mentioned. These may be used in combination of two or more.

If the content of the component (B) surfactant in the stock solution is too small, the solubilization of the propellant will be insufficient, and if it is too large, further improvement of the solubilization effect cannot be expected. Since it becomes sticky, it is preferably 0.5.
To 5.0% by weight, preferably 1.0 to 3.0% by weight.

If the amount of the component (C) ethanol blended in the stock solution is too small, the solubilization of the propellant will be insufficient, and if it is too large, the disappearance rate of the foam will be too fast. %, Preferably 20 to 30% by weight.

The content of the component (D) in the stock solution of water is preferably 50 to 90% by weight, more preferably 60.
~ 80% by weight.

In the present invention, the component (E) LPG is used as the propellant, but it may be used in combination with DME. In this case, if the ratio of DME is too high, the retention of bubbles is reduced, so the ratio of LPG to DME is from 100: 0.
The ratio is preferably 50:50. Is preferred.

In the aerosol composition of the present invention, a stock solution of components (A) to (D) and LP of component (E)
The amount of the propellant composed of G is 2 to 20 parts by weight of the propellant with respect to 80 to 98 parts by weight of the undiluted solution, since a good foam quality foam cannot be obtained if the undiluted solution is too much or too little. Parts by weight, more preferably 4 to 12 parts by weight of propellant with respect to 88 to 96 parts by weight of stock solution.

The aerosol composition of the present invention comprises the above-mentioned components (A) to (E) as essential components, but in order to obtain stability in a wider temperature range and a better feel during use, Further, as the component (F), intramolecular and intermolecular cross-links due to bonds other than covalent bonds are generated, and the relative humidity is 6 at a temperature of 20 ° C.
An organopolysiloxane that does not fracture or plastically deform at an elongation rate of 5% in the range of 0 to 15%, and is an alkylene containing a hetero atom in at least one of the silicon atoms at the terminal or side chain of the organopolysiloxane segment. The following formula (1)

[0025]

[Chemical 5] (In the formula, R ₁ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, a cycloalkyl group, an aralkyl group or an aryl group, and n represents a number of 2 or 3.).
It is preferable to contain an organopolysiloxane having an (acylalkyleneimine) segment bonded thereto. Further, by incorporating the polyorganosiloxane of the component (F) into the aerosol composition, even if the blending amount of the surfactant of the component (B) is reduced, uniform liquid phase formation between the stock solution and the propellant is inhibited. You can choose not to.

If the amount of the polyorganosiloxane as the component (F) to be blended in the stock solution is too small, the effect of addition will not be obtained, and if it is too large, an effect commensurate with the amount of addition cannot be expected, and therefore, it is preferably 0.01-. The amount is 5.0% by weight, more preferably 0.1 to 3.0% by weight.

The organopolysiloxane as the component (F) is described in, for example, paragraph 0 of JP-A-7-133352.
It can be produced by the method described in 035 to 0042.

When the aerosol composition of the present invention is used as a hair cosmetic composition, it is preferable to further contain a film-forming polymer as the component (G). Thereby, the setting power as a hair cosmetic can be improved. As such a film-forming polymer, an amphoteric polymer, an anionic polymer, a cationic polymer or a nonionic polymer, which is a film-forming polymer used in ordinary hair cosmetics, can be appropriately selected and used.

Specific examples of the amphoteric polymer include:
Yuka Former AM-75, AM75S / SM (above,
Monochloroacetic acid amphoteric compound of dimethylaminoethyl methacrylate / alkyl methacrylate copolymer such as Mitsubishi Chemical Co .; Unformer 28-4910, LV
Examples thereof include hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymers such as -71 (above, manufactured by National Starch).

Specific examples of the anionic polymer include Gantrez ES-225, ES-425 and SP-215.
(Above, manufactured by ISP) and the like; methyl vinyl ether / maleic anhydride alkyl half ester copolymer; Resin 2
Vinyl acetate / crotonic acid copolymers such as 8-1310 (manufactured by National Starch) and Rubiset CA (manufactured by BASF); Vinyl acetate / crotonic acid / neodecanoic acid such as resin 28-2930 (manufactured by National Starch) Vinyl copolymer; vinyl acetate / crotonic acid / vinyl propionate copolymer such as Rubiset CAP (manufactured by BASF);
Vinyl acetate / maleic acid monobutyl ester / isoboronyl acrylate copolymer such as ADVANTAGE-CP (manufactured by ISP); plus size L53P (manufactured by Mutual Chemical), diamond hold (manufactured by Mitsubishi) Acrylic acid / (meth) acrylic acid ester copolymer; acrylic acid / acrylic acid alkyl ester / such as Ultrahold 8, Ultrahold Strong (manufactured by BASF), Amphomer V-42 (manufactured by National Starch), etc. Alkyl acrylamide copolymer; polyvinylpyrrolidone / acrylate / (meth) acrylic acid copolymer such as Rubiflex VBM35 (manufactured by BASF) and the like can be mentioned.

Specific examples of the cationic polymer include Rubicut FC370, FC550, FC905, HM55.
2, vinylimidazolium trichloride / vinylpyrrolidone copolymers such as MonoCP (above manufactured by BASF); hydroxyethyl cellulose / dimethyldiallylammonium such as Cellcut H-100, L-200 (above manufactured by National Starch) Chloride copolymer; vinylpyrrolidone / quaternized dimethylaminoethyl methacrylate copolymer such as Gaffcut 734, 755N, 755 (above, manufactured by ISP); Rubiflex (BASF
Polyvinylpyrrolidone / dimethylaminoethyl methacrylate copolymer; copolymer 845, 93
Polyvinylpyrrolidone / alkylaminoacrylate / vinylcaprolactam copolymer such as 7,958 (all manufactured by GAF); vinylpyrrolidone / methacrylamidopropyl trimethylammonium chloride copolymer such as Gaffcut HS-100 (manufactured by ISP); 2-18091
Examples thereof include alkyl acrylamide / acrylate / alkylaminoalkyl acrylamide / polyethylene glycol methacrylate copolymers such as the water-soluble polymer compounds described in JP-A-1.

Specific examples of nonionic polymers include Rubiscol K-12, 17, 30, 60, 80 and 90 (all manufactured by BASF), PVP K-15, 30, and 60.
Polyvinylpyrrolidone such as 90 (above, manufactured by ISP);
Rubiscol VA28, 37, 55, 64, 73 (all manufactured by BASF), PVP / VA-735, 535,
Polyvinylpyrrolidone / vinyl acetate copolymers such as 335, 235 and S-630 (all manufactured by ISP); polyvinylpyrrolidone / vinyl acetate / vinyl propionate terpolymers such as rubiscol VAP343 (manufactured by BASF); Examples thereof include vinyl acetate / N-vinyl-5-methyl-2-oxazoline copolymers such as Dowlex (manufactured by Dow Chemical Co.).

If the amount of the film-forming polymer as the component (G) to be blended in the stock solution is too small, the setting force is not sufficient, and if it is too large, the hair becomes stiff and the feel thereof is deteriorated. To 20 parts by weight, more preferably 0.05 to 10 parts by weight.

The aerosol composition of the present invention preferably contains an oil agent as component (H), if necessary. As a result, it is possible to improve the usability such as the feeling of slippage and the feeling of moistness. In particular, when the aerosol composition of the present invention is used as a hair cosmetic composition, it can impart a preferable feel (slip feeling, moist feeling, softness, etc.) to hair.

As such an oil agent, those used in ordinary cosmetics can be appropriately selected and used. For example, hydrocarbons such as petrolatum, ceresin, solid paraffin, liquid paraffin and squalane; olive oil , Natural animal and vegetable oils and fats such as jojoba oil, lanolin, castor oil, cacao oil and mink fat; higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, coconut oil fatty acid; ethylene glycol, propylene glycol, glycerin, diglycerin , Polyhydric alcohols such as pentaerythritol and sorbitol; synthetic ester oils such as octyldodecyl myristate, isopropyl myristate and isopropyl palmitate; silicone derivatives such as dimethylpolysiloxane and methylphenylpolysiloxane; Such as de derivatives can be mentioned.

If the amount of the oil solution of the component (H) in the stock solution is too small, the effect of addition is not sufficient, and if it is too large, a sticky feeling is produced. Therefore, it is preferably 0.01 to 5 parts by weight, more preferably Is 0.1 to 2 parts by weight.

To the aerosol composition of the present invention, in addition to the above-mentioned components, various additive components used in ordinary cosmetics may be added, if necessary, within a range that does not impair the effects of the present invention. You can For example, surfactants other than component (B), moisturizers such as polyglycerin fatty acid ester, bactericides such as triclosan and trichlorocarbanilide, anti-inflammatory agents such as potassium glycyrrhizinate, tocopherol acetate, zinc pyrithione, octopirox, etc. Anti-dandruff agents, preservatives such as methylparaben and butylparaben, ethylenediaminetetraacetic acid or salts thereof, chelating agents such as hydroxyethanediphosphonic acid or salts thereof, pH adjusters such as citric acid and succinic acid, salts such as sodium chloride In addition, pearling agents, fragrances, dyes, ultraviolet absorbers, antioxidants and the like can be added.

The aerosol composition of the present invention can be manufactured by a conventional method. For example, the components (A), (B),
It can be produced by filling (C), (D) and (E) and, if necessary, other components in a pressure resistant container for aerosol and shaking sufficiently until the liquid phase becomes uniform.

[0039]

EXAMPLES The present invention will be specifically described below with reference to examples.

Examples 1 to 2 and Comparative Examples 1 to 5 The components of the formulations shown in Tables 1 and 2 were placed in a pressure-resistant transparent glass container for aerosol injection and shaken sufficiently until the liquid phase became a transparent homogeneous phase. By doing so, an aerosol composition was produced.

Regarding the obtained aerosol composition, "solubility of solubilized state of propellant", "foam quality and foam stability (initial and 30% remaining time)", "feel" (on hands and hair) ) ”And“ holding power for hair ”were tested and evaluated as shown below. The obtained results are shown in Tables 1 and 2.

(1) "Solubilized State Stability of Propellant" Test After thoroughly shaking, the mixture was left standing for 24 hours, and the aerosol composition in a transparent glass container was visually observed, and the state was evaluated according to the following evaluation criteria. evaluated.

Solubilized state of propellant Stability evaluation rank Rank state ○: When the propellant is completely dissolved in the stock solution and a transparent uniform liquid phase is formed ×: The propellant is separated from the stock solution, When the phase is separated into two layers

(2) "Foam quality and foam stability" test After being sufficiently shaken, it is allowed to stand for 24 hours, and immediately thereafter (the initial stage) and immediately without shaking, the aerosol composition is intermittently discharged to form an aerosol composition. The foam quality and stability of the foam obtained at the time when the remaining amount of 30% was 30% were evaluated by a professional panelist according to the following evaluation criteria.

Foam quality evaluation criteria Rank: Condition O: When the foam is fine and has a good appearance. X: When the foam is not fine and the appearance is poor.

Foam Stability Evaluation Criteria ○: When the duration of the foam after discharging and foaming is 1 minute or more ×: When the duration of the foam after discharging and foaming is less than 1 minute

(3) "Feeling (on hand and on hair)" test The feeling when 0.2 g of foam was acclimated on the hand was sensory evaluated by a specialized panelist according to the following evaluation criteria. In addition, the feel when the same amount of foam was applied to the hair was sensory evaluated by a specialized panelist according to the following evaluation criteria.

Feeling evaluation criteria on hand Rank condition ○: When slimy or sticky is not a concern Δ: When slimy or sticky is a little worrisome ×: When slimy or sticky is concerned

Feeling evaluation standard rank on hair Condition ◎: When feeling better than uncoated hair ○: When feeling similar to uncoated hair Δ: Slightly slimy or sticky compared to uncoated hair When sticky ×: When it is slimy or sticky compared to uncoated hair

(4) "Holding power for hair" test A hair bundle having a length of 18 cm and a weight of 2.0 g is wetted with water, wound on a rod (diameter 2 cm) and dried to give curled hair. Each of the hair cosmetics was sprayed or applied and naturally dried. Then, the rod was removed from the curled hair bundle, and the curled hair was hung under high humidity (98%) conditions for 30 minutes to observe the curl elongation, and the set holding power was determined according to the following evaluation criteria. .

The determination is made by measuring the diameter of the curl of the hair, and setting the curl diameter when the curl diameter is removed after spraying from the rod is 100% for the set holding force and the curl diameter is 0, that is,
When the hair became the original length (18 cm), the set holding power was set to 0%.

“Set holding power” evaluation criteria Rank condition ◎: 81% or more ○: 61-80% △: 51-60% ×: 0-50%

The components * 1 and * 2 used in Table 1 are as follows. * 1: N-propionylethyleneimine-dimethylsiloxane copolymer produced by Synthesis Example 1 of JP-A-7-133352 * 2: Rubiscol VA55E, manufactured by BASF

[0054]

Table 1 (wt%) Example components 12 Myristyl alcohol 0.6 0.2 Polyoxyethylene (12EO) stearyl ether 2.7 0.5 Polyoxyethylene (7EO) cetyl ether-0.5 Ethanol 26. 0 25.0 Organopolysiloxane * 1-1.0 Vinyl pyridine / vinyl acetate acetate (50/50) * 2-2.0 Purified water balance Balanced dimethyl ether / LPG mixed gas (5/5) 6.0 8.0 (Evaluation item) Propellant solubilized state stability ○ ○ Initial foam quality ○ ○ Foam stability ○ ○ 30% remaining foam quality ○ ○ Foam stability ○ ○ Feel (on hand) ○ ○ (on hair) ○ ◎ Set holding power △ ◎

[0055]

(Table 2) (% by weight) Comparative Example Ingredients 1 2 3 4 5 Myristic acid 10.0 10.0 1.0 10.0 1.0 2-Amino-2-methyl-1-propanol 4.0 4.0 1.0 4.0 1.0 Dipropylene glycol 10.0 10.0 1.0 10.0 1.0 Vinyl pyridine / Vinyl acetate polymer (50/50) * 2 − − − − 5.0 5.0 Purified water balance Balance balance Balance balance Fluorochlorochloromethane / LPG mixed gas (6/4) 10.0 − 10.0 10.0 10.0 Dimethyl ether / LPG mixed gas (5/5) − 6.0 − − − (Evaluation item) Propellant solubilized state stability × × × × × Initial foam quality × × × × × Foam stability × × × × × 30% Remaining foam quality × × × × × Foam stability Properties × × × × × Feel (on hand) × Δ × × × (on hair) × Δ × × × Set holding power × × × × ×

From Table 1, it can be seen that the aerosol compositions of Examples 1 and 2 stably form a uniform transparent liquid phase. Moreover, it can be seen that good foam quality and foam stability can be maintained from the initial stage of injection until the remaining amount reaches 30%. It is also seen that a very favorable feel is obtained.

Further, from the evaluation results of the aerosol composition of Example 2, even if the content of the surfactant was reduced by adding the organopolysiloxane to that of Example 1, a uniform transparent liquid phase was stabilized. It can be seen that a favorable foam quality and foam stability can be maintained from the initial stage of injection until the remaining amount reaches 30%, and a very favorable feel can be obtained.

On the other hand, Comparative Examples 1 to 5 in Table 2 relate to conventional aerosol compositions having a uniform liquid phase type formulation, but it can be seen that favorable results were not obtained for any of the evaluation items.

Example 3 Each component of the formulation shown in Table 3 was placed in a pressure-resistant transparent glass container for spraying an aerosol, and shaken sufficiently until the liquid phase became a transparent uniform phase to produce an aerosol composition for hair. did. The aerosol composition of this example uniformly solubilizes the propellant and does not change the foam quality until the end of use,
There was not much sliminess or stickiness, and it had an excellent feel.

[0060]

[Table 3] Ingredients (%) Myristyl alcohol 0.6 Polyoxyethylene (12EO) stearyl ether 2.7 Vinyl pyridine / vinyl acetate vinyl acetate (50/50) * 2 1.5 Ethyl alcohol 26.0 Purified water 63. 2 Dimethyl ether / LPG mixed gas (5/5) 6.0

Example 4 Each component of the formulation shown in Table 4 was placed in a pressure-resistant transparent glass container for aerosol injection, and shaken sufficiently until the liquid phase became a transparent uniform phase to produce an aerosol composition for hair. did. The aerosol composition of this example uniformly solubilizes the propellant and does not change the foam quality until the end of use,
The foam quality at low temperature was also very good. Moreover, it was excellent in setting performance and feel as a hair styling agent.

[0062]

[Table 4] Components Weight (%) Myristyl alcohol 0.1 Cetyl alcohol 0.1 Polyoxyethylene (12EO) stearyl ether 0.5 Polyoxyethylene (7EO) cetyl ether 0.5 Organopolysiloxane * 1 2.0 Vinyl Pololidene / vinyl acetate copolymer (50/50) * 2 1.5 Ethyl alcohol 23.0 Fragrance 0.2 Purified water 62.1 Dimethyl ether / LPG mixed gas (5/5) 10.0

[0063]

The aerosol composition of the present invention has a liquid phase in which the stock solution and the propellant composed of liquefied petroleum gas are uniformly and stably constituted by a relatively small amount of the surfactant. Therefore, it is possible to stably and uniformly discharge the foam without performing the shaking operation.

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

Claims (13)

(57) [Claims] 1. An aerosol composition containing a propellant and a stock solution, wherein the propellant and the stock solution form a uniform liquid phase, which comprises the following components: (A) myristyl alcohol 0.1-1. Wt%; (B) surfactant 0.5 to 5 wt%; (C) ethanol 20 to 30 wt%; and (D) water 50 to 90 wt%, and (E) liquefied petroleum gas Do Ri, injection from the injection agent
50 wt% or more LPG der Ru aerosol composition Ysaye. 2. The aerosol composition according to claim 1, wherein the surfactant as the component (B) is a nonionic surfactant. 3. The nonionic surfactant has 8 to 2 carbon atoms.
The aerosol composition according to claim 2, which is a polyoxyethylene alkyl ether having two linear alkyl chains. To 4. A stock solution 80 to 98 parts by weight, the aerosol composition according to any one of claims 1 to 3 containing 該噴 Ysaÿe 20-2 parts by weight. 5. (F) An organopolysiloxane represented by the following formula (1) which has an alkylene group containing a hetero atom in at least one of the silicon atoms at the terminals or side chains of the organopolysiloxane segment: 1] (In the formula, R ¹ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, a cycloalkyl group, an aralkyl group or an aryl group, and n represents a number of 2 or 3.).
An aerosol composition according to any one of claims 1 to 4, which contains an organopolysiloxane having an (acylalkyleneimine) segment bonded thereto. 6. The aerosol composition according to claim 1, which further comprises (G) a film-forming polymer. 7. The aerosol composition according to claim 1, which further comprises (H) an oil agent. 8. An aerosol composition containing a propellant and a stock solution, wherein the propellant and the stock solution form a uniform liquid phase, comprising the following components: (A) higher alcohol; (B) interface. Activator; (C) Ethanol; (F) An organopolysiloxane having the following formula (1) via an alkylene group containing a hetero atom in at least one of the silicon atoms at the terminals or side chains of the organopolysiloxane segment. ) [Chemical 2] (In the formula, R ¹ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, a cycloalkyl group, an aralkyl group or an aryl group, and n represents a number of 2 or 3.).
An acylpolyalkyleneimine) -bonded organopolysiloxane; and (D) an undiluted solution of water, and (E) a propellant containing liquefied petroleum gas. 9. The higher alcohol as the component (A) has 8 carbon atoms.
The aerosol composition according to claim 8, which is a linear alcohol of about 22. 10. The aerosol composition according to claim 8, wherein the surfactant as the component (B) is a nonionic surfactant. 11. The nonionic surfactant has 8 to 8 carbon atoms.
The aerosol composition according to claim 10, which is a polyoxyethylene alkyl ether having 22 linear alkyl chains. 12. to stock 80 to 98 parts by weight, the aerosol composition according to any one of claims 8-11 containing 該噴 Ysaÿe 20-2 parts by weight. 13. The aerosol composition according to claim 8, which contains (G) a film-forming polymer.