WO2016104661A1 - スクリーンフォーマー用の外用組成物 - Google Patents
スクリーンフォーマー用の外用組成物 Download PDFInfo
- Publication number
- WO2016104661A1 WO2016104661A1 PCT/JP2015/086147 JP2015086147W WO2016104661A1 WO 2016104661 A1 WO2016104661 A1 WO 2016104661A1 JP 2015086147 W JP2015086147 W JP 2015086147W WO 2016104661 A1 WO2016104661 A1 WO 2016104661A1
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- WIPO (PCT)
- Prior art keywords
- composition
- polyoxyethylene
- mass
- foam
- external use
- Prior art date
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Definitions
- the present invention relates to an external composition for a screen former suitable for a skin external preparation and a skin external preparation obtained by filling a screen former container with the composition.
- Foaming external compositions are less likely to be loaded on the skin during application, and can be applied uniformly over a wide range, so many applications have been made in cosmetics and pharmaceuticals (for example, Patent Document 1, (See Patent Document 2).
- Patent Document 1 See Patent Document 2.
- the use of liquefied gases such as LPG and fluoroalkane which has been the mainstream of foaming external compositions, is limited by problems such as ozone holes, and is also a problem of irritation of gas dissolved in foam. Now it is becoming difficult to put it into practical use. At the same time, it is being replaced by a non-gas type preparation using a pump former (see, for example, Patent Documents 3 and 4).
- Nonionic surfactants for example, refer to Patent Document 5
- anionic surfactants such as fatty acid soaps having a high surfactant activity and amphoteric surfactants are blended
- irritation to mucous membranes and skin is a problem.
- a nonionic surfactant with low skin irritation is used, sufficient foaming, foam retention and foam quality cannot be obtained due to low foaming properties (see, for example, Patent Document 6).
- compositions for pump formers that are used for cosmetics, medical use, etc.
- a foaming means with less irritation has been sought in an external composition for a screen former.
- a composition for external use for a screen former having a low-irritant nonionic surfactant as a foaming component has not been known so far, and the low foaming property of the nonionic surfactant as described above. Such formulation itself has not been attempted.
- the present invention has been made under such circumstances, and it is an object of the present invention to provide a composition for external use for a screen former that can be used safely even when used in a mode in which it is not removed after coating. And Moreover, this invention makes it a subject to provide the technique which preferably forms a favorable foam in such an external composition.
- the present invention also provides an external composition for a screen former that preferably reduces skin irritation during application or spreading, and discharges good foam even when the alcohol content is high. .
- the present invention provides an external composition for a screen former that preferably solubilizes an active ingredient and can be stably blended, increases the amount of the active ingredient, and has excellent formulation stability after coating. Is an issue.
- this invention makes it a subject to provide the composition for external use for screen formers suitable for treatment of skin diseases, such as atopic dermatitis, preferably.
- the present inventors have conducted intensive research to find a composition for external use for a screen former that can be used safely, and it is preferable that a nonionic surfactant be used as a foaming component. It has been found that an external composition for a screen former having such an effect can be obtained by preparing a composition in a solution state, and the present invention has been completed. That is, the present invention is as follows.
- composition for external use for a screen former which contains a nonionic surfactant as a foaming component and is in a solubilized state.
- composition for external use according to ⁇ 1> which is in a solubilized state.
- ⁇ 3> The composition for external use according to ⁇ 1> or ⁇ 2>, wherein the total content of the ionic surfactant is 1% by mass or less.
- ⁇ 4> The composition for external use according to any one of ⁇ 1> to ⁇ 3>, wherein the composition is for use in a form that is not removed after coating.
- ⁇ 5> The composition for external use according to any one of ⁇ 1> to ⁇ 4>, which is aqueous.
- composition for external use according to any one of ⁇ 1> to ⁇ 5>, wherein the nonionic surfactant has an HLB value of 9 or more.
- nonionic surfactant is one or more surfactants selected from the following group A: Composition.
- Group A Polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene hydrogenated castor oil, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid glyceryl, polyoxypropylene polyoxyethylene alkyl ether and polyoxypropylene Polyoxyethylene alkenyl ether ⁇ 8>
- the proportion of the nonionic surfactant selected from Group A is 80% by mass or more based on the total amount of the nonionic surfactant contained in the composition for external use.
- the external composition as described in ⁇ 7> characterized by these.
- composition for external use according to ⁇ 7> or ⁇ 8> wherein the carbon chain constituting the hydrophobic group of the nonionic surfactant of Group A has 8 or more carbon atoms.
- composition for external use according to any one of ⁇ 1> to ⁇ 9> wherein the total amount of alcohol is 10% by mass or more.
- composition for external use according to any one of ⁇ 1> to ⁇ 10> which contains a phospholipid.
- composition for external use according to any one of ⁇ 1> to ⁇ 11> comprising 1 to 40% by mass of one or more selected from the group of solvents shown below.
- a composition for external use comprising a solubilized state.
- a design method comprising: selecting a surfactant in a total amount in a range of 1 to 15% by mass, and selecting a content of an alcohol selected from Group B in a total amount in a range of 5 to 55% by mass.
- Group A Polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene hydrogenated castor oil, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid glyceryl, polyoxypropylene polyoxyethylene alkyl ether and polyoxypropylene
- Polyoxyethylene alkenyl ether Group B) Ethanol, isopropyl alcohol, propylene glycol, dipropylene glycol, glycerin, diglycerin, 1,3-butylene glycol, 1,2-pentanediol, 1,2-hexanediol, polyethylene glycol and polypropylene glycol
- the composition for external use for screen formers which can be used safely is provided.
- the external composition for screen formers which forms a favorable foam is provided.
- such a composition can solubilize an active ingredient and can be stably blended, has a high retention amount of the active ingredient, and is excellent in formulation stability after coating.
- sufficient foaming after discharge, good fineness and uniformity of foam, softness and elasticity, defoaming in an appropriate time after application, no foam remaining, and drying It is easy to apply, and it is excellent in application uniformity of active ingredients and ease of spreading during application.
- a composition for a screen former suitable for the treatment of skin diseases such as atopic dermatitis is provided.
- Example 1 is a photograph showing the results of Example 3.
- Example 4 is a photograph showing the results of Example 5. It is a figure which shows the result of Example 5.
- 6 is a photograph showing the results of Example 6. It is a photograph which shows the result (after 3 weeks) of Example 6.
- 14 is a photograph showing the results of Example 13.
- 14 is a photograph showing the results of Example 14.
- 14 is a photograph showing the results of Example 15.
- 14 is a photograph showing the results of Example 16.
- Example 17. 2 is a photograph showing the results of Example 31.
- FIG. 14 is a photograph showing the results of Example 33.
- 14 is a photograph showing the results of Example 34.
- Nonionic surfactant which is an essential component of the composition of the present invention
- the composition of the present invention is characterized by containing a nonionic surfactant as a foaming component. This component is oriented to the gas-liquid interface of the foam, lowers the surface tension of the gas-liquid interface, and improves the foaming property of the foam, the stability of the formed foam, uniformity during coating, and ease of spreading.
- the nonionic surfactant in the composition of the present invention can be applied without particular limitation as long as it is a nonionic surfactant that can be blended in a skin external preparation.
- the HLB value of the nonionic surfactant is preferably 9 or more, more preferably 10 or more, still more preferably 11 or more, and particularly preferably 13 or more.
- the HLB value of the nonionic surfactant is, for example, 10 to 19.
- nonionic surfactant one or more selected from the following group A is preferably used.
- group A Polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene hydrogenated castor oil, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid glyceryl, polyoxypropylene polyoxyethylene alkyl ether and polyoxypropylene Polyoxyethylene alkenyl ether
- polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether as a nonionic surfactant is preferable.
- a nonionic surfactant in addition to polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether, polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether are added.
- a form in which one or two or more selected from polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester and polyoxyethylene hydrogenated castor oil are combined can be preferably exemplified.
- polyoxyethylene fatty acid ester and / or polyoxyethylene hydrogenated castor oil are preferable, and combining both of these is also preferable.
- the form which uses only polyoxyethylene sorbitan fatty acid ester as a nonionic surfactant can also be illustrated preferably.
- the nonionic surfactant is preferably blended in an amount that makes the composition solubilized.
- the nonionic surfactant is preferably contained in an amount of 1 to 15% by mass based on the total amount of the composition.
- the nonionic surfactant is preferably 2 to 12% by mass, more preferably 2 to 10% by mass, more preferably 2.5 to 10% by mass, and particularly preferably 2.5 to 10% by mass based on the total amount of the composition. Contains 7% by mass.
- the proportion of the nonionic surfactant having the predetermined HLB value is preferably 80% by mass or more, more preferably 90% by mass or more, and particularly preferably 95% by mass with respect to the total amount of the nonionic surfactant. % Or more.
- the total amount of the nonionic surfactant is composed of a nonionic surfactant having an HLB value of 9 or more, preferably 10 or more, more preferably 11 or more, and particularly preferably 13 or more.
- the proportion of the nonionic surfactant selected from Group A is preferably 80% by mass or more, more preferably 90% by mass or more, and particularly preferably 95% by mass with respect to the total amount of the nonionic surfactant. That's it.
- the total amount of the nonionic surfactant is composed of a nonionic surfactant selected from Group A.
- the proportion of polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether is preferably 25% by mass or more, more preferably 40% by mass or more, and still more preferably, based on the total amount of nonionic surfactant. It is 50 mass% or more. Although the upper limit of these ratios is not particularly limited, for example, it is 90% by mass or less, preferably 80% by mass or less.
- polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether as the nonionic surfactant, polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl
- the total ether content is 1: 5 to 5: 1 by mass ratio with respect to the total content of nonionic surfactants other than polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether, more preferably 1: 4 to 4: 1, more preferably 1: 3 to 3: 1.
- the carbon number of the carbon chain constituting the hydrophobic group of the nonionic surfactant is preferably 8 or more, more preferably 10 or more, and particularly preferably 12 or more. Moreover, as an upper limit of carbon number, Preferably it is 24, More preferably, it is 22.
- the number of carbon atoms of the alkyl or alkenyl constituting the polyoxyethylene alkyl ether or polyoxyethylene alkenyl ether is preferably 10 to 24, more preferably 12 to 22.
- Preferred examples of polyoxyethylene alkyl ether or polyoxyethylene alkenyl ether include polyoxyethylene oleyl ether, polyoxyethylene stearyl ether, polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, and polyoxyethylene behenyl ether.
- the average number of added moles of polyoxyethylene is preferably 2 to 50, more preferably 4 to 45, still more preferably 4 to 40, and particularly preferably 6 to 30.
- the number of carbon atoms of the fatty acid constituting the polyoxyethylene fatty acid ester is preferably 8 to 24, more preferably 12 to 18.
- polyoxyethylene fatty acid esters polyoxyethylene oleate (polyethylene glycol oleate), polyoxyethylene stearate (polyethylene glycol stearate), polyoxyethylene laurate (polyethylene glycol laurate), etc.
- a fatty acid and unsaturated fatty acid ester can be illustrated preferably.
- polyoxyethylene monooleate (polyethylene glycol monooleate), polyoxyethylene monostearate (polyethylene glycol monostearate), and polyoxyethylene monolaurate (polyethylene glycol monolaurate) can be preferably exemplified.
- the average number of moles of polyoxyethylene added is preferably 5 to 70, more preferably 5 to 65, and still more preferably 5 to 55.
- the number of carbon atoms of the fatty acid constituting the polyoxyethylene sorbitan fatty acid ester is preferably 12-18.
- polyoxyethylene sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan trioleate, tetraolein
- a suitable example is acid polyoxyethylene sorbitan.
- the average number of added moles of polyoxyethylene is preferably 5 to 50, more preferably 10 to 25.
- a preferable example of polyoxyethylene hydrogenated castor oil is one having an average added mole number of polyoxyethylene of 20 to 100.
- the number of carbon atoms of the fatty acid constituting the polyoxyethylene fatty acid glyceryl is preferably 8 to 24, more preferably 12 to 18.
- Preferable examples of the polyoxyethylene fatty acid glyceryl include polyethylene glycol monostearate and polyethylene glycol monooleate.
- the average number of added moles of polyoxyethylene is preferably 10 to 55, more preferably 10 to 45.
- the alkyl or alkenyl constituting the polyoxypropylene polyoxyethylene alkyl ether or the polyoxypropylene polyoxyethylene alkenyl ether preferably has 16 to 24 carbon atoms.
- Preferred examples of polyoxypropylene polyoxyethylene alkyl ether or polyoxypropylene polyoxyethylene alkenyl ether include polyoxypropylene polyoxyethylene cetyl ether.
- the average number of added moles of polyoxyethylene is preferably 1 to 30, and more preferably 10 to 20.
- the average added mole number of polyoxypropylene is preferably 4-8.
- composition of the present invention may further contain a nonionic surfactant having an HLB value of 5 or less, in addition to a nonionic surfactant having an HLB value of 9 or more.
- the nonionic surfactant having an HLB value of 5 or less according to the present invention can be applied without particular limitation as long as it can be blended in a skin external preparation or the like.
- the nonionic surfactant include glycerin fatty acid esters.
- sorbitan fatty acid ester can be suitably exemplified.
- Examples of the glycerin fatty acid ester include glyceryl monostearate and glyceryl monomyristate, and examples of the sorbitan fatty acid ester include sorbitan monostearate (HLB4.7), sorbitan monooleate (HLB4.3), and sorbitan tristearate. (HLB2.1), sorbitan trioleate (HLB1.7), sorbitan sesquistearate (HLB4.2), sorbitan sesquioleate (HLB3.7) and the like can be suitably exemplified, glyceryl monostearate, monostearic acid Sorbitan can be preferably exemplified.
- the nonionic surfactant having an HLB value of 5 or less of the present invention can be contained in an amount of 0.1 to 10% by mass, more preferably 1 to 5% by mass, based on the total amount of the composition.
- the HLB value is 9 or more, preferably 10 or more, more preferably 11 or more, particularly preferably 13 or more, for example, 10 to 19, and the total content of nonionic surfactants is 1: 3 to 3: 1. More preferably, the ratio is 1: 2 to 2: 1.
- nonionic surfactant having an HLB value of 9 or more As an example of a combination of the nonionic surfactant having an HLB value of 9 or more and a nonionic surfactant having an HLB value of 5 or less, as a nonionic surfactant, a polysiloxane having an HLB value of 9 or more is used.
- ethylene alkenyl ether one or two or more selected from polyoxyethylene fatty acid esters having an HLB value of 9 or more, polyoxytyrenated sorbitan fatty acid esters and polyoxytyrenated castor oil Glyceryl monostearate having an HLB value of 5 or less
- the weighted average is preferably 9 to 16.
- An aliphatic alkanolamide type surfactant can also be used as the nonionic surfactant.
- the aliphatic alkanolamide-type surfactant can be applied without particular limitation as long as it is used in normal skin external preparations such as external medicines and cosmetics.
- coconut oil fatty acid monoethanolamide ( Cocamide MEA), coconut oil fatty acid diethanolamide (cocamide DEA), lauric acid monoethanolamide (lauramide MEA), lauric acid diethanolamide (lauramide DEA), lauric acid monoisopropanolamide (lauramide MIPA), palmitic acid monoethanolamide (partamide) MEA), palmitic acid diethanolamide (partamide DEA), coconut oil fatty acid methylethanolamide (cocamidomethyl MEA) and the like can be preferably exemplified, and coconut oil fatty acid diethanolamide, lauric acid diethanolamide, pal Chin acid diethanolamide can be preferably exemplified, and select one or more than such components, it can be included in the composition.
- the content of the aliphatic alkanolamide type surfactant is, for example, 0.5 to 10% by mass, for example 1 to 5% by mass.
- composition of the present invention is a composition for a screen former.
- the screen former means a mechanism in which liquid is pressurized and passed through a net-like screen to be mixed with air and foamed.
- Pump formers and tube formers are known.
- a pump former can be preferably exemplified.
- a pump former is a mechanism that discharges the contents pumped up in a pump form.
- the composition of the present invention contains the essential component as a foaming component. That is, in the composition of the present invention, the nonionic surfactant functions as a foaming component when foamed by a screen former such as a pump former.
- the composition of the present invention is preferably in a solubilized state.
- the solubilized state refers to a state in which a surfactant forms micelles, and a substance that does not dissolve in a solvent is transparently and uniformly dissolved to form a one-phase solution.
- the solubilized state includes a state of a microemulsion.
- a microemulsion is a micelle solution that is composed of emulsified particles having a fine particle diameter of 100 nm or less and is thermodynamically stable.
- the solubilized state can be confirmed by the appearance being transparent. Further, the solubilized state can be confirmed by measuring the particle size by a conventional method. By setting the solubilized state, good foamability can be obtained. Moreover, the intensity
- composition of the present invention is preferably in the form of an external composition for skin, such as a skin external medicine or cosmetic.
- the composition of the present invention is for use in an embodiment that is not removed after coating.
- the composition of the present invention is preferably aqueous.
- the aqueous system means that water is contained to such an extent that it functions as a base.
- the content is 15% by mass or more, preferably 20% by mass or more, and more preferably 30% by mass or more. is there.
- the composition of the present invention is characterized by containing 40 to 85% by mass of water, more preferably 50 to 80% by mass, and still more preferably 55 to 75% by mass.
- water is an important component of the foam interface for forming foam when discharged by a pump former, and in the above range, excellent foamability and foam persistence are excellent. When using for external use, it is effective to set the amount of water in the above range in order to stably maintain the foam during application.
- the arbitrary component used with external compositions can be contained besides the said essential component.
- optional components include hydrocarbons such as liquid paraffin and squalane, jojoba oil, esters such as oleyl ester of dodecanoic acid, cetyl isooctanoate, N-methyl-2-pyrrolidone, N-ethyl- N-alkylpyrrolidones such as 2-pyrrolidone, alkylene carbonates having 2 to 4 carbon atoms such as ethylene carbonate and propylene carbonate, crotamiton, triethyl citrate, ethyl ether of diethylene glycol, triacetin, diisopropyl adipate, diethyl adipate, diisopropyl sebacate Diesters of dibasic acids having 5 to 12 carbon atoms such as benzyl alcohol, acetone,
- the composition of the present invention preferably contains a solvent selected from the following.
- (Solvent) N-alkylpyrrolidone, alkylene carbonate, benzyl alcohol, adipic acid diester, sebacic acid diester These solvents are excellent in solubility of poorly soluble drugs, solubilize poorly soluble drugs and are stable in the composition. Can be contained.
- N-alkylpyrrolidone include N-alkyl-2-pyrrolidone having an alkyl chain having 1 to 4 carbon atoms, and N-methyl-2-pyrrolidone and N-ethyl-2-pyrrolidone are particularly preferred.
- As the alkylene carbonate propylene carbonate is preferable.
- adipic acid diester examples include diethyl adipate and diisopropyl adipate.
- sebacic acid diester examples include diethyl sebacate and diisopropyl sebacate.
- Acetone, methyl ethyl ketone, and ethylene glycol alkyl ether can also be used as the solvent.
- Such components can be contained alone in the composition, or one or more can be selected and contained in the composition.
- the preferable content of the solvent in the composition of the present invention is preferably 1 to 40% by mass, more preferably 1 to 30% by mass, still more preferably 1 to 15% by mass, and particularly preferably 1%, based on the total amount of the composition. It is ⁇ 10% by mass, more preferably 3 to 8% by mass.
- the solvent is preferably contained in an amount 20 to 5000 times, more preferably 30 to 2500 times, and still more preferably 40 to 1000 times the amount of the hardly soluble drug (active ingredient).
- the content is 20 to 250 times by mass, more preferably 30 to 200 times by mass.
- Such components can increase the strength of the discharged foam.
- a poorly soluble medicine (active ingredient) when contained, it can be stably blended.
- such components can reduce irritation during application and spreading. In order to achieve such an effect, the content is preferable.
- the composition of the present invention preferably contains an alcohol.
- the alcohol in the present invention is a general term for monohydric alcohols and polyhydric alcohols. Such alcohols are preferably mixed with water at an arbitrary ratio.
- Examples of monohydric alcohols include ethanol and isopropyl alcohol.
- Preferred examples of the polyhydric alcohol include propylene glycol, dipropylene glycol, glycerin, diglycerin, 1,3-butylene glycol, 1,2-pentanediol, 1,2-hexanediol, polyethylene glycol, and polypropylene glycol. It can be illustrated.
- these polyhydric alcohols one or more selected from 1,3-butylene glycol, polyethylene glycol, glycerin and propylene glycol are preferable, and in particular, polyethylene glycol, 1,3-butyl alcohol, Butylene glycol is a preferred example.
- the molecular weight of the polyhydric alcohol of the present invention is preferably 3500, more preferably 2000 or less.
- the lower limit is preferably 10% by mass, more preferably 12% by mass, particularly preferably 15% by mass, and the upper limit is preferably 55% by mass, more preferably 45% by mass, Especially preferably, it is 40 mass%, for example, 30 mass%.
- the content of monohydric alcohol is preferably 5 to 25% by mass, more preferably 5 to 20% by mass, and particularly preferably 5 to 15% by mass.
- the content of the polyhydric alcohol is preferably 10 to 55% by mass, more preferably 12 to 45% by mass, particularly preferably 15 to 40% by mass, for example 15 to 30% by mass.
- the preferred content of the monohydric alcohol and the alcohol containing the polyhydric alcohol is preferably 5 to 55% by mass, more preferably 10 to 55% by mass, more preferably 12 to 45% by mass, based on the total amount of the composition. More preferably, it is 15 to 30% by mass.
- polyhydric alcohol is contained in an amount of 10% by mass or more, preferably 10 to 55% by mass, more preferably 12 to 45% by mass, and particularly preferably 15 to 30% by mass with respect to the total amount of the composition. preferable.
- Preferred forms in the composition of the present invention include the following.
- a form containing 5% by mass and also containing other polyhydric alcohols a form containing 1,3-butylene glycol in an amount of 5 to 40% by mass, more preferably 5 to 30% by mass, and even more preferably 10 to 25% by mass,
- a form containing other polyhydric alcohol in addition to the 1,3-butylene glycol is preferred.
- a polyhydric alcohol By containing the above-mentioned alcohol, especially, a polyhydric alcohol at a high concentration, it is possible to form a foam whose interface is reinforced by interaction with a nonionic surfactant described later. Moreover, it becomes a composition which can realize a moisturizing feeling by containing alcohol in high concentration.
- the composition of the present invention preferably contains a phospholipid.
- the phospholipid can be applied without particular limitation as long as it is used in normal skin external preparations such as external medicines and cosmetics. Specific examples include lecithin purified from soybeans and egg yolk, and the main component of lecithin. Phosphatidylcholine, phosphatidylcholine, phosphatidylcholine, hydrogenated lecithin, phosphatidylserine, phosphatidylinositol, phosphatidylethanolamine, phosphatidylglycerol, Sphingomyelin, cereproside and the like can be suitably exemplified. These lyso forms can also be contained in the same manner.
- lecithin and hydrogenated lecithin are preferable.
- Such components have the effect of improving the foam quality of the composition.
- such components are defoamed in an appropriate time after application without deteriorating foaming properties. Therefore, they have low irritation during application and spreading, are easy to stretch, and do not leave bubbles. Therefore, it is suitable for application to the skin having a reduced skin barrier function such as atopic dermatitis.
- Such a component can contain only 1 type, and can also contain 2 or more types in combination.
- the phospholipid is preferably contained in an amount of 0.001 to 10% by mass, more preferably 0.01 to 5% by mass, particularly preferably 0.01 to 1% by mass, based on the total amount of the composition.
- Such components have the effect of increasing the strength of the discharged foam and preventing the foam from being affected by pH and changing its properties. Moreover, such a component can improve the feeling of use at the time of spreading the coating, and can avoid irritation of the skin. In order to achieve such an effect, the content is preferable.
- sebum components such as squalene, cholesterol, cholesterol esters, wax esters, triglycerides, diglycerides, monoglycerides, ceramides, free fatty acids, amino acids such as serine and glycine, pyrrolidone carboxylic acids and salts thereof, urea, lactic acid
- Natural moisturizing factors such as acid mucopolysaccharides such as hyaluronic acid can also be included.
- composition of the present invention may contain an organic salt and / or an inorganic salt.
- the composition of the present invention has liquidity adjusted with an organic salt and / or inorganic salt, and has excellent foaming properties and foam retention without being affected by liquidity in the range of strong acidity to strong alkalinity (pH 2 to 12). Can form foam.
- organic salt and / or inorganic salt examples include hydrochloric acid, citric acid, gluconic acid, succinic acid, acetic acid, tartaric acid, sorbic acid, lactic acid, maleic acid, sulfuric acid, phosphoric acid, malic acid, arginine, aqueous ammonia, Examples include, but are not limited to, isopropanolamine, diethanolamine, triisopropanolamine, triethanolamine, monoethanolamine, potassium hydroxide, calcium hydroxide and sodium hydroxide, or salts thereof.
- the specific amount of the organic salt and / or inorganic salt used in the present invention varies depending on the organic salt and / or inorganic salt used, but is an amount that adjusts the liquidity of the composition to the above pH range.
- the content is 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, based on the total amount of the composition.
- the composition of the present invention can be applied as a cleaning agent or the like in alkaline, and to a pharmaceutical or cosmetic with reduced skin irritation in weak acidity.
- the weak acidity is suitable for pharmaceuticals and cosmetics used in a form that is not removed after application.
- composition of the present invention contains a component selected from aminocarboxylic acid derivatives and salts thereof, phosphonic acid derivatives and salts thereof, phenanthroline derivatives and salts thereof, fetinic acid derivatives and salts thereof, gluconic acid derivatives and salts thereof. May be.
- amino acid carboxylic acid derivative and its salt examples include ethylenediaminetetraacetic acid and its salt, nitrilotriacetic acid and its salt, diethylenetriaminepentaacetic acid and its salt, hydroxyethylethylenediaminetriacetic acid and its salt, triethylenetetraminehexaacetic acid and its salt, 1,3-propanediaminetetraacetic acid and its salt, 1,3-diamino-2-hydroxypropanetetraacetic acid and its salt, hydroxyethyliminodiacetic acid and its salt, dihydroxyethylglycine and its salt, glycol etherdiaminetetraacetic acid and Preferred examples thereof include dicarboxymethylglutamic acid and its salt, (S, S) -ethylenediaminesuccinic acid and its salt, and ethylenediaminetetraacetate is preferred.
- Examples of the phosphonic acid derivatives and salts thereof include hydroxyethylidene diphosphonic acid and salts thereof, human lilotris (methylenephosphonic acid) and salts thereof, phosphonobutanetricarboxyxyl acid and salts thereof, ethylenediaminetetra (methylenephosphonic acid) and salts thereof And the like, and hydroxyethylidene diphosphonic acid and salts thereof are preferable.
- Preferable examples of the fetic acid derivative and its salt include fetic acid and its salt.
- a gluconic acid derivative and a salt thereof a gluconic acid derivative can be preferably exemplified.
- Such components are preferably contained in an amount of 0.0001 to 10% by weight, more preferably 0.001 to 5% by weight, based on the total amount of the composition. Moreover, decomposition
- composition of the present invention does not contain a component that exhibits safety, i.e., irritation or irritation to humans with sensitive skin, the use of the following components is preferably limited.
- the total content of ionic surfactants excluding phospholipids is preferably 1% by mass or less, and preferably not substantially contained.
- nonionic surfactants the use of alkanolamide type surfactants is also preferably limited, and is not substantially contained in a particularly preferred form.
- nonionic surfactants polyoxyethylene polyoxypropylene glycol induces anaphylaxis in the mucous membrane, so that its use is preferably limited.
- the amount of these nonionic surfactants used is preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 5% by mass or less, and particularly preferably as a proportion of the nonionic surfactant. Does not contain.
- the composition of the present invention is preferably a composition in a solubilized state, and forms bubbles with a nonionic surfactant. Further, in a preferred form of the present invention, foaming, foam holding, fineness of foam, foam quality such as softness and elasticity, feeling of use such as moisturizing feeling, uniformity at the time of application, ease of spreading, etc. Excellent in at least one of the feelings of use.
- an active ingredient is contained.
- active ingredients include, for example, steroids such as hydrocortisone, clobetasone, dexamethasone and betamezone, and derivatives thereof, non-steroidal anti-inflammatory agents such as indomethacin and suprofen, bactericides such as chlorhexidine gluconate and benzalkonium chloride, terbinafine Antifungal agents such as butenafine, bifonazole and ketoconazole, antibiotics such as penicillin, methicillin, tetracycline, colistin methanesulfonic acid, fosfomycin, anti-pruritic agents such as nalfrafin, vitamin A, vitamin B, vitamin C, Preferred examples include immunosuppressive agents such as vitamin Ds, vitamin Es, tacrolimus, mucopolysaccharides such as hyaluronic acid and heparin-like substances. These contents are preferably about 0.00
- the active ingredient may contain a compound selected from betamazone and its derivatives.
- Betamazone is an IUPAC name: (8S, 9R, 10S, 11S, 13S, 14S, 16S, 17R) -9-fluoro-11,17-dihydroxy-17- (2-hydroxyacetyl) -10,13,16-trimethyl -6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17-dodecahydro-3H-cyclopenta [a] phenanthren-3-one (CAS No 378-44-9) A compound.
- ester derivatives such as phosphoric acid ester, valeric acid ester, butyric acid ester, and propionic acid ester can be suitably exemplified.
- the ester may be an ester of one kind of acid or an ester of mixed acid.
- Examples of the composition of the present invention include a form containing betamethasone butyrate propionate as an active ingredient.
- the content of the active ingredient selected from the betamazone and derivatives thereof is preferably 0.001 to 1% by mass, more preferably 0.005 to 0.5% by mass. If it is the range of the said content, the compound chosen from betamazone and its derivative (s) can be solubilized and formulated in the skin external preparation of this invention.
- treatment within the above content range can be expected from treatments such as an anti-inflammatory therapeutic effect, an atopic skin therapeutic effect, and an immunosuppressive effect by a compound selected from betamazone and its derivatives.
- the composition of the present invention can obtain foams with a wide range of characteristics by changing the content of the formulation components.
- a pump former composition with foam characteristics suitable for each disease symptom is selected. And can be applied.
- the bubble characteristic can be determined by visual observation or can be determined as a physically measurable value. Such physical measurement values can be evaluated by, for example, the bubble size based on the bubble volume, the moving speed of the bubbles applied on the inclined glass, and the like.
- composition for external use dissolves the active ingredient uniformly and can be used in the form of foam during use, so it can be spread smoothly over the affected area without causing irritation, and the active ingredient should be uniformly applied to the affected area. Can do.
- preparations are useful for the treatment of skin diseases such as skin inflammation, eczema, atopic dermatitis, psoriasis, acne, scar, acne, etc. It is preferably applied to treatment and prevention to prevent onset.
- composition of the present invention can be prepared by treating such essential components and optional components according to a conventional method, preferably in a solubilized state.
- the composition of the present invention is preferably in a solubilized state, whereby the strength of foam after foaming, that is, foamability is improved. Furthermore, the composition of the present invention is excellent in stability during long-term storage without precipitating crystals.
- the composition of the present invention can be applied to a wide range of pH formulations.
- External preparation for skin of the present invention is characterized by being filled in a screen former container.
- the screen former means a mechanism in which liquid is pressurized and passed through a net-like screen to be mixed with air and foamed.
- Pump formers and tube formers are known.
- a pump former can be preferably exemplified.
- a pump former is a mechanism that discharges the contents pumped up in a pump form.
- a screen former container means a container having the mechanism.
- the external preparation for skin of the present invention is formed by filling the composition of the present invention in a pump former container.
- a pump former container means the container which combined the content storage container which should be pumped up in this pump former.
- Such containers are already known (see, for example, JP 2012-45525 A and JP 2008-307478 A), and some are already commercially available.
- the composition for external use of the present invention can be used as a stiff foam, and this makes it possible to uniformly spread the affected area with an excellent spreadability and light spread without causing a burden on the affected area. Can be applied.
- the external preparation for skin of the present invention is particularly preferably a pharmaceutical product. In the case of pharmaceuticals, they are used without being removed after application.
- the pharmaceutical product of the present invention is excellent in safety and foamability.
- the present invention also provides 1 to 15% by mass of one or more nonionic surfactants selected from Group A, and steroids, nonsteroidal anti-inflammatory agents, bactericides, and antifungal agents as active ingredients. Characterized by containing 0.001 to 10% by mass of antibiotics, antipruritics, vitamins A, vitamins B, vitamins C, vitamins D, vitamins E and immunosuppressants in a solubilized state
- the present invention also relates to a composition for external use.
- the antifungal agent preferably includes a form containing a naphthylamine-based, benzylamine-based, azole-based or dithiolane-based antifungal agent.
- Such a composition for external use is suitable for containing an effective amount of an active ingredient. It is also suitable as a composition for a foam agent, particularly a screen former. Also in such a form, the description about the preferable component mentioned above is applied as it is.
- a nonionic surfactant selected from Group A is selected as an essential component in the range of 1 to 15% by mass.
- Group A Polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene hydrogenated castor oil, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid glyceryl, polyoxypropylene polyoxyethylene alkyl ether and polyoxypropylene Polyoxyethylene alkenyl ethers
- These nonionic surfactants are selected within the range of 1 to 15% by weight. Preferred embodiments and contents of the nonionic surfactant are as described above.
- an alcohol selected from Group B as an essential component is selected in the range of 5 to 55% by mass.
- Alcohol has a function of assisting foaming by the above-described nonionic surfactant.
- Group B Preferred modes and contents of ethanol, isopropyl alcohol, propylene glycol, dipropylene glycol, glycerin, diglycerin, 1,3-butylene glycol, 1,2-pentanediol, 1,2-hexanediol, polyethylene glycol, polypropylene glycol alcohol Is as described above.
- a nonionic surfactant selected from Group A is added within a range of 1 to 15% by mass so that a composition prepared by heating, stirring, and cooling constituent components is in a solubilized state.
- an alcohol selected from Group B is selected in the range of 5 to 55% by mass.
- the solubilized state refers to a state in which a surfactant forms micelles, and a substance that does not dissolve in a solvent is transparently and uniformly dissolved to form a one-phase solution.
- the solubilized state includes a state of a microemulsion.
- a microemulsion is a micelle solution that is composed of emulsified particles having a fine particle diameter of 100 nm or less and is thermodynamically stable.
- the solubilized state can be confirmed by the appearance being transparent. Further, the solubilized state can be confirmed by measuring the particle size by a conventional method. As shown in the Examples described later, it was found that good foamability can be obtained by making the solubilized state. Therefore, it is important to design the foam composition so that the formulation design is in a solubilized state.
- the composition is in a solubilized state immediately after the production of the composition and after 48 hours or more after the production (at room temperature).
- the solubilized state immediately after production is maintained even after the passage (at room temperature)
- the solubilized state immediately after manufacture is maintained after 72 hours or longer (at room temperature)
- the design method of the present invention is suitable for designing an external medicine used in a form that is not removed after application. That is, in such a medicine, from the viewpoint of safety, optional components other than the above-described constituent components and active ingredients of the base are limited. That is, the design method of the present invention is suitable as a design method for a composition in which the total content of the above-described nonionic surfactant, alcohol, water and solvent is 90% by mass or more, preferably 95% by mass or more. .
- the example of the design method of this invention is demonstrated taking an external medicine as an example.
- the active ingredient and its concentration are selected according to the treatment target.
- a nonionic surfactant, alcohol, and optionally a solvent if the active ingredient selected in (1) is sparingly soluble
- the remaining amount is water.
- At least one of the types and amounts of each component selected in (2) is changed, and a composition in which the remaining amount is adjusted with water is prepared.
- the state of solution immediately after the production of the obtained compositions and after 48 hours (preferably 72 hours) (at room temperature) is visually observed.
- a composition in which the solubilized state is maintained is selected as the foam composition.
- composition for a screen former having a formulation obtained by the design method of the present invention is a solubilized composition, and forms bubbles with a nonionic surfactant.
- the evaluation method of the present invention comprises 1 to 15% by mass of a nonionic surfactant selected from Group A as a foaming component and 5 to 55% by weight of alcohol selected from Group B. %,
- a foam-based evaluation method for an external composition for an aqueous screen former comprising evaluating the foamability of the composition using the solubilized state of the composition as an index. That is, for a composition constituted by selecting a specific nonionic surfactant and alcohol within the above range, the solubilized state is evaluated, and this is used as an index, so that The foamability can be evaluated.
- the evaluation is preferably performed multiple times immediately after the production of the composition and after 48 hours or more after the production (at room temperature), preferably after 72 hours or more (at room temperature), and the solubilized state is maintained. Therefore, it is preferable to evaluate that the foaming property is excellent.
- the description regarding the composition mentioned above applies to the various preferable aspects in the design method and evaluation method of the present invention.
- the surfactants (all manufactured by NIKKOL) and their HLB used in the following formulations are as follows. Polyoxyethylene (9) lauryl ether (BL-9EX) 14.5 Polyoxyethylene (10) oleyl ether (BO-10V) 14.5 Polyoxyethylene (20) oleyl ether (BO-20V) 17.0 Polyoxyethylene (10) cetyl ether (BC-10) 13.5 Polyoxyethylene (23) cetyl ether (BC-23) 18.0 Polyoxyethylene (20) stearyl ether (BS-20) 18.0 Polyoxyethylene (20) behenyl ether (BB-20) 16.5 Polyethylene glycol monostearate (10E.O.) (MYS-10V) 11.0 Polyethylene glycol monostearate (40E.O.) (MYS-40MV) 17.5 Polyethylene glycol monooleate (10E.O.) (MYO-10V) 11.0 Polyoxyethylene monostearate (20) sorbitan (TS-10MV) 14.9 Polyoxyethylene monooleate (20) sorbitan (TO-10MV
- a composition for a pump former of the present invention and a comparative example were prepared. That is, each prescription component was weighed, heated and dissolved at 80 ° C., solubilized with stirring, and stirred and cooled to room temperature to obtain each composition. Immediately after preparation, the state of these compositions (whether they were clouded or separated) was visually observed. Furthermore, these compositions are filled in a pump former container and discharged onto a slide glass, and the foaming property (foam amount) and foam quality (fineness of foam) and the persistence of foam (room temperature for 30 minutes) The state of the subsequent foam) and the foam quality (the fineness of the foam after standing at room temperature for 30 minutes) were observed.
- the prescription components in the table are indicated by mass% (the same applies to the following tables).
- compositions 1 to 3 were in a solubilized state and were found to be compositions for pump formers that are excellent in foaming properties, foam quality, and sustainability.
- the composition for the pump former of the present invention it was found that polyoxyethylene alkyl ether or polyoxyethylene alkenyl ether is excellent as a nonionic surfactant.
- Comparative Examples 1 to 3 were not in a solubilized state (white turbidity or separation was observed) and the foamability was not sufficient, so that they could not be used as a composition for a pump former. From this, it can be seen that foaming properties can be obtained by making it in a solubilized state and it can be used as a composition for a pump former.
- Example 2 In order to see the effect of alcohol and solvent, a comparative example of the following formulation was prepared according to the procedure of Example 1. The result was a cloudy liquid (not in a solubilized state), and foam formation was insufficient. From this, it was found that the property of the composition is preferably a transparent one-phase liquid, that is, a solubilized state. It was also found that alcohol and a solvent are preferably present for foam formation.
- Example 3 According to the following formulation, the composition of the present invention was prepared according to the procedure of Example 1. The state immediately after preparation of the composition was visually observed (no cloudiness: ⁇ , with cloudiness: x). 100 g of each composition was put into a beaker, stirred at 3000 rpm for 1 minute, and allowed to stand for 2 minutes. When the boundary between the foam and the solution became clear, the height (mm) of the foam produced was measured, and the foam quality ( After stirring, fine foam was obtained ( ⁇ ), coarse foam was obtained after stirring ( ⁇ ), and no foam was obtained after stirring ( ⁇ )). The results are shown in Table 3 and FIG. The composition for external use of the present invention showed excellent foam forming ability.
- Example 4 According to the following formulation, a composition of the present invention was prepared and evaluated according to the procedure of Example 3. The results are shown in Table 4 and FIG. The composition for external use of the present invention showed excellent foam forming ability.
- Example 5 According to the following formulation, a composition of the present invention was prepared and evaluated according to the procedure of Example 3. Moreover, after foam formation, after leaving still at room temperature (after 2, 30, 60, 120 minutes), the foam height was measured and the disappearance rate of foam was examined. The results are shown in Table 5, FIG. 4 and FIG.
- the foam quality was improved by the addition of phospholipid. Moreover, when it left still at room temperature, it turned out that the loss
- Example 6 According to the following formulation, a composition of the present invention was prepared and evaluated according to the procedure of Example 3. The results are shown in Table 6 and FIG. Moreover, the composition 15, the composition 18, and the composition 19 were stirred with the beaker, and left still at room temperature for 3 weeks, and the condition (precipitation) was confirmed. The results are shown in Table 6 and FIG.
- composition for the pump former of the present invention has an excellent foam forming ability regardless of the liquidity (pH). Moreover, the composition for pump formers of the present invention did not show white turbidity or deposits even after standing for 3 weeks after foaming. The composition of the present invention was found to be stable after application.
- Example 7 A composition for the pump former of the present invention was prepared in the same manner as in Example 3 according to the following formulation. This composition had no white turbidity and had good foaming properties.
- Example 8 A composition for the pump former of the present invention was prepared in the same manner as in Example 3 according to the following formulation. This composition had no white turbidity and had good foaming properties.
- Example 9 A composition for the pump former of the present invention was prepared according to the procedure of Example 1 according to the following formulation. Immediately after preparation, the solubilized state of these compositions was visually observed. Furthermore, these compositions were filled in a pump former container and discharged onto a slide glass, and the state of foam (foamability (foam amount) and foam quality (fineness of foam)) was observed.
- Example 10 A composition with the following formulation was prepared according to the procedure of Example 9. The solubilized state and foam state were evaluated by the same method and standard as in Example 9. From this, it was found that the composition of the present invention can be a pharmaceutical composition for a pump former containing various active ingredients.
- Example 11 A composition with the following formulation was prepared according to the procedure of Example 1. With the same method and standard as in Example 1, the presence or absence of white turbidity, foamability and foam quality were evaluated. From this, it was found that polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether is particularly preferable as the nonionic surfactant when the solvent is contained in a high content (for example, 10% by mass or more).
- Example 12 A composition with the following formulation was prepared according to the procedure of Example 9. The solubilized state and foam state were evaluated by the same method and standard as in Example 9. From this, it was found that an antifungal agent can be made into a solubilized state as an active ingredient, and that such a medicament is also excellent in foaming properties.
- Example 13 According to the following prescription, the composition for the pump former of the present invention was prepared and evaluated in the same manner as in Example 6. The results are shown in Table 13 and FIG. From this, it was found that various solvents can be used to make the composition solubilized, and that the composition in the solubilized state is excellent in foaming properties.
- Example 14 According to the following prescription, the composition for pump formers was produced similarly to Example 1, and evaluated. The results are shown in Table 14 and FIG.
- composition of the present invention was found to be a composition having excellent foam characteristics.
- Example 15 According to the following formulation, the composition of the present invention was prepared according to the procedure of Example 1. The state immediately after preparation of the composition was visually observed (no cloudiness: ⁇ , with cloudiness: x). 100 g of the composition was put in a beaker and stirred at 3000 rpm for 1 minute, and then allowed to stand for 2 minutes.
- Example 16 In accordance with the following formulation, a composition of the present invention was prepared and evaluated according to the procedure of Example 15. The results are shown in Table 16 and FIG. The composition for external use of the present invention showed excellent foam forming ability.
- Example 17 According to the following formulation, a composition of the present invention was prepared and evaluated according to the procedure of Example 3. The results are shown in Table 17 and FIG. The composition for external use of the present invention showed excellent foam forming ability.
- Example 18 In accordance with the following formulation, a composition of the present invention was prepared and evaluated according to the procedure of Example 15. The results are shown in Table 18. The composition for external use of the present invention showed excellent foam forming ability. The prescription components in the table are indicated by mass%. The composition of the present invention was found to be a composition having excellent foam properties. On the other hand, precipitation was seen in the comparative example.
- Example 19 According to the following formulation, the composition of the present invention was prepared according to the procedure of Example 1. The composition for external use of the present invention showed excellent foam forming ability.
- Example 20 According to the following prescription, the composition of the present invention was prepared according to the procedure of Example 3, and the foam height was measured and the foam quality was evaluated. The results are shown in Table 20. The composition for external use of the present invention showed excellent foam forming ability.
- Example 21 According to the following prescription, the composition for pump formers of the present invention was prepared and evaluated in the same manner as in Example 9. In addition, changes in the solubilized state over time during storage at room temperature and the state of foam were also observed. From this, it was found that when 10% by mass of alcohol was contained, the foaming property was excellent. Moreover, in such a case, it turned out that a solubilization state is maintained and foaming property is exhibited.
- Example 22 A composition having the following formulation was prepared and evaluated in the same manner as in Example 9. From this, it was found that when 1,3-butylene glycol was used, the foaming property was excellent.
- the prescription components in the table are indicated by mass%.
- Example 23 A composition having the following formulation was prepared and evaluated in the same manner as in Example 9. In addition, the same evaluation was made 3 days after production (storage at room temperature). From this, it was found that various nonionic surfactants can be used in the composition of the present invention. Moreover, it turned out that polyoxyethylene alkyl ether and / or polyoxyethylene alkenyl ether are especially preferable.
- Example 24 A composition having the following formulation was prepared and evaluated in the same manner as in Example 9. From this, it was found that a foam agent can be produced using a monohydric or polyhydric alcohol. In particular, it was found that when polyhydric alcohol was used, the foaming property was excellent.
- Example 25 A composition having the following formulation was prepared and evaluated in the same manner as in Example 9. From this, it was found that various polyhydric alcohols can be highly contained to produce a foam agent.
- Example 26 A composition having the following formulation was prepared and evaluated in the same manner as in Example 9. From this, it was found that a foam agent can be produced by containing 1,3-butylene glycol at various concentrations.
- a composition for a pump former of the present invention and a comparative example were prepared. That is, each prescription component was weighed and heated and dissolved at 80 ° C., solubilized with stirring, and stirred and cooled to room temperature to obtain compositions and comparative examples. Immediately after preparation, the state of these compositions (presence of cloudiness) was visually observed. Furthermore, these compositions were filled in a pump former container and discharged onto a slide glass, and the foamability (foam amount) and foam quality (foam fineness) were observed. The prescription components in the table are indicated by mass%. From this, it was found that an external composition for a pump former containing an active ingredient can be produced using various phospholipids.
- Example 28 According to the following prescription, the composition for pump formers was produced similarly to Example 3, and was evaluated. The results are shown in Table 28. The composition of the present invention showed excellent foam forming ability.
- Example 29 According to the following prescription, it prepared similarly to Example 9, and evaluated. The results are shown in Table 29. From this, it turned out that it can be made a solubilized state by containing a specific solvent, and the composition for external use for pump formers which is excellent in foaming property can be manufactured.
- Example 30 A composition having the following formulation was prepared and evaluated in the same manner as in Example 9. From this, it was found that when N-alkyl-2-pyrrolidone was used as a solvent, a preparation having a wide range of foaming properties and foam properties could be obtained.
- Example 31 According to the following prescription, the composition was produced similarly to Example 1, and evaluated. The results are shown in Table 31 and FIG.
- composition for a pump former having excellent foamability, foam quality and sustainability.
- polyoxyethylene alkyl or alkenyl ether is excellent as a nonionic surfactant.
- Example 32 Compositions were prepared and evaluated according to the procedure of Example 3 according to the following formulation. The results are shown in Table 32. Each composition showed excellent foam-forming ability.
- Example 33 According to the following prescription, a composition was prepared in the same manner as in Example 3 and evaluated in the same manner. The results are shown in Table 33 and FIG. Each composition was found to be a composition for a pump former that solubilizes a poorly soluble drug and is excellent in foamability, foam quality, and durability.
- Example 34 According to the following prescription, a composition was prepared in the same manner as in Example 3 and evaluated in the same manner. The results are shown in Table 34 and FIG. Each composition showed excellent foam-forming ability. When N-alkyl-2-pyrrolidone was substituted with diisopropyl adipate, crystals were precipitated.
- Example 35 A skin external preparation was similarly prepared according to the following formulation. This composition had no white turbidity and had good foaming properties.
- Example 36 A skin external preparation was similarly prepared according to the following formulation. This composition had no white turbidity and had good foaming properties.
- the present invention can be applied to pharmaceutical products.
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Abstract
Description
しかしながら、刺激の低い非イオン性界面活性剤を発泡成分とするスクリーンフォーマー用の外用組成物はこれまで知られていないし、上記のように非イオン性界面活性剤の起泡性の低さからそのような製剤化自体も試みられていなかった。
また、本発明は、好ましくは、このような外用組成物において良好な泡沫を形成する技術を提供することを課題とする。また、本発明は、好ましくは、塗布又は延展時の皮膚刺激性が低減され、アルコールの含有量が高くとも良好な泡沫を吐出するスクリーンフォーマー用の外用組成物を提供することを課題とする。さらに、本発明は、好ましくは有効成分を可溶化し安定に配合可能であり、有効成分の保持量を高め、塗布後の製剤安定性に優れる、スクリーンフォーマー用の外用組成物を提供することを課題とする。また、本発明は、好ましくはアトピー性皮膚炎などの皮膚疾患の治療に好適なスクリーンフォーマー用の外用組成物を提供することを課題とする。
<2>可溶化状態であることを特徴とする<1>に記載の外用組成物。
<3>イオン性界面活性剤の含有量の総和が1質量%以下であることを特徴とする、<1>又は<2>に記載の外用組成物。
<4>塗布後除去しない態様で使用するためのものであることを特徴とする、<1>~<3>の何れかに記載の外用組成物。
<5>水系であることを特徴とする、<1>~<4>の何れかに記載の外用組成物。
<6>前記非イオン性界面活性剤のHLB値が9以上であることを特徴とする、<1>~<5>の何れかに記載の外用組成物。
<7>前記非イオン性界面活性剤が、下記A群から選ばれる1種又は2種以上の界面活性剤であることを特徴とする、<1>~<6>の何れかに記載の外用組成物。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル
<8>前記A群から選ばれる非イオン性界面活性剤の占める割合が、前記外用組成物に含まれる非イオン性界面活性剤の総量に対して80質量%以上であることを特徴とする、<7>に記載の外用組成物。
<9>前記A群の非イオン性界面活性剤の疎水基を構成する炭素鎖の炭素数が8以上であることを特徴とする、<7>又は<8>に記載の外用組成物。
<10>アルコールを総量で10質量%以上含有することを特徴とする、<1>~<9>の何れかに記載の外用組成物。
<11>リン脂質を含むことを特徴とする、<1>~<10>の何れかに記載の外用組成物。
<12>下に示す一群の溶剤から選択される1種または2種以上を1~40質量%含有することを特徴とする、<1>~<11>の何れかに記載の外用組成物。
(溶剤)N-アルキルピロリドン、炭酸アルキレン、ベンジルアルコール、アジピン酸ジエステル、セバシン酸ジエステル
<13>水難溶性又は脂溶性の有効成分を含有することを特徴とする、<12>に記載の外用組成物。
<14>下記A群から選ばれる1種又は2種以上の非イオン性界面活性剤を1~15質量%と、有効成分としてステロイド類、非ステロイド抗炎症剤、殺菌剤、抗真菌剤、抗生物質、抗掻痒剤、ビタミンA類、ビタミンB類、ビタミンC類、ビタミンD類、ビタミンE類及び免疫抑制剤、ヒアルロン酸、ヘパリン類似物質などのムコ多糖類等を0.001~10質量%含み、可溶化状態であることを特徴とする、外用組成物。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル
<15><1>~<14>の何れかに記載の外用組成物をスクリーンフォーマー容器に充填してなる、皮膚外用剤。
<16>水系であるスクリーンフォーマー用の外用組成物の設計方法であって、構成成分を加熱攪拌冷却して調製された組成物が可溶化状態となるように、A群から選ばれる非イオン性界面活性剤を総量で1~15質量%の範囲で選択し、B群から選ばれるアルコールの含有量を総量で5~55質量%の範囲で選択することを特徴とする、設計方法。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル
(B群)
エタノール、イソプロピルアルコール、プロピレングリコール、ジプロピレングリコール、グリセリン、ジグリセリン、1,3-ブチレングリコール、1,2-ペンタンジオール、1,2-ヘキサンジオール、ポリエチレングリコール及びポリプロピレングリコール
本発明の好ましい形態によれば、塗布時及び延展時の皮膚刺激性を低減し、安全に使用可能な、使用時に洗い流さない形態のスクリーンフォーマー用の組成物を提供することができる。また、本発明の好ましい形態では、かかる組成物は、有効成分を可溶化し安定に配合でき、有効成分の保持量が高く、塗布後の製剤安定性に優れる。また、本発明の組成物の好ましい形態では、吐出後の十分な泡立ち、良好な泡のきめ細かさ及び均一性、柔らかく弾力性に富み、塗布後に適度な時間で消泡し泡残りせず、乾きやすく、有効成分の塗布均一性、塗布時の塗り広げ易さに優れる。本発明の好ましい形態では、アトピー性皮膚炎などの皮膚疾患の治療に好適なスクリーンフォーマー用の組成物が提供される。
本発明の組成物は、起泡成分として、非イオン性界面活性剤を含有することを特徴とする。かかる成分は、泡沫の気液界面に配向し、気液界面の表面張力を下げ、泡沫の起泡性、形成された泡の安定性、塗布時の均一性、塗り広げ易さを向上させる作用を有する。
本発明の組成物における非イオン性界面活性剤は、皮膚外用剤に配合することが可能な非イオン性界面活性剤であれば特段の限定なく適用することができる。
また、非イオン性界面活性剤のHLB値は、好ましくは9以上、より好ましくは10以上、さらに好ましくは11以上、特に好ましくは13以上である。非イオン性界面活性剤のHLB値は、例えば10~19である。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル
例えば、非イオン性界面活性剤は、組成物全量に対し1~15質量%含有することが好ましい。また、非イオン性界面活性剤は、組成物全量に対し好ましくは2~12質量%、更に好ましくは2~10質量%、より好ましくは2.5~10質量%、特に好ましくは2.5~7質量%含有する。
ポリオキシエチレンアルキルエーテル又はポリオキシエチレンアルケニルエーテルとしては、ポリオキシエチレンオレイルエーテル、ポリオキシエチレンステアリルエーテル、ポリオキシエチレンラウリルエーテル、ポリオキシエチレンセチルエーテル、ポリオキシエチレンベヘニルエーテルなどが好ましく例示できる。
また、ポリオキシエチレンの平均付加モル数は2~50が好ましく、4~45がより好ましく、4~40が更に好ましく、6~30が特に好ましい。
ポリオキシエチレン脂肪酸エステルとしては、ポリオキシエチレンオレート(オレイン酸ポリエチレングリコール)、ポリオキシエチレンステアレート(ステアリン酸ポリエチレングリコール)、ポリオキシエチレンラウレート(ラウリン酸ポリエチレングリコール)等のポリオキシエチレンの、飽和脂肪酸、不飽和脂肪酸エステルが好ましく例示できる。特に、ポリオキシエチレンモノオレート(モノオレイン酸ポリエチレングリコール)、ポリオキシエチレンモノステアレート(モノステアリン酸ポリエチレングリコール)、ポリオキシエチレンモノラウレート(モノラウリン酸ポリエチレングリコール)が好ましく例示できる。
また、ポリオキシエチレンの平均付加モル数は5~70が好ましく、5~65がより好ましく、5~55が更に好ましい。
また、ポリオキシエチレンの平均付加モル数は5~50が好ましく、10~25がより好ましい。
また、ポリオキシエチレンの平均付加モル数は10~55が好ましく、10~45がより好ましい。
ポリオキシプロピレンポリオキシエチレンアルキルエーテル又はポリオキシプロピレンポリオキシエチレンアルケニルエーテルとしては、ポリオキシプロピレンポリオキシエチレンセチルエーテルなどが好ましく例示できる。
また、ポリオキシエチレンの平均付加モル数は1~30が好ましく、10~20がより好ましい。また、ポリオキシプロピレンの平均付加モル数は4~8が好ましい。
脂肪族アルカノールアミド型界面活性剤としては、外用医薬や化粧品などの通常の皮膚外用剤で使用されるものであれば特段の限定なく適用でき、具体例を挙げれば、ヤシ油脂肪酸モノエタノールアミド(コカミドMEA)、ヤシ油脂肪酸ジエタノールアミド(コカミドDEA)、ラウリン酸モノエタノールアミド(ラウラミドMEA)、ラウリン酸ジエタノールアミド(ラウラミドDEA)、ラウリン酸モノイソプロパノールアミド(ラウラミドMIPA)、パルミチン酸モノエタノールアミド(パルタミドMEA)、パルミチン酸ジエタノールアミド(パルタミドDEA)、ヤシ油脂肪酸メチルエタノールアミド(コカミドメチルMEA)などが好適に例示でき、ヤシ油脂肪酸ジエタノールアミド、ラウリン酸ジエタノールアミド、パルミチン酸ジエタノールアミドが好適に例示でき、かかる成分より1種又は2種以上を選択し、組成物に含有させることができる。脂肪族アルカノールアミド型界面活性剤の含有量は、例えば0.5~10質量%、例えば1~5質量%である。
本発明の組成物は、スクリーンフォーマー用の組成物である。ここで、スクリーンフォーマーとは、液体を加圧し、ネット状のスクリーンを通過させることにより、空気と混合せしめ、発泡させる機構のものを意味し、ポンプフォーマー、チューブフォーマーなどが知られており、特にポンプフォーマーが好ましく例示できる。ポンプフォーマーとはポンプでくみ上げた内容物を、泡状の形態で吐出する機構である。
本発明の組成物は、前記必須成分を起泡成分として含有する。すなわち、本発明の組成物において、前記非イオン性界面活性剤は、ポンプフォーマー等のスクリーンフォーマーによって発泡させる際の起泡成分として機能する。
可溶化状態とは、界面活性剤がミセルを形成し、溶媒に溶解しない物質が透明かつ均一に溶解し、一相の溶液となっている状態をいう。また、可溶化状態は、マイクロエマルションの状態を含む。マイクロエマルションは、100nm以下の微細な粒子径の乳化粒子からなり、熱力学的に安定なミセル溶液である。可溶化状態であることは、外観が透明であることをもって確認できる。また、常法により、粒子サイズを測定することにより可溶化状態を確認することもできる。
可溶化状態とすることにより、良好な起泡性が得られる。また、このような形態によって、発泡後の泡の強度が向上する。また、このような形態では、結晶などを析出することなく、長期保存における安定性に優れる。
本発明の組成物は、水を40~85質量%、より好ましくは50~80質量%、更に好ましくは55~75質量%含有することを特徴とする。本発明において水は、ポンプフォーマーで吐出したときに泡沫を形成する為の、泡沫界面の重要な構成要素であり、前記範囲において、良好な起泡性や泡沫の持続性に優れる。外用に用いる際に、塗布している間安定に泡を維持するためには、水の量を前記範囲とすることが有効である。
本発明の組成物においては、前記必須成分以外に、皮膚外用医薬、化粧料などの外用組成物で使用される任意の成分を含有することができる。このような任意の成分としては、例えば、流動パラフィンやスクワランなどの炭化水素類、ホホバ油、ドデカン酸オレイルエステル、セチルイソオクタネート等のエステル類、N-メチル-2-ピロリドン、N-エチル-2-ピロリドンなどのN-アルキルピロリドン、炭酸エチレン、炭酸プロピレンなどの炭素数2~4の炭酸アルキレン、クロタミトン、クエン酸トリエチル、ジエチレングリコールのエチルエーテル、トリアセチン、アジピン酸ジイソプロピル、アジピン酸ジエチル、セバシン酸ジイソプロピルなどの炭素数5~12の二塩基酸のジエステル、ベンジルアルコール、アセトン、メチルエチルケトン、エチレングリコールアルキルエーテル等の溶剤類、プロピレングリコール、1,3-ブチレングリコール、グリセリン、ジプロピレングリコール、ジグリセリン、ポリエチレングリコール、マルチトール、ソルビトールなどの多価アルコール類、エタノール、イソプロパノール、オレイルアルコール、イソステアリルアルコールなどの一価アルコール類、オレイン酸、イソステアリン酸などの脂肪酸、カルボキシビニルポリマー、キサンタンガムなどの増粘剤、パラベン、クロルヘキシジングルコネート等の殺菌剤などが好適に例示できる。これらの任意成分の内、好適なものを適宜選択し、含有させることができる。これらの成分の好ましい含有量は、それぞれの配合目的により異なるが、大凡0.1~20質量%である。
(溶剤)N-アルキルピロリドン、炭酸アルキレン、ベンジルアルコール、アジピン酸ジエステル、セバシン酸ジエステル
かかる溶剤は、難溶解性の薬剤の溶解性に優れ、難溶解性の薬剤を可溶化し組成物に安定に含有することができる。
N-アルキルピロリドンとしては、炭素数1~4のアルキル鎖を有するN-アルキル-2-ピロリドンが好適に例示でき、特に、N-メチル-2-ピロリドン、N-エチル-2-ピロリドンが好ましい。
炭酸アルキレンとしては、炭酸プロピレンが好ましい。
アジピン酸ジエステルとしては、アジピン酸ジエチル、アジピン酸ジイソプロピルが挙げられる。
セバシン酸ジエステルとしては、セバシン酸ジエチル、セバシン酸ジイソプロピルが挙げられる。
また、アセトン、メチルエチルケトン、エチレングリコールアルキルエーテルも溶剤として挙げられる。
かかる成分は、単独で組成物に含有させることもできるし、1種又は2種以上を選択し組成物に含有させることができる。また、本発明の組成物における溶剤の好ましい含有量は、組成物全量に対し好ましくは1~40質量%、より好ましくは1~30質量%、さらに好ましくは1~15質量%、特に好ましくは1~10質量%、より好ましくは、3~8質量%である。また、溶剤は、難溶解性の薬剤(有効成分)の20~5000質量倍、より好ましくは30~2500質量倍、更に好ましくは40~1000質量倍含有することが好ましい。例えば、20~250質量倍、より好ましくは、30~200質量倍含有することが挙げられる。かかる成分は、吐出した泡の強度を高めることができる。また、難溶解性の薬剤(有効成分)を含有する場合には、これを安定的に配合することが可能となる。また、かかる成分は、塗布及び延展時の刺激感を低減することができる。この様な効果を奏するためには、前記含有量が好ましい。
エタノールを5~20質量%、より好ましくは10~15質量%含有する形態、エタノールに加え多価アルコールを含有する形態、ポリエチレングリコールを0.5~30質量%、より好ましくは1.5~25質量%含有し、且つ他の多価アルコールも含有する形態、1,3-ブチレングリコールを5~40質量%、より好ましくは5~30質量%、さらに好ましくは10~25質量%含有する形態、前記1,3-ブチレングリコールに加え他の多価アルコールも含有する形態が好ましい。
前述のアルコール、取り分け、多価アルコールを高濃度で含有することにより、後述する非イオン性界面活性剤との相互作用により、界面が強化された泡を形成することができる。また、アルコールを高濃度で含有することにより、保湿感を実感できる組成物となる。
かかる成分は、組成物の泡質を向上させる作用を有する。また、かかる成分は、保湿作用に優れるほか、起泡性を低下させることなく、塗布後の適度な時間で消泡するため、塗布予及び延展時の刺激性が低く、伸ばし易く、泡残りしないため、アトピー性皮膚炎などの皮膚バリア機能が低下した皮膚への塗布に適する。かかる成分は、唯1種を含有することもできるし、2種以上を組み合わせて含有させることもできる。リン脂質は、組成物全量に対し0.001~10質量%、より好ましくは、0.01~5質量%、特に好ましくは0.01~1質量%含有することが好ましい。かかる成分は、吐出した泡の強度を高めるとともに、泡がpHの影響を受けて性状が変化するのを防ぐ作用を有する。また、かかる成分は、塗布延展時の使用感を向上させるとともに、皮膚が刺激を受けるのを避けることができる。この様な効果を奏するためには、前記含有量が好ましい。
リン脂質を除くイオン性界面活性剤の含有量の総和は1質量%以下であることが好ましく、実質的に含有しないことが好ましい。
これらの非イオン性界面活性剤の使用量は、非イオン性界面活性剤に占める割合として、好ましくは20質量%以下、より好ましくは10質量%以下、さらに好ましくは5質量%以下、特に好ましくは含有しない。
本発明の皮膚外用剤は、スクリーンフォーマー容器に充填してなることを特徴とする。ここで、スクリーンフォーマーとは、液体を加圧し、ネット状のスクリーンを通過させることにより、空気と混合せしめ、発泡させる機構のものを意味し、ポンプフォーマー、チューブフォーマーなどが知られており、特にポンプフォーマーが好ましく例示できる。ポンプフォーマーとはポンプでくみ上げた内容物を、泡状の形態で吐出する機構である。スクリーンフォーマー容器とは、前記機構を有する容器を意味する。
このようなフォーム剤形としての有用性から、本発明の皮膚外用剤は、特に医薬品であることが好ましい。医薬品の場合には、塗布後除去しないで用いられる。本発明の医薬品は、その安全性と起泡性において優れる。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル
これらの非イオン性界面活性剤を1~15質量%の範囲内で選択する。
非イオン性界面活性剤の好ましい態様や含有量は、前述したとおりである。
(B群)
エタノール、イソプロピルアルコール、プロピレングリコール、ジプロピレングリコール、グリセリン、ジグリセリン、1,3-ブチレングリコール、1,2-ペンタンジオール、1,2-ヘキサンジオール、ポリエチレングリコール、ポリプロピレングリコール
アルコールの好ましい態様や含有量は、前述したとおりである。
可溶化状態とは、界面活性剤がミセルを形成し、溶媒に溶解しない物質が透明かつ均一に溶解し、一相の溶液となっている状態をいう。また、可溶化状態は、マイクロエマルションの状態を含む。マイクロエマルションは、100nm以下の微細な粒子径の乳化粒子からなり、熱力学的に安定なミセル溶液である。可溶化状態であることは、外観が透明であることをもって確認できる。また、常法により、粒子サイズを測定することにより可溶化状態を確認することもできる。
後述する実施例に示すように、可溶化状態とすることにより、良好な起泡性が得られることが見出された。そのため、処方設計を可溶化状態となるように行うことが、フォーム用組成物の設計に重要である。
すなわち、本発明の設計方法は、上述した非イオン性界面活性剤、アルコール、水及び溶剤の合計含有量が、90質量%以上、好ましくは95質量%以上の組成物の設計方法として好適である。
(1)有効成分及びその濃度を、治療対象に応じて選択する。
(2)前述した範囲内で、非イオン性界面活性剤、アルコール、所望により((1)で選択した有効成分が難溶性の場合)溶剤を任意に選択し、残量を水として組成物を調製する。
(3)(2)で選択した各成分の種類及び量の少なくとも1つを変え、残量を水で調整した組成物を調製する。
(4)得られた複数の組成物の製造直後及び48時間(好ましくは72時間)経過後(室温で)の溶状を、目視にて観察する。
(5)可溶化状態が維持されている組成物を、フォーム用組成物として選択する。
(6)外用医薬に通常用いられるpH調整剤や防腐剤等、可溶化状態に影響しない少量成分を適宜選択する。
本発明の評価方法は、前記A群から選ばれる非イオン性界面活性剤を起泡成分として1~15質量%含み、B群から選ばれるアルコールを5~55質量%含む、水系であるスクリーンフォーマー用の外用組成物の起泡性の評価方法であって、組成物の可溶化状態を指標として前記組成物の起泡性を評価することを特徴とする。
すなわち、特定の非イオン性界面活性剤とアルコールとを、前記範囲内で選択することで構成した組成物について、その可溶化状態を評価し、これを指標とすることで、スクリーンフォーマーによる起泡性を評価することができる。
本発明の設計方法、評価方法における種々の好ましい態様は、前述した組成物についての記載が当てはまる。
ポリオキシエチレン(9)ラウリルエーテル(BL-9EX) 14.5
ポリオキシエチレン(10)オレイルエーテル(BO-10V) 14.5
ポリオキシエチレン(20)オレイルエ-テル(BO-20V) 17.0
ポリオキシエチレン(10)セチルエーテル(BC-10) 13.5
ポリオキシエチレン(23)セチルエーテル(BC-23) 18.0
ポリオキシエチレン(20)ステアリルエーテル(BS-20) 18.0
ポリオキシエチレン(20)ベヘニルエーテル(BB-20) 16.5
モノステアリン酸ポリエチレングリコール(10E.O.)(MYS-10V) 11.0
モノステアリン酸ポリエチレングリコール(40E.O.)(MYS-40MV) 17.5
モノオレイン酸ポリエチレングリコール(10E.O.)(MYO-10V) 11.0
モノステアリン酸ポリオキシエチレン(20)ソルビタン(TS-10MV) 14.9
モノオレイン酸ポリオキシエチレン(20)ソルビタン(TO-10MV) 15.0
ポリオキシエチレン(60)硬化ヒマシ油(HCO-60) 14.0
ポリオキシエチレン(10)硬化ヒマシ油(HCO-10) 6.5
ポリオキシエチレン(20)ポリオキシプロピレン(8)セチルエーテル(PBC-44) 12.5
モノステアリン酸グリセリン(MGS-AMV) 4.0
モノステアリン酸ソルビタン(SS-10MV) 4.7
下記処方に従って、本発明のポンプフォーマー用の組成物及び比較例を作製した。即ち、処方成分をそれぞれ秤量し、80℃で加熱溶解した後、攪拌下、可溶化させ、室温まで攪拌冷却して各組成物を得た。調製直後、これら組成物の状態(白濁及び分離の有無)を目視にて観察した。さらに、これら組成物をポンプフォーマー容器に充填し、スライドグラス上に吐出させて、起泡性(泡量)及び泡質(泡の肌理細かさ)、泡の持続性(室温30分静置後の泡の状態)及び泡質(室温30分静置後の泡の肌理細かさ)を観察した。表中の処方成分は、質量%にて表示している(以下の表において同じ。)。
目視により白濁が認められない場合(○)
目視により白濁が認められる場合(×)
(分離)
目視により分離が認められない場合(○)
分離が認められる場合(×)
(起泡性)
吐出した際に十分な泡量の泡が得られる(○)
吐出した際に少量の泡が得られる(△)
吐出した際に泡が得られない(×)
(泡質)
吐出した際に肌理の細かい泡が得られる(○)
吐出した際に粗い泡が得られる(△)
吐出した際に泡が得られない(×)
(持続性)
室温30分静置後の泡量が多い(○)
室温30分静置後の泡量が少ない(△)
室温30分静置後に泡がない(×)
(泡質)
室温30分静置後に肌理の細かい泡が残る(○)
室温30分静置後の粗い泡が残る(△)
室温30分静置後に泡がない(×)
の基準により評価した。結果を表1及び図1に示す。
一方、比較例1~3は、可溶化状態ではなく(白濁又は分離が見られた)、起泡性が十分ではなかったため、ポンプフォーマー用の組成物としては使用できないことが分かった。
これより、可溶化状態とすることで起泡性が得られ、ポンプフォーマー用の組成物として使用できることが分かる。
アルコールと溶剤の影響を見るために、下記の処方の比較例を、実施例1の手技に従って調製した。結果は、白濁した液(可溶化状態ではない)であり、泡の形成も不十分であった。これより、組成物の性状としては透明な1相の液状、すなわち可溶化状態であることが好ましいことがわかった。また、泡の形成には、アルコール、溶剤が存在することが好ましいことも分かった。
下記処方に従って、本発明の組成物を、実施例1の手技に従って調製した。組成物の調製直後の状態を目視にて観察した(白濁なし:○、白濁あり:×)。各組成物100gをビーカーに入れ、3000rpmで1分間撹拌した後、2分間静置し泡と溶液の境界線が明瞭になったところで生成した泡の高さ(mm)を測定し、泡質(撹拌後に肌理の細かい泡が得られる(○)、撹拌後に粗い泡が得られる(△)、撹拌後に泡が得られない(×))を目視にて確認した。結果を表3及び図2に示す。本発明の外用の組成物は、優れた泡形成能を示した。
下記処方に従って、本発明の組成物を、実施例3の手技に従って調製し、評価した。結果を表4及び図3に示す。本発明の外用の組成物は、優れた泡形成能を示した。
下記処方に従って、本発明の組成物を、実施例3の手技に従って調製し、評価した。また、泡形成後、室温にて静置した後(2、30、60、120分後)の泡高さを測定し、泡の消失速度を検討した。結果を表5、図4及び図5に示す。
下記処方に従って、本発明の組成物を、実施例3の手技に従って調製し、評価した。結果を表6及び図6に示す。また、組成物15、組成物18及び組成物19を、ビーカーで撹拌後、室温にて3週間静置し状況(析出)を確認した。結果を表6及び図7に示す。
下記処方に従って、本発明のポンプフォーマー用の組成物を実施例3と同様に作製した。この組成物は、白濁がなく、良好な起泡性を有した。
下記処方に従って、本発明のポンプフォーマー用の組成物を実施例3と同様に作製した。この組成物は、白濁がなく、良好な起泡性を有した。
下記処方に従って、本発明のポンプフォーマー用の組成物を実施例1の手技に従って調製した。調製直後、これら組成物の可溶化状態を目視にて観察した。さらに、これら組成物をポンプフォーマー容器に充填し、スライドグラス上に吐出させて、泡の状態(起泡性(泡量)及び泡質(泡の肌理細かさ))を観察した。
目視により白濁又は分離が認められない場合(○)
目視により白濁又は分離が認められる場合(×)
(泡)
泡量が十分であり泡質はきめ細かい(〇)
泡量は十分であるが泡質は粗い、若しくは泡量が不十分(△)
起泡しない(×)
の基準により評価した。
これより、可溶化状態である場合に、起泡性に優れることがわかった。
下記の処方の組成物を、実施例9の手技に従って調製した。実施例9と同様の方法及び基準で、可溶化状態及び泡の状態を評価した。これより、本発明の組成物には、様々な有効成分を含有させたポンプフォーマー用の医薬組成物とすることができることがわかった。
下記の処方の組成物を、実施例1の手技に従って調製した。実施例1と同様の方法及び基準で、白濁の有無、起泡性及び泡質を評価した。これより、溶剤を高含有量(例えば10質量%以上)で含む場合に、非イオン性界面活性剤として特にポリオキシエチレンアルキルエーテル及び/又はポリオキシエチレンアルケニルエーテルが好ましいことが分かった。
下記の処方の組成物を、実施例9の手技に従って調製した。実施例9と同様の方法及び基準で、可溶化状態及び泡の状態を評価した。これより、抗真菌薬を有効成分として可溶化状態とすることができること、またこのような医薬は起泡性にも優れることが分かった。
下記処方に従って、本発明のポンプフォーマー用の組成物を実施例6と同様に作製し、評価した。結果を表13、図8に示す。これより、種々の溶剤を用いて可溶化状態とすることができること、また可溶化状態にある組成物は起泡性に優れることが分かった。
下記処方に従って、実施例1と同様にポンプフォーマー用の組成物を作製し、評価した。結果を表14及び図9に示す。
下記処方に従って、本発明の組成物を、実施例1の手技に従って調製した。組成物の調製直後の状態を目視にて観察した(白濁なし:○、白濁あり:×)。組成物100gをビーカーに入れ、3000rpmで1分間撹拌した後、2分間静置し泡と溶液の境界線が明瞭になったところで生成した泡の高さ(mm)を測定し、泡質(撹拌後に肌理の細かい泡が得られる(○)、撹拌後に粗い泡が得られる(△)、撹拌後に泡が得られない(×))、また、室温で1週間静置した後の析出(析出なし:○、白濁:△、析出あり:×)を目視にて確認した。結果を表15及び図10に示す。本発明の外用の組成物は、優れた泡形成能を示した。また、本発明の組成物は、泡形成後、室温1週間静置した場合に析出物の存在は認められなかった。一方、ラウリン酸ジエタノールアミドを用いたポンプフォーマー用の組成物を使用した場合には、析出物が認められた。
下記処方に従って、本発明の組成物を、実施例15の手技に従って調製し、評価した。結果を表16及び図11に示す。本発明の外用の組成物は、優れた泡形成能を示した。
下記処方に従って、本発明の組成物を、実施例3の手技に従って調製し、評価した。結果を表17及び図12に示す。本発明の外用組成物は、優れた泡形成能を示した。
下記処方に従って、本発明の組成物を、実施例15の手技に従って調製し、評価した。結果を表18に示す。本発明の外用の組成物は、優れた泡形成能を示した。表中の処方成分は、質量%にて表示している。本発明の組成物は、優れた泡特性を有する組成物であることが分かった。一方、比較例は析出が見られた。
下記処方に従って、本発明の組成物を、実施例1の手技に従って調製した。本発明の外用の組成物は、優れた泡形成能を示した。
下記処方に従って、本発明の組成物を、実施例3の手技に従って調製し、泡高さの測定と泡質の評価を行った。結果を表20に示す。本発明の外用組成物は、優れた泡形成能を示した。
下記処方に従って、本発明のポンプフォーマー用の組成物を実施例9と同様に作製し、評価した。また、室温保存下の経時的な可溶化状態の変化、及び泡の状態についても観察した。これより、アルコールを10質量%含有する場合に、起泡性に優れることがわかった。また、このような場合に、可溶化状態が維持され、起泡性も発揮されることが分かった。
下記の処方の組成物を、実施例9と同様に調製し、評価した。これより、1,3-ブチレングリコールを使用した場合に、起泡性に優れることがわかった。表中の処方成分は、質量%にて表示している。
下記の処方の組成物を、実施例9と同様に調製し、評価した。また、製造後3日後(室温での保存)にも同様に評価をした。これより、本発明の組成物には、様々な非イオン性界面活性剤を使用することが出来ることが分かった。また、中でもポリオキシエチレンアルキルエーテル及び/又はポリオキシエチレンアルケニルエーテルが好ましいことが分かった。
下記の処方の組成物を、実施例9と同様に調製し、評価した。これより、一価又は多価のアルコールを用いて、フォーム剤を製造することが出来ることが分かった。特に、多価アルコールを用いた場合に起泡性に優れることが分かった。
下記の処方の組成物を実施例9と同様に調製し、評価した。これより、種々の多価のアルコールを高含有させ、フォーム剤を製造することが出来ることが分かった。
下記の処方の組成物を、実施例9と同様に調製し、評価した。これより、1,3-ブチレングリコールを種々の濃度で含有させ、フォーム剤を製造することが出来ることが分かった。
下記処方に従って、本発明のポンプフォーマー用の組成物及び比較例を作製した。即ち、処方成分をそれぞれ秤量し、80℃で加熱溶解した後、攪拌下、可溶化させ、室温まで攪拌冷却して組成物及び比較例を得た。調製直後、これら組成物の状態(白濁の有無)を目視にて観察した。さらに、これら組成物をポンプフォーマー容器に充填し、スライドグラス上に吐出させて、起泡性(泡量)及び泡質(泡の肌理細かさ)を観察した。表中の処方成分は、質量%にて表示している。これより、様々なリン脂質を用いて、有効成分を含有するポンプフォーマー用の外用組成物を製造することが出来ることが分かった。
(白濁)
目視により白濁が認められない場合(○)
目視により白濁が認められる場合(×)
(起泡性)
吐出した際に十分な泡量の泡が得られる(○)
吐出した際に少量の泡しか得られない(△)
吐出した際に泡が得られない(×)
(泡質)
吐出した際に肌理の細かい泡が得られる(○)
吐出した際に粗い泡が得られる(△)
吐出した際に泡が得られない(×)
下記処方に従って、実施例3と同様にポンプフォーマー用の組成物を作製し、評価した。結果を表28に示す。本発明の組成物は、優れた泡形成能を示した。
下記処方に従って、実施例9と同様に調製し、評価した。結果を表29に示す。これより、特定の溶剤を含有することで、可溶化状態とすることができること、起泡性に優れるポンプフォーマー用の外用組成物を製造することが出来ることが分かった。
下記の処方の組成物を、実施例9と同様に調製し、評価した。これより、溶剤としてN-アルキル-2-ピロリドンを用いた場合には、広く起泡性及び泡質に優れた製剤を得られることがわかった。
下記処方に従って、実施例1と同様に組成物を作製し、評価した。結果を表31及び図13に示す。
下記処方に従って、組成物を、実施例3の手技に従って調製し、評価した。結果を表32に示す。各組成物は、優れた泡形成能を示した。
下記処方に従って、実施例3と同様に組成物を調製し、同様に評価した。結果を表33及び図14に示す。各組成物は、難溶解性の薬物を可溶化し、起泡性、泡質、持続性に優れるポンプフォーマー用の組成物であることが分かった。
下記処方に従って、実施例3と同様に組成物を調製し、同様に評価した。結果を表34及び図15に示す。各組成物は、優れた泡形成能を示した。なお、N-アルキル-2-ピロリドンを、アジピン酸ジイソプロピルに置換した場合には、結晶が析出した。
下記処方に従って、同様に皮膚外用剤を作製した。この組成物は、白濁がなく、良好な起泡性を有した。
下記処方に従って、同様に皮膚外用剤を作製した。この組成物は、白濁がなく、良好な起泡性を有した。
Claims (16)
- 起泡成分として非イオン性界面活性剤を含むことを特徴とする、スクリーンフォーマー用の外用組成物。
- 可溶化状態であることを特徴とする、請求項1に記載の外用組成物。
- イオン性界面活性剤の含有量の総和が1質量%以下であることを特徴とする、請求項1又は2に記載の外用組成物。
- 塗布後除去しない態様で使用するためのものであることを特徴とする、請求項1~3の何れか一項に記載の外用組成物。
- 水系であることを特徴とする、請求項1~4の何れか一項に記載の外用組成物。
- 前記非イオン性界面活性剤のHLB値が9以上であることを特徴とする、請求項1~5の何れか一項に記載の外用組成物。
- 前記非イオン性界面活性剤が、下記A群から選ばれる1種又は2種以上の界面活性剤であることを特徴とする、請求項1~6の何れか一項に記載の外用組成物。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル - 前記A群から選ばれる非イオン性界面活性剤の占める割合が、前記外用組成物に含まれる非イオン性界面活性剤の総量に対して80質量%以上であることを特徴とする、請求項7に記載の外用組成物。
- 前記A群の非イオン性界面活性剤の疎水基を構成する炭素鎖の炭素数が8以上であることを特徴とする、請求項7又は8に記載の外用組成物。
- アルコールを総量で10質量%以上含有することを特徴とする、請求項1~9の何れか一項に記載の外用組成物。
- リン脂質を含むことを特徴とする、請求項1~10の何れか一項に記載の外用組成物。
- 下に示す一群の溶剤から選択される1種または2種以上を1~40質量%含有することを特徴とする、請求項1~11の何れか一項に記載の外用組成物。
(溶剤)N-アルキルピロリドン、炭酸アルキレン、ベンジルアルコール、アジピン酸ジエステル、セバシン酸ジエステル - 水難溶性又は脂溶性の有効成分を含有することを特徴とする、請求項12に記載の外用組成物。
- 下記A群から選ばれる1種又は2種以上の非イオン性界面活性剤を1~15質量%と、有効成分としてステロイド類、非ステロイド抗炎症剤、殺菌剤、抗真菌剤、抗生物質、抗掻痒剤、ビタミンA類、ビタミンB類、ビタミンC類、ビタミンD類、ビタミンE類及び免疫抑制剤、ヒアルロン酸、ヘパリン類似物質などのムコ多糖類等を0.001~10質量%含み、可溶化状態であることを特徴とする、外用組成物。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル - 請求項1~14の何れかに記載の外用組成物をスクリーンフォーマー容器に充填してなる、皮膚外用剤。
- 水系であるスクリーンフォーマー用の外用組成物の設計方法であって、構成成分を加熱攪拌冷却して調製された組成物が可溶化状態となるように、A群から選ばれる非イオン性界面活性剤を総量で1~15質量%の範囲で選択し、B群から選ばれるアルコールの含有量を総量で5~55質量%の範囲で選択することを特徴とする、設計方法。
(A群)
ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルケニルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸グリセリル、ポリオキシプロピレンポリオキシエチレンアルキルエーテル及びポリオキシプロピレンポリオキシエチレンアルケニルエーテル
(B群)
エタノール、イソプロピルアルコール、プロピレングリコール、ジプロピレングリコール、グリセリン、ジグリセリン、1,3-ブチレングリコール、1,2-ペンタンジオール、1,2-ヘキサンジオール、ポリエチレングリコール及びポリプロピレングリコール
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WO2016104661A1 (ja) * | 2014-12-24 | 2016-06-30 | 株式会社ポーラファルマ | スクリーンフォーマー用の外用組成物 |
JP6340395B2 (ja) | 2016-10-27 | 2018-06-06 | 株式会社 資生堂 | 泡状水性化粧料 |
JP6781358B1 (ja) * | 2018-12-19 | 2020-11-04 | 日東メディック株式会社 | 起泡性外用組成物 |
JP7236328B2 (ja) * | 2019-05-31 | 2023-03-09 | 花王株式会社 | フォーマー容器入り液体洗浄剤 |
CN111057619B (zh) * | 2019-12-16 | 2021-07-30 | 青岛中科润美润滑材料技术有限公司 | 一种人造板设备穿针结焦积碳清洗剂 |
JP6923971B1 (ja) * | 2020-07-31 | 2021-08-25 | 丸石製薬株式会社 | 低濃度エタノール含有酸性起泡組成物 |
CN113440483B (zh) * | 2021-06-30 | 2023-04-07 | 佛山市南海东方澳龙制药有限公司 | 一种犬用盐酸特比萘芬喷剂及其制备方法 |
JP7216444B1 (ja) | 2021-12-01 | 2023-02-01 | アピ株式会社 | 外用組成物 |
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JP7073050B2 (ja) | 2016-06-16 | 2022-05-23 | サンファーマ株式会社 | スクリーンフォーマー用の組成物 |
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EP3238710A4 (en) | 2018-07-25 |
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JP2016121146A (ja) | 2016-07-07 |
JP2016121147A (ja) | 2016-07-07 |
JP6368834B2 (ja) | 2018-08-01 |
KR20170096053A (ko) | 2017-08-23 |
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JP6696768B2 (ja) | 2020-05-20 |
KR102572389B1 (ko) | 2023-08-29 |
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US10265268B2 (en) | 2019-04-23 |
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AU2021203466A1 (en) | 2021-06-24 |
JP2017214407A (ja) | 2017-12-07 |
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