WO2023276203A1 - 使用感を改善したアルコール系擦り込み式手指消毒組成物 - Google Patents
使用感を改善したアルコール系擦り込み式手指消毒組成物 Download PDFInfo
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- WO2023276203A1 WO2023276203A1 PCT/JP2022/001044 JP2022001044W WO2023276203A1 WO 2023276203 A1 WO2023276203 A1 WO 2023276203A1 JP 2022001044 W JP2022001044 W JP 2022001044W WO 2023276203 A1 WO2023276203 A1 WO 2023276203A1
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- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
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- YWIVKILSMZOHHF-QJZPQSOGSA-N sodium;(2s,3s,4s,5r,6r)-6-[(2s,3r,4r,5s,6r)-3-acetamido-2-[(2s,3s,4r,5r,6r)-6-[(2r,3r,4r,5s,6r)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2- Chemical compound [Na+].CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 YWIVKILSMZOHHF-QJZPQSOGSA-N 0.000 description 1
- CRPCXAMJWCDHFM-UHFFFAOYSA-M sodium;5-oxopyrrolidine-2-carboxylate Chemical compound [Na+].[O-]C(=O)C1CCC(=O)N1 CRPCXAMJWCDHFM-UHFFFAOYSA-M 0.000 description 1
- 229960002920 sorbitol Drugs 0.000 description 1
- 229940032094 squalane Drugs 0.000 description 1
- 229940031439 squalene Drugs 0.000 description 1
- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/02—Acyclic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P3/00—Fungicides
Definitions
- the present invention relates to an alcohol-based rubbing-type hand sanitizing composition based on a lower alcohol such as ethanol.
- Alcohol-based hand sanitizers are very useful not only against the new coronavirus, but also against seasonal influenza and food poisoning. For this reason, even in the after-corona scene where the new coronavirus infection has converged, in order to widely establish alcohol-based hand disinfection as a daily habit in the world, it is necessary to solve the above-mentioned problems and use an alcohol-based hand sanitizer that can be used comfortably every day. Development of hand sanitizers is necessary.
- Patent Document 1 discloses a viscous sterilizer with high practical value that has an easy-to-use moderate viscosity, excellent durability of sterilization effect after use, and smooth hand skin (smooth feel).
- the agent composition consists of 50 to 95% by volume of ethanol, 0.1 to 3.0% by weight of carboxyvinyl polymer, 0.01 to 2.0% by weight of alkanolamine, and 5 to 50% by volume of water, pH 5 to 8. is described, and it is further described that a quaternary ammonium salt or fatty acid ester can be incorporated.
- a glycerin fatty acid ester and isopropyl myristate in combination as fatty acid esters in a specific ratio.
- Patent Document 2 describes an inexpensive external sterilization disinfectant that has sterilization power and safety (low toxicity) effective against a wide range of microorganisms, and prevents rough hands even when used for hand disinfection.
- 80 to 85 vol% ethanol, 3.7 to 10 vol% isopropanol, and one or more of glycerin, propylene glycol, sorbitol, 1,3-butylene glycol, polyethylene glycol, hyaluronic acid, and urea to prevent rough hands.
- a topical antiseptic containing moisturizing ingredients is described. However, it does not describe or suggest blending a fatty acid ester or using a glycerin fatty acid ester and isopropyl myristate in combination as fatty acid esters in a specific ratio.
- Patent Document 3 in a hand rub composition containing ethanol as a lower alcohol, at least 0.2 w / w% isopropyl myristate is blended as an anti-pilling agent in order to improve the feel on the skin. and that glycol and/or phenoxyethanol can be added.
- Patent Document 3 discloses a gel-like rubbing agent containing 70 v/v% ethanol, 0.3 w/w% carbopol, 0.5 w/w% dipropylene glycol, and 0.2 w/w% isopropyl myristate.
- this rub-in hand sanitizer contains glycerin, allantoin, isopropyl myristate, glycerin fatty acid ester, ethyl paraoxybenzoate, N-cocoate fatty acid acyl-L-arginine ethyl, and DL
- glycerin allantoin
- isopropyl myristate glycerin fatty acid ester
- ethyl paraoxybenzoate N-cocoate fatty acid acyl-L-arginine ethyl
- DL DL
- a liquid-type disinfectant containing pyrrolidone carboxylate Non-Patent Document 1
- a gel-type disinfectant that additionally contains hydroxypropylcellulose Non-Patent Document 2
- JP-A-4-305504 JP 2004-155712 A Japanese Patent Publication No. 2016-505576
- An object of the present invention is to provide an alcohol-based rubbing-type hand sanitizing composition based on a lower alcohol such as ethanol.
- the object of the present invention is to provide an alcohol-based rubbing-type hand sanitizing composition that is effective in preventing infectious diseases caused by various microorganisms, including the new coronavirus, and that has an excellent feeling of use on fingers.
- the inventors of the present invention have been conducting research and development work every day, and have found a liquid disinfecting composition containing a lower alcohol at a ratio of 50 to 90 v / v% effective in preventing infectious diseases caused by various microorganisms.
- a polyhydric alcohol such as glycerin, which is known as a moisturizing agent
- the moisture of the fingers after rubbing is slightly improved, but a feeling of resistance occurs when rubbing into the fingers, and a squeaky creak occurs after rubbing. , there is a problem that this tendency increases as the compounding amount is increased.
- the present inventors added thixotropy as a thickening agent to a liquid disinfecting composition having a lower alcohol concentration of 50 to 90 v/v% in order to solve the problem of liquid disinfecting compositions such as overflowing from hands and scattering around. It was confirmed that by blending an acrylic acid-based polymer such as a carboxyvinyl polymer having a specific property, the above-mentioned problem was solved due to the stickiness during ejection, and the liquid became liquid when rubbed into the hands. On the other hand, when a polyhydric alcohol such as glycerin is blended as a moisturizing agent, the moisture of the fingers after rubbing is slightly improved, but resistance is generated during rubbing, and squeakiness is caused after rubbing.
- a polyhydric alcohol such as glycerin
- the method described above that is, the method of blending a predetermined amount of isopropyl myristate and a predetermined amount of glycerin fatty acid ester as fatty acid esters in addition to a predetermined amount of polyhydric alcohol, is effective, and a combination of the two is effective. It was confirmed that by blending, the feeling of sliminess and stickiness caused by blending only one of them is significantly suppressed, and it is possible to obtain a good moist feeling.
- Liquid hand rub-in disinfectant composition (I-1) pH 5.5 to 7.5 rub-in hand disinfectant composition containing the following ingredients: (A) lower alcohol: 50 to 90% by volume, (B) at least one polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol: 0.01 to 1.0% by mass; (C) isopropyl myristate and glycerin fatty acid ester: 0.01 to 0.12% by mass each, and (D) water.
- A lower alcohol: 50 to 90% by volume
- B at least one polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol: 0.01 to 1.0% by mass
- C isopropyl myristate and glycerin fatty acid ester: 0.01 to 0.12% by mass each
- D water.
- (I-2) The rubbing-type hand sanitizing composition according to (I-1), wherein the lower alcohol is at least one selected from ethanol, n-propyl alcohol, and isopropyl alcohol, preferably ethanol.
- (I-3) (I-1) or (I -2) Rub-in type hand disinfectant composition described in.
- (I-4) The glycerin fatty acid ester of component (C) is obtained by ester-bonding a saturated or unsaturated fatty acid having 6 to 16 carbon atoms to one hydroxy group of glycerin, (I-1) to (I) -3) Rub-in type hand sanitizing composition according to any one.
- (II) Viscous rub-in type hand sanitizer composition (II-1) A pH 5.5-7.5 rub-in type hand sanitizer composition containing the following ingredients: (A) lower alcohol: 50 to 90% by volume, (B) at least one polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol: 0.01 to 1.0% by mass; (C) isopropyl myristate and glycerin fatty acid ester: 0.01 to 0.12% by mass each, (E) at least one acrylic polymer selected from the group consisting of a carboxyvinyl polymer and an acrylic acid-alkyl methacrylate copolymer; (F) a pH adjuster, and (D) water.
- A lower alcohol: 50 to 90% by volume
- B at least one polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol: 0.01 to 1.0% by mass
- (II-2) The rubbing-type hand disinfection composition according to (II-1), wherein the lower alcohol is at least one selected from ethanol, n-propyl alcohol, and isopropyl alcohol, preferably ethanol.
- the ratio of isopropyl myristate and glycerin fatty acid ester of component (C) is 8 to 1200 parts by mass, preferably 10 to 100 parts by mass, per 100 parts by mass of isopropyl myristate.
- (II-1) or (II-2) rub-in type hand disinfectant composition is 8 to 1200 parts by mass, preferably 10 to 100 parts by mass, per 100 parts by mass of isopropyl myristate.
- the glycerin fatty acid ester of component (C) is obtained by ester-bonding a saturated or unsaturated fatty acid having 6 to 16 carbon atoms to one hydroxy group of glycerin, (II-1) to (II) -3) Rub-in type hand sanitizing composition according to any one. (II-5) of (II-1) to (II-4), wherein the glycerin fatty acid ester of component (C) is a glycerin fatty acid ester other than a lauric fatty acid ester, preferably a capric fatty acid ester.
- An antiseptic hand rub composition as described in any of the preceding paragraphs.
- (II-6) The rubbing-type hand disinfectant composition according to any one of (II-1) to (II-5), wherein the carboxyvinyl polymer as component (C) has the following properties: A 0.2 w/v% aqueous solution (pH 7.0-7.5, 20 ⁇ 1 ° C.) was measured using a Brookfield rotational viscometer (No. 2 or No. 4, 12 rotations), and the viscosity was 1,500. ⁇ 50,000 mPa ⁇ s, preferably 1,500 to 30,000 mPa ⁇ s, more preferably 1,500 to 7,500 mPa ⁇ s.
- the alkyl acrylate/methacrylate copolymer of component (C) is an (acrylates/alkyl acrylate (C10-30)) crosspolymer having the following properties: (II-1) to ( II-6) Rub-in hand disinfectant composition according to any one of: A 0.5 w/v% aqueous solution (pH 7.0-7.5, 20 ⁇ 1 ° C.) was measured using a Brookfield rotational viscometer (No. 2 or 4, 12 rotations), and the viscosity was 25,000. ⁇ 65,000 mPa ⁇ s, preferably 45,000 to 65,000 mPa ⁇ s.
- the pH adjuster of component (C) is at least one selected from the group consisting of triethanolamine, aminomethylpropanol, tromethamine, tetrahydroxypropylethylenediamine, diisopropanolamine, and PEG-15 cocamine.
- the hand sanitizing composition of the present invention is characterized by being gentle on the fingers and having an excellent feeling of use despite its high alcohol content.
- the liquid hand sanitizing composition has little resistance when rubbed into the hands and fingers, is easy to rub in, and after rubbing in, it can impart a moist feeling to the hands and fingers with little squeakiness.
- the viscous hand disinfectant composition can spread the gel-like liquid over the entire object to be disinfected, such as the fingers, without the problem of overflowing or dripping from the fingers unlike the liquid hand disinfectant composition. Although it is viscous at the time of ejection, it becomes like a liquid when rubbed into the fingers, and it is easy to rub in with little resistance.
- the rub-in hand sanitizing composition of the present invention includes a liquid hand sanitizing composition (liquid type) and a viscous hand sanitizing composition (gel type).
- the liquid hand sanitizing composition contains the following (A) to (D) and has a pH in the range of 5.5 to 7.5: (A) a lower alcohol present in an amount of 50-90% by volume of the total composition; (B) at least one polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol present in an amount of 0.01 to 1.0% by weight of the total composition; (C) isopropyl myristate and glycerin fatty acid ester present in an amount of 0.01 to 0.12% each by weight of the total composition; and (D) water present in an amount to bring the total composition to 100% by weight.
- A a lower alcohol present in an amount of 50-90% by volume of the total composition
- B at least one polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol present in an amount of 0.01 to 1.0% by weight of the total composition
- C isopropyl
- Lower alcohol used in the present invention is a lower hydrocarbon chain alcohol having a bactericidal action. Specific examples include ethanol, n-propyl alcohol and isopropyl alcohol. Ethanol is preferred. These lower alcohols may be used singly or in combination of two.
- the lower alcohol can be blended in the range of 50 to 90% by volume in the hand sanitizing composition (100% by volume) of the present invention.
- the lower limit is not particularly limited to 50% by volume, it is preferably 60% by volume or more, more preferably 70% by volume or more, from the viewpoint of sterilizing power.
- the upper limit is not particularly limited to 90% by volume, it is preferably 85% by volume or less, more preferably 80% by volume or less.
- a specific range is, for example, 50 to 90% by volume, preferably 70 to 85% by volume, and particularly preferably 75 to 82% by volume. can.
- the specific range is, for example, 50 to 90% by volume, preferably 70 to 85% by volume, particularly preferably 75 to 82% by volume. can be mentioned.
- the polyhydric alcohol used in the present invention is at least one selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol. These polyhydric alcohols may be used singly or in any combination of two or more. Glycerin is preferred.
- the polyhydric alcohol can be blended in the total amount of the polyhydric alcohol in the range of 0.01 to 1.0% by mass in the hand sanitizing composition (100% by mass) of the present invention.
- the polyhydric alcohol in this range, there is little resistance when rubbing into the fingers, and it is easy to rub in, and after rubbing in, there is no creaking or sliminess, and fingers can be given a moist feeling.
- a disinfecting composition can be obtained.
- the lower limit is not particularly limited to 0.01% by mass, it is preferably 0.05% by mass or more, more preferably 0.1% by mass or more.
- the upper limit is not particularly limited to 1.0% by mass, but is preferably 0.8% by mass or less, more preferably 0.5% by mass or less.
- a preferable range is 0.05 to 0.8% by mass, more preferably 0.1 to 0.5% by mass.
- the hand sanitizing composition of the present invention is characterized by containing isopropyl myristate and glycerin fatty acid ester in a specific ratio.
- Isopropyl myristate is a fatty acid ester formed by an ester bond between the carboxy group of myristic acid and the hydroxyl group of isopropyl alcohol.
- the hand sanitizing composition (100% by mass) of the present invention can contain 0.01 to 0.12% by mass of isopropyl myristate.
- the lower limit is not particularly limited to 0.01% by mass, it is preferably 0.02% by mass or more, more preferably 0.03% by mass or more.
- the upper limit is not particularly limited to 0.12% by mass, but is preferably 0.10% by mass or less, more preferably 0.08% by mass or less. Specifically, a preferable range is 0.02 to 0.1% by mass, more preferably 0.03 to 0.08% by mass.
- Glycerin fatty acid ester is monoacylglycerol or diacylglycerol in which a fatty acid is ester-bonded to one or two of the three hydroxyl groups of glycerin.
- Monoacylglycerol is preferably used in the present invention.
- Fatty acids that bind to hydroxyl groups of glycerin include saturated fatty acids having 6 to 16 carbon atoms. Saturated fatty acids having 8 to 14 carbon atoms are preferred, saturated fatty acids having 8 to 12 carbon atoms are more preferred, and saturated fatty acids having 10 carbon atoms are particularly preferred.
- the hand sanitizing composition (100% by mass) of the present invention can contain 0.01 to 0.12% by mass of glycerin fatty acid ester.
- the lower limit is not particularly limited, with a limit of 0.01% by mass.
- the upper limit is not particularly limited to 0.12% by mass, but is preferably 0.10% by mass or less, more preferably 0.06% by mass or less. Specifically, a preferable range is 0.01 to 0.1% by mass, more preferably 0.01 to 0.06% by mass.
- the ratio of isopropyl myristate and glycerin fatty acid ester of component (C) is not limited, it can be preferably selected from 8 to 1200 parts by mass of glycerin fatty acid ester per 100 parts by mass of isopropyl myristate. It is preferably 10 to 100 parts by mass.
- the hand sanitizing composition of the present invention is an aqueous composition containing water as a solvent.
- the hand disinfection composition of the present invention has antimicrobial action (antiviral action, antibacterial action) and is used for disinfecting hands and fingers. Therefore, water used as the solvent is required not to impair these effects (antimicrobial properties).
- purified water can be used.
- purified water refers to water that has been purified by adding the necessary water treatment operations to raw water (raw water and groundwater), preferably as tap water. Those satisfying the above conditions can be mentioned.
- tap water, sterilized water, RO water, ion-exchanged water, sterilized water, distilled water, purified water, alkaline ionized water, deep sea water and the like can be mentioned. Purified water is preferred.
- Water can be blended in an amount that makes the total amount of the hand sanitizing composition of the present invention 100% by mass.
- (E) pH of hand sanitizing composition, pH adjuster The hand sanitizing composition of the present invention is characterized by being adjusted to pH 5.5 to 7.5.
- a preferable range of pH is pH 6.0 to 7.2, more preferably pH 6.2 to 7.0, since it is gentle on the skin of fingers and the feeling of use.
- a pH adjuster can be used as necessary to adjust the pH of the hand sanitizing composition of the present invention to the above range. However, if the pH can be adjusted within the above range by blending the above-described components (A) to (D), it is not necessary to blend a pH adjuster.
- the pH adjuster an acid, a base, an amine and/or a salt thereof can be appropriately selected and used according to the pH of the hand sanitizing composition prepared by blending components (A) to (D). can be done.
- acids such as inorganic acids such as hydrochloric acid, sulfuric acid, and nitric acid; organic acids such as lactic acid, citric acid, malic acid, and phosphoric acid; bases such as sodium hydroxide, potassium hydroxide, and ammonium hydroxide.
- inorganic bases amines can be exemplified by triethanolamine, aminomethylpropanol, tromethamine, tetrahydroxypropylethylenediamine, diisopropanolamine, and PEG-15 cocamine.
- triethanolamine, tetrahydroxypropylethylenediamine, diisopropanolamine, di(2-ethylhexyl)amine, and PEG-15 cocamine are preferably used in view of their high affinity to relatively high-concentration alcohol-containing aqueous solutions.
- the hand disinfection composition of the present invention can contain other components in addition to the antimicrobial action, as long as the effects and liquid properties of the present invention are not impaired.
- examples of such other ingredients include perfumes, pigments (coloring agents), antioxidants, blood circulation promoters, and the like.
- the hand disinfectant composition of the present invention contains a high concentration of lower alcohol components that act as disinfectant substances (antiviral substances, antibacterial substances), so it is necessary to add an antibacterial agent separately. no.
- the addition of the antibacterial agent is not restricted.
- Antibacterial agents that can be incorporated include biguanide antibacterial agents such as chlorhexidine gluconate and olanexidine gluconate; quaternary ammonium salts such as benzalkonium chloride and benzethonium chloride; dialkylaminoethylglycine, etc. glycine-based amphoteric surfactants; and natural antibacterial agents such as essential oils, plant extracts, polyphenols, catechins, chitin, chitosan, hinokitiol, lysozyme, amino acids, and dipeptides.
- biguanide antibacterial agents such as chlorhexidine gluconate and olanexidine gluconate
- quaternary ammonium salts such as benzalkonium chloride and benzethonium chloride
- dialkylaminoethylglycine, etc. glycine-based amphoteric surfactants such as essential oils, plant extracts, polyphenols, catechins
- the hand disinfectant composition of the present invention has less resistance when rubbed into the fingers due to the combination of the above-described components (A) to (D), and is easy to rub in, and after rubbing in, there is no creaking or sliminess. Furthermore, a hand sanitizing composition capable of imparting a moist feeling to the hands and fingers can be obtained. For this reason, there is no need to separately blend other ingredients called emollients or moisturizing agents. Rather, it is preferable not to mix the components (A) to (D) because the balance is lost.
- the term “emollient” broadly refers to materials that can maintain or improve skin moisture levels, compliance, or appearance upon repeated application to the skin, such as the fingers.
- emollients include allantoin, amino acids (e.g. glycine, alanine, etc.), sugar alcohols (e.g. sorbitol, erythritol, xylitol, maltitol, lactitol, mannitol), diisobutyl adipate, lanolin, vinyl alcohol, polyvinylpyrrolidone, polyols ( glyceryl oleate, or sorbitol), polyethylene glycol, cocoglucoside, fatty alcohols (such as cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol, alkoxylated cetyl alcohol, or palmityl alcohol), and ceteareth 20, despanthenol, Squalene, glyceryl triisooctanoate, PEG-7 glyceryl cocoate, ceramide, vegetable oil (such as
- the hand sanitizing composition of the present invention does not contain ingredients that are highly irritating to the skin or that cause rough hands.
- examples of such components include preservatives, aldehyde-based disinfectants such as glutaraldehyde, chlorine-based disinfectants such as sodium hypochlorite, iodine-based disinfectants such as povidone-iodine, and phenol-based disinfectants such as cresol. can.
- the liquid hand disinfectant composition is filled in a container with a hinge cap that can be discharged as a liquid agent, a spray type container that can be discharged as droplets, etc., and sprayed on the fingers. It can be used by discharging.
- the spray-type container include, without limitation, a portable spray-type container, a hand-push type spray pump, or a container with a dispenser.
- a non-gas discharge container is preferred.
- the term "liquid state” means a state in which a normal spray type container (non-gas type container) can be filled and sprayed and discharged, and as long as this is not particularly limited.
- the discharge container containing the liquid hand sanitizing composition is not limited, for example, in the case of a spray type container, 1 to 3 mL of atomized liquid (capacity converted to liquid volume) can be discharged per push. can be a thing
- the viscous hand sanitizing composition contains the following (A) to (F) and has a pH in the range of 5.5 to 7.5.
- A a lower alcohol present in an amount of 50-90% by volume of the total composition
- B at least one polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, and propylene glycol present in an amount of 0.01 to 1.0% by weight of the total composition
- E a pH adjuster
- F at least one acrylic polymer selected from the group consisting of carboxyvinyl polymer and acrylic acid/methacrylate alkyl copolymer; water to
- (A) to (E), including the mixing ratio are as described in the liquid rubbing-type hand disinfectant composition described above, and the description described above can be used here.
- Acrylic acid-based polymer The acrylic acid-based polymer used in the present invention is at least one selected from the group consisting of carboxyvinyl polymer and acrylic acid/alkyl methacrylate copolymer. These acrylic acid-based polymers may be used singly or in any combination of two or more. Carboxyvinyl polymer is preferred.
- Carboxyvinyl polymer is a water-soluble acrylic acid polymer in which allyl sucrose, pentaerythritol, or the like is crosslinked with acrylic acid as the main chain.
- a carboxyvinyl polymer having a carboxyl group content of preferably 57.7 to 63.4%, more preferably 58 to 63% is preferably used.
- the carboxyvinyl polymer may conform to the Pharmaceutical Excipients Standards 2018 (Pharmaceutical Evaluation Division, Pharmaceutical Safety and Environmental Health Bureau, Ministry of Health, Labor and Welfare, Japan) (hereinafter also referred to as "medicinal additives regulation 2018").
- the blending ratio in the hand sanitizing composition (100% by mass) of the present invention can be appropriately adjusted according to the viscosity of the carboxyvinyl polymer used.
- a carboxyvinyl polymer having a viscosity of 1,500 to 10,000 mPa s the .8% by mass
- a carboxyvinyl polymer having a viscosity of 10000 to 30000 mPa s 0.01 to 1.0% by mass, preferably 0.05 to 0.8% by mass, more preferably is in the range of 0.1 to 0.7% by mass
- the amount is 0.01 to 1.0% by mass, preferably 0.05 to 0.05% by mass.
- a range of 7% by mass, more preferably 0.1 to 0.6% by mass can be exemplified.
- the carboxyvinyl polymer is used in combination with an inorganic base or an amine among the (E) pH adjusters described above.
- amines are preferred. More preferably, triethanolamine, aminomethylpropanol, tetrahydroxypropylethylenediamine, diisopropanolamine, and PEG-15 cocamine are used because of their high affinity for alcohol-containing aqueous solutions of relatively high concentration. Triethanolamine is particularly preferred.
- the acrylic acid-alkyl methacrylate copolymer is a copolymer obtained by introducing an alkyl methacrylate group having 10 to 30 carbon atoms into polyacrylic acid. Also known as (acrylates/alkyl acrylate (C10-30)) chloropolymer.
- the acrylic acid/methacrylate alkyl copolymer conforms to the Standards for Quasi-Drug Ingredients 2021 (Pharmaceutical Evaluation Division, Pharmaceutical Safety and Environmental Health Bureau, Ministry of Health, Labor and Welfare, Japan) (hereinafter also referred to as "Outer Regulation 2021"). I wish I had.
- the viscosity is 25000 to 65000 mPa ⁇ s, preferably 45000 to 65000 mPa ⁇ s can be exemplified.
- the mixing ratio in the hand sanitizing composition (100% by mass) of the present invention can be appropriately adjusted according to the viscosity of the alkyl acrylate/methacrylate copolymer used.
- an acrylic acid/methacrylate alkyl copolymer having a viscosity of 25000 to 45000 mPa ⁇ s it is 0.01 to 1.0% by mass, preferably 0.05 to 0.8% by mass, and more preferably in the range of 0.1 to 0.7% by mass; when using the alkyl acrylic acid/methacrylate copolymer having a viscosity of 45,000 to 65,000 mPa ⁇ s, 0.01 to 1.0% by mass, preferably 0 0.05 to 0.7% by mass, more preferably 0.1 to 0.6% by mass.
- an acrylic acid/methacrylate alkyl copolymer is also used in combination with an inorganic base or an amine among the aforementioned (E) pH adjusters, like the carboxyvinyl polymer.
- the (E) pH adjuster used in combination with the carboxyvinyl polymer amines are preferred.
- triethanolamine aminomethylpropanol, tetrahydroxypropylethylenediamine, diisopropanolamine, and PEG-15 cocamine are used because of their high affinity for alcohol-containing aqueous solutions of relatively high concentration. Triethanolamine is particularly preferred.
- the viscous hand disinfectant composition like the liquid hand disinfectant composition described above, does not impair the effects of the present invention and the viscous (gel) properties in addition to the antimicrobial action.
- Other ingredients can be included, up to the limit of As with the liquid hand sanitizing composition, it is preferable not to include ingredients that impair the effects of the present invention, such as ingredients that are highly irritating to the skin and ingredients that cause rough skin.
- the viscous hand disinfectant composition of the present invention has less resistance when rubbed into the fingers due to the combination of the above-described components (A) to (F), and is easy to rub into. It is possible to obtain a hand sanitizing composition which is free from sliminess and which can impart moist feeling to the fingers.
- liquid hand sanitizing composition there is no need to separately add other ingredients called emollients or moisturizing agents. Rather, it is preferable not to blend the components (A) to (F) because the blending balance of the components (A) to (F) is lost.
- the viscous hand sanitizing composition can be used by filling a container that can discharge the hand sanitizing composition as a gel-like liquid and discharging it onto the fingers.
- a container that can discharge the hand sanitizing composition as a gel-like liquid and discharging it onto the fingers.
- the container include, without limitation, a tube container capable of discharging the gel, a push-type container (including a container with a hinge cap), or a container with a hand-pump or a dispenser.
- the discharge container containing the viscous hand disinfectant composition is not limited, but it is possible to discharge 1 to 2 mL of gel-like liquid (capacity in terms of liquid volume) per discharge. can.
- the liquid and viscous hand sanitizing composition of the present invention has an alcohol content of 50% by volume or more with a limit of 90% by volume, preferably It has 60% by volume or more.
- enveloped viruses such as coronaviruses, influenza viruses, herpes viruses, and hepatitis C and B viruses (enveloped virus ) exerts antiviral activity against Therefore, the hand disinfectant composition of the present invention can be suitably used for disinfecting skin including fingers (antibacterial treatment, antiviral treatment).
- the hand sanitizing composition of the present invention is characterized by being gentle on the fingers and having an excellent feeling of use despite its high alcohol content.
- the liquid hand sanitizing composition has little resistance when rubbed into the hands and fingers, is easy to rub in, and after rubbing in, it can impart a moist feeling to the hands and fingers with little squeakiness.
- the viscous hand disinfectant composition can spread the gel-like liquid over the entire object to be disinfected, such as the fingers, without the problem of overflowing or dripping from the fingers unlike the liquid hand disinfectant composition. Although it is viscous at the time of ejection, it becomes like a liquid when rubbed into the fingers, and it is easy to rub in with little resistance.
- the liquid hand sanitizing composition of the present invention is adjusted to a desired pH of 5.5 to 7.5 by mixing (A) to (D) described above and other ingredients as necessary. It can be manufactured by In addition, the viscous hand disinfectant composition of the present invention is adjusted to a desired pH of 5.5 to 7.5 by mixing (A) to (F) described above and other ingredients as necessary. It can be manufactured by adjusting.
- the thus-prepared hand sanitizing composition of the present invention can be prepared as an actual product for actual use by accommodating it in the above-described discharge container according to its properties. It can also be housed in a replacement container.
- the hand disinfectant composition of the present invention can be used as a skin disinfectant, particularly a hand disinfectant, based on its antimicrobial action as described above.
- “disinfect” means to prevent the growth of harmful microorganisms, kill them, or reduce the number of microorganisms. In this sense, “disinfection” is used in the sense of including “antibacterial (antiviral)” and “sterilization (virus inactivation)”. Harmful microorganisms that are particularly targeted in the present invention include, as described above, coronaviruses, influenza viruses, herpes viruses, and enveloped viruses such as hepatitis C virus and hepatitis B virus. Thus, it can be effectively used to prevent infections caused by these viruses.
- the terms “include” and “contain” include the meanings of "consisting of” and “consisting essentially of”.
- Ethanol Japanese Pharmacopoeia
- Isopropyl alcohol 99% or more N-propyl alcohol: 99% or more
- Glycerin Concentrated glycerin (glycerin concentration ⁇ 98%) 1,3-butylene glycol: 99% or more Propylene glycol: 99% or more Isopropyl myristate: NIKKOL IPM-EX (manufactured by Nikko Chemicals Co., Ltd.)
- Glycerin fatty acid ester Sunsoft No.760-C (glyceryl caprate, medium-chain fatty acid monoglyceride: manufactured by Taiyo Kagaku Co., Ltd.)
- Carboxy vinyl polymer AQUPEC HV-801EG ([Manufacturer information] 0.2% aqueous solution viscosity: 2,500-6,400 mPa s, 0.5% aqueous solution viscosity: 5,400-11,
- the feeling of use (during and after rubbing) when each test sample 1-1 to 1-30 was rubbed into the fingers was evaluated by 10 panelists by the following method. All of these 10 panelists are researchers who have received specialized training in sensory evaluation, and who have passed the in-house sensory evaluation test.
- the 10 panelists discussed the criteria for each item in the evaluation table described in Table 1 in advance, and after confirming that everyone was in a state where they could be evaluated according to the same criteria, the main test was conducted. Carried out.
- the viscous disinfecting composition obtained by blending ethanol with a carboxyvinyl polymer as a thickener and a polyhydric alcohol is more effective than ethanol alone (see Table 2: Test sample 1-1). Although a little moisturizing was obtained, it was difficult to rub it in due to a feeling of resistance just before it dried, and a slight squeaky feeling was felt after rubbing in (Test Samples 2-1 to 2-5). When the amount of the polyhydric alcohol compounded was as low as 0.5% by mass or less, the feeling of resistance during rubbing was high and rubbing tended to be difficult (test samples 2-1 to 2-1).
- the viscous disinfecting composition obtained by blending ethanol with carboxyvinyl polymer as a thickening agent and polyhydric alcohol further contained isopropyl myristate and glycerin fatty acid ester in an amount of 0.01 to 0.01, respectively.
- a hand sanitizing composition that is easily rubbed in without resistance when rubbed in, is free from squeaky or slimy feeling after being rubbed in, and is moist and moist, and has a good feeling of use by combining and blending at a ratio of 0.12% by mass. was obtained (test samples 2-8 to 10, 2-12 to 13, 2-15 to 16).
- a rub-in type hand sanitizing composition with a good feeling of use can also be obtained by using a chloropolymer (acrylates/alkyl acrylate (C10-30)), which is also an acrylic acid-based copolymer. (Table 7: test samples 2-31 to 32, Table 8: test samples 2-33 to 38).
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Abstract
Description
例えば、特許文献1には、使いやすい適度な粘稠性を有し、使用後の殺菌効力の持続性に優れ、手肌が滑らか(すべすべした感触)である実用的価値の高い粘稠状殺菌剤組成物として、エタノール50~95容量%、カルボキシビニルポリマー0.1~3.0重量%、アルカノールアミン0.01~2.0重量%、及び水5~50容量%からなる、pH5~8の粘稠状殺菌剤組成物が記載されており、さらに第4級アンモニウム塩または脂肪酸エステルを配合することができることが記載されている。しかし、脂肪酸エステルとしてグリセリン脂肪酸エステルとミリスチン酸イソプロピルとを特定の割合で併用することは記載も示唆もされていない。
(I)液状擦り込み式手指消毒組成物
(I-1)下記成分を含有する、pH5.5~7.5の擦り込み式手指消毒組成物:
(A)低級アルコール:50~90容量%、
(B)グリセリン、1,3-ブチレングリコール、及びプロピレングリコールからなる群より選択される少なくとも1種の多価アルコール:0.01~1.0質量%、
(C)ミリスチン酸イソプロピル及びグリセリン脂肪酸エステル:各々0.01~0.12質量%、及び
(D)水。
(I-2)前記低級アルコールが、エタノール、n-プロピルアルコール、及びイソプロピルアルコールから選択される少なくとも1種、好ましくはエタノールである、(I-1)に記載する擦り込み式手指消毒組成物。
(I-3)(C)成分のミリスチン酸イソプロピルとグリセリン脂肪酸エステルとの割合が、ミリスチン酸イソプロピル100質量部に対してグリセリン脂肪酸エステル8~1200質量部である、(I-1)又は(I-2)に記載する擦り込み式手指消毒組成物。
(I-4)前記(C)成分のグリセリン脂肪酸エステルが、グリセリンの一つのヒドロキシ基に炭素数6~16の飽和又は不飽和脂肪酸がエステル結合したものである、(I-1)~(I-3)のいずれかに記載する擦り込み式手指消毒組成物。
(I-5)前記(C)成分のグリセリン脂肪酸エステルが、ラウリン酸脂肪酸エステル以外のグリセリン脂肪酸エステルであること、好ましくはカプリン酸脂肪酸エステルである、(I-1)~(I-4)のいずれかに記載する擦り込み式手指消毒組成物。
(I-6)液状の手指消毒組成物である、(I-1)~(I-5)のいずれかに記載する擦り込み式手指消毒組成物。
(II-1)下記成分を含有する、pH5.5~7.5の擦り込み式手指消毒組成物:
(A)低級アルコール:50~90容量%、
(B)グリセリン、1,3-ブチレングリコール、及びプロピレングリコールからなる群より選択される少なくとも1種の多価アルコール:0.01~1.0質量%、
(C)ミリスチン酸イソプロピル及びグリセリン脂肪酸エステル:各々0.01~0.12質量%、
(E)カルボキシビニルポリマー、及びアクリル酸・メタクリル酸アルキル共重合体からなる群より選択される少なくとも1種のアクリル酸系重合体、
(F)pH調整剤、及び
(D)水。
(II-2)前記低級アルコールが、エタノール、n-プロピルアルコール、及びイソプロピルアルコールから選択される少なくとも1種、好ましくはエタノールである、(II-1)に記載する擦り込み式手指消毒組成物。
(II-3)(C)成分のミリスチン酸イソプロピルとグリセリン脂肪酸エステルとの割合が、ミリスチン酸イソプロピル100質量部に対してグリセリン脂肪酸エステル8~1200質量部、好ましくは10~100質量部である、(II-1)又は(II-2)に記載する擦り込み式手指消毒組成物。
(II-4)前記(C)成分のグリセリン脂肪酸エステルが、グリセリンの一つのヒドロキシ基に炭素数6~16の飽和又は不飽和脂肪酸がエステル結合したものである、(II-1)~(II-3)のいずれかに記載する擦り込み式手指消毒組成物。
(II-5)前記(C)成分のグリセリン脂肪酸エステルが、ラウリン酸脂肪酸エステル以外のグリセリン脂肪酸エステルであること、好ましくはカプリン酸脂肪酸エステルである、(II-1)~(II-4)のいずれかに記載する擦り込み式手指消毒組成物。
(II-6)前記(C)成分のカルボキシビニルポリマーが下記の特性を有するものである、(II-1)~(II-5)のいずれかに記載する擦り込み式手指消毒組成物:
0.2w/v%水溶液(pH7.0-7.5、20±1℃)を、ブルックフィールド型回転粘度計(2号又は4号、12回転)を用いて測定した場合の粘度が、1500~50000mPa・s、好ましくは1500~30000mPa・s、より好ましくは1500~7500mPa・s。
(II-7)前記(C)成分のアクリル酸・メタクリル酸アルキル共重合体が下記の特性を有する(アクリレーツ/アクリル酸アルキル(C10-30))クロスポリマーである、(II-1)~(II-6)のいずれかに記載する擦り込み式手指消毒組成物:
0.5w/v%水溶液(pH7.0-7.5、20±1℃)を、ブルックフィールド型回転粘度計(2号又は4号、12回転)を用いて測定した場合の粘度が、25000~65000mPa・s、好ましくは45000~65000mPa・s。
(II-8)前記(C)成分のpH調整剤が、トリエタノールアミン、アミノメチルプロパノール、トロメタミン、テトラヒドロキシプロピルエチレンジアミン、ジイソプロパノールアミン、及びPEG-15コカミンからなる群より選択される少なくとも1種の水溶性又はアルコール可溶性のアミン化合物である、(II-1)~(II-7)のいずれかに記載する擦り込み式手指消毒組成物。
(II-9)粘稠状の手指消毒組成物である、(II-1)~(II-8)のいずれかに記載する擦り込み式手指消毒組成物。
液状の手指消毒組成物は、下記の(A)~(D)を含有し、pHが5.5~7.5の範囲にあることを特徴とする:
(A)全組成物あたり50~90容量%の量で存在する低級アルコール、
(B)全組成物あたり0.01~1.0質量%の量で存在するグリセリン、1,3-ブチレングリコール、及びプロピレングリコールからなる群より選択される少なくとも1種の多価アルコール、
(C)全組成物あたり各々0.01~0.12質量%の量で存在するミリスチン酸イソプロピル及びグリセリン脂肪酸エステル、並びに
(D)全組成物を100質量%とする量で存在する水。
(A)低級アルコール
本発明で用いられる低級アルコールは、殺菌作用を有する低級炭化水素鎖アルコールである。具体的には、エタノール、n-プロピルアルコール及びイソプロピルアルコールを挙げることができる。好ましくはエタノールである。これらの低級アルコールは1種単独で使用してもよいし、また2種を組み合わせて使用することもできる。
本発明で用いられる多価アルコールは、グリセリン、1,3-ブチレングリコール、及びプロピレングリコールからなる群より選択される少なくとも1種である。これらの多価アルコールは1種単独で使用されてもよいし、また2種以上を任意に組み合わせて使用することもできる。好ましくはグリセリンである。
本発明の手指消毒組成物は、ミリスチン酸イソプロピルとグリセリン脂肪酸エステルを特定の割合で含有することを特徴とする。
本発明の手指消毒組成物(100質量%)には、グリセリン脂肪酸エステルを0.01~0.12質量%の範囲で配合することができる。前述する(A)低級アルコール、(B)多価アルコール、及び(C)ミリスチン酸イソプロピルに加えて、グリセリン脂肪酸エステルをこの範囲で含有することで、手指に擦り込む際の抵抗が少なく擦り込みやすく、また擦り込んだ後は、きしみやぬるつきがなく、また手指にうるおい感を付与することができる手指消毒組成物を得ることができる。下限値は、0.01質量%を限度として特に制限されない。また上限値は、0.12質量%を限度として特に制限されないものの、好ましくは0.10質量%以下、より好ましくは0.06質量%以下である。具体的には、好適な範囲として、0.01~0.1質量%、より好ましくは0.01~0.06質量%の範囲を例示することができる。
本発明の手指消毒組成物は、水を溶媒として含有する水性組成物である。
本発明の手指消毒組成物はpH5.5~7.5に調整されていることを特徴とする。 pHの好適な範囲としては、使用感及び手指の皮膚に優しいことから、pH6.0~7.2、より好ましくはpH6.2~7.0の範囲を挙げることができる。
本発明の手指消毒組成物は、抗微生物作用に加えて、本発明の効果及び液状(リキッド)の性状を損なわないことを限度として、他の成分を含有することができる。かかる他の成分としては、香料、顔料(着色料)、抗酸化剤、血行促進剤などを例示することができる。
ちなみに、エモリエント剤としては、アラントイン、アミノ酸(例えばグリシン、アラニンなど)、糖アルコール(例えばソルビトール、エリスリトール、キシリトール、マルチトール、ラクチトール、マンニトール)、アジピン酸ジイソブチル、ラノリン、ビニルアルコール、ポリビニルピロリドン、ポリオール(例えばグリセリルオレエート、またはソルビトール)、ポリエチレングリコール、ココグルコシド、脂肪アルコール(例えばセチルアルコール、ステアリルアルコール、ラウリルアルコール、ミリスチルアルコール、アルコキシル化セチルアルコール、またはパルミチルアルコール)、及びセテアレス20、デスクパンテノール、スクワレン、トリイソオクタン酸グリセリン、ヤシ油脂肪酸PEG-7グリセリル、セラミド、植物油(例えばホホバ種子油、シュガースクワラン、オリブ油など)、ヒアルロン酸ナトリウム、2-ピロリドン-5-カルボン酸ナトリウム、尿素、乳酸ナトリウム、2-メタクリロイルオキシエチルホスホリルコリン・メタクリル酸ブチル共重合体液、カミツレエキス等の植物エキス等を例示することができる。
粘稠状の手指消毒組成物は、下記の(A)~(F)を含有し、pHが5.5~7.5の範囲にあることを特徴とする:
(A)全組成物あたり50~90容量%の量で存在する低級アルコール、
(B)全組成物あたり0.01~1.0質量%の量で存在するグリセリン、1,3-ブチレングリコール、及びプロピレングリコールからなる群より選択される少なくとも1種の多価アルコール、
(C)全組成物あたり各々0.01~0.12質量%の量で存在するミリスチン酸イソプロピル及びグリセリン脂肪酸エステル、
(E)pH調整剤、
(F)カルボキシビニルポリマー、及びアクリル酸・メタクリル酸アルキル共重合体からなる群より選択される少なくとも1種のアクリル酸系重合体、並びに
(D)全組成物を100質量%とする量で存在する水。
本発明で用いられるアクリル酸系重合体は、カルボキシビニルポリマー、及びアクリル酸・メタクリル酸アルキル共重合体からなる群より選択される少なくとも1種である。これらのアクリル酸系重合体は、1種単独で使用されてもよいし、また2種以上を任意に組み合わせて使用することもできる。好ましくはカルボキシビニルポリマーである。
カルボキシビニルポリマーは、医薬品添加物規格2018(日本国厚生労働省医薬・生活衛生局医薬品審査管理課)(以下、「薬添規2018」とも称する)に適合したものであればよい。具体的には、乾燥したカルボキシビニルポリマー0.4gを200mlの水に分散させた後、水酸化ナトリウム水溶液でpH7.0~7.5に調整した試料溶液(20±0.1℃)を、10時間静置して気泡を除去した後、ブルックフィールド型回転粘度計で測定した粘度が、1500mPa・s(2号、12回転、30秒)~50000mPa・s(4号、12回転、安定)であるカルボキシビニルポリマーを用いることができる。好ましくは、粘度が1500~30000mPa・s、より好ましくは1500~7,500mPa・sのカルボキシビニルポリマーである。
例えば、前記粘度が1500~10000mPa・sにあるカルボキシビニルポリマーを用いる場合は、0.01~1.0質量%、好ましくは0.05~0.9質量%、より好ましくは0.1~0.8質量%の範囲を;前記粘度が10000~30000mPa・sにあるカルボキシビニルポリマーを用いる場合は、0.01~1.0質量%、好ましくは0.05~0.8質量%、より好ましくは0.1~0.7質量%の範囲を;前記粘度が30000~50000mPa・sにあるカルボキシビニルポリマーを用いる場合は、0.01~1.0質量%、好ましくは0.05~0.7質量%、より好ましくは0.1~0.6質量%の範囲を例示することができる。
アクリル酸・メタクリル酸アルキル共重合体は、医薬品部外品原料規格2021(日本国厚生労働省医薬・生活衛生局医薬品審査管理課)(以下、「外原規2021」とも称する)に適合したものであればよい。例えば、0.5w/v%水溶液(pH7.0-7.5、20±1℃)をブルックフィールド型回転粘度計(2号又は4号、12回転)を用いて測定した場合の粘度が、25000~65000mPa・s、好ましくは45000~65000mPa・sであるものを例示することができる。
例えば、粘度が25000~45000mPa・sにあるアクリル酸・メタクリル酸アルキル共重合体を用いる場合は、0.01~1.0質量%、好ましくは0.05~0.8質量%、より好ましくは0.1~0.7質量%の範囲を;前記粘度が45000~65000mPa・sにあるアクリル酸・メタクリル酸アルキル共重合体を用いる場合は、0.01~1.0質量%、好ましくは0.05~0.7質量%、より好ましくは0.1~0.6質量%の範囲を例示することができる。
粘稠状の手指消毒組成物も、前述する液状手指消毒組成物と同様に、抗微生物作用に加えて、本発明の効果及び粘稠状(ジェル)の性状を損なわないことを限度として、他の成分を含有することができる。前記液状手指消毒組成物と同様、皮膚への刺激性が強い成分や肌荒れの原因となる成分など、本発明の効果を損なう成分は配合しないことが好ましい。また、本発明の粘稠状の手指消毒組成物は、前述する(A)~(F)成分の配合により、手指に擦り込む際の抵抗が少なく擦り込みやすく、また擦り込んだ後は、きしみやぬるつきがなく、また手指にうるおい感を付与することができる手指消毒組成物を得ることができる。このため、前記液状手指消毒組成物と同様、別途、エモリエント剤または保湿剤と称される他の成分を配合する必要はない。むしろ、(A)~(F)成分の配合のバランスが崩れるため配合しないことが好ましい。
本発明の液状手指消毒組成物は、前述する(A)~(D)、並びに必要に応じてその他の成分を混合して、pHを5.5~7.5の所望のpHに調整することで製造することができる。また本発明の粘稠状手指消毒組成物は、前述する(A)~(F)、並びに必要に応じてその他の成分を混合して、pHを5.5~7.5の所望のpHに調整することで製造することができる。斯くして調製される本発明の手指消毒組成物は、性状に応じた前述する吐出容器に収容することで、実際に使用される実製品として調整することができる。また入れ替え用容器に収容することもできる。
本発明の手指消毒組成物は、前述するその抗微生物作用に基づいて、皮膚消毒剤、特に手指の消毒剤として使用することができる。ここで「消毒」とは、有害な微生物の生育を阻止して死滅させ、または微生物の数を減少させることを意味する。この意味で「消毒」は、「抗菌(抗ウイルス)」や「殺菌(ウイルス不活化)」を包含する意味で用いられる。特に本発明で対象とする有害な微生物には、前述するように、コロナウイルス、インフルエンザウイルス、ヘルペスウイルス、及びC型肝炎ウイルスやB型肝炎ウイルス等のエンベロープウイルスが含まれる。斯くしてこれらウイルスによる感染症の予防に効果的に使用することができる。
以上、本明細書において、「含む」及び「含有する」の用語には、「からなる」及び「から実質的になる」という意味が含まれる。
エタノール:日本薬局方エタノール95v/v%
イソプロピルアルコール:99%以上
n-プロピルアルコール:99%以上
グリセリン:濃グリセリン(グリセリン濃度≧98%)
1,3-ブチレングリコール:99%以上
プロピレングリコール:99%以上
ミリスチン酸イソプロピル:NIKKOL IPM-EX(日光ケミカルズ(株)製)
グリセリン脂肪酸エステル:サンソフトNo.760-C(カプリン酸グリセリル、中鎖脂肪酸モノグリセリド:太陽化学(株)製)
カルボキシビニルポリマー:AQUPEC HV-801EG([メーカー情報」0.2%水溶液粘度:2,500-6,400mPa・s、0.5%水溶液粘度:5,400-11,400mPa・s、pH:2.7~3.3)(住友精化(株)製)
(アクリレーツ/アクリル酸アルキル(C10-30))クロルポリマー:Carbopol SC-500 Polymer(Lubrizol製)
表2及び3に記載する各成分を配合して、液状の擦り込み式手指消毒組成物(被験試料1-1~1-30、pH6.5~7)を調製した。これらを各々1回吐出量が1mlに設定された噴霧式容器に入れた。
1.各被験試料を擦り込む前に、毎回、5%カリ石けんと流水(水道水)で両手をよく洗浄し、乾いたペーパータオルで水分を軽く拭きとった。
2.次いで噴霧式容器に入れた被験試料を、手に1回吐出(1ml)して、両手を擦り合わせて、液が乾燥するまで、手指全体に擦り込んだ。
3.擦り込んだ後、表1に記載する判定表に従って、各パネル毎、使用感(擦り込み中、擦り込み後)を評価した。
4.各評価項目について、各パネルの評価得点の平均値を算出し、下記の基準に従って評価を行った。
○:平均値が2.0点以上
△:平均値が1.0~2.0点未満
×:平均値が1.0点未満
また、表3に示すように、エタノール濃度を50容量%または90容量%にした場合、及び低級アルコールとしてイソプロピルアルコール又はn-プロピルアルコールを用いた場合も同じ傾向が認められた(被験試料1-15~1-30)。
表4~8に記載する各成分を配合して、粘稠状の擦り込み式手指消毒組成物(被験試料2-1~2-47:pH6.5~7)を調製した。これらを各々1回吐出量が1mlに設定された吐出容器に入れた。
また、表8に示すように、エタノール濃度を50容量%または90容量%にした場合、及び低級アルコールとしてイソプロピルアルコール又はn-プロピルアルコールを用いた場合も、エタノール濃度を83容量%の消毒組成物と同様の良好な使用感が認められた(被験試料2-39~47)。
Claims (11)
- 下記成分を含有する、pH5.5~7.5の擦り込み式手指消毒組成物:
(A)低級アルコール:50~90容量%、
(B)グリセリン、1,3-ブチレングリコール、及びプロピレングリコールからなる群より選択される少なくとも1種の多価アルコール:0.01~1.0質量%、
(C)ミリスチン酸イソプロピル及びグリセリン脂肪酸エステル:各々0.01~0.12質量%、及び
(D)水。 - 前記低級アルコールが、エタノール、n-プロピルアルコール、及びイソプロピルアルコールから選択される少なくとも1種である、請求項1に記載する擦り込み式手指消毒組成物。
- 前記(C)成分のミリスチン酸イソプロピルとグリセリン脂肪酸エステルとの割合が、ミリスチン酸イソプロピル100質量部に対してグリセリン脂肪酸エステル8~1200質量部である、請求項1又は2に記載する擦り込み式手指消毒組成物。
- 前記(C)成分のグリセリン脂肪酸エステルが、グリセリンの一つのヒドロキシ基に炭素数6~16の飽和又は不飽和脂肪酸がエステル結合したものである、請求項1~3のいずれかに記載する擦り込み式手指消毒組成物。
- さらに(E)pH調整剤を含有する、請求項1~4のいずれかに記載する擦り込み式手指消毒組成物。
- 液状の手指消毒組成物である、請求項1~5のいずれかに記載する擦り込み式手指消毒組成物。
- さらに下記成分を含有する、請求項1~5に記載する擦り込み式手指消毒組成物。
(F)カルボキシビニルポリマー、及びアクリル酸・メタクリル酸アルキル共重合体からなる群より選択される少なくとも1種のアクリル酸系重合体。 - 粘稠状の手指消毒組成物である、請求項7に記載する擦り込み式手指消毒組成物。
- 前記(F)成分のカルボキシビニルポリマーが下記の特性を有するものである、請求項7又は8に記載する擦り込み式手指消毒組成物:
0.2w/v%水溶液(pH7.0-7.5、20±1℃)を、ブルックフィールド型回転粘度計(2号又は4号、12回転)を用いて測定した場合の粘度が、1500~50000mPa・s。 - 前記(F)成分のアクリル酸・メタクリル酸アルキル共重合体が下記の特性を有する(アクリレーツ/アクリル酸アルキル(C10-30))クロスポリマーである、請求項7又は8に記載する擦り込み式手指消毒組成物:
0.5w/v%水溶液(pH7.0-7.5、20±1℃)を、ブルックフィールド型回転粘度計(2号又は4号、12回転)を用いて測定した場合の粘度が、25000~65000mPa・s。 - 前記(E)成分のpH調整剤が、トリエタノールアミン、アミノメチルプロパノール、トロメタミン、テトラヒドロキシプロピルエチレンジアミン、ジイソプロパノールアミン、及びPEG-15コカミンからなる群より選択される少なくとも1種の水溶性又はアルコール可溶性のアミン化合物である、請求項7~10のいずれかに記載する擦り込み式手指消毒組成物。
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