JP2009235011A - Composition for producing non-aqueous plaster, and method for producing non-aqueous plaster - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composition for producing a highly safe non-aqueous plaster which is free from the occurrence of its oozing from the plaster-coated surface of a substrate to the opposite surface thereof, is excellent in self-adhesiveness, shapability and self-adhesiveness stability with time. <P>SOLUTION: The composition for producing a non-aqueous plaster comprises a polyhydric alcohol, a carboxy-bearing polymeric compound soluble to the polyhydric alcohol, and an acetylacetone polyvalent metal salt; wherein it is preferable that the polyhydric alcohol is glycerol and the polymeric compound is a (meth)acrylic acid-based one or its partially neutralized product. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a composition for producing a non-aqueous patch with little skin irritation and excellent shape retention, and a method for producing a non-aqueous patch.

  Conventionally, there is a gel-like patch containing a drug or the like, or an adhesive with a support formed by applying the gel-like patch to a support such as a nonwoven fabric or a woven / knitted fabric. These adhesives are also called poultices, salves, etc., and are attached to the body and used for the treatment of various diseases. Among these patches, water-based patches containing water are conventionally used as a base material for patches because a polymer compound having a carboxyl group (such as an acrylic acid polymer) provides an adhesive action and a gelling action. It is blended as

  Among acrylic acid polymers, partially neutralized polyacrylic acid obtained by neutralizing a part of carboxyl groups with an alkali such as sodium hydroxide is widely used (for example, see Patent Documents 1 and 2). The adhesive with a support containing the partially neutralized product of polyacrylic acid has no exudation of the adhesive from the adhesive-coated surface of the support to the opposite surface of the support, and further the water retention of the adhesive. It has excellent adhesion to the skin when the patch is used, and has excellent peelability after use.

  As described above, although the water-based patch has many advantages, it contains water, and therefore has a problem in storage stability when the medicinal component is easily hydrolyzed. In addition, since moisture easily evaporates, the adhesive strength to the skin may be reduced, and the initial performance of the patch is difficult to maintain.

  In order to solve the problem of the aqueous patch, a patch containing no water (non-aqueous patch) has been proposed (see, for example, Patent Documents 3 and 4).

  The non-aqueous patch described in Patent Document 3 uses a compound containing a glycidyl group or a polyvalent metal salt as a crosslinking agent for a polymer compound having a carboxyl group. However, when a compound containing a glycidyl group is used, the obtained patch has a problem of skin irritation. When a polyvalent metal salt is used as a cross-linking agent, the polyvalent metal salt instantaneously reacts with a carboxyl group by an ionic reaction to crosslink and gel, so that it is difficult to control the crosslinking reaction. Therefore, when obtaining a patch using a polyvalent metal salt, the shapeability is poor in the production process, and the obtained patch is brittle or has poor peelability after use. However, there are problems with the use of polyvalent metal salts.

Since the non-aqueous patch described in Patent Document 4 is not crosslinked, there is a problem of poor shape retention.
JP 58-21612 (Claims, page 3, upper left column, lines 14 to 19) JP-A-61-260014 (Claims, page 2, lower right column, lines 2 to 8) JP-A-63-203162 (Claims, page 2, upper right column, line 20 to lower left column, line 14) JP 2003-113077 A (Claims)

  While the inventors have intensively studied the above problem, the inventors have come up with the use of an acetylacetone polyvalent metal salt as a crosslinking agent in a composition for producing a non-aqueous patch containing a polymer compound having a carboxyl group. . The acetylacetone polyvalent metal salt has a reasonably large stability constant. Therefore, unlike the inorganic polyvalent metal salt, the polyvalent metal salt of acetylacetone polyvalent metal salt does not cause a crosslinking reaction with the carboxyl group of the polymer compound having a carboxyl group at room temperature. However, when the temperature is raised, the polyvalent metal salt in the acetylacetone polyvalent metal salt is released from acetylacetone to form a carboxyl group and a salt. Therefore, it was considered that the crosslinking reaction can be started freely by increasing the temperature. In addition, since acetylacetone is volatile, it does not remain in the patch after the crosslinking reaction.

  Based on the above consideration, a composition for producing a non-aqueous patch comprising at least a polyhydric alcohol, a polymer compound having a carboxyl group soluble in polyhydric alcohol, and an acetylacetone polyvalent metal salt, together with medicinal components and the like After mixing, a non-aqueous patch was prepared by heating for a predetermined temperature and time.

  In the production process, since crosslinking can be performed at a necessary time, the operability is improved, and the obtained non-aqueous patch is gelled uniformly, so that the support is supported from the patch application surface of the support. Not only does the patch exude to the opposite side of the body, but also has excellent adhesiveness and formability, excellent stability over time, such as no decrease in adhesiveness, and no glycidyl group. As a result, the present invention has been completed.

  Accordingly, an object of the present invention is to provide a composition for producing a non-aqueous patch that solves the above problems, and a method for producing a non-aqueous patch.

  The present invention for achieving the above object is described below.

  [1] A composition for producing a non-aqueous patch comprising at least a polyhydric alcohol, a polymer compound having a carboxyl group soluble in polyhydric alcohol, and an acetylacetone polyvalent metal salt.

  [2] The composition for producing a non-aqueous patch according to [1], wherein the polyhydric alcohol is glycerin.

  [3] The composition for producing a non-aqueous patch according to [1], wherein the polymer compound having a carboxyl group soluble in a polyhydric alcohol is a (meth) acrylic acid polymer compound or a partially neutralized product thereof.

  [4] The composition for producing a non-aqueous patch according to [1], wherein a 0.2 mass% aqueous solution of a polymer compound having a carboxyl group soluble in a polyhydric alcohol has a viscosity at pH 7 of 10,000 Pa · s or more.

  [5] The composition for producing a non-aqueous patch according to [1], wherein the polymer compound having a carboxyl group soluble in polyhydric alcohol is neutralized with a base soluble in polyhydric alcohol.

  [6] The composition for producing a non-aqueous patch according to [1], wherein the polyvalent metal is a divalent or trivalent metal.

  [7] The composition for producing a non-aqueous patch according to [1], wherein the polyvalent metal is aluminum or zinc.

  [8] Manufacture of a non-aqueous patch wherein the mixture of the non-aqueous patch manufacturing composition according to any one of [1] to [7] and a medicinal component is heated at 70 to 180 ° C. for 0.5 minutes or more. Method.

  Since the composition for producing a non-aqueous patch of the present invention uses acetylacetone polyvalent metal salt as a crosslinking agent, the composition for producing a non-aqueous patch is crosslinked and gelled when mixed with a medicinal component or the like. There is nothing to do. Therefore, a composition for producing a patch with high uniformity can be produced by mixing for a sufficient time. Thereafter, by heating at a predetermined temperature and time, crosslinking occurs rapidly and gels. Therefore, when manufacturing the patch, each component can be mixed without worrying about gelation, and the operability is good.

  Then, after forming an arbitrary dosage form, it is rapidly, easily and uniformly crosslinked by simply heating. The adhesive prepared in this way has not only exudation of the adhesive patch from the adhesive-coated surface of the support to the opposite surface of the support, but also has excellent adhesiveness and formability and reduced adhesiveness. It is excellent in stability over time such as being free of skin and having high safety such as no problem in skin irritation.

  Hereinafter, the present invention will be described in detail.

  The composition for producing a non-aqueous patch of the present invention comprises at least a polyhydric alcohol, a polymer compound having a carboxyl group soluble in the polyhydric alcohol, and an acetylacetone polyvalent metal salt. This composition is gelled by mixing and heating an active ingredient such as a drug, and acts as a base material that imparts formability to the patch.

  Specifically, polyhydric alcohol used in the present invention is ethylene glycol, propylene glycol, isoprene glycol, 1,3-butanediol, diethylene glycol, dipropylene glycol, triethylene glycol, tripropylene glycol, polyethylene glycol, polypropylene glycol , Glycerin, sorbitol, and hardened castor oil. Of these, glycerin, ethylene glycol, propylene glycol, isoprene glycol, 1,3-butanediol and the like are preferable, and glycerin is most preferable among the preferable ones.

  The polymer compound having a carboxyl group soluble in the polyhydric alcohol used in the present invention is preferably a (meth) acrylic acid [acrylic acid or methacrylic acid] polymer compound or a partially neutralized product thereof.

  The (meth) acrylic acid polymer compound is preferably a polymer obtained by polymerizing a monomer mainly composed of acrylic acid or methacrylic acid, and acrylic acid or methacrylic acid is 70% of all monomer components. More preferred is a polymer occupying ~ 100% by weight.

  The monomer used for the polymerization to the (meth) acrylic acid polymer compound may be any monomer other than acrylic acid or methacrylic acid, as long as the solubility in polyhydric alcohol is not impaired. Even if it uses as a subcomponent of 30 mass% or less among components, it does not interfere.

  Examples of vinyl monomers other than acrylic acid or methacrylic acid that can be used include olefinic unsaturated carboxylic acids such as maleic acid, itaconic acid, and crotonic acid, styrene, alkyl vinyl ether, vinylidene chloride, (meth) acrylic acid esters, ( There are meth) acrylamides, N-vinylformamide, N-vinylacetamide, vinyl acetate, vinylpyrrolidone, acrylonitrile, methacrylonitrile and the like.

  Specific examples of (meth) acrylates include (meth) acrylates such as methyl, ethyl, butylisobutyl, octyl, lauryl, stearyl, etc., 2-methoxyethyl acrylate, 2-ethoxyethyl acrylate And (meth) acrylic acid esters having an ether bond such as 2-hydroxyethyl acrylate, hydroxy group-containing monomers such as 2-hydroxypropyl methacrylate, and glycidyl methacrylate.

  Specific examples of (meth) acrylamides include acrylamide, methacrylamide, dimethylacrylamide, diethylacrylamide, dimethylaminopropylacrylamide, isopropylacrylamide and the like.

  Further, macromonomers such as terminal methacrylate polymethyl methacrylate, terminal styryl polymethyl methacrylate, terminal methacrylate polystyrene, terminal methacrylate polyethylene glycol, and terminal methacrylate acrylonitrile styrene copolymer can also be used.

  Similarly, olefinic unsaturated dicarboxylic acids such as maleic acid, fumaric acid and itaconic acid, and esters thereof can also be used. Furthermore, if necessary, trimethoxyvinylsilane, triethoxyvinylsilane, γ-methacryloxypropyltrimethoxysilane, and the like can be used.

  The (meth) acrylic acid polymer compound may be cross-linked with a cross-linkable monomer as long as the solubility in polyhydric alcohol is not impaired. As the crosslinkable monomer, one selected from a polyalkenyl polyether monomer, a polyvalent vinyl monomer, or a mixture thereof can be used.

  Specific examples of the crosslinkable monomer include tetraallyloxyethane, pentaerythritol tetraallyl ether, pentaerythritol triallyl ether, pentaerythritol diallyl ether, diethylene glycol diallyl ether, trimethylolpropane triallyl ether, trimethylolpropane diallyl ether and And triallyl isocyanurate.

  The partially neutralized product of the (meth) acrylic acid polymer compound may be obtained by polymerizing the above monomers and then partially neutralizing this polymer with a neutralizing agent such as a base or a salt, Alternatively, it may be obtained by partially neutralizing the monomer with a neutralizing agent such as a base or a salt and then polymerizing the neutralized product.

  The degree of neutralization with a neutralizing agent such as a base or salt for the polymer compound having a carboxyl group is preferably 60 mol% or less, more preferably 50 mol% or less, based on the carboxyl group. When this neutralization degree exceeds 60 mol%, since the solubility to a polyhydric alcohol is inferior, it is unpreferable.

  As a neutralizing agent such as a base or salt for neutralizing the carboxyl group, alkali metal bases such as sodium hydroxide and potassium hydroxide, and alkali metal salts such as sodium carbonate and potassium carbonate can be used. It is also possible to use amines. Specific examples of these amines include monoethyleneamine, diethyleneamine, triethyleneamine, monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methyl-1-propanol and the like.

  A polymer compound obtained by neutralizing a monomer with an amine and then polymerizing the neutralized product generally has a low glass transition point, making it difficult to handle in a powder state. Therefore, when using amines as a neutralizing agent, after mixing and dissolving the polyhydric alcohol and the polymer compound having a carboxyl group that is soluble in the polyhydric alcohol, neutralize the mixture by adding amines. The amines are particularly preferably soluble in polyhydric alcohols.

  Since the (meth) acrylic acid polymer compound or partially neutralized product thereof is preferably easily dispersed in the polyhydric alcohol when producing a non-aqueous patch, the form when added to the polyhydric alcohol is A powder or one dissolved in a polyhydric alcohol is preferred.

  Polymerization to a (meth) acrylic acid polymer compound is a method in which one or more monomers selected from the above monomer group are used as a polymerization raw material and polymerized in an aqueous solution (aqueous solution polymerization). , A method in which an organic solvent insoluble in both the monomer and the polymer is used as a dispersion medium, and polymerization is performed in this dispersion medium (reverse phase suspension polymerization), soluble in the monomer and insoluble in the polymer. It is possible to use an organic solvent as a dispersion medium and polymerize in this dispersion medium (precipitation polymerization).

  A method of polymerizing in a polyhydric alcohol is also possible. In the case of this polymerization method, the polymer can be used in the solution state after the completion of the polymerization. However, since the viscosity is generally high, the residual monomer often increases. Therefore, when it is necessary to reduce the residual monomer, a polymerization method in a polyhydric alcohol is not preferable.

  Furthermore, a method of polymerizing in an aqueous polyhydric alcohol solution (aqueous solution polymerization) is also possible. However, since it is difficult to remove moisture, aqueous solution polymerization is not preferred when moisture removal is required.

  In the case of producing a (meth) acrylic acid polymer compound by aqueous solution polymerization, and it is necessary to remove moisture, it is preferable to remove moisture from the product by a spray dryer, a drum dryer or the like. .

  When producing a (meth) acrylic acid polymer compound by reverse phase suspension polymerization or precipitation polymerization using an organic solvent as a dispersion medium, it is preferable to sufficiently remove the organic solvent after polymerization. The organic solvent remaining after the removal treatment is preferably 0.5% by mass or less, and more preferably 0.1% by mass or less.

  Since a patch containing a (meth) acrylic acid polymer compound is affixed to the skin, it is preferable that the residual monomer in the (meth) acrylic acid polymer compound is as small as possible. The residual monomer is preferably 0.5% by mass or less, and more preferably 0.1% by mass or less, based on the (meth) acrylic acid polymer compound.

  The content of the polymer compound having a carboxyl group soluble in the polyhydric alcohol in the composition for producing a non-aqueous patch of the present invention is preferably 0.5 to 40 with respect to 100 parts by mass of the polyhydric alcohol. It is 2-30 mass parts, More preferably, it is 2-30 mass parts. When the content of the polymer compound having a carboxyl group that is soluble in the polyhydric alcohol is less than 0.5 parts by mass, the resulting non-aqueous patch is poorly shaped. When the amount exceeds 30 parts by mass, the viscosity before curing with the acetylacetone polyvalent metal salt is remarkably increased, resulting in poor applicability to the non-woven fabric that is the base material of the patch.

  In order to further improve the formability of the composition for producing a non-aqueous patch, the viscosity at pH 7 of a 0.2 mass% aqueous solution of a polymer compound having a carboxyl group soluble in polyhydric alcohol is 10000 mPa · s or more. It is preferable that it is 15000 to 50000 mPa · s. When this viscosity is less than 10000 mPa · s, the composition for producing a non-aqueous patch is not preferable even if it is subjected to a curing treatment with an acetylacetone polyvalent metal salt, because the formability as a patch is inferior.

  In the case of a polymer compound having a carboxyl group that is soluble in a polyhydric alcohol having a viscosity of 10,000 mPa · s or more and obtained by the above-described precipitation polymerization, water and an organic solvent are removed from the polymerization product. It is preferable that the powder be a powder.

  The metal of the acetylacetone polyvalent metal salt as a crosslinking agent used in the composition for producing a non-aqueous patch of the present invention may be any polyvalent metal as long as it forms a chelate with acetylacetone. It is preferable that the metal be a divalent or trivalent metal. Monovalent metals cannot be crosslinked with carboxyl groups. In the case of a polyvalent metal exceeding trivalent, cross-linking becomes too dense and it becomes difficult to develop adhesiveness. As a specific polyvalent metal that forms a chelate with acetylacetone and is suitable for crosslinking with a carboxyl group, aluminum or zinc that is easily available on the market is particularly preferable. In particular, aluminum is most preferable because it easily manages the degree of crosslinking by the chelate compound and has little discoloration after crosslinking.

  The content of the acetylacetone polyvalent metal salt in the composition for producing a non-aqueous patch of the present invention is preferably 0.01 to 5 parts by mass, more preferably 0.05 to 100 parts by mass of the polyhydric alcohol. ~ 3 parts by mass. If the solubility of the acetylacetone polyvalent metal salt in the polyhydric alcohol is not good, the acetylacetone polyvalent metal salt may be previously dissolved in a diluting solvent such as acetone, ethanol, methanol or the like.

  The composition for producing a non-aqueous patch of the present invention comprising the above composition is uniformly mixed with a medicinal component or the like by a planetary mixer or a kneader, and then shaped or supported in an arbitrary shape such as a sheet. After coating on one side of the body, it is heated at 70 to 180 ° C, preferably 80 to 120 ° C. The heating time is 0.5 minutes or more, preferably 0.5 to 120 minutes, more preferably 1 to 30 minutes. A non-aqueous patch is produced by this heating. Even if the heating time is 120 minutes or more, there is no obstacle caused by this, and only time and energy are wasted.

  Specific examples of the medicinal ingredients include, for example, methyl salicylate, glycol salicylate, menthol, camphor, thymol, mint oil, borneol, glycyrrhizic acid and other antihistamines, indomethacin, flurbiprofen and other anti-inflammatory analgesics, dibucaine hydrochloride, lidocaine And local anesthetics. One or two or more medicinal components can be mixed with a non-aqueous patch preparation composition as necessary. The compounding amount of the medicinal component is usually 0.01 to 10% by mass with respect to the total mass of the non-aqueous patch.

  As long as the effect of this invention is not impaired, components other than the component (essential component) of the said composition for non-aqueous patch manufacture can also be suitably mix | blended with the said non-aqueous patch. For example, powder inorganic fillers such as kaolin, titanium oxide, and mayeic anhydride, antioxidants such as dibutylhydroxytoluene and butylhydroxyanisole, preservatives such as methyl paraoxybenzoate and propyl paraoxybenzoate, etc. Two or more kinds can be appropriately blended in an appropriate amount as long as the effects of the present invention are not impaired.

  Moreover, you may mix | blend the additive generally used for an external preparation. In other words, water-soluble polymers such as gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, polyvinylpyrrolidone, and sodium alginate are used as thickeners and tackifiers in order to further improve the suitability during use of non-aqueous patches and the quality during use. You may mix | blend as an agent.

  In addition to the above, softeners, tackifiers, anti-aging agents, inorganic powders, and the like can be blended in appropriate amounts as long as the effects of the present invention are not impaired. The preferable compounding amount of the above optional components is 0.1 to 50% by mass with respect to the total mass of the non-aqueous patch.

  Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples. Moreover, the evaluation method about the processing conditions in each Example and a comparative example, and the physical property of the polymeric compound which has a carboxyl group soluble in a polyhydric alcohol, and a non-aqueous patch was implemented with the following method.

<Viscosity at pH 7 of 0.2 mass% aqueous solution>
In a 1000 ml beaker, 200 g of ion-exchanged water was weighed and 0.40 g of a polymer compound powder having a carboxyl group soluble in polyhydric alcohol was gradually added while stirring with a magnetic stirrer. After addition of the whole amount, the number of rotations was reduced and stirring was continued. After confirming that the whole amount of the polymer compound powder was dissolved, 0.40 ml of 10N-NaOH aqueous solution was added and sufficiently manually stirred until uniform. After confirming that the pH is in the range of 6.5 to 8.5, the viscosity at a temperature of 25 ± 1 ° C. is measured with a BH viscometer (rotor number: No. 6, rotation speed: 20 rpm, measurement time: 30 seconds later) ).

<Polymer compound having carboxyl group soluble in polyhydric alcohol used>
Julimer AC-10LHP (registered trademark) [manufactured by Nippon Pure Chemicals Co., Ltd., polyacrylic acid powder, viscosity of 850 mPa · s non-neutralized aqueous solution of 10% by mass, viscosity of 50% mPa · s at pH 7 of 0.2% by mass aqueous solution] Junron PW-150 (registered trademark) [manufactured by Nippon Pure Chemicals Co., Ltd., cross-linked polyacrylic acid powder, viscosity of 35,000 mPa · s at pH 7 of 0.2 mass% aqueous solution], Junron PW-350 (registered trademark) [Nippon Jun A viscosity of 28,000 mPa · s at pH 7 of 0.2 mass% aqueous solution was used as a cross-linked polyacrylic acid powder manufactured by Yakuhin Co., Ltd.

<Evaluation of non-aqueous patch>
The hardness of the non-aqueous patch obtained by curing the non-aqueous patch manufacturing composition is such that the non-aqueous patch manufacturing composition before curing is filled in a 60 mmφ container so that the thickness is 10 mm or more. The heat treatment was performed under the curing conditions shown in Table 1. Using a hardness measuring device [RHEO METER model CR-50DX manufactured by Sun Scientific Co., Ltd.], a 30.0 mmφ bakelite cylinder was pushed to 2 mm at a speed of 60 mm / min, and the measured mN (millinewton) was measured. Displayed as hardness evaluation results.

Sticking property to the skin, a non-aqueous patch preparation composition before curing, the stretchable nonwoven fabric (basis weight polyester nonwoven fabric of 105 g / m ²⁾ was applied at a thickness of about 2mm (20g / 100cm ²⁾ in, A non-aqueous patch obtained by applying heat treatment under the curing conditions shown in Table 1 was pasted on the arm and the following criteria ○: After the arm was satisfactorily stuck and peeled off, there was no composition remaining on the arm It was.
X: It stuck to the arm, but most of the composition remained on the arm after peeling.
Evaluated.

With respect to the oozing property, one week after the preparation of the non-aqueous patch, the back surface of the polyester nonwoven fabric was visually observed, and the following standard ○: No oozing.
×: Exudation is partly or entirely.
Evaluated.

Example 1
500 g of glycerin, 25 g of Jurimer AC-10LHP (registered trademark) and 15 g of Junlon PW-150 (registered trademark) were added to a 2 L container with a planetary mixer jacket, and the mixture was sufficiently stirred and dispersed. Then, it fully stirred until it became uniform with the jacket temperature of 70 degreeC, and the glycerol solution was obtained.

  In advance, 7.5 g of acetylacetone aluminum was dissolved in 50 g of ethanol to prepare an ethanol solution of acetylacetone aluminum. After cooling the glycerin solution to 30 ° C., 35 g of triethanolamine and ethanol of acetylacetone aluminum Add 57.5 g of solution to the glycerin solution. Stir well until uniform.

  Subsequently, defoaming was performed under reduced pressure to obtain a composition for producing a non-aqueous patch. The composition before curing was heated for 10 minutes at a temperature of 120 ° C. under the curing conditions shown in Table 1. According to the preparation conditions for the non-aqueous patch described above, a non-aqueous patch having a hardness evaluation of 1620 mN, a sticking evaluation to the skin of ○, and a bleeding property of ○ was obtained.

Examples 2-9, Comparative Examples 1-8
Except having operated by the compounding ratio (mass part) of the component shown to Tables 1-3, and hardening conditions, it operated similarly to Example 1 and obtained the nonaqueous patch of the evaluation result shown to Tables 1-3. In Example 9, acetylacetone aluminum in powder form without using a diluent solvent was added to a solution of glycerin and Junlon PW-350 (registered trademark) after cooling to 30 ° C.

  As shown in Tables 1 and 2, all of the non-aqueous patches obtained in Examples 1 to 9 had good hardness, stickability to the skin, and exudation properties.

  As shown in Table 3, in Comparative Examples 1 to 3, no cross-linking agent was used, and a non-aqueous patch with good hardness and good adhesiveness to the skin could not be obtained. In Comparative Example 4, a polymer compound having a carboxyl group that is soluble in polyhydric alcohol is not used, the curing reaction does not occur, the composition remains a non-viscous liquid, and the adhesiveness to the skin cannot be measured. there were. In Comparative Example 5, aluminum chloride was used as the cross-linking agent, and gelation occurred during the production of the non-aqueous patch, and a non-aqueous patch was not obtained. For this reason, it was not possible to measure the hardness of non-aqueous patches and the applicability to skin.

  As shown in Table 4, in Comparative Example 6, since the curing temperature was high and components such as glycerin in the composition were volatilized during the production of the non-aqueous patch, a non-aqueous patch was not obtained. It was not possible to measure the hardness and the adhesiveness evaluation to the skin. In Comparative Example 7, a non-aqueous patch with a short curing time, good hardness and good adhesiveness to the skin could not be obtained. In Comparative Example 8, the curing temperature was low, the curing reaction did not occur, the composition remained a non-viscous liquid, and the adhesiveness to the skin was not measurable.

Claims (8)

A composition for producing a non-aqueous patch comprising at least a polyhydric alcohol, a polymer compound having a carboxyl group soluble in polyhydric alcohol, and an acetylacetone polyvalent metal salt. The composition for producing a non-aqueous patch according to claim 1, wherein the polyhydric alcohol is glycerin. The composition for producing a non-aqueous patch according to claim 1, wherein the polymer compound having a carboxyl group soluble in polyhydric alcohol is a (meth) acrylic acid polymer compound or a partially neutralized product thereof. The composition for producing a non-aqueous patch according to claim 1, wherein a 0.2 mass% aqueous solution of a polymer compound having a carboxyl group soluble in a polyhydric alcohol has a viscosity at pH 7 of 10,000 Pa · s or more. The composition for producing a non-aqueous patch according to claim 1, wherein the polymer compound having a carboxyl group soluble in polyhydric alcohol is neutralized with a base soluble in polyhydric alcohol. The composition for producing a non-aqueous patch according to claim 1, wherein the polyvalent metal is a divalent or trivalent metal. The composition for producing a non-aqueous patch according to claim 1, wherein the polyvalent metal is aluminum or zinc. The manufacturing method of the non-aqueous patch which heats the mixture of the composition for non-aqueous patch manufacture in any one of Claim 1 thru | or 7, and a medicinal component at 70-180 degreeC for 0.5 minute or more.