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JP6558117B2 - Dermal preparation - Google Patents
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JP6558117B2 - Dermal preparation - Google Patents

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JP6558117B2
JP6558117B2 JP2015144511A JP2015144511A JP6558117B2 JP 6558117 B2 JP6558117 B2 JP 6558117B2 JP 2015144511 A JP2015144511 A JP 2015144511A JP 2015144511 A JP2015144511 A JP 2015144511A JP 6558117 B2 JP6558117 B2 JP 6558117B2
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JP2016044177A (en
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芳昂 横井
芳昂 横井
晃也 阿部
晃也 阿部
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Taisho Pharmaceutical Co Ltd
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Description

本発明は皮膚用剤に関する。更に詳しくは皮膚付着性を高めた皮膚用剤に関するものである。   The present invention relates to a dermatological agent. More specifically, the present invention relates to a dermatological agent with improved skin adhesion.

皮膚疾患において例えば水虫・たむしなどの治療に際し、患部に製剤を塗布した場合、汗や衣類との摩擦等により製剤が患部から除かれやすいが、効果的な治療を行うためには、塗布部位に製剤を長時間保持されることが望ましい。
従来、製剤を塗布部位に長時間保持させる方法として、アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョンを配合した技術(特許文献1)、カルボキシビニルポリマーを配合した技術(特許文献2)、アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョン、メチルセルロース、グリセリンモノステアレートを配合した組成物(特許文献3)、アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョンとポリシロキサン類を配合した組成物(特許文献4)が報告されているが、いずれも製剤の付着性は十分ではなかった。
In the treatment of skin diseases such as athlete's foot and insects, when the preparation is applied to the affected area, the preparation is easily removed from the affected area due to sweat, friction with clothing, etc. It is desirable to hold the formulation for a long time.
Conventionally, as a method for holding the preparation at the application site for a long time, a technique in which a methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion is blended (Patent Document 1), a technique in which a carboxyvinyl polymer is blended (Patent Document 2) , Methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion, composition containing methylcellulose and glycerin monostearate (Patent Document 3), methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion and polysiloxane Although the composition which mix | blended the kind (patent document 4) was reported, the adhesiveness of a formulation was not enough in all.

特開平7−126164JP-A-7-126164 特開2006−104078JP 2006-104078 A 特開平7−126191JP-A-7-126191 特開平7−126192JP 7-126192 A

本発明は皮膚に対する付着性を高めた皮膚用剤を提供することである。   The present invention is to provide a dermatological agent having improved adhesion to the skin.

本発明者らは、上記課題を解決するため種々検討した結果、アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョンとカルボキシビニルポリマー又はアクリル酸・メタクリル酸アルキル共重合体を組み合わせることにより、製剤の皮膚付着性が顕著に改善されることを見出し、本発明を完成した。   As a result of various studies to solve the above problems, the present inventors have combined a methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion with a carboxyvinyl polymer or an acrylic acid / alkyl methacrylate copolymer, It was found that the skin adhesion of the preparation was remarkably improved, and the present invention was completed.

すなわち本発明は、
(1)(A)アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョン及び(B)カルボキシビニルポリマー又はアクリル酸・メタクリル酸アルキル共重合体を配合した皮膚用剤、
(2)クリーム剤、乳剤、軟膏剤又はゲル剤である前記(1)に記載の皮膚用剤、
(3)アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョンの配合量が製剤全体に対して0.05〜10.0質量%である前記(1)又は(2)に記載の皮膚用剤、
(4)カルボキシビニルポリマー又はアクリル酸・メタクリル酸アルキル共重合体の配合量が製剤全体に対して0.001〜10.0質量%である前記(1)又は(2)に記載の皮膚用剤である。
That is, the present invention
(1) (A) Methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion and (B) a skin preparation containing carboxyvinyl polymer or acrylic acid / alkyl methacrylate copolymer,
(2) The dermatological preparation according to (1), which is a cream, emulsion, ointment or gel,
(3) For skin according to (1) or (2), the blending amount of the methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion is 0.05 to 10.0% by mass relative to the whole preparation. Agent,
(4) The dermatological preparation according to (1) or (2), wherein the amount of carboxyvinyl polymer or acrylic acid / alkyl methacrylate copolymer is 0.001 to 10.0% by mass relative to the whole preparation. It is.

本発明により、皮膚に対する付着性を高めることにより、製剤の保持性を高めた皮膚用剤を提供することが可能となった。   According to the present invention, it has become possible to provide a dermatological agent with improved retention of the preparation by enhancing adhesion to the skin.

実施例1で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in Example 1. FIG. 比較例1で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in the comparative example 1. FIG. 比較例2で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in the comparative example 2. FIG. 比較例3で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in the comparative example 3. FIG. 実施例1で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the formulation prepared in Example 1 at a constant speed for 20 minutes. 比較例1で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the preparation prepared in the comparative example 1 at a constant speed for 20 minutes. 比較例2で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the formulation prepared in the comparative example 2 at a constant speed for 20 minutes. 比較例3で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the formulation prepared in the comparative example 3 at a constant speed for 20 minutes. 実施例2で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in Example 2. FIG. 比較例4で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in the comparative example 4. FIG. 比較例5で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in the comparative example 5. FIG. 比較例6で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in the comparative example 6. FIG. 比較例7で調製した製剤を塗布したスライドガラスの塗布直後の状態を示す写真である。It is a photograph which shows the state immediately after application | coating of the slide glass which apply | coated the formulation prepared in the comparative example 7. FIG. 実施例2で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on a slide glass after shaking the slide glass which apply | coated the formulation prepared in Example 2 at a constant speed for 20 minutes. 比較例4で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the formulation prepared in the comparative example 4 at a constant speed for 20 minutes. 比較例5で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the formulation prepared in the comparative example 5 at a constant speed for 20 minutes. 比較例6で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the formulation prepared in the comparative example 6 at constant speed for 20 minutes. 比較例7で調製した製剤を塗布したスライドガラスを一定速度で20分間振とうした後のスライドガラス上の状態を示す写真である。It is a photograph which shows the state on the slide glass after shaking the slide glass which apply | coated the formulation prepared in the comparative example 7 at a constant speed for 20 minutes.

本発明のカルボキシビニルポリマーは、アクリル酸の重合体を意味する。例えば、0.5%水溶液の粘度が4000〜10000mPa・s、40000〜60000 mPa・sなど粘度の異なるいくつかのタイプがあるが、本発明では皮膚用剤としたときの態様に応じて適宜に使い分けることが出来る。   The carboxyvinyl polymer of the present invention means a polymer of acrylic acid. For example, there are several types with different viscosities such as a viscosity of a 0.5% aqueous solution of 4000 to 10000 mPa · s and 40000 to 60000 mPa · s. You can use them properly.

アクリル酸・メタクリル酸アルキル共重合体はアクリル酸とメタクリル酸からなる共重合体である。例えば、0.2%水溶液の粘度が5500〜16500mPa・s、1500〜5000mPa・sなど粘度の異なるいくつかのタイプがあるが、本発明では皮膚用剤としたときの態様に応じて適宜に使い分けることが出来る。
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の配合量は、本発明の皮膚用剤全体の0.001〜10.0質量%が好ましく、より好ましくは0.005〜5.0質量%である。
The acrylic acid / alkyl methacrylate copolymer is a copolymer of acrylic acid and methacrylic acid. For example, there are several types with different viscosities such as a viscosity of 0.2% aqueous solution of 5500 to 16500 mPa · s and 1500 to 5000 mPa · s, but in the present invention, they are properly used depending on the mode when used as a skin preparation. I can do it.
The blending amount of the carboxyvinyl polymer and the acrylic acid / alkyl methacrylate copolymer is preferably 0.001 to 10.0% by mass, more preferably 0.005 to 5.0% by mass, based on the whole skin preparation of the present invention. It is.

アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョンの配合量は本発明の皮膚用剤全体の0.05〜10.0質量%が好ましく、より好ましくは0.5〜10.0質量%である。   The blending amount of the methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion is preferably 0.05 to 10.0% by mass, more preferably 0.5 to 10.0% by mass, based on the whole skin preparation of the present invention. It is.

本発明の皮膚用剤は、皮膚に塗布する製剤であり、例えば、クリーム剤、乳剤、軟膏剤、ゲル剤などが挙げられる。
本発明の皮膚用剤には、皮膚用剤で用いられる任意成分を、本発明の効果を損なわない範囲で適宜配合することができる。このような任意成分としては、精製水、低級アルコールや多価アルコール等の溶解補助剤、炭化水素、グリセリン脂肪酸エステル、ワックス成分、界面活性剤、抗酸化剤、乳化安定剤、ゲル化剤、粘着剤等、各種動植物からの抽出物、pH調整剤、防腐剤、キレート剤、香料、色素、液化ガスなどが挙げられる。また、抗真菌剤、殺菌剤、鎮痛剤、抗ヒスタミン剤、抗炎症剤、組織修復剤、鎮痒剤、保湿剤、血管収縮剤、抗アレルギー剤、清涼化剤、酸素除去剤、ビタミン、紫外線吸収剤、紫外線散乱剤などの薬効成分などを本発明の効果を損なわない範囲で適宜に配合することができる。
The skin preparation of the present invention is a preparation to be applied to the skin, and examples thereof include creams, emulsions, ointments, gels and the like.
In the dermatological preparation of the present invention, optional components used in the dermatological preparation can be appropriately blended within a range not impairing the effects of the present invention. Such optional components include purified water, solubilizing agents such as lower alcohols and polyhydric alcohols, hydrocarbons, glycerin fatty acid esters, wax components, surfactants, antioxidants, emulsion stabilizers, gelling agents, adhesives. Examples include extracts from various animals and plants, pH adjusters, preservatives, chelating agents, fragrances, pigments, liquefied gases, and the like. In addition, antifungal agent, bactericidal agent, analgesic agent, antihistamine agent, anti-inflammatory agent, tissue repair agent, antipruritic agent, moisturizer, vasoconstrictor, antiallergic agent, cooling agent, oxygen scavenger, vitamin, UV absorber, Medicinal components such as ultraviolet scattering agents can be appropriately blended within a range not impairing the effects of the present invention.

以下に、実施例、比較例及び試験例を示し、本発明を詳細に説明するが、本発明は、下記の例に限定されるものではない。なお、実施例及び比較例において、数値は全て質量%を意味するものとする。   Hereinafter, the present invention will be described in detail with reference to examples, comparative examples, and test examples. However, the present invention is not limited to the following examples. In addition, in an Example and a comparative example, all numerical values shall mean the mass%.

(1%カルボキシビニルポリマーの調製方法)
精製水に1質量%のカルボキシビニルポリマーを添加し、攪拌後、水酸化ナトリウムを適量加えて中和し、調製した。
(Method for preparing 1% carboxyvinyl polymer)
1% by mass of carboxyvinyl polymer was added to purified water, and after stirring, an appropriate amount of sodium hydroxide was added for neutralization to prepare.

(1%アクリル酸・メタクリル酸アルキル共重合体の調製方法)
精製水に1質量%のアクリル酸・メタクリル酸アルキル共重合体を添加し、攪拌後、水酸化ナトリウムを適量加えて中和し、調製した。
(Method for preparing 1% acrylic acid / alkyl methacrylate copolymer)
1% by mass of acrylic acid / alkyl methacrylate copolymer was added to purified water, and after stirring, an appropriate amount of sodium hydroxide was added for neutralization.

(1%メチルセルロースの調製方法)
精製水に1質量%のメチルセルロースを添加後、攪拌し、調製した。
(Method for preparing 1% methylcellulose)
After adding 1% by mass of methylcellulose to purified water, the mixture was stirred and prepared.

(1%ヒドロキシエチルセルロースの調製方法)
精製水に1質量%のヒドロキシエチルセルロースを添加後、攪拌し、調製した。
(Method for preparing 1% hydroxyethyl cellulose)
After adding 1% by mass of hydroxyethyl cellulose to purified water, the mixture was stirred and prepared.

(1%キサンタンガムの調製方法)
精製水に1質量%のキサンタンガムを添加後、攪拌し、調製した。
(Method for preparing 1% xanthan gum)
After adding 1% by mass of xanthan gum to purified water, it was prepared by stirring.

実施例1、2、比較例1〜7
(各皮膚用剤の調整方法)
表1、2に示す処方に従い各成分を秤量後、攪拌して実施例1、2及び比較例1〜7の皮膚用剤を調製した。
Examples 1 and 2 and Comparative Examples 1 to 7
(How to adjust each skin preparation)
According to the formulations shown in Tables 1 and 2, each component was weighed and stirred to prepare the skin preparations of Examples 1 and 2 and Comparative Examples 1-7.

Figure 0006558117
Figure 0006558117

Figure 0006558117
Figure 0006558117

(試験例)
実施例1、2及び比較例1〜7の皮膚用剤約0.2gをスライドガラス上に、直径2cmの円の範囲に塗布した。その後、42℃の温水中で製剤を塗布したスライドガラスを一定速度(タイテック株式会社製 卓上型振とう恒温槽 パーソナル11、スピード50min-1)で20分間振とう後、スライドガラス上の製剤の残存を目視で評価した。
(評価基準)
評価の結果を以下のような基準で数値化し、結果を表3及び4に示した。
3:製剤の大部分が残っている。
2:製剤の半分程度が残っている。
1:製剤がほとんど残っていない。
0:製剤が全く残っていない。
(Test example)
About 0.2 g of the dermatological preparations of Examples 1 and 2 and Comparative Examples 1 to 7 were applied on a slide glass in a circle having a diameter of 2 cm. After that, the slide glass coated with the preparation in 42 ° C warm water was shaken for 20 minutes at a constant speed (desktop shaking water bath personal 11, speed 50min -1 manufactured by Taitec Co., Ltd.), and then the preparation on the slide glass remained. Was visually evaluated.
(Evaluation criteria)
The evaluation results were quantified according to the following criteria, and the results are shown in Tables 3 and 4.
3: Most of the formulation remains.
2: About half of the preparation remains.
1: Almost no preparation remains.
0: No preparation remains.

Figure 0006558117
Figure 0006558117

Figure 0006558117
Figure 0006558117

表3、4及び図1〜18に示したように、比較例1〜7では製剤がほとんど残っていない、もしくは全く残っていなかった。その一方で、実施例1、2では製剤の大部分が残っており、アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョンとカルボキシビニルポリマー又はアクリル酸・メタクリル酸アルキル共重合体を組み合わせることにより、外用剤の皮膚付着性が顕著に改善した。 As shown in Tables 3 and 4 and FIGS. 1 to 18, in Comparative Examples 1 to 7, almost no preparation remained, or no preparation remained. On the other hand, in Examples 1 and 2, most of the preparation remains, and a combination of a methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion and a carboxyvinyl polymer or an acrylic acid / alkyl methacrylate copolymer is combined. As a result, the skin adhesiveness of the external preparation was remarkably improved.

本発明により、皮膚に対する付着性を高めた皮膚用剤を提供することが可能となった。よって、より商品価値の高い皮膚用剤の市販を通じて医薬品産業等の発展が期待される。 According to the present invention, it is possible to provide a dermatological agent having improved adhesion to the skin. Therefore, development of the pharmaceutical industry and the like is expected through the marketing of dermatological agents with higher commercial value.

Claims (3)

(A)アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョン及び(B)カルボキシビニルポリマー又はアクリル酸・メタクリル酸アルキル共重合体を配合した皮膚用剤であって、クリーム剤、乳剤、軟膏剤又はゲル剤であることを特徴とする皮膚用剤(A) Methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion and (B) dermatological agent containing carboxyvinyl polymer or acrylic acid / alkyl methacrylate copolymer , cream, emulsion, ointment A dermatological agent characterized by being an agent or a gel agent . アクリル酸メチル・アクリル酸−2−エチルヘキシル共重合樹脂エマルジョンの配合量が製剤全体に対して0.05〜10.0質量%である請求項1に記載の皮膚用剤。 The dermatological preparation according to claim 1 , wherein the blending amount of the methyl acrylate / acrylic acid-2-ethylhexyl copolymer resin emulsion is 0.05 to 10.0 mass% with respect to the whole preparation. カルボキシビニルポリマー又はアクリル酸・メタクリル酸アルキル共重合体の配合量が製剤全体に対して0.001〜10.0質量%である請求項1に記載の皮膚用剤。 The dermatological preparation according to claim 1 , wherein the amount of the carboxyvinyl polymer or the acrylic acid / alkyl methacrylate copolymer is 0.001 to 10.0% by mass relative to the whole preparation.
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