JP4978040B2 - Topically applied transdermal absorption tape - Google Patents
Topically applied transdermal absorption tape Download PDFInfo
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- JP4978040B2 JP4978040B2 JP2006100698A JP2006100698A JP4978040B2 JP 4978040 B2 JP4978040 B2 JP 4978040B2 JP 2006100698 A JP2006100698 A JP 2006100698A JP 2006100698 A JP2006100698 A JP 2006100698A JP 4978040 B2 JP4978040 B2 JP 4978040B2
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- pressure
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- sensitive adhesive
- transdermal absorption
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- 238000010521 absorption reaction Methods 0.000 title claims description 43
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 61
- 239000010410 layer Substances 0.000 claims description 56
- 229920005989 resin Polymers 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 34
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 26
- 150000002736 metal compounds Chemical class 0.000 claims description 22
- LVYLCBNXHHHPSB-UHFFFAOYSA-N 2-hydroxyethyl salicylate Chemical compound OCCOC(=O)C1=CC=CC=C1O LVYLCBNXHHHPSB-UHFFFAOYSA-N 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 229960001047 methyl salicylate Drugs 0.000 claims description 16
- 230000003110 anti-inflammatory effect Effects 0.000 claims description 12
- 229960002389 glycol salicylate Drugs 0.000 claims description 10
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 9
- 150000003505 terpenes Chemical class 0.000 claims description 9
- 235000007586 terpenes Nutrition 0.000 claims description 9
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 7
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 claims description 6
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 4
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- YKPUWZUDDOIDPM-SOFGYWHQSA-N capsaicin Chemical compound COC1=CC(CNC(=O)CCCC\C=C\C(C)C)=CC=C1O YKPUWZUDDOIDPM-SOFGYWHQSA-N 0.000 description 4
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- 239000002904 solvent Substances 0.000 description 4
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- 239000004698 Polyethylene Substances 0.000 description 3
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
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- 229930007886 (R)-camphor Natural products 0.000 description 2
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- 239000002250 absorbent Substances 0.000 description 2
- WMGSQTMJHBYJMQ-UHFFFAOYSA-N aluminum;magnesium;silicate Chemical compound [Mg+2].[Al+3].[O-][Si]([O-])([O-])[O-] WMGSQTMJHBYJMQ-UHFFFAOYSA-N 0.000 description 2
- 229940121363 anti-inflammatory agent Drugs 0.000 description 2
- 239000002260 anti-inflammatory agent Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
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- 239000010642 eucalyptus oil Substances 0.000 description 2
- 229940044949 eucalyptus oil Drugs 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- CGIGDMFJXJATDK-UHFFFAOYSA-N indomethacin Chemical compound CC1=C(CC(O)=O)C2=CC(OC)=CC=C2N1C(=O)C1=CC=C(Cl)C=C1 CGIGDMFJXJATDK-UHFFFAOYSA-N 0.000 description 2
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- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
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- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
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- 229920000642 polymer Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229960001860 salicylate Drugs 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 2
- 229960004889 salicylic acid Drugs 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 230000036556 skin irritation Effects 0.000 description 2
- 231100000475 skin irritation Toxicity 0.000 description 2
- 230000004936 stimulating effect Effects 0.000 description 2
- 230000035900 sweating Effects 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 1
- 206010013647 Drowning Diseases 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- 208000007811 Latex Hypersensitivity Diseases 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 206010039251 Rubber sensitivity Diseases 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 125000002723 alicyclic group Chemical group 0.000 description 1
- 229920006271 aliphatic hydrocarbon resin Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
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- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229940007061 capsicum extract Drugs 0.000 description 1
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- 229960003338 crotamiton Drugs 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 229960002390 flurbiprofen Drugs 0.000 description 1
- SYTBZMRGLBWNTM-UHFFFAOYSA-N flurbiprofen Chemical compound FC1=CC(C(C(O)=O)C)=CC=C1C1=CC=CC=C1 SYTBZMRGLBWNTM-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
本発明は、抗炎症成分としてサリチル酸メチル又はサリチル酸グリコールを含有し、皮膚適用時に汗による接着力の低下を防止するとともに、凝集力低下による使用上の問題点を改善した感圧性接着剤層を有する経皮吸収テープ剤に関するものである。 The present invention contains methyl salicylate or glycol salicylate as an anti-inflammatory component, and has a pressure-sensitive adhesive layer that prevents a decrease in adhesive strength due to sweat when applied to the skin, and has improved problems in use due to a decrease in cohesive strength The present invention relates to a transdermal absorption tape.
一般に、経皮吸収テープ剤は、裏打ち材(支持体)上に薬物を含有する感圧性接着剤(粘着剤)層を設けたものである。
感圧性接着剤には低皮膚刺激性などの特長を有するアクリル系粘着剤が広く使用されているが、該粘着剤を用いると、経皮吸収テープ剤の製造工程において該粘着剤の溶剤を乾燥させる工程が必要となるため、融点又は沸点の低い薬剤であると揮発してしまうという弱点がある。したがって、上記のように融点又は沸点の低い薬剤を用いる場合には、一般には溶剤を必要としないカレンダー塗工法又はホットメルト塗工法が可能であるゴム系粘着剤が用いられており、さらに、天然ゴムのラテックスアレルギーを回避するために合成ゴム系エラストマー(例えばスチレン・イソプレン・スチレンブロック共重合体)を主成分としたゴム系粘着剤が多く用いられている。例えば、カレンダー塗工法では、高温で合成ゴム系エラストマーを素練し、粘着付与樹脂等を加えてさらに混練を行い、最後に温度を下げてから有効成分(サリチル酸メチルなど)を加えて混練を行うことが多く用いられている。
しかし、上記合成ゴム系エラストマーは疎水性であり、該エラストマーを主成分とした感圧性接着剤を用いた経皮吸収テープ剤においては、患部に適用(貼付)した際、適用部位の発汗等による体液の感圧性接着剤層への付着によって接着力が低下し、捲れ、更には適用部位からの脱落などが起こることが問題となっている。
このような発汗による経皮吸収テープ剤の接着力の低下を改善する方法として、様々な技術が公開されている。
たとえば、ゴム系粘着剤中に吸水性樹脂粉末及び/又は水溶性高分子粉末を分散させたプラスター基剤を用いた経皮吸収製剤(特許文献1)、並びに粘着層を担持する担持体が支持体と、この支持体と粘着層の間に介在された吸水層からなる構造を有する貼付剤(特許文献2)などが提案されている。
Acrylic adhesives with features such as low skin irritation are widely used for pressure-sensitive adhesives, but when these adhesives are used, the adhesive solvent is dried in the process of manufacturing a transdermal absorption tape. Therefore, there is a weak point that a drug having a low melting point or boiling point volatilizes. Therefore, when using a chemical having a low melting point or boiling point as described above, a rubber-based pressure-sensitive adhesive that does not require a solvent or a hot-melt coating method is generally used. In order to avoid latex allergy of rubber, a rubber-based adhesive mainly composed of a synthetic rubber-based elastomer (for example, styrene / isoprene / styrene block copolymer) is often used. For example, in the calendar coating method, a synthetic rubber elastomer is kneaded at a high temperature, a tackifying resin is added and further kneaded, and finally the temperature is lowered and an active ingredient (such as methyl salicylate) is added and kneaded. Is often used.
However, the synthetic rubber-based elastomer is hydrophobic, and in the case of a transdermal absorption tape using a pressure-sensitive adhesive mainly composed of the elastomer, when applied (pasted) to the affected area, it may be caused by perspiration at the application site. Adhesion of the body fluid to the pressure-sensitive adhesive layer is reduced, drowning, and dropping from the application site has become a problem.
Various techniques have been disclosed as methods for improving the decrease in the adhesive strength of the transdermal absorption tape due to perspiration.
For example, a transdermal preparation using a plaster base in which a water-absorbent resin powder and / or a water-soluble polymer powder is dispersed in a rubber-based adhesive (Patent Document 1), and a support that supports an adhesive layer are supported. A patch (Patent Document 2) having a structure comprising a body and a water-absorbing layer interposed between the support and the adhesive layer has been proposed.
しかしながら、前述の水溶性高分子粉末等を分散させたプラスター基剤からなる経皮吸収製剤にあっては、皮膚に適用した際に該高分子粉末が汗を吸収して膨張し、製剤を除去する際に皮膚表面に膨張した高分子粉末が付着して残りやすく、きれいに剥がれないという使用上の問題があった。
一方、前述の粘着層と支持体の間に吸水層を別に設けた貼付剤にあっては、粘着層が通水性を有する必要があり、この通水性を得るために一般に発泡等によって多数の微細な連通孔を粘着層に形成する方法などが取られる。しかし、熱可塑性のゴム系粘着剤からなる粘着層においては発泡安定性が悪く、時間経過とともに通水性の低下が起こることに問題があった。
However, in the case of a transdermal absorption preparation comprising a plaster base in which the aforementioned water-soluble polymer powder or the like is dispersed, the polymer powder absorbs sweat and expands when applied to the skin, thereby removing the preparation. In this case, there is a problem in use that the expanded polymer powder tends to adhere to the skin surface and does not peel off.
On the other hand, in the patch in which a water-absorbing layer is separately provided between the adhesive layer and the support described above, the adhesive layer needs to have water permeability. For example, a method of forming a continuous communication hole in the adhesive layer is used. However, the pressure-sensitive adhesive layer made of a thermoplastic rubber-based pressure-sensitive adhesive has poor foaming stability, and there has been a problem in that water permeability decreases with time.
また、代表的な合成ゴム系エラストマーであるスチレン・イソプレン・スチレンブロック共重合体からなる感圧性接着剤は、サリチル酸系抗炎症剤、特にサリチル酸メチルと配合すると凝集性が著しく低下し、時間の経過とともに感圧性接着剤層の裏打ち材からのは
み出しが起こるといった使用上の問題が発生する傾向があった。
さらに、感圧性接着剤層の充填剤として一般に使用されるケイ酸塩類は、親水性を示して汗を吸収することはできるが、粒子径が極めて小さく比表面積が大きい反面嵩高いために、感圧性接着剤層中に占める容積が大きくなること、さらに、ケイ酸塩類は一般的な貼付剤やテープ剤の表面材に用いる剥離可能な保護フィルムの処理剤として多用されるシリコンとの親和性が高いことから、時間の経過とともに感圧性接着剤層と保護フィルムが密着して剥がし難くなるという欠点があった。
以上のように、皮膚適用時に汗による接着力の低下を改善し、且つ、薬効成分としてサリチル酸系抗炎症剤を含有した場合においても裏打ち材からの粘着剤層のはみ出しといった粘着剤の凝集力低下による問題が生ずることがなく、さらに保護フィルムとの好適な剥離性をも有する感圧性接着剤層を有する経皮吸収テープ剤の開発がのぞまれていた。
In addition, pressure-sensitive adhesives composed of styrene / isoprene / styrene block copolymers, which are typical synthetic rubber elastomers, significantly decrease cohesion when mixed with salicylic acid anti-inflammatory agents, especially methyl salicylate, and the passage of time. At the same time, there is a tendency to cause a problem in use such that the pressure-sensitive adhesive layer protrudes from the backing material.
In addition, silicates commonly used as fillers for pressure sensitive adhesive layers are hydrophilic and can absorb sweat, but have a very small particle size and large specific surface area, but are bulky. The volume occupied in the pressure-sensitive adhesive layer is increased, and silicates have an affinity for silicon, which is frequently used as a treatment for a peelable protective film used for the surface material of general patches and tapes. Since it is high, the pressure-sensitive adhesive layer and the protective film are in close contact with each other over time, and there is a drawback that it is difficult to remove.
As described above, the adhesive strength decline due to sweat when applied to the skin is improved, and even when a salicylic acid-based anti-inflammatory agent is included as a medicinal ingredient, the cohesive strength of the adhesive is reduced, such as the adhesive layer sticking out from the backing material. Development of a percutaneous absorption tape agent having a pressure-sensitive adhesive layer having a suitable peelability from the protective film has not been desired.
本発明は上記問題点を鑑みなされたものであって、抗炎症成分としてサリチル酸メチル又はサリチル酸グリコールを含み、汗による接着力の低下防止(優れた皮膚接着性)と凝集力低下防止に優れる感圧性接着剤層を有する局所適用型経皮吸収テープ剤を提供することを目的とする。 The present invention has been made in view of the above problems, and includes methyl salicylate or glycol salicylate as an anti-inflammatory component, and is excellent in pressure-sensitive adhesiveness prevention (excellent skin adhesiveness) and cohesive strength reduction prevention due to sweat. It is an object of the present invention to provide a topically applied transdermal absorption tape having an adhesive layer.
本発明者等は、裏打ち材の上に、合成ゴム系エラストマーからなる感圧性接着剤、抗炎症成分としてサリチル酸メチル又はサリチル酸グリコールを含有するとともに、多孔性金属化合物を配合した感圧性接着剤層を設けて経皮吸収テープ剤となすことによって、該感圧性接着剤層が適用時に汗による接着力の低下を起こさず、保護フィルムとの剥離性に優れ、且つ、裏打ち材からのはみ出しがなく、患部に適用した場合に優れた使い易さを実現することを見出し、本発明を完成した。 The inventors include a pressure-sensitive adhesive layer comprising a synthetic rubber-based elastomer on a backing material, methyl salicylate or glycol salicylate as an anti-inflammatory component, and a porous metal compound. By providing a transdermal absorption tape agent, the pressure-sensitive adhesive layer does not cause a decrease in adhesion due to sweat when applied, has excellent peelability from the protective film, and does not protrude from the backing material, The present invention has been completed by finding that it is easy to use when applied to an affected area.
また前記経皮吸収テープ剤において、多孔性金属化合物として特にケイ酸アルミニウムを採用することによって、さらに好ましくは、感圧性接着剤層中に粘着付与樹脂としてロジン系樹脂及び/又はテルペン樹脂を含有させることによって、前述の汗による接着力の低下、保護フィルムの剥離性、裏打ち材からのはみ出し等に関する改善点をより改良することができることを見出し、本発明を完成した。 In the percutaneous absorption tape agent, particularly by adopting aluminum silicate as the porous metal compound, more preferably, the pressure-sensitive adhesive layer contains a rosin resin and / or a terpene resin as a tackifier resin. As a result, the inventors have found that the above-described improvements in the adhesive strength reduction due to sweat, the peelability of the protective film, and the protrusion from the backing material can be further improved, and the present invention has been completed.
すなわち、本発明は裏打ち材とその上に感圧性接着剤層を設けてなる経皮吸収テープ剤であって、該感圧性接着剤層はスチレン・イソプレン・スチレンブロック共重合体を主成分とし、さらに抗炎症成分としてサリチル酸メチル又はサリチル酸グリコール、並びに、10mL/g以下の見掛比容及び100m2/g以上の比表面積を有する多孔性金属化合
物を含有することを特徴とする、局所適用型経皮吸収テープ剤に関する。
That is, the present invention is a percutaneous absorption tape agent in which a backing material and a pressure-sensitive adhesive layer are provided thereon, and the pressure-sensitive adhesive layer is mainly composed of a styrene / isoprene / styrene block copolymer, Furthermore, it contains a methyl salicylate or a salicylate glycol as an anti-inflammatory component, and a porous metal compound having an apparent specific volume of 10 mL / g or less and a specific surface area of 100 m 2 / g or more. The present invention relates to a skin absorbent tape agent.
また本発明は前記多孔性金属化合物がケイ酸アルミニウム、より好ましくは軽質のケイ酸アルミニウムであることを特徴とする上記の局所適用型経皮吸収テープに関する。
さらに本発明は前記感圧性接着剤層には粘着付与樹脂としてロジン系樹脂及び/又はテルペン樹脂を含有することを特徴とする上記の局所適用型経皮吸収テープに関する。
The present invention also relates to the above-mentioned topical transdermal absorption tape, wherein the porous metal compound is aluminum silicate, more preferably light aluminum silicate.
Furthermore, the present invention relates to the above-mentioned topical transdermal absorption tape, wherein the pressure-sensitive adhesive layer contains a rosin resin and / or a terpene resin as a tackifier resin.
一般に経皮吸収テープ剤は皮膚への適用が容易であり、かつ薬物を持続的に投与するのに適した剤型である。そして感圧性接着剤として合成ゴム系エラストマーを採用することによって、サリチル酸メチル又はサリチル酸グリコールを含有させた場合においても、成分を揮発させることなく経皮吸収テープ剤の形態と為すことができる。
そして本発明によれば、スチレン・イソプレン・スチレンブロック共重合体を主成分とする合成ゴム系エラストマーと多孔性金属化合物を組み合わせることによって、サリチル酸メチル又はサリチル酸グリコールを含有した場合であっても、裏打ち材からの感圧性接
着剤層のはみ出しを防止でき、且つ、汗による感圧性接着剤層の接着力の低下を起こさず、保護フィルムの剥離性に優れた経皮吸収テープ剤と為すことができる。
また好ましくは多孔性金属化合物として特にケイ酸アルミニウムを採用することによって、及び/又は、感圧性接着剤層中に粘着付与樹脂としてロジン系樹脂及び/又はテルペン樹脂を含有させることによって、前述の汗による接着力の低下、保護フィルムの剥離性、裏打ち材からのはみ出し等をさらに改善した経皮吸収テープ剤と為すことができる。
In general, a transdermal absorption tape is easy to apply to the skin and is a dosage form suitable for continuous administration of a drug. By adopting a synthetic rubber-based elastomer as the pressure-sensitive adhesive, even when methyl salicylate or glycol salicylate is contained, it can be made into the form of a transdermal absorption tape without causing the components to volatilize.
According to the present invention, a synthetic rubber elastomer having a styrene / isoprene / styrene block copolymer as a main component and a porous metal compound are combined to form a backing even when methyl salicylate or glycol salicylate is contained. The pressure-sensitive adhesive layer can be prevented from protruding from the material, and the adhesive strength of the pressure-sensitive adhesive layer due to sweat does not decrease, and can be made as a transdermal absorption tape with excellent peelability of the protective film. .
Also preferably, by employing aluminum silicate in particular as the porous metal compound and / or by incorporating a rosin resin and / or terpene resin as a tackifying resin in the pressure sensitive adhesive layer. The transdermal absorption tape can be further improved in terms of adhesive strength reduction, peelability of the protective film, and protrusion from the backing material.
而して、本発明のサリチル酸メチル又はサリチル酸グリコール含有の経皮吸収テープ剤は、患部に長時間貼付しても発汗による接着力低下、特に捲れ、脱落が起きず、且つ裏打ち材からの感圧性接着剤層のはみ出しが起こることなく使用でき、持続的な薬剤の投与と優れた使い勝手の双方が実現可能となる。
加えて、長期保存後の使用においても感圧性接着剤層からの保護フィルムを容易に剥離できるため、優れた保存安定性をも実現可能となる。
Thus, the transdermal absorption tape containing methyl salicylate or glycol of salicylate according to the present invention does not cause a decrease in adhesive strength due to sweating, even if it is applied to the affected area for a long time, and does not cause dripping or dropping, and pressure sensitivity from the backing material. The adhesive layer can be used without protruding, and both continuous administration of the drug and excellent usability can be realized.
In addition, since the protective film from the pressure-sensitive adhesive layer can be easily peeled even after use for a long time, excellent storage stability can be realized.
本発明の経皮吸収テープ剤は、裏打ち材によって保持されている感圧性接着剤層の上に通常その全面を覆うように剥離可能な保護フィルムを貼り合わせてなる経皮吸収テープ剤であり、以下に本発明の各構成要素及びその機能に関してさらに説明する。
なお本発明において「感圧性接着剤層総量基準」とは、合成ゴム系エラストマー、サリチル酸メチル又はサリチル酸グリコール(抗炎症成分)、多孔性金属化合物、所望によりロジン系樹脂及び/又はテルペン樹脂からなる粘着付与樹脂、及びその他の成分(その他の有効成分(薬剤)、軟化剤、無機充填剤、溶解補助剤など)からなる感圧性接着剤層の総量を基準とすることを意味するものとする。
The transdermal absorption tape agent of the present invention is a transdermal absorption tape agent formed by laminating a protective film that can be usually peeled so as to cover the entire surface of the pressure-sensitive adhesive layer held by a backing material, Hereinafter, each component of the present invention and its function will be further described.
In the present invention, “pressure-sensitive adhesive layer total amount standard” means an adhesive composed of a synthetic rubber elastomer, methyl salicylate or glycol salicylate (anti-inflammatory component), a porous metal compound, and optionally a rosin resin and / or a terpene resin. It is meant to be based on the total amount of the pressure-sensitive adhesive layer comprising the imparting resin and other components (other active ingredients (medicine), softener, inorganic filler, solubilizer, etc.).
1)感圧性接着剤層
本発明の経皮吸収テープ剤の構成要素である感圧性接着剤層は、抗炎症成分、合成ゴム系エラストマー、粘着付与樹脂、さらに多孔性金属化合物を必須の成分として含む。
所望により、経皮吸収テープ剤の感圧性接着剤層に一般に用いられるその他の添加剤をさらに含むことができる。
1) Pressure-sensitive adhesive layer The pressure-sensitive adhesive layer, which is a component of the transdermal absorption tape of the present invention, comprises an anti-inflammatory component, a synthetic rubber elastomer, a tackifying resin, and a porous metal compound as essential components. Including.
If desired, it may further contain other additives generally used in the pressure-sensitive adhesive layer of the transdermal absorption tape.
(1)抗炎症成分
本発明の経皮吸収テープ剤の感圧性接着剤層に含まれる抗炎症成分はサリチル酸メチル又はサリチル酸グリコールである。
前記サリチル酸メチル又はサリチル酸グリコールの配合量は、感圧性接着剤層総量基準で好ましくは0.1乃至20質量%、より好ましくは3乃至10質量%であることが望ましい。配合量が過少であると目的とする薬効を十分に得られない場合があり、また、過多であると皮膚刺激を生じたり、或いは凝集力低下などのテープ剤としての物性を損なう場合がある。
(1) Anti-inflammatory component The anti-inflammatory component contained in the pressure-sensitive adhesive layer of the transdermal absorption tape of the present invention is methyl salicylate or glycol salicylate.
The blending amount of the methyl salicylate or glycol salicylate is preferably 0.1 to 20% by mass, more preferably 3 to 10% by mass based on the total amount of the pressure-sensitive adhesive layer. If the blending amount is too small, the intended medicinal effect may not be sufficiently obtained, and if it is excessive, skin irritation may occur or physical properties as a tape agent such as a decrease in cohesive strength may be impaired.
(2)合成ゴム系エラストマー
本発明の経皮吸収テープ剤の感圧性接着剤層に含まれる合成ゴム系エラストマーは、スチレン・イソプレン・スチレンブロック共重合体(以下、SISブロック共重合体という)からなる。
さらに所望により、上記SISブロック共重合体に加えて、その他の合成ゴム系エラストマー、例えばポリイソプレン、ポリイソブチレン、ポリブテンなどを組み合わせて用いることもできる。
(2) Synthetic rubber-based elastomer The synthetic rubber-based elastomer contained in the pressure-sensitive adhesive layer of the transdermal absorption tape of the present invention is derived from a styrene / isoprene / styrene block copolymer (hereinafter referred to as SIS block copolymer). Become.
If desired, in addition to the SIS block copolymer, other synthetic rubber-based elastomers such as polyisoprene, polyisobutylene, and polybutene can be used in combination.
上記合成ゴム系エラストマー、及び所望によりその他の合成ゴム系エラストマーの感圧性接着剤層への配合量は、感圧性接着剤層総量基準で好ましくは10乃至60質量%、より好ましくは20乃至50質量%であることが望ましい。 The blending amount of the synthetic rubber-based elastomer and optionally other synthetic rubber-based elastomers in the pressure-sensitive adhesive layer is preferably 10 to 60% by mass, more preferably 20 to 50% by mass based on the total amount of the pressure-sensitive adhesive layer. % Is desirable.
上記合成ゴム系エラストマー及びその他の合成ゴム系エラストマーの具体的な市販品の例としては、SIS5000(JSR(株)製 SISブロック共重合体)、ニポールIR−2200(日本ゼオン(株)製 ポリイソプレンゴム)、ビスタネックスMML−80(エクソン化学(株)製 ポリイソブチレン)、HV−300(新日本石油化学(株)製 HV−300)などが挙げられ、これらを用いることが好適である。 Specific examples of commercially available synthetic rubber elastomers and other synthetic rubber elastomers include SIS 5000 (SIS block copolymer manufactured by JSR Corporation), Nipol IR-2200 (manufactured by Nippon Zeon Co., Ltd., polyisoprene). Rubber), Vistanex MML-80 (polyisobutylene manufactured by Exxon Chemical Co., Ltd.), HV-300 (HV-300 manufactured by Shin Nippon Petrochemical Co., Ltd.), and the like, which are preferably used.
(3)多孔性金属化合物
本発明の経皮吸収テープ剤の感圧性接着剤層に配合される多孔性金属化合物は、比表面積が大きく且つ見掛比容(嵩高さ)が小さいという特徴を有するものであり、例えば金属化合物からなり、二次凝集粒子を形成する粉体或いは表面から内部にかけて微小多孔構造を有する粒体又は粉体の形態であり得る。
該多孔性金属化合物は、汗等の湿気を吸う吸湿作用を示す一方で、吸湿した際にそれ自体は膨潤しない性質のものであることが必要とされ、本発明においては、特に10mL/g以下の見掛比容、且つ100m2/g以上の比表面積を有する多孔性金属化合物が用い
られる。該多孔性金属化合物の比表面積が100m2/g未満であると汗を十分に吸着す
ることができず接着力の低下につながり、また、見掛比容が10mL/gより大きい、或いは該金属化合物が水を吸収した際に膨潤するものであると、汗を吸着した際に感圧性接着剤層の凝集力を低下させることにつながる。
したがって、これらの条件を満たす前記多孔性金属化合物を感圧性接着剤層へ含有させることにより、時間経過による感圧性接着剤層の裏打ち材(支持体)からのはみ出しを抑制し、且つ皮膚適用時に汗による接着力の低下を防止できる。加えて、保護フィルムとの好適な密着性を保ち、テープ剤の安定化にも寄与する。
上記条件を全て満たす多孔性金属化合物は、合成物ではリン酸アルミニウム、メタケイ酸アルミン酸マグネシウム(例えば、ノイシリンUFL2:富士化学工業(株)製)、ケイ酸アルミニウム(例えば、合成ケイ酸アルミニウム:協和化学工業(株)製)などがあり、天然物ではゼオライトなどがある。
これら多孔性金属化合物はそれぞれ単独で又は2種以上を組み合わせて用いることができ、その配合量は、感圧性接着剤層総量基準で好ましくは0.1乃至30質量%、より好ましくは2乃至20質量%であることが望ましい。配合量が過少であるとテープ剤適用部位の発汗によって生ずるテープ剤の脱落や捲れ等を防ぐことが困難となるだけでなく、テープ剤保存時や適用時に裏打ち材から感圧性接着剤層のはみ出しが起こり、使用感を損なう恐れがある。また、配合量が過多であると皮膚に対する適度なタック性を保持することが困難となり、保護フィルムの剥離性を低下させることにつながる。
(3) Porous metal compound The porous metal compound blended in the pressure-sensitive adhesive layer of the transdermal absorption tape of the present invention has the characteristics that the specific surface area is large and the apparent specific volume (bulk) is small. For example, it may be in the form of a powder made of a metal compound and forming secondary agglomerated particles, or a granule or powder having a microporous structure from the surface to the inside.
The porous metal compound is required to have a hygroscopic action of absorbing moisture such as sweat, but not to swell itself when absorbed, and in the present invention, in particular, 10 mL / g or less. And a porous metal compound having a specific surface area of 100 m 2 / g or more. If the specific surface area of the porous metal compound is less than 100 m 2 / g, sweat cannot be sufficiently adsorbed, resulting in a decrease in adhesive force, and the apparent specific volume is greater than 10 mL / g, or the metal If the compound swells when it absorbs water, it will lead to a decrease in the cohesive force of the pressure-sensitive adhesive layer when sweat is adsorbed.
Therefore, by containing the porous metal compound satisfying these conditions in the pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer is prevented from protruding from the backing material (support) over time, and when applied to the skin. Decrease in adhesive strength due to sweat can be prevented. In addition, suitable adhesiveness with the protective film is maintained, which contributes to the stabilization of the tape agent.
Porous metal compounds that satisfy all of the above conditions are aluminum phosphate, magnesium aluminate metasilicate (for example, Neusilin UFL2: manufactured by Fuji Chemical Industry Co., Ltd.), aluminum silicate (for example, synthetic aluminum silicate: Kyowa). Chemical products), and natural products include zeolite.
These porous metal compounds can be used alone or in combination of two or more, and the blending amount thereof is preferably 0.1 to 30% by mass, more preferably 2 to 20 based on the total amount of the pressure-sensitive adhesive layer. It is desirable that it is mass%. If the amount is too small, not only will it be difficult to prevent the tape agent from falling off or dripping due to sweating at the site where the tape agent is applied, but also the pressure sensitive adhesive layer will protrude from the backing material when storing or applying the tape agent. May occur and the feeling of use may be impaired. Moreover, when there are too many compounding quantities, it will become difficult to maintain the moderate tackiness with respect to skin, and it will lead to reducing the peelability of a protective film.
(4)粘着付与樹脂
前記合成ゴム系エラストマーからなる接着剤に適度な粘着性を付与する粘着付与樹脂としては、脂肪族炭化水素樹脂、脂環族炭化水素樹脂、テルペン樹脂、ロジン系樹脂、テルペンフェノール樹脂、クマロン樹脂、キシレン樹脂、スチレン樹脂などが挙げられる。これらの粘着付与樹脂はそれぞれ単独で又は2種以上を組み合わせて用いることができるが、本発明において、粘着力を向上する目的としては、ロジン系樹脂及び/又はテルペン樹脂を用いることが好ましい。
これら粘着付与樹脂の配合量は、感圧性接着剤層総量基準で好ましくは10乃至70質量%、より好ましくは20乃至50質量%であることが望ましい
(4) Tackifying resin As the tackifying resin for imparting appropriate tackiness to the adhesive comprising the synthetic rubber elastomer, aliphatic hydrocarbon resins, alicyclic hydrocarbon resins, terpene resins, rosin resins, terpenes Examples thereof include phenol resin, coumarone resin, xylene resin, and styrene resin. These tackifier resins can be used alone or in combination of two or more. In the present invention, it is preferable to use a rosin resin and / or a terpene resin for the purpose of improving the adhesive force.
The compounding amount of these tackifying resins is preferably 10 to 70% by mass, more preferably 20 to 50% by mass based on the total amount of the pressure-sensitive adhesive layer.
(5)その他添加剤
本発明の経皮吸収テープ剤の感圧性接着剤層には、上記成分の他に、その他の有効成分(薬剤)、さらには、ジブチルヒドロキシトルエン等の酸化防止剤、流動パラフィン及び中鎖脂肪酸グリセリンエステル等の軟化剤、炭酸カルシウム、酸化亜鉛及び二酸化チタン等の無機充填剤、並びに、クロタミトン及びプロピレングリコール等の溶解補助剤(経皮
吸収促進剤)などをさらに含むことができる。
本発明の経皮吸収テープ剤の適用時に冷感効果や温感効果を得るために、L−メントール、DLメントール、DL−カンフル、D−カンフル、ハッカ油、ユーカリ油、カプサイシン、トウガラシ抽出物及びノニル酸ワニリルアミド等の刺激効果を有する成分を添加することができる。これらはそれぞれ単独で、又は2種以上を組み合わせて用いることができる。
これら刺激効果を有する成分の配合量に特に制限はないが、感圧性接着剤層全質量基準で、L−メントール、DL−メントール、DL−カンフル、D−カンフル、ハッカ油及びユーカリ油の場合、好ましくは合計0.01乃至30質量%、より好ましくは合計0.1乃至15質量%にて配合することが望ましい。また、カプサイシン、トウガラシ抽出物及びノニル酸ワニリルアミドの場合には、好ましくは合計0.001乃至5質量%、より好ましくは合計0.01乃至1質量%にて配合することが好ましい。
さらに、本発明の経皮吸収テープ剤はその他の有効成分(薬剤)として、サリチル酸メチル及びサリチル酸グリコール以外の抗炎症成分、例えば、フルルビプロフェン、ケトプロフェン、インドメタシン、ジクロロフェナックなどを含有することもできる。
(5) Other additives In the pressure-sensitive adhesive layer of the transdermal absorption tape of the present invention, in addition to the above-mentioned components, other active ingredients (drugs), further, antioxidants such as dibutylhydroxytoluene, fluidity It may further contain softeners such as paraffin and medium chain fatty acid glycerin esters, inorganic fillers such as calcium carbonate, zinc oxide and titanium dioxide, and solubilizing agents (transdermal absorption enhancers) such as crotamiton and propylene glycol. it can.
L-menthol, DL menthol, DL-camphor, D-camphor, mint oil, eucalyptus oil, capsaicin, capsicum extract and Components having a stimulating effect such as nonylic acid vanillylamide can be added. These may be used alone or in combination of two or more.
There are no particular restrictions on the amount of ingredients having these stimulating effects, but in the case of L-menthol, DL-menthol, DL-camphor, D-camphor, mint oil and eucalyptus oil based on the total mass of the pressure-sensitive adhesive layer, The total content is preferably 0.01 to 30% by mass, more preferably 0.1 to 15% by mass. In the case of capsaicin, pepper extract and nonylic acid vanillylamide, it is preferably added in a total amount of 0.001 to 5% by mass, more preferably in a total of 0.01 to 1% by mass.
Furthermore, the transdermal absorption tape preparation of the present invention contains anti-inflammatory components other than methyl salicylate and glycol salicylate as other active ingredients (drugs), such as flurbiprofen, ketoprofen, indomethacin, dichlorophenac and the like. You can also.
2)裏打ち材
本発明の経皮吸収テープ剤は、抗炎症成分(サリチル酸メチルなど)、合成ゴム系エラストマー(SISブロック共重合体)及び多孔性金属化合物(ケイ酸アルミニウムなど)、粘着付与樹脂(ロジン系樹脂及び/又はテルペン樹脂)、さらに必要に応じてその他添加剤を配合して得られた混合物(感圧性接着剤層)を適当な保護フィルム上に塗布し、その上から適当な裏打ち材を貼り合わせ、必要により適当な大きさに切断して、最終的な製品とすることができる。
上記裏打ち材は、患部への追従性ならびに貼付時の自己支持性などを加味して、柔軟性、伸縮性ならびに厚さなどを考慮し、目的に応じて適宜選択する。
このような支持体として、ポリエステルフィルム、ポリエチレンフィルム、ポリプロピレンフィルム、ポリ塩化ビニルフィルム、ポリカーボネートフィルム、ポリウレタンフィルム、ポリビニルアルコールフィルム、エチレンビニルアセテート共重合体フィルム及びセロハンフィルムなどのプラスチックフィルム、発泡体、ポリエステル繊維、ポリエチレン繊維及びポリプロピレン繊維などからなる不織布、織布及び編布などの布基材、これらの積層体などが挙げられる。これらの中でも伸縮性の点では不織布、織布及び編布が、使い勝手のよさの面では透明性を有するプラスチックフィルムが好ましい。
用いる裏打ち材の厚さは、不織布、織布及び編布では好ましくは100μm乃至1000μm、より好ましくは400μm乃至700μmである。また、プラスチックフィルムであれば好ましくは10μm乃至200μm、より好ましくは30μm乃至100μmである。
また上記裏打ち材は、所望により撥水処理や、感圧性接着剤層との密着性を改善する目的にてプライマー処理を施すこともできる。
2) Backing material The percutaneous absorption tape agent of the present invention comprises an anti-inflammatory component (such as methyl salicylate), a synthetic rubber elastomer (SIS block copolymer), a porous metal compound (such as aluminum silicate), and a tackifier resin (such as aluminum silicate). (Rosin resin and / or terpene resin) and, if necessary, a mixture (pressure-sensitive adhesive layer) obtained by blending other additives on a suitable protective film, and then a suitable backing material. And can be cut into an appropriate size as necessary to obtain a final product.
The backing material is appropriately selected according to the purpose in consideration of flexibility, stretchability, thickness, etc. in consideration of followability to the affected area and self-supporting property at the time of application.
As such a support, plastic films such as polyester film, polyethylene film, polypropylene film, polyvinyl chloride film, polycarbonate film, polyurethane film, polyvinyl alcohol film, ethylene vinyl acetate copolymer film and cellophane film, foam, polyester Examples thereof include non-woven fabrics made of fibers, polyethylene fibers and polypropylene fibers, cloth base materials such as woven fabrics and knitted fabrics, and laminates thereof. Among these, non-woven fabrics, woven fabrics and knitted fabrics are preferable in terms of stretchability, and plastic films having transparency are preferable in terms of ease of use.
The thickness of the backing material to be used is preferably 100 μm to 1000 μm, more preferably 400 μm to 700 μm for nonwoven fabrics, woven fabrics and knitted fabrics. In the case of a plastic film, the thickness is preferably 10 μm to 200 μm, more preferably 30 μm to 100 μm.
Further, the backing material can be subjected to a primer treatment for the purpose of improving water-repellent treatment or adhesion to the pressure-sensitive adhesive layer as desired.
3)保護フィルム
本発明の経皮吸収テープ剤に用いられる剥離可能な保護フィルム、感圧性接着剤層からの容易な剥離性、通気性、通水性ならびに柔軟性などを考慮して、目的に応じて適宜選択する。好ましくはポリエチレン、ポリプロピレン、ポリエステル及びセルロース等の高分子材料からなるフィルムが使用され、剥離性を高めるためにフィルム表面をシリコン処理、又はフルオロカーボン処理して、或いは、フィルム中に周知の添加剤を添加して用いることもできる。
3) Protective film According to the purpose in consideration of the peelable protective film used for the transdermal absorption tape of the present invention, easy peelability from the pressure-sensitive adhesive layer, air permeability, water permeability and flexibility. Select as appropriate. Preferably, a film made of a polymer material such as polyethylene, polypropylene, polyester and cellulose is used, and the surface of the film is treated with silicon or fluorocarbon to increase the peelability, or a known additive is added to the film. It can also be used.
4)経皮吸収テープ剤の製法
本発明の経皮吸収テープ剤は、一般的なテープ製剤の製造方法であるカレンダー塗工法より製造することができる。
カレンダー塗工法では、まずはじめに、合成ゴム系エラストマー(SISブロック共重合体及び所望によりその他の合成ゴム系エラストマーを含む)に多孔性金属化合物及び粘着付与樹脂を加えて混練を行う。次に、必要に応じて軟化剤を加えてさらに混練を行い、最後に温度を下げてから抗炎症成分(サリチル酸メチルなど)を加えて混練を行う。
上記手順にて得られた混練物を、たとえばシリコン処理したポリエステルフィルム(保護フィルム)上に均一に塗工し、感圧性接着剤層を完成させ、該層の上に裏打ち材をラミネートすることにより、経皮吸収テープ剤を得ることができる。裏打ち材の種類によっては、裏打ち材に感圧性接着剤層を形成した後、接着剤層の表面に保護フィルムをラミネートしても良い。
上記感圧性接着剤層は、通常5乃至500μm、好ましくは50乃至300μm、より好ましくは100乃至200μmの厚さで塗工することが好ましい。
このようにして得られた経皮吸収テープ剤は、使用用途に応じて楕円形、円形、正方形、長方形などの形状に適宜裁断する。
4) Manufacturing method of transdermal absorption tape agent The transdermal absorption tape agent of this invention can be manufactured from the calendar coating method which is a manufacturing method of a general tape formulation.
In the calender coating method, first, a porous metal compound and a tackifying resin are added to a synthetic rubber elastomer (including a SIS block copolymer and optionally other synthetic rubber elastomer) and kneaded. Next, if necessary, a softener is added and further kneaded. Finally, the temperature is lowered, and then an anti-inflammatory component (such as methyl salicylate) is added and kneaded.
For example, the kneaded product obtained by the above procedure is uniformly applied onto a silicon-treated polyester film (protective film) to complete a pressure-sensitive adhesive layer, and a backing material is laminated on the layer. A transdermal absorption tape can be obtained. Depending on the type of the backing material, a pressure-sensitive adhesive layer may be formed on the backing material and then a protective film may be laminated on the surface of the adhesive layer.
The pressure-sensitive adhesive layer is preferably applied in a thickness of usually 5 to 500 μm, preferably 50 to 300 μm, more preferably 100 to 200 μm.
The percutaneous absorption tape thus obtained is appropriately cut into an oval shape, a circular shape, a square shape, a rectangular shape or the like according to the intended use.
以下、実施例を挙げて、本発明を更に詳しく説明するが、本発明は、これら実施例に限定されるものでない。
なお実施例中、「%」「部」とはそれぞれ「質量%」「質量部」を意味するものである。
EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in more detail, this invention is not limited to these Examples.
In the examples, “%” and “parts” mean “% by mass” and “parts by mass”, respectively.
以下の実施例、比較例で用いた合成ゴム系エラストマー、粘着付与樹脂、多孔性金属化合物、酸化防止剤、軟化剤、保護フィルム及び裏打ち材を以下の表1に、用いた多孔性金属化合物の比表面積及び見掛比容を表2に、又、配合割合を表3に示す。
[経皮吸収テープ剤の作成]
表1の各物質及び表3の配合割合にて、カレンダー塗工法により、厚さ180μmの感圧性接着剤層を有する実施例1乃至7及び比較例1乃至5の経皮吸収テープ剤を作製した。
[Preparation of transdermal absorption tape]
The percutaneous absorption tapes of Examples 1 to 7 and Comparative Examples 1 to 5 having a pressure-sensitive adhesive layer having a thickness of 180 μm were prepared by the calendar coating method at the blending ratios of the substances in Table 1 and Table 3. .
[ヒト皮膚接着性]
前述の通りに作製した経皮吸収テープ剤を、それぞれ28mmφの円形に打ち抜き、この円形テープ剤を肩部に貼付した。約6時間経過した後のテープ剤の浮きを目視にて観察し、その後、剥離した時の皮膚への付着性を評価した。なお付着性は、剥離時にしっかりと皮膚に良く付いていたものを良好(◎)、若干悪いものを(△)、悪いものを(×)で評価した。
評価結果を表4に示す。
[Human skin adhesion]
The percutaneous absorption tapes prepared as described above were each punched into a circle of 28 mmφ, and this circular tape was stuck on the shoulder. After about 6 hours, the tape was lifted visually and then evaluated for adhesion to the skin when peeled. The adhesion was evaluated as good (() for those firmly attached to the skin at the time of peeling, (△) for slightly bad, and (×) for poor.
The evaluation results are shown in Table 4.
[保護フィルム剥離性]
前述の通りに作製した経皮吸収テープ剤を、それぞれアルミ包装した状態で40℃、75%RH条件下で6ヶ月間放置した。放置後、保護フィルムの感圧性接着剤層からの剥離性を評価した。
評価結果を表4に示す。
[Protective film peelability]
The percutaneous absorption tapes prepared as described above were allowed to stand for 6 months under conditions of 40 ° C. and 75% RH, respectively, in a state of aluminum packaging. After leaving, the peelability of the protective film from the pressure-sensitive adhesive layer was evaluated.
The evaluation results are shown in Table 4.
[感圧性接着剤層の凝集力]
前述の通りに作製した経皮吸収テープ剤を、それぞれ25mm幅に裁断し、ステンレスパネルに貼付した後、40℃、75%RH条件下で500gの重りを架けて30分間放置した。放置後、感圧性接着剤層からの裏打ち材のずれを測定し、実用上好適な凝集力であるかを評価した。
評価結果を表4に示す。
[Cohesive strength of pressure-sensitive adhesive layer]
The percutaneous absorption tapes prepared as described above were each cut to a width of 25 mm and affixed to a stainless steel panel, and then left under a condition of 40 ° C. and 75% RH with a 500 g weight for 30 minutes. After being allowed to stand, the deviation of the backing material from the pressure-sensitive adhesive layer was measured to evaluate whether or not the cohesive force was suitable for practical use.
The evaluation results are shown in Table 4.
[評価の結果]
表4に示す結果より判るように、本発明の経皮吸収テープ剤は汗による接着力の低下防止に優れ、剥離した時の皮膚への付着性も良く、長期経過後の保護フィルムの剥離性に優れ、並びに該粘着テープ剤の感圧性接着剤層の凝集力も優れるものであった。
[Evaluation results]
As can be seen from the results shown in Table 4, the percutaneous absorption tape preparation of the present invention is excellent in preventing a decrease in adhesive force due to sweat, has good adhesion to the skin when peeled, and peelability of the protective film after a long period of time. And the cohesive strength of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape was also excellent.
Claims (2)
金属化合物がケイ酸アルミニウムであることを特徴とする、局所適用型経皮吸収テープ剤。 A percutaneous absorption tape agent comprising a backing material and a pressure-sensitive adhesive layer provided thereon, the pressure-sensitive adhesive layer comprising a styrene / isoprene / styrene block copolymer as a main component, and further as an anti-inflammatory component methyl salicylate or glycol salicylate, and contains a porous metal compound having the following apparent specific volume and 100 m 2 / g or more specific surface area of 10 mL / g, the porous
A topical transdermal absorption tape, wherein the metal compound is aluminum silicate .
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JP5698018B2 (en) * | 2011-02-02 | 2015-04-08 | 日東電工株式会社 | Patches and patch preparations |
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