US20070196455A1 - Crosslinkable pressure-sensitive adhesive for skin - Google Patents
Crosslinkable pressure-sensitive adhesive for skin Download PDFInfo
- Publication number
- US20070196455A1 US20070196455A1 US10/593,242 US59324205A US2007196455A1 US 20070196455 A1 US20070196455 A1 US 20070196455A1 US 59324205 A US59324205 A US 59324205A US 2007196455 A1 US2007196455 A1 US 2007196455A1
- Authority
- US
- United States
- Prior art keywords
- copolymer
- skin
- sensitive adhesive
- parts
- meth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 110
- 229920001577 copolymer Polymers 0.000 claims abstract description 155
- 239000000203 mixture Substances 0.000 claims abstract description 88
- 238000004519 manufacturing process Methods 0.000 claims abstract description 71
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000000470 constituent Substances 0.000 claims abstract description 38
- 239000002904 solvent Substances 0.000 claims abstract description 37
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920006243 acrylic copolymer Polymers 0.000 claims abstract description 23
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 21
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 20
- 239000002537 cosmetic Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 33
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 19
- 239000004014 plasticizer Substances 0.000 claims description 19
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- 230000008569 process Effects 0.000 claims description 8
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- 238000004090 dissolution Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 25
- 238000003860 storage Methods 0.000 abstract description 10
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- 230000000052 comparative effect Effects 0.000 description 24
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- 230000001070 adhesive effect Effects 0.000 description 15
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- 239000003795 chemical substances by application Substances 0.000 description 13
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 12
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- 239000003431 cross linking reagent Substances 0.000 description 11
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- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 10
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- 238000006116 polymerization reaction Methods 0.000 description 9
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- XIQVNETUBQGFHX-UHFFFAOYSA-N Ditropan Chemical compound C=1C=CC=CC=1C(O)(C(=O)OCC#CCN(CC)CC)C1CCCCC1 XIQVNETUBQGFHX-UHFFFAOYSA-N 0.000 description 7
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 7
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 description 6
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- 239000003505 polymerization initiator Substances 0.000 description 6
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 description 5
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- 238000010992 reflux Methods 0.000 description 4
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- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 3
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- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 239000003655 absorption accelerator Substances 0.000 description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
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- 238000011156 evaluation Methods 0.000 description 3
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- 239000000194 fatty acid Substances 0.000 description 3
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- DKYWVDODHFEZIM-UHFFFAOYSA-N ketoprofen Chemical compound OC(=O)C(C)C1=CC=CC(C(=O)C=2C=CC=CC=2)=C1 DKYWVDODHFEZIM-UHFFFAOYSA-N 0.000 description 3
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- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
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- 229960005205 prednisolone Drugs 0.000 description 1
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- 229960001807 prilocaine Drugs 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
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- 235000020944 retinol Nutrition 0.000 description 1
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- QGNJRVVDBSJHIZ-QHLGVNSISA-N retinyl acetate Chemical compound CC(=O)OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C QGNJRVVDBSJHIZ-QHLGVNSISA-N 0.000 description 1
- 235000019173 retinyl acetate Nutrition 0.000 description 1
- 239000011770 retinyl acetate Substances 0.000 description 1
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- 230000018040 scab formation Effects 0.000 description 1
- 230000037307 sensitive skin Effects 0.000 description 1
- 231100000245 skin permeability Toxicity 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000021 stimulant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000011117 substance-related disease Diseases 0.000 description 1
- 229940120904 succinylcholine chloride Drugs 0.000 description 1
- YOEWQQVKRJEPAE-UHFFFAOYSA-L succinylcholine chloride (anhydrous) Chemical compound [Cl-].[Cl-].C[N+](C)(C)CCOC(=O)CCC(=O)OCC[N+](C)(C)C YOEWQQVKRJEPAE-UHFFFAOYSA-L 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229960002494 tetracaine hydrochloride Drugs 0.000 description 1
- BORJONZPSTVSFP-UHFFFAOYSA-N tetradecyl 2-hydroxypropanoate Chemical compound CCCCCCCCCCCCCCOC(=O)C(C)O BORJONZPSTVSFP-UHFFFAOYSA-N 0.000 description 1
- AWLILQARPMWUHA-UHFFFAOYSA-M thiopental sodium Chemical compound [Na+].CCCC(C)C1(CC)C(=O)NC([S-])=NC1=O AWLILQARPMWUHA-UHFFFAOYSA-M 0.000 description 1
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- 229960002961 ticlopidine hydrochloride Drugs 0.000 description 1
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- GYDJEQRTZSCIOI-LJGSYFOKSA-N tranexamic acid Chemical compound NC[C@H]1CC[C@H](C(O)=O)CC1 GYDJEQRTZSCIOI-LJGSYFOKSA-N 0.000 description 1
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- 239000011653 vitamin D2 Substances 0.000 description 1
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Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/043—Mixtures of macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8158—Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
- A61K9/7023—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
- A61K9/703—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
- A61K9/7038—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer
- A61K9/7046—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds
- A61K9/7053—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds, e.g. polyvinyl, polyisobutylene, polystyrene
- A61K9/7061—Polyacrylates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/58—Adhesives
- A61L15/585—Mixtures of macromolecular compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
Definitions
- the present invention relates to a crosslinkable pressure-sensitive adhesive for skin, to a crosslinkable pressure-sensitive adhesive sheet for skin employing it, to a composition for production of the crosslinkable pressure-sensitive adhesive for skin and to a process for production of the crosslinkable pressure-sensitive adhesive for skin.
- Pressure-sensitive adhesive sheets for skin in general, must reliably adhere for about 24 hours after being attached to skin and must also adhere without peeling during perspiration and bathing. Also for removal, they must be peelable with a degree of force that does not cause pain, and if the adhesion is stronger than necessary it can result in plucking of hairs and peeling of the corneum, as well as mechanical skin irritation by pulling of the skin. Consequently, this creates erythema that may persist for several days even after peeling, and therefore it is necessary to minimize this inconvenience. Moreover, it is important that no pressure-sensitive adhesive remain on the skin surface after the pressure-sensitive adhesive sheet has been removed from the skin.
- Crosslinking of acrylic pressure-sensitive adhesives has been commonly employed in the prior art in pressure-sensitive adhesives for skin in order to improve cohesion of the pressure-sensitive adhesives.
- Such crosslinking is achieved almost entirely by using the acrylic acid in an acrylic copolymer, but its drawbacks include the facts that (1) the adhesion is excessively strong or chemical activity of the acrylic acid causes significant skin irritation, (2) in percutaneous absorption preparations containing drugs, the acrylic acid and basic drug interact and impede migration of the drug from the pressure-sensitive adhesive into the skin, thereby reducing the percutaneous absorption, and (3) polyisocyanate used as the crosslinking agent is highly active and often reacts with drugs, thereby impairing drug stability.
- an acrylic acid-free pre-crosslinked pressure-sensitive adhesive which comprises 45 mol % 2-ethylhexyl acrylate, 20-55 mol % vinylpyrrolidone and no greater than 35 mol % of an acrylic acid ester with 3-12 carbon atoms in the ester portion, as well as 0.005-0.5 wt % of a polyfunctional monomer with respect to the weight of the entire monomer.
- Japanese Patent Laid-open (Kohyo) Publication No. 2002-535475 proposes a method wherein an acrylic-based pressure-sensitive adhesive containing diacetoneacrylamide, and a plasticizer, are mixed with a polyamine such as adipic acid dihydrazide or hexanediamine, the mixture is coated and then the solvent is heated and dried for crosslinking.
- a polyamine such as adipic acid dihydrazide or hexanediamine
- the drawbacks of this method are the following: (1) Mixture of the low-molecular polyamine such as adipic acid dihydrazide or hexanediamine with the pressure-sensitive adhesive solution results in a coating mixture that gels within several hours and becomes impossible to coat.
- Low molecular polyamines such as adipic acid dihydrazide and hexanediamine crosslink the diacetoneacrylamide-containing acrylic-based pressure-sensitive adhesive when no drug is present, but in the presence of a drug they react therewith or the drug often interferes, thereby preventing crosslinking.
- Adipic acid dihydrazide has low organic solvent solubility, and therefore must be used as a solution in water for addition to the coating solution. Consequently, its use in a large amount promotes precipitation of polymers and renders handling inconvenient.
- Hydrazine compounds such as adipic acid dihydrazide are absorbed through the skin and are indicated as a toxicity risk, for which reason they have been unsuitable as additives for pressure-sensitive adhesives on skin.
- Patent document 1 Japanese Patent Laid-open (Kokai) Publication SHO No. 61-100520
- Patent document 2 Japanese Patent Publication No. 2700835
- Patent document 3 Japanese Patent Publication No. 3014188
- Patent document 4 Japanese Patent Laid-open (Kohyo) Publication No. 2002-535475
- the crosslinkable pressure-sensitive adhesive for skin of the invention is formed by 100 parts by weight of an acrylic copolymer (copolymer A) comprising a (meth)acrylic acid alkyl ester as the main constituent component and 3-45 wt % diacetoneacrylamide as an essential constituent component, and containing no free carboxyl groups, and 0.1-30 parts by weight of an acrylic copolymer (copolymer B) comprising a (meth)acrylic acid alkyl ester as the main constituent component and a primary amino group and/or carboxyhydrazide group on a side chain, and containing no free carboxyl groups.
- the primary amino group and/or carboxyhydrazide on the side chain of copolymer B participates in crosslinking reaction with the carbonyl group of the diacetoneacrylamide in copolymer A, and it therefore functions as a crosslinking agent as well as a constituent component of the pressure-sensitive adhesive.
- a crosslinking agent as well as a constituent component of the pressure-sensitive adhesive.
- a first example of copolymer B is an acrylic copolymer obtained by copolymerizing a (meth)acrylic acid alkyl ester as the main constituent component with a (meth)acrylic monomer having a primary amino group on a side chain.
- a second example of copolymer B is an acrylic copolymer obtained by copolymerizing a (meth) acrylic acid alkyl ester as the main constituent component with (meth) acrylic acid, and then reacting the free carboxyl group in the obtained copolymer with an imine, diamine and/or dicarboxylic acid dihydrazide.
- a third example of copolymer B is an acrylic copolymer obtained by copolymerizing a (meth) acrylic acid alkyl ester as the main constituent component with diacetoneacrylamide, and then reacting the carbonyl group in the obtained copolymer with a diamine and/or dicarboxylic acid dihydrazide.
- the crosslinkable pressure-sensitive adhesive for skin of the invention which is formed on a sheet-like support is used as a medical patch.
- the crosslinkable pressure-sensitive adhesive sheet for skin may be manufactured by dissolving 100 parts by weight of copolymer A and 0.1-30 parts by weight of copolymer B in a solvent, and then evaporating off the solvent by heat according to a publicly known method. In this process, 25-200 parts by weight of a plasticizer with respect to 100 parts by weight of copolymer A, or a percutaneous absorbing medical component and/or cosmetic ingredient, percutaneous absorption accelerator, aromatic or the like may also be added.
- the crosslinkable pressure-sensitive adhesive for skin of the invention is produced by first dissolving copolymer A and copolymer B in a solvent and evaporating off the solvent by heat according to a publicly known method. Because copolymer A and copolymer B undergo mild crosslinking reaction in the solvent, the solution cannot be stored for long periods. However, by adding a volatile ketone such as acetone or butanone to the solution at 5.0 wt % with respect to the total solvent, it is possible to prevent crosslinking reaction during storage and thus allow storage for prolonged periods.
- a volatile ketone such as acetone or butanone
- the present invention therefore provides a composition for production of a crosslinkable pressure-sensitive adhesive for skin capable of long-term storage, comprising copolymer A and copolymer B dissolved in a solvent comprising a volatile ketone such as acetone or butanone.
- a crosslinkable pressure-sensitive adhesive for skin that has satisfactory adhesion and release properties for skin and low irritation to skin without using low molecular crosslinking agents, and a pressure-sensitive adhesive sheet for skin suitable for medical or cosmetic use.
- a composition for production of a crosslinkable pressure-sensitive adhesive for skin that is stable even with prolonged storage.
- the crosslinkable pressure-sensitive adhesive for skin of the invention has the following features. (1) Since copolymer A does not contain acrylic acid, does not have the excessively strong cohesion of acrylic acid-based pressure-sensitive adhesives and produces no carboxylic acid-induced skin irritation, it is therefore suitable for adhesion to skin.
- the basic drug When using a drug, the basic drug usually interacts with the acrylic acid in the acrylic acid-containing pressure-sensitive adhesive resulting in impaired stability or lowered percutaneous absorption property, but since the pressure-sensitive adhesive of the invention contains no acrylic acid such inconveniences do not arise. (3) Because a large amount of isocyanate-based crosslinking agent is not used as the crosslinking agent, there is no loss of stability due to reaction with the drug.
- FIG. 1 is a graph showing the results of evaluating percutaneous absorption of oxybutynin using rat skin.
- FIG. 2 is a graph showing the results of evaluating percutaneous absorption of tulobuterol using rat skin.
- the (meth) acrylic acid alkyl ester of the acrylic copolymer (copolymer A) comprising a (meth)acrylic acid alkyl ester as the main constituent component and 3-45 wt % diacetoneacrylamide as an essential constituent component, and containing no free carboxyl groups
- butyl (meth)acrylate isobutyl (meth)acrylate, hexyl acrylate, octyl acrylate, 2-ethylhexyl (meth)acrylate, isooctyl (meth)acrylate and decyl (meth)acrylate, any of which may be used alone or in combinations.
- the content of the diacetoneacrylamide as the essential constituent component of copolymer A is 3-45 wt %, preferably 8-40 wt %, and more preferably 10-30 wt %. Below this lower limit, the crosslinking may not occur to a sufficient degree resulting in poor cohesion, and above this upper limit the cohesion will be too strong and lower the adhesion.
- Copolymer A may also be copolymerized with 1.0-20 wt % of a polar monomer (for example, 2-vinylpyrrolidone, vinyl acetate, acrylamide or the like) in order to increase the solubility of the medical component or cosmetic ingredient in the pressure-sensitive adhesive.
- a polar monomer for example, 2-vinylpyrrolidone, vinyl acetate, acrylamide or the like
- Copolymer A can usually be prepared by solution polymerization of the required constituent components in the presence of a polymerization initiator.
- the polymerization reaction conditions may be appropriately selected primarily depending on the types of constituent components.
- ethyl acetate or another common polymerization solvent is added to a prescribed amount of the required constituent components, and reaction is conducted in a nitrogen atmosphere at 70-90° C. for 8-40 hours in a reactor equipped with a stirrer and a cooling reflux apparatus, in the presence of a polymerization initiator such as an azobis compound or peroxide.
- the constituent components and the solvent may be introduced at once or in appropriate portions.
- the polymerization initiator is preferably introduced in appropriate portions depending on progression of the reaction.
- azobis-based polymerization initiators there may be mentioned 2,2′-azobis-isobutyronitrile, 1,1′-azobis(cyclohexane-1-carbonitrile) and 2,2′-azobis-(2,4-dimethylvaleronitrile), and as examples of peroxide-based polymerization initiators there may be mentioned lauroyl peroxide, benzoyl peroxide and di(tert-butyl) peroxide.
- the acrylic copolymer (copolymer B) comprising a (meth)acrylic acid alkyl ester as the main constituent component and a primary amino group and/or carboxyhydrazide group on a side chain, and containing no free carboxyl groups, crosslinks with copolymer A by reaction with the diacetoneacrylamide ketone groups of copolymer A, while also serving as a constituent component of the crosslinkable pressure-sensitive adhesive for skin.
- the copolymer B may be prepared by a known process. The following processes may be mentioned as examples.
- the first example of a preparation process involves using a (meth)acrylic acid alkyl ester such as butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate or the like as the main constituent component and copolymerizing it with a monomer having a primary amino group on a side chain such as aminoethyl (meth)acrylate by an ordinary method.
- the copolymer obtained in this manner has a free primary amino group on a side chain.
- the second example of a preparation process involves using a (meth)acrylic acid alkyl ester such as butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate or the like as the main constituent component and copolymerizing it with (meth) acrylic acid by an ordinary method, and then modifying the carboxyl groups of the obtained copolymer using an imine, diamine and/or dicarboxylic acid dihydrazide.
- the apparatus, solvent, initiator and reaction conditions used for polymerization of the copolymer may be the same as for copolymer A.
- imines for modification of the obtained copolymer there may be mentioned alkyleneimines such as ethyleneimine and propyleneimine, with ethyleneimine being particularly preferred.
- diamines there may be mentioned straight-chain alkylenediamines such as ethylenediamine, propylenediamine, butylenediamine, pentanediamine and hexanediamine, and cycloalkylenediamines such as cyclohexyldiamine, with hexanediamine being particularly preferred.
- dicarboxylic acid dihydrazides there may be mentioned glutaric acid dihydrazide, adipic acid dihydrazide and pimelic acid dihydrazide, with adipic acid dihydrazide being particularly preferred.
- imines, diamines and dicarboxylic acid dihydrazides may be used alone, or two or more components may be used in admixture.
- ester bonds are formed with the carboxyl groups in the copolymer, producing free primary amino groups on the side chains.
- the carboxyl groups in the copolymer form acid amide bonds with one of the amino of the diamine and/or dicarboxylic acid hydrazide and/or carboxylic acid dihydrazide groups, producing primary amino groups and/or carboxyhydrazide groups on side chains.
- the third example of a preparation process is a process of copolymerizing a (meth)acrylic acid alkyl ester with diacetoneacrylamide, and then reacting the carbonyl groups in the obtained copolymer with a diamine and/or dicarboxylic acid dihydrazide.
- the diamine and dicarboxylic acid dihydrazide used in the process may be the same as described for the second preparation process example. These may be used alone, or two or more components may be used in admixture.
- the carbonyl group of the diacetoneacrylamide in the copolymer covalently bonds with one of the amino groups and/or carboxylic acid hydrazide group of the diamine and/or dicarboxylic acid dihydrazide, producing free primary amino groups and/or carboxylic acid hydrazide groups on side chains.
- copolymer B processes for production of copolymer B are merely for illustration and are not intended to be restrictive. Any method may be employed to produce the acrylic copolymer comprising a (meth)acrylic acid alkyl ester as the main constituent component and a primary amino group and/or carboxyhydrazide group on a side chain, and containing no free carboxyl groups.
- the copolymer B obtained in this manner may be purified if necessary to remove the unreacted imine, diamine and dicarboxylic acid dihydrazide prior to use.
- the copolymer B Since it is important for the copolymer B to dissolve in the same solvent as the copolymer A and have high compatibility therewith, it must comprise a (meth)acrylic acid alkyl ester as the main constituent component.
- the molecular weight is preferably 2000 or greater in order to exhibit properties as a polymer crosslinking agent. If the molecular weight is less than 2000, the difference in performance compared to low molecular polyamines will be minimal and the effect of the invention will not be exhibited.
- the primary amino group and/or carboxyhydrazide group in copolymer B must be present at a density of at least 2, and preferably 3, per molecular chain of copolymer B in order to exhibit a suitable crosslinking property with copolymer A.
- the primary amino group and/or carboxyhydrazide group in copolymer B are also preferably included at a density of one per 5-100 molecular chains of the (meth) acrylic acid ester comonomer. If the proportion of addition of copolymer B with respect to copolymer A is too low, the reinforcing effect of the addition on cohesion will be not be readily exhibited, and if it is too large the adhesion will be reduced, and therefore copolymer B is added at 0.1-30 parts by weight and preferably 0.3-20 parts by weight with respect to 100 parts by weight of copolymer A.
- copolymer A by copolymer B according to the invention occurs as carbonyl groups of the diacetoneacrylamide in copolymer A form covalent bonds by dehydration reaction with the free primary amino groups and/or carboxylic acid hydrazide groups on the side chains of copolymer B.
- the pressure-sensitive adhesive sheet for skin is constructed by laminating a pressure-sensitive adhesive layer made of a crosslinkable pressure-sensitive adhesive for skin on at least one side of a sheet-like support, and it may be suitably used as a pressure-sensitive adhesive sheet for skin, for adhesive plaster, dressings and the like. Medical and/or cosmetic ingredients may also be added to produce percutaneous absorption preparations, cosmetic patches and the like.
- the support for the pressure-sensitive adhesive sheet for skin is preferably soft and impermeable or only semipermeable to drugs, and for example, there may be mentioned resin films such as polyethylene, ethylene-vinyl acetate copolymer, ethylene-vinyl acetate-carbon monoxide copolymer, ethylene-butyl acrylate-carbon monoxide copolymer, nylon, polyethylene terephthalate and polybutylene terephthalate, as well as aluminum sheets, which may be used as laminated sheets or as laminates with woven fabrics or nonwoven fabrics.
- the support may be subjected to surface treatment such as corona treatment or plasma discharge treatment, or to anchor coat treatment with an anchoring agent.
- the crosslinkable pressure-sensitive adhesive for skin of the invention may also include a plasticizer. Addition of a plasticizer can further reduce irritation of the skin by the crosslinkable pressure-sensitive adhesive for skin, and can improve percutaneous absorption of a drug impregnated therein.
- the plasticizer is preferably added at 25-200 parts by weight to 100 parts by weight of copolymer A. If the amount is less than 25 parts by weight the intended effect will not be easily achieved, and if it is greater than 200 parts by weight, the pressure-sensitive adhesive will tend to lack cohesion even with crosslinking as described hereunder.
- plasticizers there may be mentioned fatty acid esters of monohydric alcohols such as cetyl octanoate, hexyl laurate, isopropyl myristate, isopropyl palmitate, butyl stearate and myristyl lactate; dibasic acid esters such as dioctyl adipate, diethyl sebacate, dioctyl sebacate and dioctyl succinate; and fatty acid esters of polyhydric alcohols such as propyleneglycol dicaproate, glyceryl trioctanoate, glyceryl tri(octanoate/decanoate), medium chain fatty acid triglycerides and the like, among which fatty acid esters such as isopropyl myristate, isopropyl palmitate, diethyl sebacate and medium chain fatty acid triglycerides are particularly preferred.
- monohydric alcohols such as cetyl
- the medical components to be included in the crosslinkable pressure-sensitive adhesive for skin are not particularly restricted so long as they can permeate biological membranes in the skin, and as examples there may be mentioned general anesthetics, hypnotics/analgesics, anti-epileptic agents, antipyretic analgesic anti-inflammatory agents, steroidal anti-inflammatory drugs, stimulants/analeptics, anti-motion sickness agents, psychoneurotic drugs, local anesthetics, skeletal muscle relaxants, autonomic nerve agents, antispasmodic drugs, anti-Parkinson drugs, antihistamines, cardiac stimulants, anti-arrhythmia drugs, diuretics, antihypertensive agents, vasoconstrictors, vasodilators, anti-arteriosclerotic agents, respiratory stimulants, antitussive expectorants, peptic ulcer treatment agents, cholagogues, hormone agents, urogenital and anal drugs, anti-asthmatic drugs, parasitic skin disease drugs, emollients
- antipyretic analgesic anti-inflammatory agents there may be mentioned ibuprofen, naproxen, flurbiprofen, ketoprofen and amfenac sodium
- steroidal anti-inflammatory drugs there may be mentioned hydrocortisone, triamcinolone, dexamethasone, betamethasone and prednisolone.
- vasodilators there may be mentioned diltiazem hydrochloride, pentaerythritol tetranitrate and isosorbide nitrate.
- anti-arrhythmia drugs there may be mentioned procainamide hydrochloride, disopyramide and mexiletine hydrochloride.
- antihypertensive agents there may be mentioned clonidine hydrochloride, bunitrolol hydrochloride and captopril.
- ethyl aminobenzoate ethyl aminobenzoate
- procaine hydrochloride ethyl aminobenzoate
- dibucaine hydrochloride ethyl aminobenzoate
- oxybuprocaine hydrochloride ethyl aminobenzoate
- procaine hydrochloride ethyl aminobenzoate
- dibucaine hydrochloride ethyl aminobenzoate
- oxybuprocaine hydrochloride oxybuprocaine hydrochloride
- propitocaine hydrochloride ethyl aminobenzoate
- hormone agents ethyl, estriol and progesterone.
- oxybutynin As an example of a urinary drug there may be mentioned oxybutynin, as an example of an anti-asthmatic drug there may be mentioned tulobuterol, and as examples of antihistamines there may be mentioned diphenhydramine hydrochloride, chlorpheniramine maleate, promethazine, cyproheptadine hydrochloride and diphenylpyraline hydrochloride.
- anti-coagulants there may be mentioned warfarin potassium and ticlopidine hydrochloride.
- thiopental sodium and pentobarbital sodium examples of general anesthetics there may be mentioned thiopental sodium and pentobarbital sodium.
- hypnotics/analgesics there may be mentioned bromvalerylurea, amobarbital and phenobarbital.
- an anti-epileptic agent there may be mentioned phenyloin sodium.
- methamphetamine hydrochloride examples of anti-motion sickness agents there may be mentioned diphenidol hydrochloride and betahistamine mesylate.
- psychoneurotic drugs there may be mentioned chlorpromazine hydrochloride, thioridazine, meprobamate, imipramine hydrochloride, chlordiazepoxide and diazepam.
- skeletal muscle relaxants there may be mentioned suxamethonium hydrochloride and eperisone hydrochloride.
- autonomic nerve agents there may be mentioned neostigmine bromide and bethanechol hydrochloride.
- an anti-Parkinson drug there may be mentioned amantadine hydrochloride.
- diuretics there may be mentioned hydroflumethiazide, isosorbide and furosemide.
- vasoconstrictor there may be mentioned phenylephrine hydrochloride.
- respiratory stimulants there may be mentioned lobeline hydrochloride, dimorpholamine and naloxone hydrochloride.
- narcotics there may be mentioned morphine hydrochloride, codeine phosphate, cocaine hydrochloride and pethidine hydrochloride.
- whitening ingredients such as ascorbyl palmitate, kojic acid, lucinol, tranexamic acid and oil-soluble licorice extract
- wrinkle preventers such as retinol, retinoic acid, retinol acetate and retinol palmitate
- circulation improving ingredients such as vitamin E, tocopherol acetate, capsaicin and vanillylamide nonylate
- antimicrobial ingredients such as isopropylmethylphenol, light-sensitive elements and zinc oxide
- vitamins such as vitamin D 2 , vitamin D 3 and vitamin K.
- the content of a medical or cosmetic ingredient in the crosslinkable pressure-sensitive adhesive for skin may be appropriately determined according to the type and purpose of use, but in too small an amount the effectiveness will be reduced while in too large an amount the adhesive property will be reduced, and therefore they are preferably added at 0.01-50 wt % in the pressure-sensitive adhesive layer. No particular problem results if the medical or cosmetic ingredient is in a supersaturated state or in a precipitated crystal state in the pressure-sensitive adhesive layer. Medical and cosmetic ingredients may also be encapsulated together with absorption accelerators, or a retaining layer may be provided for the medical or cosmetic ingredients.
- a percutaneous absorption preparation or cosmetic patch obtained using a pressure-sensitive adhesive for skin according to the invention may also contain added percutaneous absorption accelerators, drug dissolution aids or preventers, aromatic agents, and the like.
- the thickness of the pressure-sensitive adhesive layer for skin of the invention is not particularly restricted. However, if it is too thin the drug or cosmetic ingredient content must be increased and the adhesion will be reduced. If it is too thick, the medical or cosmetic ingredient in the pressure-sensitive adhesive near the support will not readily diffuse to the pressure-sensitive adhesive layer surface, thereby lowering the drug release property. In most cases, the thickness is preferably 10-200 ⁇ m.
- a percutaneous absorption preparation or cosmetic patch of the invention may be produced by a pressure-sensitive adhesive tape production process known in the prior art.
- a solution coating method for example, prescribed amounts of a plasticizer, medical or cosmetic ingredient, and the like are mixed with a solution containing the copolymer A and copolymer B, if necessary with dilution using an organic solvent, and the obtained solution is used for coating and drying onto a support, or is coated and dried on a release sheet and then transferred to a support.
- the composition for production of a crosslinkable pressure-sensitive adhesive for skin according to the invention is obtained by dissolving copolymer A and copolymer B in a solvent.
- the solvent may be any solvent used for polymerization of copolymers, and for example, ethyl acetate or the like may be used without modification.
- the solvent may be a simple solvent or a mixed solvent.
- copolymer A and copolymer B are mixed and dissolved in an ordinary solvent (for example, ethyl acetate or toluene), copolymer A is gradually crosslinked by copolymer B in the solution, resulting in gelling of the solution, and therefore preparation before use is necessary before coating.
- an ordinary solvent for example, ethyl acetate or toluene
- copolymer A is gradually crosslinked by copolymer B in the solution, resulting in gelling of the solution, and therefore preparation before use is necessary before coating.
- an ordinary solvent for example, ethyl acetate or toluene
- a composition for production of a crosslinkable pressure-sensitive adhesive for skin obtained by further adding a ketone such as acetone or butanone to a solution comprising 100 parts by weight of copolymer A, 0.1-30 parts by weight of copolymer B and a prescribed amount of solvent (for example, the polymerization solvent ethylacetate).
- acetone, butanone and the like prevent crosslinking reaction of copolymer A by copolymer B, thereby allowing the composition for production of a crosslinkable pressure-sensitive adhesive for skin to be stored for prolonged periods.
- the ketone used in this case is preferably one that readily evaporates off when evaporating the solution of copolymer A and copolymer B by heat to produce the pressure-sensitive adhesive for skin, and acetone, butanone and mixtures thereof are suitable for this purpose.
- the acetone and/or butanone When acetone and/or butanone is added to the solvent dissolving copolymer A and copolymer B, the acetone and/or butanone inhibits crosslinking reaction between the ketone groups in the diacetoneacrylamide of copolymer A and the primary amino groups or carboxyhydrazide groups on the side chains of copolymer B. As a result, the composition can be stored for prolonged periods without gelling.
- the content of acetone and/or butanone is preferably at least 5 wt % with respect to the total weight of the mixed solvent. If the content is too low, the storage property of the composition for production of a crosslinkable pressure-sensitive adhesive for skin will be reduced.
- a mixture comprising 200 parts of 2-ethylhexyl acrylate, 100 parts of butyl acrylate and 50 parts of diacetoneacrylamide as monomers and 300 parts of ethyl acetate as the solvent was supplied to a separable flask equipped with a stirrer and reflux condenser, and the temperature was raised to 75° C. with stirring and nitrogen replacement.
- a solution of 2 parts of benzoyl peroxide in 20 parts of ethyl acetate was divided into 5 portions, and one was added to the separable flask to initiate polymerization. The remaining four portions were added one at a time at each hour beginning at the second hour after start of the reaction, and upon completion of the addition, reaction was continued for 2 hours.
- a monomer composition comprising 150 parts of 2-ethylhexyl acrylate, 100 parts of butyl acrylate, 50 parts of diacetoneacrylamide and 50 parts of vinyl acetate was used in the same manner as Copolymer A Production Example 1 to obtain a solution of copolymer A having a solid concentration of 30 wt % and a styrene-based weight-average molecular weight of 95 ⁇ 10 4 cps as measured by GPC.
- a monomer composition comprising 150 parts of 2-ethylhexyl acrylate, 150 parts of butyl acrylate and 100 parts of diacetoneacrylamide was used, with lauroyl peroxide as a polymerization initiator, in the same manner as Copolymer A Production Example 1 to obtain a solution of copolymer A having a solid concentration of 30 wt % and a styrene-based weight-average molecular weight of 95 ⁇ 10 4 cps as measured by GPC.
- a mixture comprising 200 parts of 2-ethylhexyl acrylate, 100 parts of butyl acrylate and 30 parts of aminoethyl methacrylate as monomers and 300 parts of isopropyl acetate as the solvent was supplied to a separable flask equipped with a stirrer and reflux condenser, and the temperature was raised to 80° C. with stirring and nitrogen replacement.
- a solution of 2 parts of benzoyl peroxide in 30 parts of ethyl acetate was divided into 5 portions, and one was added to the separable flask to initiate polymerization. The remaining four portions were added one at a time at each hour beginning at the second hour after start of the reaction, and upon completion of the addition, reaction was continued for 2 hours.
- a monomer composition comprising 200 parts of 2-ethylhexyl acrylate, 100 parts of butyl acrylate and 10 parts of acrylic acid, with addition of 20 parts of dodecylmercaptan as a molecular weight adjustor, was used in the same manner as Copolymer B Production Example 1 to obtain a solution of copolymer B having a solid concentration of 30 wt % and a styrene-based weight-average molecular weight of 9 ⁇ 10 3 cps as measured by GPC. After adding 10 parts of ethyleneimine and 5 parts of concentrated hydrochloric acid to the solution, reaction was conducted at 80° C. for 5 hours. Upon completion of the reaction, the mixture was cooled and washed three times with purified water, and then ethyl acetate was added to obtain a solution of copolymer B with a solid concentration of 30 wt %.
- a mixture comprising 660 parts of ethyl acrylate and 70 parts of diacetoneacrylamide as the monomer composition, with addition of 40 parts of dodecylmercaptan as a molecular weight adjustor and 400 parts of ethyl acetate as a solvent, was supplied to a separable flask equipped with a stirrer and reflux condenser, and the temperature was raised to 70° C. with stirring and nitrogen replacement.
- a solution of 5 parts of azobisisobutyronitrile in 100 parts of ethyl acetate was divided into 5 portions, and one was added to the separable flask to initiate polymerization.
- the mixture was cooled and washed three times with purified water, and then the product was dissolved in a mixed solvent of 700 parts of ethyl acetate, 1400 parts of acetone and 400 parts of methanol, to obtain a solution of copolymer B having a solid concentration of 30 wt %, and a styrene-based weight-average molecular weight of 12 ⁇ 10 4 cps as measured by GPC.
- a monomer composition comprising 150 parts of 2-ethylhexyl acrylate, 100 parts of butyl acrylate and 15 parts of acrylic acid was used in the same manner as Copolymer A Production Example 1 to obtain a solution of a copolymer having a solid concentration of 30 wt % and a styrene-based weight-average molecular weight of 125 ⁇ 10 4 cps as measured by GPC.
- a monomer composition comprising 100 parts of 2-ethylhexyl acrylate, 100 parts of butyl acrylate, 50 parts of vinyl acetate and 10 parts of acrylic acid was used in the same manner as Copolymer A Production Example 1 to obtain a solution of a copolymer having a solid concentration of 30 wt % and a styrene-based weight-average molecular weight of 95 ⁇ 10 4 cps as measured by GPC.
- Example 2 After dissolving 0.5 part of aluminum acetylacetonate as a crosslinking agent in acetylacetone and adding the solution to 100 parts of the copolymer solution obtained in Comparative Production Example 2, the two solutions were uniformly stirred with a dissolver to obtain a mixture. The obtained mixture was used for the same procedure as in Example 1 to obtain a pressure-sensitive adhesive sheet for skin.
- Example 2 After adding 15 parts of oxybutynin as a drug to 100 parts of the mixture obtained in Comparative Example 1, the components were uniformly stirred with a dissolver to obtain a mixture. The obtained mixture was used for the same procedure as in Example 1 to obtain a drug-containing pressure-sensitive adhesive sheet for skin.
- Example 2 After adding 10 parts of tulobuterol as a drug to 100 parts of the mixture obtained in Comparative Example 2, the components were uniformly stirred with a dissolver to obtain a mixture. The obtained mixture was used for the same procedure as in Example 1 to obtain a drug-containing pressure-sensitive adhesive sheet for skin.
- Comparative Example 1 The mixture obtained in Comparative Example 1 was placed in a sealed glass bottle and kept at room temperature, and after 2 days the solution gelled and lost fluidity, making it impossible for coating to obtain a sheet.
- a drug-containing pressure-sensitive adhesive sheet was obtained in the same manner as Example 8, except that 0.5 part of hexanediamine was added instead of copolymer B obtained in Copolymer B Production Example 2.
- the obtained medical patch for skin and percutaneous absorption preparation were subjected to a skin irritation test, adhesive residue test and peelability test in the manner described below, yielding the results shown in Table 1.
- a test piece (10 cm 2 area) of the pressure-sensitive adhesive sheet (tape preparation) was attached to the shaven backs of each of four Japanese white rabbits, and after 24 hours it was peeled off and erythema of the skin was visually observed immediately and one hour after peeling. No edema or scab formation was observed in this test. The degree of erythema was evaluated according to the following 5-level scale (0-4).
- the presence of adhesive residue on the skin immediately after peeling was visually observed during the skin irritation test described above.
- the evaluation scale used was the following.
- the samples produced in Examples 4 and 5 and Comparative Examples 3 and 4 were used for a rat skin permeability test.
- a Franz diffusion cell with a diffusion cross-sectional area of 3.14 cm 2 was used for the test.
- a sample was attached to the corneum side of the rat skin, 100 ⁇ l of receptor solution was taken at fixed periods thereafter, and the concentration of drug which diffused through the rat skin and migrated into the receptor solution was measured by high performance liquid chromatography (HPLC).
- HPLC high performance liquid chromatography
- FIG. 1 oxygen
- FIG. 2 tulobuterol
- crosslinkable pressure-sensitive adhesive for skin that exhibits satisfactory adhesion and releasability for human skin and low irritation to skin
- a crosslinkable pressure-sensitive adhesive sheet for skin that is suitable for medical and cosmetic use.
- composition for production of a crosslinkable pressure-sensitive adhesive for skin that has superior storage properties and is suitable for preparation of the aforementioned crosslinkable pressure-sensitive adhesive for skin.
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- Animal Behavior & Ethology (AREA)
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Dermatology (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
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- Birds (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Surgery (AREA)
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US12/592,348 US8389001B2 (en) | 2004-04-13 | 2009-11-24 | Precursor composition for crosslinkable pressure-sensitive adhesive for skin |
US13/756,819 US20130143979A1 (en) | 2004-04-13 | 2013-02-01 | Precursor composition for crosslinkable pressure-sensitive adhesive for skin |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-147022 | 2004-04-13 | ||
JP2004147022 | 2004-04-13 | ||
PCT/JP2005/007058 WO2005099766A1 (fr) | 2004-04-13 | 2005-04-12 | Adhésif autocollant réticulable pour la peau |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/007058 A-371-Of-International WO2005099766A1 (fr) | 2004-04-13 | 2005-04-12 | Adhésif autocollant réticulable pour la peau |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/592,348 Division US8389001B2 (en) | 2004-04-13 | 2009-11-24 | Precursor composition for crosslinkable pressure-sensitive adhesive for skin |
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US20070196455A1 true US20070196455A1 (en) | 2007-08-23 |
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ID=35149785
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US10/593,242 Abandoned US20070196455A1 (en) | 2004-04-13 | 2005-04-12 | Crosslinkable pressure-sensitive adhesive for skin |
US12/592,348 Active 2026-03-06 US8389001B2 (en) | 2004-04-13 | 2009-11-24 | Precursor composition for crosslinkable pressure-sensitive adhesive for skin |
US13/756,819 Abandoned US20130143979A1 (en) | 2004-04-13 | 2013-02-01 | Precursor composition for crosslinkable pressure-sensitive adhesive for skin |
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Application Number | Title | Priority Date | Filing Date |
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US12/592,348 Active 2026-03-06 US8389001B2 (en) | 2004-04-13 | 2009-11-24 | Precursor composition for crosslinkable pressure-sensitive adhesive for skin |
US13/756,819 Abandoned US20130143979A1 (en) | 2004-04-13 | 2013-02-01 | Precursor composition for crosslinkable pressure-sensitive adhesive for skin |
Country Status (9)
Country | Link |
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US (3) | US20070196455A1 (fr) |
EP (1) | EP1741448B1 (fr) |
JP (1) | JP5155900B2 (fr) |
KR (1) | KR101017882B1 (fr) |
CN (1) | CN100591357C (fr) |
CA (1) | CA2561361C (fr) |
ES (1) | ES2395290T3 (fr) |
HK (1) | HK1102109A1 (fr) |
WO (1) | WO2005099766A1 (fr) |
Cited By (6)
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US20120226245A1 (en) * | 2009-09-07 | 2012-09-06 | Nipro Patch Co., Ltd. | Transdermally absorbable preparation |
US9090793B2 (en) | 2010-12-17 | 2015-07-28 | Celanese International Corporation | Aqueous latex coating compositions |
KR20180030563A (ko) * | 2015-08-05 | 2018-03-23 | 신쏘머 유에스에이 엘엘씨 | 감압성 접착제 조성물 및 이의 제조 방법 |
US11160681B2 (en) | 2015-04-10 | 2021-11-02 | Coloplast A/S | Ostomy device |
US11306169B2 (en) | 2015-08-05 | 2022-04-19 | Synthomer Usa Llc | Pressure sensitive adhesive compositions and methods for preparing same |
US11771798B2 (en) | 2015-02-02 | 2023-10-03 | Coloplast A/S | Ostomy device with a switchable adhesive layer located between a backing layer and an absorbent adhesive layer |
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WO2011010556A1 (fr) * | 2009-07-23 | 2011-01-27 | ニプロパッチ株式会社 | Préparation transdermique |
WO2011118488A1 (fr) * | 2010-03-24 | 2011-09-29 | 積水化学工業株式会社 | Composition adhésive et ruban adhésif |
US8287901B2 (en) * | 2010-08-11 | 2012-10-16 | Adhezion Biomedical, Llc | Wound healing compositions based on cyanoacrylates and 5,5-disubstitutedhydantoins, including phenytoin |
JP5663327B2 (ja) * | 2011-01-24 | 2015-02-04 | 日本酢ビ・ポバール株式会社 | インクジェット記録材料 |
JP6269488B2 (ja) * | 2012-09-03 | 2018-01-31 | ニプロ株式会社 | 貼付剤 |
US10053597B2 (en) | 2013-01-18 | 2018-08-21 | Basf Se | Acrylic dispersion-based coating compositions |
WO2015134249A1 (fr) * | 2014-03-05 | 2015-09-11 | 3M Innovative Properties Company | Adhésif sensible à la pression en (méth)acrylate respectueux de la peau |
KR20180035926A (ko) | 2015-08-31 | 2018-04-06 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 습윤 표면에 대한 접착력이 향상된 (메트)아크릴레이트 감압 접착제를 포함하는 물품 |
CN107920923A (zh) | 2015-08-31 | 2018-04-17 | 3M创新有限公司 | 包含对湿表面具有增强的粘附性的(甲基)丙烯酸酯压敏粘合剂的负压伤口治疗敷料 |
KR101956445B1 (ko) | 2017-03-22 | 2019-03-08 | 주식회사 셀루메드 | 세미 아이피엔 구조를 갖는 피부부착용 하이드로겔형 점착제 제조방법 및 이에 의해 제조된 점착제 |
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- 2005-04-12 ES ES05730606T patent/ES2395290T3/es active Active
- 2005-04-12 WO PCT/JP2005/007058 patent/WO2005099766A1/fr active Application Filing
- 2005-04-12 KR KR1020067022950A patent/KR101017882B1/ko active IP Right Grant
- 2005-04-12 EP EP20050730606 patent/EP1741448B1/fr not_active Not-in-force
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US11771798B2 (en) | 2015-02-02 | 2023-10-03 | Coloplast A/S | Ostomy device with a switchable adhesive layer located between a backing layer and an absorbent adhesive layer |
US11160681B2 (en) | 2015-04-10 | 2021-11-02 | Coloplast A/S | Ostomy device |
US11819444B2 (en) | 2015-04-10 | 2023-11-21 | Coloplast A/S | Ostomy device with a switchable adhesive composition adapted to be switched by moisture activation of a switch initiator |
KR20180030563A (ko) * | 2015-08-05 | 2018-03-23 | 신쏘머 유에스에이 엘엘씨 | 감압성 접착제 조성물 및 이의 제조 방법 |
US20180230340A1 (en) * | 2015-08-05 | 2018-08-16 | Synthomer Usa Llc | Pressure Sensitive Adhesive Compositions and Methods for Preparing Same |
US11306169B2 (en) | 2015-08-05 | 2022-04-19 | Synthomer Usa Llc | Pressure sensitive adhesive compositions and methods for preparing same |
US11345832B2 (en) * | 2015-08-05 | 2022-05-31 | Synthomer Usa Llc | Pressure sensitive adhesive compositions and methods for preparing same |
KR102628874B1 (ko) * | 2015-08-05 | 2024-01-24 | 신쏘머 유에스에이 엘엘씨 | 감압성 접착제 조성물 및 이의 제조 방법 |
Also Published As
Publication number | Publication date |
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HK1102109A1 (en) | 2007-11-09 |
EP1741448A4 (fr) | 2011-08-17 |
EP1741448A1 (fr) | 2007-01-10 |
KR20070008676A (ko) | 2007-01-17 |
CN100591357C (zh) | 2010-02-24 |
WO2005099766A1 (fr) | 2005-10-27 |
JP2009149660A (ja) | 2009-07-09 |
ES2395290T3 (es) | 2013-02-11 |
CN1942207A (zh) | 2007-04-04 |
JP5155900B2 (ja) | 2013-03-06 |
EP1741448B1 (fr) | 2012-10-03 |
US20130143979A1 (en) | 2013-06-06 |
CA2561361C (fr) | 2012-01-17 |
KR101017882B1 (ko) | 2011-03-04 |
US8389001B2 (en) | 2013-03-05 |
US20100076112A1 (en) | 2010-03-25 |
CA2561361A1 (fr) | 2005-10-27 |
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