WO2008065921A1 - Moisture-curable polyurethane hot melt adhesive and multilayer sheet using the same - Google Patents
Moisture-curable polyurethane hot melt adhesive and multilayer sheet using the same Download PDFInfo
- Publication number
- WO2008065921A1 WO2008065921A1 PCT/JP2007/072359 JP2007072359W WO2008065921A1 WO 2008065921 A1 WO2008065921 A1 WO 2008065921A1 JP 2007072359 W JP2007072359 W JP 2007072359W WO 2008065921 A1 WO2008065921 A1 WO 2008065921A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyol
- moisture
- adhesive
- mass
- polyurethane hot
- Prior art date
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- 239000004831 Hot glue Substances 0.000 title claims abstract description 74
- 239000004814 polyurethane Substances 0.000 title claims abstract description 73
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 73
- 150000003077 polyols Chemical class 0.000 claims abstract description 143
- 229920005862 polyol Polymers 0.000 claims abstract description 126
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 239000000853 adhesive Substances 0.000 claims abstract description 95
- 230000001070 adhesive effect Effects 0.000 claims abstract description 94
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 64
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 55
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002253 acid Substances 0.000 claims abstract description 43
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- 125000002947 alkylene group Chemical group 0.000 claims abstract description 24
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 20
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- 125000003118 aryl group Chemical group 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 45
- 239000012790 adhesive layer Substances 0.000 claims description 36
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 30
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 20
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 239000012943 hotmelt Substances 0.000 claims description 7
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- 238000005406 washing Methods 0.000 abstract description 56
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000000155 melt Substances 0.000 description 41
- 239000002585 base Substances 0.000 description 36
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical class C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 6
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- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 3
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- 239000002904 solvent Substances 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
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- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
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- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
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- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920006306 polyurethane fiber Polymers 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- FDRQPMVGJOQVTL-UHFFFAOYSA-N quercetin rutinoside Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC=2C(C3=C(O)C=C(O)C=C3OC=2C=2C=C(O)C(O)=CC=2)=O)O1 FDRQPMVGJOQVTL-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- IKGXIBQEEMLURG-BKUODXTLSA-N rutin Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](C)O[C@@H]1OC[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](OC=2C(C3=C(O)C=C(O)C=C3OC=2C=2C=C(O)C(O)=CC=2)=O)O1 IKGXIBQEEMLURG-BKUODXTLSA-N 0.000 description 1
- ALABRVAAKCSLSC-UHFFFAOYSA-N rutin Natural products CC1OC(OCC2OC(O)C(O)C(O)C2O)C(O)C(O)C1OC3=C(Oc4cc(O)cc(O)c4C3=O)c5ccc(O)c(O)c5 ALABRVAAKCSLSC-UHFFFAOYSA-N 0.000 description 1
- 235000005493 rutin Nutrition 0.000 description 1
- 229960004555 rutoside Drugs 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 239000011032 tourmaline Substances 0.000 description 1
- 229910052613 tourmaline Inorganic materials 0.000 description 1
- 229940070527 tourmaline Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4244—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
- C08G18/4247—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
- C08G18/4252—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids derived from polyols containing polyether groups and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2170/00—Compositions for adhesives
- C08G2170/20—Compositions for hot melt adhesives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
- Y10T428/2896—Adhesive compositions including nitrogen containing condensation polymer [e.g., polyurethane, polyisocyanate, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31554—Next to second layer of polyamidoester
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31565—Next to polyester [polyethylene terephthalate, etc.]
Definitions
- the present invention relates to an adhesive that can be used for bonding a fibrous base material used for manufacturing seats of clothes, shoes, bags, vehicles, and the like, and a laminated sheet obtained using the same.
- Textile products such as clothes are required to have various functions such as waterproofness and cold resistance in addition to a soft texture.
- excellent water resistance is required to prevent the intrusion of rainwater, etc., and occupations that require wearing uniforms such as police officers and firefighters.
- performance such as cold resistance and heat insulation is required for the unit.
- the sheets used for hospital beds, etc. are required to have good barrier properties to prevent the touch of the skin and stuffiness, as well as to prevent the bed blanket from being soiled by discharged materials such as urine. There is.
- the laminated sheet is, for example, a wear made of a laminated adhesive body of a raised fabric or a pile fabric and a moisture-permeable polymer film, and the moisture-permeable polymer film is a raised surface of the fabric or are laminated and adhered through the curing reaction-type adhesive pile surface, weighs force S im 2 per 50g ⁇ 400g of the wear, the coating amount of the adhesive is lm 2 per 2G ⁇ 30g, and Toru There is known cold protection and heat insulation wear having a wet polymer film surface on the front side of the wear (see, for example, Patent Document 1).
- a moisture-curable hot-melt adhesive containing a urethane prepolymer can be used as a curing reaction-type adhesive that can be used in the manufacture of the above-described cold protection and heat insulation wear.
- the polymer film and the fabric are bonded with the cured reaction adhesive applied in a dotted manner, thereby obtaining a wear having good heat retaining properties and the like that impairs the soft texture as the wear.
- the laminated sheet obtained by using the conventional moisture-curable polyurethane hot melt adhesive as described above causes a decrease in the adhesive strength of the adhesive by repeated water washing and dry cleaning, In some cases, peeling between the substrates constituting the laminated sheet occurred.
- the adhesive is obtained by reacting polyisocyanate (A) with polyol (B).
- Polyol (B) is polyolefin polyol (C), xylene resin (D), rosins.
- a reactive hot melt adhesive containing (E), a polyester polyol (F), and a polyether polyol (G) as essential components is known (for example, see Patent Document 2).
- sheets used for hospital beds and futons are required to have a very high level of cleanliness and excellent hygiene, and are therefore handled separately from laundry in general households.
- These washing methods include general water washing, followed by high-temperature washing at about 50 to 90 ° C using detergents, alkaline agents, bleaching agents, etc., followed by sterilization and sterilization under high-temperature pressure. How to do is known.
- Such a washing method which is generally referred to as industrial washing, imposes a greater load on a laminated sheet such as a sheet than ordinary water washing or dry cleaning. This may cause a significant decrease in the adhesive strength of the steel.
- Patent Document 1 JP 2002-327310 A
- Patent Document 2 JP-A-2005-290280
- the problem to be solved by the present invention is that the adhesive strength can be maintained even after repeated regular water washing or dry cleaning without impairing the flexible texture of the laminated sheet, and To provide a moisture-curable polyurethane hot melt adhesive that can maintain excellent adhesive strength even after repeated washing under severe washing conditions such as sterilized washing, and a laminate sheet using the same It is.
- the adhesive strength of the adhesive is mainly based on the composition of the polyol that constitutes the urethane prepolymer, and therefore the polycarbonate polyol, which is generally known as a polyol capable of imparting excellent adhesive strength, is mainly used. We proceeded to study.
- the adhesive does not cause a significant decrease in adhesive strength even after water washing, dry cleaning, or industrial washing, and does not easily cause separation between substrates constituting the fiber product.
- the adhesive layer formed by the above-mentioned adhesive may be very hard as compared with the conventional case, and the flexible texture of the fibrous base material or the resin film constituting the laminated sheet may be impaired. It was.
- the flexible texture of the laminated sheet still remains. Is difficult to maintain It was.
- the inventors of the present invention do not have the sufficient softness of the laminated sheet because the compatibility between polycarbonate polyol and polyol such as polytetramethylene glycol is insufficient. We considered to make these polyols as compatible as possible.
- polyester polyol power obtained by reacting a polyether polyol, which is an alkylene oxide adduct of bisphenol A, with an aliphatic polycarboxylic acid and an aromatic polycarboxylic acid.
- Phase of the above polyol We thought that this would contribute to solubilization, and investigated such polyester polyols, polycarbonate polyols, and urethane prepolymer-containing adhesives obtained by reacting polytetramethylene dalycol with polyisocyanates.
- the above-mentioned adhesive does not impair the excellent soft texture derived from the base material, and maintains excellent adhesive strength even after laminating a laminated sheet using the same repeatedly. It was possible to However, when the laminated sheet using the adhesive is repeatedly subjected to dry cleaning and industrial washing, the adhesive strength may be significantly reduced.
- the present invention relates to a moisture-curable polyurethane hot melt adhesive containing a urethane prepolymer obtained by reacting a polyol (A) and a polyisocyanate (B), the polyurethane ( A) is 40% by mass to 80% by mass of polycarbonate polyol (al), 5% by mass to 40% by mass of polytetramethylene glycol (a2), and the total amount of polyol (A).
- a polyester polyol (a3) obtained by reacting a polycarboxylic acid containing an aliphatic polycarboxylic acid and an aromatic polycarboxylic acid with a polyether polyol obtained by adding an alkylene oxide to bisphenol A; Contains 40% to 40% by weight And a moisture-curable polyurethane hot melt adhesive.
- the present invention provides a laminated sheet in which a first fibrous base material and a second fibrous base material or a resin film are bonded via an adhesive layer, the adhesive
- the present invention relates to a laminated sheet, which is a cured product of the moisture-curable polyurethane hot melt adhesive, and a garment using the same.
- the laminated sheet such as a textile product is not damaged, and the laminated sheet is repeatedly washed with water, dry cleaned, and industrially washed. Even so, it can maintain excellent adhesive strength, so it can be used, for example, for the production of beds, duvet sheets, surgical gowns, military uniforms, etc. that can be worn only with sportswear.
- FIG. 1 is a cross-sectional view showing an example of a laminated sheet of the present invention.
- FIG. 2 is a cross-sectional view showing an example of a laminated sheet of the present invention.
- the moisture-curable polyurethane hot-melt adhesive of the present invention is a moisture-curable polyurethane hot-melt adhesive containing a urethane prepolymer obtained by reacting a polyol (A) and a polyisocyanate (B).
- the polyol (A) is 40% by mass to 80% by mass of the polycarbonate polyol (al), 5% by mass to 40% by mass of the polytetramethylene glycol ( a 2), based on the total amount of the polyol (A).
- a polyester polyol (a3) obtained by reacting a polycarboxylic acid including an aliphatic polycarboxylic acid and an aromatic polycarboxylic acid with a polyether polyol obtained by adding an alkylene oxide to bisphenol A. ) Is contained in an amount of 5% by mass to 40% by mass.
- the urethane prepolymer is a compound having in its molecule an isocyanate group capable of forming a cross-linked structure by reacting with moisture present in the air or in a substrate to which the urethane prepolymer is applied, It has solid or viscous properties at room temperature.
- many urethane prepolymers have relatively low molecular weights.
- those skilled in the art also have tens of thousands of average molecular weights (Mn), which are also called urethane prepolymers.
- Mn average molecular weights
- urethane prepolymers having a number average molecular weight of tens of thousands can be used.
- the number average molecular weight of the urethane prepolymer is preferably in the range force S of 500 to 30,000, more preferably in the range of 1000 to 10,000; If the number average molecular weight of the urethane prepolymer is in the above range, it is possible to obtain a moisture-curable polyurethane hot-melt adhesive having excellent fluidity and workability by the force S.
- the content of isocyanate groups (NCO mass%) present in the urethane prepolymer is preferably in the range of 0.5 mass% to 8.0 mass%. More preferably, it is in the range of ⁇ 5 mass%.
- the urethane prepolymer has two properties, “moisture curable” and “hot melt property”.
- the moisture curable property is derived from a cross-linking reaction initiated by the reaction of an isocyanate group possessed by a urethane prepolymer and moisture (water), and is a property attributable to the isocyanate group possessed by the urethane prepolymer. is there.
- This moisture-curing action can cure and increase the molecular weight of the polyurethane hot melt adhesive of the present invention, and as a result, an adhesive layer having excellent durability and the like can be formed.
- the hot-melt property is a property resulting from the molecular structure of the selected polymer, and is a property that melts when heated to a solid or viscous property at room temperature and becomes a fluid state or a liquid state.
- it is a general term for substances, and for example, hot melts represented by ethylene acetate butyl copolymer are generally known.
- Hot melt adhesives are usually solvent-free, and can be applied to a base material that has been heated and melted, and can exhibit aggregating power when cooled. For example, it is useful as an adhesive or coating material. It is.
- [0031] of the urethane prepolymer solvent Torumai Uranaido in 125 ° C measured at a cone plate viscometer, 500mP a. S ⁇ 50000mPa. S that force is in the range of "Preferably, lOOOmPa. S ⁇ More preferably, it is within the range of 30000 mPa's. If it is a urethane prepolymer having a heat melt viscosity in the above range, it can be applied when the adhesive of the present invention is applied to a substrate or the like. As the above-mentioned adhesive not only penetrates into the base material, but also improves the business stability, it is possible to form an adhesive layer that is more uniform and has good adhesive strength with the base material. .
- the above-mentioned hot melt H is closely related to the softening point. Generally, the lower the softening point of the urethane prepolymer used, the better the workability. Conversely, the higher the softening point, the better the adhesive strength. There is a # 1 direction to become.
- the softening point of the urethane prepolymer used in the present invention is preferably in the range of 40 ° C to 120 ° C. Within the range of the softening point S of the urethane prepolymer, a workability is good and a moisture-curable polyurethane hot-melt adhesive having excellent adhesive strength can be obtained.
- the softening point as used in the present invention refers to a temperature at which heat flow starts and the cohesive force is lost when the temperature of the urethane prepolymer is increased stepwise.
- Examples of the method for adjusting the softening point of the urethane prepolymer include (1) a method for adjusting the molecular weight of the urethane prepolymer, and (2) the crystallinity of the polyester polyol when a polyester polyol is used as a raw material. Adjustment method by controlling the amount of crystalline polyester polyol used, (3) Adjustment method by introducing an aromatic cyclic structure into polyol or polyisocyanate, (4) Adjustment method by urethane bond content Laws, etc. can be adopted, and these can be used alone or in combination.
- the softening point tends to increase as the molecular weight of urethane prepolymers increases.
- the molecular weight of the urethane prepolymer can be adjusted, for example, by adjusting the molar ratio of polyisocyanate to polyol or using a high molecular weight polyol, and is not particularly limited.
- the softening point tends to increase as the content of the aromatic cyclic structure in the urethane prepolymer increases.
- the urethane prepolymer used in the present invention comprises various polyols (A) and polyisocyanate (B) described below, and the isocyanate group of the polyisocyanate (B) is the polyol. It is possible to produce by reacting under the conditions that are excessive with respect to the hydroxyl group of (A). As a result, the isocyanate group remains in the urethane prepolymer, so that moisture curing is imparted to the urethane prepolymer.
- the polyol (A) used in the production of the urethane prepolymer contains polycarbonate polyol (al) in the range of 40% by mass to 80% by mass.
- the polycarbonate polyol (al) means a polymer having a carbonate ester bond in the main chain and two or more hydroxyl groups in the molecule.
- the amount of the polycarbonate polyol (al) used is preferably 50% by mass or more, more preferably 60% by mass or more based on the polyol (A). It is more preferable that the amount is not more than mass%.
- the polycarbonate polyol (al) within the above range, it is possible to impart good heat resistance and hydrolysis resistance to the adhesive layer formed by curing the moisture-curable polyurethane hot melt adhesive of the present invention. it can. Therefore, if the adhesive of the present invention is obtained using the polycarbonate polyol (al) in the above range, even if the laminated sheet obtained using the same is repeatedly washed with water or industrial, It is possible to maintain excellent adhesive strength.
- the amount of the polycarbonate polyol (al) used is less than 40% by mass, the resulting adhesive may cause a significant decrease in adhesive strength when the laminated sheet using it is repeatedly industrially washed. There is.
- the number average molecular weight of the polycarbonate polyol (al) is within the range of 650 to 10000, preferably S, and more preferably within the range of 1000 to 5000.
- the number average molecular weight force is S650 or more, it is possible to impart better heat resistance and hydrolysis resistance to the adhesive layer formed by the moisture curable polyurethane hot melt adhesive of the present invention. it can. Also, if it is 10000 or less, it is difficult to damage the flexibility and texture of the adhesive layer, and it is applied to the moisture curable polyurethane hot melt adhesive or applied to the substrate. The work workability when performing is improved.
- the number average for the present invention The molecular weight is a value measured by gel filtration chromatography (GPC) method and calculated in terms of polystyrene.
- the polycarbonate polyol (al) is a poly (alkylene carbonate) dihydrate obtained by a condensation reaction of a low molecular weight polyol and one or more selected from diaryl carbonate, dialkyl carbonate, alkylene carbonate, and the like. All can be used.
- Examples of the low molecular weight polyol include ethylene glycol, 1,2 propylene glycol, 1,3-propylene glycol, 1,3-butanediol, 1,4 butanediol, 2,2 dimethyl-1,3 propane.
- One or more selected from cyclohexane 1,4-diol and cyclohexane 1,4-dimethanol can be used.
- the low molecular weight polyol can also be used as a part of the polyol (A) in the present invention.
- diaryl carbonate for example, one or more selected from diphenyl carbonate and dinaphthyl carbonate can be used.
- dialkyl carbonate for example, one or more selected from dimethyl carbonate, jetyl carbonate, and dibutyl carbonate can be used.
- alkylene carbonate for example, one or more selected from ethylene carbonate and propylene carbonate can be used.
- the polycarbonate polyol (al) is obtained by reacting a polyol containing 1,4 butanediol with a dialkylene carbonate such as dimethylene carbonate. It is preferable to use polycarbonate polyol obtained by processing.
- the polyol (A) used in the production of the urethane prepolymer contains the polytetramethylene glycol (a2) in the range of 5% by mass to 40% by mass.
- polytetramethylene glycol (a2) within the above range, an adhesive capable of forming an adhesive layer having good hydrolysis resistance can be obtained. Also, if it is a force, glue, Even when the used laminated sheet is repeatedly washed with water or dry cleaned, excellent adhesive strength can be maintained.
- the amount of the polytetramethylene glycol (a2) used is in the range of 20% by mass to 30% by mass of the total amount of the polyol (A), thereby further improving the hydrolysis resistance of the resulting adhesive. This is more preferable.
- the number average molecular weight of the polytetramethylene glycol (a2) is preferably in the range of 500 to 5000, and more preferably in the range of 1000 to 3000.
- the number average molecular weight force is S500 or more, particularly good hydrolysis resistance is imparted to the adhesive layer.
- the number average molecular weight is 5000 or less, the flexibility and texture of the adhesive layer are particularly good, and when producing a moisture curable polyurethane hot melt adhesive or applying it to a substrate, Work workability is improved.
- the polyol (A) used for the production of the urethane prepolymer is a polycarboxylic acid containing an aliphatic polycarboxylic acid and an aromatic polycarboxylic acid, and a polyether obtained by adding an alkylene oxide to bisphenol A.
- the polyester polyol (a3) obtained by reacting with a polyol is contained in the range of 5% by mass to 40% by mass.
- the polyester polyol (a3) contributes to improving the compatibility between the polycarbonate polyol (al) and the polytetramethylene glycol ( a2 ).
- the content of the polyester polyol (a3) is more preferably 10% by mass or more, and more preferably 30% by mass or less, based on the total amount of the polyol (A).
- the number average molecular weight of the polyester polyol (a3) is preferably in the range of 500 to 5000, more preferably in the range of 1000 to 3000. When the number average molecular weight is 500 or more, the workability of the moisture curable polyurethane hot melt adhesive of the present invention is particularly good. When the number average molecular weight is 5000 or less, the adhesive strength of the adhesive layer is particularly good. [0056]
- the polyester polyol (a3) has a glass transition temperature in the range of 50 ° C to 40 ° C, and can form an adhesive layer having good flexibility, particularly low temperature flexibility. A moisture curable polyurethane hot melt adhesive can be obtained, which is preferable.
- the glass transition temperature can be adjusted by appropriately changing the composition of the polyester polyol (a3). For example, by adjusting the amount of alkylene oxide added to the bisphenol A, It is possible to adjust the glass transition temperature within the above range.
- the glass transition temperature here refers to the endothermic peak temperature measured at 80 ° C under a nitrogen atmosphere at a rate of temperature increase of 5 ° C / min using DSC (Differential Scanning Calorimetry). .
- the polyester polyol (a3) is produced, for example, by subjecting a polycarboxylic acid containing an aliphatic polycarboxylic acid and an aromatic polycarboxylic acid to a polyether polyol obtained by adding an alkylene oxide to bisphenol A. can do.
- the polycarboxylic acid a combination of an aliphatic polycarboxylic acid and an aromatic polycarboxylic acid can be used so that the compatibility between the polycarbonate polyol (al) and the polytetramethylene glycol ( a2 ) can be improved. This is important for improving the initial cohesive force of the adhesive of the present invention. For example, when only one of aliphatic polycarboxylic acid and aromatic polycarboxylic acid is used, the compatibility between the polycarbonate polyol (al) and the polytetramethylene glycol (a2) may be reduced. As a result, the formed adhesive layer may have a soft texture and transparency, as well as a decrease in adhesive strength after various washings.
- Examples of the aliphatic polycarboxylic acid that can be used include succinic acid, maleic acid, adipic acid, glutaric acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and dodecanedicarboxylic acid.
- succinic acid maleic acid, adipic acid, glutaric acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and dodecanedicarboxylic acid.
- an aliphatic group having 6 to 10 carbon atoms it is preferable to use polycarboxylic acid, and it is more preferable to use sebacic acid or adipic acid dodecane dicarboxylic acid.
- aromatic polycarboxylic acid for example, phthalic acid, isophthalic acid, terephthalic acid and the like can be used, and it is preferable to use isophthalic acid.
- the use ratio of the aliphatic polycarboxylic acid and the aromatic polycarboxylic acid improves the compatibility between the polycarbonate polyol (al) and the polytetramethylene glycol (a2), and can be used after various washings. From the viewpoint of obtaining an adhesive capable of forming an adhesive layer having excellent flexibility without causing a decrease in adhesive strength, the ratio is preferably 10/90 to 50/50 equivalent.
- polycarboxylic acid other polyols such as aliphatic cyclic structure-containing polycarboxylic acid may be used in combination as necessary.
- a polyether polyol obtained by adding alkylene oxide to bisphenol A is used as the polyol to be reacted with the polycarboxylic acid.
- the polyether polyol can be produced, for example, by adding alkylene oxide by a well-known and conventional method using bisphenol A as an initiator.
- alkylene oxide for example, ethylene oxide, propylene oxide and the like can be used, and among these, propylene oxide is preferably used.
- the alkylene oxide is preferably added in an amount of 1 mol to 10 mol per mol of bisphenol A, more preferably 2 mol to 8 mol.
- Moisture curing capable of forming an adhesive layer with excellent flexibility without causing a decrease in adhesive strength after various washings by using a polyether polyol in which alkylene oxide in the above range is added to bisphenol A
- a flexible polyurethane hot melt adhesive can be obtained.
- polyester polyol (a3) in particular, a polyether polyol obtained by adding 4 to 8 mol of propylene oxide to 1 mol of bisphenol A, and sebacic acid and isophthalic acid are condensed.
- polyester polyol obtained by reaction Excellent compatibility between the polycarbonate (al) and the polytetramethylene glycol (a2), without causing a decrease in adhesive strength after various washings It is preferable for obtaining an adhesive capable of forming a flexible adhesive layer.
- the polyol (A) used in the production of the urethane prepolymer is 3 or more as required.
- the polyether polyol (a4) increases the crosslink density of the adhesive layer formed by the moisture curable polyurethane hot melt adhesive and imparts good mechanical strength.
- the content of the polyether polyol (a4) is preferably in the range of 0.5% by mass to 5.0% by mass with respect to the total amount of the polyol (A). 3% by mass is preferable to force S.
- the content is 0.5% by mass or more, the effect of improving the crosslinking density of the obtained adhesive layer is particularly good.
- the crosslinking density of the adhesive layer is The strength S keeps the flexibility and texture of the adhesive layer good without being too high.
- the number average molecular weight of the polyether polyol (a4) is preferably in the range of 500 to 5000, and more preferably in the range of 700 to 3000.
- the number average molecular weight is 500 or more, it is preferable in terms of improving the durability of the adhesive layer.
- the number average molecular weight is 5000 or less, the thermal stability and coating workability of the adhesive are preferred. It is preferable in that it can improve the power S.
- polyether polyol (a4) for example, those obtained by adding ethylene oxide, propylene oxide or the like to glycerin, trimethylolpropan, pentaerythritol, or the like can be used.
- a polyether polyol having three hydroxyl groups in the molecule in order to further improve the adhesive strength of the adhesive of the present invention, it is preferable to use a polyether polyol having three hydroxyl groups in the molecule.
- a product obtained by adding propylene oxide to glycerin Is more preferable.
- the polyol (A) used in the production of the urethane prepolymer may contain other polyols as required in addition to those described above, for example, other polyether polyols other than those described above. It is possible to use together one monole, polyester polyol, attalinole polyol, polyolefin polyol, castor oil polyol, silicon-modified polyol, or a mixture thereof.
- Examples of the polyisocyanate (B) used in the production of the urethane prepolymer include, for example, phenylene diisocyanate, tolylene diisocyanate, 4, 4, diphenylenomethacrylate.
- Aromatic diisocyanates such as xylylene diisocyanate, hexamethylene diisocyanate, lysine diisocyanate, cyclohexane diisocyanate, aliphatic diisocyanate such as isophorone diisocyanate or alicyclic diisocyanate, 4 , 4'-diphenylmethane diisocyanate dimer, trimer, etc. can be used.
- xylylene diisocyanate When the substrate is white, it is preferable to use xylylene diisocyanate from the viewpoint of preventing deterioration of the aesthetic appearance due to yellowing of the adhesive layer.
- the use of 4,4'-diphenylmethane diisocyanate is particularly useful for improving the mechanical strength of urethane prepolymers and the reactivity with water vapor or moisture (ie water). preferable.
- the urethane prepolymer can be produced by a known and commonly used method.
- the above-mentioned polyisocyanate (B) in a reaction container is added with polycarbonate polyol (al), polytetramethylene glycol (a2), polyester polyol (a3), and polyether as necessary.
- Other polyols such as polyol (a4) are separately dropped or a mixture thereof is dropped or collectively supplied, and then heated to react until the hydroxyl groups of these polyols are substantially eliminated. Touch with force S.
- the urethane prepolymer is produced by introducing a preheated polyol (A) and polyisocyanate (B) into an extruder at a predetermined ratio and by a so-called continuous extrusion reaction system.
- the urethane prepolymer may be produced in a force organic solvent that can be usually used without a solvent.
- a force organic solvent that can be usually used without a solvent.
- an organic solvent such as ethyl acetate, n-butyl acetate, methyl ethyl ketone, toluene and the like that does not inhibit the reaction between the polyol (A) and the polyisocyanate (B) can be used.
- an organic solvent it is necessary to remove the organic solvent by a method such as heating under reduced pressure during the reaction or after completion of the reaction.
- the use ratio of the polyol (A) to the polyisocyanate (B) is the equivalent ratio of the isocyanate group in the polyisocyanate (B) to the hydroxyl group in the polyol (A) [NCO / OH ] 1S 1. ;! ⁇ 5.0 It is preferable to adjust within the range of 1. 1. Adjust within the range of 2 ⁇ 3.0 It is particularly preferable.
- the equivalent ratio is 1.1 or more, the moisture curable polyurethane hot-melt adhesive has good moisture curable properties, and can form an adhesive layer having excellent mechanical strength. Further, when the equivalent ratio is 5.0 or less, the resulting urethane prepolymer has good chemical stability.
- urethanization catalyst can be used with appropriate force S at any stage of the reaction process.
- Examples of the urethanization catalyst include nitrogen-containing compounds such as triethylamine, triethylenediamine and N-methylmorpholine; potassium acetate, zinc stearate, stannous octylate, dibutyl diacetate, di n Butyltin dilaurate, 1,8—Diazabicyclo (5, 4, 0) undecene-7 (DBU), DBU—p-toluenesulfonate, DBU formate, DBU octylate, DBU phenol salt, amine
- a catalyst such as bismuth catalyst, morpholine catalyst, bismuth nitrate, tin chloride and iron chloride, dibutyltin dilaurate, etc.
- the urethane prepolymer obtained by the above method was aged for 5 days in an environment having an ambient temperature of 23 ° C and a relative humidity of 65% in a state of being applied to a substrate to a thickness of 50 ⁇ m.
- the glass transition temperature (Tg) of the resulting cured product is preferably in the range of 30 ° C to 60 ° C, more preferably in the range of 10 ° C to 40 ° C.
- a urethane precursor that can form a cured product having a glass transition temperature in the above range can form an adhesive layer that can maintain excellent adhesive strength even after various types of washing and has a soft texture.
- a possible moisture curable polyurethane hot melt adhesive can be obtained.
- the glass transition temperature is the peak temperature of the loss tangent (tan ⁇ ) obtained by measuring with a dynamic viscoelasticity measuring device (Rheometric) at a frequency of 1 ⁇ ⁇ ⁇ and a heating rate of 5 ° C / min. (Unit: ° C)
- the moisture curable polyurethane hot melt adhesive of the present invention comprises, for example, a urethane prepolymer obtained by the above-described method and the like, and other components as necessary, a batch type stirrer, a static mixer, etc. It can be produced by mixing using a mixing device such as a static mixer or a rotor-stator type. [0082] At the time of the above mixing, it is preferable that the urethane prepolymer is in a molten state, specifically, it is preferable that the urethane prepolymer is heated and melted at 60 ° C to 170 ° C.
- the moisture curable polyurethane hot melt adhesive of the present invention includes, for example, a silane coupling agent, a filler, a thixotropic agent, a tackifier, a wax, a heat stabilizer, light resistance, if necessary.
- Stabilizers fluorescent whitening agents
- additives such as foaming agents, thermoplastic resins, thermosetting resins, dyes, conductivity imparting agents, antistatic agents, moisture permeability improvers, water repellents, oil repellents, hollow foams Crystal water-containing compounds, flame retardants, water absorbents, moisture absorbents, deodorants, foam stabilizers, antifoaming agents, antifungal agents, antiseptics, algaeproofing agents, pigment dispersants, inert gases, antiblocking agents, Hydrolysis inhibitor It is possible to contain at least one selected from the group consisting of one kind or a combination of two or more kinds.
- the moisture-curable polyurethane hot-melt adhesive has one or a combination of two or more organic water-soluble compounds and / or inorganic water-soluble compounds for the purpose of improving water absorption and promoting moisture curing. It can be included.
- silane coupling agent examples include ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropinolemethinolegetoxysilane, / 3— (3,4 epoxy cyclohexylcyclopropyl Methoxysilane, butyltrimethoxysilane, ⁇ -cloproyltrimethoxysilane, etc. can be used.
- Examples of the filler that can be used include calcium carbonate, aluminum hydroxide, barium sulfate, strength, tanorek, carbon black, anolemina, magnesium oxide, inorganic balloon, organic balloon, lithia tourmaline, activated carbon, and the like. .
- thixotropic agent for example, surface-treated calcium carbonate, fine powder silica, bentonite, zeolite, and the like can be used.
- the set temperature of the apparatus for mixing the other components and the urethane prepolymer is usually equal to or higher than the melting temperature of the urethane prepolymer. + 30 ° C] or less. If the set temperature of the apparatus is within the above range, the urethane prepolymer and other components can be stirred and mixed uniformly. Moreover, the viscosity rise by the heat history of the adhesive agent obtained can also be prevented.
- the laminated sheet of the present invention is obtained by adhering a first fibrous base material and a second fibrous base material or a resin film via an adhesive layer, and the adhesive layer includes:
- the moisture curable polyurethane hot melt adhesive is cured by a moisture crosslinking reaction.
- FIG. 1 and 2 are cross-sectional views showing examples of the laminated sheet of the present invention.
- the first base material 11 and the second base material 12 are formed by cross-linking the moisture-curable polyurethane hot melt adhesive of the present invention 13 It is glued through.
- the adhesive layer formed by crosslinking the moisture curable polyurethane hot melt adhesive of the present invention between the first substrate 21 and the second substrate 22. 23 is glued through.
- the adhesive layer 13 is formed so as to adhere the entire surfaces of the first base material 11 and the second base material 12, and the adhesive layer 23 includes the first base material 21 and the second base material 22 For example, it is intermittently applied to circular dots, lattice dots, etc. so that only a part of the film is adhered.
- the first substrate that can be used in the production of the laminated sheet of the present invention, it is possible to use a fibrous substrate.
- a fibrous substrate Use non-woven fabric, woven fabric, knitted fabric, pile fabric, etc. as the fibrous base material.
- the fibers constituting the fibrous base material include polyester fibers, nylon fibers, polyamide fibers, polyurethane fibers, polyolefin fibers, polyacrylic fibers, and polyfluorocarbon fibers. It is particularly preferable to use a substrate made of at least one of polyester fiber and nylon fiber.
- the second substrate that can be used for the production of the laminated sheet a fibrous substrate or a resin film can be used.
- the same base materials as those exemplified as the first base material can be used.
- the substrate made of a resin film for example, a polyurethane resin film, a fluorine resin film, a polyolefin resin film, a polyester resin film, a polyamide resin film, and the like can be used. Tree It is preferable to use a base material composed of at least any force of a fat film.
- the base material made of the resin film various types of materials can be used depending on the intended use of the obtained laminated sheet.
- a gas such as water vapor that does not allow liquid such as water to pass therethrough.
- a moisture-permeable film that allows the light to pass through.
- a film having a moisture permeability in the range of 5000 to 50000 g / m 2 '24h is preferably used.
- the moisture permeability is a value measured by a method based on the A-1 method described in JIS L-1099.
- the first base material is composed of at least polyester fiber and nylon fiber
- the second base material is polyurethane.
- a combination of at least one of a resin film and a fluororesin film can be used.
- Such a laminated sheet formed by bonding the first base material and the second base material with a moisture-curable polyurethane hot melt adhesive is preferably used for clothes such as sportswear, upper materials for shoes, etc. Can do.
- first base material and the second base material described above may be a single layer or a multilayer.
- a force S can be used by using a laminate of different kinds of resin films in advance.
- the laminated sheet of the present invention can be produced, for example, by the following method.
- the moisture curable polyurethane hot melt adhesive heated and melted at a temperature of approximately 60 ° C. to 170 ° C. is applied onto one of the first substrate and the second substrate.
- the application method is preferably a method of applying the adhesive in a dot shape.
- the coating amount of the case of applying an adhesive in a dot shape is preferably in a range of 5g / m 2 ⁇ 20g / m 2 of the area of the substrate.
- a roll coater for example, a spray coater, a ⁇ -die coater, a knife coater, a comma coater, etc. are suitable. This is preferable for applying a porous polyurethane hot melt adhesive in a dot shape.
- the moisture-curable polyurethane hot-melt adhesive in the heat-melted state is applied onto the substrate. After being applied in a cup shape, the other base material is placed on the application surface, and the moisture curing reaction is allowed to proceed under pressing conditions, whereby the laminated sheet of the present invention can be produced.
- the conditions for moisture-curing the above moisture-curable polyurethane hot melt adhesive vary depending on the working environment temperature, etc. For example, temperature 18 ° C to 40 ° C, relative humidity 50% to 90%, curing time 24 Examples include conditions of time to 72 hours.
- the thickness of the adhesive layer constituting the laminated sheet is, for example, 5 111 to 20 from the viewpoint of preventing peeling between the substrates after various washings without impairing the flexible texture of the laminated sheet.
- a range of 0 Hm is preferred 50 mm to; more preferably 150 ⁇ m.
- the adhesive layer that constitutes the laminated sheet does not impair the flexible texture of the laminated sheet and prevents peeling between the substrates after various washings.
- the above 100% modulus is a film 5 mm wide x 7 cm long x 150 m thick that is made by moisture-curing a moisture-curable polyurethane hot melt adhesive at a temperature of 23 ° C and a relative humidity of 65% for 5 days. Means a value measured in accordance with JIS K7311 using Tensilon and a head speed of 300 mm / min.
- Mn number average molecular weight
- melt viscosity (mPa's) is a value obtained by measuring the melt viscosity when the urethane prepolymer is heated and melted at 125 ° C using a cone plate viscometer (ICI).
- the content of the isocyanate group in the urethane prepolymer is determined by determining the amount of residual dimethylamine by back titration using hydrochloric acid. The amount (NCO mass%) was calculated.
- a moisture-curable polyurethane hot melt adhesive was moisture-cured for 5 days at a temperature of 23 ° C. and a relative humidity of 65% to produce a film having a width of 5 mm ⁇ length of 7 cm ⁇ thickness of 50 m.
- the obtained film was measured for 100% modulus, breaking stress, and elongation at break using Tensilon (manufactured by Shimadzu Corporation, head speed: 300 mm / min) in accordance with JIS K7311.
- a 1-inch wide hot melt cloth tape is heated and fused at 130 ° C for 5 seconds to the polycarbonate film base material.
- a test piece was obtained.
- Tensilon made by Shimadzu Corp., head speed 200m / s
- JIS K6854-2 head speed 200m / s
- the peel strength of the laminated sheet after each of the water-resistant washing test, dry-cleaning test, and industrial washing test shown below is determined using a test piece obtained by heat-sealing a hot-melt cloth tape as described above. went.
- each laminated sheet was washed 50 times with water, and the appearance and peel strength after washing were evaluated. The appearance was visually evaluated according to the following criteria. The peel strength was evaluated by the method described above.
- Evaluation criteria for appearance A The force was not peeled off.
- Each laminated sheet was subjected to 50 cycles of dry cleaning with a cycle of 6 minutes of washing using parkren as the solvent and then 6 minutes of drying, and the subsequent appearance change and peel strength were evaluated.
- the appearance was visually evaluated according to the following criteria.
- the peel strength was evaluated by the method described above.
- the appearance change and peel strength were evaluated.
- the appearance was visually evaluated according to the following criteria.
- the peel strength was evaluated by the method described above.
- the feeling when each laminated sheet was bent by hand was evaluated according to the following criteria.
- polyester polyol (I 1) obtained by reacting polyether polyol obtained by adding alkylene oxide to bisphenol A and polycarboxylic acid
- an alkylene oxide adduct of bisphenolanol A was synthesized, and this was reacted with a polycarboxylic acid in a 30/70 equivalent ratio of sebacic acid and isophthalic acid to obtain a polyester polyol (I 1) having a number average molecular weight of 2000. It was.
- polyester polyol (I 2) obtained by reacting polyether polyol obtained by adding alkylene oxide to bisphenol A and polycarboxylic acid
- 1 mol of bisphenol A with propylene oxide 6 mol addition was performed to synthesize an alkylene oxide adduct of bisphenolanol A, which was reacted with polycarboxylic acid in a 30/70 equivalent ratio with adipic acid and isophthalic acid, and a polyester polyol (I 2 )
- polyester polyol (I3) obtained by reacting polyether polyol obtained by adding alkylene oxide to bisphenol A and polycarboxylic acid
- Propylene oxide was added to 1 mol of bisphenol A. 6 mol addition was performed to synthesize an alkylene oxide adduct of bisphenol A, which was then reacted with 30/70 equivalent ratio of sebacic acid and terephthalic acid as polycarboxylic acids, and a polyester polyol (I 3 )
- polyester polyol (I4) obtained by reacting polyether polyol obtained by adding alkylene oxide to bisphenol A and polycarboxylic acid
- Propylene oxide was added to 1 mol of bisphenol A.
- an alkylene oxide adduct of bisphenolanol A was synthesized, and this was reacted with sebacic acid as a polycarboxylic acid to obtain polyester polyol (I4) having a number average molecular weight of 2000.
- polyester polyol (I5) obtained by reacting polyether polyol obtained by adding alkylene oxide to bisphenol A and polycarboxylic acid
- 6 mol of propylene oxide is added to 1 mol of bisphenol A to synthesize an alkylene oxide adduct of bisphenol A, and this is reacted with isophthalic acid as a polycarboxylic acid to give a polyester polyol with a number average molecular weight of 2000 (1-5) Got.
- PTMG polytetramethylene glycol
- PC polycarbonate polyol
- a polyol component consisting of 20 parts by mass of polyester polyol (I 1) was added and heated under reduced pressure at 100 ° C. to dehydrate it until the water content reached 0.03% by mass.
- the melt viscosity at 125 ° C of the adhesive was 2800 mPa's.
- the melt viscosity at 125 ° C. after heat treatment of the above urethane prepolymer (1) at 120 ° C. for 48 hours was 5 600 mPa ′s.
- the isocyanate group content was 3.2% by mass, and the glass transition temperature (Tg) was 47 ° C.
- Example 2 instead of the polyol component used in Example 1, 20 parts by mass of PTMG, 60 parts by mass of PC, and 20 parts by mass of polyester polyol (I 1) were used. As a result, a moisture-curable polyurethane hot melt adhesive composed of urethane prepolymer (2) was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 2600 mPa's, and the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 5800 mPa's.
- the isocyanate group in the urethane prepolymer (2) The content was 3.2% by mass and the glass transition temperature (Tg) was 42 ° C.
- Example 1 instead of the polyol component used in Example 1, 30 parts by mass of PTMG and 50 quality of PC A moisture-curable polyurethane hot melt adhesive composed of urethane prepolymer (3) was obtained in the same manner as in Example 1 except that 20 parts by mass and 20 parts by mass of the polyester polyol (I 1) were used.
- the melt viscosity at 125 ° C of the above adhesive was 3200 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 5500 mPa's
- the isocyanate group in the urethane prepolymer (3) was 3.2% by mass and the glass transition temperature (Tg) was 35 ° C.
- Example 2 In the same manner as in Example 1, except that 30 parts by mass of PTMG, 45 parts by mass of PC, and 25 parts by mass of polyester polyol (I 1) were used instead of the polyol component used in Example 1. As a result, a moisture-curable polyurethane hot melt adhesive composed of urethane prepolymer (4) was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 3800 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 6400 mPa's
- isocyanate groups in the urethane prepolymer (4) The content was 3.2% by mass and the glass transition temperature (Tg) was 38 ° C.
- Example 1 20 parts by mass of PTMG, 59 parts by mass of PC, 20 parts by mass of polyester polyol (I 1), and propylene oxide of glycerin as a trifunctional polypropylene glycol were added. (Number average molecular weight: 700) (hereinafter abbreviated as trifunctional PPG), in the same manner as in Example 1, except that 1 and 0 parts by mass were used. Moisture-curing property comprising urethane prepolymer (5) A polyurethane hot melt adhesive was obtained.
- the melt viscosity at 125 ° C of the above-mentioned adhesive was 3000 mPa's, and after the heat treatment at 120 ° C for 48 hours, the melt viscosity at 125 ° C was 6100 mPa's, and the isocyanate group in the urethane prepolymer (5).
- the content was 3.2% by mass and the glass transition temperature (Tg) was 42 ° C.
- Example 2 19 parts by mass of PTMG, 57.5 parts by mass of PC, 19 parts by mass of polyester polyol (I 1), 4.5 parts by mass of trifunctional PPG, A moisture curable polyurethane hot melt adhesive made of urethane prepolymer (6) was obtained in the same manner as in Example 1 except that was used. [0136]
- the melt viscosity at 125 ° C of the above-mentioned adhesive was 3200 mPa's, and after the heat treatment at 120 ° C for 48 hours, the melt viscosity at 125 ° C was 9000 mPa's, and the isocyanate group in the urethane prepolymer (6).
- the content was 3.2% by mass, and the glass transition temperature (Tg) was 43 ° C.
- Moisture-curing comprising urethane prepolymer (7) in the same manner as in Example 1 except that polyester polyol (I 2) is used instead of polyester polyol (I 1) used in Example 1. A polyurethane hot melt adhesive was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 2600 mPa's, and the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 5300 mPa's.
- the isocyanate group in the urethane prepolymer (7) The content was 3.1% by mass, and the glass transition temperature (Tg) was 48 ° C.
- Moisture-curing comprising urethane prepolymer (8) in the same manner as in Example 1 except that polyester polyol (I 3) is used instead of polyester polyol (I 1) used in Example 1. A polyurethane hot melt adhesive was obtained.
- the melt viscosity at 125 ° C of the above-mentioned adhesive was 2800 mPa's, and after the heat treatment at 120 ° C for 48 hours, the melt viscosity at 125 ° C was 5500 mPa's, and the isocyanate group in the urethane prepolymer (8).
- the content was 3.1% by mass, and the glass transition temperature (Tg) was 50 ° C.
- Example 2 In the same manner as in Example 1, except that 40 parts by mass of PTMG, 30 parts by mass of PC, and 30 parts by mass of polyester polyol (I 1) were used instead of the polyol component used in Example 1. As a result, a moisture-curable polyurethane hot melt adhesive composed of urethane prepolymer (9) was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 3500 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 6000 mPa's
- isocyanate groups in the urethane prepolymer (9) The content was 3.2% by mass
- the glass transition temperature (Tg) was ⁇ 10 ° C.
- Example 1 instead of the polyol component used in Example 1, 35 parts by mass of PC, 35 parts by mass of PTMG, and 30 parts by mass of polyester polyol (I 1) were used. Thus, a moisture-curable polyurethane hot-melt adhesive having a urethane prepolymer (10) force was obtained.
- the melt viscosity at 125 ° C of the above-mentioned adhesive was 2200 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 4600 mPa's
- the isocyanate group in the urethane prepolymer (10) The content was 3.1% by mass
- the glass transition temperature (Tg) was 5.0 ° C.
- Example 2 In the same manner as in Example 1, except that 90 parts by mass of PC, 5 parts by mass of PTMG, and 5 parts by mass of polyester polyol (I 1) were used instead of the polyol component used in Example 1. As a result, a moisture curable polyurethane hot melt adhesive having a urethane prepolymer (11) force was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 2800 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 4600 mPa's
- the isocyanate group in the urethane prepolymer (11) content 3.1 wt 0/0 the glass transition temperature (Tg) of 49 ° C.
- Example 4 In the same manner as in Example 1, except that 70 parts by mass of PC, 10 parts by mass of PTMG, and 20 parts by mass of polyester polyol (I 4) were used instead of the polyol component used in Example 1. Thus, a moisture curable polyurethane hot melt adhesive having a urethane pre-polymer (12) force was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 2000 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 4000 mPa's
- Example 2 instead of the polyol component used in Example 1, 70 parts by mass of PC, 10 parts by mass of PTMG, and 20 parts by mass of polyester polyol (I5) were used. Thus, a moisture curable polyurethane hot melt adhesive having a urethane prepolymer (13) force was obtained.
- the melt viscosity at 125 ° C of the above-mentioned adhesive was 2200 mPa's, and after the heat treatment at 120 ° C for 48 hours, the melt viscosity at 125 ° C was 4800 mPa's. Soshianeto group content 3.2 mass 0/0, the glass transition temperature (Tg) of 48 ° C.
- Example 2 In the same manner as in Example 1 except that 40 parts by mass of PTMG and 60 parts by mass of PC were used instead of the polyol component used in Example 1, a moisture composed of urethane prepolymer (14) was used.
- the melt viscosity at 125 ° C of the above-mentioned adhesive was 3400 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 6800 mPa's
- the glass transition temperature (Tg) of 37 ° C.
- a urethane prepolymer was prepared in the same manner as in Example 1 except that 80 parts by mass of PC and 20 parts by mass of polyester polyol (1-1) were used in place of the polyol component used in Example 1. (15) A moisture-curable polyurethane hot-melt adhesive that also has strength was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 3000 mPa's, and after the heat treatment at 120 ° C for 48 hours, the melt viscosity at 125 ° C was 7000 mPa's, and the isocyanate group in the urethane prepolymer (15). content 3.2 wt 0/0, the glass transition temperature (Tg) of 40 ° C.
- Example 2 In place of the polyol component used in Example 1, 59.5 parts by mass of PTMG, 39.5 parts by mass of polyester polyol (I 1), and 1.0 part by mass of trifunctional PPG were used. In the same manner as in Example 1, a urethane prepolymer (16) force, a moisture curable polyurethane hot melt adhesive was obtained.
- the melt viscosity at 125 ° C of the above-mentioned adhesive was 3300 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 6500 mPa's
- the glass transition temperature (Tg) of 37 ° C.
- Example 1 instead of the polyol component used in Example 1, 100 parts by mass of PC was used, and in the same manner as in Example 1, a urethane prepolymer (17) force, a moisture curable polyurethane hot melt adhesive was prepared. Obtained.
- the above-mentioned adhesive has a melt viscosity of 2600 mPa's at 125 ° C and heat treatment at 120 ° C for 48 hours. Melt viscosity at 125 ° C after the 5200mPa 's, I Soshianeto group content of the urethane prepolymer (17) in the 3.2 mass 0/0, the glass transition temperature (Tg) of 50 ° C.
- Example 2 In the same manner as in Example 1 except that 100 parts by mass of PTMG was used instead of the polyol component used in Example 1, a moisture curable polyurethane hot melt adhesive having a urethane prepolymer (18) force was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 3000 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 6500 mPa's
- the isocyanate group in the urethane prepolymer (18) content 3.1 wt 0/0 the glass transition temperature (Tg) of 50 ° C.
- polyester polyol (I 1) 100 parts by mass of polyester polyol (I 1) was used, and in the same manner as in Example 1, the urethane prepolymer (19) force was obtained. A polyurethane hot melt adhesive was obtained.
- the melt viscosity at 125 ° C of the above adhesive was 2400 mPa's
- the melt viscosity at 125 ° C after heat treatment at 120 ° C for 48 hours was 4800 mPa's
- the isocyanate group in the urethane prepolymer (19) The content was 3.1% by mass
- the glass transition temperature (Tg) was 10 ° C.
- a mixed solvent solution of polycarbonate resin methylethylketone and toluene and dimethylformamide was applied and dried to obtain a film made of polycarbonate resin having a thickness of 20 m.
- the moisture-curable polyurethane hot melt adhesives of the above examples and comparative examples were applied in the form of lattice dots so that the application amount was 20 g / m 2 .
- a pile fabric was bonded to the above coated surface, and it was aged for 3 days at a temperature of 23 ° C and a relative humidity of 65% with a pressure of 0.3 MPa, and a moisture-curable polyurethane hot melt adhesive. was laminated by moisture to prepare a laminated sheet.
- Trifunctional PPG 4.5 ⁇ ⁇ ⁇ ⁇
- NC0 / 0H (equivalent ratio) 1.8 2.0 2.0 2.0 2.0 2.0
- PTMG is polytetramethylene glycol (number average molecular weight 2000).
- PC polycarbonate polyol (number average molecular weight 2000).
- Polyester polyol (1-1) is a polyester polyol (number average molecular weight 2000) obtained by reacting a propylene oxide adduct of bisphenol A with sebacic acid and isophthalic acid.
- Polyester polyol (1-2) is a polyester polyol (number average molecular weight 2000) obtained by reacting a propylene oxide adduct of bisphenol A with adipic acid and isophthalic acid.
- Polyester polyol (1-3) is polyester boliol (number average molecular weight 2000) obtained by reacting bisphenol A with propylene oxide, sebacic acid and terephthalic acid.
- Polyester polyol (I4) is a polyester polyol (number average molecular weight 20000) obtained by reacting a propylene oxide adduct of bisphenol A with sebacic acid.
- Polyester polyol (1-5) is a polyester polyol (number average molecular weight 20000) obtained by reacting a propylene oxide adduct of bisphenol A with isophthalic acid.
- Trifunctional PPG is trifunctional polypropylene glycol (propylene oxide adduct of glycerin) (number average molecular weight 700).
- MDI 4,4'-diphenylmethane diisocyanate.
- the moisture curable polyurethane hot melt adhesive of the present invention and a laminated sheet using the same can be suitably applied to, for example, clothes such as sportswear, shoes, bags, seats for vehicles, leather-like sheets, and the like.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US12/302,237 US7641968B2 (en) | 2006-12-01 | 2007-11-19 | Moisture-curable polyurethane hot melt adhesive and multilayer sheet using the same |
JP2008513421A JP4158838B2 (ja) | 2006-12-01 | 2007-11-19 | 湿気硬化性ポリウレタンホットメルト接着剤およびこれを用いた積層シート |
EP20070832089 EP2025730B1 (en) | 2006-12-01 | 2007-11-19 | Moisture-curable polyurethane hot melt adhesive and multilayer sheet using the same |
CN2007800104668A CN101410473B (zh) | 2006-12-01 | 2007-11-19 | 湿固性聚氨酯热熔性粘合剂及使用它的层压片 |
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PCT/JP2007/072359 WO2008065921A1 (en) | 2006-12-01 | 2007-11-19 | Moisture-curable polyurethane hot melt adhesive and multilayer sheet using the same |
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US (1) | US7641968B2 (ja) |
EP (1) | EP2025730B1 (ja) |
JP (1) | JP4158838B2 (ja) |
KR (1) | KR101004339B1 (ja) |
CN (1) | CN101410473B (ja) |
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WO (1) | WO2008065921A1 (ja) |
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Also Published As
Publication number | Publication date |
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TW200835764A (en) | 2008-09-01 |
EP2025730A1 (en) | 2009-02-18 |
CN101410473A (zh) | 2009-04-15 |
TWI343940B (en) | 2011-06-21 |
KR20080088628A (ko) | 2008-10-02 |
JPWO2008065921A1 (ja) | 2010-03-04 |
JP4158838B2 (ja) | 2008-10-01 |
US7641968B2 (en) | 2010-01-05 |
EP2025730A4 (en) | 2013-09-04 |
CN101410473B (zh) | 2012-01-04 |
EP2025730B1 (en) | 2014-04-16 |
US20090208759A1 (en) | 2009-08-20 |
KR101004339B1 (ko) | 2010-12-28 |
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