JP6683298B1 - 合成皮革 - Google Patents
合成皮革 Download PDFInfo
- Publication number
- JP6683298B1 JP6683298B1 JP2019562023A JP2019562023A JP6683298B1 JP 6683298 B1 JP6683298 B1 JP 6683298B1 JP 2019562023 A JP2019562023 A JP 2019562023A JP 2019562023 A JP2019562023 A JP 2019562023A JP 6683298 B1 JP6683298 B1 JP 6683298B1
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- JP
- Japan
- Prior art keywords
- urethane resin
- mass
- parts
- preferable
- water
- 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.)
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- 239000002649 leather substitute Substances 0.000 title claims abstract description 33
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 125000000129 anionic group Chemical group 0.000 claims abstract description 44
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 36
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 36
- 239000010410 layer Substances 0.000 claims abstract description 35
- 239000012790 adhesive layer Substances 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 239000011342 resin composition Substances 0.000 claims abstract description 28
- 125000003118 aryl group Chemical group 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 12
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 57
- 150000003077 polyols Chemical class 0.000 description 46
- -1 polyoxyethylene Polymers 0.000 description 46
- 229920005862 polyol Polymers 0.000 description 43
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 36
- 239000004970 Chain extender Substances 0.000 description 33
- 238000000034 method Methods 0.000 description 32
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 27
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- 239000000203 mixture Substances 0.000 description 21
- 239000000126 substance Substances 0.000 description 19
- 150000001875 compounds Chemical class 0.000 description 18
- 239000004793 Polystyrene Substances 0.000 description 16
- 229920002223 polystyrene Polymers 0.000 description 16
- 230000007062 hydrolysis Effects 0.000 description 15
- 238000006460 hydrolysis reaction Methods 0.000 description 15
- 125000003277 amino group Chemical group 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 14
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 12
- 238000003786 synthesis reaction Methods 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 239000004417 polycarbonate Substances 0.000 description 11
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 10
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 10
- 239000005058 Isophorone diisocyanate Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 9
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 9
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical class CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 8
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 238000010992 reflux Methods 0.000 description 8
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- 239000003795 chemical substances by application Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 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 description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 239000003995 emulsifying agent Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 239000012948 isocyanate Substances 0.000 description 6
- 150000002513 isocyanates Chemical class 0.000 description 6
- 150000003673 urethanes Chemical class 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- 238000004440 column chromatography Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 125000002723 alicyclic group Chemical group 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 239000012975 dibutyltin dilaurate Substances 0.000 description 4
- 239000000539 dimer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 4
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 229920005906 polyester polyol Polymers 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 230000002940 repellent Effects 0.000 description 4
- 239000005871 repellent Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000002562 thickening agent Substances 0.000 description 4
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical group NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 3
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
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- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical group NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 3
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- 125000002091 cationic group Chemical group 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
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- 239000003381 stabilizer Substances 0.000 description 3
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 2
- NNOZGCICXAYKLW-UHFFFAOYSA-N 1,2-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC=C1C(C)(C)N=C=O NNOZGCICXAYKLW-UHFFFAOYSA-N 0.000 description 2
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 2
- MTZUIIAIAKMWLI-UHFFFAOYSA-N 1,2-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC=C1N=C=O MTZUIIAIAKMWLI-UHFFFAOYSA-N 0.000 description 2
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Classifications
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Abstract
Description
れる。これらの反応は、例えば、50〜100℃の温度で3〜10時間行うことが好ましい。
(1)基材(i)、接着層(ii)、表皮層(iii)
(2)基材(i)、接着層(ii)、中間層、表皮層(iii)
(3)基材(i)、多孔層、接着層(ii)、表皮層(iii)
(4)基材(i)、多孔層、接着層(ii)、中間層、表皮層(iii)
撹拌機、還流冷却管、温度計及び窒素吹き込み管を備えた4ツ口フラスコに、窒素気流下、ポリカーボネートジオール(旭化成ケミカルズ株式会社製「DURANOL T5652」数平均分子量:2,000)500質量部、2,2−ジメチロールプロピオン酸(以下「DMPA」と略記する。)8質量部、メチルエチルケトン394質量部を加え、均一に混合した後、トルエンジイソシアネート(以下「TDI」と略記する。)68質量部を加え、次いでジブチル錫ジラウレート0.1質量部を加え、70℃で約4時間反応させた。次いで、1,3−ブタンジオールを14質量部加え、70℃で約1時間反応させて反応を終了させ、ウレタンポリマーのメチルエチルケトン溶液を得た。次いで、前記方法で得られたウレタンポリマーのメチルエチルケトン溶液にトリエチルアミン6質量部を加え、前記ウレタンポリマー中のカルボキシル基を中和した後、イオン交換水886質量部を加えた後、メチルエチルケトンを減圧下留去することによって、接着層形成用ウレタン樹脂(A−1)組成物(不揮発分;40質量%、アニオン性基(カルボキシル基、以下同じ。)の濃度;0.11mmol/g、重量平均分子量;29,000、芳香環の濃度;0.67mol/kg)を得た。
撹拌機、還流冷却管、温度計及び窒素吹き込み管を備えた4ツ口フラスコに、窒素気流下、ポリテトラメチレングリコール(数平均分子量:2,000)500質量部、エチレングリコール3質量部、DMPA12質量部、メチルエチルケトン403質量部を加え、均一に混合した後、TDI79質量部を加え、次いでジブチル錫ジラウレート0.1質量部を加え、70℃で約4時間反応させた。次いで、1,3−BGを11質量部加え、70℃で約1時間反応させて反応を終了させ、ウレタンポリマーのメチルエチルケトン溶液を得た。次いで、前記方法で得られたウレタンポリマーのメチルエチルケトン溶液にトリエチルアミン9質量部を加え、前記ウレタンポリマー中のカルボキシル基を中和した後、イオン交換水907質量部を加えた後、メチルエチルケトンを減圧下留去することによって、接着層形成用ウレタン樹脂(A−2)組成物(不揮発分;40質量%、重量平均分子量;46,000、アニオン性基の濃度;0.15mmol/g、芳香環の濃度;0.75mol/kg)を得た。
撹拌機、還流冷却管、温度計及び窒素吹き込み管を備えた4ツ口フラスコに、窒素気流下、ポリプロピレングリコール(数平均分子量:2,000)500質量部、1,4−ブタンジオール9質量部、DMPA10質量部、メチルエチルケトン400質量部を加え、均一に混合した後、TDI78質量部を加え、次いでジブチル錫ジラウレート0.1質量部を加え、70℃で約4時間反応させた。次いで、1,3−BGを4質量部加え、70℃で約1時間反応させて反応を終了させ、ウレタンポリマーのメチルエチルケトン溶液を得た。次いで、前記方法で得られたウレタンポリマーのメチルエチルケトン溶液にN,N−ジメチルエタノールアミン7質量部を加え、前記ウレタンポリマー中のカルボキシル基を中和した後、イオン交換水901質量部を加えた後、メチルエチルケトンを減圧下留去することによって、接着層形成用ウレタン樹脂(A−3)組成物(不揮発分;40質量%、アニオン性基の濃度;0.13mmol/g、重量平均分子量;68,000、芳香環の濃度;0.74mol/kg)を得た。
攪拌機、還流冷却管、温度計、及び、窒素導入管を備えた四つ口フラスコに、窒素気流下、ポリカーボネートポリオール(宇部興産株式会社製「ETERNACOLL UH−200、数平均分子量;2,000」)120質量部、ポリテトラメチレングリコール(数平均分子量;2,000)280質量部を70℃で均一に混合した後、イソホロンジイソシアネート100質量部を加え、100℃で6時間反応させることで、イソシアネートを有するウレタンプレポリマーを得た。次いで、このウレタンプレポリマーを60℃まで冷却し、アセトン928質量部を加え、均一に溶解した。このウレタンプレポリマー溶液に、イオン交換水191質量部、イソホロンジアミン30質量部、及び、N−2−アミノエタン−2−アミノスルホン酸ナトリウム6質量部の混合液を加えた。次いで、イオン交換水155質量部を加えた。反応終了後、アセトンを減圧下留去することで、ウレタン樹脂(X−1)組成物(不揮発分;60質量%、アニオン性基の濃度;0.059mmol/g)を得た。
攪拌機、還流冷却管、温度計、及び、窒素導入管を備えた四つ口フラスコに、窒素気流下、ポリカーボネートポリオール(宇部興産株式会社製「ETERNACOLL UH−200、数平均分子量;2,000」)120質量部、ポリテトラメチレングリコール(数平均分子量;2,000)280質量部、日油株式会社製「ユニルーブ50MB−72」(数平均分子量;3,000)12質量部を70℃で均一に混合した後、イソホロンジイソシアネート101質量部を加え、100℃で6時間反応させることで、イソシアネートを有するウレタンプレポリマーを得た。次いで、このウレタンプレポリマーを60℃まで冷却し、アセトン953質量部を加え、均一に溶解した。このウレタンプレポリマー溶液に、イオン交換水193質量部、イソホロンジアミン30質量部、及び、N−2−アミノエタン−2−アミノスルホン酸ナトリウム4質量部の混合液を加えた。次いで、イオン交換水172質量部を加えた。反応終了後、アセトンを減圧下留去することで、ウレタン樹脂(X−2)組成物(不揮発分;60質量%、アニオン性基の濃度;0.039mmol/g)を得た。
攪拌機、還流冷却管、温度計、及び、窒素導入管を備えた四つ口フラスコに、窒素気流下、ポリカーボネートポリオール(宇部興産株式会社製「ETERNACOLL UH−200、数平均分子量;2,000」)280質量部、ポリテトラメチレングリコール(数平均分子量;2,000)120質量部を70℃で均一に混合した後、イソホロンジイソシアネート50質量部、ヘキサメチレンジイソシアネート38質量部を加え、100℃で6時間反応させることで、イソシアネートを有するウレタンプレポリマーを得た。次いで、このウレタンプレポリマーを60℃まで冷却し、アセトン906質量部を加え、均一に溶解した。このウレタンプレポリマー溶液に、イオン交換水90質量部、80質量%水加ヒドラジン11質量部、及び、N−2−アミノエタン−2−アミノスルホン酸ナトリウム5質量部の混合液を加えた。次いで、イオン交換水246質量部を加えた。反応終了後、アセトンを減圧下留去することで、ウレタン樹脂(X−3)組成物(不揮発分;60質量%、アニオン性基の濃度;0.053mmol/g)を得た。
撹拌機、還流冷却管、温度計及び窒素吹き込み管を備えた4ツ口フラスコに、窒素気流下、ポリテトラメチレングリコール(数平均分子量;1,000)を500質量部、DMPA15質量部、メチルエチルケトン450質量部を加え、均一に混合した後、イソホロンジイソシアネート(以下「IPDI」と略記する。)149質量部を加え、次いでジブチル錫ジラウレート0.1質量部を加え、70℃で約4時間反応させた。次いで、1,3−ブタンジオールを11質量部加え、70℃で1時間反応させ、ウレタンプレポリマーのメチルエチルケトン溶液を得た。次いで、前記方法で得られたウレタンポリマーのメチルエチルケトン溶液にN,N−ジメチルエタノールアミン10質量部を加え、前記ウレタンポリマー中のカルボキシル基を中和した後、イオン交換水1,012質量部を加えた。反応終了後、メチルエチルケトンを減圧下留去することによって、接着層形成用ウレタン樹脂(AR−1)組成物(不揮発分;40質量%、アニオン性基の濃度;0.16mmol/g、重量平均分子量;28,000、芳香環の濃度;0mol/kg)を得た。
攪拌機、還流冷却管、温度計、及び、窒素導入管を備えた四つ口フラスコに、窒素気流下、ポリカーボネートポリオール(宇部興産株式会社製「ETERNACOLL UH−200、数平均分子量;2,000」)100質量部、ポリテトラメチレングリコール(数平均分子量;2,000)186質量部、DMPA24質量部を70℃で均一に混合した後、IPDI143質量部を加え、100℃で6時間反応させることで、イソシアネートを有するウレタンプレポリマーを得た。次いで、このウレタンプレポリマーを60℃まで冷却し、アセトン910質量部を加え、均一に溶解した。このウレタンプレポリマー溶液に、トリエチルアミン18質量部を加え、カルボキシル基を中和した後、イオン交換水922質量部を加え、イソホロンジアミン44質量部を加え反応した。反応終了後、アセトンを減圧下留去することで、ウレタン樹脂(XR−1)組成物(不揮発分;35質量%、アニオン性基の濃度;0.36mmol/g)を得た。
合成例4で得られた表皮層形成用ウレタン樹脂(X−1)組成物100質量部、水分散性黒色顔料(DIC株式会社製「ダイラックHS−9530」)を10質量部、会合型増粘剤(DIC株式会社製「ハイドラン アシスター T10」)を1質量部からなる配合液をフラット離型紙(味の素株式会社製「DN−TP−155T」)上に乾燥後の膜厚が30μmとなる様に塗布し、70℃で2分間、さらに120℃で2分間乾燥させた。
次いで、合成例1で得られた接着層形成用ウレタン樹脂(A−1)組成物100質量部、会合型増粘剤(DIC株式会社製「ハイドラン アシスター T10」)を1質量部、ポリイソシアネート系架橋剤(DIC株式会社製「ハイドラン アシスター C5」)を9質量部からなる配合液を乾燥後の膜厚が50μmとなるように塗布し、70℃で3分間乾燥させた。乾燥後直ちにポリウレタン含浸不織布を貼り合わせた後、120℃で2分間熱処理し、50℃で2日間熟成させてから離型紙を剥離して合成皮革を得た。
用いる表皮層形成用ウレタン樹脂組成物、接着層形成用ウレタン樹脂組成物の種類を表1〜3に変更した以外は、実施例1と同様にして合成皮革を得た。
合成例で用いたポリオールの数平均分子量、及び、合成例で得られたウレタン樹脂の重要平均分子量は、ゲル・パーミエーション・カラムクロマトグラフィー(GPC)法により、下記の条件で測定し得られた値を示す。
カラム:東ソー株式会社製の下記のカラムを直列に接続して使用した。
「TSKgel G5000」(7.8mmI.D.×30cm)×1本
「TSKgel G4000」(7.8mmI.D.×30cm)×1本
「TSKgel G3000」(7.8mmI.D.×30cm)×1本
「TSKgel G2000」(7.8mmI.D.×30cm)×1本
検出器:RI(示差屈折計)
カラム温度:40℃
溶離液:テトラヒドロフラン(THF)
流速:1.0mL/分
注入量:100μL(試料濃度0.4質量%のテトラヒドロフラン溶液)
標準試料:下記の標準ポリスチレンを用いて検量線を作成した。
東ソー株式会社製「TSKgel 標準ポリスチレン A−500」
東ソー株式会社製「TSKgel 標準ポリスチレン A−1000」
東ソー株式会社製「TSKgel 標準ポリスチレン A−2500」
東ソー株式会社製「TSKgel 標準ポリスチレン A−5000」
東ソー株式会社製「TSKgel 標準ポリスチレン F−1」
東ソー株式会社製「TSKgel 標準ポリスチレン F−2」
東ソー株式会社製「TSKgel 標準ポリスチレン F−4」
東ソー株式会社製「TSKgel 標準ポリスチレン F−10」
東ソー株式会社製「TSKgel 標準ポリスチレン F−20」
東ソー株式会社製「TSKgel 標準ポリスチレン F−40」
東ソー株式会社製「TSKgel 標準ポリスチレン F−80」
東ソー株式会社製「TSKgel 標準ポリスチレン F−128」
東ソー株式会社製「TSKgel 標準ポリスチレン F−288」
東ソー株式会社製「TSKgel 標準ポリスチレン F−550」
実施例及び比較例で得られた合成皮革を、島津オートグラフ「AG−1」(株式会社島津製作所製)を使用して、フルスケール5kg、ヘッドスピード20mm/分の条件にて剥離強度を測定し、以下のように評価した。
「A」;0.15MPa以上
「B」;0.1MPa以上0.15MPa未満
「C」;0.1MPa未満
実施例及び比較例で得られた合成皮革の表皮層上に、エタノールを10滴滴下し、24時間放置した後の外観を観察し、以下のように評価した。
「A」;外観に異常なし。
「B」;外観に軽度の白化が生じていた。
「C」;外観に大きな黄変が生じていた。
実施例及び比較例で得られた合成皮革を70℃、湿度95%の条件下で5週間放置した。その後の外観観察および指触により、以下のように評価した。
「A」;外観・指触に異常なし。
「B」;外観に艶変化が生じたが、指触では異常は確認されなかった。
「C」;外観に艶変化が生じ、かつ、ベタツキが確認された。
Claims (3)
- 少なくとも、基材(i)、接着層(ii)、及び、表皮層(iii)を有する合成皮革であって、
前記接着層(ii)が、トルエンジイソシアネートを含む芳香族ポリイソシアネート(a1)を原料とするウレタン樹脂(A)、及び、水(B)を含有するウレタン樹脂組成物により形成されたものであり、
前記ウレタン樹脂(A)中の芳香環の濃度が、0.1〜2.5mol/kgの範囲であり、
前記水(B)の含有量が、前記ウレタン樹脂組成物中20〜90質量%の範囲であり、
かつ、
前記表皮層(iii)が、アニオン性基の濃度が0.005〜0.15mmol/gの範囲であるアニオン性ウレタン樹脂(X)、及び、水(Y)を含有するウレタン樹脂組成物により形成されたものであり、
前記水(Y)の含有量が、前記ウレタン樹脂組成物中30〜80質量%の範囲であることを特徴とする合成皮革。 - 前記ウレタン樹脂(A)の重量平均分子量が、2,000〜150,000の範囲である請求項1記載の合成皮革。
- 前記アニオン性ウレタン樹脂(X)のアニオン性基が、スルホニル基である請求項1又は2記載の合成皮革。
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CN102618202A (zh) * | 2012-04-01 | 2012-08-01 | 江阴市诺科科技有限公司 | 一种制革用水性聚氨酯复合胶及其制备方法、应用 |
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