JP7416698B2 - 有機化合物の放出量が少ないポリウレタン - Google Patents
有機化合物の放出量が少ないポリウレタン Download PDFInfo
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- JP7416698B2 JP7416698B2 JP2020542068A JP2020542068A JP7416698B2 JP 7416698 B2 JP7416698 B2 JP 7416698B2 JP 2020542068 A JP2020542068 A JP 2020542068A JP 2020542068 A JP2020542068 A JP 2020542068A JP 7416698 B2 JP7416698 B2 JP 7416698B2
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- Prior art keywords
- polyurethane
- acid
- isocyanate
- polyesterol
- weight
- Prior art date
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- 239000004814 polyurethane Substances 0.000 title claims description 104
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 30
- 229920000642 polymer Polymers 0.000 claims description 29
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 28
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- 125000003277 amino group Chemical group 0.000 claims description 2
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- INSRQEMEVAMETL-UHFFFAOYSA-N decane-1,1-diol Chemical compound CCCCCCCCCC(O)O INSRQEMEVAMETL-UHFFFAOYSA-N 0.000 claims description 2
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- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 14
- 239000000126 substance Substances 0.000 description 14
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical compound CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 description 12
- 229920005906 polyester polyol Polymers 0.000 description 12
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- 239000000047 product Substances 0.000 description 11
- 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 9
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 9
- 229920000570 polyether Polymers 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
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- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 239000001361 adipic acid Substances 0.000 description 7
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- 150000001298 alcohols Chemical class 0.000 description 7
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- 229920000915 polyvinyl chloride Polymers 0.000 description 7
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- 230000015572 biosynthetic process Effects 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 5
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 5
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- 150000003254 radicals Chemical class 0.000 description 5
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- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 4
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 4
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 description 4
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 150000001735 carboxylic acids Chemical class 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 229920002397 thermoplastic olefin Polymers 0.000 description 4
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 3
- 229930006000 Sucrose Natural products 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
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- 239000005720 sucrose Substances 0.000 description 3
- 125000001302 tertiary amino group Chemical group 0.000 description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- FCQPNTOQFPJCMF-UHFFFAOYSA-N 1,3-bis[3-(dimethylamino)propyl]urea Chemical compound CN(C)CCCNC(=O)NCCCN(C)C FCQPNTOQFPJCMF-UHFFFAOYSA-N 0.000 description 2
- HORQAOAYAYGIBM-UHFFFAOYSA-N 2,4-dinitrophenylhydrazine Chemical compound NNC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O HORQAOAYAYGIBM-UHFFFAOYSA-N 0.000 description 2
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- NCUPDIHWMQEDPR-UHFFFAOYSA-N 2-[2-[2-(dimethylamino)ethoxy]ethyl-methylamino]ethanol Chemical compound CN(C)CCOCCN(C)CCO NCUPDIHWMQEDPR-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
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- 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
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- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/1808—Catalysts containing secondary or tertiary amines or salts thereof having alkylene polyamine groups
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/4808—Mixtures of two or more polyetherdiols
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- 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
- C08G18/4825—Polyethers containing two hydroxy groups
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- C—CHEMISTRY; METALLURGY
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- 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
- C08G18/4833—Polyethers containing oxyethylene units
- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
- C08G18/485—Polyethers containing oxyethylene units and other oxyalkylene units containing mixed oxyethylene-oxypropylene or oxyethylene-higher oxyalkylene end groups
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
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- C—CHEMISTRY; METALLURGY
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Description
ポリオールA:平均OH価28mgKOH/g、官能価2.7、およびポリエーテルの総質量に基づくプロピレンオキシド含有量84質量%を有する、エチレンオキシドおよびプロピレンオキシドをベースとするグリセロール開始ポリエーテルポリオール。
ポリオールB:OH価250mgKOH/g及び官能価2.0を有する、ポリオールA(35質量%)、プロピレンオキシド(45質量%)およびジメチルアミノプロピルアミン(20質量%)をベースとするポリエーテルポリオール。
ポリオールC:OH価490mgKOH/g及び官能価4.3、スクロース含有量20質量%、グリセロール含有量13%およびプロピレンオキシド含有量67%質量を有する、スクロース、グリセロールおよびプロピレンオキシドをベースとするポリエーテルオール。
イソシアネートA:カルボジイミド修飾4,4’-MDI85質量%と、29.8質量%のNCO含有量を有するポリマージフェニルメタンジイソシアネート(PMDI)15質量%との混合物。
Isopur SU-12021:ISL-Chemie社の黒色ペースト
Jeffcat DPA:Huntsman社の触媒
Jeffcat ZF10:Huntsman社の触媒
添加剤:
V1:トリメチロールプロパントリアセトアセテート
V2:マロン酸とジエチレングリコールとの反応生成物(2:3、Mw458g/モル)
V3:1モルのポリオールCと4モルのメチルアセトアセテートとのエステル化生成物
V4:平均OH価55mgKOH/gを有する、アジピン酸、1,4-ブタンジオール、イソフタル酸、モノエチレングリコールで構成されたポリエステルポリオール
A1:平均OH価70mgKOH/gを有する、ジエチルマロネート、アジピン酸(モル比4:1)、1,6-ヘキサンジオールおよびグリセロールから構成されたポリエステルポリオール
A2:平均OH価71mgKOH/gを有する、ジエチルマロネート、1,6-ヘキサンジオールおよびグリセロールで構成されたポリエステルポリオール
A3:平均OH価58mgKOH/gを有する、ジエチルマロネート、アジピン酸(モル比4:1)および1,6-ヘキサンジオールで構成されたポリエステルポリオール
A4:平均OH価56KOH/gを有する、ジエチルマロネートおよび1,6-ヘキサンジオールから構成されたポリエステルポリオール。
A1の合成:
最初に、142.29gのアジピン酸、0.01gのTTB(チタン(IV)ブトキシド、CAS:5593-70-4)、23.02gのグリセロールおよび604.87gの1,6-ヘキサンジオールを、温度計、窒素注入口、加熱マントル、蒸留カラムおよび攪拌機を備えた4lの丸首フラスコに入れ、120℃に加熱した。酸が完全に溶解したら、温度を段階的に240℃に上げ、数時間かけて水を240℃で留去した。4時間後、酸価は0.1mgKOH/gであり、反応混合物を150℃に冷却した。623.79gのジエチルマロネートを加え、反応温度を段階的に180℃に上げた。8時間後、さらに19gのジエチルマロネートを加え、バッチを180℃でさらに6時間撹拌した。さらに6.9gのジエチルマロネートを加え、エタノールを180℃でさらに2時間留去した。バッチを冷却し、1.5gのIrganox1076で安定化した。70.3mgKOH/gのヒドロキシル価、<0.1mgKOH/gの酸価、および25℃で5118mPasの粘度を有する無色のポリエステルポリオールが得られた。
最初に、855.74gのジエチルマロネート、630.87gの1,6-ヘキサンジオール、23.02gのグリセロール、および0.01gのTTB(チタン(IV)ブトキシド、CAS:5593-70-4)を、温度計、窒素注入口、加熱マントル、蒸留カラムおよび攪拌機を備えた4lの丸首フラスコに入れた。温度を段階的に160℃に上げた。エタノールを160℃で7時間留去した。続いてさらに50gのジエチルマロネートを加え、反応混合物を160℃で7時間沸騰させた。生成物を、1.5gのIrganox1076で安定化した。71mgKOH/gのヒドロキシル価、<0.1mgKOH/gの酸価、および25℃で3114mPasの粘度を有する無色のポリエステルポリオールが得られた。
最初に、141.31gのアジピン酸、0.01gのTTB(チタン(IV)ブトキシド、CAS:5593-70-4)および630.45gの1,6-ヘキサンジオールを、温度計、窒素注入口、加熱マントル、蒸留カラムおよび攪拌機を備えた4lの丸首フラスコに入れ、120℃に加熱した。酸が完全に溶解したら、温度を段階的に240℃に上げ、数時間かけて水を240℃で留去した。5時間後、酸価は0.1mgKOH/gであり、反応混合物を150℃に冷却した。619.50gのジエチルマロネートを加え、反応温度を段階的に180℃に上げた。11時間後、さらに16.5gのジエチルマロネートを加え、バッチを180℃でさらに3時間撹拌した。バッチを冷却し、1.50gのIrganox1076で安定化した。57.7mgKOH/gのヒドロキシル価、<0.1mgKOH/gの酸価、および25℃で4698mPasの粘度を有する無色のポリエステルポリオールが得られた。
最初に、809.37gのジエチルマロネート、656.28gの1,6-ヘキサンジオールおよび0.01gのTTB(チタン(IV)ブトキシド、CAS:5593-70-4)を、温度計、窒素注入口、加熱マントル、蒸留カラムおよび攪拌機を備えた4lの丸首フラスコに入れた。温度を段階的に160℃に上げた。エタノールを160℃で4時間留去した。続いてさらに50gのジエチルマロネートを加え、反応混合物を160℃で5時間沸騰させた。生成物を、1.5gのIrganox1076で安定化した。56.1mgKOH/gのヒドロキシル価、<0.1mgKOH/gの酸価、および25℃で3338mPasの粘度を有する無色のポリエステルポリオールが得られた。
粘度の測定:特に明記しない限り、ポリオールの粘度は、25℃でDIN EN ISO3219(1994)に従って、Rheotec RC20回転粘度計でCC25DINスピンドル(スピンドル直径:12.5mm、測定シリンダーの内径:13.56mm)を使用して、50 1/sのせん断速度で測定した。
5 接着破壊、接着なし
4 凝集破壊、PVCフィルムはポリウレタンシートから容易に除去される
3 凝集破壊、PVCフィルムはポリウレタンシートから除去できる
2 凝集破壊、PVCフィルムはポリウレタンシートからの除去が困難
1 凝集破壊、PVCフィルムはポリウレタンシートからの除去が非常に困難
1~2の評価は一般に、例えば自動車用途に十分な接着性に相当する。
混合物Aは、以下の成分を混合することによって製造した:
87.1質量部のポリオールA
3.0質量部のポリオールB
1.5質量部のTEOA
0.5質量部のIsopur SU-12021
2.3質量部の水
0.4質量部のJeffcat DPA
0.2質量部のJeffcat ZF10
0.5~5質量部の表1による化合物V1~V4およびA1~A4。
表1は、ホルムアルデヒド放出量に関するVDA277によるTVOCの値、および貯蔵後の反応時間および接着性に対するポリエステルオール(b1)の影響も示す。
Claims (14)
- (a)ポリイソシアネート、
(b)イソシアネート反応性基を有するポリマー化合物、
(c)触媒および任意に
(d)発泡剤、
(e)鎖延長剤および/または架橋剤および
(f)助剤および/または添加物質
を混合して反応混合物を提供し、前記反応混合物を反応させてポリウレタンを提供することを含むポリウレタンの製造方法であって、前記ポリマー化合物(b)は、酸成分とアルコール成分との重縮合によって得ることができるポリエステルオール(b1)を含み、前記酸成分は、マロン酸および/またはその誘導体を含み、前記アルコール成分は、ブタンジオール、ペンタンジオール、ヘキサンジオール、デカンジオールおよびこれらの混合物からなる群から選択される脂肪族アルコールを含む、製造方法。 - 前記酸成分が、マロン酸および/またはその誘導体に加えて、6~12個の炭素原子を有する1種以上のさらなるジカルボン酸またはそれらの誘導体を含む、請求項1に記載の方法。
- 酸成分の総含有量に基づくマロン酸および/またはマロン酸誘導体の含有量が20~100モル%である、請求項1または2に記載の方法。
- 前記ポリエステルオール(b1)の数平均分子量が750g/モルより大きい、請求項1から3のいずれか一項に記載の方法。
- 前記ポリエステルオール(b1)の平均官能価が2~8である、請求項1から4のいずれか一項に記載の方法。
- 前記ポリエステルオール(b1)のヒドロキシル価が10~300である、請求項1から5のいずれか一項に記載の方法。
- 前記イソシアネート反応性基を有するポリマー化合物(b)の総質量に基づく前記ポリエステルオール(b1)の質量割合が0.1質量%~50質量%である、請求項1から6のいずれか一項に記載の方法。
- 前記イソシアネート反応性基を有するポリマー化合物(b)がポリエーテルオールを含む、請求項1から7のいずれか一項に記載の方法。
- 前記触媒(c)が組み込み可能なアミン触媒を含み、該組み込み可能なアミン触媒が、イソシアネート反応性基(単数または複数)に加えて1つ以上の第3級脂肪族アミノ基を含む、請求項1から8のいずれか一項に記載の方法。
- 前記ポリウレタンが、前記ポリウレタンが接着結合されているプラスチックを含む複合要素の一部であり、前記複合要素が、請求項1から9のいずれか一項に記載のポリウレタン反応混合物をプラスチックに施与し、それを反応させて前記プラスチック上の前記ポリウレタンを提供することによって得ることができる、請求項1から9のいずれか一項に記載の方法。
- 前記プラスチックが熱可塑性物質である、請求項10に記載の方法。
- 請求項1から11のいずれか一項により得ることができるポリウレタン。
- 前記ポリウレタンが自動車内部部品である、請求項12に記載のポリウレタン。
- 閉鎖空間の内部における、請求項12または13に記載のポリウレタンの使用方法。
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WO2016188675A1 (de) | 2015-05-28 | 2016-12-01 | Basf Se | Polyurethane mit reduzierter aldehydemission |
US10683409B2 (en) | 2016-01-21 | 2020-06-16 | Basf Se | Additive mixture for stabilization of polyol and polyurethane |
KR20190015750A (ko) | 2016-06-03 | 2019-02-14 | 바스프 에스이 | 알데히드 방출이 감소된 폴리우레탄 |
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