JP7560566B2 - 水分散型ポリイソシアネート、水性ポリウレタン樹脂組成物および物品 - Google Patents
水分散型ポリイソシアネート、水性ポリウレタン樹脂組成物および物品 Download PDFInfo
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Description
また、反応時間が、例えば、10時間以下、好ましくは、6時間以下である。
また、反応時間が、例えば、20時間以下、好ましくは、10時間以下である。
なお、スルホン基の含有割合は、後述する実施例に準拠して、化学構造式および配合処方から、算出できる。
撹拌機、温度計、還流管および窒素導入管を備えた4つ口フラスコに、1,5-ペンタメチレンジイソシアネート(1,5-PDI、三井化学社製)2000.0gと、イソブタノール3.2gとを仕込んだ。これらを、80℃で2時間ウレタン化反応させた。なお、イソブタノールの水酸基に対する1,5-PDIのイソシアネート基の当量比(NCO/OH)が、600であった。
1,5-ペンタメチレンジイソシアネート2000.0gと、イソブタノール26.3gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートBを得た。なお、イソブタノールの水酸基に対する1,5-PDIのイソシアネート基の当量比(NCO/OH)は、73であった。
1,5-ペンタメチレンジイソシアネート2000.0gと、ラウリルアルコール241.6gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートCを得た。なお、ラウリルアルコールの水酸基に対する1,5-PDIのイソシアネート基の当量比(NCO/OH)は、20であった。
1,3-ビス(イソシアナトメチル)シクロヘキサン(1,3-H6XDI)2000.0gと、イソブタノール76.4gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートDを得た。なお、イソブタノールの水酸基に対する1,3-H6XDIのイソシアネート基の当量比(NCO/OH)は、20であった。
市販のVESTANAT T-1890(イソホロンジイソシアネートのイソシアヌレート誘導体、エボニック社製)を用意した。これを、ポリイソシアネートEとした。
ヘキサメチレンジイソシアネート2000.0gと、イソブタノール2.9gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートGを得た。なお、イソブタノールの水酸基に対するヘキサメチレンジイソシアネートのイソシアネート基の当量比(NCO/OH)は、600であった。
各ポリイソシアネートの分子量分布を、下記のGPC装置で測定した。
使用機器:HLC-8020(東ソー製)
使用カラム:G1000HXL、G2000HXLおよびG3000HXL(以上、東ソー製商品名)を直列に連結
サンプル濃度:0.3質量%、テトラヒドロフラン溶液
サンプル注入量:100μL
溶離液:テトラヒドロフラン
溶離液の流量:0.8ml/min
カラム温度:40℃
検出方法:示差屈折率
標準物質:ポリエチレンオキシド(東ソー製、商品名:TSK標準ポリエチレンオキシド)
製造例1~6
表1に示す処方で、第1水分散型ポリイソシアネートおよび第2水分散型ポリイソシアネートを得た。
JIS K 1557-5(2007)に準拠して、酸価を測定した。
SO3 -の分子量を80として、化学構造式および配合処方から、スルホン基の含有割合(SO3含有率)を算出した。
イソシアネート基の含有割合を、電位差滴定装置を用いて、JIS K-1556(2006)に準拠したn-ジブチルアミン法により測定した。
表2に示す処方で、各製造例で得られた第1水分散型ポリイソシアネートおよび第2水分散型ポリイソシアネートを配合し、水分散型ポリイソシアネートを得た。なお、比較例1では、第1水分散型ポリイソシアネートを単独で使用した。
(1)水分散性
水分散型ポリイソシアネートの固形分5gを、水95gに対して添加し、マグネチックスターラーで15分間撹拌した後、1時間静置した。そして、混合液の性状を、以下の評価基準で、評価した。
水酸基価100mgKOH/gの水性アクリルエマルション(固形分濃度40.0質量%)を、水で固形分濃度25質量%に希釈した。この水溶液を、主剤とした。
○:沈殿物なし。
水酸基価50mgKOH/gの水性アクリルエマルション(固形分濃度40.0質量%)を、水で固形分濃度25質量%に希釈した。この水溶液を、主剤とした。
HDI:1,6-ヘキサメチレンジイソシアネート
PDI:1,5-ペンタメチレンジイソシアネート
IPDI:イソホロンジイソシアネート
CAPS:3-(シクロヘキシルアミノ)-プロパンスルホン酸、スルホン基含有活性水素化合物
DMCHA:N,N-ジメチルシクロヘキシルアミン
PMA:プロピレングリコールメチルエーテルアセテート
Claims (9)
- イソシアネート基およびスルホン基を含有する水分散型ポリイソシアネートであって、
ポリイソシアネート成分と親水性活性水素成分との反応生成物を含み、
前記ポリイソシアネート成分は、
ペンタメチレンジイソシアネートを含む第1ポリイソシアネートと、
炭素数6以上のポリイソシアネートを含む第2ポリイソシアネートと
を含み、
前記親水性活性水素成分は、スルホン基含有活性水素化合物を含み、
前記第1ポリイソシアネートの含有割合は、前記第1ポリイソシアネートおよび前記第2ポリイソシアネートの総量に対して、40質量%以上80質量%以下である、水分散型ポリイソシアネート。 - 前記第1ポリイソシアネートが、ペンタメチレンジイソシアネートのイソシアヌレート誘導体を含み、
ペンタメチレンジイソシアネートの前記イソシアヌレート誘導体の含有割合が、前記第1ポリイソシアネートの総量に対して、60質量%以上である、請求項1に記載の水分散型ポリイソシアネート。 - ペンタメチレンジイソシアネートの前記イソシアヌレート誘導体が、ペンタメチレンジイソシアネート単量体とアルコールとの反応生成物を含む、請求項2に記載の水分散型ポリイソシアネート。
- 前記アルコールが、モノオールを含む、請求項3に記載の水分散型ポリイソシアネート。
- 前記第2ポリイソシアネートが、炭素数6以上のポリイソシアネートのイソシアヌレート誘導体を含み、
炭素数6以上のポリイソシアネートのイソシアヌレート誘導体の含有割合が、前記第2ポリイソシアネートの総量に対して、25質量%以上75質量%以下である、請求項1に記載の水分散型ポリイソシアネート。 - 前記スルホン基の含有割合が、前記水分散型ポリイソシアネートの総量に対して、0.2質量%以上5質量%以下である、請求項1に記載の水分散型ポリイソシアネート。
- 前記水分散型ポリイソシアネートの前記イソシアネート基が、ブロック剤によりブロックされている、請求項1に記載の水分散型ポリイソシアネート。
- 請求項1に記載の水分散型ポリイソシアネートと、
活性水素基含有化合物と
を含む、水性ポリウレタン樹脂組成物。 - 被塗物と、前記被塗物の表面に配置されるポリウレタン層とを備え、
前記ポリウレタン層が、請求項8に記載の水性ポリウレタン樹脂組成物の硬化物を含む、物品。
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| WO2020016116A1 (en) | 2018-07-20 | 2020-01-23 | Covestro Deutschland Ag | Ionically hydrophilized polyisocyanates with improved drying |
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| DE4140660A1 (de) * | 1991-12-10 | 1993-06-17 | Bayer Ag | Ether- und urethangruppen aufweisende polyisocyanate, ein verfahren zu ihrer herstellung und ihrer verwendung |
| JP2011201863A (ja) * | 2010-03-01 | 2011-10-13 | Mitsui Chemicals Inc | ペンタメチレンジイソシアネート、ポリイソシアネート組成物、ペンタメチレンジイソシアネートの製造方法、および、ポリウレタン樹脂 |
| US9234069B2 (en) | 2011-03-09 | 2016-01-12 | Mitsui Chemicals, Inc. | Pentamethylenediisocyanate, method for producing pentamethylenediisocyanate, polyisocyanate composition, polyurethane resin, and polyurea resin |
| EP3271412B1 (de) | 2015-03-16 | 2020-02-05 | Covestro Deutschland AG | Hydrophile polyisocyanate auf basis von 1,5-diisocyanatopentan |
| CN107406566A (zh) | 2015-05-08 | 2017-11-28 | 三井化学株式会社 | 多异氰酸酯组合物、聚氨酯树脂及涂料 |
| JP6482662B2 (ja) * | 2015-06-12 | 2019-03-13 | 三井化学株式会社 | ポリイソシアネート組成物、ポリウレタン樹脂、二液硬化型ポリウレタン組成物およびコーティング材料 |
| EP3560975B2 (de) * | 2018-04-25 | 2023-12-06 | Covestro Intellectual Property GmbH & Co. KG | Ionisch hydrophilierte polyisocyanate und antioxidantien |
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| JP2019189866A (ja) | 2018-04-25 | 2019-10-31 | コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag | イオン的に親水化されたポリイソシアネートならびにラジカルスカベンジャーおよび/または過酸化物分解剤 |
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| JP2024036565A (ja) | 2024-03-15 |
| JP7705494B2 (ja) | 2025-07-09 |
| TWI902919B (zh) | 2025-11-01 |
| EP4223813A1 (en) | 2023-08-09 |
| CN116075535A (zh) | 2023-05-05 |
| JPWO2022071362A1 (ja) | 2022-04-07 |
| TW202225239A (zh) | 2022-07-01 |
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| US20230365741A1 (en) | 2023-11-16 |
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