JP2019521231A - 高倍率の熱可塑性ポリウレタン微細孔発泡シート及びその生産方法 - Google Patents
高倍率の熱可塑性ポリウレタン微細孔発泡シート及びその生産方法 Download PDFInfo
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Abstract
Description
d0−−−−テストサンプルの初期厚さ。
dr−−−−テストサンプルの最終厚さ。
Claims (10)
- 70〜100重量部のTPU、0〜30重量部のジメチルポリシロキサンを成分として含むことを特徴とする高倍率の熱可塑性ポリウレタン微細孔発泡シート。
- 90〜100重量部のTPU、0〜10重量部のジメチルポリシロキサンを成分として含むことを特徴とする請求項1に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シート。
- TPUの分子量は4〜9万、硬度はショアA65〜95であることを特徴とする請求項1に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シート。
- ジメチルポリシロキサンは、両末端がアミノ基のジメチルポリシロキサン、a,w−ジヒドロキシジメチルポリシロキサン、1つの末端がジヒドロキシアルキル基のジメチルポリシロキサン、末端がヒドロキシ基で封鎖されたジメチルポリシロキサン、末端が水素で封鎖されたジメチルポリシロキサンのうちの1又は2種類の組成物、或いは2種類以上の組成物であることを特徴とする請求項1に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シート。
- TPUは、ポリイソシアネート、ポリオール、鎖延長剤を生産原料として調製され、ポリイソシアネートは、ジフェニルメタンジイソシアネート又はトルエンジイソシアネートであり、
ポリオールは、ポリエステルポリオール、又は、ポリエーテルポリオール、又は、ポリアクリル酸ポリオール、又は、ポリカーボネートポリオール、又は、ポリオレフィンポリオールであり、
鎖延長剤は、ブタンジオール、又は、エチレングリコール、又は、プロパンジオールであることを特徴とする請求項1に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シート。 - ジメチルポリシロキサンの平均モル質量は、2000〜5000g/molであることを特徴とする請求項1に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シート。
- 請求項1に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シートに適用される生産方法であって、
a)成分を除湿、乾燥させてから押出機に投入した後、コートハンガーダイで成形、冷却し、所定の長さに切断してTPU中実シートを取得するステップと、
b)ステップa)で取得したTPU中実シートを耐高圧発泡金型に投入し、型締めにより密封してから、金型を140〜160℃まで昇温させた後、金型内に超臨界流体を導入し、超臨界流体を高温、高圧下で急速に拡散させてTPU中実シートに進入させ、超臨界流体が拡散平衡時間に達した後に温度を90〜130℃まで低下させ、金型内の超臨界流体の圧力を瞬間的に開放することで、TPU中実シートを金型空間全体に充満するまで金型内で膨張、成長させて、最後に、急速に金型を開放することで、TPU発泡シートが成長を停止してTPU微細孔発泡シートを形成するまで引き続き成長させるステップ、を含むことを特徴とする方法。 - 金型は上型と下型を含み、上型と下型の間にキャビティが形成され、上型には吸気弁と排気弁が設けられており、キャビティとTPU中実シートとの体積比は6:5〜5:1であることを特徴とする請求項7に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シートの生産方法。
- キャビティの内表面には多孔通気性金属層が敷設されていることを特徴とする請求項7に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シートの生産方法。
- 超臨界流体は、超臨界CO2、超臨界ブタン、超臨界ペンタンのうちの1又は2種類を混合した超臨界流体、或いは、2種類以上を混合した超臨界流体であり、且つ、超臨界流体の圧力は5〜20MPaであり、超臨界流体の拡散平衡時間は10〜240minであることを特徴とする請求項7に記載の高倍率の熱可塑性ポリウレタン微細孔発泡シートの生産方法。
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CN201610552489.2 | 2016-07-11 | ||
CN201610552489.2A CN106146875A (zh) | 2016-07-11 | 2016-07-11 | 一种高倍率热塑性聚氨酯微孔发泡板材及其生产方法 |
PCT/CN2016/097081 WO2018010271A1 (zh) | 2016-07-11 | 2016-08-29 | 一种高倍率热塑性聚氨酯微孔发泡板材及其生产方法 |
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CN114106396A (zh) * | 2021-12-07 | 2022-03-01 | 苏州奥斯汀新材料科技有限公司 | 一种热塑性聚氨酯发泡材料的制备方法 |
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CN115160765A (zh) * | 2022-08-30 | 2022-10-11 | 江苏中科聚合新材料产业技术研究院有限公司 | 一种聚氨酯发泡珠粒及其制备方法 |
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- 2016-08-29 WO PCT/CN2016/097081 patent/WO2018010271A1/zh active Search and Examination
- 2016-08-29 JP JP2019501990A patent/JP2019521231A/ja active Pending
- 2016-08-29 EP EP16908596.6A patent/EP3483209A4/en active Pending
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KR102548342B1 (ko) | 2021-03-16 | 2023-06-27 | 연세대학교 산학협력단 | 탄성 경화 미세 발포체 및 이의 제조방법 |
Also Published As
Publication number | Publication date |
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MA45575A (fr) | 2021-03-24 |
US20200385573A1 (en) | 2020-12-10 |
WO2018010271A1 (zh) | 2018-01-18 |
CN106146875A (zh) | 2016-11-23 |
EP3483209A1 (en) | 2019-05-15 |
EP3483209A4 (en) | 2020-02-19 |
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