JP2023502379A - 多層管およびその製造方法 - Google Patents
多層管およびその製造方法 Download PDFInfo
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- JP2023502379A JP2023502379A JP2022528003A JP2022528003A JP2023502379A JP 2023502379 A JP2023502379 A JP 2023502379A JP 2022528003 A JP2022528003 A JP 2022528003A JP 2022528003 A JP2022528003 A JP 2022528003A JP 2023502379 A JP2023502379 A JP 2023502379A
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- fluoroelastomer
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- tetrafluoroethylene
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- 238000004519 manufacturing process Methods 0.000 title description 4
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 137
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- 238000000034 method Methods 0.000 claims description 49
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- 239000000203 mixture Substances 0.000 claims description 45
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 44
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- RRZIJNVZMJUGTK-UHFFFAOYSA-N 1,1,2-trifluoro-2-(1,2,2-trifluoroethenoxy)ethene Chemical compound FC(F)=C(F)OC(F)=C(F)F RRZIJNVZMJUGTK-UHFFFAOYSA-N 0.000 claims description 23
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- Engineering & Computer Science (AREA)
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Abstract
Description
ライナー材料
組成物および機械的特性:
フルオロポリマー1-テトラフルオロエチレン(TFE)、ヘキサフルオロプロピレン、フッ化ビニリデン、およびパーフルオロビニルエーテルのモノマー単位を有する、85AデュロメータのフルオロポリマーテトラポリマーTHVP。
フルオロポリマー2(改質剤)、ブレンド2、およびブレンド3を、見込みのある結合層材料への接着性について試験した。結合層材料のプラーク(plaque)をそれぞれと同時に圧縮成形し、得られた積層体を接着性について評価した。結合層はフルオロポリマー2に接着しなかった。結合層は、ブレンド2およびブレンド3に良好に接着した。結合層を剥離しようとすると、結合層内で凝集破壊が生じた。
以下の組み合わせを、Aが外側ジャケットであり、Bが結合層であり、CがライナーであるABC多層管へと同時押出成形した。内径0.25インチ、外径0.450インチの管を押出成形した。得られた壁厚は0.100である。
フルオロポリマー2は、上記の例に示す標準的なTHVコポリマーグレードと組み合わされたブレンドである。80A~55Dのショアデュロメータ有するTHVグレードが、テトラポリマーグレード(フルオロポリマー1)の代わりに使用される。
Claims (15)
- 多層管であって、
フルオロエラストマーであって約40MPa未満の曲げ弾性率を有するフルオロエラストマーを含む内層;
前記内層に隣接する結合層;および
前記結合層に隣接する外層であって非フルオロエラストマーを含む外層
を含む、多層管。 - 前記フルオロエラストマーが、少なくとも3つのモノマー単位を含み、前記モノマー単位が、フッ化ビニリデン、ヘキサフルオロプロピレン、テトラフルオロエチレン、パーフルオロビニルエーテル、エチレン、またはそれらの組み合わせを含む、請求項1に記載の多層管。
- 前記フルオロエラストマーが、少なくとも1つのハードセグメントおよび少なくとも1つのソフトセグメントを含むブロックコポリマーを含む、請求項2に記載の多層管。
- 前記少なくとも1つのハードセグメントが、テトラフルオロエチレン、エチレン、およびヘキサフルオロプロピレンのモノマー単位を含み、前記少なくとも1つのソフトセグメントが、フッ化ビニリデン、ヘキサフルオロプロピレン、およびテトラフルオロエチレンのモノマー単位を含む、請求項3に記載の多層管。
- 前記フルオロエラストマーが、テトラフルオロエチレン(TFE)、ヘキサフルオロプロピレン、フッ化ビニリデン、およびパーフルオロビニルエーテルのテトラポリマーを含む、請求項2に記載の多層管。
- 前記フルオロエラストマーが、テトラフルオロエチレン(TFE)とヘキサフルオロプロピレンとフッ化ビニリデンとのターポリマー、テトラフルオロエチレン(TFE)とヘキサフルオロプロピレンとフッ化ビニリデンとパーフルオロビニルエーテルとのテトラポリマー、またはこれらの組み合わせがブレンドされた前記ブロックコポリマーを含む、請求項3に記載の多層管。
- 前記フルオロエラストマーが、少なくとも67重量%、例えば少なくとも70重量%、又はさらには少なくとも73重量%、の公称ポリマーフッ素含有量を有する、請求項1に記載の多層管。
- 前記フルオロエラストマーが、約50%未満、例えば約30%未満、またはさらに約10%未満の結晶化度を有する、請求項1に記載の多層管。
- 前記フルオロエラストマーが、158°Fで168時間、約1~約14のpHを有する化学溶液中での体積変化率が20%以下、又はさらには15%以下である、請求項1に記載の多層管。
- 前記フルオロエラストマーが、73°Fで168時間の小分子製剤中での体積変化率が100%以下、例えば50%以下、又はさらには25%以下、である、請求項1に記載の多層管。
- 前記フルオロエラストマーが、73°Fで168時間の酸化剤中での体積変化率が30%以下、例えば20%以下、又はさらには10%以下、である、請求項1に記載の多層管。
- 前記非フルオロエラストマーが、熱可塑性ポリウレタン、熱硬化性ウレタン、ジエンエラストマー、スチレンブタジエンゴム、ポリオレフィンエラストマー、PVC、イソプレン、熱可塑性イソプレン複合体、天然ゴム、ブレンド、合金、またはそれらの任意の組み合わせを含む、請求項1に記載の多層管。
- 前記非フルオロエラストマーがジエンエラストマーを含み、前記ジエンエラストマーが、エチレン、プロピレンおよびジエンモノマー(EPDM)のコポリマー、熱可塑性EPDM複合体、またはそれらの組み合わせを含む、請求項12に記載の多層管。
- 前記結合層が、アクリラート、エポキシ、エステル、エチレン、アミン、アミド、TFE、VDF、HFP、パーフルオロビニルエーテル、またはそれらの組み合わせを含む少なくとも1つのモノマー単位を含む、請求項1に記載の多層管。
- 多層管を形成する方法であって、
フルオロエラストマーであって約40MPa未満の曲げ弾性率を有するフルオロエラストマーを含む内層を提供すること;
前記内層に隣接する結合層を提供すること;および
前記結合層に隣接する外層であって非フルオロエラストマーを含む外層を提供すること、
を含む、方法。
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US201962935968P | 2019-11-15 | 2019-11-15 | |
US62/935,968 | 2019-11-15 | ||
PCT/US2020/060402 WO2021097199A1 (en) | 2019-11-15 | 2020-11-13 | Multilayer tube and method for making same |
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JP2023502379A true JP2023502379A (ja) | 2023-01-24 |
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US (1) | US20210146669A1 (ja) |
EP (1) | EP4058281A1 (ja) |
JP (1) | JP2023502379A (ja) |
CN (1) | CN114728486A (ja) |
BR (1) | BR112022005214A2 (ja) |
WO (1) | WO2021097199A1 (ja) |
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- 2020-11-13 WO PCT/US2020/060402 patent/WO2021097199A1/en unknown
- 2020-11-13 JP JP2022528003A patent/JP2023502379A/ja active Pending
- 2020-11-13 CN CN202080078927.0A patent/CN114728486A/zh active Pending
- 2020-11-13 BR BR112022005214A patent/BR112022005214A2/pt unknown
- 2020-11-13 US US17/097,434 patent/US20210146669A1/en not_active Abandoned
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WO2021097199A1 (en) | 2021-05-20 |
EP4058281A1 (en) | 2022-09-21 |
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