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公开(公告)号:US11465395B2
公开(公告)日:2022-10-11
申请号:US16879400
申请日:2020-05-20
摘要: A multilayer flexible tube includes an inner layer including a melt processable fluoropolymer, wherein the melt processable fluoropolymer includes a terpolymer including a tetrafluoroethylene, a hexafluoropropylene, and a vinylidene fluoride (THV); a tie layer including a polymeric blend of a terpolymer including a tetrafluoroethylene, a hexafluoropropylene, and a vinylidene fluoride (THV) with a poly vinylidene fluoride (PVDF), a polyamide, a polyetheramide block copolymer, or combination thereof; and an outer layer including a melt processable polymer having a shore hardness less than a shore hardness of the inner layer.
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公开(公告)号:US12129938B2
公开(公告)日:2024-10-29
申请号:US17823266
申请日:2022-08-30
发明人: Qiaoxi Li , Jessica Kenepp , James Ludlow , Cody Gleason , Gayla Lyon , Jiezhu Jin
摘要: A multilayer tube includes: an inner layer including a polymer, wherein the polymer includes a fluoropolymer, a polyolefin, a blend thereof, or combination thereof; and an outer layer adjacent to the inner layer, wherein the outer layer includes a polymer including a fluoropolymer, a polyolefin, a blend thereof, or combination thereof; wherein the inner layer, the outer layer, or combination thereof includes at least one blocking agent, wherein the at least one blocking agent reduces the percent transmission by at least 99% at wavelengths between 240 nm to 450 nm.
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公开(公告)号:US20190283359A1
公开(公告)日:2019-09-19
申请号:US16358535
申请日:2019-03-19
发明人: James Ludlow
摘要: The present disclosure relates generally to polymer-based tubing, suitable, for example, for conducting hydrocarbon fuels. The present disclosure relates more particularly to multi-layered tubings that are fuel resistant, flexible, and cost effective.
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公开(公告)号:US10801649B2
公开(公告)日:2020-10-13
申请号:US16146957
申请日:2018-09-28
发明人: James Ludlow , Kevin M. McCauley
摘要: The present disclosure relates to multi-layered tubings that are fuel resistant and resistant to delamination. In one aspect, the disclosure provides a length of tubing having an annular cross-section including an annular fluoropolymer layer formed from at least 75 wt % fluoropolymer (e.g., at least 75 wt % of a PVDF polymer), the fluoropolymer layer having an outer surface and an inner surface; and disposed about the fluoropolymer layer, an annular thermoplastic layer formed from at least 75 wt % thermoplastic (e.g., thermoplastic polyurethane, thermoplastic polyamide and/or thermoplastic polyester), the thermoplastic polyurethane layer having an inner surface in contact with the outer surface of the fluoropolymer layer and an outer surface, wherein the fluoropolymer layer is covalently bound to the thermoplastic polyurethane layer, for example, by electron beam treatment.
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公开(公告)号:US20190093796A1
公开(公告)日:2019-03-28
申请号:US16146957
申请日:2018-09-28
发明人: James Ludlow , Kevin M. McCauley
CPC分类号: F16L11/04 , B32B1/08 , B32B27/08 , B32B27/16 , B32B2597/00 , F16L2011/047
摘要: The present disclosure relates to multi-layered tubings that are fuel resistant and resistant to delamination. In one aspect, the disclosure provides a length of tubing having an annular cross-section including an annular fluoropolymer layer formed from at least 75 wt % fluoropolymer (e.g., at least 75 wt % of a PVDF polymer), the fluoropolymer layer having an outer surface and an inner surface; and disposed about the fluoropolymer layer, an annular thermoplastic layer formed from at least 75 wt % thermoplastic (e.g., thermoplastic polyurethane, thermoplastic polyamide and/or thermoplastic polyester), the thermoplastic polyurethane layer having an inner surface in contact with the outer surface of the fluoropolymer layer and an outer surface, wherein the fluoropolymer layer is covalently bound to the thermoplastic polyurethane layer, for example, by electron beam treatment.
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公开(公告)号:US20210094253A1
公开(公告)日:2021-04-01
申请号:US17032891
申请日:2020-09-25
发明人: Kevin M. McCauley , Michael J. Tzivanis , Charles S. Golub , Mark F. Colton , Lily Lei , Gerald H. Ling , James Ludlow
摘要: A multilayer tube includes an inner layer including a crosslinked fluoroelastomer rubber; and an outer layer including a crosslinked non-fluoroelastomer rubber, wherein the multilayer tube has a shore A hardness of about 40 to about 90.
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公开(公告)号:US10295089B2
公开(公告)日:2019-05-21
申请号:US15582068
申请日:2017-04-28
发明人: Wayne Edward Garver , James Ludlow , Gerald H. Ling , Charles S. Golub , Kathryn J. Morris , Mark F. Colton
IPC分类号: F16L11/04 , B32B1/08 , B32B27/30 , B32B7/02 , F16L11/12 , B29C47/00 , B32B7/12 , B29C47/06 , B32B27/08 , B32B27/18 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/40 , B29L23/00 , B29K27/00 , B29C53/82
摘要: A multilayer flexible tube includes an inner layer including a melt processable fluoropolymer, wherein the fluoropolymer includes a copolymer of a poly vinylidene fluoride (PVDF) and a hexafluoropropylene (HFP); and an outer layer including a melt processable polymer having a shore hardness less than a shore hardness of the inner layer, wherein the multilayer flexible tube has a maximum storage modulus of at least 300 MegaPascal (MPa) at a temperature of about −10° C.
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公开(公告)号:US11933430B2
公开(公告)日:2024-03-19
申请号:US17663882
申请日:2022-05-18
发明人: Michael J. Tzivanis , James Ludlow
CPC分类号: F16L11/04 , B32B1/08 , B32B7/12 , B32B27/08 , B32B37/153 , B32B2310/08 , B32B2597/00
摘要: A composite tube includes a first layer including a cross-linked polyolefin elastomer, wherein the first layer is configured for fluid contact; and a second layer adjacent to the first layer, the second layer including an elastomer.
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公开(公告)号:US20190283375A1
公开(公告)日:2019-09-19
申请号:US16358571
申请日:2019-03-19
发明人: James Ludlow
摘要: The present disclosure relates generally to polymer-based tubing, suitable, for example, for conducting hydrocarbon fuels. The present disclosure relates more particularly to multi-layered tubings that are fuel resistant, flexible, and cost effective.
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