- 专利标题: MULTI-LAYER AUTOMOTIVE TUBE
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申请号: US17367653申请日: 2021-07-06
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公开(公告)号: US20210332915A1公开(公告)日: 2021-10-28
- 发明人: Breno ABREU MEDEIROS
- 申请人: Sumitomo Riko Company Limited
- 申请人地址: JP Aichi
- 专利权人: Sumitomo Riko Company Limited
- 当前专利权人: Sumitomo Riko Company Limited
- 当前专利权人地址: JP Aichi
- 优先权: BR1020190040998 20190227
- 主分类号: F16L11/04
- IPC分类号: F16L11/04 ; B32B1/08 ; B32B27/34 ; B32B27/40 ; B32B27/30 ; B32B27/08 ; F16L11/12
摘要:
The disclosure introduces a multi-layer automotive tube, said layers comprising an inner layer made of thermoplastic polyurethane (TPU); a first intermediate layer made of ethylene vinyl alcohol (EVOH); a second intermediate layer made of polyamide and an outer layer made of polyamide. The inner layer made of TPU provides excellent chemical stability and is significantly less susceptible to degradation caused by frequent contact with fuels and/or fuel vapors. Said automotive tube can be produced using methods widely known in the prior art, such that industrial lines for producing said automotive tube can be adapted without great difficulty.
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