发明申请
- 专利标题： COMPRESSED-AIR BRAKE LINE
- 专利标题（中）： 压缩空气制动线
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申请号： US14276158申请日： 2014-05-13
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公开(公告)号： US20140338780A1公开(公告)日： 2014-11-20
- 发明人: Michael Beyer , Klaus Gahlmann , Michael Boeer , Karl Kuhmann
- 申请人： Michael Beyer , Klaus Gahlmann , Michael Boeer , Karl Kuhmann
- 申请人地址： DE Essen
- 专利权人： Evonik Industries AG
- 当前专利权人： Evonik Industries AG
- 当前专利权人地址： DE Essen
- 优先权： DE102013209126.5 20130516
- 主分类号： F16L9/133
- IPC分类号： F16L9/133 ; B60T17/04
摘要：
A compressed-air brake line which comprises: I) an external layer made of a moulding composition which comprises at least 50% by weight of PA11 and/or PA12, and II) an internal layer made of a moulding composition which comprises at least 50% by weight of polyamide whose monomer units comprise on average at least 8 C atoms is provided. Layer II) does not contain PA11 and/or PA12. The compressed-air brake line has high bursting strength even at elevated temperature, good low-temperature impact resistance, good ageing resistance, and can be produced at low cost.
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