发明授权
- 专利标题: Metal tubing coated with multiple layers of polymeric materials
- 专利标题(中): 涂有多层聚合材料的金属管
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申请号: US806232申请日: 1997-02-24
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公开(公告)号: US5972450A公开(公告)日: 1999-10-26
- 发明人: Henry S. Hsich , Dennis C. Soles
- 申请人: Henry S. Hsich , Dennis C. Soles
- 申请人地址: MI Warren
- 专利权人: Bundy Corporation
- 当前专利权人: Bundy Corporation
- 当前专利权人地址: MI Warren
- 主分类号: F16L9/02
- IPC分类号: F16L9/02 ; B32B1/08 ; F16L9/147 ; F16L58/10 ; F16L9/133 ; F16L9/14
摘要:
A coated metal tubing arrangement comprises a metal tube. An inner layer of a first polymeric material is bonded to the tube to provide corrosion protection. The first polymeric material has a high crystallinity, a dampening factor of less than 0.05, and a flexural modulus of at least 100 MPa. An outer layer of a second polymeric material is extruded around the inner layer to absorb impact energies and to eliminate mechanical vibrations and acoustic noises. The second polymeric material has a dampening factor of at least 0.05 and a flexural modulus of less than 50 MPa. The second polymeric material is a multi-phase polymer having at least one polymer component with a glass-transition temperature below room temperature.
公开/授权文献
- US4713493A Power generating optical filter 公开/授权日:1987-12-15
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