Metal tubing coated with multiple layers of polymeric materials

作者: Dennis C. Soles , Henry S. Hsich

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摘要: A coated metal tubing arrangement comprises a tube (10). An inner layer (12) of first polymeric material is bonded to the (10) provide corrosion protection. The has high crystallinity, dampening factor less than 0.05, and flexural modulus at least 100 MPa. outer (14) second extruded around absorb impact energies eliminate mechanical vibrations acoustic noises. 0.05 50 multi-phase polymer having one component with glass-transition temperature below room temperature.