| 摘要 |
<p>Disclosed is flexible tubing and reinforced hose having a composite core tube that is provided with a composite wall comprising an inner annular layer of thermoplastic polyethylene and an outer annular layer of thermoplastic rubber material that is preferably melt fused to the inner layer. The polyethylene layer provides a barrier against penetration of moisture into fluid being conveyed through the tubing or hose and the rubber layer permits reduction of the wall thickness of the polyethylene layer so as to improve flexibility and reduce tendency to kink when bent as well as enabling the hose reinforcement to be secured tightly to the polyethylene inner layer by being bonded to the rubber outer layer which, if absent, would have otherwise been extremely difficult if not impossible to achieve using conventional manufacturing techniques.</p> |
