| 摘要 |
A multilayer pipe for hydrocarbon-containing fluids, particularly fluids for internal combustion engines, includes at least four coextruded layers, wherein a first layer contains essentially polyamide and a second layer contains essentially a polyolefin copolymer. For improving the diffusion blocking capability, particularly relative to gasoline, and a higher thermal stability, a third layer contains essentially a thermoplastic polyester and a fourth layer contains essentially a thermoplastic etherester elastomer (TEEE) or a thermoplastic polyester elastomer.
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