| 摘要 |
A multi-layered thermoplastic laminate (4) which forms a hollow member, consists of an inner layer (1) based on polyamides, at least one intermediate layer (2), and at least one thermoplastic outer layer (3). The inner layer consists of a mixture based on various polyamide homopolymers, and contains a tolerating agent. The inner layer primary polyamide homopolymer consists of polyamide 6 and polyamide 66, while the second component consists of polyamide 12, polyamide 11, polyamide 1010, polyamide 1212 and polyamide 1012. The inner layer material is produced at a compounding temperature of up to 280oC and at an extrusion temperature of up to 280oC. The weight ration of the primary component to the secondary component is 2:3 to 3:2. The laminate is in the form of a pipe and the inner layer contains electrically conducting additives. The laminate has an inner hollow section (5).
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