| 摘要 |
<p>PURPOSE: To provide a polyamide pipe having an improved barrier action against diffusion of the substances being transported, in particular methanol- containing fuel, satisfactory dimensional stability and sufficient mechanical stability. CONSTITUTION: This pipe is comprised of an inner layer and outer layer based on a molding composition of polyamide, and both layers are bonded with each other by at least one intermediate layer comprising a molding composition based on linear crystalline polyester.</p> |
