| abstract |
Plastic duct composed of three layers, an inner layer (3) that adjoins the interior space (2), a central layer (4) that directly adjoins the inner layer (3) and an outer layer (5) that adjoins directly with the central layer (4), such that the inner layer (3) is made from a mixture of PA12 and PA612 or is essentially composed of it, such that the amount of PA612 is in the range of 20-40 percent by weight of the total molding mass of the inner layer (3), the central layer (4) is made from or is made essentially of PA612 and / or PA616, the outer layer (5) is made based on a mixture of PA12 and PA612 or is essentially composed of the same, such that the amount of PA612 is in the range of 20-40 percent by weight of the total molding mass of the outer layer (5). |