| abstract |
A flexible hose or a pipe having a polyamide barrier layer 6 having an impact modifier and / or a branched molecular structure, a flexural modulus of 1 to 2 GPa and / or a tensile elongation of 100% or more . The hose may have additional layers, such as an inner HNBR rubber tube, an outer shell of an EVM / CPE mixture, a textile or wire reinforcement or the like. The permeability to fluids with ethanol and methanol content is very low. The permeability to biofuels B20 is very low. |