| abstract |
Multilayer tubular film based on polyamide comprising n an outer polymer layer based on aliphatic or partially aromatic polyamides or copolyamides or blends thereof, up to 30% by weight of which, based on the outer layer, can be replaced by other polymers, n a middle polyamide layer based on n ethylene-C 1-8 -alkyl acrylate copolymers and n ethylene-maleic anhydride copolymers and/or ethylene-C 1-8 -alkyl acrylate-maleic anhydride copolymers, n up to 20% by weight of which, based on the middle layer, can be replaced by other polymers, n an inner polymer layer based on 40 to 100% by weight, based on the inner layer, of aliphatic or partially aromatic polyamides or copolyamides or blends thereof, 0 to 60% by weight of carboxyl-containing ethylene copolymers or their salts and 0 to 20% by weight of other polymers, the total amount of which gives 100% by weight. |