CPC F16L 9/12 (2013.01) [B29C 55/005 (2013.01); B29C 55/26 (2013.01); B29K 2023/16 (2013.01); B29L 2023/22 (2013.01)] | 19 Claims |
1. A biaxially oriented pipe made of a polymer composition comprising a propylene-based polymer, wherein the propylene-based polymer comprises a random copolymer of propylene and a comonomer which is ethylene and/or an α-olefin having 4 to 10 carbon atoms, wherein the propylene-based polymer has a comonomer content of 0.1 to 3.8 wt % based on the propylene-based polymer, wherein the pipe has a time to failure of at least 100 hours according to ISO 1167-1 determined at a stress level of 20 MPa and a temperature of 20° C.
|