| abstract |
The invention relates to a tubular structure for transporting heat transfer fluid, in particular refrigerant fluid, comprising at least: i) a layer (1) in contact with the fluid comprising at least one thermoplastic polymer P 1 that is semicrystalline with Tm 1 greater than or equal to 160°C in particular greater than or equal to 170°C as determined according to the standard 1 1357-3 (2013) or amorphous with Tg 1 greater than or equal to 100°C preferably 120°C in particular 140°C as determined according to the standard 1 1357-2 (2013), said layer (1) containing no fibers, ii) a layer (2) comprising at least: (a) a thermoplastic polymer P 2 that is semicrystalline, in particular a polyamide with Tm 2 greater than or equal to 170°C or amorphous with Tg 2 greater than or equal to 100°C, or a polyolefin with Tm greater than 100°C; (b) continuous fibers, the polymer P 2 being identical to P 1 or different from P 1 in which case the polymers P 1 and P 2 adhere at least partially to one another. |