FLEXIBLE TUBE HAVING HIGH TEMPERATURE RESISTANCE
The invention relates to a flexible tube of multilayer construction and having unbonded layers, having an inner cladding comprising the following layers: a) at least one layer of a material made of a molding compound on the basis of a polymer selected from the group: polyarylene ether ketone, polyphenyl sulfone, polyphenylene sulfide, polyarylene ether ketone/polyphenylene sulfide blend and partially aromatic polyamide; the dicarbolic acid content thereof arising from 5 to 100% mol of aromatic dicarbolic acid having 8 to 22 C atoms, and having a crystallite melting point Tm of at least 260 °C; b) at least one layer, the material thereof being made of a fluoropolymer molding compound and being able to be operated at temperatures above 130 °C. The tube is particularly suitable for offshore application in oil and gas extraction.