FLEXIBLE UNDERWATER PIPE COMPRISING A WEAR-RESISTANT POLYPROPYLENE HOMOPOLYMER LAYER

• Main Authors: DEMANZE, Frederic, MAURICE, Julien
• Format: Patent
• Language: English
• Published: 07.12.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The application relates to a flexible underwater pipe for hydrocarbon transport, comprising at least two reinforcing layers separated by a wear-resistant layer of polymeric material, each of said reinforcing layers being produced by helically winding a longitudinal element made of metal or a composite material, said wear-resistant layer being produced by helically winding at least one strip of said polymeric material, the polymeric material comprising a specific polypropylene homopolymer, to the method for preparing same and to the use thereof for transporting fluids. The application also relates to the use of the specific polypropylene homopolymer as the polymeric material of the strip of the wear-resistant layer to improve its creep resistance.