SUBMARINE PIPE COMPRISING A SHEATH COMPRISING A POLYPROPYLENE HOMOPOLYMER

The invention relates to an underwater pipe, comprising a metal reinforcing layer (8) around an inner polymeric sealing sheath capable of being in contact with hydrocarbons, characterized in that the inner polymeric sealing sheath comprises a homopolymeric polypropylene or a mixture of homopolymeric...

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Bibliographic Details
Main Author DEMANZE, Frederic
Format Patent
LanguageEnglish
Published 18.07.2022
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
JOINTS OR FITTINGS FOR PIPES
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PIPES
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
TRANSPORTING
WEAPONS
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Summary:The invention relates to an underwater pipe, comprising a metal reinforcing layer (8) around an inner polymeric sealing sheath capable of being in contact with hydrocarbons, characterized in that the inner polymeric sealing sheath comprises a homopolymeric polypropylene or a mixture of homopolymeric polypropylenes, wherein the homopolymeric polypropylene or the mixture has a density greater than 0.900 g/cm3, and a melt index measured at 230?C under a mass of 2.16 kg of less than 10 g/10 minutes, its preparation method and its use for the transport of hydrocarbons. Such a sheath may be used in contact with hydrocarbons at high temperature. (Figure 1)
Bibliography:Application Number: MY2018PI01695