CONDUITE SOUS-MARINE COMPRENANT UNE GAINE COMPRENANT UN COPOLYMERE BLOC DU POLYPROPYLENE

An underwater pipe including a metal reinforcing layer around an inner polymeric sealing sheath which may be in contact with hydrocarbons. The inner polymeric sealing sheath includes a polypropylene block copolymer or a mixture of polypropylene block copolymers, wherein the polypropylene block copol...

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Bibliographic Details
Main Author DEMANZE, FREDERIC
Format Patent
LanguageFrench
Published 04.05.2018
Subjects
BLASTING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PIPES
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THEIR PREPARATION OR CHEMICAL WORKING-UP
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:An underwater pipe including a metal reinforcing layer around an inner polymeric sealing sheath which may be in contact with hydrocarbons. The inner polymeric sealing sheath includes a polypropylene block copolymer or a mixture of polypropylene block copolymers, wherein the polypropylene block copolymer 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.
Bibliography:Application Number: FR20160053015