USE OF A POLYAMIDE BASED COMPOSITION FOR FLEXIBLE PIPES FOR CONVEYING CRUDE OIL OR GAS AND FLEXIBLE PIPE USING SUCH COMPOSITION

摘要

The invention relates to the use of a composition that contains from 70 to 91 wt % of at least one semi-crystalline polyamide, from 5 to 25 wt % of a polyolefin having an epoxy, anhydride or acid function introduced by grafting or copolymerisation, and from 4 to 20 wt % of a plasticizer in the production of flexible pipes used in the exploitation of crude oil or gas deposits under the sea. The invention also relates to a flexible pipe to be used in the exploitation of crude oil or gas deposits under the sea that comprises at least one layer obtained from such a composition.