Flexible pipe

摘要

The invention relates to a flexible pipe comprising at least one polymer layer, and at least one armoring layer unbounded to said polymer layer, wherein at least one polymer layer is a cationic clay containing polymer layer of a polymer material comprising a polymer matrix and from about 0.1 to about 5% by weight of at least one cationic clay silicate.;Preferred cationic clay silicates comprise kaolinite; smectite; Illite; chlorite; and synthetic cationic clays. The cationic clay silicate may e.g. be an organo-cationic clay.;The cationic clay silicate may preferably be exfoliated and/or intercalated in the polymer matrix.;The polymer layer may preferably comprise an inner liner, a thermally insulating layer, an anti-wear layer and/or an outer sheath or a sub-layer thereof.

主权项

1. An unbonded flexible pipe for use in offshore transportation of oil products and gas products, the flexible pipe comprising at least one polymer layer including an inner liner, and at least one armouring layer on an outer side of and unbonded to said inner liner, which is a cationic clay silicate containing polymer layer of a polymer material comprising a polymer matrix and from about 0.1 to about 4% by weight of at least one cationic clay silicate, wherein said at least one cationic clay silicate is in the form of platelets having a thickness of about 10 nm or less.