Polymeric pipes and liners made from blends of polyolefins...

Details Polymeric pipes and liners made from blends of polyolefins... Polymeric pipes and liners made from blends of polyolefins...

C - Chemistry, Metallurgy

08

L

C08L 23/02 (2006.01) C08L 23/04 (2006.01) F16L 55/165 (2006.01) C08L 51/06 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2502834

A pipe or liner for use in the oil and gas industry that comprises a melt- mixed bend of polyamide and incompatible polyolefin and a compatibilizing agent where the polyamide exists as a discontinuous phase that is dispersed in a polyolefin matrix. The pipe or liner has enhanced resistance to the permeation of hydrocarbons relative to polyethylene.

L'invention porte sur des tubes et doublages pour l'industrie pétrolière faits d'un mélange obtenu à l'état fondu de polyamide, de polyoléfine incompatible et d'un agent compatibilisant, le polyamide existant en tant que phase discontinue dispersée dans une matrice de polyoléfine. De tels tubes ou doublages présentent une meilleure résistance à la perméation des hydrocarbures que le polyéthylène.

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