Pipes containing nanoclays and method for their manufacture

Details Pipes containing nanoclays and method for their manufacture Pipes containing nanoclays and method for their manufacture

C - Chemistry, Metallurgy

08

L

C08L 23/06 (2006.01) C08K 7/04 (2006.01) C08K 9/04 (2006.01) C08L 23/08 (2006.01) C08L 51/06 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2661947

A pipe or comprising a melt-mixed blend of polyamide and incompatible polyolefin and a compatibilizing agent where the polyamide exists as a discontinuous phase that is dispersed in a polyolefin matrix and wherein nanoclay is exfoliated in the polyamide phase. The pipe has enhanced resistance to the permeation of hydrocarbons relative to polyethylene. A method for making a pipe having enhanced resistance to the permeation of hydrocarbons.

La présente invention concerne un tuyau comprenant un mélange obtenu par fusion, de polyamide et de polyoléfine incompatible, ainsi qu'un agent compatibilisant, le polyamide se présentant sous la forme d'une phase discontinue dispersée dans une matrice de polyoléfine, une nanoargile étant exfoliée dans la phase polyamide. Ce tuyau présente une plus grande résistance à la pénétration des hydrocarbures par rapport au polyéthylène. Cette invention concerne également un procédé de fabrication d'un tuyau présentant une plus grande résistance à la pénétration des hydrocarbures.

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