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

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

C - Chemistry, Metallurgy

08

L

C08L 23/04 (2006.01) F16L 9/12 (2006.01)

Patent

CA 2541865

A pipe that comprises a melt-mixed bend of vinyl alcohol polymer and incompatible polyolefin and a compatibilizing agent where the vinyl alcohol polymer exists as a discontinuous phase that is dispersed in a polyolefin matrix. The pipe has enhanced resistance to the permeation of hydrocarbons and hydrocarbon/alcohol mixtures relative to polyethylene.

L'invention concerne une conduite qui comprend un mélange, travaillé en fusion, de polymère d'alcool vinylique et de polyoléfine incompatible, et un agent de comptabilité, sachant que le polymère est en phase discontinue dispersée dans une matrice de polyoléfine. Cette conduite a une résistance accrue à la perméation des hydrocarbures et des mélanges hydrocarbure/alcool par rapport au polyéthylène.

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