MULTILAYER PLASTIC TUBE AND TRANSPORT TUBE MADE OF SAID TUBE FOR CHEMICALS, ETC.

摘要

PURPOSE: To obtain a polyamide pipe having good barrier action to methanol- containing fuel and satisfactory mechanical load resistance by forming a multilayered plastic pipe from an outer layer based on polyamide and a layer comprising a material based on crystalline polyester. CONSTITUTION: A multilayered plastic pipe consists of at least one outer layer based on a molding material based on polyamide and at least one layer of a molding material based on a mixture consisting of 99-60 wt.% of semi- crystalline thermoplastic polyester and 1-40 wt.% of a compd. having two isocyanate groups and is characterized by that the isocyanate groups are contained in a concn. of 0.03-3 wt.% and the layers are mutually bonded in a frictional connection state.