MULTILAYER STRUCTURE AND MULTILAYER FORMED ARTICLE

摘要

A multilayer structure comprising at least two or more layers including a layer (a) comprising (A) polyamide 11 and/or polyamide 12, and a layer (b) comprising (B) a polyamide (polyamide 9N) consisting of a dicarboxylic acid unit comprising a naphthalenedicarboxylic acid unit in a proportion of 50 mol% or more based on all dicarboxylic acid units and a diamine unit comprising a 1,9-nonanediamine and/or 2-methyl-1,8-octanediamine unit in a proportion of 60 mol% or more based on all diamine units. A multilayer structure excellent in the alcohol gasoline permeation-preventing properties, interlayer adhesion, low-temperature impact resistance and heat resistance is provided.