Multi-layer resinous tube and multi-layer resinous container

摘要

A multi-layer resinous tube (1A;1B;1C) or container includes a PBN copolymer layer (1b,3b) formed as a fuel permeation-interrupting layer and containing a copolymer of polybutylene naphthalate and polybutylene terephthalate. Another layer (1a,1c,3a,3c,3d,3e) other than the PBN copolymer layer is provided containing at least one of polyester resin or polyester copolymer elastomer.