Patent ID: 8097316

Claim:
A laminate resin tube formed by laminating a plurality of component resin tubes each of a thermoplastic resin, wherein at least one of the component resin tubes is a first low-permeable barrier tube of polyamide 9 T, and the rest of the component resin tubes include a resin tube of a material containing polyamide 6 or polyamide 66 as a principal component, wherein the component resin tube contiguous with an outside surface of the first low-permeable barrier tube and the component resin tube contiguous with an inside surface of the first low-permeable barrier tube are made of a thermoplastic resin containing a polyamide resin as a principal component, and wherein the component resin tube contiguous with the outside surface of the first low-permeable barrier tube is an outermost impact-resistant resin tube made of a material prepared by fusing polyamide 11 or polyamide 12 not containing any elastomer as a base resin, and polyamide 11 or polyamide 12 containing an elastomer to enhance a dispersion of the elastomer.