Patent ID: 8210213

Claim:
A multilayer tube comprising at least the following three layers: an inner layer contactable with a fuel component, a barrier layer preventing permeation of the fuel component, and an outermost layer, wherein the inner layer comprises a poly(butylene terephthalate) resin composition containing (A) a poly(butylene terephthalate) resin, (B) an elastomer component comprising an acrylic core-shell elastomer free from a diene component, and (C) an aromatic polycarbodiimide compound, the barrier layer comprises a polyester resin composition, and the outermost layer comprises a poly(butylene terephthalate) resin composition containing (A) a poly(butylene terephthalate) resin comprising (A1) at least one member selected from the group consisting of a poly(butylene terephthalate) homopolymer and a poly(butylene terephthalate) copolymer, and (A2) a polyester elastomer, (B) an elastomer component comprising an acrylic core-shell elastomer free from a diene component, (C) an aromatic polycarbodiimide compound, and (D) an antioxidant.