FUEL HOSE

摘要

A fuel hose excellent in calcium chloride resistance, can achieve both low fuel permeability and a pulsation-reducing property, and is excellent in interlayer adhesiveness as well. The fuel hose includes: an inner layer (1) formed of a specific resin, such as polyamide 9T; an intermediate layer (2) formed of the following component (B), which is arranged in contact with an outer peripheral surface of the inner layer (1); and an outer layer (3) formed of the following component (C), which is arranged in contact with an outer peripheral surface of the intermediate layer (2), in which the layers are bonded to each other: (B) a polyamide terpolymer having copolymerized therein the following components (b1), (b2), and (b3): (b1) polyamide 6; (b2) at least one selected from polyamide 66 and polyamide 610; and (b3) polyamide 12; (C) an aliphatic polyamide resin except for polyamide 6 and polyamide 66.

主权项

1. A fuel hose, comprising:
a tube-shaped inner layer formed of a component (A); an intermediate layer formed of a component (B), which is arranged in contact with an outer peripheral surface of the inner layer; and an outer layer formed of a component (C), which is arranged in contact with an outer peripheral surface of the intermediate layer, wherein the layers are bonded to each other; wherein the component (A) is at least one selected from the group consisting of polyamide 9T, an ethylene-vinyl alcohol copolymer resin, an acid-modified ethylene-tetrafluoroethylene copolymer, and acid-modified polyethylene; wherein the component (B) is a polyamide terpolymer having copolymerized therein the following components (b1), (b2), and (b3):
(b1) polyamide 6;
(b2) at least one selected from polyamide 66 and polyamide 610; and(b3) polyamide 12; and wherein the component (C) is an aliphatic polyamide resin, wherein the aliphatic polyamide resin does not contain any of polyamide 6 and polyamide 66.