AUTOMOTIVE FUEL HOSE
DRIVE
August 10, 2011
An automotive fuel hose comprising an inner layer (2), a lower fuel permeability layer (3) and an outer layer (4) provided in this order on an outer peripheral surface of an innermost layer (1) of a fluororesin, wherein the inner layer (2) and the outer layer (4) are each composed of an amine-modified polyamide resin, wherein the lower fuel permeability layer (3) is composed of a resin composition comprising the following components (A) to (D): (A) a polyphenylenesulfide resin as a major component; (B) an acid-modified polyolefin resin; (C) an unmodified polyolefin resin; and (D) an epoxy resin, wherein the proportion of the component (B) in the resin composition is 4 to 12 wt% and the proportion of the component (C) in the resin composition is 4 to 12 wt%, wherein the proportion of the component (D) in the resin composition is 1.5 to 5 wt%, wherein the total proportion of the components (B) and (C) is 12 to 24 wt% and the mixing weight ratio of the components (B) and (C) is (B) / (C) = 3/1 to 1/3, wherein the lower fuel permeability layer (3) is bonded to the inner layer (2) and the outer layer (4) through a chemical reaction.
Discussion in the ATmosphere