Patent ID: 8409682

Claim:
A heat-resistant air hose for a diesel engine comprising a tubular inner layer and an outer layer formed on an outer peripheral surface of the inner layer, wherein a material for forming the inner layer comprises peroxide-crosslinkable ethylene acrylic rubber and peroxide crosslinking agent and excludes an acid receiver, and a material for forming the outer layer comprises a non-peroxide-crosslinkable ethylene acrylic rubber, a non-peroxide-crosslinking agent and a non-halogen flame retardant, wherein the non-halogen flame retardant is present at not less than 60 and less than 80 parts by weight based on 100 parts by weight of the non-peroxide-crosslinkable ethylene acrylic rubber, and wherein the non-halogen flame retardant is surface-treated metal hydroxide being formed by surface treating aluminium hydroxide.