Patent ID: 8747951

Claim:
A method for manufacturing a hose having a protector layer formed on an outer periphery of a tubular polyamide resin layer, the method comprising steps of: preparing an unvulcanized rubber composition for forming the protector layer by separately preparing a first rubber material that contains following components (A) to (C): (A) ethylene-propylene rubber (B) sulfur (C) thiuram vulcanization accelerator with the melting point of 66 to 105° C., and a second rubber material that contains following components (a) and (b) but does not contain sulfur as a vulcanization agent: (a) ethylene-propylene rubber (b) vulcanization accelerator with the melting point of 120° C. or higher, wherein the vulcanization accelerator is selected from a group consisting of dithiocarbamate vulcanization accelerator, thiazole vulcanization accelerator and xanthate vulcanization accelerator; mixing the first rubber material and the second rubber material in a mixer to prepare the unvulcanized rubber composition for forming the protector layer; and forming the protector layer by continuously vulcanizing the unvulcanized rubber composition after the unvulcanized rubber composition is continuously extruded onto the outer periphery of the previously formed polyamide resin layer.