| abstract |
PROBLEM TO BE SOLVED: To produce a mandrel crack by manufacturing using a mandrel, excellent in mechanical properties such as high tensile strength and low compression set, and in addition to static ozone resistance, ozone resistance after fuel oil extraction To provide a hose having high weather resistance such as safety. SOLUTION: A molding step for molding a crosslinkable rubber composition into a cylindrical shape, an insertion step for inserting a mandrel into the crosslinkable rubber composition molded into a cylindrical shape to fix the cylindrical shape, and a cylindrical shape A hose manufactured by a manufacturing method having a crosslinking step of crosslinking a crosslinkable rubber composition fixed to a nitrile group-containing copolymer rubber (1) of 40 to 90% by weight. And 60-10% by weight of a crosslinkable rubber (2) having a glass transition temperature of 20 ° C. or lower and substantially independent of double bonds, and the nitrile group-containing copolymer rubber (1) and the crosslinkable A hose comprising a crosslinking agent (3) capable of crosslinking both rubbers (2). [Selection figure] None |