| abstract |
(57) [Summary] [Object] An object of the present invention is to impart high elasticity and high electrical resistance to a rubber hose formed of a rubber compound of a carbon black compounding system. According to the present invention, 50 parts by weight or more and 150 parts by weight of carbon black are used with respect to 100 parts by weight of a rubber component of at least one rubber selected from the group consisting of diene synthetic rubber, acrylic rubber and ethylene propylene synthetic rubber. To give high elasticity, and by further mixing an insulating inorganic filler and a softening agent for rubber to make the volume fraction of carbon black in the compounded rubber 10% or more and less than 25%, a conductive path It is characterized by widening the distance between the carbon black particles, which serve as, to impart high electrical resistance. |