RUBBER COMPOSITION AND AUTOMOTIVE FUEL TRANSPORT HOSE

摘要

A plasticizer having a specific value of SP and a specific molecular weight is incorporated into either an NBR having a given AN content in an extremely-high-AN-content region or an NBR/PVC blend obtained by blending the NBR with less than 25 wt.% PVC, in an amount which balances with the AN amount in the NBR. The automotive fuel hose comprises a combination of an inner layer made of the rubber composition and an outer layer made of a rubber material combining resistance to ozone with resistance to vulcanization yielding. The rubber composition is satisfactory in fuel impermeability and low-temperature properties and has excellent electrical conductivity. The automotive fuel hose also is satisfactory in fuel impermeability and low-temperature properties and has excellent electrical conductivity.