| abstract |
A nitrile rubber solution prepared by dissolving and dispersing into an organic solvent a nitrile rubber composition comprising 100 parts by weight of nitrile rubber, 40 parts by weight or more of carbon black having a DBP oil absorption amount of 30-100 ml/100 g (according to ASTM D1765-91), 15-100 parts by weight of silica having particle sizes of 0.01-0.1 μm, 0-40 parts by weight of other inorganic filler than the carbon black and silica, and 5-20 parts by weight of an organic peroxide, and preferably further containing 2-10 parts by weight of a silane coupling agent is applied to an adhesive layer on one side or both sides of a metallic sheet, followed by vulcanizing the coated layer, thereby forming a rubber layer. |