| abstract |
[PROBLEMS] To provide a rubber composition capable of producing a crosslinked product excellent in electrical insulation, mechanical strength, solvent resistance and oil resistance, and a crosslinked product excellent in these properties. An ethylene / α-olefin / nonconjugated polyene copolymer rubber (A) obtained by copolymerizing ethylene, an α-olefin having 3 to 20 carbon atoms, and a nonconjugated polyene; A modified ethylene / α-olefin copolymer (B) obtained by modifying a copolymer of 20 α-olefin (b) with a compound containing a polar group, a non-conductive filler (C), and a crosslinking A non-conductive filler, wherein the mass ratio [(A) / (B)] of the copolymer rubber (A) and the copolymer (B) is 95/5 to 50/50. The rubber composition whose content of (C) is 80-200 mass parts with respect to 100 mass parts of total amounts of the said copolymer rubber (A) and the said copolymer (B). [Selection figure] None |