| abstract |
(57) Abstract: A novel ethylene random copolymer excellent in both mechanical properties and processing properties and a vulcanization / crosslinking composition containing the copolymer are provided. Means for Solving the Problems The ethylene-based random copolymer is It is composed of ethylene, α-olefin having 6 or more carbon atoms and non-conjugated diene, and (1) has an α-olefin content of 5 to 95. % By weight, (2) iodine value of 0.5 to 50, (3) number average molecular weight (Mn) of 30,000 to 300,000, ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) (M w / Mn) is 3.5 to 20, (4) Crystallinity is 0 to 20 Meet%. The composition comprises the above-mentioned copolymer, a vulcanizing agent and / or Alternatively, it contains a crosslinking agent. |