| abstract |
PROBLEM TO BE SOLVED: To provide a cross copolymer containing a polyene in a cross chain, which has improved crosslinkability and graft modification properties, and an excellent method for producing the same. An olefin-aromatic vinyl compound-diene copolymer having an aromatic vinyl compound content of 0 mol% or more and 96 mol% or less, a diene content of 0.0001 mol% or more and 3 mol% or less, and a balance of olefins. Olefin-aromatic vinyl compound-diene cross-copolymer obtained by cross-copolymerizing a polyene and, if necessary, a vinyl compound, wherein the polyene content in the copolymer is 3 mol% A method for producing a polyene-containing cross copolymer, which is higher. |