| 摘要 |
PROBLEM TO BE SOLVED: To provide an olefin polymer useful for a polyolefin composite material field and a manufacturing field of a compatibilizer to easily make a design of a composite material. SOLUTION: The olefin polymer comprises block bonding a polymer chain (I) comprising at least one monomer selected from among ethylene, a 3-20Cα-olefin, a cyclic olefin, styrene and its derivatives, and still another polymer chain (II) comprising at least one monomer selected from among the ethylene, the 3-20Cα-olefin, the cyclic olefin, the styrene, and its derivatives, the polymer chain (I) differing from the polymer chain (II) in at least one among a kind of the monomer, stereoregularity, and a copolymerization composition [but, except when only the styrene exists in both the polymer chain (I) and the polymer chain (II)], and having a graft structure based on a macromonomer.
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