| 摘要 |
The present invention is a polyolefin polymer containing vinyl groups at both ends thereof, and a composition and a molded product containing the polymer, wherein the polymer contains a constitutional unit derived from at least one selected from the group consisting of ethylene (a), an alpha-olefin (b) having 3 to 20 carbon atoms, and a cyclic olefin (c), and (1) a ratio of terminal vinylation is 70% or more relative to all of both ends of molecular chains, and (2) an intrinsic viscosity [eta] is in the range of 0.01 to 10 dl/g as measured in a decalin solution at 135° C. The polymer of the present invention may be molded by a LIM molding, an injection molding, a transfer molding, a compression molding, and the like, and is excellent in acid resistance, gas permeation resistance, hydrolysis resistance, and dynamic fatigue resistance. From the polymer, a thermoplastic resin composition and a crosslinkable resin composition, and a crosslinked composition having excellent mechanical characteristics are obtained.
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