| 摘要 |
PURPOSE:To form a branched alpha-olefin polymer composition excellent in melt flow, moldability and melt tension, by polymerizing two branched alpha-olefin polymers comprising a specified branched alpha-olefin and a specified linear alpha-olefin and having different intrinsic viscosities at a specified polymerization ratio. CONSTITUTION:This branched alpha-olefin polymer composition is formed by polymerizing the following branched alpha-olefin polymer [I] with the following branched alpha-olefin polymer [II] at a polymerization ratio [I]/[II] in the range of 1/99-60/40, polymer [I]: a polymer substantially composed of 80-100mol% repeating units A derived from a 5-10C branched alpha-olefin having a branch in position 3 or above and 0-20mol% repeating units B derived from a 2-20C linear alpha-olefin and having an intrinsic viscosity [eta]H of 5-30dl/g as determined in decalin at 135 deg.C, and a polymer [II]: having the same composition as that of [I] and an [eta]L of 1-10dl/g as determined in the same way and a ratio, [eta]H/[eta]L, of 2-30. |
