| 摘要 |
PURPOSE:To provide a connector having a light weight and excellent performance by using a poly-3-methylbutene-1 resin composition including rubber-like alpha-olefin copolymer. CONSTITUTION:A P3MB1 resin composition includes rubber-like alpha-olefin copolymer and a P3MB1 resin. As a P3MB1 resin, a 3MB1 single polymer or a copolymer composed of 3MB1 and another kind of a-olefin having 2-20 carbon numbers is used. The content of alpha-olefin in the copolymer is generally 15wt.% or less, more preferably, is 10wt% or less. and its lower limit is generally 0.5wt.%. As a copolymer, a so-called random copolymer is preferably used, and more preferably, a random copolymer obtained by a two-stage polymerizing method where random copolymerizing processes are performed at two stages is used. |
