| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a polybutene-based resin excellent in resistance to thermal creep, and a molded article, e.g. a pipe, prepared therefrom. SOLUTION: This polybutene-based resin is a copolymer of 1-butene and anα-olefin. When the resin is subjected to temperature-rise elution fractionation(TREF), the ratio (A)/(B) of theα-olefin content (A) of a resin component eluted at 65 deg.C to that (B) of a resin component eluted at 55 deg.C is 0.7 or higher. The molded article, e.g. a pipe, is obtained by molding, e.g. by extruding, the resin.</p> |
