| 摘要 |
PROBLEM TO BE SOLVED: To prevent a problem that polymer particles adhere to each other when moldability is enhanced by increasing melt flow property (MFR) of a polymer in a propylene-based α-olefin block copolymer of a soft polymer, to efficiently remove residual volatile components from the polymer particles and further to suppress blockage of a silo or the like by crimp of the polymer particles.SOLUTION: There is provided polymer particles of a soft polymer satisfying following requirements: a) a component eluted at 40°C or less is 23 wt.% or more in TREF (temperature raise elution fractionation); b) a volatile component of the polymer particles is 100 wt.ppm or less; and c) a repose angle of the polymer particles of 20 to 55°.SELECTED DRAWING: Figure 1 |
