A heterophasic propylene polymerization material comprising a propylene homopolymer component or a specific propylene copolymer component, and a specific ethylene-α-olefin copolymer component, in which (i) the amount of the xylene-soluble component is 40% by weight or more, (ii) the limiting viscosity [η]CXIS of the xylene-insoluble component is 1.50 dL/g or more, (iii) the ratio of the limiting viscosity [η]CXS of the xylene-soluble component to the limiting viscosity [η]CXIS of the xylene-insoluble component is 1.5 or less, and (iv) the content of monomer units derived from ethylene and α-olefins having 4 to 12 carbon atoms in the xylene-insoluble component is 6% by weight or more.
一种异相
丙烯聚合材料,包括
丙烯均聚物组分或特定
丙烯共聚物组分,以及特定
乙烯-α-烯烃共聚物组分,其中(i)二
甲苯可溶组分的量为40%(重量)或以上,(ii)二
甲苯不溶组分的极限粘度[η]CXIS为1.(iii) 二
甲苯可溶组分的极限粘度[η]CXS 与二
甲苯不溶组分的极限粘度[η]CXIS 之比为 1.5 或以下,以及 (iv) 二
甲苯不溶组分中来自
乙烯和具有 4 至 12 个碳原子的 α-烯烃的单体单元的含量为 6%(重量比)或以上。