OLEFIN POLYMERIZATION CATALYST, OLEFIN POLYMERIZATION METHOD, OLEFIN POLYMER COMPOSITIONS, AND THERMOFORMED ARTICLES

摘要

A catalyst having a high polymerization activity and capable of providing olefin polymers having a wide molecular weight distribution, which comprises (a) a metallocene compound (a-1) or a titanium catalyst component (a-2) comprising magnesium, titanium, and a halogen as indispensable components, (b) a group 8-10 transition metal compound represented by general formula (I'), and a cocatalyst, wherein M represents Pd, Ni, or Pt; X<1> and X<2> represent N or P; R<1> and R<2> represent H or a hydrocarbon radical; R<4> and R<5> represent a halogen or a hydrocarbon radical; and R<6> and R<7> represent H or a hydrocarbon radical. An olefin polymer composition which has excellent rigidity and impact resistance is prepared by using a catalyst containing the above transition metal compound (b), and comprises a noncrystalline olefin polymer having an intrinsic viscosity, a glass transition temperature, and a density in respective particular ranges and a conventional olefin polymer other than the above olefin polymer. Another olefin polymer composition which has excellent mechanical properties and heat resistance is prepared by using a catalyst containing the above transition metal compound (b), and comprises a crystalline olefin polymer having an intrinsic viscosity, a melting point, and a density in respective particular ranges and a conventional olefin polymer other than the above olefin polymer.