METALLOCENES WITH FLUORENYL TYPE LIGANDS, METHOD OF PREPARING THEREOF, INTERMEDIATE COMPOUND FOR PREPARATION THEREOF, OLEFIN POLYMERIZATION CATALYST COMPRISING THESE METALLOGENES, AND METHOD OF POLYMERIZATION OF OLEFINS

摘要

chemical industry. SUBSTANCE: described are new metallocenes with fluorenyl type ligands of formula I: wherein R1 is hydrogen or lower alkyl; M is Ti, Zr or Hf; R2 is halogen; R3 is , wherein R4 is lower alkyl or C3-C20 cycloalkyl. Said metallocenes are useful as components of olefin polymerization catalysts, especially for preparing high molecular atactic polypropylene. Also described are intermediate compounds for preparing thereof, olefin polymerization catalyst comprising these meatllocenes and method of polymerzining olefins. EFFECT: improved properties of the meallocenes and more efficient preparation method thereof. 12 cl