HOMOGENOUS CATALYTIC SYSTEM FOR SYNTHESIS OF COPOLYMERS OF ETHYLENE WITH PROPYLENE AND HIGHER alpha-OLEFINS AND ALSO PROPYLENE WITH HIGHER alpha-OLEFINS, METHOD OF PRODUCING COPOLYMERS OF ETHYLENE WITH PROPYLENE AND HIGHER alpha-OLEFINS AND ALSO PROPYLENE WITH HIGHER alpha-OLEFINS

摘要

FIELD: polymer production. ^ SUBSTANCE: invention provides homogenous catalytic system for synthesis of copolymers and terpolymers of olefinic monomers, which system contains dialkyl bridge-type bis(indenyl)metallocene complexes with group IVB metals and trialkylaluminum at Al-to-metal ratio between 50 and 500. Catalytic system enables carrying out polymerization process at rates significantly exceeding ethylene or propylene homopolymerization rate. ^ EFFECT: significantly accelerated copolymerization process and achieved fractional and compositional homogeneity of ethylene/alpha-olefin and propylene/alpha-olefin copolymers. ^ 1 tbl, 16 ex