METHOD FOR CONTROLLING POLYMERIZATION OF OLEFINS WITH USE OF TWO-COMPONENT CATALYST Russian patent published in 2018 - IPC C08F10/00 C08F110/02 C08F4/659 

FIELD: chemistry.

SUBSTANCE: method includes bringing the two-component catalyst system in contact with an olefin monomer and optionally an olefin co-monomer in the reactor or system of the polymerization reactors in terms of polymerization with obtaining an olefin polymer. The olefin polymer contains a higher molecular weight component and a lower molecular weight component. The two-component catalyst system comprises the first metallocene catalyst component and the second metallocene catalyst component. The reaction temperature is 60-110°C and the interaction time is from 10 min to 2 h. Controlling the weight relationship of a higher molecular weight component to a lower molecular component is achieved through the regulation of the reaction temperature, where the weight ratio of a higher molecular weight component to a lower molecular component increases with the increase of the reaction temperature.

EFFECT: obtaining a specific grade of olefin polymer with specific polymer properties.

12 cl, 2 dwg, 2 tbl, 8 ex