CATALYST MODIFIER AND ITS EMPLOYMENT IN OLEFIN POLYMERIZATION Russian patent published in 2004 - IPC

FIELD: polymerization catalysts.

SUBSTANCE: invention relates to methods of increasing olefin polymerization process effectiveness and, more particularly, to a method of controlling olefin polymerization catalysis kinetics. Invention provides catalytic composition including polymerization catalyst and a solid compound, which at temperature exceeding polymerization temperature undergoes phase transfer and deactivates catalyst, and catalytic composition including metallocene-type catalyst compound with a bulky ligand, activator, support, and solid acid compound. Methods for preparation of such compositions and olefin polymerization methods utilizing such compositions are also described.

EFFECT: increased stable productivity of catalytic composition with low tendency to pollution (formation of depositions) and increased duration of continuous polymerization process.

33 cl, 4 tbl, 24 ex