CATALYTIC COMPOSITION AND METHODS FOR ITS PREPARING AND APPLYING IN THE POLYMERIZATION PROCESS Russian patent published in 2004 - IPC

FIELD: polymers, chemical technology.

SUBSTANCE: invention describes a catalytic composition, method for its preparing from polymerization catalyst and metal carboxylate salt, and application of this catalytic composition in polymerization of olefins also. Such polymerization catalytic system is applied, in particular, on a carrier. The polymerization catalyst comprises a catalytic system of metallocene type with bulky ligand and metal carboxylate salt that corresponds to the formula: MQ_x(OOCR)_y wherein M means metal atom of the III group of Mendeleyev's periodic system; Q means hydroxyl; x means a whole number 1 or 2; y means a whole number 1 or 2; sum x + y is equal to the metal valence, and the content of metal carboxylate salt as measured for the total mass of polymerization catalyst is in the range 0.5-100 wt.-%. Invention provides carrying out the continuous polymerization process with the more stable output of catalytic system, reduced tendency for pollution, formation of deposits and prolonged process duration.

EFFECT: improved preparing and applying methods, valuable properties of composition.

37 cl, 7 tbl, 21 ex