CATALYTIC COMPOSITION WITH HALOGENMALONATE INTERNAL DONOR OF ELECTRONS AND POLYMER FROM IT Russian patent published in 2018 - IPC C08F4/651 C08F4/654 C08F10/00 B01J21/10 B01J21/06 B01J31/04 C07C69/38

Abstract RU 2644212 C2

FIELD: chemistry.

SUBSTANCE: procatalyst compositions contain a magnesium part, a titanium part, 2-fluoromalonate. The catalyst compositions contain a procatalyst composition, a cocatalyst, an external electron donor. The propylene-based polymer obtained from the present catalyst composition has a melt flow rate greater than 50 g/10 min.

EFFECT: increase in the selectivity and activity of the catalyst, increase in the sensitivity to hydrogen during polymerization.

22 cl, 8 tbl, 15 ex

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RU 2 644 212 C2

Authors

Chen Linfen

Leung Tak V.

Tao Tao

Dates

2018-02-09—Published

2011-12-02—Filed