	US 12,286,504 B2
	Catalyst components for the polymerization of olefins
Fabrizio Piemontesi, Ferrara (IT); Alessandro Mignogna, Ferrara (IT); Dario Liguori, Ferrara (IT); Giampiero Morini, Ferrara (IT); Tiziano Dall'Occo, Ferrara (IT); and Gianni Vitale, Ferrara (IT)
Assigned to Basell Poliolefine Italia S.r.l., Milan (IT)
Appl. No. 17/642,460
Filed by BASELL POLIOLEFINE ITALIA S.R.L., Milan (IT)
PCT Filed Aug. 27, 2020, PCT No. PCT/EP2020/073984 § 371(c)(1), (2) Date Mar. 11, 2022, PCT Pub. No. WO2021/052733, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 19197698 (EP), filed on Sep. 17, 2019.
Prior Publication US 2022/0298272 A1, Sep. 22, 2022
Int. Cl. C08F 4/76 (2006.01); C08F 4/654 (2006.01); C08F 10/06 (2006.01)

CPC C08F 4/6543 (2013.01) [C08F 4/76 (2013.01); C08F 10/06 (2013.01); C08F 2500/12 (2013.01); C08F 2500/15 (2013.01); C08F 2500/17 (2013.01); C08F 2500/27 (2021.01); C08F 2500/30 (2021.01); C08F 2500/31 (2021.01); C08F 2500/35 (2021.01)]

14 Claims

1. A solid catalyst component for the polymerization of olefins comprising:

(i) a magnesium halide,

(ii) a titanium compound having at least a Ti-halogen bond,

(iii) a first electron donor compound selected from 1,3 diethers (DE), and

(iv) a second electron donor compound selected from dicarbamates (DC), wherein the first and second electron donor compounds are present in a molar ratio DE:DC ranging from 4.5:1 to 20:1; and

wherein the first and second electron donor compounds are supported on the magnesium halide in active form.