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US 12,286,504 B2Granted
Catalyst components for the polymerization of olefins
AssigneeBasell Poliolefine Italia S.r.l.
InventorsFabrizio Piemontesi, Alessandro Mignogna, Dario Liguori, Giampiero Morini, Tiziano Dall'Occo, Gianni Vitale
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Abstract
A solid catalyst component for the polymerization of olefins made from or containing a magnesium halide, a titanium compound having at least a Ti-halogen bond, a first electron donor compound selected from 1,3 diethers (DE), and 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.
Claims14
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.
3 more elements
Dependencies are inferred from the claim text.