Polymerization catalyst, production and use
First Claim
1. A transition metal containing catalyst component comprising the solid reaction product obtained by treating an inert solid support material in an inert solvent with (A) an organometallic compound of a Group IIa, IIb or IIIa metal wherein all the metal valencies are satisfied with a hydrocarbon group, optionally (B) an oxygen containing compound selected from ketones, aldehydes, alcohols, siloxanes or mixtures thereof, (C) at least one transition metal compound of a Group IVb, Vb, VIb or VIII metal, and (D) a Group IIIa metal hydrocarbyl dihalide with the proviso that if the oxygen containing alcohol, aldehyde, ketone or siloxane is employed the inert solid support material can be treated with (i) the (A) organometallic compound and the (B) oxygen containing compound simultaneously, (ii) the reaction product of the (A) organometallic compound and (B) oxygen containing compound or (iii) the (B) oxygen containing compound followed by treating with the (A) organometallic compound.
1 Assignment
0 Petitions
Accused Products
Abstract
Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, optionally an oxygen containing compound, titanium tetrachloride and a Group IIIa metal hydrocarbyl dihalide.
-
Citations
33 Claims
- 1. A transition metal containing catalyst component comprising the solid reaction product obtained by treating an inert solid support material in an inert solvent with (A) an organometallic compound of a Group IIa, IIb or IIIa metal wherein all the metal valencies are satisfied with a hydrocarbon group, optionally (B) an oxygen containing compound selected from ketones, aldehydes, alcohols, siloxanes or mixtures thereof, (C) at least one transition metal compound of a Group IVb, Vb, VIb or VIII metal, and (D) a Group IIIa metal hydrocarbyl dihalide with the proviso that if the oxygen containing alcohol, aldehyde, ketone or siloxane is employed the inert solid support material can be treated with (i) the (A) organometallic compound and the (B) oxygen containing compound simultaneously, (ii) the reaction product of the (A) organometallic compound and (B) oxygen containing compound or (iii) the (B) oxygen containing compound followed by treating with the (A) organometallic compound.
- 16. A catalyst system for the polymerization or copolymerization of ethylene and alpha-olefins having from 3 to 12 carbon atoms comprising (a) an organo aluminum compound of the formula AlR"n X"3-n wherein R" is hydrogen or a hydrocarbon group having from 1 to 20 carbon atoms, X is halogen and n is a number from 1 to 3, and (b) a transition metal containing catalyst component comprising the solid reaction product obtained by treating an inert solid support material in an inert solvent with (A) an organometallic compound of a Group IIa, IIb or IIIa metal wherein all the metal valencies are satisfied with a hydrocarbyl group, optionally (B) an oxygen containing compound selected from ketones, aldehydes, alcohols, siloxanes or mixtures thereof, (C) at least one transition metal compound of a Group IVb, Vb, VIb or VIII metal, and (D) a Group IIIa metal hydrocarbyl dihalide and with the proviso that if the oxygen containing alcohol, aldehyde, ketone or siloxane is employed the inert solid support material can be treated with (i) the (A) organometallic compound and the (B) oxygen containing compound simultaneously, (ii) the reaction product of the (A) organometallic compound and (B) oxygen containing compound or (iii) the (B) oxygen containing compound followed by treating with the (A) organometallic compound.
Specification