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US 2001/0018502 A1Published application
Olefin polymerization catalysts containing amine derivatives
AssigneeEquistar Chemicals, LP
InventorsSandor Nagy, Bradley P. Etherton, Ramesh Krishnamurti, John A. Tyrell
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Abstract
A single-site olefin polymerization catalyst is described. The catalyst comprises an activator and an organometallic compound that includes an amine derivative ligand. The catalyst is highly productive, incorporates comonomers well, and gives polymers with narrow molecular weight distributions.
Claims26
A catalyst which comprises:
- (a) an organometallic compound of the formula:
- 6
- wherein M is a Group 3-10 transition metal;
- A is O, S, N—R″, or P—R″;
- L is a polymerization-stable anionic ligand;
- X is hydride, halide, C1—C20 alkoxy, siloxy, hydrocarbyl, or dialkylamido;
- R, R′, and R″, which can be same or different, are selected from hydrogen and C1—C20 hydrocarbyl;
- and m+ n equals the valency of M minus 1;
- and
- (b) an activator.
7 more elements
The catalyst of claim I wherein the activator is a trialkyl or triaryl boron compound or an ionic borate.
A catalyst which comprises:
- (a) an organometallic compound of the formula:
- 7
- wherein M is a Group 4-6 transition metal;
- L is a polymerization-stable anionic ligand;
- X is hydride, halide, methyl, phenyl, benzyl, neopentyl, or a C1—C20 alkoxy, siloxy, or dialkylamido;
- R, R′, and R″, which can be same or different, are selected from hydrogen and C1—C20 hydrocarbyl and
- m+ n equals the valency of M minus 1;
- and
- (b) an activator.
6 more elements
A catalyst which comprises:
- (a) an organometallic compound of the formula:
- 9
- wherein M is a Group 3-10 transition metal;
- A is O, S, N—R″, or P—R″;
- L is a polymerization-stable anionic ligand;
- X is hydride, halide, C1—C20 alkoxy, siloxy, hydrocarbyl, or dialkylamido;
- R, R′, and R″, which can be same or different, are selected from hydrogen and C1—C20 hydrocarbyl, and
- m+ n equals the valency of M minus 1;
- and
- (b) an activator.
7 more elements
Dependencies are inferred from the claim text.