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US 7,923,401 B2Granted
Single-site catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins
AssigneeAlbermarle Corporation
InventorLubin Luo
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Abstract
Single-site catalyst activator compositions are provided, said activator compositions comprising anion/cation ion pair wherein; (a) the anion comprises a metal atom bonded via hetero atoms to a chelating organic ligand, and (b) the cation comprises a Bronsted acid.
Claims15
A catalyst composition comprising a metallocene or non-metallocene single-site catalyst precursor;
- and an activator composition comprising an anion/cation ion pair, wherein
- (a) the anion comprises (i) a metal atom and (ii) an organic ligand having at least two hetero atoms and being chelated to the metal atom through covalent bonding of at least the two hetero atoms with the metal atom, and
- (b) the cation comprises a Bronsted acid.
A catalyst composition comprising a metallocene or non-metallocene single-site catalyst precursor;
- and an activator composition comprising a metal atom, an organic ligand, and a Bronsted acid, wherein:
- (a) the organic ligand comprises at least 2 hetero atoms and is chelated to the metal atom through covalent bonding of at least two of the hetero atoms with the metal atom;
- and
- (b) the Bronsted acid comprises [HAx]+, wherein H is a proton, A comprises a neutral Lewis base, and x is 0, 1 or 2, and when x is 2, the A's are the same or different.
1 more element
Dependencies are inferred from the claim text.