In situ olefin polymerization catalyst system
AssigneePromerus, LLC
InventorsLarry F. Rhodes, Luis Francisco Martin, Andrew Bell
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Abstract
Embodiments in accordance with the present invention encompass methods of forming in situ olefin polymerization catalyst systems, catalysts encompassed by such systems and polymers made using such systems. For such in situ olefin polymerization catalyst systems, a hydrocarbyl magnesium halide is generally contacted with a halohydrocarbyl compound to form a halohydrocarbyl Grignard and such Grignard is generally contacted with a Group 10 metal compound to form an olefin polymerization catalyst which is contacted with one or more olefin monomers to form a polymer therefrom.
Claims20
A method of forming, in situ, an olefin polymerization catalyst system, comprising:
- first contacting a hydrocarbyl magnesium halide, represented by RHMgX where RH is a non-halogenated hydrocarbyl and X is a halogen, with a halohydrocarbyl compound, represented by RFX, where RF is a halogenated hydrocarbyl and X is a halogen, to form a halohydrocarbyl Grignard, represented by RFMgX;
- and
- second contacting the halohydrocarbyl Grignard with a Group 10 metal compound to form, in situ, the olefin polymerization catalyst system, the olefin polymerization catalyst system having two or more distinct catalytically active species.
A cycloolefin polymerization catalyst, comprising:
- a Group 10 metal complex comprising at least two structures represented by Formulae II, III, IV or V
- where M is a Group 10 metal or metal ion independently selected from one or more from the group consisting of nickel, palladium and platinum;
- X is a halogen;
- R5, R6, R7, R8, R9, R10 and R11 are each independently selected from the group consisting of halophenyls, haloalkylsubstituted halophenyls, halomethylphenyls, haloalkyl ligands;
- L is a solvent ligand or a ligand selected from the group consisting of halo ligands, acetylacetonate, ethylhexanoate, naphthenate, acetate, trifluoroacetate hexafluoroacetylacetonate, cyclohexanebutyrate, octanoate, propionate;
- and Z is a countercation selected from a Mg cation, a Mg cation complex, and a complex comprising a Mg cation coordinated with ligand L where L is a non-solvent ligand capable of bridging, and where Mg is in the 2+ oxidation state, r and s are independently 1 or 2, and where the p and q have a value of 1 or 2 such that the Group 10 metal complex is neutral.
A method of making a polymer, comprising contacting, in situ, a Group 10 metal catalyst having two or more distinct catalytically active species with an olefin monomer to form the polymer, the in situ Group 10 metal catalyst made by first contacting a hydrocarbyl magnesium halide, represented by RHMgX where RH is a non-halogenated hydrocarbyl and X is a halogen, with a halohydrocarbyl compound, represented by RFX, where RF is a halogenated hydrocarbyl and X is a halogen, to form a halohydrocarbyl Grignard, represented by RFMgX, and second contacting the halohydrocarbyl Grignard with a Group 10 metal compound to form the in situ Group 10 metal catalyst, the Group 10 metal catalyst having two or more distinct catalytically active species.
Dependencies are inferred from the claim text.