Diketonate complex-derived catalysts useful for preparing polyolefins
AssigneeFina Technology, Inc.
InventorsTim Coffy, Steven Gray
Life of this patent
Estimating the term…
Abstract
An olefin polymerization catalyst may be prepared using a process including contacting a metal compound of the formula M(OR1)2 with a diketone to form a catalyst precursor having the general formula: wherein M is a Group IIA metal; O is oxygen; n=1 or 2; R1, R2, R3, and R4 are the same or different; and are a hydrogen or a substituted or unsubstituted alkyl or aryl moiety having from about 1 to about 20 carbons atoms.
Claims40
A process for making a catalyst precursor, the process comprising contacting a metal compound of the formula M(OR1)2 with a diketone to form a catalyst precursor having the general formula:
- wherein M is a Group IIA metal;
- O is oxygen;
- n=1 or 2;
- R1, R2, R3, and R4 are the same or different;
- and are a hydrogen or a substituted or unsubstituted alkyl or aryl moiety having from about 1 to about 20 carbons atoms.
A process for olefin polymerization, the process comprising contacting one or more olefin monomers together in the presence of a catalyst under polymerization conditions, wherein the catalyst is produced by a process comprising a metal compound of the formula M(OR1)2 with a diketone to form a catalyst precursor having the general formula:
- wherein M is a Group IIA metal;
- O is oxygen;
- n=1 or 2;
- R1, R2, R3, and R4 are the same or different;
- and are a hydrogen or a substituted or unsubstituted alkyl or aryl moiety having from about 1 to about 20 carbons atoms.
A catalyst produced by a process comprising contacting a metal compound of the formula M(OR1)2 with a diketone to form a catalyst precursor having the general formula:
- wherein M is a Group IIA metal;
- O is oxygen;
- n=1 or 2;
- R1, R2, R3, and R4 are the same or different;
- and are a hydrogen or a substituted or unsubstituted alkyl or aryl moiety having from about 1 to about 20 carbons atoms.
A polymer produced by a process comprising contacting one or more olefin monomers together in the presence of a catalyst under polymerization conditions, wherein the catalyst is produced by a process comprising contacting a metal compound of the formula M(OR1)2 with a diketone to form a catalyst precursor having the general formula:
- wherein M is a Group IIA metal;
- O is oxygen;
- n=1 or 2;
- R1, R2, R3, and R4 are the same or different;
- and are a hydrogen or a substituted or unsubstituted alkyl or aryl moiety having from about 1 to about 20 carbons atoms.
Dependencies are inferred from the claim text.