Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2004-12-17
2008-12-23
Lu, Caixia (Department: 1796)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S103000, C502S104000, C502S169000, C526S124200
Reexamination Certificate
active
07468339
ABSTRACT:
An olefin polymerization catalyst may be prepared using a process including contacting a metal compound of the formula M(OR1)2with 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 R4are 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.
REFERENCES:
patent: 4107413 (1978-08-01), Giannini et al.
patent: 4114319 (1978-09-01), Governale
patent: 4220554 (1980-09-01), Scata et al.
patent: 4294721 (1981-10-01), Cecchin et al.
patent: 4439540 (1984-03-01), Cecchin et al.
patent: 4460701 (1984-07-01), Terano et al.
patent: 4562173 (1985-12-01), Terano et al.
patent: 5066738 (1991-11-01), Ewen
patent: 6693058 (2004-02-01), Gray et al.
patent: 6790804 (2004-09-01), Gray et al.
patent: 2005/0255990 (2005-11-01), Luinstra
Coffy Tim J.
Gray Steven D.
Fina Technology, Inc.
Krueger Tenley R.
Lu Caixia
LandOfFree
Diketonate complex-derived catalysts useful for preparing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diketonate complex-derived catalysts useful for preparing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diketonate complex-derived catalysts useful for preparing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4020807