US 8,080,681 B2Granted

Nano-linked metallocene catalyst compositions and their polymer products

AssigneeChevron Phillips Chemical Company LP

InventorsRex E. Murray, Kumudini C. Jayaratne, Qing Yang, Joel L. Martin

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Abstract

The present invention provides polymerization catalyst compositions employing novel dinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.

Claims16

Dependent claims

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Facts

Application: 11/966,081Filed 28 Dec 2007
Published: US 2009/0171041 A12 Jul 2009
Granted: 20 Dec 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

C08F 10/00
Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double
C08F 4/65912
Component covered by group C08F4/64 containing a transition metal-carbon bond: in combination with an organoaluminium compound
C08F 210/16
Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond: copolymers of ethene with alpha-alkenes, e.g. EP…
C08F 2410/03
Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst: multinuclear procatalyst, i.e. containing…

Family

US 2009/0171041 A1Pre-grant publication · published 2 Jul 2009
US 8,080,681 B2This patent

From the US filing history. Foreign family members aren’t listed.

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