US Patent 7820580 Nickel-based catalysts for preparing high cis 1,4-polydienes
Patent 7820580 was granted and assigned to Bridgestone on October, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A nickel-carbene polymerization catalyst system for preparing high cis polydienes is provided. The catalyst system comprises (a) a nickel N-heterocyclic carbene complex, (b) an organoaluminum compound, (c) a fluorine-containing compound, and (d) optionally, an alcohol. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of a polymerization catalyst comprising (a) a nickel N-heterocyclic carbene complex, (b) an organoaluminum compound, (c) a fluorine-containing compound, and (d) optionally, an alcohol.
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Patent Inventor Names
Jason T. Poulton0
Michael W. Hayes0
Zengquan Qin0
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US Patent 07820580 Nickel-based catalysts for preparing high cis 1,4-polydienes US Patent 7820580 Nickel-based catalysts for preparing high cis 1,4-polydienes
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Patent Number
078205800
Patent Number
78205800
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
078205800
Date of Patent
October 26, 2010
0Patent Application Number
122704240
Date Filed
November 13, 2008
0Official Website
Patent Primary Examiner
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US Patent 07820580 Nickel-based catalysts for preparing high cis 1,4-polydienes
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07820580
Date of patent
October 26, 2010
Patent application number
12270424
Date Filed
November 13, 2008
Patent primary examiner
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