Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 11, 2011
Patent Application Number
12227521
Date Filed
May 17, 2007
Patent Primary Examiner
Patent abstract
A method for producing a polybutadiene, which comprises subjecting 1,3-butadiene to cis-1,4 polymerization, and subsequently subjecting a resultant in the resulting polymerization system to syndiotactic-1,2 polymerization, the method being characterized in that there is added, after the polymerization, a halogen acid or halogen acid salt.
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