Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 3, 2009
Patent Application Number
11241535
Date Filed
September 30, 2005
Patent Primary Examiner
Patent abstract
A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
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