Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Henry Keith Chenault0
Date of Patent
January 11, 2011
0Patent Application Number
117329520
Date Filed
April 5, 2007
0Patent Primary Examiner
Patent abstract
A method for preparing multi-arm poly(ethylene glycol) (PEG) amines from multi-arm PEG polyols is described. The method comprises a two step process, wherein the multi-arm PEG polyol is first reacted with thionyl chloride to form a multi-arm PEG chloride, which is subsequently reacted with aqueous or anhydrous ammonia to yield the multi-arm PEG amine.
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