US Patent 7868132 Method for preparing multi-arm poly (ethylene glycol) amines
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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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Patent Inventor Names
Henry Keith Chenault0
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US Patent 07868132 Method for preparing multi-arm poly (ethylene glycol) amines US Patent 7868132 Method for preparing multi-arm poly (ethylene glycol) amines
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Patent Number
078681320
Patent Number
78681320
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Patent Jurisdiction
Patent Number
078681320
Date of Patent
January 11, 2011
0Patent Application Number
117329520
Date Filed
April 5, 2007
0Official Website
Patent Primary Examiner
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US Patent 07868132 Method for preparing multi-arm poly (ethylene glycol) amines
Infobox
Is a
Patent jurisdiction
Patent number
07868132
Date of patent
January 11, 2011
Patent application number
11732952
Date Filed
April 5, 2007
Patent primary examiner
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