Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 27, 2009
Patent Application Number
11890162
Date Filed
August 3, 2007
Patent Primary Examiner
Patent abstract
A water soluble polymer is described, the water soluble polymer comprising multiple hydrolytically degradable carbonate linkages in a backbone and, for each carbonate linkage in the backbone, an oligomer linked thereto by the carbonate linkage, wherein the oligomer is branched and, prior to being linked by the carbonate linkage, has the formula:R3[O—(—CHR1CH2—O—)n—]mHwhere R3 is a core branching moiety, R1 is H, (n) can range from 2 to 2000, and m is at least 3.
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