Patent ID: 7157546
Filing Date: 2007-01-02
Classification: A61K,A61P,C07C,C08G,C08L

Abstract:
1. A water-soluble polymer having the structure: wherein: POLY is a water-soluble polymer segment; X′ is a linker moiety; z′ is an integer from 3 to 12; R R and further wherein the following apply: when POLY is linear: (a) the total number of carbonyls present in said polymer is 0 or 2 or greater except when X′ comprises one or more contiguous (—CH (b) and further wherein X′ is oxygen or comprises at least one (—CH when POLY is branched: (c) either (i) at least one of R (d) and further wherein said POLY has 2 polymer arms, then neither polymer arm comprises oxygen as the only heteroatom in the instance where POLY comprises “C—H” as a branch point.