Patent ID: 7893136

Claim:
A water-soluble co-polyhydroxyaminoether having side chains of polyalkylene oxides; wherein the water-soluble polymer is represented by the formula: wherein: R is independently selected from hydrogen and C 1 -C 20 alkyl; R 1 is individually selected from an aromatic moiety and a substituted aromatic moiety; Y is an organic moiety that does not contain an epoxy group; Z is an organic moiety optionally containing an epoxy group; n is 5-400; x is about 0.01 to about 0.99; A is individually selected from an amino group represented by one of the following formulas: wherein: R 2 is independently selected from hydrocarbyl and substituted hydrocarbyl; R 3 is independently selected from C 2 -C 10 hydrocarbylene or substituted hydrocarbylene; R 4 is independently selected from C 2 -C 20 hydrocarbylene and substituted hydrocarbylene; and the substituent(s) is independently selected from the group consisting of hydroxyl, cyano, halo, aryloxy, alkylamido, arylamido, alkycarbonyl, or arylcarbonyl; and B is represented by the formula: wherein: R 5 is methyl; R 6 is independently selected from the group consisting of hydrogen and methyl; the molar ratio of propylene oxide to ethylene oxide is approximately 3/19 or approximately 10/32; and q is a number yielding an approximate molecular weight of 1000 or 2000.