Patent ID: 7025794

Claim:
A polymer comprising one or more polymerized monomers of formula: wherein A is an unsaturated alkylene moiety; B is the residue of a substituted or unsubstituted polyol wherein one hydroxyl moiety is esterified with one carboxyl moiety of the phthalic acid moiety; D is the residue of a substituted or unsubstituted polyol wherein one hydroxyl moiety is esterified with another carboxyl moiety of the phthalic acid moiety, and another hydroxyl moiety is esterified with one carboxyl moiety of the unsaturated alkylene moiety; E is the residue of a substituted or unsubstituted polyol wherein one hydroxyl moiety is esterified with another carboxyl moiety of the unsaturated alkylene moiety; and M is a cation.