| http://www.w3.org/ns/prov#value | - More preferably, the sulfopoly(ester-urethane) component has the following structural formula: ##STR16## wherein R can be a C6 -C12 aryltriyl or C1 -C20 aliphatic triyl group(trivalent aryl or aliphatic group) in which M is a cation, preferably M is Na, but M can be H, an alkali metal such as K, Li, an alkaline earth metal cation (e.g., Mg, Ca, or Ba), or a primary, secondary, tertiary, or quatern
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