| http://www.w3.org/ns/prov#value | - Nakagawa et al., U.S. Pat. No. 3,960,743, disclose polymeric activators having the general structure ##STR8## in which R is purported to be C1-16 carbon atoms, a halo-- or hydroxyl-substituted C1-16 alkyl or a substituted aryl group, B is hydrogen or a C1-3 alkyl group, M is hydrogen, C1-4 alkyl or alkali metal, wherein n is an integer of at least one when M is an alkyl group or n is an integer of
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