| http://www.w3.org/ns/prov#value | - one highly electronegative group geminate to each amino group; and (c) alkyl acid esters of halogen substituted diamino phenols and mixtures thereof.In yet another aspect, the invention is a composition of matter comprising (1) a relatively high equivalent weight polyoxyalkylene polyol produced from oxiranes, and (2) at least one chain extender selected from the group consisting of: (a)heterocycli
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