| http://www.w3.org/ns/prov#value | - B is a bivalent organic radical, said radical being inert to isocyanate groups; O-RO is a bivalent radical resulting from revomal of the terminal hydrogen atoms from a non-polymeric glycol; n is an integer greater than zero; m is an integer including zero; each of the structural units being connected to the next by a radical selected from the group consisting of wherein OGO and O-RO have the signi
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