Synonyms: 2,2'-oxybis-, polymer with 2,4-diisocyanato-1-methylbenzene and alpha-ethanol;Ethanol, 2,2'-oxybis-, polymer with 2,4-diisocyanato-1-methylbenzene and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl);Ethanol, 2,2'-oxybis-, polymer with 2,4-diisocyanato-1-methylbenzene and α-hydro-ω-hydroxypoly( oxy-1,4-butanediyl)