Synonyms: Polyoxy(methyl-1,2-ethanediyl), .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris.omega.-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene and .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl);.alpha.-Hydro-.omega.-hydroxypoly[oxy (methyl-1,2-ethanediyl)], polymer with 1,3-diisocyantomethylbenzene and 1,2,3-propanetriol, polymer with methyloxirane;Poly[oxy(methyl-1,2-ethanediyl)], α,α',α''- 1,2,3-propanetriyltris[ω-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene and α-hydro-ω-hydroxypoly[ oxy(methyl-1,2-ethanediyl)]