Synonyms: POLY[4,4’-METHYLENEBIS(PHENYL ISOCYANATE)-ALT-1,4-BUTANEDIOL/ POLYTETRAHYDROFURAN];1,4-Butanediol,p,p-diphenylmethanediisocyanate,polytetramethyletherglycolpolymer;1,4-Butanediol,polymerwith.alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl)and1,1鈥?methylenebis(4-isocyanatobenzene);Diphenylmethane-4,4鈥?diisocyanate,1,4-butanediol,polytetramethyleneglycolpolymer;poly(4,4鈥?methylenebis(phenylisocyanate)-alt-1,4;Poly(tetramethyleneether)glycol,1,4butanediol,4,4鈥檇iphenylmethanediisocyanatepolyurethane;1,4-Butanediol, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,1-methylenebis4-isocyanatobenzene;1,4-BUTANEDIOL-METHYLENEBIS(4-PHENYLISOCYANATE)-POLY(TETRA.