Synonyms: Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer withhydrazine, .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane;propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-,polymer with hydrazine, alpha-hydro- omega-hydroxypoly(oxy-1,4-butanediyl) and5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane;Propanoic acid,3-hydroxy-2-(hydroxymethyl)-2-methyl-,polymer withhydrazine,.alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl)and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane;3-Hydroxy-2-(hydroxymethyl)-2-methyl propanoic acid polymer with hydrazine, α-hydroxy-ω-hydroxypoly(oxy-1,4-butanediyl) and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane