Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer with hydrazine, α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)], 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and α,α'-(methylphosphinylidene)bis[ω-hydroxypoly(oxy-1,2-ethanediyl)], compd. with N,N-diethylethanamine