2-Propenoic acid, 2-methyl-, 2-(dimethylamino)ethyl ester, polymer with butyl 2-propenoate, 2-ethylhexyl 2-propenoate and N-(hydroxymethyl)-2-propenamide, compd. with hydrazine polymer with α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl), α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)], 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 2,2,4-trimethyl-1,3-pentanediol