Urea,polymer with .alpha.-(2-aminomethylethyl)-.omega.-(2-aminomethylethoxy)poly[oxy(methyl-1,2-ethanediyl)]; Urea, polymer with .alpha.-(2-aminomethylethyl)-.omega.-(2-aminomethylethoxy)poly[oxy(methyl-1,2-ethanediyl)]; urea, polymer with alpha-(2-aminomethylethyl)- omega-(2-aminomethylethoxy)poly[oxy(methyl-1,2-ethanediyl)]