Cyclohexanemethanamine, 5-amino-1,3,3-trimethyl-, polymer with 2,4-diisocyanato-1-methylbenzene, .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl), 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 1,1-methylenebis4-isocyanatobenz