Hexanedioic acid, polymer with 1,4-cyclohexanedimethanol, 2,2-dimethyl-1,3-propanediol, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid, 1,1-methylenebis4-isocyanatocyclohexane and 2-methyl-1,5-pentanediamine, compd. with N,N-diethylethanamine