1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 1,4-butanediol, carbonic dichloride, 1,6-hexanediol, 4,4′-(methanetetrayldinitrilo)bis[3,5-bis(1-methylethyl)phenol], 1,1′-methylenebis[4-isocyanatobenzene] and 2-oxepanone 1,4-Butanediol, polymer with carbonic dichloride, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 4,4′-(methanetetrayldinitrilo)bis[3,5-bis(1-methylethyl)phenol], 1,1′-methylenebis[4-isocyanatobenzene] and 2-oxepanone 1,6-Hexanediol, polymer with 1,4-butanediol, carbonic dichloride, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 4,4′-(methanetetrayldinitrilo)bis[3,5-bis(1-methylethyl)phenol], 1,1′-methylenebis[4-isocyanatobenzene] and 2-oxepanone 2-Oxepanone, polymer with 1,4-butanediol, carbonic dichloride, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 4,4′-(methanetetrayldinitrilo)bis[3,5-bis(1-methylethyl)phenol] and 1,1′-methylenebis[4-isocyanatobenzene] Benzene, 1,1′-methylenebis[4-isocyanato-, polymer with 1,4-butanediol, carbonic dichloride, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 4,4′-(methanetetrayldinitrilo)bis[3,5-bis(1-methylethyl)phenol] and 2-oxepanone Carbonic dichloride, polymer with 1,4-butanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 4,4′-(methanetetrayldinitrilo)bis[3,5-bis(1-methylethyl)phenol], 1,1′-methylenebis[4-isocyanatobenzene] and 2-oxepanone Phenol, 4,4′-(methanetetrayldinitrilo)bis[3,5-bis(1-methylethyl)-, polymer with 1,4-butanediol, carbonic dichloride, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 1,1′-methylenebis[4-isocyanatobenzene] and 2-oxepanone