3909500000 80
- Polyurethanes
3909501000 80
- - Polyurethane of 2,2′-(tert-butylimino)diethanol and 4,4′-methylenedicyclohexyl diisocyanate, in the form of a solution in N,N-dimethylacetamide, containing by weight 50 % or more of polymer
3909509000 80
- - Other