3909 Amino-resins, Phenolic Resins and Polyurethanes, in Primary Forms

3909 (01/1988-..) Amino-resins, Phenolic Resins and Polyurethanes, in Primary Forms 39091000 (01/1988-..) Urea Resins and Thiourea Resins, in Primary Forms 39092000 (01/1988-..) Melamine Resins, in Primary Forms 39093000 (01/1988-12/2016) Amino-resins, in Primary Forms (Excl. Urea Resins, Thiourea Resins and Melamine Resins) 39093100 (01/2017-..) Poly`methylene Phenyl Isocyanate` `crude Mdi, Polymeric Mdi`, in Primary Forms 39093900 (01/2017-..) Amino-resins, in Primary Forms (Excl. Urea, Thiourea and Melamine Resins and Mdi) 39094000 (01/1988-..) Phenolic Resins, in Primary Forms 39095000 (01/1988-12/1996) Polyurethanes, in Primary Forms 39095010 (01/1997-..) 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% of Polymer 39095090 (01/1997-..) Polyurethanes in Primary Forms (Excl. Polyurethane of 2,2'-`tert-butylimino`diethanol and 4,4'-methylenedicyclohexyl Diisocyanate, in the Form of a Solution in N, N-dimethylacetamide)