| 摘要 |
PURPOSE:To provide the title composition which is excellent in durability, chemical resistance, heat resistance, weathering resistance, etc., and can effectively be used as the material of rolls for iron and steel production, papermaking or an office machine or as the material of a belt, a solid tire, a sheet or the like, and to provide a roll coated therewith. CONSTITUTION:A polyurethane or polyurethane urea composition comprising a prepolymer obtained by reacting a hydroxide of a liquid hydroxyisoprene polymer having 2.0 or more hydroxyl groups on the average per molecule with a polyisocyanate compound at 0-150 deg.C for 0.5-50hr and at least one compound selected between a polyol compound having a molecular weight of 500 or below and a polyamine compound having a molecular weight of 500 or below; and a coated roll prepared by coating a metallic surface with the composition. |
