| 摘要 |
PURPOSE:To provide a method for producing the polyurethane foam improved in elongation physical properties, skin-forming ability, surface smoothness, etc., without using a chlorofluorocarbon as a foaming agent. CONSTITUTION:The method for producing the polyurethane foam comprising a polyisocyanate compound, an organic active hydrogen compound, a foaming agent, a catalyst, and a foam stabilizer comprises using a polymer polyol having an average functional group number of 2-4 and a hydroxyl group value of 14-80 and a specific low mol.wt. active hydrogen compound as the active hydrogen compound and further using a diphenyl methane diisocyanate compound as the polyisocyanate compound. |
