| 摘要 |
PURPOSE:To obtain the title foam excellent in thermal insulation, dimensional stability and compressive strength by using a specific polyol component, dichlorotrifluoroethane as foaming agent and isocyanate component. CONSTITUTION:The objective foam can be obtained by at least, using, (A) an isocyanate component, (B) a polyol component containing >=5wt.% of a polyether polyol having a hydroxyl value of 150-760mg/KOH/g together with a polymerization initiator of an aromatic ring-contg. aliphatic diamine of the formula [X is CH2CH2O, CH2CH(CH3)O or mixture thereof; (a), (b), (c) and (d) are each 1-10], and (C) dichlorotrifluoroethane or dichlorofluoroethane as foaming agent. |
