| 摘要 |
PURPOSE:To improve the consistency in quality without detriment to compressive strength and low-temp. dimensional stability by mixing, stirring, and foaming a specific polyol component with an isocyanate component comprising an org. polyisocyanate. CONSTITUTION:A polyether polyol, a foam stabilizer, a catalyst, a blowing agent comprising 1,1-dichloro-1-fluoroethane or 2,2-dichloro-1,1,1-trifluoroethane, a ZnO whisker, and zeolite are compounded to give a polyol component, which is mixed, stirred, and foamed with an isocyanate component comprising an org. polyisocyanate. |
