| 摘要 |
PURPOSE:To obtain the subject foam which can give a lightweight integrated three-layer interior decorating material when combined with a thin-wall modified PPO resin as a core material and a flexible polyvinyl chloride as a skin by reacting a polyisocyanate with a polyol, water, etc., in the presence of a specified compound. CONSTITUTION:The objective semirigid polyurethane foam is obtained by reacting a polyisocyanate with a polyol, water and other assistants in the presence of 0.5-2.0 pts.wt., per 100 pts.wt. polyol, at least one compound selected from among those of formula I (wherein R1 is 1-3C alkyl or alkenyl; and R2 is H, 1-3C alkyl or alkenyl) and those of formula II (wherein X is OH, COOH or NH2; R3 is 1-6C alkylene or oxyalkylene; (m) is 0 or 1-3; and (n) is 1-3). This foam has improved adhesion to a modified PPO resin as a core material and can give a lightweight integrated three-layer interior decorating material when combined with a thin-wall modified PPO resin material as a core and a flexible polyvinyl chloride as a skinning material. |
