| 摘要 |
PURPOSE:To provide a foaming resin composition composed of an aqueous solution or slurry of a carbohydrate, a specific polyether polyol, a reaction catalyst and an isocyanate compound and capable of giving a foamed product having excellent flame-retardance, high strength and low water-absorption. CONSTITUTION:The objective foaming resin composition is produced by mixing (A) preferably 50-150pts.(wt.) of an aqueous solution and/or slurry of a carbohydrate (e.g. fructose) (preferably having a water-content of 5-20wt%), (B) preferably 10-100pts. of a polyether polyol produced by reacting an alkylene oxide to a sugar having cyclic structure (preferably sucrose), (C) preferably 0.5-4.0pts. of a reaction catalyst (e.g. dibutyltin laurate), (D) preferably 50-150pts. of an isocyanate (e.g. phenyl isocyanate) and, if necessary, (E) preferably 0.5-4.0pts. of a foam stabilizer (e.g. silicone polymer) and/or preferably 5-50pts. of a flame-retardant [e.g. tris(2-chloroethyl)phosphate]. |
