| abstract |
(57) [Summary] [PROBLEMS] To form a highly heat-insulating carbonized layer which is expanded and foamed by heating and / or flame to prevent combustible materials and to prevent the generation of gas such as smoke, flame, and gas generated by combustion. The present invention provides a foamed fire-retardant composition which has an effect of preventing outflow to water and whose effect is not reduced by water or moisture and has high water resistance and / or high moisture resistance. (A) a thermoplastic resin, (B) a rubber-based material, This is achieved by a foamable fire-retardant composition comprising (C) a phosphorus compound and (D) a polyfunctional alcohol. |