| 摘要 |
A material having good resistance to mechanical stresses and heat, and in particular having substantial resistance to the penetration of a directed flame such as the pointed flame of a blowpipe, comprises per 100 pbw of material, 30 to 70 pbw of a polymerizable substance such as a polyurethane, 10 to 60 pbw of divided sulphur, and various optional ingredients, viz. halogenated compounds, phosphorus-bearing compounds, phosphohalogenated compounds, trivalent antimony oxide, solid or liquid fillers and pigments. The material may be used for the production of strong walls, in particular by filling internal cavities of armoured doors, walls of strong rooms or safes. |
