| abstract |
The invention provides a flame retardant composition and a thermal insulation material made from used paper and comprising this flame retardant composition. The flame retardant composition comprises at least two substances selected from the group consisting of aluminium hydroxide, ammonium sulphate, sodium sulphate, monoammonium phosphate, diammonium phosphate, triammonium phosphate, ammonium polyphosphate, aluminium sulphate, trisodium phosphate, calcium hydroxide and magnesium hydroxide, and at least one biocide from the group of the silver salts. |