| 摘要 |
<p>Fire and smoke retarding water based composition and a method for one-step impregnation of water absorbable and normally combustible materials, such as wood or timber, paper or textiles, said composition comprising ammoniumphosphates, water soluble metal salts and optionally other additives, such as fungicides. The composition comprises in combination: 0.5-40 weight % monoammoniumphosphate and/or diammoniumphosphate, 5-30 weight % water soluble and dissociatable ammonium compound, 10-60 % water soluble metal salt with ability to form water insoluble salts with phosphate ions and/or ammoniumphosphate ions, 0-30 weight % phosphoric acid (85 %), 1-20 weight % acetic acid, and optionally maximum 5 weight % additives in a total concentration of from 1 to 55 weight % with respect to the total weight of the water solution.</p> |
