Flame retardant composition
AssigneeBudenheim Iberica, S.L. Sociedad En Comandita
InventorsVicente Mans Fibla, David Garcia Martinez
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Abstract
The invention relates to a flame retardant composition, particularly designed for fire fighting with aerial means. The retardant composition comprises a liquid ammonium polyphosphate of chain length with a value of n between 2 and 3, n being the number of condensation groups, and an ammonium polyphosphate in powder form in suspension, with a chain length with a value of n between 100 and 1500. In addition to the above, the flame retardant composition comprises corrosion inhibitors, in particular zinc orthophosphate dihydrate, and at least one surfactant agent as wetting agent or dispensing agent, an organic or inorganic thickening agent and at least one coloring agent.
Claims19
A flame retardant composition for aerial fire fighting, comprising a liquid ammonium polyphosphate and ammonium polyphosphate in powder form in suspension;
- wherein:
- the liquid ammonium polyphosphate has a chain length with a value of n, where n is 1 to 5, n being the number of condensation groups;
- the ammonium polyphosphate in powder form has a chain length with a value of n, where n is 900 to 1500, n being the number of condensation groups;
- the composition comprises at least one metal salt of the orthophosphoric acid as a corrosion inhibitor for alloys of aluminium, steel, bronze and magnesium, wherein the metal salt comprises a zinc orthophosphate salt;
- wherein the liquid ammonium polyphosphate content is 70% to 95% by weight of the total weight of the flame retardant composition;
- the ammonium polyphosphate in powder form is 5% to 13% by weight of the total weight of the flame retardant composition and the zinc orthophosphate salt is 0.01% to 5% by weight of the total weight of the flame retardant composition.
Dependencies are inferred from the claim text.