Flame retardants for natural and synthetic materials
AssigneeWhite Chemical Corporation
InventorVladimir Mischutin
Life of this patent
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Abstract
A process for rendering natural and synthetic materials and blends of the same flame retardant which entails treating the same with an aqueous dispersion of the flame retardant agent reduced to a finely divided state suspended in a latex medium and applied to the material with a finely divided metal oxide as synergist, by any convenient means; dried and set in place by baking. The active flame retardant agents are chlorinated cyclopentadieno compounds, chlorobrominated cyclopentadieno compounds, applied alone or in admixture with each other, or in admixture with brominated cyclopentadieno compounds, and in admixture with metallic oxides. The active flame retardant agents are reduced to a fine state of subdivision, preferably under 2 microns average particle diameter.
Claims11
A method of rendering flammable textile materials flame retardant which comprises:
- treating said materials with a flame retardant composition consisting essentially of chlorinated cyclopentadieno compounds, chlorobrominated cyclopentadieno compounds, employed alone or in admixture with each other, or in admixture with brominated cyclopentadieno compounds, and a metallic oxide, in aqueous dispersion, in admixture with an aqueous emulsion of a suitable high molecular weight polymeric adhesive binder, said compounds and metallic oxide being solids at room temperature, substantially totally insoluble in water, having been reduced to an average particle size below 2 microns, and being in weight ratio of 1:4 parts of said compounds to 0.1:1 part of metallic oxide, said high molecular weight polymeric binder being present in amount sufficient to secure said compounds and metallic oxide flame retardant composition to said material, and drying and curing said treated material, wherein the total amount of flame retardant deposited on said material is effective to reduce the flammability of the textile and is durable to laundering and dry cleaning.
Dependencies are inferred from the claim text.