초록 ▼

Concentrated ammonium salt compositions containing a binder and a viscosity control agent, when utilized in aqueous dispersion, are stabilized against gelation by addition of an inhibitor. The aqueous dispersion is applied to foliage, vegetation, logging slash and the like to hinder or prevent wildf

Concentrated ammonium salt compositions containing a binder and a viscosity control agent, when utilized in aqueous dispersion, are stabilized against gelation by addition of an inhibitor. The aqueous dispersion is applied to foliage, vegetation, logging slash and the like to hinder or prevent wildfires during prolonged weather exposure. Typical gelation inhibitors are morpholine, ethylenediamine and monoethanolamine.

대표청구항 ▼

A concentrated ammonium salt composition suitable for use in the preparation of aqueous weather-durable fire retardants which comprises: (a) An ammonium salt selected from the group consisting of monoammonium orthophosphate, diammonium orthophosphate, monoammonium-alkali metal mixed orthophosphates,

A concentrated ammonium salt composition suitable for use in the preparation of aqueous weather-durable fire retardants which comprises: (a) An ammonium salt selected from the group consisting of monoammonium orthophosphate, diammonium orthophosphate, monoammonium-alkali metal mixed orthophosphates, diammonium-alkali metal mixed orthophosphates, ammonium-alkaline earth metal mixed orthophosphates, ammonium sulfate, ammonium polyphosphates, substituted ammonium polyphosphates, amide polyphosphates, melamine polyphosphates, and mixtures thereof; (b) a reactive, water-soluble binder which Insolubilizes upon drying; (c) a water-dispersible, viscosity control agent which imparts thixotropic flow properties to an aqueous dispersion of said composition; and (d) a gelation inhibitor: (i) having a thermodynamic acid dissociation (pKa) value greater than 8.0 at 25°C.; and (ii) being present in sufficient amount to maintain an aqueous dispersion of (a), (b) and (c) at a solution pH above about 8.5.