Mixture of non-polymer organic components with fire retardancy, preparation method and use

Patent metadata

Field	Value
Publication number	US-12029932-B2
Application number	US-202017790014-A
Country	US
Kind code	B2
Filing date	Dec 29, 2020
Priority date	Dec 31, 2019
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

A pyrophosphate-free mixture with fire retardancy, including a mixture of non-polymer organic components, wherein at least a first compound of the mixture acts as a hydrogen-bridge donor and at least a second compound of the mixture acts as a hydrogen-bridge acceptor. The disclosure also relates to a method for preparing the fire-retardant mixture and to the use thereof as a fire retardant in extinguishing forest fires.

First claim

The invention claimed is:

1. A pyrophosphate-free mixture with fire retardancy, consisting of a thermally stable mixture of non-polymer organic components, wherein:
a. a first compound of the mixture acts as a hydrogen-bridge donor, wherein the hydrogen-bridge donor compound is selected from a group consisting of dicyandiamide, urea, glycerol, guanidine, 1,1-dimethylurea, oxalic acid, ethylene glycol and derivatives, trifluoroacetamide, 1-methylurea, imidazole, 1,3-dimethylurea, lactic acid, resorcinol, 2-imidazoline, arginine, benzoic acid, benzyl alcohol, propylene urea, thiourea, 4-hydroxybenzoic acid, succinic acid, acetamide, benzamide, levulinic acid, gallic acid, ammonium formate, tartaric acid, malonic acid and derivatives, adipic acid, oleic acid, linoleic acid, stearic acid, trimyristin, citric acid and isocitric acid, as well as any of the combinations thereof;
b. a second compound of the mixture acts as a hydrogen-bridge acceptor, wherein the hydrogen-bridge acceptor compound is selected from a group consisting of lidocaine or an ester-type derivative, proline, histidine, nicotinic acid, (phenylmethyl)triphenylphosphonium chloride, alanine, methyltriphenylphosphonium bromide, glycine, ethanolamine, and betaine, as well as any of the combinations thereof; and
c. water, in a percentage comprised between 50% and 95% of the total weight of the mixture,
wherein the molar ratio of the hydrogen-bridge donor compound and the hydrogen-bridge acceptor compound varies from 1:5 to 5:1, and
wherein the hydrogen-bridge donor compound and the hydrogen-bridge acceptor compound are self-assembled by strong hydrogen bonds.

2. A preparation method for preparing the mixture according to claim 1 , consisting of intimately mixing the first compound of the mixture acting as a hydrogen-bridge donor, the second compound of the mixture acting as a hydrogen-bridge acceptor, and water.

3. A method of using the mixture according to claim 1 , as a fire retardant to extinguish a forest fire by applying said mixture to said fire.

Assignees

• Primalchit Solutions S L
• Alandi Escrig Francisco Antonio
• Consejo Superior Investigacion
• Univ Valencia Politecnica
• Consejo Superior Investigacion

Inventors

• Alandí Escrig Francisco Antonio
• Grirrane Tayari Abdessamad
• García Gómez Hermenegildo
• Llobell Lleó Juan
• García Mondria Regina

Classifications

• C09K21/06

  Organic materials · CPC title

• A62D1/0035

  Aqueous solutions · CPC title

• A62D1/0007

  Solid extinguishing substances · CPC title

• A62D1/06 Primary

  containing gas-producing, chemically-reactive components · CPC title

• C09K21/12

  containing phosphorus · CPC title