Flame retardant chemical compositions

1 . A composition for imparting flame retardancy, wherein the composition comprises:

an organic salt as a fire-retardant compound,

a surfactant, and

a binder,

wherein the composition is free of ammonium phosphate and boron compounds,

wherein the organic salt can be admixed with the binder without flocculation, creaming or sedimentation,

wherein the organic salt is selected from the group consisting of potassium, magnesium, or bismuth salts of an organic acid, and any combination thereof,

wherein the organic acid is selected from the group consisting of citric acid (CAS number 77-92-9) and its hydrates, and any combination thereof,

wherein the binder comprises at least one member selected from the group consisting of:

a polymer of one or more acrylate monomers independently selected from the group consisting of n-butyl acrylate (BA), methyl methacrylate (MMA), lauryl acrylate, and phenoxy ethyl acrylate;

a copolymer of two or more monomers, each independently selected from the group consisting of acrylates and styrene;

copolymers formed from monomer mixtures comprising BA and MMA together with functional monomers comprising silicon, phosphorus, fluorine, nitrogen derivatives and/or radical generators, or combinations thereof; and

a polymer of an acrylate or styrene, wherein the acrylate is selected from the group consisting of n-butyl acrylate (BA), ethyl acrylate, methacrylates, lauryl acrylate, phenoxy ethyl acrylate, tripropylene glycol diacrylate, hexanediol diacrylate, and trimethylolpropane triacrylate,

wherein the composition comprises 10-70% of the organic salt by weight of the composition, and

wherein the composition is in the form of an aqueous solution.

2 . The composition of claim 1 , wherein the composition further comprises a compound with anti-bacterial and/or anti-fungal activity.

3 . The composition of claim 1 , wherein the composition further comprises a radical generator that further improves fire-retardant properties of the composition.

4 . The composition of claim 1 , wherein the binder comprises a polymer of one or more acrylate monomer(s) independently selected from the group consisting of n-butyl acrylate, methyl methacrylate, lauryl acrylate, and phenoxy ethyl acrylate.

5 . The composition of claim 2 , wherein the binder comprises a copolymer of two or more monomers each independently selected from the group consisting of n-butyl acrylate, methyl methacrylate, and styrene.

6 . The composition of claim 1 , wherein the binder provides a water contact angle equal to or higher than 51° for a coating.

7 . The composition of claim 1 , wherein the composition further comprises a moisture-binding compound.

8 . The composition of claim 3 , wherein the radical generator is selected from the group consisting of sulfenamides, 2,3-dimethyl-2,3-diphenylbutane, 1,4-diisopropylbenzene, alkoxyamines, peroxides, disulfides, azo alkanes, oxyimides, silyl amines, phosphorous-based flame retardants, their derivatives, and mixtures thereof.

9 . The composition of claim 8 , wherein the sulfenamide or the alkoxyamine is selected from the group consisting of bis(1-undecanoxy-2,2,6,6-tetramethylpiperidin-4-yl)carbonate, 1-cyclohexyloxy-2,2,6,6-tetramethyl-4-octadecylaminopiperidine, bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate, 2,4-bis[(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino]-6-(2-hydroxy-ethylamino-s-triazine, bis(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl) adipate, 2,4-bis[(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino]-6-chloro-s-triazine, 1-(2-hydroxy-2-methylpropoxy)-4-hydroxy-2,2,6,6-tetramethylpiperidine, 1-(2-hydroxy-2-methylpropoxy)-4-oxo-2,2,6,6-tetramethylpiperidine, 1-(2-hydroxy-2-methyl-propoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine, bis(1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yl) sebacate, bis(1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yl) adipate, 2,4-bis {N-[1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yl]-N-butyl-amino}-6-(2-hydroxyethylamino)-s-triazine, the reaction product of 2,4-bis[(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-butylamino]-6-chloro-s-triazine with N,N′-bis(3-aminopropyl)ethylenediamine); 2,4-bis[(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino]-6-(2-hydroxy-ethylamino-s-triazine, 2,2,6,6-tetramethyl-1-(phenylthio) piperidin-4-one, 1-((4-methoxyphenyl)thio)-2,2,6,6-tetramethylpiperidin-4-one, 2,2,6,6-tetramethyl-1-((4-nitrophenyl)thio)-piperidin-4-one, 1-(2-nitrophenylthio)-2,2,6,6-tetramethylpiperidin-4-one, 2,2,6,6-tetramethyl-1-(4-methylphenylthio) piperidin-4-one, 1-(2,4,6-trimethylphenylthio)-2,2,6,6-tetramethylpiperidin-4-one, 1-(2-pyridylthio)-2,2,6,6-tetramethylpiperidin-4-one, 1,2-bis(2,2,6,6-tetramethyl-1-(phenylthio) piperidin-4-ylidene) hydrazine, 2,2,6,6-tetramethyl-1-(phenylthio)-4-piperidyl methacrylate, 2,2,6,6-tetramethyl-1-(((thioxo-24-sulfaneylidene)amino)thio) piperidin-4-one, trans-2,5-dimethyl-1,4-bis(phenylthio) piperazine, 1-butylsulfanyl-2,2,6,6-tetramethylpiperidine, 4′-thiobis-morpholine, 1,1′-thiobis-(2,6-dimethyl) piperidine, 1,1′-thiobis-(2,2,6,6-tetramethyl) piperidine, N-1,5,9-((4-methoxyphenyl)thio))-bis-(2,2,6,6-tetramethyl-4-piperid-yl)-amine, 1,1′-thiobis phthalimide, 1,1′-thiobis-carbazole, 2-[(4-methoxyphenyl)thio]-1H-isoindole-1,3(2H)-dione, 9-(phenylthio)-9H-carbazole, 9-[(4-methoxyphenyl)thio]-9H-carbazole, N-2-naphthalenyl-N-phenyl-4-methylbenzenesulfenamide, N-bis[4-(1-methyl-1-phenylethyl)phenyl]-4-methylbenzenesulfenamide, N-cyclohexyl-S-phenyl-N-(phenylthio)thiohydroxylamine, 2,4,6-tris(4-morpholinylthio)-[1,3,5]zine, S-(benzo[d]thiazol-2-yl)-N,N-diisopropylthiohydroxylamine, S-(benzo[d]thiazol-2-yl)-N,N-dicyclohexylthiohydroxylamine, S-(benzo[d]thiazol-2-yl)-N-(benzo[d]thiazol-2-ylthio)-N-(tert-butyl)-thiohydroxylamine, ben-zo[c][1,2,5]thiadiazole, 3-(piperazin-1-yl)¬benzo[d]isothiazole, 5-nitrobenzo[c]isothiazol-3-amine, 3-phenyl-1,2,4-thiadiazol-5-amine, bis(2,2,6,6-tetramethyl-1-(phenylthio) piperidin-4-yl) decanedioate, bis(2,2,6,6-tetramethyl-1-(phenylthio) piperidin-4-yl)carbonate and 1,3-bis(phenylthio)-1H-benzo[d]imidazol-2(3H)-one, or any mixture thereof.

10 . The composition of claim 2 , wherein the compound with antifungal and/or antibacterial activity is selected from the group consisting of nitrates, silver nitrate, nitrites, sodium nitrite, benzoates, sodium benzoate, sulfites, sulfur dioxide, and any combination thereof.

11 . The composition of claim 1 , wherein said composition additionally comprises a pigment.

12 . The composition of claim 1 , wherein the binder additionally comprises a phosphorous compound.

13 . A method of imparting flame retardancy to a material comprising applying a composition of claim 1 to the material.

14 . The composition of claim 1 , wherein the surfactant is selected from the group consisting of dialkyl sulfosuccinates, polyether-modified polysiloxanes, and fatty alcohol ethoxylates or mixtures thereof.

15 . The composition of claim 1 , wherein the composition comprises 10-40% of the organic salt by weight of the composition.

16 . The composition of claim 1 , wherein the composition comprises 10-23% of the organic salt by weight of the composition.

17 . The composition according to claim 1 , wherein all components of the composition are present in a mixture.