Claims
- 1. A fire-retardant composition comprising the following:
a phosphate, a metal oxide, a metal silicate, a silica containing filler; and water, wherein the weight percent ratio of the phosphate to metal oxide is between 1:1 and 3:1.
- 2. The fire-retardant composition of claim 1, further comprising a charring agent present at between 1-20 weight percent.
- 3. The fire-retardant composition of claim 1, further comprising silica sand present at between 5-50 weight percent.
- 4. The fire-retardant composition of claim 1, wherein the phosphate is selected from the group consisting of: alkali or alkali earth metal phosphates, mono-ammonium phosphate, diammonium phosphate, phosphoric acid, aluminum phosphate, and combinations thereof.
- 5. The fire-retardant composition of claim 1, wherein the phosphate is mono-potassium phosphate.
- 6. The fire-retardant composition of claim 1, wherein the metal oxide is selected from the group consisting of: alkali metal and alkali earth metal oxides, iron oxide, aluminum oxide, zinc oxide and combinations thereof.
- 7. The fire retardant composition of claim 1, wherein the metal oxide is MgO.
- 8. The fire retardant composition of claim 1, wherein the silicate is selected from the group consisting of: alkali metal and alkali earth metal silicates, aluminum silicate, alumina silicate, alumino silicate, magnesium silicates, talc and combinations thereof.
- 9. The fire retardant composition of claim 1, wherein the silicate is CaSiO3.
- 10. The fire retardant composition of claim 1, wherein the silica containing filler is selected from the group consisting of: silica powder, silica fume, rice hull ash, fly ash, granite dust, volcanic glasses, kyanite, mullite, sand, clay, cenospheres, ceramicspheres, bauxite, and mixtures thereof.
- 11. The fire retardant composition of claim 1, wherein the silica containing filler is silica powder.
- 12. The fire retardant composition of claim 1, wherein the weight ratio of the phosphate to metal oxide is approximately 2:1.
- 13. The fire retardant composition of claim 1, wherein the phosphate is present at approximately 32 weight percent.
- 14. The fire retardant composition of claim 1, wherein the metal oxide is present at approximately 15 weight percent.
- 15. The fire retardant composition of claim 1, wherein the silicate is present at approximately 7 weight percent.
- 16. The fire retardant composition of claim 1, wherein the silica containing filler is present at approximately 22 weight percent.
- 17. The fire retardant composition of claim 1, wherein water is present at approximately 24 weight percent.
- 18. A fire-retardant composition comprising the following:
a phosphate at between 15-45 weight percent; a metal oxide at between 5-35 weight percent; a silica containing filler at between 15-45 weight percent; a metal silicate at between 1-45 weight percent; and water at between 15-35 weight percent.
- 19. A fire-retardant composition comprising the following:
a phosphate, a metal oxide, a calcium containing compound; a silica containing filler, and water; wherein the weight ratio between the phosphate and the metal oxide is between 1:1 and 3:1.
- 20. A fire-retardant composition of claim 19 wherein the calcium containing compound is tri-calcium phosphate.
- 21. A fire-retardant comprising:
a) a means for providing fire-retardancy to a substrate,
wherein the fire-retardant is derived from a mixture of KH2PO4, a metal oxide, a metal silicate, a silica containing filler and water, where the weight ratio between KH2PO4the metal oxide is between 1:1 and 3:1.
- 22. A fire-retardant described in claim 19, wherein the substrate is cellulose-based.
- 23. A fire-retardant described in claim 19, wherein the substrate is selected from the group consisting of: steel, ferrous metals, non-ferrous metals, woods, gypsums, wood composites, concrete, mortars, synthetics products, paper, carbon composites, foamed polymeric materials and combinations thereof.
RELATION TO OTHER APPLICATIONS
[0001] The present application is a Continuation-In-Part of, and seeks priority to, U.S. patent application Ser. No. 10/685,214 filed Oct. 14, 2003, which is a Continuation-In-Part of, and seeks priority to U.S. patent application Ser. No. 10/338,425 filed Jan. 8, 2003, which is a divisional of U.S. patent application Ser. No. 09/602,067, filed Jun. 22, 2000, now U.S. Pat. No. 6,533,821, all of which are hereby incorporated by reference in their entireties.
Divisions (1)
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Number |
Date |
Country |
Parent |
09602067 |
Jun 2000 |
US |
Child |
10338425 |
Jan 2003 |
US |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
10685214 |
Oct 2003 |
US |
Child |
10818268 |
Apr 2004 |
US |
Parent |
10338425 |
Jan 2003 |
US |
Child |
10685214 |
Oct 2003 |
US |