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US 8,603,231 B2Granted
Phosphate bonded composites and methods
AssigneeLatitude 18, Inc.
InventorsArun S. Wagh, Sameerkumar Vasantlal Patel, Anand Paul Mangalam
Life of this patent
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Abstract
Inorganic-organic composite articles and methods for producing them using inorganic acidic/alkaline precursor components as inorganic adhesives is provided. Articles prepared therefrom provide improved flexibility, zero flame spread, no release of volatile organic compounds, and low carbon foot print.
Claims42
A method of producing a composite product, the method comprising
- providing an organic material, and
- contacting the organic material with an inorganic adhesive, the inorganic adhesive comprising a mixture of an inorganic acidic precursor and an alkaline precursor, the inorganic acidic precursor comprising at least one of a saturated solution of phosphoric acid, sodium dihydrogen phosphate (NaH2PO4), potassium dihydrogen phosphate (KH2PO4), cesium dihydrogen phosphate (CsH2PO4), magnesium dihydrogen phosphate (Mg(H2PO4)2.2H2O), calcium dihydrogen phosphate (Ca(H2PO4)2.2H2O), zinc dihydrogen phosphate (Zn(H2PO4)2), mono aluminum hydro phosphate (AlH3(PO4)2.H2O), MgCl2, MgSO4, and mixtures thereof wherein the inorganic acidic precursor and the alkaline precursor are each mixed separately with the organic material, to form, independently, separate acidic fiber pulp or fiber, and separate alkaline pulp or fiber.
A method of producing non-flammable blowable insulation, the method comprising
- providing a blowable material comprising at least one of shredded paper, saw dust, wood shavings, shredded plastics, glass particles or glass fibers;
- gypsum, expandable clays, or mixtures thereof;
- providing an inorganic adhesive, the inorganic adhesive comprising:
- (i) an inorganic acidic component comprising at least one of a saturated solution of phosphoric acid, sodium dihydrogen phosphate (NaH2PO4), potassium dihydrogen phosphate (KH2PO4), cesium dihydrogen phosphate (CsH2PO4), magnesium dihydrogen phosphate (Mg(H2PO4)2.2H2O), calcium dihydrogen phosphate (Ca(H2PO4)2.2H2O), zinc dihydrogen phosphate (Zn(H2PO4)2), MgCl2, MgSO4, mono aluminum hydrophosphate (AlH3(PO4)2.H2O), and mixtures thereof;
- and
- (ii) an alkaline precursor comprising a saturated solution or a paste of at least one of a monovalent-, divalent-, or trivalent-metal oxide or hydroxide of magnesium, calcium, iron, manganese, zinc, barium, strontium, aluminum or lanthanide, and mixtures thereof;
- contacting the material with the inorganic adhesive for a sufficient time to bond the inorganic adhesive with the blowable material;
- and
- providing a non-flammable, blowable insulation.
6 more elements
A method of producing fire resistant paper and paper products, the method comprising
- providing a cellulosic material;
- providing an inorganic adhesive comprising as components:
- (i) an inorganic phosphate solution comprising at least one of a saturated solution of phosphoric acid, or an acid phosphate salt comprising sodium dihydrogen phosphate (NaH2PO4), potassium dihydrogen phosphate (KH2PO4), cesium dihydrogen phosphate (CsH2PO4), magnesium dihydrogen phosphate (Mg(H2PO4)2.2H2O), calcium dihydrogen phosphate (Ca(H2PO4)2.2H2O), zinc dihydrogen phosphate (Zn(H2PO4)2), MgCl2, MgSO4, mono aluminum hydrophosphate (AlH3(PO4)2.H2O), and mixtures thereof;
- and
- (ii) an alkaline precursor solution comprising at least one of a saturated solution or a paste of at least one of a monovalent-divalent-, or trivalent metal oxide or hydroxide of magnesium, calcium, iron, manganese, zinc, barium, strontium, aluminum or lanthanide, and mixtures thereof;
- combining the cellulosic material and the inorganic adhesive;
- and
- forming a paste comprising the cellulosic material and the inorganic adhesive suitable for paper forming.
5 more elements
Dependencies are inferred from the claim text.