IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0897293
(2004-07-21)
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발명자
/ 주소 |
- Mazany, Anthony M.
- Robinson, John W.
- Cartwright, Craig L.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
3 인용 특허 :
44 |
초록
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A modified alkali silicate composition for forming an inorganic network. The modified alkali silicate matrix is made by reacting an alkali silicate (or its precursors such as an alkali hydroxide, a SiO2 source and water), an acidic oxoanionic compound such as phosphoric acid, water and optionally on
A modified alkali silicate composition for forming an inorganic network. The modified alkali silicate matrix is made by reacting an alkali silicate (or its precursors such as an alkali hydroxide, a SiO2 source and water), an acidic oxoanionic compound such as phosphoric acid, water and optionally one or more multivalent cation(s) selected from Groups 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 or 16 of the periodic table such as an alkaline earth salt, water and optional processing aids. An inorganic matrix composite can be prepared by applying a slurry of the modified aqueous alkali silicate composition to a reinforcing medium and curing the composite at a temperature from about 15° C. up to 1000° C. and a pressure of up to 20,000 psi for typical high-performance organic polymer processing (temperatures about 15° C. to about 200° C. and pressures <200 psi). The composite can be shaped by compression molding as well as other known fabrication methods.
대표청구항
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1. A method of making an inorganic silicate composite comprising the steps of: applying an aqueous slurry of a mixture of an alkali silicate, an oxoanionic compound, a clay filler, an alkaline earth salt and water to a reinforcing medium and curing the composite by applying heat at a temperature of
1. A method of making an inorganic silicate composite comprising the steps of: applying an aqueous slurry of a mixture of an alkali silicate, an oxoanionic compound, a clay filler, an alkaline earth salt and water to a reinforcing medium and curing the composite by applying heat at a temperature of about 15° C. up to about 1000° C.+, an external pressure from ambient to about 20,000 psi, and optionally under a vacuum of about ambient to about 10?3 torr.2. The method of claim 1, wherein the composite is cured at a temperature of about 15° C. up to about 200° C. and an external pressure from ambient to about 200 psi, and optionally under a vacuum of about ambient to about 10?3 torr.3. The method of claim 1, wherein the uncured composite is in form of bulk molding compound, sheet molding compound, powder and reinforcement, liquid and reinforcement, or prepreg.4. The method of claim 1, wherein the composite is cured using processes which include compression molding, pultrusion, wet lay-up, filament winding, autoclave vacuum bag processing, non-autoclave vacuum bag processing, vacuum infusion, liquid resin, film infusion or powder infusion, resin transfer molding, extrusion, injection molding, casting, spin casting, or trapped elastomer molding.5. The method of claim 1, wherein the composite is consolidated before and/or during the curing process.6. The method of claim 1, wherein the slurry includes additional filler materials of carbon fibers, glass fibers, alkali resistant fibers, mineral fibers, organic fibers, ceramic fibers or metallic fibers, or combinations thereof.7. The method of claim 1, wherein the slurry includes additional filler materials of graphite fibers, E-glass fibers, S-glass fibers, stainless steel fibers, titanium fibers, nickel alloy fibers, aramid fibers, polyethylene fibers, basalt fibers, SiC fibers or BN fibers, or combinations thereof.8. The method of claim 1, wherein the reinforcing medium is a glass fiber such as an E-glass fiber, S-glass fiber and/or an alkaline resistant fiber.9. The method of claim 1, wherein the slurry further includes a surface-active agent.10. The method of claim 1, wherein the slurry further includes an anionic, cationic or a nonionic surface-active agent, or combinations thereof.11. The method of claim 1, wherein the slurry further includes a surface-active agent of an alkylaryl sulfonate, silicone, quaternary ammonium salt, protonated organoamine salt, or combinations thereof.12. The method of claim 1, wherein the slurry further includes a surface-active agent in an amount from none to about 10 wt. % based upon the weight of the total composition.13. The method of claim 1, wherein the slurry further includes a surface-active agent in an amount from 0.5 wt. % to about 5 wt. % based upon the weight of the total composition.14. The method of claim 1, wherein said oxoanionic compound is phosphoric acid or a salt of phosphoric acid.15. The method of claim 1, wherein the slurry includes filler materials comprising ceramic powder, mineral powder, silicon carbide, silicon nitride, silicate, aluminum silicate, sodium aluminum silicate, potassium aluminum silicate, carbon, carbon black, molybdenum, or a molybdenum containing compound.16. A method of making an inorganic silicate composite comprising the steps of: applying an aqueous slurry of a mixture of an alkali silicate, phosphoric acid, water and optionally a clay filler, an alkaline earth salt and/or a gel modifier to a reinforcing medium and curing the composite by applying heat at a temperature of about 15° C. up to about 1000° C. and external pressures from ambient pressure to about 20,000 psi and/or under a vacuum of from about ambient to about 10?3 torr.
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