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AssigneeCeramicoat International Limited
InventorsArun Shripad Wagh, Michael Anthony Jackson
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Novel formulations of inorganic, chemically bonded, phosphate alumino silicate sprayable coatings are disclosed. The disclosed coatings retain all the positive attributes of similar coatings disclosed in recent patents on corrosion and fire protection, and in addition, provide, superior surface toughness and smoothness, better abrasion and acid resistance, less erosion and longer durability with zero flame-spread coatings on wood surfaces. Being pore-free, water cannot penetrate into these coatings. Unlike the previous inorganic oxide-based phosphate coatings, the glassy phase in these coatings provides a translucent and dense surface. The component pastes are smoother to pump, do not settle or harden during storage and transport, and in addition, do not exhibit pozzalinic properties.
A two-part aqueous sprayable system of a reactive mixture of an acidic paste and an inorganic neutral or alkaline powdered glass that are mixed to form alumino-silicate coatings, resins and solids.
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To improve the optical or heat reflectivity of the coating, we claim addition of glassy silicate and aluminates, or alumino-silicate materials, certain heat reflective minerals, such as but not limited to, periclase crystalline magnesium oxide, rutile, and for heat absorption, natural minerals or man-made products such as, but not limited to, black iron oxide (magnetite), and lamp black carbon, or graphite. The heat reflective or absorptive additives may be blended into the silicate materials at a loading of 1-10% by weight that have ability to reflect most of the heat radiation (infra-red radiation) or absorb heat thereby reducing or increasing heat transfer through the coating.
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The extruded mixed paste that sets rapidly may be used for production of designed ceramic forms using 3-D printers, or by simple extrusion. The resulting set form is a glass-ceramic. We claim the resulting products and methods of their production.
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Dependencies are inferred from the claim text.