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Desaraju V. Varaprasad, Ann Arbor US

Desaraju V. Varaprasad, Ann Arbor, MI US

Patent application numberDescriptionPublished
20080268260Coated glass substrate with heat treatable ultraviolet blocking characteristics - A composite oxide coating is provided on a substrate over an optional infrared (IR) blocking multi-layer coating (e.g., low-E coating), where the composite oxide coating efficiently blocks ultraviolet (UV) radiation. An organic polymer top coating may be provided over the composite oxide, where the organic polymer may be formed by exposing a photomonomer and/or photopolymer to radiation (e.g., UV radiation). The coated glass substrate may be heat and/or crack resistant and may be subjected to a high temperature heat treatment step. The coated article may be effective at blocking IR and/or UV radiation in applications such as window applications. The UV blocking coating may include ceria, titania, and silica as UV blocker(s) in certain example embodiment of this invention.10-30-2008
20080302462Method of making coated glass article, and intermediate product used in same - In certain example embodiments of this invention, there is provided a method of making a window, the method including: forming a multi-layered low-E and/or solar control coating on a glass substrate; providing at least two flexible protective sheets in non-liquid form to the glass substrate over at least part of the low-E and/or solar control coating; applying at least one protective coating in liquid form, before and/or after the flexible protective sheets are provided, so as to reduce one or more gaps formed between the low-E and/or solar control coating and the flexible protective sheet(s) and/or between the flexible protective sheets; and performing one or more of cutting, edge seaming, and/or washing the coated article with the protective coating and protective sheets thereon and peeling the protective sheets and at least part of the protective coating off of the top surface of the low-E and/or solar control coating. Heat treatment (e.g., thermal tempering) may then be performed, and the heat treated coated article may be used in a window unit or the like.12-11-2008
20090025776Method of making an antireflective silica coating, resulting product, and photovoltaic device comprising same - A low-index silica coating may be made by forming a silica precursor having a radiation curable composition including a radiation curable monomer and/or a photoinitiator, and also including a silica sol comprising a silane and/or a colloidal silica. The silica precursor may be deposited on a substrate (e.g., glass substrate) to form a coating layer. The coating layer may then be cured via exposure to electromagnetic radiation, such as UV radiation. Then, the cured coating layer may be fired using temperature(s) of from about 550 to 700° C., in forming the low-index silica based coating. The low-index silica based coating may be used as an antireflective (AR) film on a front glass substrate of a photovoltaic device (e.g., solar cell) in certain example instances.01-29-2009
20090025777Method of making an antireflective silica coating, resulting product and photovoltaic device comprising same - A low-index silica coating may be made by forming a silica precursor having a radiation curable composition including a radiation curable monomer and/or a photoinitiator, and also including a silica sol comprising a silane and/or a colloidal silica. The silica precursor may be deposited on a substrate (e.g., glass substrate or silicon wafer) to form a coating layer. The coating layer may then be cured via exposure to electromagnetic radiation, such as UV radiation. Then, the cured coating layer may be fired using temperature(s) of from about 550 to 700° C., in forming the low-index silica based coating. The low-index silica based coating may be used as an antireflective (AR) film on a front glass substrate of a photovoltaic device (e.g., solar cell) in certain example instances.01-29-2009
20090044897Method of making a heat-treated coated glass article using a polymer dispersion - A temporary protective coating is provided over a coated glass substrate. The temporary protective coating is preferably applied in an aqueous dispersion then solidified on the substrate. In some instances, the temporary protective coating may be removed by treatment with a basic solution. In certain example embodiments, the temporary protective coating is applied after heat treatment before the coated substrate is coupled to another substrate to form a window unit such as an IG window unit or a laminated vehicle windshield.02-19-2009
20090068350Method of making coated glass article using a monomeric material, and intermediate product used in same - A temporary protective coating is provided over a coated glass substrate. The temporary protective coating is preferably applied in liquid form then solidified on the substrate. In some instances, the temporary protective coating may be easily removed by simply peeling it off. In certain example embodiments, the temporary protective coating is applied after heat treatment and is removed by peeling it off before the coated substrate is coupled to another substrate to form a window unit such as an IG window unit or a laminated vehicle windshield.03-12-2009
20090075092Method of making an antireflective silica coating, resulting product, and photovoltaic device comprising same - A low-index silica coating may be made by forming silica sol comprising a silane and/or a colloidal silica. The silica precursor may be deposited on a substrate (e.g., glass substrate) to form a coating layer. The coating layer may then be cured and/or fired using temperature(s) of from about 550 to 700° C. A surface treatment composition comprising an organic material comprising an alkyl chain or a fluoro-alkyl chain and at least one reactive functionality comprising silicon and/or phosphorous may be formed, deposited on the coating layer, then cured and/or fired to form an overcoat layer Preferably, the overcoat layer does not substantially affect the percent transmission or reflection of the low-index silica coating. The low-index silica based coating may be used as an antireflective (AR) film on a front glass substrate of a photovoltaic device (e.g., solar cell) or any other suitable application in certain example instances.03-19-2009
20090101209Method of making an antireflective silica coating, resulting product, and photovoltaic device comprising same - A low-index silica coating may be made by forming silica sol including a silane and/or a colloidal silica. The silica precursor may be deposited on a substrate (e.g., glass substrate) to form a coating layer. The coating layer may then be cured and/or fired using temperature(s) of from about 550 to 700° C. A barrier undercoating including a metal oxide, such as, silica, alumina, titania, zirconia, and/or an oxynitride of silica may be deposited between the coating layer and substrate. Preferably, the barrier undercoating does not substantially affect the percent transmission or reflection of the low-index silica coating. The low-index silica based coating may be used as an antireflective (AR) film on a front glass substrate of a photovoltaic device (e.g., solar cell) or any other suitable application in certain example instances.04-23-2009
20090311423Surface-assisted combustion deposition deposited coatings, and/or methods of making the same - Certain example embodiments relate to surface-assisted combustion deposition deposited coatings (e.g., metal oxide coatings) formed on glass substrates, and/or methods of making the same. In certain example embodiments, a wet-applied (e.g., sol-gel applied) pre-treatment coating increases a number of nucleation sites on or proximate to the at least one surface of the substrate to be coated, and/or increases a number of binding sites or forms a binding medium on the at least one surface of the substrate to be coated. A combustion deposition deposited growth is formed thereon. The pre-treatment coating may facilitate the combustion deposition depositing of coatings.12-17-2009
20100024874Titania coating and method of making same - Methods of making titania coatings having self-cleaning properties, and associated articles are provided. In certain example instances, a substrate supports a layer comprising titanium dioxide. The substrate may support multiple layers. After curing using ultraviolet radiation and/or electron beams, the resulting coating may inhibit fouling.02-04-2010
20100024953Method of making a coated glass article, and intermediate product used in same - A temporary protective coating is provided over a coated glass substrate. The temporary protective coating includes a hot melt adhesive and is preferably applied in liquid form then solidified on the substrate. Moreover, the temporary protective coating can be easily removed by simply peeling it off. In certain example embodiments, the temporary protective coating is applied after heat treatment and is removed by peeling it off before the coated substrate is coupled to another substrate to form a window unit such as an IG window unit or a laminated vehicle windshield.02-04-2010
20100027144Articles with protective coating - A first-surface mirror or other substrate includes protective coating and is for use in a solar collector, projection television, or the like. In certain example embodiments, a protective coating is formed over a reflective coating of a first surface mirror. In other aspects, this application is related to other coated articles, including, for example, articles (such as insulating glass (IG) window units) having coatings providing for low emissivity. In certain example embodiments, the protective coating may comprise organic materials containing alkyl chains or fluoro-alkyl chains and reactive functionalities comprising silicon and/or phosphorous so as to protect the reflective coating and improve durability.02-04-2010
20100086774Display-on-demand mirror with optional defogging feature, and method of making the same - Certain example embodiments relate to robust semi-transparent coatings that are suitable for use in a wide variety of display-on-demand mirror applications, and methods of making the same. In certain example embodiments, a coated article includes a coating supported by a glass substrate. A reflective metal-inclusive layer is formed, directly or indirectly, on the glass substrate. A silicon oxide inclusive layer is formed, directly or indirectly, on the reflective metallic layer. A titanium oxide inclusive layer is formed, directly or indirectly, on the silicon oxide inclusive layer. The metal-inclusive layer is formed so as to reflect incoming light away from the glass substrate such that substantially less incoming light would be reflected away from the glass substrate if lighting were provided on a side of the glass substrate opposite the coating than if no lighting were provided. The surface of the coated article need not necessarily be conductive. The metal-inclusive layer may be connected to a power source so as to heat it (e.g., for defogging purposes).04-08-2010
20110073174MULTI-LAYER ANTI-REFLECTIVE COATINGS AND PROCESSES THEREFOR - Methods for making multi-layered anti-reflective coatings are disclosed. Un-solgel precursor compositions may be prepared having inorganic oxide precursors and UV curable acrylic monomer mixtures, deposited on a substrate, and subsequently the coated substrate may be cured by exposure to electromagnetic radiation, such as UV radiation. The coating layers may be heated using a temperature sufficient to burn off organic content and form a multi-layer anti-reflective coating. Substrates comprising such coatings and photovoltaic devices comprising such substrates and coatings are also disclosed.03-31-2011
20110128137VEHICULAR BLIND SPOT INDICATOR MIRROR - A vehicular blind spot indicator mirror includes a transparent glass substrate having a mirror reflector coated onto the substrate. Visible light reflectance by the mirror reflector coated substrate is at least about 40 percent visible light reflectance for visible light incident upon a front side of the mirror reflector coated substrate. A blind spot indicator light display is disposed to the rear of the mirror reflector coated substrate and emits visible light upon a detection by a blind spot detector. Light emitted by the display passes through the transparent glass substrate to be viewed by a viewer viewing from the front side of the substrate. The display is operable, when electrically powered and when operated in the vehicle during day time driving conditions, to exhibit a display luminance of at least about 60 foot lamberts as measured with the display placed behind, and emitting light through, the transparent glass substrate.06-02-2011

Patent applications by Desaraju V. Varaprasad, Ann Arbor, MI US