Abstract: A laminated glazing panel is disclosed comprising two glass plies and a plastic ply having one or more light emitting diodes mounted on a circuit board laminated between the glass plies, forming an LED device. The circuit board is ordinarily a flexible circuit board comprising a substrate (of, for example, polyimide or polyester) and a conductive layer (for example, a copper foil or conductive ink). Preferably, the plastics ply has a thickness before lamination of 2 mm or lower and the thickness of the laminated glazing panel is 8 mm or lower. A plurality of light emitting diodes may be mounted on the flexible circuit board and laminated between the glass plies; the resultant glazing panel may further comprise indicia on at least one ply. Also disclosed are two processes for the production of a laminated glazing panel, each comprising positioning an LED device in a cut-out in a plastic ply and interleaving the plastic ply between two glass plies, prior to laminating the plies.

Abstract: A process for the production of a heat-treatable low emissivity coated glass that comprises the steps of depositing an underlayer onto a glass substrate and subsequently depositing a reflective metal layer by a vacuum deposition process, wherein the underlayer is deposited by a pyrolytic deposition process. Preferably an anti-reflection layer is deposited by a vacuum deposition process on to the coated glass after deposition of the reflective metal layer. The underlayer may comprise a silicon oxide, the reflective metal layer may comprise silver and the anti-reflection layer may comprise a metal oxide, especially tin oxide or zinc oxide. The coated glass preferably has an emissivity of below 0.2 after heat treatment in an oxidising atmosphere.

Abstract: Novel waterglass compositions comprise a zirconium containing anionic aggregate, preferably potassium zirconium carbonate or ammonium zirconium carbonate, in a quantity sufficient to provide at least 0.5% as zirconium metal. The compositions can be dried and/or gelled to form optically clear interlayers useful in the production of fire resistant glass laminates. The incorporation of the zirconium containing aggregate improves the fire resistant performance of the laminates.

Abstract: A coated substrate, especially a glass substrate, such coated substrate having high photocatalytic activity and low visible light reflection as well as being highly abrasion resistant. Preferably, the coating is a titanium oxide coating, the photolytic activity is greater than 5×10?3 cm?1min?1, and coating side visible light reflection is 35% or lower.

Abstract: A glass article having a solar control coating is disclosed for use in producing heat reducing glass especially for use in architectural windows. The coated article includes a glass substrate, a coating of an antimony doped tin oxide deposited on and adhering to the glass substrate and a coating of fluorine doped tin oxide deposited on and adhering to the surface of the coating of antimony doped tin oxide. The low emittance of the coated glass article, when combined with the surprisingly selective solar absorption of the multilayer stack provides improved heat rejection in summer and heat retention in winter, while permitting the transmittance of a relatively high degree of visible light.

Abstract: A process for the production of a photocatalytically active self-cleaning coated substrate, especially a glass substrate, which comprises depositing a titanium oxide coating on the surface of the substrate by contacting it with a fluid mixture containing a source of titanium and a source of oxygen, the substrate being at a temperature of at least 600° C. The coated surface has good durability, a high photocatalytic activity and a low visible light reflection. Most preferably the deposition temperature is in the range 645° C. to 7200° C. which provides especially good durability. The fluid mixture preferably contains titanium chloride and an ester, especially ethyl acetate. Also disclosed is a self cleaning coated substrate, especially a glass substrate, having high photocatalytic activity and low visible light reflection and a durable self-cleaning coated glass.

Abstract: A color neutral absorbing film is applied as a coating on a glass substrate, to which a conductive coating is first applied. An additional metal oxide layer is deposited on the absorbing film. The coating is suitable for use in anti-reflective coatings containing other metal oxides or mixed metal oxides to achieve a coated glass article having a visible light transmittance of 30% or greater and a reflectance of less than 5%. The coated glass article is absorbing, anti-reflective and conducting.

Abstract: A method of producing flat glass in which foam which appears on the surface of molten glass melted using oxy-fuel burners is dispersed by directing a diffuse, luminescent flame onto the surface of the glass carrying the foam.

Abstract: A process for the production of a coated substrate, preferably glass, comprising depositing a reflective metal, especially a silver, layer by a low pressure deposition process performed in a coating atmosphere that contains a gasous oxygen scavenger. The presence of the gasous oxygen scavenger alleviates oxidation of the silver layer by any oxygen gas present in the coating atmosphere. The gaseous oxygen scavenger may be a hydrocarbon and is preferably methane. The coating process is preferably sputtering.

Abstract: Glazing, thermally tempered to required standards, are produced more readily by tempering panes having a high coefficient of thermal expansion (greater than 93×10−7 per degree Centigrade) and for a low Fracture Toughness (less than 0.72 MPam½). Use of glasses selected according to the invention enables thin glazings (especially glazings less than 3 mm thick) to be tempered to automotive standard with improved yields using conventional tempering methods, and thicker glazings to be tempered at lower quench pressure than required hitherto. Suitable glasses include glasses comprising, in percentages by weight, 64 to 75% SiO2, 0 to 5% Al2O3, 0 to 5% B2O3, 9 to 16% alkaline earth metal oxide other than MgO, 0 to 2% MgO, 15 to 18% alkali mental oxide and at least 0.

Abstract: A process for the production of a low emissivity coating on a glass substrate comprising, in sequence, depositing a reflective metal layer, and reactively sputtering a metal oxide layer over the metal layer in the presence of an oxygen scavenger. The oxygen scavenger is preferably a hydrocarbon, in particular methane. The metal oxide layer may comprise tin oxide, zinc oxide, tungsten oxide and other metal oxides are also likely to be suitable.

Abstract: A high performance green glass composition containing at least 14.5% by weight Na2O, at least 10.5% by weight CaO, at least 0.5% by weight total iron (measured as Fe2O3) and is substantially magnesium-free, the glass thus produced having a ferrous value of at least 30% and a performance (light transmission minus Direct Solar Heat Transmission) of at least 28% at at least one thickness of 2.8 mm to 5 mm. The invention also relates to glasses made from such composition and to a laminated glass assembly in which two sheets of glass sandwich a polymeric material, at least one, preferably both, of the sheets of glass having such a composition.

Abstract: A niobium doped tin oxide coating is applied onto a glass substrate to produce a low emissivity (low E) glass. The coating can optionally be doped with both niobium and other dopant(s), such as fluorine. The low emissivity glass has properties comparable or superior to conventional low E glass with fluorine doped tin oxide coatings.

Abstract: A glass composition capable of being chemically strengthened by ion-exchange within 100 hours to provide a glass with a surface compressive stress of greater then 400 MPa and an ion-exchange depth greater then 200 microns comprising: SiO2 58% to 70% (by weight), Al2O3 5% to 15%, Na2O 12% to 18%, K2O 0.1% to 5%, MgO 4% to 10%, CaO 0% to 1% with the provisos that the total of the Al2O3 and MgO is in excess of 13%, the total of the amounts of Al2O3 plus MgO divided by the amount of K2O is at least 3 and that the sum of the amounts of Na2O, K2O and MgO is at least 22%.

Abstract: Processes for the production of a smooth translucent glass sheet comprise grinding at least one face of a clear glass sheet using a conventional abrasive such as sand. Preferably the clear glass sheet is a sheet of clear float glass. The process may be carried out using a conventional glass grinding and polishing facility operated in a manner that the ground sheet is ground but not polished. The product preferably has a satin finish and a roughness Ra of less than 5.0 &mgr;M and is sufficiently translucent as to be useful in privacy glazing. The ground glass products may have a haze value of from 80 to 90% and an Ra value of from 1.0 &mgr;M to 3.0 &mgr;M are believed to be novel.

Abstract: A boroxine composition having fire and/or flame retardant properties comprising a halo-substituted boroxine in combination with a compound containing an epoxide group curable by the halogenated boroxine compound. A method of making the boroxine comprises reacting the appropriate alcohol with boric acid in the presence of a solvent, usually toluene. In an alternative method, the boroxine is prepared by reacting boric oxide with the corresponding borate, the latter being prepared by reacting the corresponding alcohol with boron trichloride.

Abstract: An intrusion resistant laminated glazing, suitable for automotive use, comprises an impact resistant ply of rigid thermoplastic polyurethane sensitive to ultra-violet radiation and, outside said ply, an ultra-violet absorbing or reflecting ply. The ultra-violet absorbing ply may be of thermoplastic polyurethane interlayer material which serves to bond the rigid thermoplastic polyurethane ply to outer glass plies. By using interlayer materials of low modulus to bond the rigid thermoplastic ply to outer glass plies, a product with good impact resistance and intrusion resistance is achieved.

Abstract: A method of depositing a silicon oxide coating on hot glass at a temperature below 600° C. comprising contacting the hot glass with a gaseous mixture of a source of silicon and oxygen enriched with ozone. Preferably, the hot glass in the form of a hot glass ribbon is contacted with the gaseous mixture during the float glass production process downstream of the float bath. Preferred sources of silicon are silanes, alkylsilanes, alkoxysilanes and siloxanes.

Abstract: Radiation stable glass for space applications, especially glass in the form of thin sheet for cladding of spacecraft, is produced by including at least 5% by weight of barium oxide in a borosilicate glass composition. Because barium has a low absorption in the ultra violet, its use enables radiation stable glasses of low ultra violet absorption to be produced, alleviating problems of overheating when the glasses are used for cladding space craft. The glass is useful in the production of solar cell cover slips and second surface mirrors for cladding purposes, and space applications generally.

Abstract: An electrochromic device having successive layers of electrochromic electrolyte and counter-electrode materials. The counter-electrode material comprises an oxide of a mixture including at least two of vanadium, titanium and zirconium.