EUROKERA Patent applications |
Patent application number | Title | Published |
20150197444 | BETA-QUARTZ GLASS CERAMICS WITH CONTROLLED TRANSMISSION AND METHODS OF MAKING SAME - Beta-quartz glass-ceramics containing in their composition neither arsenic oxide nor antimony oxide and having a controlled transmission curve, articles made using the glass-ceramics, including cooktops, and precursor glasses of such glass-ceramics. | 07-16-2015 |
20140238971 | NON-OPAQUE ARSENIC-FREE BETA-SPODUMENE GLASS CERAMIC EXHIBITING BROWN-GREY COLORATION - Methods, compositions, and articles provide for LAS-type glass-ceramics having specific thermo-mechanical, optical and coloration characteristics to yield generally brown-grey products. The glass-ceramic materials may include as colorants iron oxide, vanadium oxide, chromium oxide, cobalt oxide, nickel oxide and/or cerium oxide. | 08-28-2014 |
20140141959 | BETA-QUARTZ GLASS-CERAMICS WITH A CONTROLLED TRANSMISSION CURVE AND A HIGH IRON OXIDE CONTENT; ARTICLES COMPRISING SAID GLASS-CERAMICS, AND PRECURSOR GLASSES - β-quartz lithium aluminosilicate (LAS) glass-ceramics contain neither arsenic oxide nor antimony oxide, are fined with tin oxide and include vanadium oxide, chromium oxide and a high iron oxide content (>950 ppm), and have a controlled transmission curve. Articles such as cook-tops can be made from such glass-ceramics. | 05-22-2014 |
20140141227 | BETA-QUARTZ GLASS-CERAMICS WITH A CONTROLLED TRANSMISSION CURVE AND A HIGH CONTENT OF IRON OXIDE AND OF TIN OXIDE; ARTICLES IN SAID GLASS-CERAMICS, PRECURSOR GLASSES - β-quartz lithium aluminosilicate (LAS) glass-ceramics contain neither arsenic oxide nor antimony oxide, are fined with tin oxide and include vanadium oxide, chromium oxide and a high iron oxide content (>1500 ppm), and have a controlled transmission curve. Articles such as cook-tops can be made from such glass-ceramics. | 05-22-2014 |
20140135201 | TRANSPARENT, COLORLESS, TIN-FINED LAS GLASS-CERAMICS WITH IMPROVED MICROSTRUCTURE AND OPTICAL PROPERTIES - Transparent, essentially colorless and non-diffusing β-quartz glass-ceramics and glass compositions for forming the same have a composition, free of arsenic oxide, antimony oxide and rare earth oxides except for inevitable trace amounts, which contains, expressed as percentages by weight of oxides 62-72% of SiO | 05-15-2014 |
20100167903 | TRANSPARENT, COLORLESS LOW-TITANIA BETA-QUARTZ GLASS-CERAMIC MATERIAL - The invention mainly relates to a transparent, essentially colorless/?β-quartz glass-ceramic material, the composition of which is free of As | 07-01-2010 |
20090314034 | FLOAT PROCESS FOR A GLASS-CERAMIC - The invention relates to a process for manufacturing a flat ribbon of precursor glass for a glass-ceramic, comprising the continuous floating of the molten glass on a bath of molten metal in a float chamber, said glass being poured in the molten state at a temperature above its devitrification onset temperature onto the molten metal upstream of the chamber, said glass progressively forming a ribbon that runs along said metal bath, the cooling rate of the glass being at least 18° C./min between, on the one hand, the moment when the glass is at the theoretical temperature for which the devitrification rate is a maximum and, on the other hand, the later moment when the glass is at the theoretical temperature at which the devitrification crystal growth rate becomes less than 1 micron per minute. The glass thus floated does not undergo any devitrification. | 12-24-2009 |