| Patents for C03C 1 - Ingredients generally applicable to manufacture of glasses, glazes or vitreous enamels (3,901) |
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| 06/12/1991 | EP0431286A2 Silicate glass building material |
| 06/11/1991 | US5023208 Reacting ingredients in mold, hydrothermal aging, drying to in crease pore size of gel matrix |
| 05/28/1991 | US5019293 Use of hydrogen peroxide in preparing magnesium containing silicate sols for coating and fiber formation |
| 05/28/1991 | US5019171 Reclaiming inorganic reinforcement component from organic resin-containing scrap materials |
| 05/28/1991 | US5019146 Hydrolysis of metal alkoxide |
| 05/28/1991 | CA1284418C Process for manufacturing a product suitable for producing pure quartz glass as well as a process for producing pure quartz glass from this product and use of this product for growing piezoelectric crystals |
| 05/21/1991 | US5017695 Ceric hydrocarbyl silyloxides and process for their preparation |
| 05/21/1991 | CA1284393C Catalysts for accelerating burnout of organic materials |
| 05/14/1991 | US5015605 Heating A Molded Part Containing An Organopolysiloxane In A Nonoxidizing Or Vacuum Atmosphere |
| 04/23/1991 | US5009879 Opacifier for vitreous enamels |
| 04/23/1991 | US5009688 Polymerizing metal or silicon alkoxide in presence of organic polymer;calcining |
| 04/18/1991 | WO1991004951A1 Process for making a lightweight cellular inorganic material |
| 04/16/1991 | US5008219 Process for producing glass |
| 04/09/1991 | US5006144 Redox system;melting under oxidizing conditions, then reducing |
| 04/03/1991 | CN1050369A Process of production of glass transformed into continuous or staple fibers |
| 04/02/1991 | US5004706 Producing molten glass and batch components therefor |
| 04/02/1991 | CA1282245C Vitrification of asbestos waste |
| 03/30/1991 | CA2026559A1 Process for making a lightweight cellular inorganic material |
| 03/27/1991 | EP0419322A1 Process of making glass to be transformed into continuous or discontinuous fibres |
| 03/20/1991 | EP0418010A2 Disposal of spent vanadium pentoxide catalysts by vitrification |
| 03/12/1991 | US4998486 Landfill pollution control for polychlorinated biphenyls, firing |
| 03/12/1991 | CA1281190C Vacuum refining of glassy materials with controlled foaming |
| 02/28/1991 | DE4026312A1 Optical element with refractive index distributions - produced by density gradients of constituents |
| 02/27/1991 | EP0414001A2 Process for the photoinitiative control of inorganic structure formation in the sol-gel process |
| 02/19/1991 | US4994414 Method of producing bioactive ceramics containing apatite crystal |
| 02/19/1991 | US4993646 Powdery, granular and conglomerate material treating apparatus |
| 01/30/1991 | EP0410889A1 Process and apparatus for treating glass waste or mineral fibres for recovery |
| 01/29/1991 | US4988376 Heating with fluxing agent to form slag |
| 01/27/1991 | CA2021735A1 Process and device for recoverable glass or numeral fiber wastes |
| 01/10/1991 | WO1991000140A1 Use of hydrogen peroxide in preparing magnesium containing silicate sols for coating and fiber formation |
| 01/09/1991 | CN1011138B Glass body formed from vapour-derived gel and process for producing same |
| 01/08/1991 | US4983370 Purified quartz and process for purifying quartz |
| 01/08/1991 | CA1278688C Manufacturing vitreous beads |
| 12/27/1990 | EP0403622A1 Process for manufacturing a vitreous material, for use, in particular, in the jewellery trade. |
| 12/27/1990 | CA1278193C Method for preparation of silicate glasses of controlled index ofrefraction and optical device including same |
| 12/25/1990 | US4979973 Preparation of fused silica glass by hydrolysis of methyl silicate |
| 12/19/1990 | EP0402610A2 Process for the preparation of silica glass powders |
| 12/18/1990 | US4977837 Process and apparatus for reducing heavy metal toxicity in fly ash from solid waste incineration |
| 11/22/1990 | EP0398298A1 Method for transforming surplus mud from purification processes for civil and/or industrial recycled water into inert substances and plant for the realisation of this method |
| 11/07/1990 | EP0395789A1 Process for the purification of waste gases emitted from a melting furnace |
| 10/31/1990 | EP0395397A2 Process and apparatus for treatment of excavated landfill material in a plasma fired cupola |
| 10/30/1990 | CA1275572C Foam control method for vacuum refining of glassy materials |
| 10/27/1990 | CA2013591A1 Process and apparatus for treatment of excavated landfill material in a plasma fired cupola |
| 10/23/1990 | US4965055 Preparation of ultra-pure metal halides |
| 10/09/1990 | US4961767 Method for producing ultra-high purity, optical quality, glass articles |
| 10/03/1990 | EP0390397A2 A method of making alumina-silica glass and other powders |
| 10/03/1990 | CN1045753A Aqueous colloidal dispersion of fumed silica without stabilizer |
| 09/27/1990 | DE3909380A1 Process and apparatus for the disposal and processing of fluorescent lighting tubes and gas-pressure lamps |
| 09/26/1990 | EP0389314A1 Process and apparatus for melting materials containing mineral fibres |
| 09/16/1990 | WO1990010596A1 Improved vitreous silica products |
| 09/11/1990 | US4956158 Stabilization of fluorides of spent potlining by chemical dispersion |
| 09/11/1990 | US4956059 Treatment with chlorine or hydrogen chloride, electric fields to remove alkali |
| 09/05/1990 | EP0385753A2 Synthetic silica glass articles and a method for manufacturing them |
| 09/05/1990 | CN1009461B Luminous decoration technology using famille rose pigment of imitation ceramics |
| 08/23/1990 | WO1990009211A1 A method of treating toxic waste |
| 08/22/1990 | EP0383378A1 Glass-like monoliths constituted by silicon oxide and titanium oxide and process for preparing them |
| 08/16/1990 | EP0382310A2 Process for preparing monoliths of aerogels of metal oxides |
| 08/09/1990 | DE3901842A1 Method for separating picture tube glass from picture tubes and its cleaning and a device for carrying out the method |
| 08/07/1990 | US4946811 Method for mixing molten iron silicate with ferroalloy slag in order to produce fire-resistant and chemically resistant fiber |
| 07/26/1990 | WO1990008169A1 Organic modified silicic acid heteropolycondensates |
| 07/24/1990 | US4943542 Sol-gel process, noncracking, good optical properties |
| 07/24/1990 | US4943425 Method of making high purity dense silica of large particle size |
| 07/20/1990 | CA2045511A1 Organic modified silicic acid heteropolycondensates |
| 07/18/1990 | CN1043922A Silicate glass producted by beet sugar refinery filter mud |
| 07/17/1990 | US4941993 Process for the production of condensation products which can be converted into glass |
| 07/12/1990 | WO1990007471A1 Process for manufacturing a vitreous material, for use, in particular, in the jewellery trade |
| 07/10/1990 | US4940571 From tetraalkyl silicate |
| 06/27/1990 | EP0375548A1 Silicon oxynitride glass precursors, silica gels for the preparation of these precursors, silicon oxynitride glass obtained from these precursors, and methods for the preparation of these products |
| 06/26/1990 | US4937208 Using acid and basic catalyst |
| 06/20/1990 | EP0374024A1 Glass compound, precursor of said compound and gel based on silica, lead and an alkaline metal, and process for preparing same |
| 06/20/1990 | EP0373557A2 Process for operating a glass melting furnace |
| 06/20/1990 | CN1008437B Raw material and similarity with stage burning and preheat melting |
| 06/06/1990 | EP0371629A1 Optical fibre manufacture |
| 06/06/1990 | EP0371343A1 Titanium dioxide, process for its preparation and use thereof |
| 06/06/1990 | EP0371329A2 Titanium dioxide, process for its preparation and its use |
| 06/06/1990 | CN1042698A Low-temp. ceramic glazing dyestuff and its preparation method |
| 05/29/1990 | CA2003935A1 Titanium dioxide, a process for its production and its use |
| 05/29/1990 | CA2003932A1 Titanium dioxide, a process for its production and its use |
| 05/23/1990 | EP0369091A1 Method for manufacturing amorphous silica objects |
| 05/22/1990 | CA1269250A1 Method for preparing silica glass |
| 05/22/1990 | CA1269249A1 Melting raw materials for glass or the like using solid fuels or fuel-batch mixtures |
| 05/09/1990 | EP0367127A1 Synthetic silica glass article for dopant-diffusion process in semiconductors |
| 05/03/1990 | DE3836763A1 Process for reducing the nitrogen oxide content in the offgas from glass furnaces |
| 05/02/1990 | EP0366197A1 Method of manufacturing a monolithic silica aerogel |
| 04/25/1990 | CN1007725B Hight temp. ceramic-like outer wall coating |
| 04/24/1990 | US4920080 Including a silica source, sodium carbonate and a calcium source which is calcined separately |
| 04/24/1990 | US4919700 Vacuum refining of glassy materials with selected water content |
| 04/24/1990 | US4919699 Process of removing platinum inclusions from laser glass |
| 04/24/1990 | US4919697 Adding a volatile substance to increase foaming |
| 04/24/1990 | US4919342 Method of pretreating a sample for X-ray fluorescence analysis |
| 04/18/1990 | EP0363926A2 Particulate polycondensates, process for their preparation and use thereof |
| 04/18/1990 | EP0363697A1 Process for producing porous glass |
| 04/18/1990 | EP0190140B1 Process for the removal of impurities from optical component materials |
| 03/28/1990 | EP0360659A1 Synthetic fused silica glass and method for the preparation thereof |
| 03/28/1990 | EP0360479A2 Method of producing a glass body |
| 03/27/1990 | CA1267164A1 Microcrystalline transition metal oxide spinel articles |
| 03/21/1990 | CN1040570A Method of preparation of lead-free glazed enamel |
| 03/21/1990 | CN1040568A Method of making glass with preliminary reaction of batch materials |
| 03/14/1990 | CN1040357A Prodn. of color grit for marble |
| 03/08/1990 | DE3844003C1 Photochromic, silicate-containing foam glass (foamed glass, cellular glass) material or foamed-glass composite |