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| Number | Title | Issue Date |
| 7155934 | Method for the production of borosilicate glass with a surface suitable for modification glass obtained according to said method and the use thereof The method of making borosilicate glass with a surface having reactive SiOH groups on it includes preparing a borosilicate glass melt and dissolving at least 30 mMol per liter of water in the borosilicate glass melt. The borosilicate glass contains from 70 to 87 per... | 01/02/2007 |
| 6698245 | Production of vitreous fibres using high halogen mineral waste as an ingredient Rock fibres are made from a melt formed from a blend of low and high halogen waste materials. 80 to 98% are low halogen materials (containing less than 0.5 wt. % halogen) and 2 to 20% are high halogen materials (containing at least 1 wt. % halogen).... | 03/02/2004 |
| 6640589 | Glass base material drawing apparatus and method for drawing glass base material The glass base material drawing apparatus for heating and drawing a glass base material has a storage unit for storing the glass base material having an opening unit that is opened along the longitudinal direction of the storage unit when the glass base m... | 11/04/2003 |
| 6133177 | Process for removing organic impurities while melting mineral compositions A process for the preparation of molten mineral compositions wherein organic impurities are removed by reaction with oxygen introduced via the decomposition of calcium peroxide.... | 10/17/2000 |
| 6125660 | Method for manufacturing mineral fibres The invention relates to a process for the manufacture of, in particular, continuous mineral fibers from rock, glass-containing technical wastes, technical glass wastes, and to an apparatus. The object of the invention is to create a process which enables... | 10/03/2000 |
| 6067821 | Process for making mineral wool fibers from lumps of uncalcined raw bauxite A process for making mineral wool fibers having high-temperature stability consisting essentially of: (a) preparing a mixture containing basalt and a quantity of uncalcined raw bauxite sufficient to provide the resulting fibers with an alumina content of ... | 05/30/2000 |
| 6029477 | Systems and process for recycling glass fiber waste material into glass fiber product The present invention provides a system for producing glass fiber product from scrap glass fibers comprising at least one crusher having at least one pair of rotatable rollers which rotate at essentially the same speed, the rollers having intermeshing pro... | 02/29/2000 |
| 5928401 | Process of making fibers with a rotary ring furnace above a circular forehearth A process and apparatus are described for forming glass fibers which utilizes a rotating melter for the fiber glass batch materials and stators which house the fiber forming bushings. The stators are encompassed by the rotating melter, but not physically ... | 07/27/1999 |
| 5709728 | Method and device for the production of mineral wool by using mineral wool waste as recycled starting material The melting tub for producing the molten mass from a mixture of raw material is associated with an additional melting unit by means of which a recycled molten mass is obtained from mineral wool waste largely corresponding to the molten mass obtained from ... | 01/20/1998 |
| 5529594 | Method for producing mineral fibers having gaseous occlusions The mineral fiber forming apparatus having electrodes for heating heat softenable mineral material to form a molten mineral mass is disclosed. Organically-coated glass fiber scrap and cullet are supplied to the vessel providing the heat softenable mineral... | 06/25/1996 |
| 5420082 | Process of production of a glass intended to be transformed into continuous or staple fibers The invention provides a process which makes it possible to regulate the degree of oxidation-reduction of a glass during its production. According to the invention, which relates to glasses intended to be transformed into continuous or staple fibers conta... | 05/30/1995 |
| 5352260 | Manufacture of mineral fiber The initial stages in the manufacture of a glass-like mineral fiber suitable for a multiplicity of industrial uses are essentially conventional; a charge of raw minerals (igneous rock, basalt, slag from a blast furnace or other metal working furnace, phos... | 10/04/1994 |
| 5274896 | Destruction and re-use of mineral wool scrap A method of destructing mineral-wool scrap and reusing the scrap in the manufacture of mineral wool includes introducing the mineral-wool scrap in a finally divided state into a container causing the finely-divided mineral-wool scrap to pass through a hea... | 01/04/1994 |
| 5211733 | Method for producing a high-purity silica glass powder A method for producing a high-purity silica glass powder by calcining a high purity silica gel powder, wherein a vertical-type moving bed apparatus equipped with a heating means is used in a moving bed system such that the feed silica gel powder is contin... | 05/18/1993 |
| 5158588 | Method of drawing dissolved superconductor A preform for drawing superconductive wire is prepared by mixing fine particles of a superconducting material, containing barium, potassium, bismuth and oxygen, with a solvent, containing potassium hydroxide, in a tube. When the preform is heated and draw... | 10/27/1992 |
| 5019171 | Reclaiming inorganic reinforcement component from organic resin-containing scrap materials An inorganic reinforcement component, such as fiberglass, is reclaimed from a scrap material including a vaporizable organic resin, such as epoxy, by heating the scrap material in an elongated, rotary furnace to a temperature above the vaporization point ... | 05/28/1991 |
| 4822388 | Method of operating mineral wool cupolas and using spent electrolytic aluminum pot lining The operation of mineral wool cupolas is improved in several respects and a waste material is efficiently disposed of by using spent pot lining from electrolytic aluminum reduction vessels in the mineral wool cupolas as a partial or complete replacement f... | 04/18/1989 |
| 4812372 | Refractory metal substrate and coatings therefor A refractory metal substrate suitable for use in contact with an oxygen- or nitrogen-containing environment at a temperature greater than the oxidation or mitridation acceleration temperature of the substrate is disclosed. The refractory metal substrate c... | 03/14/1989 |
| 4617045 | Controlled process for making a chemically homogeneous melt for producing mineral wool insulation A process for making a homogeneous melt for producing mineral wool insulation. This insulating material is made from waste products namely, bottom ash, cement kiln dust, slag, and waste from mineral wool production. These materials, along with a binder, a... | 10/14/1986 |
| 4617041 | Method for continuously manufacturing elongated bodies starting from unmolten solid starting material A method for continuously melting a glass by means of a high-frequency electromagnetic field in a melting tube is provided. In this technique, the electromagnetic field is coupled in the melt by means of a coil present within a cooling jacket surrounding ... | 10/14/1986 |
| 4473273 | High bandwidth fiber and method of forming the same by preform rotation during drawing The data carrying capacity of an optical fiber drawn from a glass preform is enhanced and optimized by effecting refractive index changes by preform rotation during drawing.... | 09/25/1984 |
| 4462815 | Scrap glass recovery A method of removing coatings from glass fibers in which the fibers are introduced into a bed fluidized by a gas at elevated temperatures, the gas converting the coatings to substances which leave the bed with the gases.... | 07/31/1984 |
| 4452622 | Method of making highly reactive ion-leachable glass A method is provided for producing a highly reactive, ion-leachable glass for cement compositions. The method contemplates blending together a mixture of ion-leachable, inorganic compositions, forming the blended mixtures into shaped charges, heating the ... | 06/05/1984 |
| 4432780 | Glass fiber scrap reclamation A method of reclaiming chemically coated glass scrap is disclosed. The scrap is introduced into the oxidizing atmosphere of a hydrocarbon-fuel fired glass melting furnace. Some of the glass is melted with the unmelted portion being melted with the glass b... | 02/21/1984 |
| 4365984 | Mineral wool and process for producing same A process for producing mineral wool having a chemical composition comprised of between about 50 and 70 weight percent silica plus alumina, about 20 and 35 weight percent lime plug magnesia and about 5 and 15 weight percent iron oxides is described. The p... | 12/28/1982 |
| 4362543 | Method for controlling particulate emissions A process for the manufacture of glass is disclosed. Glass batch agglomerates are formed, fed to a vertical bed preheat hopper, dried and preheated with furnace exhaust gases, and then fed to a glass melting furnace. The spent exhaust gases are electrical... | 12/07/1982 |
| 4356019 | Glass spinning vessel In order to provide mixing between the freshly melted glass and that already in a glass melting vessel for spinning glass fibre, the vessel has a lateral extension having inlets for glass beads or pellets. These fall into a reception trough and the freshl... | 10/26/1982 |
| 4330316 | Method of preheating glass pellets A method of preheating glass batch pellets in which a controlled first stream of hot gases is employed to predry pellets and a second stream of hot gases is employed to preheat the pellets and in which the two streams are combined and withdrawn from the s... | 05/18/1982 |
| 4330313 | Preheat hopper agitators A pellet preheat hopper is disclosed, the hopper being equipped with agitator means proximately coincident with the upper operating pellet level to break up pellet encrustation.... | 05/18/1982 |
| 4328016 | Method and apparatus for drying glass batch pellets A process for preheating glass batch pellets is disclosed, the pellets being preheated by tumbling them into a heated gas stream and subsequently by contact of the pellets, in the form of a moving bed, with hot gases from the furnace in which the preheate... | 05/04/1982 |
| 4325724 | Method for making glass An improved method of preparing a molten glass composition is presented. The constituents of the molten glass composition are classified into two or more melting groups according to mutual melting properties or characteristics such as volatility, corrosiv... | 04/20/1982 |
| 4233051 | Method for producing calcium borates A method of precipitating calcium borates from an aqueous mixture of calcium chloride and borax is disclosed. The yield of calcium borate precipitates can be increased by increasing the concentration of borax. Preferably, an increase in the calcium concen... | 11/11/1980 |
| 4199336 | Method for making basalt glass ceramic fibers Fine-grained, polycrystalline, basalt-type glass-ceramic fibers, having a crystal content of at least 35% and particular application as fiber reinforcement in concrete structures, are disclosed. A method of production comprises treating a vitreous fiber i... | 04/22/1980 |
| 4153439 | Method for the production of mineral wool, especially for use in basic milieu A method of producing alkali-resistant mineral wool. The starting material is melted and formed into fibers and the fibers are cooled and collected. The raw material has the following composition: The raw material preferably includes olivine.... | 05/08/1979 |
| 4149866 | Method for forming basalt fibers with improved tensile strength A method of improving the tensile strength of drawn fibers produced from molten basalt rock. Strength is increased by reducing the ferric iron content of the final fibers below that which would be present in the fibers if drawn under normal atmospheric an... | 04/17/1979 |
| 4146375 | Method for the continuous production of glass fiber strand Method and apparatus for forming glass fiber strand directly and continuously from raw batch glass-forming material, which includes means for continuously electrically melting raw batch, glass-forming materials, forehearth and fiber forming means for cont... | 03/27/1979 |
| 4090882 | Glassy calcium silicate fibers made from phosphorus slag In a building material comprising an inorganic binder selected from the group consisting of Portland cement, alumina cement, calcium silicate, lime and gypsum, structurally reinforced with glass fibers, the improvement which comprises employing as said gl... | 05/23/1978 |
| 4054434 | Production of glass fibres The disclosed invention pertains to a process for melting glass in which scrap glass fibers containing carbonaceous material to provide a carbon content of 0.4%-0.04% in a batch is combined with batch materials in which the scrap amounts to 5%-25% by the ... | 10/18/1977 |
| 4029495 | Process for recovering a heavy metal catalyst component from a spent catalyst A supported catalyst contaminated with organic impurities or a mixture of such a catalyst and a flux is introduced into a rotary furnace, rocking furnace or gradient furnace and agitated and heated therein until sintered or transformed into a semi-melted ... | 06/14/1977 |
| 4018964 | Method for preparing glassy fiber having protuberances studded on the surface useful for reinforcement and resulting product This invention relates to a method for preparing glassy fibers having protuberances studded on the surface of the fiber, characterized in that each protuberance comprises an unmelted component of the starting materials and is formed on the surface of the ... | 04/19/1977 |
