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| Number | Title | Issue Date |
| 8076255 | Castable refractory To provide a long-life refractory capable of maintaining durability under severe conditions. The castable refractory comprises a mixture containing at least one of 2 to 10 mass % of silicon carbide and 3 to 10 mass % of chamotte, as an auxiliary raw material, and a ... | 12/13/2011 |
| 7338925 | Zeolite compositions having enhanced compressive strength Wellbore treating fluids that include zeolite, an activator, and an organic acid or salt thereof are provided. ... | 03/04/2008 |
| 7332026 | Cementitious compositions containing interground cement clinker and zeolite Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum. ... | 02/19/2008 |
| 7326291 | Cementitious compositions containing interground cement clinker and zeolite Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum. ... | 02/05/2008 |
| 7309674 | Refractory composition and process for the repair of a hot refractory wall The present invention relates to refractory composition consisting essentially of 40-90 dry weight % of amorphous silica aggregates, up to 40 dry weight % of alumina based compounds 10-15 dry weight % of clay, 0.2-2.0 dry weight % of a chemical binder and further co... | 12/18/2007 |
| 7303015 | Cementitious compositions containing interground cement clinker and zeolite Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum. ... | 12/04/2007 |
| 7285166 | Zeolite-containing cement composition Methods and cement compositions are provided for sealing a subterranean zone penetrated by a wellbore, wherein the cement composition comprises zeolite, cementitious material, and a mixing fluid. ... | 10/23/2007 |
| 7285164 | Fluid loss additives for cement slurries Methods for cementing in a subterranean zone, which use a cement composition that includes zeolite, cementitious material, proportioned fluid loss control additives and a mixing fluid. Cement compositions containing proportioned fluid loss control additives, and met... | 10/23/2007 |
| 7228905 | Zeolite compositions having enhanced compressive strength Methods for performing wellbore operations using a treating fluid that includes zeolite, an activator, and an organic acid or salt thereof. The treating fluid used in the methods includes a zeolite having a mean particle size that is less than or equal to 100 micron... | 06/12/2007 |
| 7219733 | Zeolite compositions for lowering maximum cementing temperature Zeolite compositions having a low maximum setting temperature for use in permafrost and waterwell applications are provided. ... | 05/22/2007 |
| 7208324 | Liquid composition for forming ferroelectric thin film and process for producing ferroelectric thin film It is an object to provide a liquid composition for forming a thin film, with which a ferroelectric thin film having excellent characteristics can be prepared even by baking at a low temperature, and a process for producing a ferroelectric thin film using it. The ab... | 04/24/2007 |
| 7182137 | Cementitious compositions containing interground cement clinker and zeolite Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum. ... | 02/27/2007 |
| 7179776 | Ceramic dishwashing composition for inhibiting corrosion of glassware A ceramic composition is provided to protect glassware from corrosion in a dishwasher. The ceramic composition contains at least one compound which releases an active agent during washing and/or rinsing cycles of a dishwasher to protect glassware from corrosion.... | 02/20/2007 |
| 7166551 | Monothilic refractory composition A subject for the invention is to provide an unshaped refractory composition having not only high thermal resistance but also improved corrosion resistance and improved unsusceptibility to slag infiltration. The invention is “an unshaped refractory composit... | 01/23/2007 |
| 7141220 | Open system sulphurous acid generator This invention presents a sulphurous acid generator which employs a combination of novel blending, contact and mixing mechanisms which maximize the efficiency and duration of contact between sulphur dioxide gas and water to form sulphurous acid in an open nonpressur... | 11/28/2006 |
| 7120978 | Process of manufacturing a piezoelectric element A method of manufacturing a piezoelectric element structure having a supporting substrate and a piezoelectric film supported on the supporting substrate. A first layer, and a second layer having zirconium, each provided with a perovskite structure, are formed in tha... | 10/17/2006 |
| 7074733 | Unwrought refractory composition, in particular for producing glass furnace hearths An unwrought refractory composition, in particular for producing glass furnace hearths, includes a base mixture comprising in wt. %: 1 to 6% of a hydraulic cement, and 94 to 99% of particles of at least a refractory material mainly consisting of alumina (Al2 | 07/11/2006 |
| 7025824 | Ceramic material and process for manufacturing A chemically bonded ceramic material based on calcium aluminate hydrate with additives of primarily calcium titanate, but also chemically similar compounds. The material is a biocompatible material for implants, particularly for orthopaedic and dental applications. ... | 04/11/2006 |
| 6995105 | Use of water-soluble mixed polymers as a flowing medium and/or as a hardening retarder for refractory materials which contain aluminate cement The use of a three-component water-soluble polymer comprising 5–90% by weight of a component a), preferably of the maleic acid, fumaric acid or itaconic acid type, 5–90% by weight of a component b) essentially from the group consisting of 2-acrylamido-2-methylpr... | 02/07/2006 |
| 6686305 | Methods of making low thermal expansion calcium aluminate articles Methods of making ceramic bodies are disclosed. The methods include manufacturing calcium aluminate material having a low coefficient of thermal expansion.... | 02/03/2004 |
| 6667262 | Self-lubricating ceramic composites The invention comprises a self-lubricating ceramic composite characterized as having a low porosity derived from a mixture of at least one ceramic powder preferably selected from the group consisting of silicon nitride, silicon carbide, zirconia, alumina,... | 12/23/2003 |
| 6458732 | Lightweight dry refractory A dry refractory composition having superior insulating value. The dry refractory composition also may have excellent resistance to molten metals and slags. The composition includes filler lightweight material, which may be selected from perlite, vermicul... | 10/01/2002 |
| 6287999 | Castable refractory compositions The invention relates to a method of producing refractory compositions and more particularly to a method for producing castable refractory compositions which comprises combining appropriate quantities of bulk particulate refractory aggregates substantiall... | 09/11/2001 |
| 6274525 | Process for making a high temperature-resistant ceramic material with an adjustable thermal expansion coefficient and method of use of same The process for making the high temperature-resistant ceramic material from the MgO--Al2 O3 system includes burning a mixture containing a predetermined amount of magnesium oxide (MgO) of a predetermined grain size distribution in an... | 08/14/2001 |
| 6022593 | Process for applying low-cement castable refractory material A method for placing a thixotropic low-cement castable refractory material without the necessity for forms. A low-cement castable material is mixed with a measured amount of water, then is pumped hydraulically through a hose to a nozzle assembly. Compress... | 02/08/2000 |
| 5976718 | Process for producing a mainly inorganic foam, and thus produced mass or moulded part A premix composition for producing an inorganic solid foamed mass by mixing component (A) an aqueous acidic phosphate solution of mainly polyvalent cations and phosphoric acid wherein between 0.8 and 1.75 protons of the phosphoric acid molecule of said ph... | 11/02/1999 |
| 5954872 | Dry phosphate refractory concrete materials The present invention is directed to a dry phosphate cement mixture and process for manufacture of same. The dry mixture includes at least Al(H2 PO4)3, a group IIA metal bonded to oxygen, and an aggregate. The process for ... | 09/21/1999 |
| 5932506 | Alumina-silicon carbide-carbon refractory castable containing magnesium aluminate spinel A refractory castable comprised of: about 45% to about 75% by weight high alumina grain; about 2% to about 35% by weight silicon carbide; about 1% to about 8% by weight carbon; about 1% to about 8% by weight calcium aluminate cement; and about 1% to about 10% by weight ... | 08/03/1999 |
| 5783510 | Monolithic refractory composition wall A monolithic refractory composition, which can be rapidly dried after being mixed with water and applied to a desired portion by casting or spraying to form a furnace wall, and which comprises refractory aggregates, a refractory powder, an aluminum alloy ... | 07/21/1998 |
| 5753572 | Castable and gunning composition with improved resistance to build-up and alkali infiltration Mixes suitable for casting or gunning containing a heat-resistant aggregate blend containing at least about 50 wt. % high alumina grain, silicon carbide, and zircon sand, and to the method of utilizing the same to form alkali-resistant linings in high tem... | 05/19/1998 |
| 5681786 | Castable refractory rich with alumina coarse grains A castable refractory which comprises a matrix, making up 100 wt % in total, composed of 3-20 wt % of magnesia clinker having a particle diameter smaller than 0.21 mm and containing more than 95 wt % of MgO and 0.5-3.0 wt % of alumina cement in terms of C... | 10/28/1997 |
| 5681785 | Castable refractory containing alumina coarse grains A castable refractory which comprises a matrix, making up 100 wt % in total, composed of 3-20 wt % of magnesia clinker having a particle diameter smaller than 0.21 mm and containing more than 95 wt % of MgO and 0.5-3.0 wt % of alumina cement in terms of C... | 10/28/1997 |
| 5650121 | Coated expendable refractory lining having improved resistance to erosive and corrosive materials The disclosed invention provides a method of forming refractory linings for maintaining refractory linings against attack by corrosive materials such as those present in steel manufacture. The method entails spraying an aqueous mixture of a refractory com... | 07/22/1997 |
| 5641348 | Exhaust conduit coating A mixture producing a slurry for coating metallic vehicle exhaust conduits utilizing a refractory cement and a caustic or alkaline salt binder. Sufficient amounts of water are also employed in the slurry resulting in a flowable material. The slurry flows ... | 06/24/1997 |
| 5603759 | Stable, cement-bonded, overhead sprayed insulating mixes and resultant linings A pulverulent mix, sprayable when mixed with a liquid for forming a stable, cement-bonded insulating refractory which can be sprayed onto vertical and overhead surfaces without deformation, comprising a lightweight and/or dense refractory aggregate, a cal... | 02/18/1997 |
| 5582695 | Structural parts for electrolytic reduction cells for aluminum The structural part is used in an electolytic cell for production of aluminum and comes into contact with the gas atmosphere in the electrolytic reduction cell. The structural part is made completely from, or is a metal part which is coated with, a concre... | 12/10/1996 |
| 5578538 | Castable refractory material The castable refractory material comprising as binders, per 100 parts by weight of solid components, (a) 10-30 parts by weight of water-inactive, fine refractory powder, which is a mixture of fine refractory powder having an average diameter of 0.2-0.6 μ... | 11/26/1996 |
| 5549745 | Non-slumping, pumpable castable and method of applying the same An essentially non-slumping, high density, low moisture and low cement castable composition, consisting of a tempered, pumpable first component containing the castable solids and consisting essentially of a refractory aggregate, a calcium-aluminate cement... | 08/27/1996 |
| 5512523 | Monolithic refractory powder mixture A monolithic refractory powder mixture containing from 2 to 3 wt % of spheroidized refractory particles having a mean particle size of at most 30 μm of at least one member selected from the group consisting of alumina cement, alumina, titania, bauxite, d... | 04/30/1996 |
| 5453262 | Continuous process for production of ceramic powders with controlled morphology A continuous process for making a crystalline ceramic powder having a perovskite structure, ABO3, comprising: a. preparing a first acidic aqueous solution containing one or more elements that are insoluble precursor elements capable of forming the ... | 09/26/1995 |
