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| Number | Title | Issue Date |
| 7351388 | Pyrogenically produced silicon dioxide powder Pyrogenically produced silicon dioxide powder in the form of aggregates of primary particles having a BET surface area of 300±25 m2/g, wherein the aggregates display an average surface area of 4800 to 6000 nm2, an average equivalent circle dia... | 04/01/2008 |
| 7037451 | Chemical-mechanical planarization slurries and powders and methods for using same Chemical-mechanical planarization slurries and methods for using the slurries wherein the slurry includes abrasive particles. The abrasive particles have a small particle size, narrow size distribution and a spherical morphology and the particles are substantially u... | 05/02/2006 |
| 6991773 | Boron-oxide and related compounds for hydrogen storage A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit ... | 01/31/2006 |
| 6992042 | Doped titanium oxides Pyrogenically prepared titanium dioxide doped by means of an aerosol contains an oxide from the group zinc oxide, platinum oxide, magnesium oxide and/or aluminium oxide as the doping component. It is prepared as follows: in the pyrogenic preparation of titanium diox... | 01/31/2006 |
| 6872402 | Bactericidal silicon dioxide doped with silver Pyrogenically prepared silica doped with silver or silver oxide is prepared by feeding an aerosol into a flame such as is used for the preparation of pyrogenic silica, mixing the aerosol homogeneously with gas mixture before the reaction, then allowing the aerosol/g... | 03/29/2005 |
| 6800265 | Method for treating a gas containing a boric acid component A method for treating a gas, which comprises contacting a gas containing a boric acid component in an amount of at least 15 mg/m3 as converted into B2O3 concentration in a standard state, with a solid alkali metal carbonate material ... | 10/05/2004 |
| 6780913 | Zinc borate, and production method and use thereof A zinc borate having a particular crystallite size and containing very little sodium components and a method of preparing the same. The zinc borate has a particular chemical composition, has a crystallite size of not smaller than 40 nm as found from diffraction peak... | 08/24/2004 |
| 6613300 | Doped, pyrogenically prepared oxides Doped, pyrogenically prepared oxides of metals and/or non-metals which are doped with one or more doping components in an amount of 0.00001 to 20 wt. %. The doping component may be a metal and/or non-metal or an oxide and/or a salt of a metal and/or a non... | 09/02/2003 |
| 6426083 | Aqueous borate-containing compositions and their preparation The invention relates to aqueous boron-containing compositions and their preparation. In particular the invention provides self-structured aqueous sodium pentaborate gels. The gels according to the invention may be prepared by reacting boric acid or boric... | 07/30/2002 |
| 6328944 | Doped, pyrogenically prepared oxides Doped, pyrogenically prepared oxides of metals and/or non-metals which are doped with one or more doping components in an amount of 0.00001 to 20 wt. %. The doping component may be a metal and/or non-metal or an oxide and/or a salt of a metal and/or a non... | 12/11/2001 |
| 6242373 | Boron oxide-silicon dioxide mixed oxide A boron oxide-silicon dioxide mixed oxide which has a BET surface of less than 100 m2 g, and optionally containing oxides of aluminium, titanium or zirconium, is prepared pyrogenically by flame hydrolysis. The mixed oxide is used in glass makin... | 06/05/2001 |
| 6143264 | Boron compounds Process for the preparation of undecahydrododecaborate anions [B12 H.sub.(12-n) (XCN)n ]2- or [B12 H11 XH]2- or a nonahydrodecaborate anions [B10 H.sub.(12-n) (XCN)n ] | 11/07/2000 |
| 5876686 | Process for making inorganic oxide gels in fluorocarbon solvents This invention relates to a process for the preparation of an inorganic oxide gel comprising contacting at least one fluorinated inorganic oxide precursor with a fluorinated gelling agent in the presence of at least one fluorinated solvent to form a solut... | 03/02/1999 |
| 5858079 | Strontium borate pigment composition, method of making same, and processes of imparting anti-corrosive, anti-bacterial/anti-fungal and non-flammable properties to materials by using same The present invention provides a strontium borate pigment composition comprising particles of a strontium borate represented by the general formula (1): SrO. O3.γH.sub.2 O (1) (wherein O | 01/12/1999 |
| 5651949 | Production of boric oxide Amorphous boric oxide-containing product having about 80 to 90% B2 O3 is produced by heating boric acid to an elevated temperature of about 180° to 220° C. to dehydrate the boric acid and form a molten glass which is cooled to a so... | 07/29/1997 |
| 5461021 | Metal borate composition A novel composition comprises aluminum borate and zirconium borate. Preferably, the composition is prepared by coprecipitation. The composition is useful as a sorbent or as a catalyst material.... | 10/24/1995 |
| 5456735 | Method of abrading with boron suboxide (BxO) and the boron suboxide (BxO) articles and composition used A method of removing material from a surface comprising abrading a surface comprising the step of abrading a surface with an abrasive tool or an abrasive powder comprising a boron suboxide (BxO) composition, wherein during the abrading step the boron subo... | 10/10/1995 |
| 5424052 | Production of boric oxide Amorphous boric oxide-containing product having about 85 to 92% B2 O3 is produced by heating boric acid at an elevated temperature of up to about 275° C. to dehydrate the boric acid and form a molten glass which is cooled to a solid... | 06/13/1995 |
| 5391364 | Inorganic oxide aerogel microbeads of narrow pore diameter distribution and the method for their preparation Microbeads of aerogels of one or more oxides are characterised by a high porosity and the fact that at least 90% of the pores present have a diameter lying within a very narrow range. The surface area exceeds 300 m2 /g and more frequently excee... | 02/21/1995 |
| 5343827 | Method for crystal growth of beta barium boratean A method of growing optical quality beta barium borate; crystals from a pure NaCl fluxed melt. The method comprises maintaining particular thermal field conditions throughout the melt and slowly cooling the melt to cause beta barium borate to crystallize ... | 09/06/1994 |
| 5330937 | Boron suboxide material and method for its preparation A superhard form of boron suboxide comprises at least about 95% by weight B6 O and has a KNH100 value of at least about 3800 kg/mm2. In a preferred embodiment, the boron suboxide has an average grain size of about 0.1-40 m... | 07/19/1994 |
| 5235117 | Process for the preparation of boric oxide by hydrolysis of methyl borate and its use in the oxidation of alcohol-saturated hydrocarbons For preparing at least one boric oxide in an anhydrous or hydrated form and of general formula B2 O3, xH2 O, in which x is a number from 0 to 3, a methyl borate hydrolyzate comprising boric oxide and methanol is introduced... | 08/10/1993 |
| 5183785 | Aluminum borate ceramics and process for producing same The present invention provides an aluminum borate ceramic having a high porosity and a tightly controlled pore size distribution, while maintaining good mechanical strength. The ceramic body can be formed by decomposing boric acid-stabilized aluminum acet... | 02/02/1993 |
| 5135892 | Boron suboxide material and method for its preparation A superhard form of boron suboxide (Bx O) comprises at least about 95% by weight of polycrystalline B6 O and has a KHN100 value of at least about 3800 kg/mm2. A method for forming the superhard boron suboxide co... | 08/04/1992 |
| 5055280 | Process for producing transition metal boride fibers A process for producing fibers of a transition metal boride, which comprises reacting a mixture of a vapor of an evaporable boron compound an a vapor of an evaporable transition metal compound in the presence of a catalyst composed of at least one metal s... | 10/08/1991 |
| 5054683 | Method of bonding together two bodies with silicon oxide and practically pure boron A method is set forth of bonding together two bodies (1, 2), according to which a first body (1) is provided with a flat surface (5) and the second body (2) is provided with a silicon oxide layer (4) with a flat surface (6), after which a connecting layer... | 10/08/1991 |
| 5049371 | Process for the preparation of monodisperse ceramic powders A novel process is described for the preparation of monodisperse ceramic ders wherein particulate oxides or hydroxides are obtained by reaction of hydrolysable compounds with water. The reaction is carried out in the presence of a complexing agent and, o... | 09/17/1991 |
| 5034206 | Aluminum borate fibers Disclosed is a method of making aluminum borate fibers comprising the steps of preparing an aluminum borate gel by reacting aluminum salt in a solution with ammonium borate and heating the gel to form the aluminum borate fibers.... | 07/23/1991 |
| 4908196 | Boric oxide preparation method High-purity boric oxide which does not adhere to the reactor walls is obtained by: (a) gradually heat in boric acid, with the absence or substantial absence of fusion phenomena, at increasing temperature to a value not exceeding about 150° C.; operating ... | 03/13/1990 |
| 4808397 | Process for preparing fine particles of metal oxides A process for preparing spheroid particles of oxide compounds, having an average diameter of smaller than 3 microns. An emulsion is prepared of a hydrolyzable liquid oxide compound in a perfluoropolyether, the emulsion is reacted with water, water vapor o... | 02/28/1989 |
| 4795677 | Oxidation-inhibited carbon-carbon composites Carbon-carbon composites consisting of graphite fibers reinforcing a carbon matrix are protected from oxidation by a B2 O3 glass coating which includes a refractory oxide to stabilize the viscosity of the glass. Precursors of B2... | 01/03/1989 |
| 4789422 | Aluminum borate fibers Disclosed is a method of making aluminum borate fibers comprising the steps of preparing an aluminum borate gel by reacting aluminum salt in a solution with ammonium borate and heating the gel to form the aluminum borate fibers.... | 12/06/1988 |
| 4756745 | Process to benefit colemanite and/or howlite minerals An improved process to benefit colemanite and/or howlite minerals comprising the stages of: treating mineral with sulfuric acid in order to dissolve boron compounds; separating the solution formed from the solids in suspension; reacting said solution with... | 07/12/1988 |
| 4649037 | Spray-dried inorganic oxides from non-aqueous gels or solutions Inorganic metal oxides having high surface area and pore volume are prepared by spray drying. The admixture which is spray dried to yield the metal oxides is produced from reactants comprising at least one hydrolyzable metal compound, a sufficient amount ... | 03/10/1987 |
| 4612174 | Method of removing noxious substances from gases Waste gases and other noxious substances which are formed in connection with chemical processes and the manufacture of devices such as semiconductors and covalent hydrides and element organic compounds, etc. are treated so as to remove the noxious compone... | 09/16/1986 |
| 4563341 | Method and means for converting graphite to diamond A host liquid, such as a liquid metal, which is "seeded" with small bubbles of an inert gas, is maintained in a sealed chamber at an ambient temperature of about 100° K. above the melting point of the host liquid, and at a static pressure ranging from 1 ... | 01/07/1986 |
| 4548798 | Laser synthesis of refractory oxide powders The present invention relates to a method for the production of refractory oxide powders by pyrolyzing with laser energy a metal- and oxygen-containing organic chemical species characterized by the following properties: (a) some or all of the organic frag... | 10/22/1985 |
| 4540512 | Recovery of boric acid from nuclear waste Disclosed is a process for separating and recovering boric acid from water containing solids which include boric acid and radionuclides. In the first step, the water is separated from the solids by evaporation of the water at a temperature under 130° F. ... | 09/10/1985 |
| 4490344 | Production process of silicon tetrachloride Silicon tetrachloride is effectively and efficiently produced at a relatively low temperature and at a high yield by (1) feeding a mixture of a silicon dioxide containing substance and carbon to the top of a reactor in which a reaction mixture forms a dow... | 12/25/1984 |
| 4414187 | Preparation of metal phosphates by a reaction using boron phosphate Metallic phosphates are prepared by heating mixtures of BPO4 and a metallic oxide or salt.... | 11/08/1983 |
