Class / Patent application number | Description | Number of patent applications / Date published |
051308000 | Clay, silica, or silicate | 63 |
20080202037 | AUTO-STOPPING SLURRIES FOR CHEMICAL-MECHANICAL POLISHING OF TOPOGRAPHIC DIELECTRIC SILICON DIOXIDE - The present invention provides auto-stopping CMP slurry compositions that minimize post-CMP non-uniformity and also extend the time that polishing can be continued beyond the end point without the risk of over-polishing the dielectric silicon dioxide film. Auto-stopping CMP slurry compositions according to the invention include ceria abrasive particles and an effective amount of a polyalkylamine such as polyethyleneimine dispersed in water. The methods of the invention include polishing a topographic dielectric silicon dioxide film layer using the auto-stopping CMP slurry compositions to obtain a dielectric silicon dioxide surface having a desired predetermined minimum step height. | 08-28-2008 |
20080222967 | BONDED ABRASIVE ARTICLE AND METHOD OF MAKING - A bonded abrasive article is provided that includes abrasive grains within a bond matrix, the abrasive grains including cubic boron nitride (cBN) and the bond matrix including a polycrystalline ceramic phase. The bonded abrasive may have a Modulus of Rupture (MOR) of not less than about 40 MPa. Certain embodiments may have porosity, such as greater than about 5.0 vol %. | 09-18-2008 |
20080263965 | Semiconductor Polishing Composition - A semiconductor polishing composition is disclosed. The semiconductor polishing composition includes fumed silica. The semiconductor polishing composition is an aqueous dispersion solution of fumed silica. Further, an increase rate of average particle diameter of fumed silica after a shake test for 10 days is 10% or less. | 10-30-2008 |
20080289261 | POLISHING COMPOSITION AND POLISHING METHOD - To provide a polishing composition which is suitable particularly for an application to polish a wafer containing tungsten, and a polishing process employing such a polishing composition. | 11-27-2008 |
20090235591 | FIXED ABRASIVE ARTICLES UTILIZING COATED ABRASIVE PARTICLES - An fixed abrasive article is provided which includes a matrix material and abrasive particles embedded within the matrix material. The abrasive particles have a core-shell structure that includes a polycrystalline alpha alumina core and a shell layer overlying the polycrystalline alpha alumina core. The shell layer includes a material selected from the group consisting of silicon oxide and zirconium oxide. Also the polycrystalline alpha alumina core includes grains and having an average grain size of not greater than about 500 nm. | 09-24-2009 |
20090313907 | Ultrahard Composites - The present invention concerns an ultrahard composite material comprising ultrahard particles dispersed in a nano-grain sized matrix material, wherein the average grain size of the matrix material, or at least one component of the matrix material, is within 30 nm of the Hall-Petch departure grain size for the matrix material or at least one component thereof. The ultrahard particles in the composite are cubic boron nitride and/or diamond, and the matrix materials are of a controlled and chosen phase and nano-grain size. Ultrahard composites with cubic boron nitride and diamond in nano-matrices of titanium nitride, zirconia, alumina, silica and chromium nitride are provided. | 12-24-2009 |
20100037531 | ABRASIVE COMPOSITION AND ARTICLE FORMED THEREFROM - An abrasive composition including vitreous binding material; abrasive material; and a dimensional stabilizing additive (DSA), present in an amount that is from about 1 to about 40 volume percent of the abrasive composition, wherein the dimensionally stabilizing additive is inert to the binding material, and has a Mohs hardness of between 4 and 9, and wherein the abrasive composition does not include hollow sphere fillers. Also included is a method of making an abrasive articles, articles formed thereby; and articles formed from the abrasive compositions. | 02-18-2010 |
20100064594 | ABRASIVE GRAINS HAVING UNIQUE FEATURES - An uncoated abrasive or superabrasive grain having at least one grain face including three or more features projecting from the grain face wherein the height (h) and the lateral length (l) of each feature is greater than about 0.1 micron. | 03-18-2010 |
20100071272 | COLLOIDAL SILICA, AND METHOD FOR PRODUCTION THEREOF - The present invention provides dense silica particles with reduced metal impurities. Specifically, the present invention provides a colloidal silica produced by using an alkyl silicate as a starting material, wherein, with respect to a sample prepared by adding, as an internal standard, 1 wt. % of polydimethylsilane to a dried product of the colloidal silica, a peak area value calculated using a formula of a colloidal silica peak area/a polydimethylsilane peak area is 15 or less, the peak areas being determined by an obtained solid-state | 03-25-2010 |
20100083584 | DISPERSION COMPRISING CERIUM OXIDE AND SHEET SILICATE - A dispersion comprising cerium oxide particles and particles of one or more sheet silicates, where the zeta potential of the sheet silicate particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, the mean particle diameter of the cerium oxide particles and the mean particle diameter of the sheet silicate particles is not more than 100 nm and the pH of the dispersion is from 7.5 to 10.5, preferably from 9 to 10. | 04-08-2010 |
20100192474 | ULTRAHARD STISHOVITE NANOPARTICLES AND METHODS OF MANUFACTURE - Compositions comprising nanoparticles (e.g., nanocrystals) of stishovite silica are described. Such nanoparticles may be made by (1) subjecting a mesoporous silica starting material (e.g., SBA-16 or KIT-6) to a pressure of less than about 20 GPa (e.g., about 12 GPa); (2) heating the mesoporous silica starting material while under pressure to an elevated temperature of less than about 1000° C. (e.g., a temperature of between about 300° C. and about 400° C.); and thereafter isolating the nanoparticles. The nanoparticles may be used in a work tool that is configured and adapted for cutting, drilling, abrading, polishing, machining, or grinding, among other uses. | 08-05-2010 |
20100307068 | DISPERSION COMPRISING CERIUM OXIDE AND COLLOIDAL SILICON DIOXIDE - A dispersion comprising particles of cerium oxide and particles of cerium oxide and colloidal silicon dioxide, where —the zeta potential of the silicon dioxide particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, —the mean diameter of the cerium oxide particles is not more than 200 nm silicon dioxide particles is less than 100 nm, —the proportion, based in each case on the total amount of the dispersion, of cerium oxide particles is from 0.1 to 5% by weight silicon dioxide particles is from 0.01 to 10% by weight and —the pH of the dispersion is from 3.5 to <7.5. | 12-09-2010 |
20110083374 | BONDED ABRASIVE ARTICLE AND METHOD OF FORMING - An abrasive article having an abrasive body including abrasive grains contained within a bond material, wherein the abrasive grains comprise microcrystalline alumina, and wherein the bond material includes less than about 1.0 mol % phosphorous oxide (P | 04-14-2011 |
20110131888 | BONDED ABRASIVE ARTICLE AND METHOD OF FORMING - An abrasive article includes an abrasive body having abrasive grains within a bond material, the abrasive body further including a spinel material disposed at an interface between the abrasive grains and the bond matrix. | 06-09-2011 |
20110131889 | BONDED ABRASIVE ARTICLE AND METHOD OF FORMING - An abrasive article including an abrasive body having abrasive grains made of microcrystalline alumina contained within a bond material, wherein the bond material comprises a total content of alumina of at least about 15 mol %. | 06-09-2011 |
20110209413 | Non-Spherical Silica Sol, Process for Producing the Same, and Composition for Polishing - Provided is a non-spherical silica sol containing non-spherical silica fine particles dispersed in a dispersion medium, the non-spherical silica fine particles having an average particle diameter in a range of 3 to 150 nm as measured by dynamic light scattering, a minor-diameter/major-diameter ratio in a range of 0.01 to 0.8, and a specific surface area in a range of 10 to 800 m | 09-01-2011 |
20110219703 | COATED SOLID PARTICLES - The invention relates to a method for treating the surfaces of solid particles to improve the processability of the solid particles in the electrostatic field and to reduce the dust formation which occurs during the processing of the solid particles. | 09-15-2011 |
20110302849 | PRODUCTION OF HIGH-PURITY SUSPENSIONS CONTAINING PRECIPITATED SILICAS BY ELECTRODIALYSIS - The present invention relates to suspensions which have a very low salt content and contain at least one precipitated silica, a process for producing them and also their use. | 12-15-2011 |
20110314745 | Nodular silica sol and method of producing the same - A nodular silica sol has a ratio of an average particle diameter (r) measured by the dynamic light scattering method versus a particle diameter (r′) converted to that of an equivalent sphere computed from an average specific surface area measured by means of the nitrogen absorption method (r/r′, referred to as “association ratio”) in a range from 1.2 to 10, the particle diameter (r′) in a range from 5 to 200 nm, and the specific surface area in a range from 13 to 550 m | 12-29-2011 |
20120042575 | CMP SLURRY RECYCLING SYSTEM AND METHODS - The present invention provides a system and method for recycling an abrasive chemical mechanical polishing (CMP) slurry after polishing substrates therewith. The method comprises circulating the recovered CMP slurry from a blending tank through an ultrafiltration unit and back into the, the ultrafiltration unit removing a predetermined amount of water from recovered slurry to form a slurry concentrate; optionally adjusting the pH of the concentrate to a predetermined target level; and optionally adding selected additive chemical components and/or water to the concentrate in amounts sufficient to form a reconstituted CMP slurry that is suitable for use in a CMP process. | 02-23-2012 |
20120096774 | ABRASIVE COATING AND METHOD OF MANUFACTURING SAME - The present invention relates to an abrasive product and to a method of manufacturing same. Such an abrasive product comprises a structured abrasive coating provided on an upper side ( | 04-26-2012 |
20120117889 | METHOD OF FORMING SILICATE POLISHING PAD - The method provides a method of preparing a silicate-containing polishing pad useful for polishing at least one of semiconductor, magnetic and optical substrates. The method includes introducing a feed stream of gas-filled polymeric microelements into a gas jet. The polymeric microelements have varied densities, varied wall thickness and varied particle size. Passing the gas-filled microelements in the gas jet adjacent a Coanda block, the Coanda block having a curved wall for separates the polymeric microelements with Coanda effect, inertia and gas flow resistance. The coarse polymeric microelements from the curved wall of the Coanda block to clean the polymeric microelements. The polymeric microelements collected contain less than 0.1 weight percent total of the polymeric microelements being associated with i) silicate particles having a particle size of greater than 5 μm; ii) silicate-containing regions covering greater than 50 percent of the outer surface of the polymeric microelements; and iii) polymeric microelements agglomerated with silicate particles to an average cluster size of greater than 120 μm. Inserting the cleaned polymeric microelements into a polymeric matrix forms the polishing pad. | 05-17-2012 |
20120167481 | ABRASIVE PARTICLES HAVING PARTICULAR SHAPES AND METHODS OF FORMING SUCH PARTICLES - An abrasive article includes a shaped abrasive particle including a body having a first height (h | 07-05-2012 |
20120180401 | POLYCRYSTALLINE ABRASIVE COMPACTS - A method of manufacturing polycrystalline abrasive elements consisting of micron, sub-micron or nano-sized ultrahard abrasives dispersed in micron, sub-micron or nano-sized matrix materials. A plurality of ultrahard abrasive particles having vitreophilic surfaces are coated with a matrix precursor material in a refined colloidal process and then treated to render them suitable for sintering. The matrix precursor material can be converted to an oxide, nitride, carbide, oxynitride, oxycarbide, or carbonitride, or an elemental form thereof. The coated ultrahard abrasive particles are consolidated and sintered at a pressure and temperature at which they are crystallographically or thermodynamically stable. | 07-19-2012 |
20120186161 | MOLTEN GRAINS OF ALUMINA-ZIRCONIA - The invention relates to a fused grit having the following chemical analysis, in wt %: ZrO | 07-26-2012 |
20120233929 | METHOD OF INHIBITING WATER ADSORPTION OF POWDER BY ADDITION OF HYDROPHOBIC NANAOPARTICLES - Presently described are methods of inhibiting water vapor adsorption of a powder and methods of storing a powder at increased humidity level. The methods comprise providing adding discrete hydrophobic nanoparticles to a plurality of particles. | 09-20-2012 |
20120247027 | ABRASIVE ARTICLE FOR HIGH-SPEED GRINDING OPERATIONS - An abrasive article includes a bonded abrasive body having abrasive particles comprising microcrystalline alumina (MCA) contained within a bond material. In an embodiment, the bonded abrasive body has a strength ratio (MOR/MOE) of at least about 0.80. | 10-04-2012 |
20130000214 | Abrasive Particles for Chemical Mechanical Polishing - An abrasive composition for polishing substrates including a plurality of abrasive particles having a poly-dispersed particle size distribution with median particle size, by volume, being about 20 nanometers to about 100 nanometers; a span value, by volume, being greater than or equal to about 15 nanometers, wherein the fraction of particles greater than about 100 nanometers is less than or equal to about 20% by volume of the abrasive particles. | 01-03-2013 |
20130000215 | ABRASIVE AGGREGATE INCLUDING SILICON CARBIDE AND A METHOD OF MAKING SAME - An abrasive article can include an abrasive aggregate with the abrasive aggregate having a plurality of silicon carbide particles bonded together by a binder material. The binder material can include a vitreous phase material, a crystalline phase material, or both. In an embodiment, the crystalline phase material can include an aluminosilicate material. In a particular embodiment, abrasive aggregates can be formed from a mixture including silicon carbide particles, a binder material, and a liquid carrier. The mixture can be formed into a number of green granules that are vibrated and heated on a platen. In an illustrative embodiment, the green granules can then be heated to form abrasive aggregates. | 01-03-2013 |
20130055646 | Method for producing purified alkali silicate aqueous solution and silica sol - To provide a method for producing an alkali silicate aqueous solution containing a reduced amount of foreign substance of plate-like fine particles and a method for producing a silica sol containing a reduced amount of foreign substance of plate-like fine particles. A method for producing an alkali silicate aqueous solution fulfilling the following condition: the existing amount of plate-like fine particles having a length of one side of 0.2 to 4.0 μm and a thickness of 1 to 100 nm is determined to be 0 to 30%. The method for producing an alkali silicate aqueous solution includes the steps of adjusting a silica concentration of an alkali silicate aqueous solution to 0.5 to 10.0% by mass and filtering the alkali silicate aqueous solution through a filter having a removal rate of particles with a primary particle size of 1.0 μm of 50% or more. | 03-07-2013 |
20130097942 | Converting Coal Ash and Electric Arc Furnace Dust Into Glass-Ceramic Materials - A process for control melting a mixture of coal ash, electric arc furnace dust, recycled glass and additives to create a feedstock. The feedstock is quenched or air dried in a mold to create useful products, such as fracking compounds, abrasives, construction products, building materials, landscaping materials, and the like. | 04-25-2013 |
20130167448 | Bonded Abrasive Article and Method of Forming - A method of forming an abrasive article includes providing a green body having abrasive particles including microcrystalline alumina, and heating the green body via microwave radiation to form a bonded abrasive body including the abrasive particles and a bond material comprising a vitreous phase. | 07-04-2013 |
20130199106 | POLISHING COMPOSITION - A polishing composition contains colloidal silica particles having protrusions on the surfaces thereof. The average of values respectively obtained by dividing the height of a protrusion on the surface of each particle belonging to the part of the colloidal silica particles that has larger particle diameters than the volume average particle diameter of the colloidal silica particles by the width of a base portion of the same protrusion is no less than 0.245. Preferably, the part of the colloidal silica particles that has larger particle diameter than the volume average particle diameter of the colloidal silica particles has an average aspect ratio of no less than 1.15. Preferably, the protrusions on the surfaces of particles belonging to the part of the colloidal silica particles that has larger particle diameters than the volume average particle diameter of the colloidal silica particles have an average height of no less than 3.5 nm. | 08-08-2013 |
20130205682 | POLISHING COMPOSITION - A polishing composition contains colloidal silica. The colloidal silica satisfies the expression A×D×E×F≧350,000 where “A” denotes the average aspect ratio (dimensionless) of the colloidal silica, “D” denotes the average particle diameter (units: nm) of the colloidal silica, “E” denotes the standard deviation of the particle size (units: nm) of the colloidal silica, and “F” denotes the volume fraction (units: %) of particles having a diameter of 1 to 300 nm in the colloidal silica. The volume fraction of particles having a diameter of 1 to 300 nm in the colloidal silica is 90% or greater. | 08-15-2013 |
20130263523 | FUSED CERAMIC PARTICLE - The present invention relates to a fused ceramic particle having the following chemical composition, as weight percentages based on the oxides, and for a total of 100%:
| 10-10-2013 |
20130263524 | VERY LOW PACKING DENSITY CERAMIC ABRASIVE GRITS AND METHODS OF PRODUCING AND USING THE SAME - Producing and using very low packing density ceramic abrasive grits comprising various fused aluminum oxide materials with or without other oxide additives, fused aluminum oxide-zirconium oxide co-fusions with or without other oxide additives, or sintered sol gel aluminum oxide materials with or without other oxide additives where the ceramic abrasive grains are preferably made by crushing bubbles of the material. | 10-10-2013 |
20130283703 | TiO2 BASED SCRUBBING GRANULES, AND METHODS OF MAKING AND USING SUCH TiO2 BASED SCRUBBING GRANULES | 10-31-2013 |
20130283704 | METHOD FOR PRODUCING POLISHING LIQUID COMPOSITION - Provided is a method for producing a polishing composition capable of reducing scratches and particles of an object to be polished, after polishing. It is a method for producing a polishing composition including a step of filtering with a filtration filter a silica particle dispersion containing colloidal silica whose primary particles have an average particle diameter in a range of 1 to 100 nm, wherein the filtration filter includes diatomite cationized by use of a polyvalent amine compound having 9 to 200 cationic groups in the molecule. | 10-31-2013 |
20130291444 | CMP SLURRY REGENERATION APPARATUS AND METHOD - The CMP slurry regeneration apparatus | 11-07-2013 |
20130305615 | METHOD FOR PRODUCING ALUMINA SINTERED BODY, ALUMINA SINTERED BODY, ABRASIVE GRAINS, AND GRINDSTONE - Provided are a method for producing an alumina sintered compact satisfying the following (1) and (2), which comprises mixing and sintering an ilmenite powder and an alumina powder; the alumina sintered compact obtained according to the production method; and an abrasive grain and a grain stone.
| 11-21-2013 |
20130326963 | POLYCRYSTALLINE DIAMOND MATERIAL - A polycrystalline diamond material comprising a mass of diamond particles or grains exhibiting inter-granular bonding and a binder material comprises a non-metallic catalyst material for diamond, the non-metallic catalyst material for diamond comprising at least one nitrogen compound derived from an ammonium compound and/or at least one halide compound. | 12-12-2013 |
20130333298 | ABRASIVE AGENT, METHOD FOR PRODUCING ABRASIVE AGENTS, AND ELECTRONIC DEVICE - A method for producing abrasive agents includes: adding a silica to a manganese compound; heat-treating the manganese compound to which the silica has been added; forming abrasive grains by milling the manganese compound to which the silica has been added and which has been heat-treated; and adding a solvent to the abrasive grains. | 12-19-2013 |
20130333299 | ABRASIVE RECOVERY METHOD AND ABRASIVE RECOVERY DEVICE - There is provided an abrasive recovery device and an abrasive recovery method capable of recovering a slurry which is condensed until a concentration of its abrasive becomes high while suppressing an increase in pressure loss and a great decrease in a recovery ratio ascribable to membrane clogging. The abrasive recovery device is a device | 12-19-2013 |
20140007516 | Bonded Abrasive Body and Method Of Forming Same - An abrasive article including a bonded abrasive body having abrasive particles contained within a bond material, the bond material including a vitreous material formed from a mixture having aluminum oxide (Al | 01-09-2014 |
20140007517 | Abrasive Article for Lower Speed Grinding Operations - An abrasive article includes a bonded abrasive body having abrasive particles contained within a bond material. The bonded abrasive body may include an abrasive particle-to-bond material interfacial modulus of elasticity (MOE) of at least about 225 GPa. The bonded abrasive body may be configured to grind a workpiece comprising metal at a speed of less than about 60 m/s. | 01-09-2014 |
20140013674 | High Purity Silica Sol and its Production Method - A method for producing a high purity silica sol is provided. This method has enabled use of water glass for the starting material, and the resulting silica sol has a reduced metal impurity Cu and Ni content compared to conventional methods. The method comprises (1) ultrafiltration of an aqueous solution of an alkali silicate; (2) ion exchange process for removal of at least a part of cationic components in the purified aqueous solution of an alkali silicate; (3) another ion exchange process using a chelating ion exchange resin to obtain high purity silicate solution; and (4) adjustment of a part of the high purity silicate solution (seed solution) to alkaline pH and mixing of this solution with another part of the solution (feed solution) to produce a high purity silica sol having a Cu concentration and a Ni concentration (in relation to the dry silica) of up to 50 ppb. | 01-16-2014 |
20140033617 | Abrasive Article Comprising Abrasive Particles of a Composite Composition - An abrasive article including a body having a bond material and abrasive particles contained in the bond material, the abrasive particles including a composite composition having alumina (Al | 02-06-2014 |
20140069021 | Bonded Abrasive Article and Method of Forming - An abrasive article having an abrasive body including abrasive grains contained within a bond material, wherein the abrasive grains comprise microcrystalline alumina, and wherein the bond material includes less than about 1.0 mol % phosphorous oxide (P | 03-13-2014 |
20140144087 | SUBMICRON ALPHA ALUMINA HIGH TEMPERATURE BONDED ABRASIVES - A high temperature bonded abrasive includes alumina abrasive grits, and a vitreous bond matrix in which the alumina abrasive grits are distributed, the vitreous bond matrix having a cure temperature not less than 1000° C. The alumina abrasive grits include polycrystalline alpha alumina having a fine crystalline microstructure characterized by an alpha alumina average domain size not greater than 500 nm, and the alumina abrasive grits further include a pinning agent that is a dispersed phase in the polycrystalline alpha alumina | 05-29-2014 |
20140157681 | FUNCTIONALIZATION OF CUBIC BORON NITRIDE AND METHOD OF MAKING THE SAME - A superabrasive material and method of making the superabrasive material are provided. The superabrasive material may comprise a superabrasive crystal and a plurality of particles. The plurality of particles may be included within the superabrasive crystal. The plurality of particles may comprise a non-catalyst material. | 06-12-2014 |
20140202085 | BONDED ABRASIVE ARTICLE AND METHOD OF FORMING - An abrasive article includes a body having abrasive grains contained within a bond material comprising a metal or metal alloy, wherein the body comprises a ratio of V | 07-24-2014 |
20140259962 | CARBONATE PCD WITH A DISTRIBUTION OF Si AND/OR Al - A method for making a carbonate polycrystalline diamond body includes combining a first quantity of diamond with a first quantity of magnesium carbonate to form a first layer for forming a working surface, and combining a second quantity of magnesium carbonate to form a second layer adjacent to the first layer, forming an assembly. The method includes placing a quantity of silicon or aluminum in or adjacent to at least a portion of the assembly and sintering the assembly including the silicon or aluminum at high pressure and high temperature, causing the silicon or aluminum to infiltrate at least one layer of the assembly. | 09-18-2014 |
20140290149 | Vitreous Bonded Abrasive - A vitrified superabrasive product includes a superabrasive component and a vitrified bond component in which the superabrasive component is dispersed. The vitrified bond includes an oxide of a lanthanoid. Additionally, the vitrified bond component defines pores that can be essentially all less than 800 μm in diameter. Seventy percent of the pores are in a range of between about 40 μm and about 500 μm and have an average aspect ratio less than about 2. The porosity is in a range of between about 50% and about 90% of the total volume of the superabrasive product. | 10-02-2014 |
20150052824 | AGGLOMERATE ABRASIVE GRAIN COMPRISING INCORPORATED HOLLOW MICROSPHERES - An agglomerate abrasive grain includes a mixture of individual abrasive grains and hollow bodies, wherein the abrasive grains and the hollow bodies are held together via a binding matrix of aluminosilicate and alkali silicate, and the agglomerate abrasive grain has an open porosity and a closed porosity in each case ranging from 5% by volume to 40% by volume, wherein the total porosity of the agglomerate abrasive grain is less than 50% by volume. | 02-26-2015 |
20150075083 | SILICA COMPOSITE PARTICLES AND METHOD OF PREPARING THE SAME - A method of preparing silica composite particles includes preparing an alkali catalyst solution containing an alkali catalyst at a concentration of from 0.6 mol/L to 0.85 mol/L, in a solvent containing alcohol; and supplying, into the alkali catalyst solution, (i) a mixed solution of tetraalkoxysilane and an organic titanium compound in which an organic group is coupled to a titanium atom through oxygen, and (ii) an alkali catalyst. The mixed solution is supplied at a supply amount of from 0.001 mol/(mol·min) to 0.01 mol/(mol·min) relative to the alcohol, and the alkali catalyst is supplied at a supply amount of from 0.1 mol to 0.4 mol, relative to 1 mol of a total supply amount of the tetraalkoxysilane and the organic titanium compound supplied per one minute. | 03-19-2015 |
20150101257 | ABRASIVE MATERIAL FOR SHOT BLASTING, AND METHOD FOR PRODUCING SAME - The abrasive material contains Fe, Si, Ca, Al, Mg and Mn and has an amorphous continuous phase, wherein the total amount of Fe, Si and Ca is 50.0% or more by mass in terms of the total content of FeO, SiO | 04-16-2015 |
20150315442 | Production Method of a Novel Polishing Alumina - Provided is a method for the formation of particulate compounds of selectable size characteristics, which method includes supporting a slurried particulate precursor on a porous support; heating the support such that aggregates of the particulate compound are formed, and desagglomerating the aggregates into their component particulate. In a preferred embodiment, an aqueous slurry of alumina particulate which has not undergone the alpha transition is contacted with a porous support having defined pore and cavity sizes, such that the slurry occupies at least some of the interstices of the porous support. The slurry and support are heated such that the alumina precursor slurry undergoes the alpha transition. The alpha alumina product is then particulated. The support is of such a material that it is either lost through combustion during heating or otherwise removable after heating, such as during or after particulation, without destroying the particle characteristics imparted by the porous support. Additionally, in a further embodiment, co-components are added to the slurry in order to impart desired properties to the particulated product. | 11-05-2015 |
20160053549 | METHODS OF FORMING EARTH-BORING TOOLS - A method of forming a cutting element for an earth-boring tool. The method includes providing diamond particles on a supporting substrate, the volume of diamond particles comprising a plurality of diamond nanoparticles. A catalyst-containing layer is provided on exposed surfaces of the volume of diamond nanoparticles and the supporting substrate. The diamond particles are processed under high temperature and high pressure conditions to form a sintered nanoparticle-enhanced polycrystalline compact. A cutting element and an earth-boring tool including a cutting element are also disclosed. | 02-25-2016 |
20160129553 | BONDED ABRASIVE ARTICLE AND METHOD OF FORMING - An abrasive article includes a body having abrasive grains contained within a bond material comprising a metal or metal alloy, wherein the body comprises a ratio of V | 05-12-2016 |
20160151886 | ABRASIVE ARTICLE INCLUDING AGGLOMERATES HAVING SILICON CARBIDE AND AN INORGANIC BOND MATERIAL | 06-02-2016 |
20160186030 | Non-Spherical Silica Sol, Process for Producing the Same, and Composition for Polishing - Provided is a non-spherical silica sol containing non-spherical silica fine particles dispersed in a dispersion medium, the non-spherical silica fine particles having an average particle diameter in a range of 3 to 150 nm as measured by dynamic light scattering, a minor-diameter/major-diameter ratio in a range of 0.01 to 0.8, and a specific surface area in a range of 10 to 800 m | 06-30-2016 |
20160376468 | Method For Preparing Recycled Abrasive Slurry - A method for preparing a recycled abrasive slurry includes: polishing a material to be polished, which includes silicon as a main component, with an abrasive slurry including a plurality of kinds of additives added for different purposes; and preparing a recycled abrasive slurry from a collected abrasive slurry collected after the polishing, wherein the recycled abrasive slurry is prepared through: step 1 of removing, from the collected abrasive slurry, at least an additive B capable of decreasing a polishing rate among the plurality of additives, and step 2 of replenishing at least an additive A capable of increasing a polishing rate among the plurality of additives, to the abrasive slurry from which an additive has been removed, which has been prepared in step 1. | 12-29-2016 |
20190144728 | POLISHING COMPOSITION | 05-16-2019 |