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| Number | Title | Issue Date |
| 8048394 | Mesoporous silica particles The present invention relates to (1) hollow silica particles including an outer shell portion having a mesoporous structure with an average pore size of from 1 to 10 nm, wherein the silica particles have an average particle diameter of from 0.05 to 10 μm, and 80% o... | 11/01/2011 |
| 7985392 | Cake of easily dispersible precipitated silica An easily dispersible cake of precipitated silica, wherein the precipitated silica has a BET specific surface area of at least 220 m2/g. When the cake is dispersed in ion-exchange water to provide an aqueous dispersion of the silica of 5% by weight in con... | 07/26/2011 |
| 7799304 | Highly-structured silica having a low water uptake, preparation method thereof and uses of same The invention relates to a highly-structured precipitated silica having a low water uptake and high dispersibility in different pasty or solid matrices or media, elastomers or silicon, and to the preparation method thereof. The invention also relates to the use of s... | 09/21/2010 |
| 7794681 | Method for producing silicon oxide powder An efficient method for producing a silicon oxide powder at a low cost is provided. This method comprises the steps of heating a powder mixture of a silicon dioxide powder and a metal silicon powder to a temperature of 1,100 to 1,450° C. in an inert gas or under re... | 09/14/2010 |
| 7767180 | Precipitated silicas having special surface properties Precipitated silicas having an SiOHisolated absorbance ratio of greater than or equal to 1, may be used as reinforcers and thickeners for sealants. ... | 08/03/2010 |
| 7700062 | Methods for synthesizing precipitated silica and use thereof The synthesis of precipitated silica having improved chemical and physical properties of use as a reinforcing filler in polymeric matrices is described. Improvements in the properties result from the synthesis of the silica al a reduced ionic strength. In particular... | 04/20/2010 |
| 7572424 | Self-assembly of nanoporous silica fibers of uniform shape This disclosure describes a self-assembly templating of a cationic surfactant in the presence of a silica precursor that is free of an excessive variability of the assembled shapes and has a yield approaching one hundred percent. This disclosure describes a self-ass... | 08/11/2009 |
| 7442356 | Process for producing inorganic spheres To provide a process for producing inorganic spheres having a substantially uniform particle size with high productivity. In a process for producing inorganic spheres, which comprises a step of injecting an alkaline aqueous liquid containing an inorganic compound in... | 10/28/2008 |
| 7378076 | Process for production of macrostructures of a microporous material The invention involves a process for production of macrostructures of a microporous material. The process is characterized by the fact that seeds formed in or introduced by ion exchange or adsorption to a porous organic ion exchanger with the desired size, shape and... | 05/27/2008 |
| 7378072 | Method for the preparation of aerogels A method for the preparation of aerogels that involves the exchange of the liquid present in the aquagel with xenon and the subsequent extraction thereof. ... | 05/27/2008 |
| 7371916 | Conversion of an alcoholic oxygenate to propylene using moving bed technology and an etherification step The average propylene selectivity per on-stream cycle of an alcoholic oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a feed pretreatment step involving a cata... | 05/13/2008 |
| 7371915 | Conversion of oxygenate to propylene using moving bed technology The average cycle propylene selectivity of an oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is substantially enhanced by the use of moving bed reactor technology in the hydrocarbon synthesis portio... | 05/13/2008 |
| 7341625 | Method for the production of coated, fine-particle, inorganic solids and use thereof Disclosed is a method for producing coated, fine-particle, inorganic solids, the surface of which is coated with fine inorganic solid particles containing at least two different organic additives. At least one of said additives contains a wetting agent, dispersing a... | 03/11/2008 |
| 7335342 | Process for the preparation of sodium silicate from Kimberlite tailing In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting Kimberlite tailing with mineral acid to remove acid soluble impurities foll... | 02/26/2008 |
| 7335717 | Methods, compositions, and biomimetic catalysts for the synthesis of silica, polysilsequioxanes, polysiloxanes, non-silicon metalloid-oxygen networks, polymetallo-oxanes, and their organic or hydrido conjugates and derivatives The in vitro polymerization of silica, silicone, non-silicon metalloid-oxane and metallo-oxane polymer networks, by combining a catalyst and a substrate to polymerize the substrate to form silica, polysiloxanes, polymetalloid-oxanes polymetallo-oxanes (metal oxides)... | 02/26/2008 |
| 7317133 | Process for enhanced olefin production The present invention relates to a process for the production of light weight olefins comprising olefins having from 2 to 3 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone c... | 01/08/2008 |
| 7306788 | High-cleaning/moderate abrasive silica materials and dentifrice containing such materials Unique abrasive and/or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial characteristics depending on the structure of the composite in situ generated mat... | 12/11/2007 |
| 7303742 | Viscosity-modifying silica materials that exhibit low cleaning and abrasive levels and dentifrices thereof Unique abrasive and/or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial characteristics depending on the structure of the composite in situ generated mat... | 12/04/2007 |
| 7270794 | Process for recovering useful products and energy from siliceous plant matter In the process disclosed herein, siliceous plant matter is steeped in water, soaked in an aqueous solution containing a solute which solubilizes inorganic oxides, soaked in an aqueous solution containing an oxidizing solute, rinsed, dried and thermally pyrolyzed to ... | 09/18/2007 |
| 7270803 | High-cleaning, low abrasion, high brightness silica materials for dentrifices Unique abrasive materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial, particularly simultaneously high pellicle film cleaning properties and moderate dentin abrasion le... | 09/18/2007 |
| 7267814 | High-cleaning/low abrasive silica and materials and dentifrice containing such materials Unique abrasive and/or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial characteristics depending on the structure of the composite in situ generated mat... | 09/11/2007 |
| 7262254 | Tire with low volatile alcohol emission rubber tread with compositional limitations The invention relates to a tire having a tread of a rubber composition with compositional limitations containing minimal, if any, of in situ formed volatile alcohol byproduct. The tread component rubber composition contains a combination or pre-hydrophobated silica ... | 08/28/2007 |
| 7258826 | Low dust preservative powders for lignocellulosic composites The manufacture of zinc borate and calcium borate powders in a water slurry and drying those powders in a controlled manner such as to leave a desired residual of moisture content uniformly dispersed throughout the product produces a low dust, flowable material. Thi... | 08/21/2007 |
| 7255852 | Precipitated silica product, dentifrices containing same, and processes Precipitated silica comprising porous silica particles having a cumulative surface area for all pores having diameters greater than 500 Å of less than 8 m2/g, as measured by mercury intrusion, and a percentage cetylpyridinium chloride (% CPC) Compatibil... | 08/14/2007 |
| 7253224 | Silica-based particulates A silica-based particulate material that may contain less than 5 wt. % of a multivalent cation and a method of preparing such a silica-based particulate material. The silica-based particulate material may be characterized as having a median particle size of at least... | 08/07/2007 |
| 7232480 | Modified carbon black carbon black dispersion liquid and water base ink There are provided a carbon black according to which long-term stable storage is possible, clogging is not prone to occurring, and the OD value is high and hence printing with a deep black color is possible, or a carbon black that can be used in a water-based ink th... | 06/19/2007 |
| 7220304 | Modified carbon black dispersion liquid and water base ink containing the same The present invention provides a water-based ink that is used in ink jet printer printing, with a writing instrument, or the like, that has a low settling rate and for which clogging is not prone to occurring, that can be stored stably for a long period without the ... | 05/22/2007 |
| 7214731 | Tire with low hydrocarbon emission rubber combination of tread and sidewall components with compositional limitations The invention relates to a tire of a structural combination of tire tread and sidewall components with compositional limitations containing minimal, if any, of in situ formed alcohol and methyl isobutyl ketone byproducts. The tread component rubber composition conta... | 05/08/2007 |
| 7204969 | High-structure precipitated silicas A precipitated silica having the following physico-chemical characteristics: pH (5% in water) (ISO 787-9)... | 04/17/2007 |
| 7192461 | High concentration silica slurry A high concentration silica slurry can be used for polishing of substrates, such as semiconductor materials. The slurry contains a silica powder dispersed in an solvent. The silica slurry has a silica concentration of more than 50% by weight and a viscosity of less ... | 03/20/2007 |
| 7169261 | Silica-based sols An aqueous sol containing silica-based particles which has an S-value within the range of from 10 to 45%, a viscosity within the range of from 5 to 40 cP, and a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range o... | 01/30/2007 |
| 7153521 | Composition comprising a liquid absorbed on a support based on precipitated silica The invention concerns a conditioned composition comprising at least a liquid absorbed on a support containing a precipitated silica, said silica being in the form of substantially spherical pellets and having: an average pellet size greater than 150 μm; a filling ... | 12/26/2006 |
| 7150862 | Method of manufacturing powder A method of manufacturing a powder, by which it is possible to adjust the strength of the obtained powder is provided. The manufacturing method of a powder involves a step of preparing a slurry containing agglomerated particles of a synthetic material which is produ... | 12/19/2006 |
| 7135429 | Attrition resistant carrier product The present invention is directed to an attrition resistant carrier product such as silica. Further, this invention is directed to the use of a binder to improve the attrition resistance or reduce the friability of a carrier product such as silica. In an embodiment,... | 11/14/2006 |
| 7125432 | Method for making precipitated silica or silicate compositions and products thereof New methods of producing narrower particle size distribution precipitated silica and/or silicate materials are provided. Such a method permits a significant reduction in manufacturing costs through the utilization of more efficient drying/evaporation components, in ... | 10/24/2006 |
| 7112557 | Electrically conductive oil-based mud An electrically conductive oil mud meeting the fluid requirements for resistive logging tools and a method for preparing such mud is disclosed. The fluid has been optimized to deliver performance in a manner as similar to that of a traditional invert emulsion drilli... | 09/26/2006 |
| 7097818 | Silica and silicate by precipitation at constant alkali number, and its use Precipitated silica or silicates, obtainable by acid precipitation of aqueous silicate solutions while maintaining a constant alkali number of at least 1. ... | 08/29/2006 |
| 7087100 | Preparation of nanosized copper and copper compounds The present invention is a process for producing nanosized metal compounds. The preferred product is nanosized copper, nanosized copper (I) oxide, and nanosized copper (II) oxide. The process includes heating a copper metal precursor in a hydrocarbon preferably sele... | 08/08/2006 |
| 7074457 | Process for preparing high-whiteness hydrophobic precipitated silica with ultralow moisture absorption A hydrophobic precipitated silica is prepared by a process comprising: a) preparing a mixture of an organopolysiloxane derivative and a precipitated silica; b) conditioning the mixture obtained at a temperature ran... | 07/11/2006 |
| 7076141 | Low water peak optical waveguide fiber Optical waveguide fiber having low water peak as well as optical waveguide fiber preforms and methods of making optical waveguide fiber preforms from which low water peak and/or low hydrogen aged attenuation optical waveguide fibers are formed, including optical wav... | 07/11/2006 |
