Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8080231 | Process for making nanoporous ultrafine alpha-alumina powder The present invention provides nanoporous α-alumina powders comprising powder comprising interconnected α-alumina primary particles having an average particle size of less than about 100 nm and an interpenetrated array of pores or voids. The invention also provide... | 12/20/2011 |
| 7641887 | Alumina-on-alumina composite supports The invention relates to the field of catalyst supports presenting a pore volume having an at least bimodal distribution, thus defining a main porosity and a secondary porosity, the main porosity being of an average size greater than the secondary porosity. ... | 01/05/2010 |
| 7442361 | Method of producing aluminum hydroxides by precipitating aluminum salts in the presence of seed crystals The invention relates to a procedure for manufacturing alumina hydrates by precipitating aluminum salts in the presence of crystal nuclei of a specific size. ... | 10/28/2008 |
| 7402612 | Stabilized transition alumina catalyst support from boehmite and catalysts made therefrom This invention relates to methods for making a stabilized transition alumina of enhanced hydrothermal stability, which include the introduction of at least one structural stabilizer; a steaming step before or after the introduction step, wherein steaming is effectiv... | 07/22/2008 |
| 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 |
| 7351393 | Star shaped alumina extrudates and catalyst based thereon This invention is directed to star shaped alumina extrudates with a pore volume in the pores of a diameter over 1000 nm, as determined by mercury porosity, of at least 0.05 ml/g and a total pore volume between 0.5-0.75 ml/g. The extrudates have a length of between 2... | 04/01/2008 |
| 7341977 | Method of sorbing sulfur compounds using nanocrystalline mesoporous metal oxides Compounds and methods for sorbing organosulfur compounds from fluids are provided. Generally, compounds according to the present invention comprise mesoporous, nanocrystalline metal oxides. Preferred metal oxide compounds either exhibit soft Lewis acid properties or... | 03/11/2008 |
| 7341976 | Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using A stabilized catalyst support having improved hydrothermal stability, catalyst made therefrom, and method for producing hydrocarbons from synthesis gas using said catalyst. The stabilized support is made by a method comprising treating a crystalline hydrous alumina ... | 03/11/2008 |
| 7294291 | Ceramicrete stabilization of U-and Pu-bearing materials A method of stabilizing nuclear material is disclosed. Oxides or halides of actinides and/or transuranics (TRUs) and/or hydrocarbons and/or acids contaminated with actinides and/or TRUs are treated by adjusting the pH of the nuclear material to not less than about 5... | 11/13/2007 |
| 7294328 | Method for producing α-alumina formed body A high-strength α-alumina formed body with a low soda content, of which pore distribution is controlled, can be provided in an easy and inexpensive manner. The α-alumina formed body can be produced by a method comprising calcining a gibbsite-phase aluminum hydroxi... | 11/13/2007 |
| 7265075 | Hydro-refining catalyst, carrier for use therein and method for production thereof A method for producing a hydrorefining catalyst of the present invention has a step of preparing an aluminum solution containing phosphorus in a molar ratio of 0.001 to 0.05 with respect to aluminum; a step of neutralizing the prepared aluminum solution to produce a... | 09/04/2007 |
| 7259128 | Titanium oxide and alumina alkali metal compositions The invention relates to Group 1 metal/porous metal oxide compositions comprising porous metal oxide selected from porous titanium oxide and porous alumina and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0 and ... | 08/21/2007 |
| 7252873 | Electrostatographic apparatus having transport member with high friction layer A method for forming a receiver transport member for an electrostatographic reproduction apparatus. The transport member transports receiver members with respect to a fuser assembly and is frictional coupled to a transfer member for driving the transfer member. The ... | 08/07/2007 |
| 7211238 | Mesoporous aluminum oxide, preparation and use thereof Mesoporous aluminum oxides with high surface areas have been synthesized using inexpensive, small organic templating agents instead of surfactants. Optionally, some of the aluminum can be framework-substituted by one or more other elements. The material has high the... | 05/01/2007 |
| 7208446 | Quasi-crystalline boehmites containing additives The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transiti... | 04/24/2007 |
| 7176160 | Method for forming a Fischer-Tropsch catalyst using a boehmite support A method is provided for forming a highly active Fischer-Tropsch catalyst using boehmite having a particular crystallite size. In this method, a support material comprising boehmite is contacted with a catalytic metal-containing compound to form a catalyst precursor... | 02/13/2007 |
| 7125538 | Alumina and methods for preparing the same The invention provides alumina agglomerates of the type obtained by dehydrating an aluminum hydroxide or oxyhydroxide, agglomerating the alumina obtained, hydrothermally treating the agglomerates and calcining. The invention also provides a catalyst support, an adso... | 10/24/2006 |
| 7120380 | Electrostatographic apparatus having transport member with release oil-absorbing layer An electrostatographic reproduction apparatus includes: a primary imaging member for producing an electrostatic latent image on a receiver, a development station for applying toner particles to the latent image to form a developed toner image on the receiver, a fuse... | 10/10/2006 |
| 7090825 | Alumina agglomerates and preparation method thereof The invention relates to alumina agglomerates of the type obtained by dehydrating an aluminium oxyhydroxide or hydroxide, agglomerating the alumina thus obtained, hydrothermally treating the agglomerates and calcinating same. Said agglomerates are characterised in t... | 08/15/2006 |
| 7090824 | Mesostructured transition aluminas Mesoporous crystalline alumina compositions and process for the preparation thereof are described. The compositions are useful as catalysts and absorbents. ... | 08/15/2006 |
| 7067157 | Flaky α-alumina particles and method for producing the same Flake-like α-alumina particles having an average major diameter of 0.5 to 25 μm and an aspect ratio, expressed by particle major diameter/average thickness, of greater than 50 to 2000 and having a thin flat form. The flake-like α-alumina particles are produced by... | 06/27/2006 |
| 7049451 | Carrier of catalyst for production of epoxide, catalyst for production of epoxide, and method for production of epoxide A carrier for use in the catalyst for the production of an epoxide is obtained by preparing a carrier precursor containing (a) α-alumina, (b) silicon or a compound thereof, and (c) at least one element selected from the class consisting of germanium, tin, lead, pho... | 05/23/2006 |
| 7033418 | Method and materials for purifying hydride gases, inert gases, and non-reactive gases A process for removing trace amounts of moisture and/or one or more impurities from contaminated hydride, inert and non-reactive gases, thus decreasing the concentration of the impurities to parts-per-billion (ppb) or parts-per-trillion (ppt) levels. The gas purifie... | 04/25/2006 |
| 7011809 | Attrition resistant gamma-alumina catalyst support A γ-alumina catalyst support having improved attrition resistance produced by a method comprising the steps of treating a particulate γ-alumina material with an acidic aqueous solution comprising water and nitric acid and then, prior to adding any catalytic materi... | 03/14/2006 |
| 6967185 | Synthesis of noble metal, sulphide catalysts in a sulfide ion-free aqueous environment A noble metal sulfide catalyst obtained by reaction of a precursor of at least one noble metal with a thionic species in an aqueous environment essentially free of sulfide ions useful as an electrocatalyst in the depolarized electrolysis of hydrochloric acid. ... | 11/22/2005 |
| 6964756 | Method for treating alumina honeycomb monoliths High-surface-area alumina honeycombs are subjected to a water vapor pre-treatment to obtain protection from cracking damage on subsequent exposure to aqueous media e.g., aqueous solutions for depositing catalysts on the honeycombs. ... | 11/15/2005 |
| 6962684 | Activated alumina formed body and method for producing the same An activated alumina formed body with a high bulk density and a large macro-pore volume is provided. The activated alumina formed body can be produced by a method comprising the steps of calcining a gibbsite-phase aluminum hydroxide having a median particle size of ... | 11/08/2005 |
| 6926875 | Porous material process of producing the porous material, catalyst for purifying exhaust gas comprising the porous material, method of purifying exhaust gas Disclosed are a porous material comprising particles without substantial fibrous structure and having pores, the pores having a mean pore diameter in a meson-pore region, sharp pore size distribution, and at least a part of the pores being connected three-dimensiona... | 08/09/2005 |
| 6919294 | Method for preparing hydrogenation purification catalyst A method for producing a hydrorefining catalyst is used to produce the hydrorefining catalyst which contains an inorganic oxide carrier and a hydrogenation-active metal and which has such a bimodal pore characteristic that pores having pore diameters of not more tha... | 07/19/2005 |
| 6908604 | Macrostructures of porous inorganic material and process for their preparation There is provided macrostructures of porous inorganic material which can have controlled size, shape, and/or porosity and a process for preparing the macrostructures. The macrostructures comprise a three-dimension network of particles of porous inorganic materials. ... | 06/21/2005 |
| 6884406 | Process for preparing an alumina composition Disclosed is a process for preparing an alumina composition having high specific surface area and large pore volume, comprising preparing a reaction mixture having a given molar ratio between a monobasic acid and water by the use of an aluminum source such as acid-c... | 04/26/2005 |
| 6790422 | Catalytic treatment of gaseous effluents containing varying amounts of sulfur compounds Active alumina catalysts, well suited for the Claus reaction, for the hydrolysis of organosulfur compounds and for catalytically removing objectionable sulfur compounds from gaseous effluents comprised thereof, contain a cocatalytically effective amount of sodium va... | 09/14/2004 |
| 6773690 | Boehmitic aluminas, and high-temperature stabile and highly porous aluminum oxides in a pure phase which are obtained therefrom This invention relates to crystalline boehmitic aluminas the crystallites of which exhibit unusual dimensional differences in the space directions 020 and 120. This invention further relates to a method for preparing such aluminas and the follow-up products obtained... | 08/10/2004 |
| 6764672 | Thermally stable alumina particulates Thermally stable transitional alumina particulates retaining high specific surface area after calcination at 1000° C. suitable for the use as catalysts or catalysts supports are produced by treating an aqueous solution containing Al3+ and optionally a do... | 07/20/2004 |
| 6758345 | Treatment media for water purification The present invention relates to treatment media for purifying water, and methods for forming such treatment media. Formation of the treatment media of the present invention entails heating an alumina substrate to a temperature in the range of 375° F. to 300° F. a... | 07/06/2004 |
| 6740621 | Attrition resistant Fischer-Tropsch catalyst and support A catalyst support having improved attrition resistance and a catalyst produced therefrom. The catalyst support is produced by a method comprising the step of treating calcined γ-alumina having no catalytic material added thereto with an acidic aqueous solution hav... | 05/25/2004 |
| 6719821 | Precursors of engineered powders The production and selection of precursor mixtures used to produce fine powders and methods for making fine powders using the selected precursor. The precursor mixture comprises at least one metal containing precursor, the metal containing precursor has an average m... | 04/13/2004 |
| 6713428 | Dispersible aluminium hydrate, method for preparing same and use for preparing catalysts The present invention concerns a novel, highly dispersible aluminium hydrate. It also concerns a process for preparing said aluminium hydrate by precipitation of an aluminium hydrate in a reactor with no back-mixing and preparation of said aluminium hydrate in a rea... | 03/30/2004 |
| 6689333 | Process for the preparation of quasi-crystalline boehmites from inexpensive precursors The present invention pertains to cheaper process for the preparation of quasi-crystalline boehmite containing additive in a homogeneously dispersed state. In this cheaper process an inexpensive quasi-crystalline boehmite precursor is and additive are com... | 02/10/2004 |
| 6676913 | Catalyst composition and method of controlling PFC and HFC emissions The present invention relates to a catalytic process for the destruction of PFC's and HFC's using a catalyst which comprises aluminum oxide that has preferably been stabilized through the addition of a stabilizing agent (such as, titanium, zirconium, or c... | 01/13/2004 |
