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| Number | Title | Issue Date |
| 7820584 | Visible light-responsive photocatalyst, method for producing same, photocatalyst coating agent using same, and photocatalyst dispersion Disclosed is a photocatalyst which is excited when irradiated with visible light and exhibits high photocatalytic activity stably. This photocatalyst has a white hue with little yellow tint. Specifically, titanium oxide particles and a halogenated platinum compound ... | 10/26/2010 |
| 7419933 | Practical chiral zirconium catalyst A practical chiral zirconium catalyst that can maintain its high catalytic activity even after long-term storage, which is stable in air and storable for a long period of time, and recoverable and reusable after reaction, is provided. ... | 09/02/2008 |
| 7402546 | Magnesium chloride support The invention relates to supports comprising inorganic oxide particles coated with magnesium chloride and a method for making them. The inorganic oxide has a mean particle diameter of less than 5 microns and is used as a seed to crystallize magnesium chloride from s... | 07/22/2008 |
| 7399814 | Living radical polymerization method A highly active and environment-friendly catalyst for use in a living radical polymerization is provided. A catalyst for use in a living radical polymerization method is provided. The catalyst comprises a central element, which is selected from germanium, tin... | 07/15/2008 |
| 7354981 | Polyethylene catalyst and a process for preparing the same The present invention discloses a polyethylene catalyst and a process for preparing the same, said catalyst being composed of a main component of catalyst and a cocatalyst, wherein the main component of catalyst is prepared by reacting: (1) a magnesium-alcohol compl... | 04/08/2008 |
| 7247760 | Hydrogenation palladium-silver catalyst and methods A catalyst composition comprising palladium, silver and a support material (preferably alumina) is contacted with a liquid composition comprising an iodide component such as ammonium iodide, and the catalyst is then calcined. An improved process for hydrogenation, e... | 07/24/2007 |
| 7214641 | Catalyst and hydrogenation of carbonyl compounds in the liquid phase using the catalyst The present invention provides a process for hydrogenating carbonyl compounds, in particular C4-dicarboxylic acids to mixtures of tetrahydrofuran and gamma-butyrolactone, over supported rhenium catalysts, wherein rhenium and at least one further metal of ... | 05/08/2007 |
| 7199076 | Methods of making and using a selective hydrogenation catalyst In an embodiment, a method of hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon includes contacting the highly unsaturated hydrocarbon with a catalyst in the presence of hydrogen. The catalyst comprises palladium and an inorganic support h... | 04/03/2007 |
| 7115770 | Use of tin derivatives as catalysts The invention concerns the use as catalyst for transforming carbamates of compounds corresponding to the general formula (I): —Sn (X) (X′) wherein: X′ is selected among chloride, bromide, iodide, thiocyanate radicals, sulphonate radicals, advantageously perflu... | 10/03/2006 |
| 7053022 | Hydrothermally synthesized MO-V-M-NB-X oxide catalysts for the selective oxidation of hydrocarbons Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitriles b... | 05/30/2006 |
| 7041617 | Catalyst compositions and polyolefins for extrusion coating applications This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention enco... | 05/09/2006 |
| 7034078 | Blends made from propylene ethylene polymers Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer ... | 04/25/2006 |
| 7029374 | Method for cleaning semiconductor wafers A method for cleaning a surface of semiconductor wafer after chemical mechanical polishing in accordance with the present invention comprises the steps of: (1) providing a semiconductor wafer having a surface to be treated; (2) applying a photocatalyst containing so... | 04/18/2006 |
| 7015171 | Photocatalyst comprising titanium fluoride nitride for water decomposition with visible light irradiation A photo-catalyst containing titanium fluoride nitride comprising, Ti(IV)OaNbFc or a compound represented by MeTi(IV)OaNbFc prepared by doping at least one metal Me selected from the group consisting o... | 03/21/2006 |
| 6977322 | Isomerization catalyst and processes A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component ... | 12/20/2005 |
| 6914031 | Photocatalyst granules The photocatalyst granules of the present invention are photocatalyst granules prepared by molding a mixture containing photocatalyst particles and colloidal silica, and drying the molded mixture, wherein the content of the photocatalyst particles in the photocataly... | 07/05/2005 |
| 6903045 | Tin promoted platinum catalyst for carbonylation of lower alkyl alcohols A carbonylation catalyst useful for producing esters and carboxylic acids in a vapor phase carbonylation process, wherein the catalyst includes a solid component having a catalytically effective amount of platinum and tin associated with a solid catalyst support mat... | 06/07/2005 |
| 6838533 | Organometal catalyst composition This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said cata... | 01/04/2005 |
| 6809061 | Selective bifunctional multigradient multimetallic catalyst A novel catalyst and the use thereof in a reforming process are disclosed. The catalyst comprises a refractory inorganic oxide, uniform platinum-group metal, uniform Group IVA (IUPAC 14) metal and surface-layer lanthanide-series metal. The catalyst is particularly s... | 10/26/2004 |
| 6780814 | Multimetallic reforming catalyst comprising platinum and tin, the preparation and the application thereof A multimetallic reforming catalyst and the preparation process thereof are disclosed. Said catalyst comprises the following components on the basis of mass percent: 0.01-2.0 of a Group VIII metal, 0.01-5.0 of a Group IVA metal, 0.01-10.0 of Eu, 0.01-10.0 of Ce, 0.10... | 08/24/2004 |
| 6635598 | Stable and selective dehydrogenation catalyst and a process for the preparation thereof A novel catalyst for use in dehydrogenation of saturated hydrocarbons to unsaturated hydrocarbons and a method for its preparation is disclosed. Said catalyst comprises a composite incorporated within its spatial geometry on a percentage by weight basis, ... | 10/21/2003 |
| 6624110 | Production of Ziegler-Natta catalysts A process for producing a Ziegler-Natta catalyst, the process comprising reacting an organo magnesium compound with a halogenated compound to produce crystalline magnesium halide having an intense diffraction line in an x-ray spectrum thereof at lattice d... | 09/23/2003 |
| 6608155 | Metal halide solid acids and supported metal halides as catalysts for the preparation of hydrocarbon resins Supported metal halides and metal halide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed ... | 08/19/2003 |
| 6593447 | Catalyst for polyester production and process for producing polyester with the same A polyester having a good color tone, an excellent forming property and a high resistance to cohesion of foreign substance around a melt-spinning orifice when the polyester is melt-spun, is produced by polymerizing an aromatic difunctional carboxylic acid... | 07/15/2003 |
| 6576583 | Organometal catalyst composition This invention provides a process for producing a catalyst composition comprising contacting at least one group 4 metallocene, at least one organoaluminum compound, and at least one solid. The solid is selected from the group consisting of titanium tetraf... | 06/10/2003 |
| 6566295 | Method and catalyst system for producing aromatic carbonates A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds is disclosed. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aro... | 05/20/2003 |
| 6548444 | Tin promoted iridium catalyst for carbonylation of lower alkyl alcohols A carbonylation catalyst useful for producing esters and carboxylic acids from reactants including lower alkyl alcohols, lower alkyl alcohol generating compounds, such as ether and ester derivatives of the alcohols, and mixtures thereof in a vapor phase c... | 04/15/2003 |
| 6544439 | Low coke formation catalysts and process for reforming and synthesis gas production Applicants have developed a novel catalyst composition comprising a crystalline metal oxide having the empirical formula: Av Bt+w Nix D(Gu-)y Oz, where A is an alkali metal (e.g.... | 04/08/2003 |
| 6524990 | Active fluoride catalysts for fluorination reactions Active fluoride catalysts that are useful in producing electrophilic fluorination agents; especially useful in producing BDM from the reaction of fluorine with carbon dioxide and FTM from the reaction of fluorine with carbonyl fluoride. The fluoride catal... | 02/25/2003 |
| 6514900 | Catalyst system for producing aromatic carbonates A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy... | 02/04/2003 |
| 6511593 | Homogeneous bed of catalyst and a process for transforming hydrocarbons into aromatic compounds using said bed The invention relates to a homogeneous bed of catalyst particles comprising at least one amorphous matrix, at least one noble metal, at least one additional metal M and at least one halogen, and in which, for a catalyst particle: CPt is the loc... | 01/28/2003 |
| 6500906 | Olefin polymerization chelate catalyst and olefin polymerization method using the same This invention relates to transition metal catalyst component chelated by chelate ligand, a catalytic system comprising the transition metal catalyst component in the presence of magnesium halide, and a process for olefin polymerization using the catalyti... | 12/31/2002 |
| 6495487 | Selective bifunctional multimetallic reforming catalyst A novel catalyst and the use thereof in a reforming process is disclosed. The catalyst comprises a refractory inorganic oxide, platinum-group metal, Group IVA(IUPAC 14) metal, indium and lanthanide-series metal. Utilization of this catalyst in the convers... | 12/17/2002 |
| 6472345 | Catalytic halogenation of activated methylene and methine compounds A process for the halogenation of activated methylene and methine compounds with at least equimolar amounts of an electrophilic halogenation reagent, which comprises reacting said activated methylene and methine compounds in the presence of catalytic amou... | 10/29/2002 |
| 6340711 | Particles aqueous dispersion and film of titanium oxide and preparation thereof An aqueous titanium oxide-dispersed sol comprising titanium oxide particles dispersed in water, said sol comprising chloride ions in an amount of 50 to 10,000 ppm by weight as the chlorine element. Titanium tetrachloride is hydrolyzed to form an aqueous t... | 01/22/2002 |
| 6306985 | High activity solid catalyst for producing low-, medium-, and high-density polyethylenes by slurry phase polymerization, process for preparing the same and use of the same in ethylene polymerization Disclosed is a high activity solid catalyst for synthesizing low-, medium- and high-density polyethylenes by a slurry phase process, prepared by using commercial powered magnesium as raw material, forming a magnesium halide in the nascent state, followed ... | 10/23/2001 |
| 6303716 | High-activity catalyst for producing low-, medium- and high density polyethylenes by gas phase polymerization, process for preparing the same and use of the same in ethylene polymerization Disclosed is a catalyst for synthesizing low-, medium- and high-density polyethylene, prepared by using commercial powdered magnesium as a raw material, forming a magnesium halide in the nascent state, then reacting said magnesium halide with a titanium c... | 10/16/2001 |
| 6294500 | Production of polyethylene having a bimodal molecular weight distribution A process for producing high density polyethylene, the process comprising polymerising ethylene, or copolymerising ethylene and an alpha-olefinic comonomer comprising from 3 to 10 carbon atoms, in the presence of a catalyst system comprising first and sec... | 09/25/2001 |
| 6281160 | Process for preparing catalysts for use in organic compound transformation reactions In a process for preparing a catalyst comprising at least one support, at least one metal from group VIII of the periodic table and at least one additional element M selected from the group formed by germanium, tin, lead, rhenium, gallium, indium and thal... | 08/28/2001 |
| 6278009 | Heterogeneous catalyst components for olefins polymerization, preparation process and use thereof It is shown metallocenes with functionalized bridge of formula ##STR1## wherein M represents a transition metal of groups 3, 4, 5 or 6, L represents cyclopentadienyl-type ligands, Y represents a halogen and which can own one or various bridges between uni... | 08/21/2001 |
