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| Number | Title | Issue Date |
| 8143184 | Method for the preparation of olefin polymerisation catalyst The invention is directed to a process for producing an olefin polymerization catalyst wherein a solution of a soluble magnesium complex containing an element of is Group 13 or 14 of the Periodic Table (IUPAC) is contacted with a halogen containing transition metal ... | 03/27/2012 |
| 8138112 | Controlled distribution of active sites in ziegler-natta catalyst systems The present invention provides a method for improving and controlling the activity of Ziegler-Natta catalyst systems. ... | 03/20/2012 |
| 8076258 | Method and apparatus for making recyclable catalysts A method of producing a fixed-bed catalyst with nano-scale structure using a nano-powder production reactor and a filter, the method comprising: introducing a starting powder into the reactor, wherein the starting powder comprises catalyst material; the reactor nano... | 12/13/2011 |
| 8058200 | Catalysts for olefin polymerization This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metall... | 11/15/2011 |
| 8030241 | 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... | 10/04/2011 |
| 7939460 | Process for producing solid catalyst component precursor for olefin polymerization A production process is provided for an olefin polymerization catalyst component precursor, including the steps of (I) adding an organomagnesium compound to a solution containing a solvent, a Si—O bond-containing silicon compound, and a defined titanium compound, ... | 05/10/2011 |
| 7932205 | Process for the preparation of multimetallic catalysts that can be used in reactions for transformation of hydrocarbons The invention relates to a process for the preparation of a catalyst comprising: a) The preparation of a colloidal oxide suspension of a first metal M1 that consists in the neutralization of a basic solution by an acidic mineral solution that contains t... | 04/26/2011 |
| 7842634 | Blended catalyst with improved performance A useful partial oxidation catalyst element includes a catalyst component, a support component, and a substrate. The catalyst component is formed by combining a catalytically active metal with a first support material to form a mixture and calcining the mixture. The... | 11/30/2010 |
| 7816296 | Hindered polyalicyclic alkyl catalysts and their use in a gas-phase polymerization reactor Embodiments of the present invention include a method of polymerizing olefins comprising contacting olefins with a catalyst composition made by the process of combining a hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposi... | 10/19/2010 |
| 7776776 | Method for preparing catalyst platinum supported on lithium cobalt oxide The present invention relates to a method for preparing catalyst platinum supported on lithium cobalt oxide for sodium borohydride hydrolysis. The catalyst with crystalline platinum is produced by mixing dihydrogen hexachloroplatinumate and black lithium-cobalt-oxid... | 08/17/2010 |
| 7718563 | Production of olefin polymerization catalysts The invention provides a process for producing an olefin polymerization catalyst, comprising an organometallic compound of a transition metal or of an actinide or lanthanide, in the form of solid catalyst particles, comprising forming a liquid/liquid emulsion system... | 05/18/2010 |
| 7683002 | Transition metal catalyst and formation thereof Catalyst systems and methods of forming the catalyst systems are described herein. The methods generally include contacting a support material with an activator to form a support composition, contacting a component with at least a portion of an aluminum containing c... | 03/23/2010 |
| 7683003 | Method for identifying Ziegler-Natta cocatalysts A method for identifying a catalyst composition for use in the heterogeneous Ziegler-Natta addition polymerization of an olefin monomer, said catalyst composition comprising a procatalyst comprising a magnesium and titanium containing procatalyst and a cocatalyst sa... | 03/23/2010 |
| 7659223 | Process for preparing an olefin polymerization catalyst component with improved high temperature activity The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having an improved high temperature activity and the use thereof in a process for polymerizing olefins. ... | 02/09/2010 |
| 7655590 | Ziegler-Natta catalyst for particle size control Catalyst components, methods of forming catalyst compositions, polymerization processes utilizing the catalyst compositions and polymers formed thereby are described herein. The methods generally include providing a magnesium dialkoxide compound, contacting the magn... | 02/02/2010 |
| 7601664 | Olefin polymerization catalyst compositions and method of preparation A method of making a solid procatalyst composition for use in a Ziegler-Natta olefin polymerization catalyst composition, said method comprising: contacting a precursor composition comprising a magnesium compound with a titanium ha... | 10/13/2009 |
| 7557057 | Method for preparation of highly dispersed supported platinum catalyst The present invention relates to a method for synthesizing highly dispersed supported platinum catalyst. More particularly, the present invention relates to a method of synthesizing highly dispersed supported platinum catalyst comprising: dissolving a reducing agent... | 07/07/2009 |
| 7538060 | Palladium-copper chromite hydrogenation catalysts Disclosed are catalysts comprising copper chromite, palladium and lanthanum having hydrogenation activity. The combination of copper chromite with palladium and lanthanum enhances catalyst activity more than the presence of either palladium alone or palladium in com... | 05/26/2009 |
| 7449423 | Heat treatment of anchored nanocatalysts in a non-zero oxidation state and catalysts made by such method A catalyst manufacturing process includes heat treating an intermediate catalyst composition that includes catalyst nanoparticles having catalyst atoms in a non-zero oxidation state bonded to a dispersing/anchoring agent. The catalyst nanoparticles are formed using ... | 11/11/2008 |
| 7442667 | Preparation of supported cocatalysts The present invention relates to a process for preparing a supported cocatalyst for olefin polymerization, which comprises reacting A) a support bearing functional groups, B) triethylaluminum and C) a compound of the formula (I), (R | 10/28/2008 |
| 7435840 | Method for producing orthometalated and orthosubstituted metallocenes The invention relates to compounds having a structural element of formula (I) in an aromatic hydrocarbon ring, wherein: M represents —Li, —MgX3, (C1-C18-Alkyl)3Sn—, —ZnX3 or —B(O—C1-C... | 10/14/2008 |
| 7432220 | Method for the preparation of olefin polymerization catalyst support and an olefin polymerization catalyst The invention is directed to a process for producing a particulate support for an olefin polymerisation catalyst wherein a solution of a magnesium compound is contacted with a solution of an element of Group (13 or 14) of the Periodic Table (IUPAC) to obtain a solid... | 10/07/2008 |
| 7427653 | Catalyst components for the polymerization of olefins A catalyst component for olefin (co)polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters, amines, ketones, or nitriles, characterized in that the molar ratio Mg/Ti ... | 09/23/2008 |
| 7417097 | Organometal compound catalyst 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... | 08/26/2008 |
| 7416579 | Preparing nanosize platinum-titanium alloys Nanometer sized particles containing titanium and platinum are prepared by a sonochemical process. Compounds of the metals are dissolved, suspended, or diluted in a low vapor pressure liquid medium, preferably at a sub-ambient temperature. A reducing gas is bubbled ... | 08/26/2008 |
| 7414005 | Preparation of catalyst compositions having improved activity The present invention relates to a process for preparing a catalyst composition for olefin polymerization, which comprises preparing a catalyst solid in a first step by bringing A) at least one support, B) at least one organic compound having at least one functional... | 08/19/2008 |
| 7410925 | Metal compound, and catalyst component and catalyst for addition polymerization, and process for producing addition polymer A metal compound obtained by a process comprising the step of contacting, in a specific ratio, a compound represented by the formula BiL1r, a compound represented by the formula R1s-1TH, and a compound represented by the f... | 08/12/2008 |
| 7390770 | Catalyst for purifying an exhaust gas and a preparation process of the catalyst A catalyst for purifying an exhaust gas containing carbon monoxide and volatile organic compounds, which has a coat layer of a carrier composed of a porous inorganic compound, wherein the coat layer is a single layer, the porous inorganic compound has a BET specific... | 06/24/2008 |
| 7390764 | Organometal catalyst compositions 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 catal... | 06/24/2008 |
| 7387980 | Methods of using heterocycle-amine ligands, compositions, complexes, and catalysts Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics... | 06/17/2008 |
| 7385015 | Trialkylaluminum treated supports This invention relates to a process to prepare a trialkylaluminum treated support comprising: 1) combining a support with first trialkylaluminum compound(s), where the alkyl groups have at least 2 carbon atoms; then 2) calcining the combination of the support and th... | 06/10/2008 |
| 7384886 | Methods of preparation of an olefin oligomerization catalyst A method of making a catalyst for use in oligomerizing an olefin comprising a chromium-containing compound, a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising contacting a composition comprisin... | 06/10/2008 |
| 7381778 | Method of preparing a treated support This invention relates to a method of preparing a supported catalyst comprising the steps of contacting a solid titanium with a supported catalyst compound, and heating the combination to at least 150° C. ... | 06/03/2008 |
| 7381240 | Platinum particles with varying morphology Nanometer to micrometer sized particles containing platinum and having selected morphologies are prepared by a sonochemical process. A compound of platinum is dissolved, suspended, or diluted in a suitable liquid medium at a predetermined concentration and the liqui... | 06/03/2008 |
| 7365137 | Multistep process for the (co) polymerization of olefins A multistep process for the polymerization of one or more olefins comprising a first step of polymerizing one or more of said olefins in the presence of a catalyst of the Ziegler-Natta type, a step wherein the polymer obtained in the first step is contacted with a c... | 04/29/2008 |
| 7361714 | Catalyst and method for hydrogenating aromatic compounds The invention relates to the hydrogenation of aromatic compounds, in particular the preparation of alicyclic polycarboxylic acids or esters of these, via ring hydrogenation of the corresponding aromatic polycarboxylic acids or esters of these, and also to catalysts ... | 04/22/2008 |
| 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 |
| 7348460 | Method for producing alkanol alkoxylates at optimal reaction temperatures The present invention relates to a process for preparing at least one alkoxylate, which comprises bringing at least one alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, pentylene oxide and decene oxide into contac... | 03/25/2008 |
| 7342078 | Transition metal compound, ligand system, catalyst system and the use of the latter for polymerisation and copolymerisation of olefins A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which ... | 03/11/2008 |
| 7332455 | Catalyst component and catalyst for olefin polymerization as well as use thereof The present invention relates to a catalyst component and a catalyst for olefin polymerization. The catalyst component utilizes magnesium halide and silica as composite support, and the particle morphology thereof can be improved by regulating the ratio of magnesium... | 02/19/2008 |
