Class / Patent application number | Description | Number of patent applications / Date published |
502152000 | Organic compound including carbon-metal bond | 66 |
20080287286 | Metallocene catalysts, their synthesis and their use for the polymerization of olefins - A process for the preparation of a catalyst system includes the steps of combining a support material with a first composition which includes at least one aluminoxane in a first solvent to provide an aluminoxane loaded support; and, contacting the aluminoxane loaded support with a second composition which includes at least one metallocene compound, a second solvent, and a cocatalyst, wherein the cocatalyst includes a second portion of the at least one aluminoxane alone or in combination with an ionic compound and/or a Lewis acid. | 11-20-2008 |
20090011928 | PHOTOCATALYTIC METHODS FOR PREPARATION OF ELECTROCATALYST MATERIALS - The invention relates to methods of preparing metal particles on a support material, including platinum-containing nanoparticles on a carbon support. Such materials can be used as electrocatalysts, for example as improved electrocatalysts in proton exchange membrane fuel cells (PEM-FCs). | 01-08-2009 |
20090111682 | Hydroconversion Processes Employing Multi-Metallic Catalysts and Method for Making Thereof - A process for making a catalyst precursor is disclosed. In one embodiment, the process comprises co-precipitating at reaction conditions forming a precipitate or cogel: at least a promoter metal compounds selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one of Group VIB metal compounds, at least an organic oxygen-containing ligand L. The precursor is represented by the formula A | 04-30-2009 |
20090270247 | IN SITU OLEFIN POLYMERIZATION CATALYST SYSTEM - Embodiments in accordance with the present invention encompass methods of forming in situ olefin polymerization catalyst systems, catalysts encompassed by such systems and polymers made using such systems. For such in situ olefin polymerization catalyst systems, a hydrocarbyl magnesium halide is generally contacted with a halohydrocarbyl compound to form a halohydrocarbyl Grignard and such Grignard is generally contacted with a Group 10 metal compound to form an olefin polymerization catalyst which is contacted with one or more olefin monomers to form a polymer therefrom. | 10-29-2009 |
20090312178 | CATALYTIC SYSTEM - A catalyst system comprising an asymmetric catalyst, wherein the wherein the catalyst system has a porosity of less than 1.40 ml/g. | 12-17-2009 |
20100029470 | Catalyst Activators, Processes for Making Same, And Use Thereof In Catalysts And Polymerization Of Olefins - Compositions useful for activating catalysts for olefin polymerization are provided. The compositions are derived from at least carrier having at least two hydrogen bonded hydroxyl groups, organoaluminum compound, Lewis base, and Bronsted acid, wherein the Lewis base and the Bronsted acid form at least one ionic Bronsted acid. | 02-04-2010 |
20100105544 | CATALYST IMMOBILIZATION ON SILICEOUS MESOCELLULAR FOAM VIA CLICK CHEMISTRY - The present invention relates to a method for preparing a heterogenised catalyst, comprising grafting a catalyst or catalyst precursor, via click chemistry, to a siliceous mesocellular foam (MCF). The invention also relates to a heterogenised catalyst comprising a catalyst species grafted onto a siliceous mesocellular foam (MCF) via a 1,2,3-triazole | 04-29-2010 |
20100113255 | NOVEL CARBONYLATION LIGANDS AND THEIR USE IN THE CARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS - Novel bidentate ligands of general formula (I) are described Formula (I): R represents a hydrocarbyl aromatic structure. The substituent(s) Yx on the aromatic structure has a total X=1- | 05-06-2010 |
20100197481 | CATALYSTS, ACTIVATING AGENTS, SUPPORT MEDIA, AND RELATED METHODOLOGIES USEFUL FOR MAKING CATALYST SYSTEMS ESPECIALLY WHEN THE CATALYST IS DEPOSITED ONTO THE SUPPORT MEDIA USING PHYSICAL VAPOR DEPOSITION - Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support. | 08-05-2010 |
20100210450 | TUNGSTEN COMPRISING NANOMATERIALS AND RELATED NANOTECHNOLOGY - Nanoparticles comprising tungsten, methods of manufacturing nanoparticles comprising tungsten, and applications of nanoparticles comprising tungsten, such as electronics, optical devices, photonics, reagents for fine chemical synthesis, pigments, and catalysts are provided. | 08-19-2010 |
20100222207 | METHOD OF SYNTHESIZING SILICON CARBIDE MATERIALS FROM SILICON BASED POLYMERS - A method of synthesizing SiC materials comprising the step of making a blend which consists of a silicon based polymer and a metal complex by blending a silicon based polymer solution and a metal complex solution and drying, and firing the blend in an inert gas at 700° C. or more; and a SiC ceramic material which has catalyst performance in which a CO gas is oxidized to generate a CO | 09-02-2010 |
20100240528 | HYDROGEN STORAGE MATERIAL AND RELATED PROCESSES - Disclosed herein is a composition comprising a complex hydride and a borohydride catalyst wherein the borohydride catalyst comprises a BH | 09-23-2010 |
20110021344 | Method for preparing non-metallocene ligands - A method of preparing supported catalysts useful for olefin polymerization is described. The catalysts comprise a Group 4 metal complex that incorporates a tridentate dianionic ligand. An activator mixture is first made from a boron compound having Lewis acidity and an excess of an alumoxane. The activator mixture is then combined with a support and the Group 4 metal complex to give a supported catalyst. The method provides an active, supported catalyst capable of making high-molecular-weight polyolefins. | 01-27-2011 |
20110034324 | Methods for Preparing Catalyst Systems - A process to prepare a catalyst composition that includes combining catalyst precursors in a recycled organic reaction solvent; allowing the catalyst precursors to react to form a catalyst compound; and separating the formed catalyst compound from the reaction solvent is disclosed. | 02-10-2011 |
20120178617 | Preparation of Supported Silyl-Capped Silica-Bound Anion Activators and Associated Catalysts - A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM | 07-12-2012 |
20120184432 | DIETHYLZINC COMPOSITION, METHOD FOR HEAT STABILIZATION, AND COMPOUND FOR HEAT STABILIZATION | 07-19-2012 |
20130045863 | COMPLEX AND METHOD OF PREPARATION - A composition has an empirical formula M (glycerol) a (X) b, where M represents a metal atom selected from titanium, zirconium, hafnium or aluminium, X is a ligand derived from acetylacetone or a peroxo ion; a is a number between 1 and 2. 5; b is a number in the range from 1 to 2. An alternative composition results from the reaction of a compound of titanium, zirconium, hafnium or aluminium with (a) glycerol and (b) either: (i) acetylacetone or (ii) hydrogen peroxide, an inorganic base and water. The composition is useful in applications requiring water-stable metal chelates, particularly as a catalyst for esterification and polyurethane reactions. | 02-21-2013 |
20130072377 | MULTIFUNCTIONAL CHAIN SHUTTLING AGENTS - The invention generally relates to chain shuttling agents (CSAs), a process of preparing the CSAs, a composition comprising a CSA and a catalyst, a process of preparing the composition, a processes of preparing polyolefins, end functional polyolefins, and telechelic polyolefins with the composition, and the polyolefins, end functional polyolefins, and telechelic polyolefins prepared by the processes. | 03-21-2013 |
20130130891 | PRESSURE CONTROL OF THE CATALYST MIXING VESSEL - The present invention relates to a process for preparing catalyst slurry in a catalyst slurry preparation system and supplying catalyst slurry to an ethylene polymerization loop reactor wherein an accurate control of the pressure within said catalyst slurry preparation system is provided. More particularly, the present invention provides a method for preparing a catalyst slurry and supplying said catalyst slurry to an ethylene polymerization loop reactor, said catalyst slurry comprising solid catalyst and a liquid hydrocarbon diluent, wherein said method comprises the steps of:
| 05-23-2013 |
20130267408 | Porous Oxide Microparticles and Composites Thereof and Methods of Making and Using Same - Provided are substantially spherical, porous oxide microparticles having a plurality of substantially spherical voids, substantially spherical, porous oxide-organic polymer composite microparticles having a plurality of substantially spherical organic polymer domains. The microparticles can be made using a microdispersive suspension polymerization step to make microparticles having an organic polymer shell and a plurality of discrete substantially spherical organic nanoparticles. The microparticles can be used as polymerization catalyst supports. | 10-10-2013 |
20150087500 | NOVEL NEODYMIUM COMPOUND AND CATALYST FOR DIENE POLYMERIZATION INCLUDING THE SAME - The present invention relates to a neodymium compound represented by Formula 1 and a catalyst for diene polymerization including the same. | 03-26-2015 |
20160045907 | WATER SOLUBLE CATALYSTS FOR NMR/MRI ENHANCEMENT - Iridium catalysts for nuclear spin polarization enhancement in solution via signal amplification by reversible exchange are provided. The iridium catalysts can be water-soluble iridium catalysts. Also provided are methods for preparing iridium catalysts, and methods of activating and using iridium catalysts for nuclear spin polarization enhancement in solution via signal amplification by reversible exchange. | 02-18-2016 |
20160194414 | PROCESS FOR THE PREPARATION OF 2,2'-BIS-INDENYL BIPHENYL LIGANDS AND THEIR METALLOCENE COMPLEXES | 07-07-2016 |
502153000 | Diverse metals bonded to carbon | 1 |
20160075803 | Novel High Clarity Low Haze Compositions - A first embodiment which is a bimodal polymer having a weight fraction of a lower molecular weight (LMW) component ranging from about 0.25 to about 0.45, a weight fraction of a higher molecular weight (HMW) component ranging from about 0.55 to about 0.75 and a density of from about 0.931 g/cc to about 0.955 g/cc which when tested in accordance with ASTM D1003 using a 1 mil test specimen displays a haze characterized by equation: % Haze=2145−2216*Fraction | 03-17-2016 |
502154000 | Including metal compound containing different metal than that bonded to carbon | 16 |
20090111683 | Hydroconversion Processes Employing Multi-Metallic Catalysts and Method for Making Thereof - A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour. | 04-30-2009 |
20090156392 | CATALYST COMPOSITIONS AND METHODS FOR ALCOHOL PRODUCTION FROM SYNTHESIS GAS - In one aspect of this invention, catalytic compositions produced by calcining intermediates of the formula [NR | 06-18-2009 |
20100062927 | METHOD FOR PREPARING TRANSITION METAL COMPLEXES, TRANSITION METAL COMPLEXES PREPARE USING THE METHOD, CATALYTS COMPOSITION CONTAINING THE COMPLEXES - The present invention provides a novel transition metal complex where a monocy-clopentadienyl ligand to which an amido group is introduced is coordinated, a method for synthesizing the complex, and olefin polymerization using the same. The method for preparing a transition metal complex according to the present invention comprises a step of blocking a by-reaction of a nitrogen atom using a compound containing a protecting group, and thus it is possible to prepare a transition metal complex in a simpler manner in a high yield. Further, the transition metal complex according to the present invention has a pentagon ring structure having an amido group connected by a phenylene bridge in which a stable bond is formed in the vicinity of a metal site, and thus, sterically monomers can easily approach the transition metal complex. When a catalyst composition comprising the transition metal complex is applied in copoly-merization of ethylene and monomers having large steric hindrance, a very low density polyolefin copolymer having a density of less than 0.910 g/cc, in addition to a polyolefin having a high molecular weight and a linear low density, can be prepared. Furthermore, the reactivity is also very high. | 03-11-2010 |
20100197482 | SOLID METAL COMPOUND, PREPARATIONS AND USES THEREOF - The invention relates to a solid metal compound comprising (i) a solid support comprising aluminium oxide, (ii) at least one first metal compound (C1) selected from metal hydrides, organometallic compounds and organometallic hydrides, and comprising a metal (M1) selected from the lanthanides, the actinides and the metals of Groups 4 to 7 of the Periodic Table of the Elements, and (iii) at least one second metal compound (C2) comprising a metal (M2) selected from the metals of Groups 8 to 10 of said Table. The compounds (C1) and (C2) are preferably supported on, particularly grafted onto the solid support. The invention also relates to processes for preparing the solid metal compound, preferably comprising stage (1) comprising dispersing and preferably grafting (i) an organometallic precursor (Pr1) comprising the metal (M1) and (ii) a precursor (Pr2) comprising the metal (M2) onto the support, so as to produce the solid metal compound, and preferably stage (2) comprising contacting the solid metal compound thus obtained with hydrogen and/or a reducing agent. The invention also relates to the use of the solid metal compound in processes comprising hydrocarbon reactions optionally in the presence of hydrogen, and preferably involving the splitting and recombining of carbon-carbon and/or carbon-hydrogen and/or carbon-metal bonds, so as to produce final hydrocarbons different from the starting ones. The solid metal compound can be used in processes comprising alkane and/or alkene metathesis, non-oxidative methane coupling, alkene oligomerisation, methane-olysis of hydrocarbons, cross-metathesis and hydrogenolysis of hydrocarbons, e.g. saturated hydrocarbons, hydrocarbon polymers/oligomers or waxes, in the presence of hydrogen. | 08-05-2010 |
20100248947 | PROCESS FOR HOMO - OR COPOLYMERIZATION OF CONJUGATED OLEFINS - Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from ethylenically unsaturated addition polymerizable monomers. The metal complexes have chemical structures corresponding to one of the following formulae: | 09-30-2010 |
20100279849 | Hydroconversion Multi-Metallic Catalyst and Method for Making Thereof - The invention relates to a bulk multi-metallic catalyst for hydrotreating heavy oil feeds and to a method for preparing the catalyst. The bulk multi-metallic catalyst is prepared by sulfiding a catalyst precursor having a poorly crystalline structure with disordered stacking layers, with a type IV adsorption-desorption isotherms of nitrogen with a hysteresis starting point value of about 0.35, for a sulfided catalyst that will facilitate the reactant's and product's diffusion in catalytic applications. In another embodiment, the precursor is characterized as having a type H3 hysteresis loop. In a third embodiment, the hysteresis loop is characterized as having a well developed plateau above P/P | 11-04-2010 |
20110092357 | SILICA-COATED ALUMINA ACTIVATOR-SUPPORTS FOR METALLOCENE CATALYST COMPOSITIONS - Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins. | 04-21-2011 |
20120135857 | NOVEL ORGANOMETALLIC COMPOUNDS CONTAINING A METAL BELONGING TO THE SECOND COLUMN OF THE PERIODIC TABLE, AND METHOD FOR PREPARING SAME - The present invention relates to a novel organometallic compound based on a divalent metal belonging to the 2 | 05-31-2012 |
20120283089 | ZIEGLER-NATTA CATALYST FOR OLEFIN POLYMERIZATION - The present invention relates to a Ziegler-Natta catalyst, and more specifically to a Ziegler-Natta catalyst for olefin polymerization which may use a compound of Formula 3 as an internal electron donor to obtain polymers with high activity, wide molecular weight distribution and low content of fine particle. | 11-08-2012 |
20130029834 | Aluminoxane Catalyst Activators Derived From Dialkylalumium Cation Precursor Agents, Processes for Making Same, And Use Thereof In Catalysts And Polymerization Of Olefins - Compositions useful for activating catalysts for olefin polymerization, and methods for making same, are provided. Such compositions can be derived from at least: an organoaluminum compound, a carrier, an oxygen source, and, optionally, a Lewis base. | 01-31-2013 |
20130123097 | SUPPORTED IRIDIUM CATALYSTS - A method of converting at least one first alkane to a mixture of at least one low molecular weight alkane (optionally also including additional lower and/or higher molecular weight alkanes) and at least one high molecular weight alkane, comprises: reacting a first alkane in the presence of dual catalyst system comprising a first catalyst (i.e., a hydrogen transfer catalyst) and a second catalyst (i.e., a metathesis catalyst) to produce a mixture of low and high molecular weight alkanes. | 05-16-2013 |
20130267409 | HYDROPROCESSING CATALYST AND METHOD FOR PREPARING SAME - The present invention relates to a hydroprocessing catalyst comprising: (i) one or more hydrogenation metal components selected from a group consisting of VIB group metal, VIIB group metal and VIII group metal; and (ii) an organic compound expressed by the following chemical formula 1 or an organometallic compound expressed by the following chemical formula 2. Chemical formula 1: R | 10-10-2013 |
20140213433 | BIS-IMINE PYRIDINE COMPLEX OF LANTHANIDES CATALYTIC SYSTEM COMPRISING SAID BIS-IMINE PYRIDINE COMPLEX AND PROCESS FOR THE (CO)POLYMERIZATION OF CONJUGATED DIENES - A bis-imine pyridine complex of lanthanides having general formula (I): Said bis-imine pyridine complex of lanthanides having general formula (I) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes. | 07-31-2014 |
20150291709 | PROCESS FOR PREPARING AN OLEFIN POLYMERISATION CATALYST COMPONENT WITH IMPROVED HIGH TEMPERATURE ACTIVITY - The invention refers to a process for increasing the polymerization activity of a titanium containing catalyst, in particular an olefin polymerization catalyst component in particulate form having an improved high temperature activity and the use thereof in a process for polymerizing olefins. | 10-15-2015 |
20150315316 | SUPPORTED ZIEGLER NATTA PROCATALYST FOR ETHYLENE POLYMERISATION - Supported Ziegler-Natta ethylene polymerisation procatalyst comprising special bi-(oxygen containing ring) compounds as internal donor, as well as a process for preparing the same and use of such a procatalyst for preparing a catalyst system used in the polymerisation of ethylene for producing high molecular weight polyethylenes. | 11-05-2015 |
20180021758 | CORE-SHELL SUPPORT, METHOD FOR PRODUCING THE SAME, CATALYST FOR PURIFICATION OF EXHAUST GAS USING THE CORE-SHELL SUPPORT, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PURIFICATION OF EXHAUST GAS USING THE CATALYST FOR PURIFICATION OF EXHAUST GAS | 01-25-2018 |
502155000 | Including phosphorus or sulfur or compound containing nitrogen or phosphorus or sulfur | 21 |
20080254970 | Niobium Compound - A niobium compound, ammonium(bisaquo oxobisoxalato)niobate (NH | 10-16-2008 |
20080287287 | METHODS OF PREPARING A POLYMERIZATION CATALYST - A method of preparing a composition comprising dry mixing commercial grade alumina and a solid sulfating agent to form a mixture and calcining the mixture to form a sulfated alumina support. | 11-20-2008 |
20090143222 | 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 catalyst have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene. | 06-04-2009 |
20090170692 | CATALYSTS FOR RING-CLOSING METATHESIS - A catalyst composition is provided, which may be used for ring closing metathesis. In the composition, a catalyst is immobilized on a siliceous mesocellular foam support. A suitable catalyst for use in the composition is a Grubbs-type catalyst or a Hoveyda-Grubbs-type catalyst. | 07-02-2009 |
20090221418 | METHOD FOR PRODUCTION OF HIGHLY-ACTIVE METAL/METAL OXIDE CATALYSTS - The invention relates to a process for producing a catalyst comprising a porous support and at least one active metal, which comprises
| 09-03-2009 |
20090298675 | PRODUCTION PROCESS OF EXHAUST GAS PURIFYING CATALYST - The present invention relates to a production process of an exhaust gas purifying catalyst, comprising impregnating a support with a solution containing a metal salt and then drying it to load a particle of the metal salt on the support, (a) wherein a base having a less tendency to adsorb and coordinate to the metal salt particle than ammonia is incorporated into the solution to make the solution basic, and thereby the metal salt particle is caused to have a negative zeta potential; or (b) wherein an acid and a base that adsorbs and coordinates to the metal salt particle are incorporated into the solution to make the solution acidic, and thereby the metal salt particle is caused to have a positive zeta potential. | 12-03-2009 |
20100113256 | PROCESS FOR PREPARING CATIONIC RHODIUM COMPLEXES - A process for the synthesis of a cationic rhodium complex comprises the steps of:
| 05-06-2010 |
20100210451 | CATALYSTS AND METHODS FOR CATALYTIC OXIDATION - Catalytic systems and methods for oxidizing materials in the presence of metal catalysts (preferably manganese-containing catalysts) complexed with selected macropolycyclic rigid ligands, preferably cross-bridged macropolycyclic ligands. Included are using these metal catalysts in such processes as: synthetic organic oxidation reactions such as oxidation of organic functional groups, hydrocarbons, and heteroatoms, including enantiomeric epoxidation of alkenes, enynes, sulfides to sulfones and the like; oxidation of oxidizable compounds (e.g., stains) on surfaces such as fabrics, dishes, countertops, dentures and the like; oxidation of oxidizable compounds in solution, dye transfer inhibition in the laundering of fabrics; and further in the bleaching of pulp and paper products. | 08-19-2010 |
20110092358 | VULCANIZATION-ACCELERATING MIXTURE - The present invention relates to a mixture which can be used as vulcanization accelerator, to a process for producing the mixture and to use of the mixture, to vulcanizates which comprise the said mixtures or which comprise corresponding individual constituents of the mixture, and also to vulcanizates which are produced with use of the said mixture. | 04-21-2011 |
20110111950 | Polydispersity-Controlled Isoolefin Polymerization With Polymorphogenates - The disclosure provides for a process and polymerization system to produce isoolefin polymers ( | 05-12-2011 |
20120065054 | Catalyst Systems and Polymerization Processes - A method of polymerizing olefins with catalyst systems, such as, for example, a multimodal catalyst system, wherein the catalyst system is stored at a controlled temperature to minimize loss of catalyst system productivity. | 03-15-2012 |
20120277092 | Catalyst Compositions And Methods Of Making And Using The Same - Catalyst compositions for the polymerization of olefins having improved flowability properties are provided. | 11-01-2012 |
20120302434 | SIX-MEMBERED N-HETEROCYCLIC CARBENE-BASED CATALYSTS FOR ASYMMETRIC REACTIONS - The present invention provides a catalyst complex or ligand, and compositions thereof, for use in a variety of organic reactions having high reactivity and enantioselectivity. The catalyst is a N-heterocyclic carbene having three fused rings with first and second rings being six-membered rings and the third being a five-membered ring. The first ring is fused to the second and has four substituents. The second ring has two nitrogens flanking a carbene atom with one nitrogen bound to a substituent. The carbene atom may optionally be bonded to a metal. The third ring is fused to the second ring and contains two nitrogens. The third ring of the catalyst has a double bond and two substituents on adjacent non-fused carbons. A non-fused nitrogen of the third ring is partially bonded to another substituent. Methods for the synthesis and use of the catalyst embodiments of the present invention are also provided. | 11-29-2012 |
20120316057 | OLEFIN METATHESIS CATALYST CONTAINING TUNGSTEN FLUORINE BONDS - A catalyst for the metathesis of olefins in general and specifically for the production of propylene from ethylene and butylene has been developed. The catalyst comprises a tungsten metal compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH | 12-13-2012 |
20130337997 | CYCLIC COMPOUND, ITS METAL COMPLEX AND MODIFIED METAL COMPLEX - A compound represented by formula (1): | 12-19-2013 |
20140005036 | FUNCTIONAL N-HETEROCYCLES FOR SOLID-SUPPORTED CATALYSIS | 01-02-2014 |
20140106960 | Z-SELECTIVE OLEFIN METATHESIS CATALYSTS AND THEIR SYNTHETIC PROCEDURE - The invention relates to C—H activated olefin metathesis catalyst compounds, the preparation of such compounds, and the use of such catalysts in the metathesis of olefins and olefin compounds, more particularly, the use of such catalysts in Z selective olefin metathesis reactions. In general, the catalyst compounds of the invention comprise a Group 8 metal (M), an alkylidene moiety (═CR | 04-17-2014 |
20140357478 | NOVEL OLEFIN METATHESIS CATALYSTS - The present invention refers to novel ruthenium- and osmium-based catalysts for olefin metathesis reactions, particularly to catalysts having stereoselective properties. Z-selectivity is obtained by utilising two mono-anionic ligands of very different steric requirement. In olefin metathesis reactions these catalysts selectively provide the Z-isomer of disubstituted olefinic products. | 12-04-2014 |
20140371056 | Iron(III) Containing Complex and Condensation Reaction Catalysts, Methods for Preparing the Catalysts, and Compositions Containing the Catalysts - A composition is capable of curing via condensation reaction. The composition uses a new condensation reaction catalyst. The new condensation reaction catalyst is used to replace conventional tin catalysts. The composition can react to form a gum, gel, rubber, or resin. | 12-18-2014 |
20150065339 | METAL OXIDE-ORGANIC HYBRID MATERIALS FOR HETEROGENEOUS CATALYSIS AND METHODS OF MAKING AND USING THEREOF - Catalysts prepared from abundant, cost effective metals, such as cobalt, nickel, chromium, manganese, iron, and copper, and containing one or more neutrally charged ligands (e.g., monodentate, bidentate, and/or polydentate ligands) and methods of making and using thereof are described herein. Exemplary ligands include, but are not limited to, phosphine ligands, nitrogen-based ligands, sulfur-based ligands, and/or arsenic-based ligands. In some embodiments, the catalyst is a cobalt-based catalyst or a nickel-based catalyst. The catalysts described herein are stable and active at neutral pH and in a wide range of buffers that are both weak and strong proton acceptors. While its activity is slightly lower than state of the art cobalt-based water oxidation catalysts under some conditions, it is capable of sustaining electrolysis at high applied potentials without a significant degradation in catalytic current. This enhanced robustness gives it an advantage in industrial and large-scale water electrolysis schemes. | 03-05-2015 |
20150299234 | COMPLEXES OF PHOSPHINE LIGANDS COMPRISING A CARBA-CLOSO-DODECABORATE SUBSTITUENT - This invention relates to complexes comprising phosphine ligands comprising a carbo-closo-dodecaborate substituent and transition metals as well as their use in catalytic reactions. | 10-22-2015 |
502156000 | Including alcohol, phenol, or ether | 4 |
20090286672 | INTERNAL DONOR FOR OLEFIN POLYMERIZATION CATALYSTS - Disclosed are solid titanium catalyst components, catalyst systems containing solid titanium catalyst components, and methods of making solid titanium catalyst components. The solid titanium catalyst components contain an internal electron donor compound containing at least one ether group and at least one ketone group. The catalyst system can contain a solid titanium catalyst component, an organoaluminum compound, and an organosilicon compound. Also disclosed are methods of polymerizing or copolymerizing an alpha-olefin. The methods involve contacting an olefin with a catalyst system containing the solid titanium catalyst component. | 11-19-2009 |
20100190636 | PROCESSES FOR MAKING CATALYST ACTIVATORS - Processes are provided for producing activators, wherein the processes comprise use of borane compositions that are at least 95 mol % pure and trialkylsilyl halides such as R | 07-29-2010 |
20120046158 | POLYMERIZATION CATALYST COMPOSITIONS CONTAINING METALLOCENE COMPLEXES AND POLYMERS PRODUCED BY USING THE SAME - The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising:
| 02-23-2012 |
20140329665 | CATALYSTS - The present invention concerns the synthesis of dry powdered manganese complexes using spray-drying or freeze-drying methods. | 11-06-2014 |
502157000 | Alkali metal bonded to carbon | 1 |
20090042719 | Hairy polymeric nanoparticles - This invention discloses a process for synthesizing a hairy polymer particle which comprises the steps of (1) polymerizing a vinyl aromatic monomer by emulsion polymerization in an aqueous medium to produce core particles, (2) recovering the core particles from the aqueous medium, (3) dispersing the core particles in an organic solvent, (4) adding an organo-lithium compound to the dried core particles in the organic solvent to produce the hairless core initiator, and (5) utilizing the hairless core initiator to initiate the anionic polymerization of a conjugated diolefin monomer in an organic solvent to produce a solution of the hairy polymer particles. The hairy polymer nanoparticles can then be recovered from the organic solvent. These hairy polymer particles are comprised of (1) a core which is comprised of a polymer of a vinyl aromatic monomer and (2) hairs which are polymer chains of a conjugated diolefin monomer, wherein the hairs are covalently bonded to the core. The core is typically spherical in shape, has a diameter of less than 1000 nm, and is comprised of a crosslinked polymer of a vinyl aromatic monomer. The hairy polymer particles of this invention are useful as fillers in rubber compositions used in making articles of manufacture, such as tires, hoses, power transmission belts, windshield wiper blades, and the like. | 02-12-2009 |