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7622540 Metal carbonate initiator and method for polymerizing isocyanates using the same  
Disclosed herein is a metal enolate initiator for polymerizing isocyanates and a method for polymerizing isocyanates by anionic polymerization using the same, in which the initiator forms a cluster...
7538061 One-step production of 1,3-propanediol from ethylene oxide and syngas with a cobalt-iron catalyst  
Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a...
7169875 Organometallic compositions  
A composition suitable for use as a catalyst for the reaction of an isocyanate compound or prepolymer thereof with an alcohol to form a polyurethane comprises a mixture of (a)an organometallic...
7115540 Synthesis of aliphatic 1,3-diols utilizing reduced ligand concentration and water extraction  
This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt...
7022800 Organosiloxane compositions  
A moisture curable composition capable of cure to an elastomeric body, comprising a polymeric material having not less than two hydroxyl or hydrolyzable groups an alkoxysilane curative and a...
7001864 Catalyst composition for production of a polyurethane resin, and method for producing a polyurethane resin  
A catalyst composition for production of a polyurethane resin, which comprises a metal complex catalyst represented by the following formula (1):
6852664 Double metal cyanide catalysts for the preparation of polyether polyols  
The present invention relates to novel double metal cyanide (DMC) catalysts for the preparation of polyether polyols by a polyaddition reaction between alkylene oxides and starter compounds having...
6852865 Catalytic carbonylation of three and four membered heterocycles  
Epoxides, aziridines, thiiranes, oxetanes, lactones, lactams and analogous compounds are reacted with carbon monoxide in the presence of a catalytically effective amount of catalyst having the...
6821920 Polymerization catalysts and processes therefor  
Novel catalyst systems which comprise diimine nickel complexes comprising additional ligands selected from the group consisting of acetylacetonate, hexaflourylacetylacetonate, halogens and mixtures...
6800583 Suspension of multimetal cyanide compounds, their preparation and their use  
Catalyst suspensions for the ring-opening polymerization of alkylene oxides comprise a) at least one multimetal cyanide compound having a crystalline structure and a content of platelet-shaped...
6717018 Production of oxygenated products  
A process for producing oxygenated products from an olefinic feedstock, which process includes reacting, in a hydroformylation reaction stage, an olefin feedstock with carbon monoxide and hydrogen...
6706656 One step process for preparing a 1,3-diol  
The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence...
6693219 Epoxide stabilization of fluorophosphite-metal catalyst system in a hydroformylation process  
A process for stabilizing a fluorophosphite ligand in a hydroformylation reaction mixture having an α-olefin, hydrogen, carbon monoxide and a catalyst composition having a combination of a rhodium...
6664462 Metal complex having β-diketonate, process for production thereof, photoelectric conversion element, and photochemical cell  
A metal complex having a β-diketonate represented by the following formula (1): wherein M represents a metal atom of the VIII group, R 1 , R 2 and R 3 represent a group or an atom selected...
6555717 Catalytic dehydroxylation of diols and polyols  
Secondary alcohols, specifically diols and polyols, are dehydroxylated to the corresponding primary alcohols using a homogeneous organometallic ruthenium complex catalyst.
6509288 Polymerization catalysts  
Catalyst system suitable for preparing substantially terminally unsaturated atactic polymers or copolymers of α-olefins having a molecular weight (Mn) in the range 200-500,000. The catalyst system...
6492480 Method of polymerizing a silalkylenesiloxane  
Disclosed is a method for the preparation of a linear polysilalkylenesiloxane from four- to seven-membered cyclic silalkylenesiloxane by subjecting the cyclic silalkylenesiloxane to ring opening...
6455740 Process to separate a group 8-10 metal/phosphite ligand complex from an organic liquid  
Process to separate a group 8-10 metal/phosphite ligand complex from an organic liquid mixture, wherein the following steps are performed (1) contacting the organic liquid with a support having...
6455649 Catalyst for producing living olefin polymer and process for producing the polymer  
A catalyst comprising an organoaluminum compound and a vanadium chelate compound having the lability to cause olefins to undergo living coordination polymerization is contacted with a terminal...
6433113 Ring-opening metathesis polymerization (ROMP) of cyclo-olefins with molybdenum catalysts  
A polymerization system for ring opening polymerization of cycloolefins, comprising a catalyst [MoOX 2 L 2 ], a Lewis acid as co-catalyst, and a chain-transfer agent, wherein (1) both X groups...
6372879 Polyester polycondensation with catalyst and a catalyst enhancer  
The present invention is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic...
6335304 Metal salts of phosphoric acid esters as cross linking catalysts  
A metal (M) alkyl acid phosphate catalyst for the reaction of an epoxy compound with a carboxyl compound to provide a coating formulation that is stable at room temperature; that is humidity...
6258925 Polyester polycondensation with titanyl oxalate catalyst and a catalyst enhancer  
The present invention is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic...
6075102 Polymerization catalyst and process for producing polymers  
The present invention provides a polymerization catalyst comprising (a) a specific transition metal compound, (b) (i) a compound which can form a complex by reaction with the transition metal...
6037507 Oxidation process of branched aliphatic hydrocarbons and process for producing the oxide  
A non-cyclic branched aliphatic hydrocarbon (e.g., isobutane) is oxidized with oxygen in the presence of an oxidation catalyst comprising an imide compound of the following formula (1) (e.g.,...
5958197 Catalysts for gas diffusion electrodes  
A gas diffusion electrode comprising an electrically conductive web provided on at least one side thereof with a coating containing a rhodium--rhodium oxide catalyst on a carbon black support and a...
5929289 Stabilization of phosphite ligands in hydroformylation process  
The present invention provides a hydroformylation process comprising: (1) forming a reaction mixture containing: (a) an olefinic compound, (b) hydrogen, (c) carbon monoxide, (d) a phosphite in...
5916432 Process for dispersing transition metal catalytic particles in heavy oil  
A transition metal salt, preferably ammonium heptamolybdate, is dissolved in water to provide a solution containing the dispersed catalyst precursor. The solution is atomized by passing it through...
5900521 Catalysts for converting methane or purified natural gas, preparation thereof, and process for preparation of ethylene using the catalysts  
Catalysts for preparing ethylene by conversion of methane or purified natural gas and preparation thereof, and process for preparation of ethylene by direct conversion of methane or purified...
5847204 Process for producing an iridium solution and use of same as catalyst  
An iridium-based solution is prepared by contacting components in a liquid phase containing (a) a carbonylated iridium compound, (b) hydriodic acid, a precursor of such an acid, or mixture thereof,...
5789333 Catalyst system comprising a first catalyst system tethered to a supported catalyst  
The present invention provides new catalyst formats which comprise a supported catalyst tethered to a second and different catalyst by a suitable tethering ligand. A preferred system comprises a...
5759941 Process for the preparation of dialkyltin dialkoxide from alkyl carbamate and alcohol  
A process for making a catalyst product which comprises reacting dialkyltin oxide with an alcohol and the corresponding alkyl carbamate at a temperature in the range between about 160 to 190° C....
5696046 Cold sterilant solution  
A sterilant-disinfectant solution which may be used in the cleaning of metallic objects, particularly medical instruments. Medical instruments, which may include brass, copper, aluminium, stainless...
5625107 Catalyst for conversion of methane to ethylene, preparation thereof, and process for manufacturing ethylene using said catalyst  
The present invention relates to a new catalyst for converting methane into ethane, preparation thereof, and process for manufacturing ethylene using said catalyst. The conversion reaction catalyst...
5623047 Catalytic compositions for the preparation of poly(ethylene terephthalate) with improved color  
A catalyst composition for use in a polycondensation reaction for making poly(ethylene terephthalate) from terephthalic acid comprising: (a) an antimony salt catalyst present in a range from about...
5608032 Catalytic compositions for the proparation of poly(ethylene terephthalate) with attenuated yellow color  
A catalyst composition for use in a polycondensation reaction for making poly(ethylene terephthalate) from terephthalic acid comprising: (a) an antimony salt catalyst present in a range from about...
5593932 Process for sweetening a sour hydrocarbon fraction using a mixture of a supported metal chelate and a solid base  
A catalytic mixture of discrete solid materials and a mercaptan oxidation process for using the catalytic mixture have been developed. The catalytic mixture comprises a metal chelate dispersed on a...
5561094 Dialkyl isocyanato tin alcoholate catalysts and dimers thereof  
A process for making a dialkyl carbonate which comprises reacting urea with a first alcohol in a carbamate reactor at a temperature and pressure sufficient to convert said urea to an alkyl...
5561231 Homogeneous hydrosilylation catalysts  
Transition metal-containing organosiloxanes of at least three organosiloxane units, comprising at least one transition metal complex, chemically bonded via ligands selected from among amino,...
5545600 Process for the preparation of dialkyltin dialkoxide  
A process for making a catalyst product which comprises reacting dialkyltin oxide with an alcohol and the corresponding dialkyl carbonate at a temperature in the range between about 50° to 200°...
5519108 Catalytic compositions containing tetrabutyl titanate and a mixture of cocatalysts for the preparation of poly(butylene terephthalate)  
A catalyst composition for use in the preparation of poly(butylene terephthalate) from dimethyl terephthalate, comprising: (a) a titanium compound primary catalyst, from about 0.0005 PHR to about 5...
5516879 Catalytic compositions for the preparation of poly(butylene terephthalate)  
A catalyst composition for use in the preparation of poly(butylene terephthalate) from dimethyl terephthalate, comprising: (a) a titanium compound primary catalyst, from about 0.01 PHR to about 1...
5491266 Asymmetric syntheses  
This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically...
5449653 Catalysts and processes useful in producing 1,3-diols and/or 3-hydroxyaldehydes  
A process for producing a 1,3-diol, e.g., 1,3-propanediol, and/or a 3-hydroxyaldehyde, e.g., 3-hydroxypropionaldehyde, is disclosed which comprises contacting a combination of an epoxide, carbon...
5286372 Process for sweetening a sour hydrocarbon fraction using a solid base  
A process for treating a hydrocarbon fraction which contains mercaptans has been developed. The process uses a novel catalyst which is composed of a metal chelate dispersed on a basic support which...
5272124 Ethylene polymerization catalyst comprising a nickel compound and an aromatic carboxylic acid compound  
Olefins are polymerized with a catalyst system composition comprising a nickel compound and an aromatic carboxylic acid wherein there is an atom linkage between the aromatic moiety and the...
5232887 Catalyst for sweetening a sour hydrocarbon fraction  
A catalyst has been developed. The catalyst is a metal chelate dispersed on a basic support which is either a solid solution of metal oxides or a layered double hydroxide (LDH). The process...
5225387 Catalysts for producing 1,3-diols and/or 3-hydroxyaldehydes, and processes for making and using same  
A process for producing a 1,3-diol, e.g., 1,3-propanediol, or a 3-hydroxyaldehyde is disclosed which comprises contacting a combination of an epoxide, carbon monoxide and hydrogen in the present of...
5210318 Catalysts and processes useful in producing 1,3-diols and/or 3-hydroxyldehydes  
A process for producing a 1,3-diol, e.g., 1,3-propanediol, and/or a 3-hydroxyaldehyde, e.g., 3-hydroxypropionaldehyde, is disclosed which comprises contacting a combination of an epoxide, carbon...
5182246 Catalyst for hydrogenation, dehydrosilylation or hydrosilylation and use thereof  
A catalyst for hydrogenation, dehydrosilylation of ketones, or hydrosililation of dienes or acetylenes, comprising a complex represented the the formula: A + [M 2 H(C)) 10 ] - wherein A + ...
Matches 1 - 50 out of 248 1 2 3 4 5 >