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7612014 |
Halide free precurors for catalysts
The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates....
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7605106 |
Telomerization of dienes
Alkadienes may be telomerized in the presence of a heterogeneous catalyst comprising an alumina or titania support which is modified with one or more ionic complexes of Pd or Pt and activated at a...
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7566679 |
Cocatalyst for the production of linear alpha-olefins
The invention relates to a homogeneous catalyst for the production of linear alpha-olefins by oligomerisation of ethylene, consisting of a zirconium salt of organic acids and a cocatalyst which...
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7361624 |
Catalyst for hydrotreating gas oil, process for producing the same, and method for hydrotreating gas oil
A catalyst for hydrotreating gas oil, which comprises an inorganic oxide support having provided thereon: at least one selected from metals in the Group 6 of the periodic table at from 10 to 30% by...
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7354880 |
Catalyst composition and methods for its preparation and use in a polymerization process
The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a carboxylate metal salt. The invention is also directed to...
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7208642 |
Process for preparation of formate esters or methanol and catalyst therefor
A production process and a catalyst are provided, which can be less decreased in activity of the catalyst even when CO 2 , water and the like are present in the starting material and/or the...
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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...
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7157399 |
Amine organoborane complex initiated polymerizable compositions containing siloxane polymerizable components
In one embodiment the invention is a polymerizable composition comprising a) an organoborane amine complex; b) one or more of monomers, oligomers or polymers having olefinic unsaturation which is...
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7153806 |
Encapsulated oxo-bridged organometallic cluster catalyst and a process for the preparation thereof
The present invention relates to a novel encapsulated organometallic cluster complex catalyst and to a process for the preparation thereof. The oxo-bridged organometallic cluster complex of the...
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7148302 |
Catalyst for polymerization of norbornene
This invention is based upon the discovery that a catalyst system which is comprised of (a) palladium or a palladium compound and (b) a fluorinated alcohol is effective for polymerizing...
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7148176 |
Production of novel phosphane ligands and use in catalytical reactions
The present invention is directed to phosphine ligands and the use of such ligands in catalytic complexes with transition metals. The catalysts may be used in a variety of reactions and are...
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7135427 |
Carboxy-modified aluminum-based catalyst compositions
A carboxy-modified aluminum-based catalyst composition is of the general formula P(O)(OAlR′R″) 3 or RP(O)(OAlR′R″) 2 wherein O represents oxygen, P represents pentavalent phosphorous, Al...
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7122611 |
Catalyst for polymerization of norbornene
This invention is based upon the discovery that a catalyst system which is comprised of (a) palladium or a palladium compound and (b) a fluorinated alcohol is effective for polymerizing...
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7119236 |
Method of preparing alkoxylation catalysts and their use in alkoxylation processes
A process for preparing an alkoxylation catalyst suitable for alkoxylating compounds that includes mixing a calcium-containing compound in a dispersing medium having a boiling point less that 160°...
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7094849 |
Bulk polymerization process for producing polydienes
A method of producing cis-1,4-polydienes, the method comprising the step of contacting conjugated diene monomer with a lanthanide-based catalyst system in the presence of less than 20% by weight of...
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7087549 |
Calcium-based catalyst system
This invention reveals a catalyst system for use in isothermal polymerizations which consists essentially of (a) an organolithium compound, (b) a calcium alkoxide and (c) a lithium alkoxide. The...
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7081428 |
Carboxylate-containing photocatalytic body, manufacture and use thereof
Supported photooxidation catalysts containing a metal oxide or metal ion as catalyst which is fixed to the support by means of carboxylate moieties are an alternative to existing such catalysts,...
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7057006 |
Stable aqueous solutions comprising titanium and zinc and process therewith
A composition that can be used as catalyst in esterification, transesterification or polycondensation is disclosed, which comprises a stable solution comprising (a) titanium in the form of a...
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7049265 |
Organic anion catalyst system for foams
Disclosed herein are compositions useful for introducing metal carboxylate salts as catalysts into systems useful for producing polyurethane and polyisocyanurate foams. The methods permit the...
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7045005 |
Ceramics dispersion liquid, method for producing the same, and hydrophilic coating agent using the same
A ceramics dispersion liquid is provided. The dispersion liquid may form an applied film easily recovering hydrophilic properties with light irradiation even when contaminated by lipophilic...
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7026266 |
Catalytic formulation and its preparation
A hetergeneous catalyst includes a solid support having deposited thereon a catalyticaly active material, which is substantially insoluble in organic and aqueous liquid media. The insoluble...
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7008899 |
Lanthanide-based catalyst composition for producing cis-1,4-polydienes
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a lanthanide compound, (b) an organoaluminum hydride, and (c) a tin halide compound.
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6953765 |
Double metal cyanide catalysts for preparing polyether polyols
The invention is directed to a double-metal cyanide catalyst for the preparation of a polyether polyol by the polyaddition of an alkylene oxideon to a starter compound containing active hydrogen...
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6919293 |
Double metal cyanide catalysts for producing polyether polyols
This invention relates to novel double metal cyanide (DMC) catalysts for the production of polyether polyols by polyaddition of alkylene oxides onto starter compound comprising active hydrogen...
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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...
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6900155 |
Titanium catalysts, preparation and use in co- and ter-polymerization of alpha-olefins
Titanium complex having general formula (I) (RCOO) n TiX p wherein R is a monofunctional hydrocarbyl radical having from 1 to 20 carbon atoms and a number of halogen atoms, selected from fluorine,...
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6894172 |
Chiral cheating agent and chiral catalyst
Chiral chelating agents and chiral catalysts, which are formed from the chiral chelating agents and metal, are described. One chiral chelating agent has a general formula (1) as illustrated below:...
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6867161 |
Titanium catalyst and organotitanium reacting reagent, production thereof, and reaction thereby
A titanium catalyst for reaction between a compound having a carbon-carbon unsaturated bond and a compound having an electrophilic functional group or an electrophilic reagent, said titanium...
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6861386 |
Accelerator for metathesis catalyst
A polymerizable composition including a resin system comprising oligomers or polymers functionalized with groups curable by ring opening metathesis polymerization, a metathesis catalyst, and a...
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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...
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6844287 |
Supported catalysts for the fixation of carbon dioxide into aliphatic polycarbonates and a process for preparing the same
The present invention provides a process for preparing supported zinc dicarboxylate catalysts with high activity for the copolymerization of carbon dioxide and epoxides by supporting zinc...
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6825149 |
Highly selective shell impregnated catalyst of improved space time yield for production of vinyl acetate
A shell impregnated catalyst of Pd-Au produced on a silica support to have a Pd loading of 1.8 g/L of catalyst to about 7.2 g/L and a Au to Pd weight ratio of 0.3 to 2.0 by impregnating the support...
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6825148 |
Nickel-containing ethylene oligomerization catalyst and use thereof
A process for the oligomerization of ethylene to a mixture of olefinic products having high linearity is provided, by using a catalyst comprising a reaction product of a simple divalent nickel...
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6794525 |
Optically active chiral diphosphine ligands
An (R) or (S) chiral diphosphine of formula (I): wherein R and R1, which can be identical or different, represent an optionally saturated C 1-10 alkyl group, an optionally saturated C 3-9 ...
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6780948 |
Synthesis of polyisoprene with neodymium catalyst
The neodymium catalyst system prepared by the technique of this invention can be used in the polymerization of isoprene monomer into polyisoprene rubber that is clear (transparent) and of high...
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6774080 |
Gas treatment device comprising SMSI material and methods for making and using the same
A gas treatment device, comprises a substrate disposed within a shell. The substrate comprises a catalyst composition comprising a support, a catalyst, and a sufficient amount of SMSI material such...
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6770773 |
Organic acid-Fe-OOH (ferroxane) particles and ferroxane-derived ceramics and ceramic membranes
The present invention relates to ferroxanes and a method of making wherein a ferroxane may be defined by the general formula [Fe(O) x (OH) y (O 2 CR) z ] n wherein x, y and z may be any integer or...
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6764977 |
Safe, free-flowing solid peroxide compositions
Safety stabilized solid, free-flowing compositions based on t-butyl peroxy maleic acid as well as processes for their preparation and use are disclosed.
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6753288 |
Oxidative carbonylation of hydroxyaromatic compounds
Organolead compounds such as tetraethyllead are useful in catalyst compositions for the oxidative carbonylation of hydroxyaromatic compounds to diaryl carbonates. They are employed in combination...
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6706908 |
Method and catalyst composition for producing aromatic carbonates
The present invention provides a method and catalyst composition for carbonylating aromatic hydroxy compounds, comprising the step of contacting at least one aromatic hydroxy compound with oxygen...
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6706657 |
Catalytic composition for dimerizing, co-dimerizing and oligomerizing olefins
A catalytic composition comprising at least one nickel compound mixed or complexed with at least one tertiary phosphine or a phosphite carrying a functional group, at least partly dissolved in a...
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6680276 |
Method for preparing a supported catalyst system and its use in a polymerization process
The present invention relates to a composition of a carboxylate metal salt in combination with a heated polymerization catalyst to improve the flowability and operability of the catalyst. The...
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6673326 |
Catalytic processes for the reduction of perfluorinated compounds and hydrofluorocarbons
A process for reducing perfluorinated compounds and/or hydrofluorocarbon compounds in a sample uses a catalyst made from aluminum oxide (Al 2 O 3 ), and one or more enhancers selected from the...
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6639087 |
Kinetic resolution method
A method for stereoselective chemical synthesis, includes the steps of: (A) reacting a nucleophile and chiral or prochiral cyclic subtrate, said substrate comprising a carbocycle or a heterocycle...
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6624215 |
Cationic electrodeposition paint composition
This invention relates to cationic electro-coating composition which comprises blending which an aqueous dispersion or an aqueous dispersion paste which contains an organic acid-modified bismuth...
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6617279 |
Catalyst composition and method for producing diaryl carbonates, using bisphosphines
Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an iodide salt,...
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6605563 |
Catalyst system and its use in olefin polymerization
A polymerization catalyst system and a method for preparing the catalyst system is disclosed. The catalyst system includes a bulky ligand metallocene catalyst compound, preferably containing a...
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6602817 |
Combination approach to chiral reagents or catalysts having amine or amino alcohol ligands
Functionalized amine derivatives are prepared by reacting an amine, a carbonyl derivative, and an organoboron compound under mild conditions. Organoboronic acids react with amines and alpha-hydroxy...
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6586542 |
Process for controlling degree of branch of high 1,4-cis polybutadiene
Disclosed is a process of controlling the degree of branch of high 1,4-cis polybutadiene without any alternation in the 1,4-cis content and the polymerization yield, in which a dialkylzinc compound...
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6566296 |
Process for preparing an additive-based mixed metal catalyst, its composition and use
The present invention pertains to a process for preparing a catalyst composition wherein at least one Group VIII non-noble metal component and at least two Group VIB metal components are combined...
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