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7632775 |
Multicomponent nanoparticles formed using a dispersing agent
Disclosed are nanoparticles formed from a plurality of two or more different components. The two or more components are dispersed using a dispersing agent such that the nanoparticles have a...
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7557058 |
Catalyst composition and method for chlorinating aromatic compounds
The present invention provides a catalyst composition prepared by combining (A) at least one salt and (B) at least one organic sulfur compound. The salt includes a metal cation of a metal selected...
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7524912 |
Preparation of linear ethylene-acrylate copolymers with palladium catalysts and free radical scavengers
A polymerizable composition including a late transition metal complex, a non-polar olefin, a polar olefin, and a free radical scavenger, wherein the polymerizable composition is capable of forming...
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7482302 |
Fluorosulfonic acid compound, process for producing the same, and use thereof
The present invention provides novel fluorosulfonic acids and salts thereof having greater stability and higher acidity than conventional fluorosulfonic acids; and synthetic intermediates thereof....
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7453003 |
Direct epoxidation catalyst and process
A catalyst comprising a transition metal zeolite, a noble metal, and a thiol is disclosed. The catalyst is used in an epoxidation process comprising reacting an olefin, hydrogen, and oxygen. The...
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7425661 |
Methods for oligomerizing olefins
The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the...
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7417006 |
Catalyst system for the polymerization of olefins
A salt of formula (I)
[HE o R 1 3 ] + [T 1 T 2 ] − (I)
wherein E o is a...
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7396795 |
Low temperature preparation of supported nanoparticle catalysts having increased dispersion
Highly dispersed supported catalyst nanoparticles are manufactured at temperatures below about 95° C. The catalyst nanoparticles are formed on a support using an organic anchoring agent. The...
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7390862 |
Process for polymerizing 1-butene
A process for polymerizing 1-butene, optionally with up to 30% by mol of ethylene, propylene or an alpha olefin of formula CH 2 ═CHT wherein T is a C 3 -C 10 alkyl group, in the presence of a...
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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...
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7339021 |
Method for preparing polycarbonate resin
The present invention relates to a method for preparing polycarbonate resin, and more particularly to a method for effectively preparing polycarbonate resin having a large molecular weight in a...
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7335620 |
Photocatalytic powder, photocatalytic slurry, and polymer composition, coating agent, photocatalytic functional molded article and photocatalytic functional structure using the powder
An object of the present invention is to provide a photocatalytic powder containing titanium dioxide fine particles containing an anionically active substance, where the electrokinetic potential of...
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7307113 |
Fluorosulfonic acid organic polymers
The present invention provides for a composition and a process for forming the composition. The composition comprises an organic polymer and 0.5-40% by weight of the composition of a siloxane, the...
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7268095 |
Transition metal catalysts for (co) polymerizing of olefinic monomers
A compound of the formula Ia or Ib;
where, in the formula Ia, E 1 is O, S, Se, Te, NR, CR 2 , or PR; E 2 , E 3 are each CR, N, or P; E 4 is N, or P; E 5 is OH, SH, NHR, OR′, SR′,...
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7253133 |
Catalyst for polymerization or copolymerization of olefins, preparation and use of the same
Catalysts and catalyst systems useful for the olefin polymerization and copolymerization, and their synthesis procedure and usage are disclosed. These catalyst are a kind of novel complexes formed...
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7214640 |
Ionic material
The present invention relates to a material containing ionic groups, in particular, to the ionic materials that form an ionic pair with a free radical catalyst. Various applications of such...
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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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7160836 |
Materials comprising organic groups containing sulphur and phosphorous bonded to a mineral oxide via oxygen atoms
The invention describes materials comprising organic groups containing sulphur and phosphorous bonded together by a hydrocarbon chain and bonded via phosphorous and oxygen atoms to a mineral oxide...
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7053020 |
Catalyst systems for ethylene oligomerisation to linear alpha olefins
A catalyst system comprising:
(a) one or more bisarylimino pyridine iron or cobalt catalysts; (b) a first co-catalyst compound which is selected from aluminium alkyls, aluminoxanes, and...
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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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6998365 |
Catalysts for low-cure powder coatings and methods for using the same
Catalysts useful for low-cure powder coating compositions are disclosed, having the structure (I):
wherein R 1 is an organic radical having 6 to 25 carbon atoms; each R 2 is independently a...
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6995294 |
Method for producing bisphenol catalysts and bisphenols
This disclosure relates to a method for producing and using catalysts in the production of bisphenols, and in particular to a method for producing catalysts which contain poly-sulfur mercaptan...
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6982238 |
Supported catalyst
The invention provides a supported chromium catalyst system comprising a chromium catalyst precursor bound via at least one heteroatom to a functionalised support, said heteroatom being connected...
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6960551 |
Functionalized periodic mesoporous materials, their synthesis and use
A functionalized porous crystalline material is disclosed exhibiting an X-ray diffraction pattern with at least one peak at a position greater than about 1.8 nm d-spacing with a relative intensity...
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6951831 |
Catalyst composition for dimerizing, co-dimerizing, oligomerizing and polymerizing olefins
A catalyst composition for use in dimerizing, co-dimerizing or oligomerizing olefins comprises:
at least one zero-valent nickel complex; at least one acid with formula H + X − in which X...
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6916761 |
Polymer-supported Lewis acid catalyst
In order to provide a novel Lewis acid catalyst, which shows high reaction activity in aqueous medium, is easily recovered, and is excellent in reusability, a Lewis acid group expressed by the...
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6906153 |
Dual-site olefin polymerization catalyst composition
The invention provides a catalyst system (preferably a heterogeneous catalyst system) comprising: a transition metal bisphenolate catalyst (preferably a group 4 to 6 transition metal bisphenolate...
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6881698 |
Ion liquids derived from Lewis acid based on titanium, niobium, tantalum, tin or antimony, and uses thereof
The ionic liquids according to the invention result from the reaction of a halogenated or oxyhalogenated Lewis acid based on titanium, niobium, tantalum, tin or antimony with an organic salt of...
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6881867 |
Method for hydroformylation, xanthene-bridged ligands and catalyst comprising a complex of said ligands
In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex of a metal of transition group VIII. with at least one phosphorus-, arsenic- or...
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6878662 |
Polymerization catalyst system, polymerization process and polymer therefrom
The invention provides olefin(s) polymerization catalyst compositions that include at least one tridentate ligand coordinated to the transition metal by one datively bonded heteroatom and two...
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6872678 |
Process for activating a catalyst containing an S-containing additive
The present invention pertains to a process for activating a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
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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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6809053 |
Method for reactivating sulfonated resin catalyst
A sulfonated resin catalyst whose activity has lowered as a result of use in the polymerization of silicone oil is reactivated by washing the catalyst with a low molecular weight siloxane medium,...
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6806223 |
Single oxygen catalysts including condensed carbon molecules
The present invention relates to novel singlet oxygen catalysts useful for the production of specialty chemicals. The catalysts include a core material selected from amine coated polymeric beads,...
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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...
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6797664 |
Sulphured-metallic coordinated complexes in polyadditive catalysis
A catalyst system and a method for preparing polymers using the catalyst system is provided. The catalyst system includes a complex represented by the formula: [ML y (HSR) ñ ] n , wherein M is a...
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6794329 |
Catalyst activator
A two component catalyst activator comprises: 1) a Lewis acidic organoboron (or an orgonoaluminum) component; and 2) a component defined by the formula AOSO 2 R wherein A is a pseudo cationic...
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6770771 |
Polymerization of olefins
Various olefins may be polymerized using a catalyst systems containing selected α-diimine, urethane or urea ligands, some of them novel, complexed to nickel, palladium or other selected transition...
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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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6730757 |
Sulfur-containing and sulfur-nitrogen-containing catalysts for polymerization of olefins and polar monomers
The inventions disclosed herein are catalyst systems comprising a complex having one of the formulas LMX 1 X 2 and LML′ and an activating cocatalyst, and use of the catalyst system in...
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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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6696382 |
Catalyst inks and method of application for direct methanol fuel cells
Inks are formulated for forming anode and cathode catalyst layers and applied to anode and cathode sides of a membrane for a direct methanol fuel cell. The inks comprise a Pt catalyst for the...
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6656869 |
Group 8-10 transition metal olefin polymerization catalysts
A composition comprising a boron or aluminum containing neutral Lewis acid and a compound of formula I or Ia: wherein R 1 and R 2 are each independently hydrocarbyl, substituted hydrocarbyl,...
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6627711 |
Transition metal donor complexes and olefin polymerization process
A process for polymerization of addition polymerizable monomers with a catalyst composition comprising a Group 4 or 5 metal bis(silane)amido complex corresponding to the formula: where the...
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6511934 |
Transition metal precursors containing sulfur ligands, and polyolefin production processes using them
A catalyst composition for the polymerization of olefins is provided, comprising a transition metal precursor containing sulfur ligands and an activating co-catalyst.
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6509291 |
Process for sulfiding a catalyst containing an S-containing additive
The present invention pertains to a process for sulfiding a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
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6506704 |
Olefin polymerization catalysts and processes for making and using same
A process for forming neutral late transition metal chelates useful as polymerization catalysts comprising contacting a bidentate ligand forming compound that is free of electron-withdrawing groups...
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6503864 |
Process for sulfiding catalyst in a column
A process for the sulfiding of a hydrodesulfurization catalyst for example in a distillation column reactor. The catalyst in the distillation column reactor is first dried using nitrogen and the...
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6492296 |
Two-step process for sulfiding a catalyst containing an S-containing additive
The present invention pertains to a process for sulfiding a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
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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...
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