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8772523 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...
8771545 Absorbent and passivation layer for optical element comprising the same  
The present invention relates to an absorbent and a passivation layer for an optical element comprising the same, and more specifically to an absorbent that can be applied to a flexible substrate...
8575284 Aluminoxane catalyst activators derived from dialkylaluminum 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...
8501137 Process for production of an aluminum hydride compound  
A compound of formula M(AlH3OR1)y, wherein R1 is phenyl substituted by at least one of: (i) an alkoxy group having from one to six carbon atoms; and (ii) an alkyl group having from three to twelve...
8465720 Aluminum oxycarbide composition and production method therefor  
Provided is an aluminum oxycarbide composition production method capable of increasing a yield of Al4O4C while reducing a content rate of Al4C3 and achieving high productivity, and an aluminum...
8404880 Solid polymethylaluminoxane composition and method for manufacturing same  
Disclosed are: a solid polymethylaluminoxane composition which does not utilize silica or the like, has the form of relatively fine particles, has more uniform particle sizes, and exhibits a high...
8354485 Aluminoxane catalyst activators derived from dialkylaluminum 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...
8324416 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...
8287764 Coated particles  
The invention relates to coated particles comprising a core material and a shell and wherein said core material is an organic compound and wherein said shell comprises a layered double hydroxide...
7910764 Polymethylaluminoxane preparation, method of producing the same, polymerization catalyst, and polymerization method of olefins  
A polymethylaluminoxane preparation exhibiting excellent storage stability with a high yield is provided. A polymethylaluminoxane preparation is formed by thermal decomposition of an alkylaluminum...
7902390 Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins  
A composition useful for activating catalysts for olefin polymerization Is provided. The composition is derived from at least: carrier; treated organoaluminoxy compound: and ionic compound having...
7871712 Drying agent and field light emission device using the same  
A water-capturing or drying agent placed in a hermetically sealed field light emission device for maintaining stable light emission of the light emission device not susceptible to moisture and...
7662983 Modified inorganic particles and methods of preparing the same  
Disclosed are modified inorganic particles and methods of preparing the same. The modified inorganic particle comprises an inorganic particle with hydroxyl groups, and a surface modifier coupled to...
7355058 Haloaluminoxane compositions, their preparation, and their use in catalysis  
Novel haloaluminoxane compositions have been formed. The halogen is fluorine, chlorine, and/or bromine, and the amount of halogen atoms present in said composition is in the range of about 0.5 mole...
7244498 Nanoparticles modified with multiple organic acids  
Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In...
7193100 Haloaluminoxane compositions, their preparation, and their use in catalysis  
Novel haloaluminoxane compositions have been formed. The halogen is fluorine, chlorine, and/or bromine, and the amount of halogen atoms present in said composition is in the range of about 0.5 mole...
7141527 Catalyst system and process for the polymerization of olefins  
A catalyst system for the polymerization of olefins comprising the product obtained by contacting: (A) a metallocene complex;(B) an organometallic aluminium compound of formula (II):...
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 represe...
7115764 Mechanical shear based synthesis of alumoxane nanoparticles  
A method for forming carboxylate-alumoxane nanoparticles comprises subjecting a mixture comprising boehmite and carboxylic acid to mechanical shear. The method can be carried out at a temperature...
7034173 Chemical products suited for use as co-catalysts, method for the preparation thereof and their use in catalyst systems for producing polyolefins  
The invention relates to chemical products which are suited for use as co-catalysts and which can be obtained by reacting a compound of formula (I), M1R1R2(R3)m with a compound of formula (II),...
7030258 Water-capturing agent and organic EL device  
A water-capturing agent capable of inhibiting the generation and growth of a darkspot and an organic EL device including the water-capturing agent are provided. The organic EL device uses the...
7026496 Diamido alkoxides as polymerisation initiators  
The present invention relates to a complex having the formula (I) wherein M is selected from Sn(II), Sn(IV), Al(III) and Mg(II); each of R1 and R2 is independently hydrocarbyl; R3 is H or...
6933046 Releasable corrosion inhibitor compositions  
A new class of releasable corrosion inhibiting materials for protective coatings, methods of making the same, methods of using the same, and coatings containing the same are provided. The materials...
6737379 Aluminum-oxy compound, catalyst component for polymerizing olefin, and method for producing polyolefin  
Provided are an aluminium-oxy compound obtained through reaction of an organoaluminium compound with water, which is soluble in hydrocarbon solvents and in which the amount of the organoaluminium...
6713641 Reactive anthraquinone colorant compounds and polymeric materials reacted therewith  
Disclosed are blue, diol anthraquinone blue colorant compounds having excellent thermal stability and which can be reacted into or copolymerized with polyester thus providing a blue-colored...
6562991 Gelatinous compositions formed from hydroxyaluminoxane, solid compositions formed therefrom, and the use of such compositions as catalyst components  
Gelatinous compositions of matter which are useful as polymerization catalyst components and are highly stable in terms of OH-decay rate, as well as similarly stable solid compositions of matter...
6524985 Catalyst components for polymerization of olefins and use thereof  
Disclosed is a catalyst component for the polymerization of olefins, which is a compound having the following structure: wherein R1 is a hydrocarbon radical having 1 to 10 carbon atoms or a...
6518445 Methylaluminoxane compositions, enriched solutions of such compositions, and the preparation thereof  
The methylaluminoxane composition (MAOC) is a solid at 25° C. that has a total aluminum content of about 39 to 47 wt %. The MAOC is either free of aluminum as trimethylaluminum (TMA) or if TMA is ...
6413900 Metallocene stabilized alumoxane  
Stabilized alumoxane solutions are provided as well as a method for producing such solutions. The method generally involves the use of metallocene catalyst component(s) that when mixed with...
6322890 Supra-molecular alkylalumoxanes  
Heterogeneous solid supra-molecular alkylalumoxanes. A supra-molecular architecture of a nano-particle foundation on which an alkylalumoxane is built. Supra-molecular alkylalumoxanes comprise (a)...
6214760 Catalyst activator composition  
A composition comprising a mixture of aluminum containing Lewis acids said mixture corresponding to the formula: (Arf3 Al)(AlQ13)y (--AlQ2 --O--)zwhere; Arf is a fluorinated aromatic hydrocarbyl...
6207130 Metal-exchanged carboxylato-alumoxanes and process of making metal-doped alumina  
A method has been developed for the solution-based metal exchange of carboxylato-alumoxanes [Al(O)x (OH)y (O2 CR)z ]n with a wide range of metal cations. Metal-exchanged carboxylato-alumoxanes are...
6194340 Method of stabilizing hydrocarbylaluminoxanes  
A solution of a siloxy-aluminoxane composition formed by mixing (i) a hydrocarbylsiloxane substantially free of hydroxyl groups with (ii) an aluminoxane, in an organic solvent medium in which the...
6153550 Olefin polymerization catalyst based on metallocene complexes and perfluorinated oligoaryl derivatives of aluminates  
The invention relates to a catalyst composition for olefin polymerization comprising metallocene complexes and novel cocatalysts belonging to the group of perfluorinated oligoarylaluminates,...
6060418 Supported hydrocarbylsiloxy-aluminoxane catalyst compositions  
Catalysts deposited on a support are described. The catalyst itself is formed by combining (i) a metallocene of a transition, lanthanide or actinide metal and (ii) a siloxy-aluminoxane composition...
6046347 Aluminoxane synthesis employing reduced amount of trialkylaluminum compound  
A catalytically active aluminoxane can be synthesized from a precursor formed by the combination of at least one trialkylaluminum compound and at least one organoaluminum compound containing a...
6034024 Heat treated alumoxanes  
A process is described which comprises heating a methylalumoxane solution in an aromatic hydrocarbon solvent at a temperature of at least 35° C. for at least 0.5 hour in an inert, dry atmosphere ...
6013820 Alkylaluminoxane compositions and their preparation  
The reaction between an alkylaluminum compound such as trimethylaluminum and carbon dioxide or an organic carbonyl reagent such as benzoic acid or benzophenone is facilitated and accelerated by...
5902766 Alumoxanes, catalysts utilizing alumoxanes and polymers therefrom  
A catalyst which exhibits superior control of product particle size in the insertion polymerization of alpha-olefins is described as transition metal compounds which associate with non-coordinating...
5902891 Aluminoxane process and product  
An aluminoxane product is prepared by reacting water which contains a stabilizing agent, such as a lithium halide, with a hydrocarbyl aluminum compound, such as tri-methylaluminum, in an organic...
5847177 Production of hydrocarbon-soluble hydrocarbylaluminoxanes  
Novel aluminum-containing compositions having increased paraffin-solubility are produced from a methylaluminoxane composition having lower paraffin-solubility. These compositions are formed by...
5831109 Polyalkylaluminoxane compositions formed by non-hydrolytic means  
The present invention relates to a process which comprises the non-hydrolytic transformation of an aluminoxane precursor composition, comprising carbon-to-oxygen bonds which can be alkylated by an...
5777143 Hydrocarbon soluble alkylaluminoxane compositions formed by use of non-hydrolytic means  
A hydrocarbon-soluble alkylaluminoxane composition, such as, methylaluminoxane or even a modified methylaluminoxane, can be prepared by preparing an alkylaluminoxane precursor via non-hydrolytic...
5744577 Process for producing polyketones  
A process for preparing polylketones by polymerizing a mixture of carbon monoxide and one or more olefins in the presence of a group VIII metal catalyst which is prepared by reacting together: (a)...
5739368 Use of heat treated alumoxanes in preparing supported catalysts  
Alumoxane, and especially methylalumoxane, which provide supported metallocene and/or transition metal catalyst compositions having increased activity are prepared by heating the alumoxane prior to...
5731253 Hydrocarbylsilloxy - aluminoxane compositions  
Siloxy-aluminoxane compositions which are the reaction products of hydrocarbylsiloxanes substantially-free of Si--OH groups, and aluminoxanes and which have improved solubility and stability in...
5728640 Preparation of supported metallocene/aluminoxane solid catalyst  
A process for preparing a supported metallocene/aluminoxane solid catalyst comprises preparing a water-in-oil emulsion of water and an inert solvent by using an emulsifier, adding dropwise the...
5728855 Modified polyalkylaluminoxane composition formed using reagent containing carbon-oxygen double bond  
The present invention relates to a process for forming a composition comprising oligomeric alkylaluminoxane, e.g., preferably methylaluminoxane, and moieties having the structure--OC(R)3, where R...
5670682 Liquid clathrate aluminoxane compositions  
Stable liquid clathrate aluminoxane compositions are obtained by the reaction, in aromatic solvents, of aluminoxanes such as, methylaluminoxane, with organic, inorganic or organometallic compounds,...
5670589 Organoaluminoxy product, catalyst systems, preparation, and use  
In accordance with the present invention, there is provided an organoaluminoxy product prepared by the process comprising reacting an organoaluminoxane with an ene-ol compound. In another...
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