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| Number | Title | Issue Date |
| 8114804 | Self-deagglomerating suspensions of titanium (IV) oxides and methods for making them A process for making a self-deagglomerating suspension, in particular, a suspension which self-deagglomerates to form a substantially transparent suspension, of finely divided titanium (IV) oxide particles, comprising: vigorously m... | 02/14/2012 |
| 7951745 | Catalyst for hydrocracking hydrocarbons containing polynuclear aromatic compounds Oil soluble catalysts are used to convert polynuclear aromatic compounds in a hydrocarbon feedstock to higher value mono-aromatic compounds. The catalyst complex includes a catalytic metal center that is bonded to a plurality of organic ligands that make the catalys... | 05/31/2011 |
| 7923401 | Single-site catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins Single-site catalyst activator compositions are provided, said activator compositions comprising anion/cation ion pair wherein; (a) the anion comprises a metal atom bonded via hetero atoms to a chelating organic ligand, and (b) the cation comprises a Bronsted acid. | 04/12/2011 |
| 7799725 | Catalyst for polymerization of conjugated diene and method of polymerization conjugated diene using the catalyst, rubber composition for tires, and rubber composition for golf balls A catalyst for polymerization of conjugated diene comprises (A) an yttrium compound; (B) an ionic compound including a non-coordinate anion and a cation; and (C) an organometallic compound including an element selected from the groups 2, 12 and 13 of the periodic ta... | 09/21/2010 |
| 7582585 | Coating compositions Coating compositions are provided that include a component that is a product of materials comprising an amine and an anhydride and/or an anhydride derivative. Compositions of the invention are particularly useful as an underlying antireflective coating composition (... | 09/01/2009 |
| 7456127 | Organoaluminum catalyst An organoaluminum reaction product of A.) a ligand of the formula I, wherein R1 represents an alkyl, aryl, arylalkyl, or alkylaryl group, a C3-24 silyl group, or hydrogen, R2, R3, R4, R5, R6 | 11/25/2008 |
| 7429549 | Process for improved coupling of rubbery polymers Rubbery polymers made by anionic polymerization can be coupled with tin halides or silicon halides to improve the characteristics of the rubber for use in some applications, such as fire treads. In cases where the rubbery polymer was synthesized utilizing a polar mo... | 09/30/2008 |
| 7429684 | Process for oligomerization of ethylene to linear α-olefins A process for preparing α-olefins from ethylene wherein the α-olefins are substantially free of olefins having greater than 12 carbon atoms comprises contacting ethylene under oligomerization conditions with a 2,6-bis(phenylimino) pyridyl metal halide catalyst in ... | 09/30/2008 |
| 7425520 | Catalyst for selective hydrogenation of nitro groups of halonitro aromatic compounds A supported catalyst for hydrogenating nitro groups of halonitro compounds manufactured from a support, a solvent, and one or more types of organometallic complexes. The organometallic complexes have the formula: wherein, R... | 09/16/2008 |
| 7414099 | Hindered polyalicyclic alkyl catalysts and their use in a gas-phase polymerization reactor Embodiments of the present invention include a method of polymerizing olefins comprising contacting olefins with a catalyst composition made by the process of combining a hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposi... | 08/19/2008 |
| 7399822 | Isotactic specific catalyst for direct production of highly isotactic poly (propylene oxide) or highly isotactic poly (butylene oxide) (Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content >81%, normally ... | 07/15/2008 |
| 7358209 | Polymerisation catalysts A transition metal complex having the following Formula (A): wherein the monovalent groups R1 and R2 are —Ra, —ORb, —NRcRd, and —NHRe: the monovalent groups Ra, Rb | 04/15/2008 |
| 7329703 | Polymerized macrocyclic oligomer nanocomposite compositions The invention relates to polymers derived from macrocyclic oligomers containing organo clay fillers comprising a) a polymer derived from a macrocyclic oligomer; b) clay platelets; and c) the residue of one or more onium compounds having at least one ligand with a C | 02/12/2008 |
| 7321037 | Photosensitizer dye A photosensitizer dye is provided. The photosensitizer dye contains a Ru complex represented by the following formula (1): wherein Y1 and Y2 independently represent hydrogen atom (H), lithiu... | 01/22/2008 |
| 7314844 | Process for the cyanation aldehydes A process for cyanating an aldehyde is provided. The process comprises reacting the aldehyde with: i) a cyanide source which does not comprise a Si—CN bond or a C—(C═O)—CN moiety; and ii) a substrate susceptible to nucleophilic atta... | 01/01/2008 |
| 7309756 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 12/18/2007 |
| 7304159 | Ligands and catalyst systems thereof for ethylene oligomerisation to linear alpha olefins Mixed bis-imine pyridine ligands of formula (I), wherein Z1, which is different from Z2, is an optionally substituted aryl group; and Z2 comprises an optionally substituted heterohydrocarbyl moiety, or an optionally substituted aryl ... | 12/04/2007 |
| 7301025 | Colorant compounds Compounds of the formula wherein M is either (1) a metal ion having a positive charge of +p wherein p is an integer which is at least 2, said metal ion being capable of forming a compound with at least two chromo... | 11/27/2007 |
| 7288500 | Selective hydrogenation of nitro groups of halonitro aromatic compounds A supported catalyst for hydrogenating nitro groups of halonitro compounds manufactured from a support, a solvent, and a plurality of organometallic complexes. The organometallic complexes have the formula: where... | 10/30/2007 |
| 7279605 | Synthesis of cyclopentenones The invention relates to a process for the preparation, in a single step, of substituted 2-cyclopenten-1-ones by reacting a substituted enone with an aldehyde in the presence of a catalytic system. The catalytic system consists of a metal complex, such as a Ti(Cl) | 10/09/2007 |
| 7279537 | Transition metal complexes and polymerization catalysts There are provided a transition metal complex of formula (1): wherein M represents an element of Group 6 of Periodic Table of Elements, A and A′ are the same or different, and represent a substituted or unsubst... | 10/09/2007 |
| 7276463 | Polymerization catalyst for α-olefins and process for production of α-olefin polymers therewith A catalyst having a high catalyst activity, which enables the production of an α-olefin polymer improved in stereoregularity by decreasing an amorphous component, and a production method for the α-olefin polymer, are developed. Described are a catalyst for polymer... | 10/02/2007 |
| 7268250 | Process for producing optically active compound A highly efficient process is provided for producing an optically active compound having high optical purity by an asymmetric reaction using as a catalyst a transition metal complex having an optically active nitrogen-containing compound as an asymmetric ligand.... | 09/11/2007 |
| 7247687 | Late transition metal catalysts for olefin polymerization and oligomerization This invention relates to a transition metal compound represented by the formula LMX wherein M is a Group 3 to 11 metal L is a bulky bidentate or tridentate neutral ligand that is bonded to M by two or three heteroatoms and at least one heteroatom is nitrogen; X is ... | 07/24/2007 |
| 7241715 | Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/... | 07/10/2007 |
| 7241714 | Bridged bi-aromatic catalysts, complexes, and methods of using the same Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands, and methods of making and using the same, are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers... | 07/10/2007 |
| 7238764 | Process for the co-oligomerisation of ethylene and alpha olefins A process for production of higher linear alpha olefins and/or alkyl-branched alpha olefins, which comprises the co-oligomerisation of one or more alpha olefins with ethylene in the presence of a metal catalyst system employing one or more bis-aryliminepyridine MX | 07/03/2007 |
| 7223823 | Catalyst system and process This invention relates to a process of polymerizing ethylene in a reactor comprising contacting a catalyst system comprising a supported chromium catalyst and an aluminum alkyl cocatalyst, where the catalyst and cocatalyst are contacted by cofeeding the catalyst and... | 05/29/2007 |
| 7220805 | Process for producing contact product; catalyst component for addition polymerization; process for producing catalyst for addition polymerization; and process for producing addition polymer There are provided (1) a process for producing a contact product, which comprises the step of contacting at least a phthalocyanine complex, a porphyrin complex, or their combination with a surfactant; (2) a catalyst component for addition polymerization, which compr... | 05/22/2007 |
| 7211534 | Preparation of a magnesium halide support for olefin polymerization and a catalyst composition using the same A magnesium halide support material for a polyolefin catalysts is disclosed. The magnesium halide of present invention is prepared by reacting magnesium with an alkylhalide in a non-polar hydrocarbon solvent. Preparation of the support does not require the use elect... | 05/01/2007 |
| 7208128 | Manganese-based oxidation catalyst A catalyst for the oxidation of volatile organic compounds and carbon monoxide comprising manganese and alumina, such catalyst having been impregnated with a phosphorus compound. The presence of the phosphorus compound results in a significant oxidative conversion o... | 04/24/2007 |
| 7208437 | Catalyst and method for its manufacture A catalyst is synthesized by a method in which a catalytic metal such as platinum or another noble metal is dispersed onto a support member. A transition metal macrocycle is also adsorbed onto the support, and the support is heat treated so as to at least partially ... | 04/24/2007 |
| 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 CO2, water and the like are present in the starting material and/or the reaction system, and which can produce a formic ester or a methanol... | 04/24/2007 |
| 7196032 | Fluoroalcohol leaving group for non-metallocene olefin polymerization catalysts A catalyst composition and method for olefin polymerization are provided. In one aspect, the catalyst composition is represented by the formula αaβbγgMXn wherein M is a metal; X is a halogenated aryloxy group; β and γ... | 03/27/2007 |
| 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 compound selected from: (i) a compound of formula M(RO)4, wher... | 01/30/2007 |
| 7161018 | Soluble late transition metal catalysts for olefin oligomerizations II A series of soluble α-diimine late transition metal catalysts has been invented. The catalysts demonstrate high activity and selectivity for linear α-olefins. As such, these catalysts conveniently oligomerize ethylene. Typical activators as known to those of ordin... | 01/09/2007 |
| 7151143 | Blends containing macrocyclic polyester oligomer and high molecular weight polymer The invention provides blends of macrocyclic polyester oligomer (MPO) with high-molecular-weight polymer and polymerization catalyst as friable, one-component, ready-to-polymerize materials with long shelf life. The invention also provides methods for preparation an... | 12/19/2006 |
| 7148173 | Catalytic systems for the polymerization and copolymerization of alpha-olefins Heterogeneous catalytic compositions obtained by reacting a porous inorganic support with an alumoxane and subsequently supporting at least one metallocene compound thereon. A process for polymerization of α-olefins in a slurry or in a gas phase, the process cataly... | 12/12/2006 |
| 7135428 | Catalyst solution for implementing anionic lactam polymerization, method for production thereof and polyamide moulding compound A catalyst solution for the anionic polymerization of lactones and/or lactams comprises a salt of at least one compound of the general formula I In this formula (I), R1 is H or an aliphatic, cycloaliph... | 11/14/2006 |
| 7115539 | Metal compound, and catalyst component and catalyst for addition polymerization, and process for producing addition polymer A metal compound obtained by a process comprising the step of contacting, in a specific ratio, a compound represented by the formula M1L1r, a compound represented by the formula R1s−1TH, and a compound represe... | 10/03/2006 |
