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| Number | Title | Issue Date |
| 8106248 | Conversion of co-fed methane and hydrocarbon feedstocks into higher value hydrocarbons In one aspect, the inventive process comprises a process for pyrolyzing a hydrocarbon feedstock containing nonvolatiles in a regenerative pyrolysis reactor system. The process comprises: (a) heating the nonvolatile-containing hydrocarbon feedstock upstream of a rege... | 01/31/2012 |
| 7820868 | Transition metal substituted polyoxometalates and process for their preparation This invention relates to polyoxometalates represented by the formula (An)m+[My(H2O)pXzZ2W18O66]m−1 or solvates thereof, wherein A represents a cation act... | 10/26/2010 |
| 7560606 | Titanium oxide and alumina alkali metal compositions The invention relates to Group 1 metal/porous metal oxide compositions comprising porous metal oxide selected from porous titanium oxide and porous alumina and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0 and ... | 07/14/2009 |
| 7518025 | Process for producing alkyl aromatic compound A process is provided for producing an alkyl aromatic compound having substituents at the 3- and 5-positions by alkylating an aromatic compound having two substituents in the meta positions with an olefin having 2 to 4 carbon atoms in the presence of a Broensted aci... | 04/14/2009 |
| 7405336 | Promoters for controlling acidity and pore size of zeolite catalysts for use in alkylation A metal-modified alkylation catalyst including a metalizeolite is provided where the metal is one or two selected from the group consisting of yttrium and a rare earth of the lanthanide series other than cerium. Where two metals are used, one may be Ce or La. The me... | 07/29/2008 |
| 7402707 | Method of preparation of a precursor oligocene The synthesis of a precursor oligocene, particularly pentacene, is a two-step process. In the first step the Diels-Alder adduct of the a,b-dihydro-a,b-etheno-oligocene with a 1,1-dialkoxy-cyclopentadiene is formed. In the second step this Diels-Alder adduct is conve... | 07/22/2008 |
| 7312331 | Stable cyclic (alkyl)(amino) carbenes as ligands for transition metal catalysts Stable carbene ligands are provided having a carbene center flanked by a quaternary carbon and an amino group, and having utility in the preparation of various transition metal complexes. ... | 12/25/2007 |
| 7268237 | Direct dianhydride synthesis This invention is related to a method for making diether dianhydrides by the reaction of halophthalic anhydride and a metal salt of an aromatic dihydroxy compound in the presence of a solvent and a phase transfer catalyst. Typical phase transfer catalyst include gua... | 09/11/2007 |
| 7199274 | Preparation of substituted indenes The present invention relates to a simple process for preparing specifically substituted indenes of the formula (I) or (Ia) to compounds of the formula (II) serving as starting materials ... | 04/03/2007 |
| 7105707 | Process for preparing alkynyl-substituted aromatic and heterocyclic compounds Mono- and disubstituted aryl or heterocyclic acetylenes are produced by a process comprising reacting an aryl nitrile with an alkynylzinc compound, a bis-alkynylzinc compound, or an alkynylmagnesium compound, in the presence of a nickel/phosphine catalyst. ... | 09/12/2006 |
| 7057074 | Bisphenylene-spirobifluorene compounds, method for synthesizing the same, and electroluminescence material and device having the same Provided are bisphenylene-spirobifluorene compounds, a method for synthesizing the same, and EL material and device having the same. The bisphenylene-spirobifluorene compound is defined by the following formula: ... | 06/06/2006 |
| 7038103 | Solution phase biopolymer synthesis Multifunctional liquid phase carriers (LPCs) and methods of using LPCs for the preparation of biopolymers are provided. The LPCs are highly symmetrical compounds that possess more than two points of attachment for biopolymer synthesis. The LPCs have the formula Sp(X... | 05/02/2006 |
| 6943275 | Process of preparing a disubstituted 9-alkylidenefluorene or a derivative thereof The invention relates to a process of preparing disubstituted 9-alkylidenefluorenes and structure analogous compounds, to novel compounds and intermediates prepared by this process, their use for the preparation of conjugated polymers and copolymers thereof, and to ... | 09/13/2005 |
| 6937940 | Method of superposing molecular structures of compounds With compounds for drugs, agricultural chemicals, etc., the invention provides a novel method for superposing molecular structures of those compounds. A method for superposing molecular structures of compounds characterized in that, upon superposing the molecular st... | 08/30/2005 |
| 6878264 | Process for conversion of organic compounds A process for conversion of organic compounds including contacting a catalyst formed from a CFI-type zeolite including an atomic ratio of silicon to a heteroatom of 45 or less, and long axes of crystals of 0.7 μm or less with the organic compounds. ... | 04/12/2005 |
| 6656737 | Isocynate derivatizing agent and methods of production and use An organic compound useful for detecting the total quantity of isocyanate in an environmental sample is provided. The compound is 9-anthrcenylmethyl-1-piperazinecarboxylate (PAC), an isocyanate derivatizing agent. A process for producing PAC and methods f... | 12/02/2003 |
| 6504069 | Process for producing dimethyltetralin 5-Tolyl-pent-2-ene is cyclized in liquid phase in the present of an aliphatic hydrocarbon to produce the corresponding dimethyltetralin. The use of the aliphatic hydrocarbon effectively prevents a side reaction such as dimerization of 5-tolyl-pent-2-ene t... | 01/07/2003 |
| 6469224 | Process for preparation of substituted aromatic compound A substituted aromatic compound substituted with Q is obtained by reacting a phosphazenium compound represented by formula (1) ##STR1## (in the formula, Q- represents an anion in a form derived by elimination of a proton from an inorganic acid,... | 10/22/2002 |
| 6406297 | Salicylamide-lanthanide complexes for use as luminescent markers The present invention provides luminescent lanthanide metal chelates comprising a metal ion of the lanthanide series and a complexing agent comprising at least one salicylamidyl moiety. Also provided are probes incorporating the salicylamidyl ligands of t... | 06/18/2002 |
| 6281378 | Vanadium-containing catalysts, process for manufacturing and use of the same Vanadium-containing catalysts are obtained by using polyvanadic acid as a source of vanadium. Vanadium-containing catalysts are obtained by mixing catalyst components other than vanadium, or their precursors, with a polyvanadic acid sol which is formed by... | 08/28/2001 |
| 6248848 | Optically active phosphine derivative having at least two vinyl groups, polymer produced using the same as monomer, and transition metal complexes of these A 2'-diarylphosphino-1,1'-biphenylen-2-yloxy(6,6'-divinyl-1,1'-binaphthalene -2,2'-diyloxy)phosphine derivative is disclosed, which is represented by general formula (I): ##STR1## wherein Ar is an optionally substituted phenyl or naphthyl; R1 | 06/19/2001 |
| 6127583 | Process for preparing acetylene derivative from a ketone compound A preparation process of an acetylene derivative comprising reacting a compound having a skeleton represented by the formula (1): ##STR1## in the molecular formula with a compound represented by the formula (2): ##STR2## wherein R1, R... | 10/03/2000 |
| 5997730 | Siliconized acid-treated zeolite containing zinc and boron used as a catalyst for converting hydrocarbons and method of making such catalyst A novel catalyst for the conversion of hydrocarbons comprising a material containing an acid treated zeolite, a boron component and a zinc component wherein the material is treated with a silylating agent. A method of making such novel catalyst and the us... | 12/07/1999 |
| 5998686 | Process for producing aromatic compounds from aliphatic hydrocarbons A dehydrocyclo-oligomerization process is provided for converting aliphatic hydrocarbons to aromatics by contacting the feedstock under conversion conditions which a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first zeolit... | 12/07/1999 |
| 5942104 | Alumina source for non-zeolitic molecular sieves This invention provides a method for preparing non-zeolitic molecular sieves using inexpensive reagents and at lower manufacturing cost. The method includes using a low density, small size particulate hydrated alumina, such as aluminum hydroxide, in place... | 08/24/1999 |
| 5936097 | 4,9-ethano-benzo(F)isoindole derivatives as farnesyl transferase inhibitors Novel products of formula (I): ##STR1## preparation thereof and pharmaceutical compositions containing said products are disclosed. In formula (I), R is a group of formula --(CH2)m --X1 --(CH2)n ... | 08/10/1999 |
| 5877362 | Method for producing diphenylmethane A method for producing diphenylmethane from 1,1-diphenylethane with a high yield and selectivity, wherein the 1,1-diphenylethane is reacted with hydrogen and/or water.... | 03/02/1999 |
| 5874642 | Bis ethers containing a 2,2'-biaryl radical and a process for their preparation The present invention relates to compounds of the formula (I) ##STR1## in which R1, R2 and R3 are identical or different and, independently of one another, are hydrogen, an alkyl or alkoxy group having 1 to 4 carbon a... | 02/23/1999 |
| 5856608 | Hydrotreating catalyst composition and processes therefor and therewith A catalyst composition and a process for converting a C9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C6 to C8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises a zeoli... | 01/05/1999 |
| 5776719 | Diagnostic compositions and devices utilizing same A dry chemistry dye indicator composition provides improved shelf life, stable color indication end point and capability for a system at near normal pH. The novel dry chemistry dye indication system comprises 3-Methyl-6-(sodium sulfonate)-benzothiazolinon... | 07/07/1998 |
| 5648548 | Optically active asymmetric diphosphine and process for producing optically active substance in its presence An optically active 2-diphenylphosphinomethyl-2'-diphenylphosphinyl-1,1'-binaphthalene derivative represented by the following general formula (I) ##STR1## wherein R represents a phenyl group, a tolyl group, an anisyl group or a chlorophenyl gro... | 07/15/1997 |
| 5574199 | Para-selective aromatization process with ex situ selectivated zeolite catalyst A process for shape selective hydrocarbon aromatization that involves contacting a hydrocarbon feedstream, under aromatization conditions, with a catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ... | 11/12/1996 |
| 5552035 | Zeolite aggregates and catalysts A process for producing zeolite aggregates involves providing a formable paste composed of zeolite, a binder composed of an organic/metal oxide containing aluminum, a peptizing agent and water; forming the paste into an aggregate, preferably by extruding ... | 09/03/1996 |
| 5512267 | Zeolite CIT-1 A zeolite composition CIT-1 is provided, the composition having a mole ratio greater than about 20:1 of a first oxide selected from silicon oxide, germanium oxide, or mixtures thereof to a second oxide comprising boron oxide; which zeolite composition has... | 04/30/1996 |
| 5489724 | High pressure drop endothermic process Aliphatic feeds are converted to olefins and/or aromatics in a multi pressure reactor system. A high pressure first stage reactor generates much or all of the hydrogen needed to reduce catalyst coking in lower pressure downstream reactors. High pressure o... | 02/06/1996 |
| 5463156 | Method and apparatus for dehydrogenation There is disclosed a method and apparatus for removing inhibiting substances produced in a dehydrogenation aromatization of poly cyclic compounds, the removal and consequent refinement of the reaction products occurring within the reaction system itself. ... | 10/31/1995 |
| 5396007 | Process for production of dimethylnaphthalene A process for producing dimethylnaphthalene by the dehydrogenation of dimethyl-tetrahydronaphthalene which comprises carrying out the dehydrogenation reaction in a gaseous state at a temperature of 200° to 350° C. in the presence of a diluting medium an... | 03/07/1995 |
| 5354932 | Catalytic hydrocarbon conversion using thermally activated hydrotalcite-type clays A catalytic process for the conversion of hydrocarbons is described. Catalyst in this improved process is made by thermally activating a hydrotalcite-type clay of formula: M2+2x M3+2 (OH)4x+4 An-... | 10/11/1994 |
| 5334754 | Process for preparing 2,5-diphenylterephthalic acid by oxidation Provided is a process for preparing 2,5-diphenylterephthalic acid, which is useful in preparing certain polyesters, especially liquid-crystalline polyesters. In this process, p-xylene is di-alkylated with cyclohexene to provide 2,5-dicyclo-hexyl-p-xylene,... | 08/02/1994 |
| 5321175 | Olefin hydrogenation procedure Procedure of olefin hydrogenation in liquid phase in the presence of homogeneous catalysts that contain, as essential component, a titanocene of general formula Cp CpTiR2, Cp CpTiR2, Cp Cp[CpTiR2 ]2, or Cp Cp[Cp... | 06/14/1994 |
