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| Number | Title | Issue Date |
| 8148553 | Catalytic conversion of cellulose to liquid hydrocarbon fuels by progressive removal of oxygen to facilitate separation processes and achieve high selectivities Described is a method to make liquid chemicals, such as functional intermediates, solvents, and liquid fuels from biomass-derived cellulose. The method is cascading; the product stream from an upstream reaction can be used as the feedstock in the next downstream rea... | 04/03/2012 |
| 8093409 | Method for producing cyclic unsaturated compound The present invention provides a method for producing a cyclic unsaturated compound, which sufficiently suppresses generation of acyclic unsaturated compounds and permits excellent yield and reaction rate. Such a method for producing a cyclic unsaturated compound is... | 01/10/2012 |
| 8084626 | Processes for the production of hydrogenated products A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth; distilling the broth under super atmospheric pressure at a temperature of >100° C. to about 300° C. to form an overhead that includes water and ammonia, a... | 12/27/2011 |
| 7511160 | Lactone derivative and its manufacturing method A lactone derivative that is expressed by the following formula (I). ... | 03/31/2009 |
| 7348442 | Gas phase synthesis of methylene lactones using catalysts derived from hydrotalcite precursors Process for converting certain lactones to their alpha-methylene substituted forms using (i) a catalyst derived from a hydrotalcite or (ii) a composite catalyst comprising the hydrotalcite-derived catalyst into which at least one of lithium, sodium, potassium, rubid... | 03/25/2008 |
| 7316884 | 5-methylene-1,3-dioxolan-4-one derivatives, process for their production, polymers of the derivatives, resist compositions, and pattern formation process A 5-methylene-1,3-dioxolan-4-one derivative and a monomer and copolymer thereof and a resist composition containing the polymer or copolymer where the 5-methylene-1,3 -dioxolan-4-one derivative is of formula (1): ... | 01/08/2008 |
| 7271299 | Two-stage method for producing butanediol with intermediated separation of succinic anhydride Optionally alkyl-substituted 1,4-butanediol is prepared from C4-dicarboxylic acids and/or of derivatives thereof by: a) a gas stream of the C4-dicarboxylic acid or the derivative thereof in a first reactor in ... | 09/18/2007 |
| RE39794 | Process for the simultaneous production of maleic anhydride and its hydrogenated derivatives A process is described for the co-production of maleic anhydride and at least one C4 compound selected from butane-1,4-diol, γ-butyrolactone, and tetrahydrofuran in which maleic anhydride is produced by partial oxidation of a hydrocarbon feedstock select... | 08/21/2007 |
| 7214641 | Catalyst and hydrogenation of carbonyl compounds in the liquid phase using the catalyst The present invention provides a process for hydrogenating carbonyl compounds, in particular C4-dicarboxylic acids to mixtures of tetrahydrofuran and gamma-butyrolactone, over supported rhenium catalysts, wherein rhenium and at least one further metal of ... | 05/08/2007 |
| 7205416 | Liquid phase synthesis of methylene lactones using novel grafted catalyst Process for converting certain lactones to their alpha-methylene substituted forms that exhibits high conversion and selectivity. ... | 04/17/2007 |
| 7199254 | Liquid phase synthesis of methylene lactones using novel catalyst Process for converting certain lactones to their alpha-methylene derivatives in the liquid phase with both high conversion and selectivity using easily recoverable novel heterogeneous catalysts. ... | 04/03/2007 |
| 7186856 | Process for preparing carboxylic acids and derivatives thereof Processes for preparing carboxylic acids and derivatives thereof in which an ammonium salt of the carboxylic acid is heated in the presence of an organic reagent to split the salt and form the acid or, where the organic reagent is an esterifying agent, the correspon... | 03/06/2007 |
| 7179776 | Ceramic dishwashing composition for inhibiting corrosion of glassware A ceramic composition is provided to protect glassware from corrosion in a dishwasher. The ceramic composition contains at least one compound which releases an active agent during washing and/or rinsing cycles of a dishwasher to protect glassware from corrosion.... | 02/20/2007 |
| 7166727 | Supercritical fluid phase synthesis of methylene lactones using novel grafted catalyst Process for converting certain lactones to their alpha-methylene substituted forms in a supercritical or near-critical fluid phase reaction using a novel grafted catalyst that not only exhibits high initial activity (conversion), but also maintains a high level of a... | 01/23/2007 |
| 7164033 | Gas phase synthesis of methylene lactones using novel catalyst Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also maintains a high level of activity with time on stream. ... | 01/16/2007 |
| 7164032 | Supercritical fluid phase synthesis of methylene lactones using novel catalyst field of invention Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also provides high reactor productivity (mass of product per mass of catalyst per unit of time) and sustained maintenanc... | 01/16/2007 |
| 7161014 | Gas phase synthesis of methylene lactones using novel grafted catalyst Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also maintains a high level of activity with time on stream. ... | 01/09/2007 |
| 7153981 | Supercritical fluid phase synthesis of methylene lactones using oxynitride catalyst Process for converting certain lactones to their alpha-methylene substituted forms in a supercritical or near-critical fluid phase reaction using an oxynitride catalyst or a composite oxynitride catalyst incorporating lithium, sodium, potassium, rubidium, cesium, ma... | 12/26/2006 |
| 7153983 | Chemo-enzymatic process for the preparation of opticaly enriched β-benzyl-γ-butyrolactones The present invention relates to a novel synthetic process for the enriched preparation of substituted R(+)β-benzyl-γ-butyrolactone (1) as shown in the drawing wherein R1 and R2 independently or in combination represent the following groups: ... | 12/26/2006 |
| 7151185 | Gas phase synthesis of methylene lactones using oxynitride catalyst Process for converting certain lactones to their alpha-methylene substituted forms using an oxynitride catalyst or a composite oxynitride catalyst incorporating lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, or barium or combinations th... | 12/19/2006 |
| 7141682 | Liquid phase synthesis of methylene lactones using oxnitride catalyst Process for converting certain lactones to their alpha-methylene derivatives in the liquid phase using oxynitride catalysts or composite catalysts incorporating dithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, or barium or combinations th... | 11/28/2006 |
| 7081457 | Cyclothiocarbamate derivatives as progesterone receptor modulators Methods of using compounds which are progesterone receptor agonists for contraception and the treatment of progesterone-related maladies alone or in combination with an estrogen receptor agonist or progesterone receptor antagonist are provided. These compounds have ... | 07/25/2006 |
| 7049459 | 1-[(4-methyl thio)phenyl]-2-(phenyl acetoxy)-1-ethanone and a process for preparing the same This invention relates to 1-[(4-methyl thio)phenyl]-2-(phenyl acetoxy)-1-ethanone. This compound is convertible into 4-(4-methyl thio phenyl)-3-phenyl-2 (5H)-furanone by an economically viable process. This substituted furanone is an intermediate or starting compoun... | 05/23/2006 |
| 6989455 | Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol In the process for the conversion of maleic acid to gamma-butyrolactone, 1.4-butanediol and/or tetrahydrofuran, a feedstream comprising maleic acid is hydrogenated in a first hydrogenation zone to produce a reaction product comprising succinic acid and unreacted hyd... | 01/24/2006 |
| RE38947 | Method of enantioselectively catalyzing a reaction A chiral catalyst is disclosed together with methods of using it for enantioselective syntheses. The chiral catalyst includes a nucleus with two metal atoms that has four bridging ligands oriented radially to the axis of the nucleus. Each of these ligands includes a... | 01/24/2006 |
| 6958404 | Method for the hydrogenation of maleic anhydride and related compounds in a fluid bed reactor C4-dicarboxylic acids or derivatives thereof are hydrogenated in the gas phase in a fluidized-bed reactor. It is possible to use catalyst compositions known per se. ... | 10/25/2005 |
| 6946563 | Production of 5-methyl-dihydro-furan-2-one from levulinic acid in supercritical media This invention relates to a process for producing 5-methyl-dihydro-furan-2-one from levulinic acid in presence of a supercritical fluid, and in presence of optionally-supported metal catalyst. ... | 09/20/2005 |
| 6831182 | Method for the hydrogenation of maleic anhydride and related compounds in two serial reaction zones The present invention relates to a process for the gas-phase hydrogenation of C4-dicarboxylic acids and/or their derivatives over a catalyst based on copper oxide to give substituted or unsubstituted γ-butyrolactone and/or tetrahydrofuran, which comprise... | 12/14/2004 |
| 6673515 | Polymer, resist composition and patterning process The invention provides a polymer comprising recurring units of formula (1--1) or (1-2) wherein k is 0 or 1, m is 0, 1, 2, 3 or 4, and n is 1 or 2 and having a weight average molecular weight of 1,000 to 500,000. A resist composition comprising the polymer... | 01/06/2004 |
| 6670300 | Textured catalysts, methods of making textured catalysts, and methods of catalyzing reactions conducted in hydrothermal conditions A textured catalyst having a hydrothermally-stable support, a metal oxide and a catalyst component is described. Methods of conducting aqueous phase reactions that are catalyzed by a textured catalyst are also described. The invention also provides method... | 12/30/2003 |
| 6617464 | Production of 5-methylbutyrolactone from levulinic acid A process for producing 5-methylbutyrolactone from levulinic acid utilizing an optionally supported metal catalyst is described. The catalyst has both a hydrogenation and a ring-closing function.... | 09/09/2003 |
| 6566539 | Catalyst regeneration by treatment with an oxidizing agent A process for the production of tetrahydrofuran, gamma butyrolactone, 1,4-butane diol and the like from a hydrogenatable precursor such as maleic acid, succinic acid, corresponding esters and their mixtures and the like in the presence of hydrogen and a n... | 05/20/2003 |
| 6552217 | Process for the preparation of alkyl 1-methylcyclopropanecarboxylate Disclosed is a 4-step process for the preparation of alkyl esters of 1-methylcyclopropanecarboxylic acid which comprises the steps of (1) converting γ-butyrolactone to -methyl-γ-butyrolactone; (2) converting the -methyl-γ-butyrolactone fr... | 04/22/2003 |
| 6515148 | Process and catalyst for the production of γ-butyrolactones Process for the catalytic preparation of γ-butyrolactone having the general formula ##STR1## by reacting an olefin with the general formula R1 CHCH2, with a carboxylic acid with a general formula R2 CH2 COOH, w... | 02/04/2003 |
| 6472543 | Lactone compounds having alicyclic structure and their manufacturing method Lactone compounds of formula (1) are novel and useful as monomers to form base resins for use in chemically amplified resist compositions adapted for micropatterning lithography. ##STR1## Letter k is 0 or 1 and m is an integer of 1-8.... | 10/29/2002 |
| 6462206 | Catalytic reduction of ketones and aldehydes using organometallic ruthenium complexes Ketones and aldehydes are hydrogenated to the corresponding alcohol or alkyl group, using H2 gas as the stoichiometric reductant, and organometallic ruthenium complexes as the catalysts.... | 10/08/2002 |
| 6441198 | Podophyllotoxin dimer as DNA topoisomerase II inhibitors, and a process for the preparation therefore The present invention discloses novel podophyllotoxin dimers having structural formula I ##STR1## wherein R is H or CH3 and Z is aryl or subsituted aryl compound selected form the group counting of phenylene, naphthalene, p-terpbhnyl, dime... | 08/27/2002 |
| 6376414 | Method for producing catalysts containing ruthenium and the use thereof for hydrogenation The invention relates to catalysts containing ruthenium and at least one other metal having an atomic number in the range of from 23 to 82 prepared by (a) mixing a suspension of a ruthenium compound having a specific surface area in the range of from 50 t... | 04/23/2002 |
| 6288245 | Process for the production of tetrahydrofuran and gammabutyrolactone A two-stage process for producing tetrahydrofuran and gammabutyrolactone in varying proportions from maleic, succinic anhydride or fumaric acid esters, by vapor phase hydrogenation. The first stage occurs on a copper-based catalyst to produce a mixture of... | 09/11/2001 |
| 6248906 | Process for the production of tetrahydrofuran, gammabutyrolactone and butanediol Process for the production of tetrahydrofuran, gammabutyrolactone and butanediol starting from maleic anhydride esters, consisting of two subsequent hydrogenations.... | 06/19/2001 |
