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| Number | Title | Issue Date |
| 7265239 | Process for the conversion of furfuryl alcohol into levulinic acid or alkyl levulinate A process for the conversion of furfuryl alcohol into levulinic acid or alkyl levulinate comprising contacting furfuryl alcohol and water or an alkyl alcohol with a porous heterogeneous catalyst comprising strong acid ion-exchange resin, wherein the catalyst has por... | 09/04/2007 |
| 7259218 | Processes for making temporary wet strength additives Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer comprising the homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strengt... | 08/21/2007 |
| 7232788 | Mixed metal oxide catalysts for the production of unsaturated aldehydes from olefins A catalyst for production of unsaturated aldehydes, such as methacrolein, by gas phase catalytic oxidation of olefins, such as isobutylene, contains oxides of molybdenum, bismuth, iron, cesium and, optionally, other metals. The catalyst has a certain relative amount... | 06/19/2007 |
| 7217836 | Process for producing (meth)acrolein and/or (meth)acrylic acid A method for producing (meth)acrolein and/or (meth)acrylic acid by subjecting isobutylene and the like or propylene to a vapor-phase catalytic oxidation with molecular oxygen in the presence of a solid oxidation catalyst in a tubular type of fixed bed reactor, where... | 05/15/2007 |
| 7211687 | Process for making carboxyalkylates of branched alcohols Process for carboxy-alkylation, particularly carboxymethylation, of branched alcohols includes the reaction of isoalcohols with potassium-t-butoxide or sodium-t-butoxide and with salt of halogenated alkanoic acid in the presence of the isoalcohol (starting alcohol) ... | 05/01/2007 |
| 7161044 | Catalytic gas phase oxidation reaction An object of the present invention is to provide a catalytic gas phase oxidation reaction in which: even under reaction conditions of a higher gas pressure, a higher concentration of the raw material gas and a larger space velocity of a reaction gas, the thermal acc... | 01/09/2007 |
| 7045657 | Catalytic gas phase oxidation process The object of the present invention is to provide a process in which, when the unsaturated carboxylic acid is produced, or when the unsaturated aldehyde and/or the unsaturated carboxylic acid are produced by carrying out the catalytic gas phase oxidation reaction by... | 05/16/2006 |
| 7005542 | Catalyst for synthesis of unsaturated aldehyde, production process for said catalyst, and production process for unsaturated aldehyde using said catalyst The present invention provides: a production process for a catalyst for synthesis of an unsaturated aldehyde and/or an unsaturated carboxylic acid, which production process is suitable for producing the catalyst with good reproducibility, wherein the catalyst is exc... | 02/28/2006 |
| 6960684 | Production process for unsaturated aldehyde The present invention provides a process in which, when an unsaturated aldehyde and/or an unsaturated carboxylic acid are produced by carrying out a catalytic gas phase oxidation reaction by using a fixed-bed multitubular reactor which is packed with a molybdenum-co... | 11/01/2005 |
| 6956086 | Water dispersible epoxy resins A amidoamine composition containing oligomeric amidoamine compounds having the structure: the average of x based on the amidoamine composition is at least 0.2, and Z is the residue of a polyoxyalkylene polyether polyca... | 10/18/2005 |
| 6939991 | Preparation of acrylic acid In a process for preparing acrylic acid, an acrylic acid-containing product gas mixture obtained by catalytic gas phase partial oxidation of a C3 precursor of acrylic acid, after direct cooling with a quench liquid, is fractionally condensed in a separati... | 09/06/2005 |
| 6919478 | Reaction tube, process for producing catalyst and process for producing unsaturated aldehyde and unsaturated carboxylic acid In producing a catalyst used for synthesis of an unsaturated aldehyde and an unsaturated carboxylic acid by a gas-phase catalytic oxidation, there is used a step of packing an additive-containing catalyst precursor of the catalyst into a tubular reactor, passing a g... | 07/19/2005 |
| 6878847 | Catalyst for preparation of unsaturated aldehyde and unsaturated carboxylic acid A catalyst useful for catalytic vapor-phase oxidation of isobutylene, t-butanol or propylene to produce respectively corresponding unsaturated aldehyde and unsaturated carboxylic acid is provided. The catalyst consists of ring-formed shaped bodies composed of (i) a ... | 04/12/2005 |
| 6784134 | Catalyst for preparation of unsaturated aldehyde and unsaturated carboxylic acid A catalyst suited for catalytic vapor-phase oxidation of isobutylene, t-butanol or propylene to produce respectively corresponding unsaturated aldehyde and unsaturated carboxylic acid is provided. Said catalyst consists of ring-formed shaped bodies composed of (i) a... | 08/31/2004 |
| 6583316 | Catalysts for production of unsaturated aldehyde and unsaturated carboxylic acid and a process for producing unsaturated aldehyde and unsaturated carboxylic acid using the catalysts Improved catalysts for use in vapor phase oxidation of at least one compound selected from the group consisting of propylene, isobutylene, t-butanol and methyl-t-butyl ether with molecular oxygen or a molecular oxygen-containing gas to produce the corresp... | 06/24/2003 |
| 6509508 | Process for producing (meth)acrolein and (meth)acrylic acid A reaction for producing (metho)acrolein and (meth)acrylic acid by vaporn-phase oxidation of at least a compound selected from propyl-ene, isobytylene, t-bytanol and methyl-t-butyl ether. For the process Complex oxide catalysts represented by the formula,... | 01/21/2003 |
| 6506933 | Vapor phase carbonylation process using gold catalysts Disclosed herein is a vapor phase carbonylation process useful for producing carboxylic acids, esters and mixtures thereof from lower aliphatic alcohols, ethers, ester, and ester-alcohol mixtures. The vapor phase carbonylation process is characterized in ... | 01/14/2003 |
| 6476258 | Process for producing aryloxyacetic acids An industrially advantageous process for producing an aryloxyacetic acid represented by the formula (2): ##STR1## wherein m represents an integer of 1 or 2, n represents an integer from 0 to 4, Ar represents a aromatic hydrocarbon ring, each Rs independen... | 11/05/2002 |
| 6441222 | Vapor phase carbonylation process using iridium-gold co-catalysts Disclosed herein is a vapor phase carbonylation process useful for producing carboxylic acids, esters and mixtures thereof from lower aliphatic alcohols, ethers, ester, and ester-alcohol mixtures. The vapor phase carbonylation process is characterized in ... | 08/27/2002 |
| 6399818 | Process for producing unsaturated aldehydes and unsaturated carboxylic acids As an improvement in the process for preparing unsaturated aldehydes and unsaturated carboxylic acids through vapor-phase catalytic oxidation of at least one starting compound selected from propylene, isobutylene, t-butanol and methyl-t-butyl ether with m... | 06/04/2002 |
| 6191308 | Process for the manufacture of oxygenates -Hydroxycarbonyl compounds are obtained from aldehydes or ketones by forming an acetal or ketal which is decomposed to a vinyl ether. The ether is selectively oxidized under conditions yielding an -hydroxy-aldehyde or -hydroxy-ketone ... | 02/20/2001 |
| 6084124 | Method to prepare -ଲ unsaturated carboxylic acids from epoxides using a cobalt and tin catalyst system The present invention is a method to produce an unsaturated carboxylic acid which includes the steps of: providing an epoxy compound; contacting the epoxy compound with carbon monoxide in the presence of a catalytically effective amount of a catalyst syst... | 07/04/2000 |
| 5981804 | Catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid and method for production of unsaturated aldehyde and unsaturated carboxylic acid by use of the catalyst A catalyst for the production of unsaturated aldehyde and unsaturated carboxylic acid by the vapor-phase catalytic oxidation of at least one compound selected from the group consisting of propylene, isobutylene, t-butanol and methyl-t-butyl ether and a me... | 11/09/1999 |
| 5864051 | Selective oxidation catalyst process for preparing the catalyst and process using the catalyst A catalyst for the selective oxidation of alkanes and alkenes has been developed. The catalyst consists of a noble metal component such as platinum and a SbOx component. A unique feature of the catalyst is that the noble metal component is present as part... | 01/26/1999 |
| 5672662 | Poly(ethylene glycol) and related polymers monosubstituted with propionic or butanoic acids and functional derivatives thereof for biotechnical applications Active esters of PEG acids and related polymers are provided that have a single propionic or butanoic acid moiety and no other ester linkages. These polymer acids have a half life in water of from about 10 to 25 minutes. For example, alpha-methoxy, omega-... | 09/30/1997 |
| 5608106 | Preparation of alkoxyalkanoic acids A process for preparing an alkoxyalkanoic acid by reacting the corresponding alkoxyalkanol with a resin-supported stable free radical nitroxide in the presence of a NOx -generating compound and, optionally, an oxidant and/or a solvent at a temp... | 03/04/1997 |
| 5563303 | Production of xylitol A method for producing xylitol from D-glucose, D-fructose, D-galactose or mixtures thereof, characterized in that it comprises the steps of: a. oxidation of the starting material to an intermediate that consists mainly of L-xylonic acid, D-arabinonic acid, D-l... | 10/08/1996 |
| 5504246 | Process for preparing carboxylates of alkylpolyoxyalkylenes A process for preparing carboxylates of polyoxyalkylene siloxanes and -amines, alkylpolyoxyalkylenes, polyoxyalkylene block polymers, alkylamidepolyoxyalkylenes and alkylpolyglucosides comprising subjecting a primary hydroxyl group-containing polyoxyalkyl... | 04/02/1996 |
| 5488154 | Process for the preparation of alkoxyalkanoic acids A process for the preparation of an alkoxyalkanoic acid by reacting the corresponding alkoxyalkanol with a stable free radical nitroxide in the presence of a chromium (II) salt, a highly polar solvent, an oxidant and water, at a temperature in the range o... | 01/30/1996 |
| 5380930 | Process for the preparation of alkoxyalkanoic acids A process for the preparation of an alkoxyalkanoic acid by reacting the corresponding alkoxyalkanol with a stable free radical nitroxide in the presence of a NOx -generating compound, a solvent and an oxidant, at a temperature in the range of f... | 01/10/1995 |
| 5276178 | Process for producing methacrolein and methacrylic acid The present invention provides a process for producing methacrolein and methacrylic acid by subjecting at least one material selected from isobutylene, t-butanol and methyl t-butyl ether to gas phase catalytic oxidation with molecular oxygen or a molecula... | 01/04/1994 |
| 5256819 | Preparation of polyoxyalkylene-alpha,omega-dicarboxylic acids A process for the preparation of a polyoxyalkylene-alpha,omega-dicarboxylic acid by reacting the corresponding polyoxyalkylene glycol with a stable free radical nitroxide in the presence of a NOx -generating compound and optionally, an oxidant ... | 10/26/1993 |
| 5239116 | Preparation of secondary alkoxyalkanoic acids A process for the preparation of a secondary alkoxyalkanoic acid by reacting the corresponding secondary alkoxyalkanol with a stable free radical nitroxide in the presence of a NOx -generating compound and an oxidant at a temperature in the ran... | 08/24/1993 |
| 5233087 | Process for making alkyl ethoxy carboxylates An improved process for the production of alkyl ethoxy carboxylate surfactants comprising reacting ethoxylated fatty alcohols with a selective hindered base and anhydrous chloroacetic acid or a salt thereof. The reactants can be reacted simultaneously or,... | 08/03/1993 |
| 5198581 | Process for producing unsaturated aldehydes and unsaturated acids A process for producing an unsaturated aldehyde or an unsaturated acid comprises catalytically oxidizing propylene or at least one compound selected from isobutylene, tert.-butyl alcohol and methyl-tert.-butyl ether in a gaseous phase with molecular oxyge... | 03/30/1993 |
| 5175360 | Preparation of alkoxyalkanoic acids This invention relates to a process for the preparation of an alkoxyalkanoic acid of the formula RO(CH2 CHR'O)n CH2 CO2 wherein R is an alkyl group of from 1 to about 22 carbon atoms, R' is hydrogen or methyl or mixt... | 12/29/1992 |
| 5175358 | Preparation of laevulinic acid Essentially pure and colorless laevulinic acid is produced by heating and ring-opening furfuryl alcohol in the presence of water and a strong non-oxidizing protonic acid, and which includes establishing a reaction medium containing water, the strong proto... | 12/29/1992 |
| 5175359 | Preparation of alkoxyalkanoic acids A process for the preparation of an alkoxyalkanoic acid of the formula RO(CH2 CHR'O)n CH2 CO2 H wherein R is an alkyl group of from 1 to about 22 carbon atoms, R' is hydrogen or methyl or mixtures thereof (on the individu... | 12/29/1992 |
| 5166423 | Process for the oxidation of alcohols to acids A process for the preparation of an alkanoic acid which comprises reacting the corresponding alkanol with a solubilized stable free radical nitroxide having the formula: ##STR1## wherein each of R1, R2, R3 and R4... | 11/24/1992 |
| 5166422 | Process for the oxidation of alcohols to acids A process for the preparation of an alkanoic acid which comprises reacting the corresponding alkanol with a solubilized stable free radical nitroxide having the formula: ##STR1## wherein each of R1, R2, R3 and R4... | 11/24/1992 |
