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| Number | Title | Issue Date |
| 7399891 | Process for alcohol production by selective ether decomposition This invention relates to a process for the production of an alcohol, the process comprising (a) reacting an olefin and water in the presence of a catalyst under conditions sufficient to form a crude alcohol stream comprising alcohol, and a dialkyl ether; (b) separa... | 07/15/2008 |
| 7342141 | Process for the preparation of alkanediol The invention provides a process for the preparation of alkanediol comprising the steps: (i) contacting alkylene oxide with carbon dioxide in the presence of a carbonation catalyst to obtain a reaction mixture containing alkylene c... | 03/11/2008 |
| 7335801 | Polyglycerols and production thereof A polyglycerol composition contains diglycerol, triglycerol, and tetraglycerol each in a content of 5 percent by weight or more, has a total content of diglycerol, triglycerol, and tetraglycerol of 75 percent by weight or more, has a total content of higher polyglyc... | 02/26/2008 |
| 7329785 | Process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal in the presence of a hydration co-catalyst A process for preparing 1,3-propanediol comprising the steps of: (a) preparing an aqueous mixture of 3-hydroxypropanal, (b) passing said aqueous 3-hydroxypropanal mixture to a hydrogenation zone wherein the hydrogenation zone is comprised of at least two stages wher... | 02/12/2008 |
| 7282192 | Mixed metal oxide containing sulfur The invention relates to a composition of matter comprising at least one metal from Group 3, at least one metal from Group 4, sulfur and oxygen, particularly useful as a catalyst for ether decomposition to alkanols and alkenes. ... | 10/16/2007 |
| 7276634 | Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodium hydroxide is added to the soluti... | 10/02/2007 |
| 7230145 | Catalyst for producing both end-hydroxyl group-terminated diols, process for producing the catalyst, process for producing the diols by using the catalyst, and both end-hydroxyl group-terminated diols obtained by the process A process for producing a both end-hydroxyl group-terminated diol, wherein an epoxy alcohol represented by the general formula (1) is subjected to a hydrogenolysis reaction in the presence of a catalyst for producing both end-hydroxyl group terminated diols, which c... | 06/12/2007 |
| 7164048 | High-purity polyalkylene glycols and preparation thereof A process is described for purifying polyalkylene glycols obtained by adding alkylene oxide to alkylene glycol, in which, after addition is complete, the resultant polyalkylene glycol is treated at a pH of >7 with a bleaching agent selected from the group consisting... | 01/16/2007 |
| 7148375 | Branched primary alcohol compositions and derivatives thereof A detergent composition having cold water solubility and exhibiting high calcium tolerance can be produced from biodegradable branched ether derivative compositions derived from a branched ether primary alcohol represented by the formula: | 12/12/2006 |
| 7102037 | Selective decomposition of ethers A process for selectively converting a dialkyl ether to the corresponding alkene and alkanol comprises contacting a feed containing at least one dialkyl ether with a catalyst comprising a mixed metal oxide which comprises at least one metal selected from Group 4 of ... | 09/05/2006 |
| 7084310 | Method for the continuous production of propylene glycol Process for the continuous preparation of propylene glycols, which comprises the steps (i) to (ii): (i) reacting propylene with hydrogen peroxide to form propylene oxide and give propylene glycols as by-products, (... | 08/01/2006 |
| 7071364 | Branched primary alcohol compositions and derivatives thereof A detergent composition having cold water solubility and exhibiting high calcium tolerance can be produced from biodegradable branched ether derivative compositions derived from a branched ether primary alcohol represented by the formula: | 07/04/2006 |
| 7056935 | Rotamase enzyme activity inhibitors This invention relates to methods of using neurotrophic compounds having an affinity for FKBP-type immunophilins to stimulate or promote neuronal growth or regeneration and to prevent neuronal degeneration. ... | 06/06/2006 |
| 6972346 | Solid acid catalyzed reactive stripping of impurities formed during the production of 1, 3-propanediol A process for producing 1,3-propanediol comprising the steps of: a) forming an aqueous solution of 3-hydroxypropanal, b) hydrogenating the 3-hydroxypropanal to form a first crude 1,3-propanediol mixture comprising 1,3-propanediol, water, and MW 132 cyclic acetal, c)... | 12/06/2005 |
| 6909020 | Branched primary alcohol compositions and derivatives thereof A detergent composition having cold water solubility and exhibiting high calcium tolerance can be produced from biodegradable branched ether derivative compositions derived from a branched ether primary alcohol represented by the formula: | 06/21/2005 |
| 6897343 | Process for the preparation of propanediol The invention relates to a process for the preparation of 1,2-propanediol from propylene oxide, which process involves contacting propylene oxide with carbon dioxide in the presence of a homogeneous phosphorus containing catalyst to obtain propylene carbonate, optio... | 05/24/2005 |
| 6800766 | Hydrolytic kinetic resolution of cyclic substrates The present invention relates to a process for stereoselective or regioselective chemical synthesis which generally comprises reacting a nucleophile and a chiral or prochiral cyclic substrate in the presence of a non-racemic, chiral catalyst to produce a stereoisome... | 10/05/2004 |
| 6750373 | One-step production of 1, 3-propanediol from ethylene oxide and syngas with a cobalt-iron catalyst Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol ... | 06/15/2004 |
| 6693222 | Process for splitting water-soluble ethers A process for production of 1,3-propanediol including the steps: (a) hydrating acrolein in the presence of an acid hydration catalyst; (b) catalytically hydrogenating the reaction mixture of step (a), which reaction mixture comprises 3-hydroxypropionaldeh... | 02/17/2004 |
| 6660890 | Production of optically active -hydroxyacetals A process for the heterogeneous and enantioselective hydrogenation of prochiral organic -keto compounds with platinum as the catalyst in the presence of a soluble or immobilized chiral aromatic nitrogen base with at least one basic nitrogen atom ad... | 12/09/2003 |
| 6586643 | One-step production of 1,3-propanediol from ethylene oxide and syngas with a catalyst with a N-heterocyclic ligand Disclosed is a new catalyst composition comprising a bimetallic Co--Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) f... | 07/01/2003 |
| 6563007 | Preparation of polyetherols Polyetherols based on solid initiator substances and liquid, hydroxyl-containing coinitiators are prepared by a catalyzed addition reaction of alkylene oxides by a process in which the initiator combination contains diols carrying ethoxy structures, the r... | 05/13/2003 |
| 6437199 | Method for production of high-purity monoethylene glycol A method for the production of monoethylene glycol of high purity is disclosed which comprises subjecting ethylene to catalytic vapor phase oxidation with a molecular oxygen-containing gas thereby obtaining an ethylene oxide-containing gas, exposing the e... | 08/20/2002 |
| 6403845 | Preparation of pentanediols from alkoxydihydropyrans ##STR1## are prepared by single-stage reaction of alkoxydihydropyrans of the formula (II) ##STR2## with water and hydrogen in the presence of a catalyst comprising oxides of nickel, zirconium and copper. In the formulae (I) and (II), R, R', R", R'" can be... | 06/11/2002 |
| 6362276 | Degradable heterobifunctional poly(ethylene glycol) acrylates and gels and conjugates derived therefrom A heterobifunctional poly(ethylene glycol) is provided having a hydrolytically degradable linkage, a first terminus comprising an acrylate group, and a second terminus comprising a target such as a protein or pharmaceutical agent or a reactive moiety capa... | 03/26/2002 |
| 6265625 | Isolation of glycols This invention relates to a process for preparing and isolating glycols and to a thin-film evaporator which is used in carrying out the process.... | 07/24/2001 |
| 6255540 | Methods for producing two-substituted glycerols having various levels of protection A method for producing 2-substituted glycerols having various levels of hydroxy group protection by opening dihydroxyacetone dimer in a nonaqueous, non-protic environment with a composition that initially protects both of the liberated 1,3-dihydroxy group... | 07/03/2001 |
| 6103941 | Preparation of 1,4-butanediol 1,4-Butanediol is prepared by a process which comprises converting 1,3-butadiene diepoxide in the presence of hydrogen over a hydrogenation catalyst whose active component is not elemental Pd and/or Pt. The hydrogenation catalyst preferably contains at le... | 08/15/2000 |
| 5401888 | Method for preparing allylic alcohols The present invention provides a method for preparing allylic alcohols by the palladium-catalyzed cross-coupling of vinylic epoxides and aryl halides, vinylic halides or vinylic triflates.... | 03/28/1995 |
| 5364987 | Process for the preparation of 1,3-propanediol 1,3-propanediol (PD) is obtained by hydration of acrolein to 3-hydroxypropionaldehyde (HPA) with subsequent catalytic hydrogenation; 3,3'-oxybis-1-propanol (OD) occurs as a yield-reducing by-product. Disclosed is a process which increases the 1,3-propaned... | 11/15/1994 |
| 5342903 | Process for the preparation of adducts of epoxides and alcohols A process for the preparation of adducts by reacting an alcohol with an epoxy compound in the presence of a catalyst, which comprises reacting an alcohol of formula I ##STR1## wherein A is an aliphatic, cycloaliphatic or araliphatic radical and r is ... | 08/30/1994 |
| 5105028 | Separation of hetero-atom(s) containing hydrocarbons Process for preparing one or more hetero-atoms containing hydrocarbons by contacting one or more hydrocarbons with a plasma-generated system derived from a source containing hydrogen atoms(s) and at least one hetero-atom in which process the plasma-genera... | 04/14/1992 |
| 5087775 | Process for the preparation of partially fluorinated alcohols A process for the preparation of partially fluorinated alcohols starting from halogen-containing alkenes, and 2,2,3,3,4,4-hexafluorocyclopentanol as a new partially fluorinated alcohol.... | 02/11/1992 |
| 5072059 | Two-step monoethylene glycol preparation process A two-step reaction process for converting ethylene oxide with high selectivity into monoethylene glycol which comprises firstly reacting ethylene oxide with acetone in the presence of a solid acid catalyst to form 2,2-dimethyl-1,3-dioxolane and secondly ... | 12/10/1991 |
| 4873379 | Process for making 1,3-diols from epoxides A process for manufacturing 1,3-glycols is disclosed. The process comprises reacting an epoxide with synthesis gas in the presence of rhodium in the presence of an alkali metal compound.... | 10/10/1989 |
| 4870208 | Asymmetric hydrogenolysis of epoxides A process of preparing chiral alcohols by the asymmetric catalytic hydrogenolysis of epoxides using rhodium or ruthenium catalysts containing chiral phosphine ligands.... | 09/26/1989 |
| 4859801 | Synthesis of mixtures of butanediols Process for preparing 2-alkyl-1,4-butanediols and mixtures with 1,4-butanediol which comprises bringing together, at an initial alkaline pH, and at a temperature and pressure suitable for reaction, 2,3-dihydrofuran, hydrogen, an unsubstituted aliphatic al... | 08/22/1989 |
| 4801759 | Process for producing vicinal diols A method for the continuous saponification of epoxides with 3-8 carbon atoms at low pressures, preferably atmospheric pressure, and low boiling temperatures with small amounts of water. Yields and selectivities are very high.... | 01/31/1989 |
| 4663468 | Hydroformylation of 3-methyl-3-buten-1-ol and analogs thereof and use of such hydroformylation products There is disclosed a method of hydroformylating 3-methyl-3-buten-1-ol and analogs thereof with carbon monoxide and hydrogen in the presence of a rhodium compound free from modification by a ligand containing an element belonging to the group V of the peri... | 05/05/1987 |
| 4661643 | Hydrogenolysis process for the production of monoethylene glycol monomethyl ether, monoethylene glycol and ethanol This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating t... | 04/28/1987 |
