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| Number | Title | Issue Date |
| 7169944 | Optically active epoxy compounds and processes for their production An optically active epoxyenone derivative of the following formula (1): wherein R1 is a methyl group, an ethyl group or a C3-10 branched, linear or cyclic alkyl group, and R2 is a... | 01/30/2007 |
| 7019172 | Process for preparation of S-(-)-betaxolol and salts thereof The present invention relates to an improved process for preparation of S-(−)-betaxolol salts. More particularly the present invention relates to the preparation of hydrochloride salt of S-(−)-betaxolol of formula (1) ... | 03/28/2006 |
| 7005437 | Substituted aryl and heteroaryl derivatives, the preparation thereof and the use therof as pharmaceutical compositions The present invention relates to new substituted aryl and heteroaryl derivatives of general formula wherein A, Ar, n, X, Y1, Y2, Y3, Y4, R | 02/28/2006 |
| 6936664 | Reworkable epoxidized 1-(cyclo) alkenyl ether/polycarboxylic acid product The present invention discloses reworkable epoxy compositions suitable for encapsulation of and underfill for electronic components comprising (a) a curable epoxy component which is the reaction product of an epoxidized 1-alkenyl ether or 1-cycloalkenyl ether and a ... | 08/30/2005 |
| 6787657 | Optically active epoxypropionate derivative, intermediate thereof and processes for their production An optically active epoxypropionate derivative of the following formula (1): wherein symbol * represents optically active carbon. Also disclosed is an optically active epoxypropionate derivative of the following formula ... | 09/07/2004 |
| 6693149 | Process for preparing epoxy group-containing curable polyphenylene ether resin using high-molecular-weight polyphenylene resin A process for preparing an epoxy group-containing curable polyphenylene ether (PPE) resin. The process involves introducing an epoxy group-containing functional group to the terminal end of PPE (Mn>3000) by modifying the hydroxy and ester groups on the te... | 02/17/2004 |
| 6653419 | Polyfluorinated epoxides and associated polymers and processes A method for producing partially fluorinated epoxides and corresponding polyether homopolymers of these polyfluorinated epoxides is described. Also described is a method for incorporating a fluoroalcohol functional group into a polymer as a pendant group.... | 11/25/2003 |
| 6627685 | Lightfast epoxy resin A lightfast epoxy resin is formed by phosgenating Bisphenol A by reaction with phosgene to produce Bisphenol A bischloroformate. The Bisphenol A bischloroformate is then reacted with either epichlorohydrin, glycidol or pinacol and another chemical to prod... | 09/30/2003 |
| 6586564 | Double-metal cyanide catalysts for preparing polyether polyols The invention relates to double-metal cyanide (DMC) catalysts for preparing polyether polyols by the polyaddition of alkylene oxides on to starter compounds containing active hydrogen atoms, wherein the DMC catalysts are composed of: a) at least one DMC c... | 07/01/2003 |
| 6423865 | Compounds and their application as well as a method of producing liquid crystalline polymers therefrom The invention relates to compounds with the general formula Y1 --A1 --M1 --A2 --Y2 wherein Y1 and Y2 are different from each other and Y1 is an acrylate or methacrylate res... | 07/23/2002 |
| 6313060 | Catalyst for ring-opening polymerization of alkylene oxide, method for preparation thereof and use thereof A resilient polyurethane foam produced by using a polyether polyol produced by reacting alkylene oxides with a polyhydroxy compound having at least 2 hydroxyl groups as an initiator in the presence of the catalyst for alkylene oxide ring-opening polymeriz... | 11/06/2001 |
| 6228955 | Asymmetric epoxides, their synthesis and use A process for preparing an optically-enriched chiral epoxide of formula I ##STR1## wherein R1, R2 and R3 are each independently selected from H, R, R--CO-- and R--O--CO--, each R independently being substantially a hydroca... | 05/08/2001 |
| 6204357 | Double metal cyanide catalysts for preparing poly-etherpolyols The invention is directed to new double metal cyanide (DMC) catalysts, a process for the preparation of these catalysts, and to a process for the preparation of polyetherpolyols by the polyaddition of alkylene oxides to starter compounds which contain act... | 03/20/2001 |
| 6140273 | Substituted 2-benzoylcyclohexane-1,3-diones 2-Benzoylcyclohexane-1,3-diones of the formula I: ##STR1## where: R1 and R2 are each hydrogen, mercapto, nitro, halogen, cyano, thiocyanato, C1 -C6 -alkyl, C1 -C6 -haloalkyl, C1 | 10/31/2000 |
| 6107433 | Process for the preparation of vegetable oil-based polyols and electroninsulating casting compounds created from vegetable oil-based polyols A vegetable oil-based polyol is made by adding a peroxyacid to vegetable oil wherein said peroxyacid reacts with said vegetable oil to form epoxidized vegetable oil and adding said epoxidized vegetable oil to a mixture of an alcohol, water, and a catalyti... | 08/22/2000 |
| 6063812 | Fumagillol derivatives and processes for preparing the same Compounds useful as angiogenesis inhibiting agents and processes for their preparation are disclosed. In one embodiment, the compounds of the invention are represented by Formula 1: ##STR1## Also disclosed is a pharmaceutical composition for inhibiti... | 05/16/2000 |
| 5942633 | Process for the selective alkylation of betaxolol intermediates The present invention relates to a process for the selective alkylation of intermediates of betaxolol.... | 08/24/1999 |
| 5536855 | Process for preparing glycidyl esters for use in electronics adhesives Glycidyl esters are prepared to have low chlorine, chloride, sodium and potassium contamination and a thixotropic index greater than 3.0 by a process that comprises reacting carboxylic mono- or dimer acids with glycidyl alcohols in a molar ratio of 1 to (... | 07/16/1996 |
| 5527927 | Process for producing glycidyl acrylate or glycidyl methacrylate There are disclosed a process for producing glycidyl acrylate or glycidyl methacrylate by the transesterification of glycidol and methyl methacrylate, etc. which process comprises carrying out the transesterification in the presence of a polymerization in... | 06/18/1996 |
| 5380886 | Process for the production of epoxide ring opening products having a defined residual epoxide oxygen content A process for the production of epoxide ring opening products having a defined residual epoxide oxygen content by reaction of epoxides with nucleophiles in the presence of medium-strength acids is provided. The products have a defined residual epoxide oxy... | 01/10/1995 |
| 5367088 | Process for producing a composition comprising an epoxy compound having a hydroxyl group The present invention provides a composition represented by the formula ##STR1## (wherein x is an integer of 3 to 7, y is an integer of 0 to 50, and Ra and Rb are H, methyl group, or propyl group and each of the Ra an... | 11/22/1994 |
| 5340487 | Dispersant adducts comprising alcohol adducts of dicarboxylic acid monoepoxy thiol reaction products The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted with carboxylic acid producing moieties (preferably acid or anhydri... | 08/23/1994 |
| 5254694 | Optically active epoxycyclohexane derivative and epoxycyclohexanone derivative, and process for the preparation thereof An optically active epoxycyclohexane derivative represented by the general formula: ##STR1## wherein R represents a 4-oxycarbonyl-1-hydroxy-3-methyl-3(Z)-buten-1-yl or 4-hydroxycarbonyl-3-methyl-1(E),3(Z)-butadien-1-yl group; and R1 and ... | 10/19/1993 |
| 5238889 | Process for the separation of oligomeric materials from a catalyst mixture Disclosed is a process for the recovery of catalyst values from mixtures of catalyst compounds and oligomeric materials. The process provides for the separation of (i) an onium iodide compound, (ii) an organotin iodide compound, or (iii) a mixture thereof... | 08/24/1993 |
| 5198557 | Process for the resolution of 3-(4-substituted-phenyl)-glycidic acid derivatives A process for the kinetic resolution of cis or trans enantiomeric mixtures of the compounds of formula ##STR1## wherein R3 and X have the meanings reported in the specification and the asterisks mark the asymmetric carbon atoms, is describ... | 03/30/1993 |
| 5183910 | Process and intermediates for chiral epoxides Chiral epoxybutyrates are prepared in high yield from novel dihydro-3R-substituted sulfonyloxy-4R-hydroxy-2-(3H)furanones via based catalyzed alcoholysis. The product chiral epoxy butyrates are useful intermediates for the synthesis of 1-carba-1-dethia ce... | 02/02/1993 |
| 5155243 | Composition comprising epoxy compounds having hydroxyl group and process for producing the same The present invention provides a composition represented by the formula ##STR1## (wherein x is an integer of 3 to 7, y is an integer of 0 to 50, and Ra and Rb are H, methyl group, or propyl group and each of the Ra an... | 10/13/1992 |
| 5110959 | Process for preparation of epoxy esters and intermediates prepared thereby This invention relates to a process for preparing epoxy esters, and intermediates prepared by this process, in particular, to a process which produces non-racemic epoxy esters which are of use as intermediates in the preparation of pharmaceutical compound... | 05/05/1992 |
| 5097049 | Process and intermediates for chiral epoxides Chiral epoxybutyrates are prepared in high yield from novel dihydro-3R-substituted sulfonyloxy-4R-hydroxy-2-(3H)furanones via based catalyzed alcoholysis. The product chiral epoxy butyrates are useful intermediates for the synthesis of 1-carba-1-dethia ce... | 03/17/1992 |
| 5057617 | Dispersant additives prepared from monoepoxy thiols The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted with carboxylic acid producing moieties (preferably acid or anhydri... | 10/15/1991 |
| 5015744 | Method for preparation of taxol using an oxazinone Process for the preparation of a taxol intermediate comprising contacting an alcohol with an oxazinone having the formula: ##STR1## wherein R1 is aryl, substituted aryl, alkyl, alkenyl, or alkynyl; R2 is hydrogen, ethoxyethyl, 2... | 05/14/1991 |
| 5013855 | Process for the preparation of aromatic ethers A process for the preparation of an aromatic ether of general formula: ##STR1## by the action of 3-chloro-1,2-propanediol sulfate on a phenol of general formula: Ar--OH in the presence of an inorganic base. Use of a product obtained according to the proce... | 05/07/1991 |
| 4946974 | Optically active derivatives of glycidol Optically active derivatives of glycidol are disclosed. These compounds, (2S) and (2R) glycidyl tosylate and (2S) and (2R) glycidyl 4-chloro-3-nitrobenzenesulfonate can be readily crystallized to high enantiomeric purity. Their use in other synthesis reac... | 08/07/1990 |
| 4933467 | Preparation of imides Cyclic imides are prepared by reacting carbon monoxide with an ortho dihalide aromatic compound or a cis-1,2-vinyl dihalide and an amide in the presence of palladium catalyst and a base. The process is preferably conducted in the presence of a dipolar apr... | 06/12/1990 |
| 4908227 | Divinyl epoxy ethers This invention relates to divinyl epoxy ethers having the formula ##STR1## wherein x and x' are integers each having a value of from 0 to 3 and to the preparation and use of the above divinyl epoxy ethers for metal, wood or plastic coatings which pos... | 03/13/1990 |
| 4820852 | Process for the preparation of diacyl-dianhydro hexitols The subject of the invention is an improved process for the industrial scale preparation of the compounds of the formula ##STR1## and salts thereof by acylating the hexitols of the formula (II) with an anhydride of the formula (II) at a temperature o... | 04/11/1989 |
| 4742169 | Process for the preparation of halohydroxyalkyl carbamates and 2,3-epoxy carbamates The invention is a process for the preparation of halohydroxyalkyl carbamates which comprises contacting an epihalohydrin carbonate with a secondary amine-containing compound, wherein the secondary amine has a pKa at which the secondary amine will react w... | 05/03/1988 |
| 4667044 | Process for the production of aromatic glycidyl esters Aromatic mono or polycarboxylic acid glycidyl esters are obtained in good yields and high purity by transesterification of the corresponding aromatic carboxylic acid alkyl esters with glycidol in the presence of weakly toxic catalysts, namely the alkali, ... | 05/19/1987 |
| 4418204 | Method for making esters What is disclosed is a method for the transesterification of lower alkyl esters of ,ଲ-unsaturated acids such as acrylic and methacrylic acid, with an epoxy alcohol, such as glycidol, which uses 1,4-diazabicyclo(2,2,2)octane as a transesterifi... | 11/29/1983 |
| 4386191 | Compositions for forming poly(oxazolidone/urethane) thermosets and products therefrom Reaction of a polyol, acid anhydride and diepoxide, preferably in a single step, yields a prepolymer composition containing a prepolymer containing terminal epoxy and non-terminal, secondary hydroxy groups. Reaction of this prepolymer with a polyisocyanat... | 05/31/1983 |
