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| Number | Title | Issue Date |
| 7411097 | Thiol compound, copolymer and method for producing the copolymer By resolving objections in the prior art, provided are a novel copolymer suitable as a coating polymers which is excellent in adhesion to a substrate and can be used suitably as the polymer for the coating film having durability against pattern collapse in the finer... | 08/12/2008 |
| 7323602 | Preparation process of some halogeno-substituted monosulfides and their hydroxy-monosulfide or isothiouronium bromide equivalents as intermediates A process for preparing an intermediate compound of formula (II) where n is an integer of from 3 to 14; R1 is haloC1-10alkyl, C1-10alkyl, C2-10alkenyl, C... | 01/29/2008 |
| 7264851 | Bistable nematic liquid crystal display device A bistable nematic liquid crystal display device comprises two cell walls enclosing a layer of nematic liquid crystal material having finely divided solid particles dispersed therein. At least one electrode on each cell wall applies an electric field across at least... | 09/04/2007 |
| 7195719 | High polarization ferroelectric liquid crystal compositions The invention relates to chiral nonracemic liquid crystal compounds having achiral tails comprising a perfluoroalkyl terminal portion which are useful as components in liquid crystal to impart high polarization to the mixture. The materials of this invention can be ... | 03/27/2007 |
| 7173156 | Thioacetate deprotection A method of thioacetate deprotection by providing a compound of the formula R1—S—CO—R2, and reacting the compound with a quaternary ammonium cyanide salt in the presence of a protic solvent in an inert atmosphere to convert the compound t... | 02/06/2007 |
| 6770776 | Synthesis of fluorocarbon compounds Fluorocarbon compounds are synthesized by reacting a substrate hydrocarbyl compound containing at least one sp3-hybridized halophoric carbon atom bearing at least two halogen atom substituents, at least one of which is a halogen atom having an atomic numb... | 08/03/2004 |
| 6646165 | Process for producing bishalophenyl disulfide This invention is directed to a process for producing a bishalophenyl disulfide, chracterized by reacting a halothiophenol with an alkali metal hydroxide to obtain an alkali metal halothiophenolate and subsequently converting the halothiophenolate into a ... | 11/11/2003 |
| 6509100 | Fluorinated hydrogn bond stabilized surface modifying agents, articles made therefrom, methods for making and using the same The present invention discloses hydrogen bond stabilized surface modifying agents having a fluorinated or semi-fluorinated carbon-containing tail group, an internal moiety capable of intermolecular hydrogen bonding or related acid-base interactions and a ... | 01/21/2003 |
| 6500988 | Method for producing aryl thiols by hydrogenating diaryldisulphides The invention relates to a particularly advantageous method for producing aryl thiols through the catalytic hydrogenation of diaryldisulphides. According to the invention, the hydrogenation is carried out in a basic alcoholic medium.... | 12/31/2002 |
| 6379590 | Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of a compound of the formula D ##STR1## wherein A' is se... | 04/30/2002 |
| 6365676 | Poly-perfluoroalkyl substituted polyamines as grease proofing agents for paper and foam stabilizers in aqueous fire-fighting foams The invention concerns a process for the reaction of a perfluoroalkyl iodide of the formula CF3 (CF2)h --I, where h is an integer from 4 to 18, with a compound having a terminal olefinic group, which comprises conducting s... | 04/02/2002 |
| 6316636 | Synthesis of fluorocarbon compounds Fluorocarbon compounds are synthesized by reacting a substrate hydrocarbyl compound containing at least one sp3 -hybridized halophoric carbon atom bearing at least two halogen atom substituents, at least one of which is a halogen atom having an... | 11/13/2001 |
| 6153322 | Methods for making fluorinated surface modifying agents, methods of using same and products made using same The present invention discloses fluorocarbon-containing surface modifying agents having an ω-fluorocarbon-containing tail group and a head group for reacting or interacting with surfaces such as metal, non-metallic, ceramic, other inorganic oxide or orga... | 11/28/2000 |
| 5808164 | Process for producing aromatic sulfides A process which can be used to produce an aromatic sulfide compound having the formula of (R4-n)(Xn)(W)Ar--S--R' is provided. The process comprises contacting, in the presence of a surfactant, a halo-substituted aromatic compound in ... | 09/15/1998 |
| 5750763 | Process for production of thioaryl compound The present invention provides: a process for producing an alkali metal salt of an arylmercaptan compound, represented by general formula (3): ##STR1## which process comprises reacting a disulfide compound represented by general formula: ##STR2#... | 05/12/1998 |
| 5741933 | Process for preparing aromatic or heteroaromatic sulfur compound The present invention provides a process for preparing an aromatic or heteroaromatic thiol represented by the formula (2), the process comprising hydrolyzing an aromatic or heteroaromatic halogenated methyl sulfide represented by the formula (1) Ar.paren ... | 04/21/1998 |
| 5728887 | Catalytic hydrogenolysis of organic thiocyanates and disulfides to thiols A process for the preparation of a thiol comprising reacting hydrogen with a thiocyanate or disulfide wherein the reaction with thiocyanate is conducted in the presence of a catalyst comprising a Group VIII metal or a mixture thereof; and the reaction wit... | 03/17/1998 |
| 5659088 | Process for the preparation of 4-fluorothiophenol 4-Fluorothiophenol is obtained in outstanding purifies and yields if 4-fluorobenzenesulphonyl chloride is reacted with sodium hydrogen sulphite solution to give a solution of sodium 4-fluorobenzenesulphinate, this solution is reduced with sulphur dioxide ... | 08/19/1997 |
| 5602245 | One vessel stereoselective glycosylation of purines and pyrimidines A process for the preparation of 2',3' dideoxynucleosides, 2'-deoxynucleosides, and 2',3'-dideoxy-2',3'-didehydronucleosides is provided that includes the synchronous addition of a stereoselecting moiety (a directing group) and a protected purine or pyrim... | 02/11/1997 |
| 5457235 | Halogenated diphenyldiacetylene liquid crystals The present invention provides liquid crystals that are diphenyldiacetylenes of the general formulas: ##STR1## where W, X, Y and Z are, independently of one another, a halogen atom, a hydrogen atom or a trihalomethyl group, T1 and T2 | 10/10/1995 |
| 5352785 | Continuous process for purifying perfluorochemical compositions A process for the purification of a perfluorochemical composition comprises continuously mixing the perfluorochemical composition, comprising a liquid mixture of inert perfluorochemicals (e.g., perfluoroalkanes, perfluoroethers, perfluoroaminoethers, or p... | 10/04/1994 |
| 5143915 | Dihydropyrimidine macrocyclic lactones useful as calcium antagonists and agonists A compound of the formula ##STR1## (symbols defined in the specification), its 3,4-dihydropyrimidine tautomer form and pharmaceutically acceptable salts thereof have calcium entry blocking activity. A process of preparation, pharmaceutical compositio... | 09/01/1992 |
| 4996347 | Novel beta-d-phenylthioxylosides, their method of preparation and their use as therapeutics The present invention relates, by way of novel industrial products, to osides selected from the group consisting of: (i) the ଲ-η-phenylthioxylosides of the formula: ##STR1## in which: R represents a hydrogen atom, a halogen atom, a nitro group or ... | 02/26/1991 |
| 4985582 | Pesticidal compounds Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2]-octanes and bicyclo-[2,2,3]-nonanes, having 2 or 3 ring hetero atoms selected from O, S and N substituted at the 1-position by a carbocyclic group other than an alkynylphenyl group, and substituted at the 4-positi... | 01/15/1991 |
| 4845300 | Synthesis of 2-(perfluoroalkyl) ethanethiols The subject of the invention is a process for the preparation of 2-(perfluoroalkyl)ethanethiols Rf CH2 CH2 SH, Rf denoting a straight-chain or branched perfluoroalkyl radical containing from 2 to 20 carbon atoms... | 07/04/1989 |
| 4783285 | Process for the nucleophilic substitution of unactivated aromatic and heteroaromatic substrates The nucleophilic substitution upon unactivated monocyclic or polycyclic aromatic or heteroaromatic substrates bearing suitable leaving groups can be achieved by catalyzing the substitution of said leaving groups by an anionic nucleophile with a cyclic or ... | 11/08/1988 |
| 4720590 | [2,2,2-trihalo-1-(trihalomethyl)]ethylidene-bisbenzenethiols [2,2,2-Trifluoro-1-(trifluoromethyl)]ethylidene-bisbenzenethiols are new compounds useful as precursors in the manufacture of polysulfide polymers and copolymers.... | 01/19/1988 |
| 4700006 | Carbamoylimidazole derivatives Novel carbamoylimidazole derivatives of the formula (I) ##STR1## in which R1 represents lower alkyl, lower alkoxy-lower alkyl or cycloalkyl having 3 to 8 carbon atoms, R2 represents fluoro-substituted lower alkyl, X represents oxygen... | 10/13/1987 |
| 4683091 | Process for the nucleophilic substitution of unactivated aromatic and heteroaromatic substrates The nucleophilic substitution upon unactivated monocyclic or polycyclic aromatic or heteroaromatic substrates bearing suitable leaving groups can be achieved by catalyzing the substitution of said leaving groups by an anionic nucleophile with a cyclic or ... | 07/28/1987 |
| 4478760 | Process for the preparation of fluorinated products The process for making a fluorinated product comprising reacting a perfluoroalkyl iodide and an olefin in the presence of a finely divided zinc and an acidic solvent.... | 10/23/1984 |
| 4343737 | Process for production of thiolcarbamates and the thiolcarbamates obtained by said process A process for producing a thiolcarbamate compound of the following formula ##STR1## wherein R1 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a halogen atom or a nitro gro... | 08/10/1982 |
| 4291177 | Process for obtaining halogenated diphenols Highly pure dihalodiphenols or predetermined, statistical mixtures of unreacted, monohalo- and dihalodiphenols are obtained reacting the diphenol, which is suspended or dissolved in a suitable solvent, with a halogen while concurrently purging the reactio... | 09/22/1981 |
| 4288628 | Process for the production of mono-halothiophenols and thiophenols A process for the production of a mono-halothiophenol, e.g. para-chlorothiophenol, and thiophenol. The process comprises reacting a reactant mixture of benzene and dihalobenzene, e.g. para-dichlorobenzene, with hydrogen sulfide in the presence of an absor... | 09/08/1981 |
| 4282391 | Continuous process for producing halogenated diphenols A continuous process for obtaining highly pure, high molecular weight aromatic polycarbonates from highly pure, halogenated diphenols.... | 08/04/1981 |
| 4278816 | Process for preparing phenols and thiophenols Phenols and thiophenols are produced by reacting the corresponding diphenyl ether compound with hydrogen sulfide in contact with an absorptive catalyst, such as charcoal, activated carbon, calcined petroleum coke, etc. Temperatures in the range of from ab... | 07/14/1981 |
| 4207266 | Process for the preparation of trifluoromethylated aromatic compounds This invention relates to a novel process for the direct trifluoromethylation of aromatic compounds via carbon tetrachloride and hydrogen fluoride in the presence of strong Bronsted or Lewis acids which give an acidic reaction (increase in concentration o... | 06/10/1980 |
| 4177198 | Process for preparing alkaline earth metal mercaptides A process for preparing alkaline earth metal mercaptides, useful as synergists for organotin stabilizers in halogen containing resins such as polyvinyl chloride, the process comprising preparing an alkaline earth metal alkoxide by reacting the metal oxide... | 12/04/1979 |
| 4147643 | Organic compositions useful as additives for fuels and lubricants Compositions useful as additives for fuels and lubricants can be made by reacting (A) an aromatic compound having an OH or SH group attached to an aromatic nucleus and an aromatic hydrogen atom (e.g., a substituted phenol wherein the substituent is an alk... | 04/03/1979 |
| 4135047 | Preparation of thioethers using a benzopinacol initiator This invention relates to a process for preparing thioethers by the addition of an SH group from a thiol-containing compound, e.g., an alcohol, ester or acid, across at least one double bond of an ethylenically unsaturated compound in the presence of an i... | 01/16/1979 |
| 4125554 | Iodinated thiolcarbonates and method for use as radiographic contrast agents Iodinated thiolcarbonates and a method for using the same as radiographic contrast agents in connection with such X-ray techniques as myleography, lymphography, hysterosalpingography, bronchography and sialography. The general formula of such iodonated th... | 11/14/1978 |
