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| Number | Title | Issue Date |
| 7645906 | Graded catalyst bed for methyl mercaptan synthesis A process and graded catalyst bed for selectively producing methyl mercaptan from methanol. The methanol is reacted with hydrogen sulfide, in the presence of a graded catalyst bed containing at least three types of nickel or cobalt molybdenum alumina catalysts to co... | 01/12/2010 |
| 7619121 | Method for isolating a thiol A method of detecting a member of the taxa actinomycetes is provided. A method also is provided for detecting mycothiol or precursor thereof. An antibody is provided when binds to mycothiol or a mycothiol precursor. A method is further provided for diagnosis of a su... | 11/17/2009 |
| 7582800 | Process for preparing alkyl mercaptans in a multizone fixed bed reactor The invention relates to a process for preparing alkyl mercaptans by catalytic gas phase reaction of alkanols and hydrogen sulphide over alkali metal tungstates, the reaction being performed in at least two successive reaction zones which contain catalysts of differ... | 09/01/2009 |
| 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 |
| 7250510 | Transition metal complexes of N-heterocyclic carbenes, method of preparation and use in transition metal catalyzed organic transformations The present invention relates to catalysts of transition metal complexes of N-heterocyclic carbenes, their methods of preparation and their use in chemical synthesis. The synthesis, ease-of-use, and activity of the compounds of the present invention are substantial ... | 07/31/2007 |
| 7250526 | Transfer hydrogenation process and catalyst A catalytic transfer hydrogenation process is provided. The catalyst employed in the process is a metal hydrocarbyl complex which is coordinated to defined bidentate ligands substituted with at least one group selected from an optionally substituted sulphonated hydr... | 07/31/2007 |
| 7235697 | Use of H2S-containing offgas streams for preparing sulfur-containing products The present invention relates to a process for preparing sulfur-containing compounds of the general formula I in which Q, R1 and R2 are each independently defined as follows: Q:... | 06/26/2007 |
| 7217843 | Method of making 2-thiols A process for selectively making 2-thiols from alpha olefins is described. The process includes contacting a linear or branched alpha olefin having with H2S in the presence of a catalyst and recovering the 2-thiol from a product mixture. The catalyst incl... | 05/15/2007 |
| 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 |
| 7053173 | Polymercaptopolyphenyl and process for preparation thereof Novel di-, tri-, or tetra-thiols or thiolates of biphenyl, biphenyl derivatives, terphenyl or terphenyl derivatives, as represented by general formula (A), wherein M1 and M2 are each independently selected from the group consisting of H, Na, Li... | 05/30/2006 |
| 6894194 | Production of dithiodiglycol In a process to make dithiodiglycol by oxidation of β-mercaptoethanol with sulfur, an improved product is recovered when a 1-10 mol % excess of β-mercaptoethanol is used and hydrogen sulfide is removed by vacuum or nitrogen sparge. A typical product contains 88.1 ... | 05/17/2005 |
| 6803406 | Electron donors, electron acceptors and adhesion promoters containing disulfide Disclosed are compounds comprising both disulfide functionality and electron donor functionality or alkoxy siloxane functionality, and curable compositions comprising compounds comprising both disulfide functionality and electron donor functionality, or electron acc... | 10/12/2004 |
| 6630578 | Thioether derivatives, their method for production and use Novel dendritic molecules are provided which respond immediately by emission of light when stimulated with light or electric energy, and are useful, for example, as switching material of memory. The dendritic molecules have a core, a branch structure comp... | 10/07/2003 |
| 6562988 | Methods and products relating to 16-HETE analogs The present invention includes 16-HETE analogs which are agonists and antagonists of 16-HETE. The compositions may be formulated in pharmaceutically acceptable formulations. The invention also includes methods and products for inhibiting neutrophil adhesi... | 05/13/2003 |
| 6545188 | Transfer hydrogenation process and catalyst A catalytic transfer hydrogenation process is provided. The catalyst employed in the process is a metal cyclopentadienyl complex which is coordinated to defined bidentate ligands. Preferred metals include rhodium, ruthenium and iridium. Preferred bidentat... | 04/08/2003 |
| 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 |
| 6376716 | Process for the preparation of aromatic sulfur compounds A process for the preparation of an aromatic thiophenol represented by the formula (I): Yn --Ar--(SH)m (I), wherein Ar represents an aromatic hydrocarbon; Y represents at least one substituent bonded to a carbon atom constituting the... | 04/23/2002 |
| 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 |
| 6359046 | Hydrocarbon core polysulfide silane coupling agents for filled elastomer compositions The present invention discloses novel hydrocarbon core polysulfide silanes and methods of preparing the hydrocarbon core polysulfide silanes. Preferably, the silanes of the present invention contain assemblies of a single unit of a hydrolyzable silane gro... | 03/19/2002 |
| 6320062 | 15-hydroxyeicosatetraenoic acid analogs with enhanced metabolic stability and methods of their use in treating dry eye disorders 15-HETE derivatives with enhanced metabolic stability and methods of their use for treating dry eye are disclosed.... | 11/20/2001 |
| 6268455 | Mercaptomethylphenyl group-containing diorganopolysiloxane and production process for the same Provided is a novel mercaptomethylphenyl group-containing diorganopolysiloxane compound represented by the following Formula (1): ##STR1## wherein R1 represents methyl or phenyl; R2 represents a linear or branched alkyl group having ... | 07/31/2001 |
| 6265476 | Radiation-curable binder compositions having high elongation and toughness after cure Radiation-curable compositions, having high elongation at break and toughness after cure can include the following pre-mixture components: a) a polymer, oligomer or monomer having at least one (meth)acrylate functional group; b) an oligomer or monomer, exclusi... | 07/24/2001 |
| 6248687 | Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter Presulfurizing process and presulfurization promoter for a desulfurization catalyst to be used in a hydrodesulfurization unit of petroleum refinery of high molecular hydrocarbons, in which fresh metal oxide in said desulfurization catalyst is sulfurized w... | 06/19/2001 |
| 6218578 | Polymeric film The invention relates to a polymeric film composed of an optically anisotropic material made from a cross-linked synthetic resin composition comprising a polymer network, being obtainable by copolymerization of a mixture comprising (a) at least one monome... | 04/17/2001 |
| 6198003 | Method for producing alkyl mercaptans and/or dialkyl monosulfides A highly efficient method of producing alkyl mercaptan and/or dialkyl monosulfides which involves employing carbon dioxide as an internal coolant is described. Only negligible amounts of carbonyl sulfide were formed. In addition, relatively easy separatio... | 03/06/2001 |
| 6187222 | Electrooptical liquid crystal system An electroptical system which between 2 electrode layers contains a PDLC film comprising a liquid crystal mixture forming micro-droplets in an optically isotropic, transparent polymer matrix, in which one of the refractive indices of the liquid crystal mixture... | 02/13/2001 |
| 6162952 | Production of mercaptans using heterogeneous acidic catalysts Disclosed is a method of making a mercaptan by reacting hydrogen sulfide with an olefin in the presence of a heterogeneous acidic catalyst. The catalyst can be made by calcining a mixture of a hydroxide, such as Zr(OH)4 or Ti(OH)4, w... | 12/19/2000 |
| 6054622 | Aromatic hydroxythiol synthesis using diazonium salts A method for the preparation of aromatic hydroxythiols including oxidizing an aromatic aminothiol to form an aminodisulfide compound; forming a bis-diazonium salt of the aminodisulfide compound; and reacting the bis-diazonium salt with water to form an ar... | 04/25/2000 |
| 6024937 | Aromatic amine substituted bridged nitrogen and sulfur donor atom ligands for imaging The present invention provides aromatic amine substituted metal chelating compounds, chelates and chelate-targeting moiety conjugates formed from the chelating compounds, and methods for making and using these compounds. Metals capable of being chelated b... | 02/15/2000 |
| 6004529 | Chelating agents The invention provides a complexant compound of formula I R3 S (CR12)n N(R2)i (CR12)n X(CR12)n N(R2)i (CR1... | 12/21/1999 |
| 5801260 | Carbonothioate phospholipid analogs as substrate of phospholipases and lipases Novel substrates of phospholipases, lysophospholipases and lipases are disclosed.... | 09/01/1998 |
| 5689005 | Reductive deoxygenation using a redox catalyst A process for the deoxygenation of organic oxo compounds, in particular phosphine oxides to phosphines and nitrobenzene to aniline, with reduced redox catalysts in a non-steady-state reaction with decoupled reductive regeneration of the redox catalyst ent... | 11/18/1997 |
| 5608115 | Polythiol useful for preparing sulfur-containing urethane-based resin and process for producing the same A novel polythiol having four or more functional groups, a process for producing the polythiol comprising reacting thiourea with a specific compound, a sulfur-containing urethane-based resin prepared from the polythiol and a lens made of the resin. The re... | 03/04/1997 |
| 5407960 | Mercaptocycloacyl aminoacid endopeptidase inhibitors Mercaptocycloacyl aminoacid inhibitors of endopeptidase of the formula ##STR1## or a pharmaceutically acceptable salt thereof, alone or in combination with an ACE inhibitor or an ANF, in the treatment of cardiovascular disorders such as hypertension,... | 04/18/1995 |
| 5362916 | Synthesis of mercaptaryl or hydroxyaryl enol ether alkali metal salts Hydroxyaryl enol ether alkali metal salts having the formula: ##STR1## in which T is a fused, substituted or unsubstituted polycycloalkylidene group, OR3 is an ether group Y is a light-emitting fluorophore-forming group which will be part ... | 11/08/1994 |
| 5157164 | Polymerizable antioxidant composition This invention is addressed to antioxidants which are polymerizable using the Ziegler catalyst system. The antioxidant of the present invention has the formula: ##STR1## wherein R1 and R2 are each aryl groups containing a hinder... | 10/20/1992 |
| 5017727 | Polymerizable antioxidant composition This invention is addressed to antioxidants which are polymerizable using the Ziegler catalyst system. The antioxidant of the present invention has the formula: ##STR1## wherein R1 and R2 are each aryl groups containing a hinder... | 05/21/1991 |
| 4857179 | Ore flotation and mineral flotation agents for use therein A process for the recovery of minerals from an ore or concentrate containing the same wherein the minerals are recovered in a froth from an aqueous pulp containing the ore or concentrate and wherein one or more mineral flotation agents are employed in the... | 08/15/1989 |
| 4612398 | Alkyl mercaptan process A process for making alkyl mercaptans in high yield while minimizing the formation of dialkyl sulfides is conducted by reacting an olefin with hydrogen sulfide in an inert solvent (e.g. CH2 Cl2) containing a Lewis Acid catalyst (e.g.... | 09/16/1986 |
| 4478865 | Utilization of sulfur containing terpenes as flavoring ingredients Sulfur containing terpenes of formula ##STR1## both in its racemic and enantiomeric forms possess useful organoleptic properties in developing especially fruity notes, more particularly of grapefruit character. (S)-(-)-1-p-menthene-8-thiol and (R)-(+... | 10/23/1984 |
