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| Number | Title | Issue Date |
| 8143463 | Process for the preparation of delmopinol and derivatives thereof A process for the preparation of delmopinol (3-(4-propylheptyl)-4-morpholinethanol) or a derivative or a pharmaceutically acceptable salt, or a solvate thereof, including a hydrate, comprises reacting oxazolidin [2,3-c]morpholine and a Grignard reagent, and optional... | 03/27/2012 |
| 8049047 | Process for the manufacture of 1,2-dichloroethane Process for the manufacture of 1,2-dichloroethane (DCE) starting with a hydrocarbon source which is subjected to a cracking thus producing a mixture of cracking products then subjected to treatment steps to obtain a mixture of products containing ethylene. The mixtu... | 11/01/2011 |
| 7816569 | Process for the preparation of chloromethane using recycled hydrogen chloride The invention relates to a process for the preparation of chloromethane from methanol and hydrogen chloride contaminated with Si compounds, the Si compounds being methylchlorosilanes, methoxymethylsilanes and hydrolysis and condensation products thereof, in which so... | 10/19/2010 |
| 7667083 | Fluorosulfonyl group-containing compound, method for its production and polymer thereof A compound containing two fluorosulfonyl groups which are groups convertible to sulfonic acid groups, an intermediate therefor, and methods for their production with high productivity, are provided. Also provided are a fluorosulfonyl group-containing polymer obtaine... | 02/23/2010 |
| 7323608 | Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds One aspect of the present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-sulfur bond between the sulfur atom of a t... | 01/29/2008 |
| 7060862 | Method for the preparation of α,α,α′,α′-tetrachloro-p-xylene with high purity A method of synthesizing a high purity product of α,α,α′,α′-tetrachloro-p-xylene is disclosed. The method includes carrying out a first stage reaction of terephthaldicarboxaldehyde with a mixture of SOCl2 and dimethylformamide (DMF) to obtain a pr... | 06/13/2006 |
| 6992231 | Method for the preparation of α,α, α′,α′-tetrachloro-p-xylene A synthesis method of α,α,α′,α′-tetrachloro-p-xylene is disclosed. The method includes reacting terephthaldicarboxaldehyde with a mixture of SOCl2 and dimethylformamide (DMF) to obtain a product mixture containing α,α,α′,α′-tetrachloro-p-x... | 01/31/2006 |
| 6881872 | Less colored trans-1,3-dichloropropene and process for its production Less colored trans-1,3-dichloropropene and a process for producing it, are presented. A composition comprising cis-1,3-dichloropropene, trans-1,3-dichloropropene and C6 compounds, is subjected to a distillation step and to a step of reacting chlori... | 04/19/2005 |
| 6844474 | Process for the production of difluoromethane The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity. ... | 01/18/2005 |
| 6743825 | Poly(bromoaryl)alkane additives and methods for their preparation and use An additive mixture useful as a flame retardant is described. The mixture is comprised of (i) a poly(bromophenyl)alkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four aryl groups and (ii) a poly(bromophenyl)bromoalkane h... | 06/01/2004 |
| 6627777 | Catalysts for hydrodechlorination of carbon tetrachloride to chloroform Catalysts for the fluid-bed hydrodechlorination of carbon tetrachloride to chloroform having high catalytic stability and comprising platinum supported on microspheroidal gamma alumina, characterized in that the platinum is in the form of particles disper... | 09/30/2003 |
| 6548705 | Compound compatible with inorganic solids, and with homopolymers and copolymers of propylene and of ethylene Disclosed is a compound comprising a saturated oligomer of isoprene bonded to a polar group, said compound having formula (I): ##STR1## in which R is H or a C1 -C4 alkyl, n is 2-17, and R' is a radical selected from the group consist... | 04/15/2003 |
| 6489524 | Selective bromination of aromatic compounds Aromatic substrates are Ar-brominated in high yield and selectivity by reacting the substrate with a brominating agent in the presence of at least about 0.19 gram per mmol of substrate of a zeolite catalyst which has an absorbed water content of no greate... | 12/03/2002 |
| 6403789 | Method of halogenating hydroxyl group A halogenating agent of the formula (1) and a method of halogenating hydroxyl group ##STR1## wherein R1 and R2 are the same or different and are each ethyl, propyl, isopropyl, butyl, isobutyl or allyl; X is chlorine atom or bromine ... | 06/11/2002 |
| 6255544 | Process for the manufacture of halocarbons A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1 R2 CBR3 R4 (where A, B, R1, R2, R3, and R4 are as defined in the speci... | 07/03/2001 |
| 6194567 | Halogenating agent and process for halogenating hydroxyl group A halogenating agent of the formula (1) and a method of halogenating hydroxyl group ##STR1## wherein R1 and R2 are the same or different and are each ethyl, propyl, isopropyl, butyl, isobutyl or allyl; X is chlorine atom or bromine ... | 02/27/2001 |
| 5955637 | Production of dihalomethanes containing fluorine and azeotropes of dihalomethanes containing chlorine with HF A process for producing difluoromethane is disclosed which includes the step of contacting a gaseous mixture containing CH2 Cl2 and hydrogen fluoride with a catalyst containing a catalytically effective amount of trivalent chromium s... | 09/21/1999 |
| 5914432 | Hydrogenation of halogenated compounds A halogenated compound (I) containing one or more >C.dbd.O, olefinic and/or aromatic >C.dbd.C< groups is hydrogenated for producing a halogenated compound (II) having no or a decreased level of >C.dbd.O, olefinic and/or aromatic >C.dbd.C< groups. In the h... | 06/22/1999 |
| 5831102 | Chemiluminescent 3-(substituted adamant-2'-ylidene) 1,2-dioxetanes Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile substituent thereof is intentionally clea... | 11/03/1998 |
| 5789633 | Azeotropic or azeotrope-like compositions of hydrofluoric acid with dihaloethanes The instant invention relates to azeotropic or azeotrope-like compositions of hydrofluoric acid with at least one of 1,1-dichloroethane, 1-chloro-1-fluoroethane and 1,1-difluoroethane. The invention also relates to manufacturing processes for separating h... | 08/04/1998 |
| 5750065 | Adsorption of PCB's using biosorbents A method for producing biosorbents for adsorption of PCB's in which at least one proteinaceous material is contacted with a molar excess of at least one PCB congener mixture, forming a protein/PCB congener mixture. The protein/PCB congener mixture is drie... | 05/12/1998 |
| 5734061 | Process for preparing spirocyclic lactams The invention is directed to an improved process for the preparation of spirocyclic lactams which utilizes diiodides in the spiro alkylation of lactams N-substituted with a tertiary amine group. The resultant spirocyclic lactams are useful in the producti... | 03/31/1998 |
| 5705728 | Process for the production of ethylene and mixture containing ethylene The present invention provides an efficient process for the production of ethylene or a mixture of ethylene and vinyl chloride, in which some 1,2-dichloroethane (EDC) may also be produced, by reacting chlorine with ethane. The process is characterized by ... | 01/06/1998 |
| 5663472 | Production of alkenes A process for reacting ethane with chlorine to produce a mixture of ethylene and vinyl chloride is disclosed. The process involves the intimate mixing of ethane and chlorine in an ethane to chlorine ratio of at least about 0.9:1 at a temperature such that... | 09/02/1997 |
| 5233075 | Process for the preparation of aromatic carboxylic acid esters A process comprising preparing an aromatic carboxylic ester and an alkyl iodide by carboxylating an aromatic iodide in the presence of an alkylating agent and a catalytic amount of a transition metal under aromatic carboxylic ester and alkyl iodide formin... | 08/03/1993 |
| 5208396 | Production of saturated halohydrocarbons A process is disclosed for producing saturated halohydrocarbons containing fluorine which comprises the step of reacting certain saturated or olefinic compounds at an elevated temperature with hydrogen in the presence of at least one material selected fro... | 05/04/1993 |
| 5204441 | Polyfluorinated, branched-chain diols and diisocyanantes and fluorinated polyurethanes prepared therefrom Branched-chain diols and a method of forming them by reacting 1,4-diiodoperfluorobutane and perfluoropropylene to obtain branched-chain diiodide adducts thereof, reacting the diiodide adducts with ethylene to obtain I--CH2 CH2 --R--C... | 04/20/1993 |
| 5097082 | Production of saturated halohydrocarbons A process is disclosed for producing saturated halohydrocarbons containing fluorine which comprises the step of reacting certain saturated or olefinic compounds at an elevated temperature with hydrogen in the presence of at least one material selected fro... | 03/17/1992 |
| 4935559 | Olefination of iodoaromatic compounds A method of preparing an aryl alkene compound comprising reacting an iodoaromatic compound an alkene and an alkanol in the presence of a palladium catalyst and the absence of a Bronsted base.... | 06/19/1990 |
| 4912250 | Process for the co-production of aromatic carboxylate and alkyl iodide Disclosed is a process for the co-production of an aromatic carboxylic esters and alkyl iodide by the carbonylation of an aromatic iodide in the absence of a Bronsted base and in the presence of an ether and a nickel catalyst.... | 03/27/1990 |
| 4904817 | Process for the preparation of aromatic carboxylic acid esters Disclosed is an improved process for the manufacture of aromatic carboxylic acid esters by the carbonylation of aromatic iodides wherein the amount of the corresponding unesterified carboxylic acid in the product obtained from the process is minimized. Th... | 02/27/1990 |
| 4866200 | Process for the coproduction of aromatic carboxylates and alkyl iodides Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an alkanol and a palladium catalyst.... | 09/12/1989 |
| 4851564 | Process for the co-production of aromatic carboxylates and alkyl iodides Disclosed is a process for the co-production of aromatic carboxylates and alkyl iodides by the carbonylation of aromatic iodides in the presence of an alkanol and a rhodium catalyst.... | 07/25/1989 |
| 4847406 | Process for the co-production of aromatic carboxylates and alkyl iodides Disclosed is a process for the co-production of aromatic carboxylates and alkyl iodides by the carbonylation of aromatic iodides in the presence of an alkanol and a ruthenium catalyst.... | 07/11/1989 |
| 4827018 | Process for the co-production of aromatic carboxylates and alkyl iodides Disclosed is a process for the co-production of aromatic carboxylates and alkyl iodides by the carbonylation of aromatic iodides in the presence of an alkanol and a nickel catalyst.... | 05/02/1989 |
| 4826672 | Astatinated organic compounds Methods and kits for incorporating a radioactive astatine isotope (particularly 211 At) into an organic compound by electrophilic astatodestannylation of organostannanes.... | 05/02/1989 |
| 4806676 | Carbonylation process for preparation of aromatic carboxylic esters and an alkyl iodide A process for preparing an aromatic carboxylic ester and an alkyl iodide by carbonylating an aromatic iodide in the presence of an ether, a catalytic amount of a transition metal and a strong acid promoter.... | 02/21/1989 |
| 4804763 | Method for preparing chlorine-containing derivatives of pyridine compounds The reactions of chlorination of the pyridine compounds are conducted by means of molecular chlorine, with the use, as free-radical forming initiator, of a decachlorobutane or an octachlorobutene such as octachlorobutene-1 or a crude mixture of these chlo... | 02/14/1989 |
| 4803296 | Process for the co-production of aromatic carboxylates and alkyl iodides A process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and an iridium catalyst.... | 02/07/1989 |
| 4780563 | Process for the co-production of aromatic carboxylates and alkyl iodides Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and a palladium catalyst.... | 10/25/1988 |
