Benzene Ring Bonded Directly To The -o-c(=o)o- Group Patents (Class 558/270)
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Patent number: 11419841Abstract: The present invention relates to compound of formula (I): wherein R is O—R3 or R1 and R2 are identical or different and are each independently H, (C1-C6)alkyl, —CO—(C1-C21)alkyl or —CO—(C11-C21)alkenyl group, provided that at least one of R1 or R2 is H or (C1-C6)alkyl, R3 is a —CO—(C11-C21)alkyl or —CO—(C11-C21)alkenyl group, or its pharmaceutically acceptable salts, racemates, diastereoisomers, enantiomers, or mixtures thereof, for use in prevention and/or treatment of a disease or disorder linked to an exacerbated vascular, lymphatic or mucosal permeability.Type: GrantFiled: November 12, 2018Date of Patent: August 23, 2022Inventors: Céline Crauste, Joseph Vercauteren, Francisco Veas, Thierry Durand, Nicolas Blondeau
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Patent number: 11029568Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.Type: GrantFiled: January 5, 2018Date of Patent: June 8, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Suk Hoon Kang, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
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Patent number: 9765013Abstract: A method for preparing an aromatic carbonate, of the present invention, comprises the steps of: (A) preparing a reaction mixture containing an aliphatic carbonate by reacting an organometallic compound and carbon dioxide; and (B) preparing an aromatic carbonate by reacting the reaction mixture and an aromatic alcohol. The method for preparing an aromatic carbonate allows an aromatic carbonate to be economically prepared in a high yield by using carbon dioxide as a carbonyl supply source.Type: GrantFiled: January 16, 2014Date of Patent: September 19, 2017Assignee: Lotte Advanced Materials Co., Ltd.Inventors: Chang Hoon Lee, Dong Baek Kim, Yeon Ju Lee, O Sung Kwon, Il Hwan Yang
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Patent number: 8952189Abstract: The invention relates to a process for preparing diaryl carbonates and/or alkyl aryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using a reactive dividing wall column.Type: GrantFiled: April 7, 2010Date of Patent: February 10, 2015Assignee: Bayer MaterialScience AGInventors: Andre Düx, Helmut Mothes, Kaspar Hallenberger, Georg Ronge, Rafael Warsitz, Pieter Ooms, Johann Rechner
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Patent number: 8802884Abstract: This invention provides a method for producing an alkylaryl carbonate comprising: a) contacting a stream comprising an aromatic hydroxy compound and a stream comprising a dialkylcarbonate in a reactive distillation column containing a bed of heterogeneous transesterification catalyst, the bed having a top and a bottom; and b) withdrawing a product stream comprising the alkylaryl carbonate from the reactive distillation column wherein the aromatic hydroxy compound is fed to the column at a first feed point located above the top of the catalyst bed.Type: GrantFiled: December 5, 2012Date of Patent: August 12, 2014Assignee: Shell Oil CompanyInventor: Garo Garbis Vaporciyan
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Publication number: 20140121187Abstract: Disclosed are 1,3-Dioxoindene derivatives, pharmaceutically acceptable salts thereof or enantiomers, a preparation method thereof, and a pharmaceutical composition for the prevention or treatment of viral diseases, comprising the same as an active ingredient. The 1,3-Dioxoindene derivatives have excellent inhibitory activity against picornaviruses including coxsackie-, entero-, echo-, Polio-, and rhinoviruses, as well as exhibiting low cytotoxicity, so that they can be useful as an active ingredient of a pharmaceutical composition for the prevention or treatment of viral diseases including poliomyelitis, paralysis, acute hemorrhagic conjunctivitis, viral meningitis, hand-foot-and-mouth disease, vesicular disease, hepatitis A, myositis, myocarditis, pancreatitis, diabetes, epidemic myalgia, encephalitis, flu, herpangina, foot-and-mouth disease, asthma, chronic obstructive pulmonary disease, pneumonia, sinusitis or otitis media.Type: ApplicationFiled: June 18, 2012Publication date: May 1, 2014Applicants: KATHOLIEKE UNIVERSITEIT LEUVEN K.U. LEUVEN R & D, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Young Sik Jung, Chong Kgo Lee, Ihl Young Choi, Hae Soo Kim, Pil Ho Kim, Soo Bong Han, Johan Neyts, Hendrik Jan Thibaut
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Patent number: 8697332Abstract: An object of the present invention is to provide a base generator which has sensitivity and is applicable to a wide range of applications, and a photosensitive resin composition which is applicable to a wide range of applications due to the structure of a polymer precursor in which reaction into a final product is promoted by a basic substance or by heating in the presence of a basic substance. The base generator generates a base by exposure to electromagnetic radiation and heating. The photosensitive resin composition comprises a polymer precursor in which reaction into a final product is promoted by the base generator and a basic substance or by heating in the presence of a basic substance.Type: GrantFiled: March 26, 2010Date of Patent: April 15, 2014Assignee: Dai Nippon Printing Co., Ltd.Inventors: Mami Katayama, Shunji Fukuda, Katsuya Sakayori, Kouji Kawaguchi
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Publication number: 20140081039Abstract: In an embodiment, a process for preparing an alkyl aryl carbonate and a diaryl carbonate, comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in a production column 200, 300 to form the alkyl aryl carbonate and the diaryl carbonate; directing a bottom stream of the production column to a reboiler 205, 305, wherein the bottom stream comprises the alkyl aryl carbonate and the diaryl carbonate; heating the bottom stream in the reboiler 205, 305 with heat from an overhead stream of the production column 200, 300 to result in a heated bottom stream; directing a first portion of the heated bottom stream back into the production column 200, 300, wherein the first portion comprises phenol; and collecting the diaryl carbonate and the alkyl aryl carbonate from a second portion of the heated bottom stream.Type: ApplicationFiled: September 19, 2013Publication date: March 20, 2014Applicant: SABIC Innovative Plastics IP B.V.Inventors: Sergio Ferrer Nadal, Ignacio Vic Fernandez, Jose Antonio Caballero, Juan Javaloyes Anton
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Patent number: 8652353Abstract: A novel liquid crystalline carbonate and the mixture containing the same: wherein R3 is an alkyl (H2n+1Cn) or an alkenyl (H2n?1Cn) group, each of 1 to 12 carbon atoms, the ring A is laterally unsubstituted benzene or pyridine or pyrimidine or trans-substituted cyclohexane ring, symbol r is 0 to 2; the lateral substituents: X2, X3, X4 and X5 in the benzene rings represent independently hydrogen or fluorine or chlorine atoms, X1 is hydrogen or fluorine atom and simultaneously at least one of the substituents: X2, X3 and X4 is fluorine or chlorine atoms, Y is an alkyl or an alkyloxy or an alkenyl or an alkenyloxy group, each of 1 to 12 carbon atoms or hydrogen or fluorine or chlorine atom or NCS group are described.Type: GrantFiled: July 19, 2012Date of Patent: February 18, 2014Assignee: Wojskowa Akademia TechnicznaInventors: Roman Slawomir Dabrowski, Przemyslaw Kula, Artur Choluj, Jerzy Dziaduszek, Katarzyna Garbat
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Publication number: 20140038060Abstract: The present invention is to provide a nonaqueous electrolytic solution capable of enhancing electrochemical characteristics in a broad temperature range, an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound. There are provided a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which comprises at least one halogenoalkylbenzene compound represented by the following general formula (I), an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound.Type: ApplicationFiled: March 30, 2012Publication date: February 6, 2014Applicant: UBE INDUSTRIES, LTD.Inventor: Koji ABE
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Patent number: 8530606Abstract: The invention relates to a process for preparing a diaryl carbonate from a dialkyl carbonate and an aryl alcohol using a series of reactive distillation columns.Type: GrantFiled: November 30, 2010Date of Patent: September 10, 2013Assignee: Shell Oil CompanyInventors: Timothy Michael Nisbet, Garo Garbis Vaporciyan, Cornelis Leonardus Maria Vrouwenvelder
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Patent number: 8507711Abstract: A flame-retardant compound has a structure represented by formula (2): (Ar2—O—CO—O—)nA2-X-A1(—O—CO—O—Ar1)m??(2) wherein A1 and A2 each independently represents a substituted or unsubstituted aromatic group; X represents a divalent group represented by —S—, —O—, —CO—, —CN—, —CH2—, —C(CH3)2—, —CH(CH3)—, —NH—, —SO— or —SO2—; Ar1 and Ar2 each independently represents a substituted or unsubstituted phenyl group; and m and n each independently represents an integer of 1 to 3.Type: GrantFiled: December 20, 2011Date of Patent: August 13, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Masato Mikami, Masayuki Okoshi, Kazuya Yamanoi
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Publication number: 20130165669Abstract: A method of producing a carbonate product including mixing a DMC and methanol mixture with an alcohol, reacting the DMC with the alcohol to form carbonate product, and removing a substantial portion of unreacted DMC and methanol. In one embodiment, the method may be repeated to reach a desired alcohol conversion by adding more DMC and methanol mixture.Type: ApplicationFiled: August 19, 2011Publication date: June 27, 2013Applicant: HUNTSMAN PETROCHEMICAL LLCInventors: Haibo Zhao, Mark Posey
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Publication number: 20130150609Abstract: This invention provides a method for producing an alkylaryl carbonate comprising: a) contacting a stream comprising an aromatic hydroxy compound and a stream comprising a dialkylcarbonate in a reactive distillation column containing a bed of heterogeneous transesterification catalyst, the bed having a top and a bottom; and b) withdrawing a product stream comprising the alkylaryl carbonate from the reactive distillation column wherein the aromatic hydroxy compound is fed to the column at a first feed point located above the top of the catalyst bed. This invention further provides an apparatus suitable for carrying out this method.Type: ApplicationFiled: December 5, 2012Publication date: June 13, 2013Applicant: SHELL OIL COMPANYInventor: SHELL OIL COMPANY
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Publication number: 20130134354Abstract: The invention provides a compound having two polymerizable groups, wherein one is bonded directly to the ring and the other is bonded to the ring through a spacer, as a compound in which the polymerizability is not decreased and the solubility is high in a liquid crystal composition. A compound represented by formula (1), wherein in formula (1), for example, A1 and A2 are 1,4-phenylene in which at least one hydrogen has been replaced by fluorine; Z1 is alkylene having 1 to 12 carbons; Z2 is alkylene having 1 to 12 carbons; X1 is hydrogen, fluorine, methyl or trifluoromethyl; P1 is a polymerizable group; and a is an integer from 0 to 3.Type: ApplicationFiled: August 27, 2012Publication date: May 30, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: YASUYUKI GOTOH, MAIKO MATSUKUMA
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Patent number: 8450517Abstract: The invention is to provide a photosensitive compound suitable for a photoalignment method, a photosensitive polymer prepared from the compound, a photoaligning agent by using the compound and a liquid crystal alignment film prepared from the photoaligning agent. A photosensitive compound represented by formula (1): in formula (1), Y1 is a divalent group represented by formula (2-1) or (2-2); A1 is 1,4-phenylene or 1,4-cyclohexylene; Z1 is a single bond, —COO— or —OCO—; R1 and R2 are each independently hydrogen, fluorine or alkyl having 1 to 5 carbons; Q1 is independently a single bond or alkylene having 1 to 12 carbons; and n is 0 or 1. In formulas (2-1) and (2-2), W1 and W2 are each independently hydrogen, alkyl having 1 to 3 carbons or alkoxy having 1 to 3 carbons.Type: GrantFiled: September 20, 2011Date of Patent: May 28, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Daisuke Ootsuki, Kazumi Nara, Junichi Inagaki, Mayumi Tanabe
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Patent number: 8361691Abstract: A radiation-sensitive composition contains (A) a low-molecular-weight compound having one or more acid-dissociable groups which decompose by the action of an acid to enhance solubility in an alkaline developing solution and one or more radiation-sensitive acid-generating groups which generate an acid upon application of an active ray or radiation per molecule, and having a polystyrene-reduced number-average molecular weight (Mn) measured by gel permeation chromatography (GPC) of 500 to 4,000, and (B) a solvent.Type: GrantFiled: August 28, 2007Date of Patent: January 29, 2013Assignee: JSR CorporationInventors: Nobuji Matsumura, Daisuke Shimizu, Toshiyuki Kai
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Publication number: 20130020532Abstract: A novel liquid crystalline carbonate and the mixture containing the same: wherein R3 is an alkyl (H2n+1Cn) or an alkenyl (H2n?1Cn) group, each of 1 to 12 carbon atoms, the ring A is laterally unsubstituted benzene or pyridine or pyrimidine or trans-substituted cyclohexane ring, symbol r is 0 to 2; the lateral substituents: X2, X3, X4 and X5 in the benzene rings represent independently hydrogen or fluorine or chlorine atoms, X1 is hydrogen or fluorine atom and simultaneously at least one of the substituents: X2, X3 and X4 is fluorine or chlorine atoms, Y is an alkyl or an alkyloxy or an alkenyl or an aikenyloxy group, each of 1 to 12 carbon atoms or hydrogen or fluorine or chlorine atom or NCS group are described.Type: ApplicationFiled: July 19, 2012Publication date: January 24, 2013Inventors: Roman Slawomir Dabrowski, Przemyslaw Kula, Artur Choluj, Jerzy Dziaduszek, Katarzyna Garbat
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Publication number: 20120315393Abstract: A printing or coating composition has a non-volatile liquid vehicle carrying a conductive polymer to be deposited on a substrate and is cleavable by heat or acidification without decomposition of said material, cleavage of said vehicle producing decomposition products that are more volatile than said vehicle and which can be evaporated to dry the composition. Suitably, that vehicle is a carbonic acid diester or a malonic acid diester, e.g. of the formula: wherein R2 is an organic substituent such that R2—OH is a volatile alcohol; R1 is an aliphatic or aromatic substituent of more than three carbon atoms such that is volatile; and R3 is C1-3 alkyl.Type: ApplicationFiled: July 30, 2012Publication date: December 13, 2012Applicant: THE TECHNICAL UNIVERSITY OF DENMARKInventors: Frederik KREBS, Mikkel Joergensen
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Patent number: 8309750Abstract: The invention relates to a process for the preparation of a diaryl carbonate, which comprises: (i) contacting an aromatic non-hydroxy compound with a carboxylic acid of formula HOC(?O)R1 (I), wherein R1 is a hydrocarbyl group, and with an oxygen containing gas in the presence of a catalyst, resulting in water and an aromatic carboxylic acid ester of formula R2OC(?O)R1 (II), wherein R2 is an aryl group originating from the aromatic non-hydroxy compound; and (ii) contacting the aromatic carboxylic acid ester of formula (II) from step (i) with a dialkyl carbonate of formula R3OC(?O)OR4 (III), wherein R3 and R4 are the same or different and are alkyl groups, in the presence of a catalyst, resulting in a diaryl carbonate of formula R2OC(?O)OR2 (IV) and an alkyl carboxylic acid ester of formula R5OC(?O)R1 (V), wherein R5 is R3 or R4.Type: GrantFiled: August 19, 2008Date of Patent: November 13, 2012Assignee: Shell Oil CompanyInventor: Garo Garbis Vaporciyan
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Patent number: 8257786Abstract: A printing or coating composition has a non-volatile liquid vehicle carrying a conductive polymer to be deposited on a substrate and is cleavable by heat or acidification without decomposition of said material, cleavage of said vehicle producing decomposition products that are more volatile than said vehicle and which can be evaporated to dry the composition. Suitably, that vehicle is a carbonic acid diester or a malonic acid diester, e.g. of the formula: wherein R2 is an organic substituent such that R2—OH is a volatile alcohol; R1 is an aliphatic or aromatic substituent of more than three carbon atoms such that is volatile; and R3 is C1-3 alkyl.Type: GrantFiled: April 13, 2007Date of Patent: September 4, 2012Assignee: The Technical University of DenmarkInventors: Frederik Krebs, Mikkel Joergensen
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Publication number: 20120172568Abstract: Bis-Phenol A (BPA) can now be replaced in industrial processes by BPA substitutes. The BPA substitutes can have structures that are derivatives of BPA. The BPA substitutes can be used in preparing epoxy composition, polycarbonate compositions, and polysulfonate compositions or for other uses in place of BPA.Type: ApplicationFiled: December 29, 2010Publication date: July 5, 2012Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Masahiro Ueda
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Publication number: 20120009133Abstract: A poly(non-conjugated diene) based sunscreen has a plurality of repeating units where each repeating unit has at least one UV absorbing chromophore that is situated between and connected by chains to two mono-ene units where each UV absorbing chromophore absorb UVA and UVB light. The poly(non-conjugated diene) based sunscreen can be included with a vehicle for application to the skin to prevent sunburn. The poly(non-conjugated diene) based sunscreen can be prepared by acyclic diene metathesis polymerization.Type: ApplicationFiled: April 1, 2010Publication date: January 12, 2012Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: James Klein Leonard, Kenneth Berry Sloan, Kenneth Boone Wagener
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Patent number: 8044226Abstract: A high-purity diphenyl carbonate, wherein the diphenyl carbonate is unsubstituted or substituted with a lower hydrocarbon, and has a halogen content of not more than 0.1 ppm, a content of an intermediate boiling point material of not more than 100 ppm, and a content of by-products having a higher boiling point than that of said diphenyl carbonate of not more than 100 ppm. A specific industrially useful process for the production of a high-purity diaryl carbonate in which a diaryl carbonate having low contents of intermediate boiling point and high boiling point impurities is produced is disclosed. As a starting material, a reaction mixture containing an alkyl aryl carbonate obtained through a transesterification reaction between a dialkyl carbonate and an aromatic monohydroxy compound is used. The process in which separation by distillation is carried out uses three distillation columns in a specified order.Type: GrantFiled: July 23, 2009Date of Patent: October 25, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Shinsuke Fukuoka, Hironori Miyaji, Hiroshi Hachiya, Kazuhiko Matsuzaki
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Publication number: 20110136763Abstract: This invention largely relates to 3,4,6-trisubstituted benzoxaborole compounds, and their use for treating bacterial infections.Type: ApplicationFiled: July 27, 2010Publication date: June 9, 2011Applicants: Anacor Pharmaceuticals, Inc., GlaxoSmithKline LLCInventors: Yi Xia, Michael Richard Kevin Alley, Yasheen Zhou, Rajeshwar Singh, Charles Ding, Kathy Cao, Jacob J. Plattner, Ligong Ou, Guofeng Jia, Neerja Saraswat, Sreekanth Ramachandran, Ding Zhou
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Publication number: 20110071178Abstract: Disclosed are compounds and compositions that inhibit the action of monoacylglycerol lipase (MGL) and fatty acid amide hydrolase (FAAH), methods of inhibiting MGL and FAAH, methods of modulating cannabinoid receptors, and methods of treating various disorders related to the modulation of cannabinoid receptors.Type: ApplicationFiled: April 16, 2010Publication date: March 24, 2011Applicant: Northeastern UniversityInventors: Alexandros Makriyannis, Spyridon P. Nikas, Shakiru O. Alapafuja, Vidyanand G. Shukla
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Patent number: 7884251Abstract: It is an object of the present invention to provide a specific industrial separation process that enables an alcohol to be separated out efficiently and stably for a prolonged period of time from a large amount of a low boiling point reaction mixture containing a by-produced alcohol when mass-producing aromatic carbonates on an industrial scale by subjecting a dialkyl carbonate and an aromatic monohydroxy compound to transesterification reaction in a reactive distillation column in which a catalyst is present. Although there have been various proposals regarding processes for the production of aromatic carbonates by means of a reactive distillation method, these have all been on a small scale and short operating time laboratory level, and there have been no disclosures whatsoever on a specific process or apparatus enabling mass production on an industrial scale to be carried out stably for a prolonged period of time.Type: GrantFiled: September 12, 2005Date of Patent: February 8, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Shinsuke Fukuoka, Hironori Miyaji, Hiroshi Hachiya, Kazuhiko Matsuzaki
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Publication number: 20100261928Abstract: The invention relates to a process for preparing diaryl carbonates and/or alkyl aryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using a reactive dividing wall column.Type: ApplicationFiled: April 7, 2010Publication date: October 14, 2010Applicant: Bayer MaterialScience AGInventors: Andre DÜX, Helmut Mothes, Kaspar Hallenberger, Georg Ronge, Rafael Warsitz, Pieter Ooms, Johann Rechner
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Patent number: 7812189Abstract: According to the present invention, there are provided a high boiling point material separating column A and a diphenyl carbonate purifying column B each comprising a continuous multi-stage distillation column having specified structures, and there is provided a specific process that enables a high-purity diphenyl carbonate which is important as a raw material of a high-quality and high-performance polycarbonate to be produced stably for a prolonged period of time on an industrial scale of not less than 1 ton/hr from a reaction mixture containing the diphenyl carbonate using an apparatus in which these two continuous multi-stage distillation columns are connected together.Type: GrantFiled: August 24, 2005Date of Patent: October 12, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Shinsuke Fukuoka, Hiroshi Hachiya, Kazuhiko Matsuzaki, Hironori Miyaji
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Patent number: 7777067Abstract: It is an object of the present invention to provide, for the case of continuously producing aromatic carbonates containing a diaryl carbonate as a main product by taking an alkyl aryl carbonate as a starting material, which is obtainable through a transesterification reaction between a dialkyl carbonate and an aromatic monohydroxy compound, using a continuous multi-stage distillation column in which a catalyst is present, and continuously feeding the starting material into the continuous multi-stage distillation column, a specific process that enables the diaryl carbonate to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of not less than 1 ton per hour.Type: GrantFiled: July 11, 2005Date of Patent: August 17, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Shinsuke Fukuoka, Hiroshi Hachiya, Kazuhiko Matsuzaki
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Publication number: 20100185006Abstract: The present invention includes methods for preparing resveratrol, resveratrol esters and substituted and unsubstituted stilbenes of the formula given below; where each Y is —O or halogen, each Z is —O or halogen, each n and each m is independently the value of 0, 1, 2, 3, 4 or 5, each A and each B is independently selected from Pn, R or absent, each V and each W is independently selected from Pn, straight or branched alkyl of from 2 to 6 carbon atoms and cycloalkyl of from 3 to 8 carbon atoms, alkoxy, phenyl, benzyl or halogen, R is independently selected from the group comprising alkyl with at least one carbon atom, aryl and aralkyl, Pn is an alcohol protecting group and diastereoisomers of the foregoing. The compounds are made from a multi-step process including a N-heterocyclic carbene-type ligand coupling in the presence of a base with benzyol halide and styrene coupling partners. These compounds show increased stability for use in the food, cosmetic and pharmaceutical industries.Type: ApplicationFiled: July 15, 2009Publication date: July 22, 2010Applicant: Brigham Young UniversityInventors: Merritt B. Andrus, Jing Liu
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Patent number: 7629485Abstract: Production of an aromatic carbonic ester through an ester exchange reaction between a starting material and a reactant while distilling by-product alcohols and/or by-product dialkyl carbonates off the reaction system, wherein use is made of a specified catalyst.Type: GrantFiled: December 16, 2005Date of Patent: December 8, 2009Assignee: Asahi Kasei Chemicals CorporationInventor: Nobuhisa Miyake
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Patent number: 7622601Abstract: A specific industrially useful process for the production of a high-purity diaryl carbonate in which a diaryl carbonate having low contents of intermediate boiling point and high boiling point impurities is produced is disclosed. As a starting material, a reaction mixture containing an alkyl aryl carbonate obtained through a transesterification reaction between a dialkyl carbonate and an aromatic monohydroxy compound is used. The process in which separation by distillation is carried out uses three distillation columns in a specified order. Moreover, it is particularly preferable if a reactive distillation column and the three distillation columns, each of which has a specified structure, and the three distillation columns are each operated under specified distillation conditions.Type: GrantFiled: October 12, 2005Date of Patent: November 24, 2009Assignee: Asahi Kasei Chemicals CorporationInventors: Shinsuke Fukuoka, Hironori Miyaji, Hiroshi Hachiya, Kazuhiko Matsuzaki
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Publication number: 20090280433Abstract: A radiation-sensitive composition contains (A) a low-molecular-weight compound having one or more acid-dissociable groups which decompose by the action of an acid to enhance solubility in an alkaline developing solution and one or more radiation-sensitive acid-generating groups which generate an acid upon application of an active ray or radiation per molecule, and having a polystyrene-reduced number-average molecular weight (Mn) measured by gel permeation chromatography (GPC) of 500 to 4,000, and (B) a solvent.Type: ApplicationFiled: August 28, 2007Publication date: November 12, 2009Applicant: JSR CorporationInventors: Nobuji Matsumura, Daisuke Shimizu, Toshiyuki Kai
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Patent number: 7584629Abstract: The invention relates to a process for the partial or complete separation of a mixture comprising hydrogen chloride and phosgene, possibly solvents and possibly low boilers and inerts as are typically obtained in the preparation of isocyanates by reaction of amines with phosgene, which comprises firstly carrying out a partial or complete condensation of phosgene, then a distillation or stripping step in a column to remove the hydrogen chloride from the bottom product phosgene and subsequently a scrub of the top product hydrogen chloride by means of the process solvent to absorb the phosgene in the process solvent. An after-purification by means of adsorption on activated carbon or by another suitable method can subsequently be carried out to remove solvent residues.Type: GrantFiled: December 13, 2003Date of Patent: September 8, 2009Assignee: BASF AktiengesellschaftInventors: Martin Sohn, Eckhard Stroefer, Filip Nevejans, Ulrich Penzel, Hans-Juergen Pallasch, Peter Van Den Abeel, Filip Deberdt, Jan D. Jacobs, Wolfgang Mackenroth
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Publication number: 20090203933Abstract: Processes for the alcoholysis, inclusive of transesterification and/or disproportionation, of reactants are disclosed. The alcoholysis process may include feeding reactants and a trace amount of soluble organometallic compound to a reactor comprising a solid alcoholysis catalyst, wherein the soluble organometallic compound and the solid alcoholysis catalyst each independently comprise a Group II to Group VI element, which may be the same element in various embodiments. As an example, diphenyl carbonate may be continuously produced by performing transesterification over a solid catalyst followed by disproportionation, where a trace amount of soluble organometallic compound is fed to the transesterification reactor.Type: ApplicationFiled: February 11, 2008Publication date: August 13, 2009Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventor: J. Yong Ryu
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Publication number: 20090163734Abstract: It is an object of the present invention to provide a specific process that enables a high-purity diphenyl carbonate required for producing a high-quality high-performance aromatic polycarbonate to be produced industrially in a large amount (e.g. not less than 1 ton/hr) stably for a prolonged period of time (e.g. not less than 1000 hours, preferably not less than 3000 hours, more preferably not less than 5000 hours) from a cyclic carbonate and a phenol.Type: ApplicationFiled: December 12, 2006Publication date: June 25, 2009Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Shinsuke Fukuoka, Hironori Miyaji, Hiroshi Hachiya, Kazuhiko Matsuzaki
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Publication number: 20090121187Abstract: The invention includes compounds represented by Formula (1): wherein R represents hydrogen or methyl; A represents alkylene having from 1 to 12 carbon atoms, wherein in the alkylene, arbitrary —CH2— may be replaced by —O—, —S—, —CH?CH—, —CO—, —COO— or —OCO—; X and Y each independently represent an aromatic ring or a cyclohexane ring, wherein in the rings, arbitrary hydrogen may be replaced by alkyl having from 1 to 3 carbon atoms; Z independently represents a single bond, —O—, —S—, —COO—, —OCO—, —CON(R1)— or —N(R1)CO—, wherein R1 represents hydrogen or methyl; and m represents an integer of from 0 to 3.Type: ApplicationFiled: November 7, 2008Publication date: May 14, 2009Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventor: MAYUMI TANABE
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Patent number: 7531616Abstract: It is an object of the present invention to provide a specific process that enables aromatic carbonates to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of not less than 1 ton per hour from a dialkyl carbonate and an aromatic monohydroxy compound using two continuous multi-stage distillation columns. Although there have been various proposals regarding processes for the production of aromatic carbonates by means of a reactive distillation method, these have all been on a small scale and short operating time laboratory level, and there have been no disclosures whatsoever on a specific process or apparatus enabling mass production on an industrial scale.Type: GrantFiled: July 12, 2005Date of Patent: May 12, 2009Assignee: Asahi Kasei Chemicals CorporationInventors: Shinsuke Fukuoka, Hiroshi Hachiya, Kazuhiko Matsuzaki
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Publication number: 20090118530Abstract: It is an object of the present invention to provide a specific process that enables an aromatic carbonate required for producing a high-quality high-performance aromatic polycarbonate to be produced industrially in a large amount (e.g. not less than 1 ton/hr) stably for a prolonged period of time (e.g. not less than 1000 hours, preferably not less than 3000 hours, more preferably not less than 5000 hours) from a cyclic carbonate and an aromatic monohydroxy compound. When producing an aromatic carbonate from a cyclic carbonate and an aromatic monohydroxy compound, the above object can be attained by carrying out a step of: (I) producing a dialkyl carbonate and a diol using a reactive distillation column having a specified structure, and (II) producing the an aromatic carbonate using a first reactive distillation column having a specified structure.Type: ApplicationFiled: December 7, 2006Publication date: May 7, 2009Applicant: ASAHI KASEI CHEMICAL CORPORATIONInventors: Shinsuke Fukuoka, Hironori Miyaji, Hiroshi Hachiya, Kazuhiko Matsuzaki
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Patent number: 7518011Abstract: The present invention relates to an interfacial method of preparing ester-substituted diaryl carbonates. The method includes the steps of: forming a reaction mixture comprising phosgene, an ester-substituted phenol, an organic solvent, and a catalyst selected from the group consisting of a tertiary amine catalyst and a phase transfer catalyst, said reaction mixture having an organic phase and an aqueous phase, wherein said aqueous phase has a brine strength; allowing the reaction mixture to react wherein during the reaction, (i) the aqueous phase has a pH, and the pH is adjusted, if necessary, by the addition of an alkali metal hydroxide solution in amounts such that the pH is greater than or equal to 9.Type: GrantFiled: September 20, 2007Date of Patent: April 14, 2009Assignee: Sabic Innovative Plastics IP B.V.Inventors: Paul William Buckley, James Silva, David Dardaris
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Publication number: 20090076293Abstract: Processes comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in the presence of a transesterification catalyst in a first reaction column, the first reaction column comprising a top section, a bottom section, a rectifying section in an upper portion of the column and a reaction zone below the rectifying section; feeding a bottom product from the first reaction column to a further reaction column; the bottom product comprising a diaryl carbonate, an alkylaryl carbonate, or both, and residual unreacted dialkyl carbonate and aromatic hydroxy compound; the further reaction column comprising a top section, a rectifying section in an upper portion of the column and a reaction zone below the rectifying section; and reacting the residual reacted dialkyl carbonate and aromatic hydroxy compound in the further reaction column; feeding a process stream to a distillation column, the process stream comprising a mixture of unreacted dialkyl carbonate and one or more reaction-product alcohols drawn froType: ApplicationFiled: September 15, 2008Publication date: March 19, 2009Applicant: Bayer MaterialScience AGInventors: Andre Dux, Pieter Ooms, Johann Rechner, Matthias Bohm, Kaspar Hallenberger, Georg Ronge, Johan Vanden Eynde
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Patent number: 7446218Abstract: A method for producing a carbonic ester, comprising: (1) performing a reaction between an organometal compound mixture and carbon dioxide, the organometal compound mixture comprising a reactive organometal compound and an unregenerable unreactive compound derived from the reactive organometal compound, to thereby obtain a reaction mixture containing a carbonic ester, the unregenerable unreactive compound, and a regenerable metamorphic organometal compound derived from the reactive organometal compound, (2) separating the reaction mixture into a first portion containing the carbonic ester and the unregenerable unreactive compound, and a second portion containing the regenerable metamorphic organometal compound, and (3) reacting the second portion of the reaction mixture with an alcohol to form an organometal compound mixture and water and removing the water from the organometal compound mixture, the organometal compound mixture comprising a reactive organometal compound and an unregenerable unreactive compoundType: GrantFiled: August 6, 2003Date of Patent: November 4, 2008Assignee: Asahi Kasei Chemicals CorporationInventors: Nobuhisa Miyake, Tomonari Watanabe
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Patent number: 7435842Abstract: A method for producing a carbonic ester, comprising (1) performing a reaction between an organometal compound having a metal-oxygen-carbon linkage and carbon dioxide to obtain a reaction mixture containing a carbonic ester formed by the reaction, (2) separating the carbonic ester from the reaction mixture to obtain a residual liquid, and (3) reacting the residual liquid with an alcohol to form an organometal compound having a metal-oxygen-carbon linkage and form water and removing the water from the organometal compound, wherein the organometal compound obtained in step (3) is recovered for recycle thereof to step (1).Type: GrantFiled: December 27, 2002Date of Patent: October 14, 2008Assignee: Asahi Kasei Chemicals CorporationInventors: Nobuhisa Miyake, Hajime Nagahara
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Patent number: 7417161Abstract: The present invention relates to a continuous method for the preparation of an aromatic carbonate by reacting a dialkyl carbonate and an aromatic hydroxy compound in the presence of a heterogeneous catalyst, and a reaction apparatus for the same. The continuous method comprises the step of reacting dialkyl carbonate and an aromatic hydroxy compound in the presence of the heterogeneous catalyst in a loop-type, catalyst-containing reaction apparatus, wherein a reactor equipped with a filter in which the catalyst is contained is connected with a heat exchanger portion for providing necessary heat during the reaction, reaction solution is circulated between the catalyst-containing portion and heat exchanger via a circulation pump, and by-products can be eliminated via a distillation column connected with the reactor.Type: GrantFiled: February 3, 2003Date of Patent: August 26, 2008Assignee: LG Chem. Ltd.Inventors: Boo-Gon Woo, Ja-Hun Kwak, Moo-Ho Hong, Mi-Jeung Hong
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Publication number: 20080177099Abstract: Production of an aromatic carbonic ester through an ester exchange reaction between a starting material and a reactant while distilling by-product alcohols and/or by-product dialkyl carbonates off the reaction system, wherein use is made of a specified catalyst.Type: ApplicationFiled: December 16, 2005Publication date: July 24, 2008Inventor: Nobuhisa Miyake
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Patent number: 7339070Abstract: A method for recovering a product mixture from a waste stream in a diaryl carbonate manufacturing process comprising reacting the waste stream with an alkyl alcohol to form a reaction mixture, and separating the product mixture from the reaction mixture.Type: GrantFiled: May 15, 2006Date of Patent: March 4, 2008Assignee: General Electric CompanyInventors: Vutukuru Lakshmi Narasimha Murthy, Ignacio Vic Fernandez, Venugopal Boddapaty Venkata
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Publication number: 20080045705Abstract: The present invention relates to a process for preparing compounds of general formula I wherein R1 and R2 are defined as in claim 1, the pharmaceutically acceptable salts and the solvates thereof, which may be prepared starting from compounds of general formula II wherein R1 is defined as in claim 1.Type: ApplicationFiled: August 17, 2007Publication date: February 21, 2008Inventors: Guenther Huchler, Werner Rall, Uwe Ries
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Patent number: 7312352Abstract: The present invention relates to an interfacial method of preparing ester-substituted diaryl carbonates. The method includes the steps of: forming a reaction mixture comprising phosgene, an ester-substituted phenol, an organic solvent, and a catalyst selected from the group consisting of a tertiary amine catalyst and a phase transfer catalyst, said reaction mixture having an organic phase and an aqueous phase, wherein said aqueous phase has a brine strength; allowing the reaction mixture to react wherein during the reaction, (i) the aqueous phase has a pH, and the pH is adjusted, if necessary, by the addition of an alkali metal hydroxide solution in amounts such that the pH is greater than or equal to 9.Type: GrantFiled: November 8, 2004Date of Patent: December 25, 2007Inventors: Paul William Buckley, James Silva, David Dardaris
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Patent number: 7297754Abstract: A method for preparing an aromatic chloroformate comprising, introducing a mixture of at least one aromatic hydroxyl compound, phosgene, at least one solvent, and at least one organic base into a flow reactor to obtain a unidirectionally flowing reaction mixture. The unidirectionally flowing reaction mixture is maintained at a temperature between about 0° C. and about 60° C. to produce a single product stream comprising an aromatic chloroformate.Type: GrantFiled: June 28, 2005Date of Patent: November 20, 2007Assignee: General Electric CompanyInventors: Gary Charles Davis, James Manio Silva, Joshua James Stone