Benzene Ring Bonded Directly To The -o-c(=o)o- Group Patents (Class 558/270)
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Patent number: 7264749Abstract: The present invention relates to alkyne compounds of the formula I P1—Y1-A1-Y3-(T1-B1-)m-T3-C?C-T4-(B2-T2-)n-Y4-A2-Y2—P2 ??(I) in which P1, P2 are each, independently of one another, hydrogen, C1-C12-alkyl, a polymerizable group or a group suitable for polymerization or a radical which carries a polymerizable group or a group suitable for polymerization, Y1, Y2, Y3, Y4 are each, independently of one another, a linking unit, B1, B2 are each, independently of one another, —C?C— or a linking group as defined for Y1 to Y4, A1, A2 are each, independently of one another, a single chemical bond or a spacer having from one to 30 carbon atoms, T1, T2, T3, T4 are each, independently of one another, a divalent saturated or unsaturated carbocyclic or heterocyclic radical, and m, n are each, independently of one another, 0 or 1, with the proviso that at least one of the linking units Y3 or Y4 is a group —O—CO—O—, —O—CO—N(R)—, —(R)N—CO—O— or —(R)N—CO—N(R)—.Type: GrantFiled: April 25, 2003Date of Patent: September 4, 2007Assignee: BASF AktiengesellschaftInventors: Robert Parker, Norbert Schneider, Gerhard Wagenblast, Ruediger Sens
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Patent number: 7262209Abstract: The invention relates to compounds of the general formula wherein Ar1, Ar2, R4, R5, R6, R7, R8, W, X, a and b have the significances given in the specification, and optionally the enantiomers thereof. The active ingredients have advantageous pesticidal properties. They are especially suitable for controlling parasites on warm-blooded animals.Type: GrantFiled: October 2, 2002Date of Patent: August 28, 2007Assignee: Novartis Animal Health US, Inc.Inventors: Thomas Goebel, Pierre Ducray
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Patent number: 7189869Abstract: A method of making polycarbonates comprises melt-polymerizing an aromatic dihydroxy compound and a carbonic acid diester in a presence of a polymerization catalyst in a reactor system producing a byproduct stream, wherein the polymerization catalyst comprises a quaternary phosphonium compound; and purifying the byproduct stream to separate phenol, wherein the separated phenol has a phosphorus concentration of less than or equal to about 3 part per million, based upon the total weight of the phenol separated.Type: GrantFiled: November 1, 2004Date of Patent: March 13, 2007Assignee: General Electric CompanyInventors: Gerardo Hidalgo, Patrick J. McCloskey, Alberto Nisoli, Lina Prada
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Patent number: 7151189Abstract: 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: June 19, 2003Date of Patent: December 19, 2006Assignee: General Electric CompanyInventors: Vutukuru Lakshmi Narasimha Murthy, Ignacio Fernandez Vic, Boddapaty Venkata Venugopal
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Patent number: 7125814Abstract: Materials for dielectrics and/or buffer layers in microelectronics utilize polymers can be based on bis-o-nitrophenols. The bis-o-nitrophenols carry a tert-butoxycarbonyl group on at least one of the hydroxyl groups. The polybenzoxazoles prepared from these compounds have a lower dielectric constant than corresponding polymers which are prepared from bis-o-nitrophenols that do not have a tert-butoxycarbonyl group.Type: GrantFiled: September 16, 2002Date of Patent: October 24, 2006Assignee: Infineon Technologies AGInventor: Recai Sezi
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Patent number: 6881856Abstract: A thermoplastic polyurethane useful for elastomers, elastic fibers and artificial leathers contains a polyaddition product of a diisocyanate and a chain extender with a liquid polyethercarbonate diol which is a reaction product of a carbonate compound with a polyether diol having structural units (a) (—(CH2)6—O—) and at least one member of structural units (b) (—(CH2)2—O) and (c) (—CH2CH(CH3)—O—), and in which the units (b) are present in an average number (n) of moles of 0 to 5 per mole of the units (a), the units (c) are present in an average number (m) of moles of 0 to 5 per mole of the units (a), and the total average number (n+m) of moles of the units (b) and (c) is more than 1 but not more than 5, per mole of the units (a).Type: GrantFiled: December 26, 2001Date of Patent: April 19, 2005Assignee: Ube Industries, Ltd.Inventors: Hideho Tanaka, Masaru Kunimura, Kohichi Kashiwagi, Takayoshi Kaneko
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Publication number: 20040192953Abstract: A process for the production of an aromatic carbonate is disclosed.Type: ApplicationFiled: March 2, 2004Publication date: September 30, 2004Inventors: Claus-Peter Reisinger, Peter Fischer, Sven-Michael Hansen, Marc Dahlmann
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Patent number: 6703473Abstract: An improvement to the melt transesterification reaction of diaryl carbonate with dihydroxy aryl compound is disclosed.Type: GrantFiled: January 2, 2002Date of Patent: March 9, 2004Assignee: Bayer AktiengesellschaftInventors: Uwe Hucks, Kaspar Hallenberger, Silke Kratschmer, Michael Prein, Steffen Kühling
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Patent number: 6667341Abstract: Amidomethyl esters, carbonylmercaptomethyl esters, keto-containing esters, amidomethyl thioesters, amidomethyl amides, and methylene dithioesters are disclosed. The novel compounds have two carbonyl groups connected by a linking moiety having an oxygen, sulfur or nitrogen attached to a methylene group, to which is further attached a sulfur, nitrogen or CH2 group. Methods of treating illnesses and conditions, such as cancer, hemological disorders, inherited metabolic disorders and others, using these compounds are also disclosed.Type: GrantFiled: May 17, 2001Date of Patent: December 23, 2003Assignee: Beacon Laboratories, Inc.Inventors: Hsuan-Yin Lan-Hargest, Norbert L. Wiech
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Publication number: 20030162989Abstract: A method of isolating and recovering an aromatic carbonate, in which a solvent having a solubility parameter of 7 to 10 is added to a solution of the aromatic carbonate in an aromatic hydroxy compound to precipitate the aromatic carbonate in the form of a crystal and the aromatic carbonate is isolated and recovered.Type: ApplicationFiled: October 7, 2002Publication date: August 28, 2003Inventors: Kenji E Ohashi, Hirotaka Suzuki, Takeshi Muraoka, Eishin Yoshisato, Ryouichi Nagashima
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Patent number: 6600061Abstract: The present invention provides a method for making aromatic carbonates. In this method, an aryl alcohol is reacted with a dialkyl carbonate in a reactor (e.g., a distillation column) to produce an arylalkyl carbonate and diaryl carbonate. The total yield of arylalkyl carbonate and diaryl carbonate together is at least 40%. Also, the selectivity of diaryl carbonate versus diaryl carbonate and arylalkyl carbonate together is preferably at least 25%.Type: GrantFiled: November 15, 2000Date of Patent: July 29, 2003Assignee: General Electric CompanyInventors: Stephan Mathys Bouwens, Marcel Vieveen
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Patent number: 6596894Abstract: The present invention provides a method for making aromatic carbonates. In this method, an aryl alcohol is reacted with a dialkyl carbonate in a reactor (e.g., a distillation column) to produce an arylalkyl carbonate and diaryl carbonate. In one embodiment, the method comprises: feeding to the top subsection of the reactive section of a distillation column, a first stream comprising an aryl alcohol and a catalyst, and feeding to the bottom subsection of the reactive section a second stream containing a dialkylcarbonate, wherein the temperature at the bottom of the column is between 220° C. and 240° C.Type: GrantFiled: February 21, 2002Date of Patent: July 22, 2003Assignee: General Electric CompanyInventors: Stephan Mathys Bouwens, Marcel Vieveen
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Patent number: 6596895Abstract: The present invention provides a method for making polycarbonates. One embodiment of the method comprises reacting diphenylcarbonate with a dihydric phenol. The diphenylcarbonate is made by reacting a reaction mixture comprising aryl alcohol together with a dialkyl carbonate in a reactor to produce aryl alkylcarbonate and diaryl carbonate.Type: GrantFiled: February 21, 2002Date of Patent: July 22, 2003Assignee: General Electric CompanyInventors: Stephan Mathys Bouwens, Marcel Vieveen
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Publication number: 20030105346Abstract: Aromatic carbonates can be prepared economically and efficiently by reacting an aromatic hydroxy compound with carbon monoxide and oxygen in the presence of a catalyst wherein a palladium compound is supported on a perovskite-type composite oxide represented by the following formula (1) or (1′):Type: ApplicationFiled: December 10, 2002Publication date: June 5, 2003Applicant: TEIJIN LIMITEDInventor: Eishin Yoshisato
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Patent number: 6548445Abstract: In the process for preparing an aromatic carbonate from an aromatic hydroxy compound, CO and O2 in the presence of a quaternary salt and a base using a platinum metal catalyst and a cocatalyst, use is advantageously made of supported catalysts containing, in the reaction-ready state, (i) a platinum metal, a platinum metal halide or a platinum metal halide complex and (ii) a metal compound acting as cocatalyst from groups IB, IIB, IIIA, IIIB, IVA, IVB, VB, VIB, VIIB, the iron group (atomic numbers 26-28) or the rare earth metals (atomic numbers 58-71) of the Periodic Table of the Elements (Mendeleev), each in an amount of 0.01-15% by weight, calculated as metal and based on the total weight of the catalyst.Type: GrantFiled: March 29, 1996Date of Patent: April 15, 2003Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Carsten Hesse, Jörg-Dietrich Jentsch, Johann Rechner, Eberhard Zirngiebl
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Publication number: 20020183539Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds is disclosed. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes an effective amount of at least one Group 8, 9, or 10 metal source; an effective amount of at least one bromide composition; an effective amount of at least one activating organic solvent; an effective amount of a combination of inorganic co-catalysts comprising at least one titanium source and at least one copper source; and an effective amount of at least one base.Type: ApplicationFiled: May 20, 2002Publication date: December 5, 2002Inventors: Kirill Vladimirovich Shalyaev, Grigorii Lev Soloveichik, Bruce Fletcher Johnson
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Publication number: 20020183538Abstract: A method is disclosed for recovering a substantially water-soluble solvent from a reaction mixture comprising at least about 35% by weight aromatic hydroxy compound, which comprises the steps of: (i) extracting a reaction mixture at least once with aqueous acid wherein the solvent remains substantially in the organic phase; and (ii) recovering solvent from the organic phase.Type: ApplicationFiled: March 30, 2001Publication date: December 5, 2002Applicant: General Electric CompanyInventors: Marsha Mottel Grade, John Yaw Ofori, Eric James Pressman
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Publication number: 20020177724Abstract: A method for economically producing aromatic carbonates from aromatic hydroxy compounds is disclosed which in one embodiment comprises the steps of: (i) contacting at a temperature sufficient to keep the mixture molten at least one aromatic hydroxy compound with a catalyst composition comprising the following and any reaction products thereof: (A) at least one Group 8, 9, or 10 metal or a compound thereof; (B) at least one salt; (C) at least one metal co-catalyst; and (D) optionally, at least one activating solvent; (ii) optionally heating the mixture at atmospheric pressure to a temperature above that sufficient to keep the mixture molten; (iii) pressurizing the mixture with carbon monoxide; (iv) optionally heating the mixture under pressure of carbon monoxide to a temperature above that sufficient to keep the mixture molten; (v) optionally maintaining the mixture under pressure of carbon monoxide for a time period; (vi) introducing oxygen to the mixture to a desired concentration of oxygen in carbon monoxidType: ApplicationFiled: March 30, 2001Publication date: November 28, 2002Applicant: General Electric CompanyInventors: Eric James Pressman, John Yaw Ofori
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Publication number: 20020151740Abstract: A method for making a vinyl carbonate represented by the formula (I):Type: ApplicationFiled: May 29, 2002Publication date: October 17, 2002Inventors: David Lewis Allen, Heather Fort Henry, Becky Lynn Cahill, John Ponton, Kathryn Marie Church
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Patent number: 6465457Abstract: Fungicidal compounds of formula (I): wherein W is CH3O.Type: GrantFiled: August 18, 1994Date of Patent: October 15, 2002Assignee: Zeneca LimitedInventors: Ian Richard Matthews, Christopher Richard Ayles Godfrey, John Martin Clough
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Publication number: 20020099235Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds is disclosed. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes an effective amount of at least one Group 8, 9, or 10 metal source; an effective amount of at least one bromide composition; an effective amount of at least one activating organic solvent; an effective amount of a combination of inorganic co-catalysts comprising at least one titanium source and at least one copper source; and an effective amount of at least one base.Type: ApplicationFiled: November 30, 2000Publication date: July 25, 2002Applicant: General Electric CompanyInventors: Kirill Vladimirovich Shalyaev, Grigorii Lev Soloveichik, Bruce Fletcher Johnson
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Patent number: 6423862Abstract: A method for making a vinyl carbonate represented by the formula (I): CH2═CHOC(O)X1R1 (I) wherein X1 is oxygen or sulfur and R1 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl, olefinic, vinyl, or cycloaliphatic group comprises: (a) reacting a compound represented by the formula (II): X2C(O)X1R1 (II) wherein X2 is a halogen other than fluorine, with a compound represented by the formula (III): M1-F (III) wherein M1 is selected from a Group IA metal, in the presence of a first phase transfer catalyst and a first organic solvent, to form a compound represented by the formula (IV): FC(O)X1R1; (IV) and (b) reacting a compound represented by the formula (IV) with a compound represented by the formula (V): CH2═CHOSi(R2)3 (V) wherein R2 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl, olefinic, vinyl, or cycloaliphatic group, or any combination thereof, in the presence ofType: GrantFiled: October 25, 2001Date of Patent: July 23, 2002Assignee: Wright Chemical CorporationInventors: David Lewis Allen, Heather Fort Henry, Becky Lynn Cahill, John Ponton, Jr., Kathryn Marie Church
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Patent number: 6423863Abstract: The present invention is directed to a method for sustaining the catalytic activity of a carbonylation catalyst composition, after changes in reactor pressure and temperature, in the catalytic production of aromatic carbonates.Type: GrantFiled: June 28, 2001Date of Patent: July 23, 2002Assignee: General Electric CompanyInventor: Eric James Pressman
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Publication number: 20020077496Abstract: A process for catalytic production of diaryl carbonates by oxidative carbonylation of aromatic hydroxy compounds with carbon monoxide and oxygen achieves water removal during reaction by a process comprising the steps of: removing a liquid stream from an oxidative carbonylation reaction mixture in a reaction vessel and transferring the stream to a disengagement vessel, transferring a stream from the disengagement vessel to a flash vessel and subjecting the liquid stream to reduced pressure, and returning at least a portion of dried liquid stream to the reaction vessel. Typical catalyst systems for oxidative carbonylation contain (A) at least one Group 8, 9, or 10 metal having an atomic number of at least 44 or a compound thereof; (B) at least one guanidinium salt or onium salt; (C) at least one metal co-catalyst; and (D) at least one base.Type: ApplicationFiled: September 24, 2001Publication date: June 20, 2002Applicant: General Electric CompanyInventors: John Yaw Ofori, Eric James Pressman, Kirill Vladimirovich Shalyaev, Eric Douglas Williams, Richard Anthony Battista
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Publication number: 20020077497Abstract: A process for catalytic production of diaryl carbonates by oxidative carbonylation of aromatic hydroxy compounds with carbon monoxide and oxygen achieves water removal during reaction by a process comprising the steps of: removing a liquid stream from an oxidative carbonylation reaction mixture in a reaction vessel, subjecting the liquid stream to reduced pressure, and returning at least a portion of dried liquid stream to the reaction vessel. Typical catalyst systems for oxidative carbonylation contain (A) at least one Group 8, 9, or 10 metal having an atomic number of at least 44 or a compound thereof; (B) at least one alkali metal salt; (C) at least one metal co-catalyst; (D) at least one activating organic solvent; and (E) optionally, at least one base.Type: ApplicationFiled: September 24, 2001Publication date: June 20, 2002Applicant: General Electric CompanyInventors: John Yaw Ofori, Eric James Pressman, Kirill Vladimirovich Shalyaev, Eric Douglas Williams, Richard Anthony Battista
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Publication number: 20020077495Abstract: A process for catalytic production of diaryl carbonates by oxidative carbonylation of aromatic hydroxy compounds with carbon monoxide and oxygen achieves water removal during reaction by a process comprising the steps of: removing a liquid stream from a reaction vessel by transferring the stream to a disengagement vessel, transferring a stream from a disengagement vessel to a flash vessel and subjecting the liquid stream to reduced pressure, and returning at least a portion of dried liquid stream to a reaction vessel. Typical catalyst systems for oxidative carbonylation contain (A) at least one Group 8, 9, or 10 metal having an atomic number of at least 44 or a compound thereof; (B) at least one guanidinium salt or onium salt; (C) a metal co-catalyst comprising at least one copper source and at least one titanium source; and (D) at least one base.Type: ApplicationFiled: December 14, 2000Publication date: June 20, 2002Inventors: John Yaw Ofori, Eric James Pressman, Kirill Vladimirovich Shalyaev, Eric Douglas Williams, Richard Anthony Battista
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Publication number: 20020077446Abstract: An improvement to the interfacial boundary process for producing carbonic acid diaryl esters is disclosed. In the two-stage process that entails phosgene and monophenols reaction in an inert solvent, in the presence of alkali and in the presence of a nitrogen base catalyst, the improvement comprising maintaining a temperature below 50° C. in the first and second stages.Type: ApplicationFiled: December 12, 2001Publication date: June 20, 2002Inventors: Wolfgang Alewelt, Steffen Kuhling
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Patent number: 6388146Abstract: The polymerizable compound of this invention is represented by general formula (I): where R is H, R′, R′O, R′COO, or R′OCO, R′ is a linear or branched alkyl group or alkenyl group having 1 to about 15 carbon atoms, A1 and A2 are independently a cyclohexane ring or a benzene ring which may include a substituent represented by formula (II) below; X is H or CH3; and Y1, Y2, Y3, and Y4 are independently H, F, Cl, CH3, CH3O, CF3, or CF3O wherein at least two of Y1, Y2, Y3, and Y4 are H and, if both A1 and A2 are cyclohexane rings, at least one of Y1, Y2, Y3, and Y4 is not H: where Y5, Y6, Y7, and Y8 are independently H, F, Cl, CH3, CH3O, CF3, or CF3O, at least two of Y5, Y6, Y7, and Y8 are H.Type: GrantFiled: January 27, 1999Date of Patent: May 14, 2002Assignees: Sharp Kabushiki Kaisha, Kanto Kagaku Kabushiki KaishaInventors: Noriaki Onishi, Aya Miyazaki, Hoyo Mizobe, Masahiko Yoshida, Kenji Suzuki
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Patent number: 6372683Abstract: A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system having catalytic amounts of the following components: a Group VIII B metal source; a combination of inorganic co-catalysts including a copper source and at least one of a titanium source or a zirconium source; an onium chloride composition; and a base. Alternative embodiments include inorganic co-catalyst combinations of a lead source and at least one of a titanium source or a manganese source.Type: GrantFiled: January 10, 2001Date of Patent: April 16, 2002Assignee: General Electric CompanyInventors: Kirill Vladimirovich Shalyaev, Grigorii Lev Soloveichik, Bruce Fletcher Johnson, Donald Wayne Whisenhunt, Jr.
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Patent number: 6355824Abstract: A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system having an effective amount of an iron source in the absence of a Group VIII B metal source. In various alternative embodiments, the carbonylation catalyst system can include at least one inorganic co-catalyst, as well as a halide composition and/or a base.Type: GrantFiled: December 4, 2000Date of Patent: March 12, 2002Assignee: General Electric CompanyInventors: Ben Purushotam Patel, Grigorii Lev Soloveichik, Donald Wayne Whisenhunt, Jr., Kirill Vladimirovich Shalyaev
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Publication number: 20010041806Abstract: A process for producing diaryl carbonate of the present invention comprises steps of:Type: ApplicationFiled: December 26, 2000Publication date: November 15, 2001Inventors: Masaaki Miyamoto, Narutoshi Hyoudou
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Patent number: 6310232Abstract: Bromide source such as alkali metal bromide, alkaline earth metal bromide, or onium bromide, present as part of a catalyst mixture in an organic oxidative carbonylation mixture further comprising diaryl carbonate and a hydroxyaromatic compound, is often at least partially converted to organic bromide such as bromophenols. The bromide source can be recycled after reaction through treatment with an aqueous acidic bromide solution such as hydrogen bromide, preferably after removal of a major proportion of hydroxyaromatic compound such as phenol.Type: GrantFiled: November 10, 2000Date of Patent: October 30, 2001Assignee: General Electric CompanyInventors: John Yaw Ofori, Eric James Pressman, Ben Purushotam Patel, Phillip Oscar Moreno, Richard Anthony Battista
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Patent number: 6310229Abstract: Lead halophenoxides, especially bromophenoxides, are prepared by the reaction of lead(II) oxides with a hydroxyaromatic compound such as phenol and a chloride or bromide salt such as an alkali metal bromide, a tetraalkylammonium bromide or a bexaalkylguanidinium bromide. They are useful in catalyst compositions for the oxidative carbonylation of hydroxyaromatic compounds to diaryl carbonates.Type: GrantFiled: December 20, 1999Date of Patent: October 30, 2001Assignee: General Electric CompanyInventors: Grigorii Lev Soloveichik, Ben Purushatom Patel, John Yaw Ofori
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Patent number: 6284911Abstract: A method for making a vinyl carbonate represented by the formula (I): CH2═CHOC(O)X1R1 (I) wherein X1 is oxygen or sulfur and R1 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl, olefinic, vinyl, or cycloaliphatic group comprises: (a) reacting a compound represented by the formula (II): X2C(O)X1R1 (II) wherein X2 is a halogen other than fluorine, with a compound represented by the formula (III): M1—F (III) wherein M1 is selected from a Group IA metal, in the presence of a first phase transfer catalyst and a first organic solvent, to form a compound represented by the formula (IV): FC(O)X1R1 (IV); and (b) reacting a compound represented by the formula (IV) with a compound represented by the formula (V): CH2═CHOSi(R2)3 (V) wherein R2 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl olefinic, vinyl, or cycloaliphatic group, or any combination thereof, in the presence of a metal saltType: GrantFiled: June 28, 2000Date of Patent: September 4, 2001Assignee: Wright Chemical CorporationInventors: David Lewis Allen, Heather Fort Henry, Becky Lynn Cahill, John Ponton, Jr., Kathryn Marie Church
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Patent number: 6172254Abstract: Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an alkali metal or alkaline earth metal halide, preferably sodium bromide; and a promoter compound which is at least one C2-8 aliphatic or C7-10 aromatic mono- or dinitrile, preferably acetonitrile or adiponitrile. The catalyst system also preferably contains a compound of a non-Group VIIIB metal, preferably lead.Type: GrantFiled: June 30, 1999Date of Patent: January 9, 2001Assignee: General Electric CompanyInventors: Eric James Pressman, Grigorii Lev Soloveichik, Bruce Fletcher Johnson, Kirill Vladimirovich Shalyaev
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Patent number: 6169197Abstract: A process for separation between dialkyl carbonate and alkyl carbamate which comprises adding an aromatic hydroxy compound to a liquid comprising alkyl carbamate having an alkyl group having 3 to 6 carbon atoms and dialkyl carbonate having alkyl group having 3 to 6 carbon atoms to obtain a mixed liquid, and distilling the mixed liquid thus obtained in a distillation column to obtain a mixture comprising the dialkyl carbonate and the aromatic hydroxy compound from a top section of the distillation column and a liquid comprising the alkyl carbamate from a bottom section of the distillation column.Type: GrantFiled: June 15, 1999Date of Patent: January 2, 2001Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Takuo Ohshida, Hiroaki Ohgi, Yoshihisa Arai, Masamichi Mizukami
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Patent number: 6153696Abstract: A process for the stoichiometric carbonation of a hydroxyaromatic material is provided which comprises the steps of (a) mixing together in a reaction vessel (1) a hydroxyaromatic material, (2) a sufficient amount of a dialkyl dicarbonate to give the desired degree of substitution, (3) a catalytic amount of an unhindered tertiary amine, and (4) a solvent, (b) stirring the reaction mixture, (c) precipitating the alkyl carbonate of the hydroxyaromatic material, and (d) recovering the alkyl carbonate of the hydroxyaromatic material.Type: GrantFiled: May 10, 1993Date of Patent: November 28, 2000Assignee: International Business Machines CorporationInventors: Gregory Breyta, Daniel Joseph Dawson, Moahmoud Mostafa Khojasteh, Ranee Wai-Ling Kwong, Elwood Herbert Macy, David Paul Merritt, Wayne Martin Moreau, Stanley Eugene Perreault, Harbans Singh Sachdev, Robert Lavin Wood, Hiroshi Ito
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Patent number: 6147240Abstract: The present invention relates to compounds of the general formula I ##STR1## wherein A is a group of the formula ##STR2## and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.Type: GrantFiled: April 5, 1999Date of Patent: November 14, 2000Assignee: Ugichem GmbHInventors: Ivar Ugi, Holger Bock, Thomas Lindhorst
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Patent number: 6057470Abstract: Reactive distillation equipment applicable to a relatively complicated reaction composed of at least two steps of equilibrium reactions, and a reactive distillation method capable of performing the reaction efficiently. Raw material feeding pipes 5, 6 and 7 are connected to a reactive distillation column 1. The raw material feeding pipes 5, 6 and 7 are disposed on different stages of the reactive distillation column 1 in this order from the top of the column downward. It is preferred that the reactive distillation column 1 includes a stage to which no raw material feeding pipe is connected between a first stage connected to the raw material feeding pipe 5 and a second stage connected to the raw material feeding pipe 6, and between the second stage and a third stage connected to the raw material feeding pipe 7.Type: GrantFiled: January 21, 1998Date of Patent: May 2, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Hideaki Tsuneki, Atusi Moriya, Hiroshi Yoshida, Hiroki Wakayama, Kenichi Watanabe, Yoshiyuki Onda
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Patent number: 6001768Abstract: In the process for preparing an aromatic carbonate from an aromatic hydroxy compound, CO and O.sub.2 in the presence of a quaternary salt and a base, use is advantageously made of supported catalysts which, in the reaction-ready state, contain a platinum metal, a platinum metal compound or a complex containing a platinum metal compound on a support comprising a metal oxide whose metal can occur in a plurality of oxidation states.Type: GrantFiled: March 29, 1996Date of Patent: December 14, 1999Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Carsten Hesse, Jorg-Dietrich Jentsch, Johann Rechner, Eberhard Zirngiebl
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Patent number: 5965472Abstract: Catalyst systems with a content of a platinum-group-metal catalyst, a co-catalyst, a quaternary salt and a base for the oxidative carbonylation of aromatic hydroxy compounds to the corresponding diaryl carbonates are according to the invention obtained as a mother liquor by suspension crystallization and can be returned into the carbonylation reaction or worked up to valuable materials. The crystallizate, which consists predominantly of diaryl carbonate and the parent aromatic hydroxy compound, is worked up to pure diaryl carbonate and pure hydroxy compound.Type: GrantFiled: April 1, 1997Date of Patent: October 12, 1999Assignee: Bayer AGInventors: Hans-Josef Buysch, Carsten Hesse, Johann Rechner, Hans-Peter Wirges
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Patent number: 5962720Abstract: The present invention relates to an improved method of synthesizing unsymmetric linear organic carbonates comprising the reaction of two symmetric dialkyl carbonates, R.sup.1 and R.sup.2, in the presence of a nucleophilic reagent or an election donating reductant as a catalyst, wherein R.sup.1 and R.sup.2 can be either saturated or unsaturated alkyl or aryl groups, is described. The present invention further provides a preparation method for a nonaqueous organic electrolyte having an unsymmetric linear organic carbonate as a co-solvent.Type: GrantFiled: May 29, 1997Date of Patent: October 5, 1999Assignee: Wilson Greatbatch Ltd.Inventors: Hong Gan, Marcus Palazzo, Esther S. Takeuchi
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Patent number: 5962699Abstract: A process for decolorizing organic carbonates, for example, cyclic alkylene carbonates, which involves contacting a discolored organic carbonate with hydrogen peroxide, is disclosed.Type: GrantFiled: July 23, 1998Date of Patent: October 5, 1999Assignee: Huntsman Petrochemical CorporationInventors: Edward T. Marquis, Robert E. Baldwin
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Patent number: 5907051Abstract: A method of producing a carbonic diester involves allowing an alcohol to react with carbon monoxide and oxygen in the presence of a supported catalyst wherein the support is an activated carbon obtained from a vegetable or polymeric raw material, a support having an aluminum content of up to 2% by weight, or a support having sulfur content of up to 1% by weight.Type: GrantFiled: December 23, 1993Date of Patent: May 25, 1999Assignee: Daicel Chemical Industries, Ltd.Inventors: Hirokazu Matsuda, Shingo Oda, Mitsuru Ohno
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Patent number: 5892091Abstract: A catalyst composed of an organic phosphorus compound having a trivalent or pentavalent phosphorus atom and at least one carbon-phosphorus bonding or a combination of the organic phosphorus compound and a halogen atom-containing compound is effective for decarbonylation, that is, for releasing carbon monoxide from a compound containing a moiety of --CO--CO--O-- in its molecular structure.Type: GrantFiled: July 8, 1997Date of Patent: April 6, 1999Assignee: Ube Industries, Ltd.Inventors: Katsumasa Harada, Yoichi Imbe, Keigo Nishihira, Shuji Tanaka, Satoru Fujitsu, Ryoji Sugise, Koichi Kashiwagi, Toshihiko Sumida, Takashi Doi, Masayuki Nishio
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Patent number: 5872275Abstract: Disclosed is a process for producing an aromatic carbonate which comprises transesterifying, in the presence of a metal-containing catalyst, a starting material selected from the group consisting of a dialkyl carbonate, an alkyl aryl carbonate and a mixture thereof with a reactant selected from the group consisting of an aromatic monohydroxy compound, an alkyl aryl carbonate and a mixture thereof, wherein the transesterification is conducted while maintaining a weight ratio (WR) of at least one aromatic group-containing substance selected from the group consisting of a specific aromatic polyhydroxy compound and a residue thereof to the metal of the metal-containing catalyst at 2.0 or less, wherein the weight ratio (WR) is measured with respect to a catalyst-containing liquid-phase mixture in a system for the transesterification, and wherein the aromatic group-containing substance originates from the starting material, the reactant and/or a by-product of the transesterification.Type: GrantFiled: September 24, 1997Date of Patent: February 16, 1999Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kyosuke Komiya, Masahiro Tojo, Shinsuke Fukuoka
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Patent number: 5859084Abstract: A process for the preparation of a radiation-curable acrylate composition, wherein to compounds A containing at least 2 acrylic groups there are added benzophenone derivatives which are not copolymerizable by free-radical copolymerization and which contain at least one primary or secondary amino group or a hydroxyl group or a mercapto group.Type: GrantFiled: July 15, 1996Date of Patent: January 12, 1999Assignee: BASF AktiengesellschaftInventors: Jochen Schroder, Wolfgang Reich, Erich Beck, Martin Fischer, Wolfram Weiss
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Patent number: 5831113Abstract: A process for producing a carbonic acid diester, which comprises carrying out a reaction in a vapor phase of an alcohol, carbon monoxide and oxygen in the presence of a catalyst in a fluidized-bed reactor so that an oxidative carbonylation of the alcohol occurs, thereby obtaining a carbonic acid diester, wherein a heat of reaction is removed by the latent heat of vaporization of the alcohol as a raw material. In the process, for example, either at least part of the alcohol may be directly fed in liquid phase into the fluidized bed or cooling pipes are disposed in the fluidized bed and at least part of the alcohol is introduced in liquid phase into the cooling pipes as a heat transfer medium so that the liquid alcohol is vaporized and fed into the fluidized-bed reactor. Carbon monoxide may be introduced together with the liquid alcohol into the cooling pipes.Type: GrantFiled: July 17, 1997Date of Patent: November 3, 1998Assignee: JGC CorporationInventors: Hiroshi Umino, Kozo Imura, Takeshi Koyama
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Patent number: 5792762Abstract: The invention provides dihydronaphthofluorene compounds, formulations, and methods of inhibiting bone loss or bone resorption, particularly osteoporosis, and cardiovascular-related pathological conditions.Type: GrantFiled: September 19, 1997Date of Patent: August 11, 1998Assignee: Eli Lilly and CompanyInventors: Henry Uhlman Bryant, Thomas Alan Crowell, Charles David Jones
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Patent number: 5780663Abstract: A process for producing a carbonic acid diester, a method of removing CO.sub.2 and an absorbent for CO.sub.2 and an apparatus therefor are provided and are capable of selective removing of CO.sub.2 by absorption from a CO-containing gas admixed with CO.sub.2 which is recovered from a reactor to thereby enable recycling CO to the reactor for use. The invention is characterized by (1) carrying out a reaction of an alcohol, carbon monoxide (CO) and oxygen in a reactor and withdrawing a gas (i) which contains CO and CO.sub.2 produced as a by-product of the reaction from the reactor; (2) contacting the withdrawn gas (i) with an alcohol solution so that at least part of the CO.sub.2 contained in the gas (i) is absorbed by the alcohol solution and removed from the gas (i), thereby obtaining a CO-containing gas (ii), and (3) recycling the CO-containing gas (ii) to the reactor. It is preferred that the gas (i) is subjected to vapor-liquid separation and a separated gas is contacted with the alcohol solution.Type: GrantFiled: April 16, 1997Date of Patent: July 14, 1998Assignee: JGC CorporationInventors: Kenji Mori, Takeshi Koyama