Patents Examined by Karl Puttlitz
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Patent number: 7129375Abstract: Neutral alpha amino diacid complexes of trace minerals and their use for animal nutrition.Type: GrantFiled: October 16, 2002Date of Patent: October 31, 2006Assignee: Zinpro CorporationInventors: Mahmoud M. Abdel-Monem, Michael D. Anderson
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Patent number: 7122696Abstract: Herein are disclosed a process for increasing in purity, or purifying, an N-protected-?-aminoalcohol which process comprises (i) adding water to a polar organic solvent in which an N-protected-?-aminoalcohol such as a (2R,3S)- or (2S,3R)-3-tert-butoxycarbonylamino-1-halo-2-hydroxy-4-phenylbutane or the like, or (ii) crystallizing such an N-protected-?-aminoalcohol from a diol or a diol-based mixed solvent, and a process for producing the corresponding N-protected-?-aminoepoxide which process comprises treating, with a base, the thus purity-enhanced N-protected-?-aminoalcohol. Such N-protected-?-aminoalcohols and N-protected-?-aminoepoxides are both useful as synthetic intermediates for medicine compounds, such as, e.g., HIV protease inhibitor and the like.Type: GrantFiled: November 30, 2001Date of Patent: October 17, 2006Assignee: Ajinomoto Co., Inc.Inventors: Naoko Hirose, Tomoyuki Onishi, Daigaku Hideura, Yasuyuki Otake, Kunisuke Izawa
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Patent number: 7122697Abstract: A method for producing carbamates that enables carbamates to be produced at low costs, with high selectivity and high yield, and in a simple manner, and a method for producing isocyanates that enables isocyanates industrially used to be produced by using the carbamates obtained by the carbamates producing method. Nonaromatic amine selected from the group consisting of aliphatic amine, alicyclic amine, and aralkyl amine is allowed to react with alkylaryl carbonate to thereby produce carbamates. Also, the carbamates thus obtained are thermally decomposed to thereby produce isocyanates. When carbamates are produced in this method, alkyl carbamates can be obtained with high selectivity and at high yield by using simple equipment. Also, when isocyanates are produced in this method, polyisocyanates used industrially as the raw material of polyurethane can be produced in a simple manner and with efficiency.Type: GrantFiled: December 24, 2002Date of Patent: October 17, 2006Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Tsutomu Yoshida, Masaaki Sasaki, Satoshi Kuroiwa, Fumiaki Hirata
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Patent number: 7115773Abstract: The invention relates to a method for the coupled production of two esters by reacting a mixture of aliphatic alcohols with an aliphatic carboxylic acid and then treating the resulting mixture by distillation. During the distillation process, a side flow that is taken from the distillation column that is connected downstream of the esterification reactor is fed back into said esterification reactor. The pure ester compounds are obtained from the bottom of the distillation columns that are connected downstream of the esterification reactor.Type: GrantFiled: September 7, 2001Date of Patent: October 3, 2006Assignee: Celanese Chemicals Europe GmbHInventors: Eckhard Schulz, Helmut Bauer, Klaus Dieter Merscher
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Patent number: 7115774Abstract: In a process for liquid phase carbonylation of alcohols by carbon monoxide, the carbonylation reaction is carried out in a reaction zone at a temperature of 50° C. to 150° C. at a pressure in the range 0.5 MPa to 20 MPa in the presence of at least one catalyst comprising at least one rhodium and/or iridium complex and a halogenated promoter in at least one non-aqueous ionic liquid comprising at least one salt with general formula Q+A?, in which Q+ represents a quaternary ammonium and/or a quaternary phosphonium cation, said salt having a melting point of less than 90° C.; the non-aqueous ionic liquid containing at least the major portion of the catalyst is separated; and the separated non-aqueous ionic liquid containing at least the major portion of the catalyst is returned to the reaction zone.Type: GrantFiled: May 22, 2003Date of Patent: October 3, 2006Assignee: Institut Francais du PetroleInventors: Lionel Magna, Helene Olivier-Bourbigou, Stephane Harry, Dominique Commereuc
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Patent number: 7115775Abstract: ?,?-ethylenically unsaturated aldehydes and/or carboxylic acids are prepared by means of a two-stage catalytic gas-phase oxidation in which a gas mixture comprising at least an alkane or alkene having from three to six carbon atoms and oxygen is subjected to a catalytic oxidation reaction, in the first stage (1). oxygen is added to the gases produced in the first stage (1) and the resulting mixture is introduced into the second stage (2) in which it is subjected to a further catalytic oxidation reaction. In the process of the present invention, a signal which correlates with the oxygen content of the reaction gases before and/or after the addition of oxygen between the first and second stages (1, 2) is generated and the oxygen addition is regulated as a function of the signal.Type: GrantFiled: April 8, 2002Date of Patent: October 3, 2006Assignee: BASF AktiengesellschaftInventors: Thomas Buschulte, Volker Diehl, Bernd Hagen, Volker Huth, Wolfgang Kasten, Peter Schlemmer, Axel Schroth
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Patent number: 7112695Abstract: In a process for the purification of a crude acrylic acid melt, the crude acrylic acid melt is converted, under the action of low temperatures, into a crude acrylic acid suspension consisting of acrylic acid crystals and residual melt, and the acrylic acid crystals of the crude acrylic acid suspension are freed from remaining residual melt in a wash column, the production of the acrylic acid crystals of the crude acrylic acid suspension being carried out in the presence of water, the wash column being a wash column with forced transport of the acrylic acid crystals and the wash liquid used being the melt of acrylic acid crystals purified in the wash column.Type: GrantFiled: April 4, 2001Date of Patent: September 26, 2006Assignee: BASF AktiengesellschaftInventors: Bernd Eck, Dieter Baumann, Jörg Heilek, Klaus Joachim Müller-Engel
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Patent number: 7108789Abstract: A process for reaction and separation which comprises inputting a process material into at least one column of a plurality of columns wherein each column has at least one inlet for accepting flow from another column or group of columns, an external feed stream, an external eluent stream or a combination thereof, and each column has at least one outlet for connecting to another column, a group of columns, an external product stream or a combination thereof. Each column is independently operable in an up-flow or down-flow mode and connected independently to one of the group comprising another column, an external feed stream, an external eluent stream, an external product stream and combinations thereof.Type: GrantFiled: April 11, 2003Date of Patent: September 19, 2006Assignee: Calgon Carbon CorporationInventors: Chen-Chou Chiang, David L. Fair
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Patent number: 7109372Abstract: A method is disclosed which produces acrylic acid in a high yield as maintaining the conditions for purifying acrylic acid in constant ranges and preventing the acrylic acid from polymerization. By using single a single reactor, propylene concentration adjusting in the range of 7–15 vol. % and water concentration adjusting in the range of 0–10 vol. % are introduced thereinto thereby obtaining an acrylic acid-containing gas. Then the gas is introduced to an acrylic acid absorption column to adjust water concentration in the range of 1–45 wt. %, thereby preventing from polymerization.Type: GrantFiled: August 1, 2003Date of Patent: September 19, 2006Assignee: Nippon Shokubai Co., LTDInventors: Harunori Hirao, Yukihiro Matsumoto, Kenji Sanada, Takeshi Nishimura
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Patent number: 7109374Abstract: A process for the continuous recovery of (meth)acrylic acid from the reaction gas of a catalytic gas-phase oxidation comprising the following process stages is proposed: I quenching of the reaction gas by evaporative cooling using a high-boiling solvent, II separation of the (meth)acrylic acid from the quenched reaction gas by absorption into the high-boiling solvent, III separation of the solvent laden with (meth)acrylic acid by rectification into a first part-stream IIIA), which contains predominantly (meth)acrylic acid, and into a second part-stream IIIB) which contains predominantly the solvent, IV recycling of the stream IIIB) to process stage II and V distillative production of (meth)acrylic acid from stream IIIA), all liquid residual streams obtained in process stage V being recycled to process stage I.Type: GrantFiled: March 28, 2002Date of Patent: September 19, 2006Assignee: BASF AktiengesellschaftInventors: Otto Machhammer, Christoph Adami, Claus Hechler, Juergen Schroeder, Volker Schliephake, Joachim Thiel, Volker Diehl
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Patent number: 7102034Abstract: A process for preparing sulfonated arylphosphines by reaction of arylphosphines with oleum, wherein, after reaction of the arylphosphines with oleum, the sulfonation mixture is firstly diluted with water, an inert gas stream is then passed through the diluted sulfonation mixture until SO2 is no longer liberated from the diluted sulfonation mixture and the latter is then worked up further in a customary manner and its use.Type: GrantFiled: December 8, 2004Date of Patent: September 5, 2006Assignee: Celanese Chemicals Europe GmbHInventors: Michael Riedel, Ernst Wiebus, Carl D Frohning, Wilfried Fenske, Florian Rampf, Jurgen Herwig, Helmut Bahrmann, Klaus Bergrath, Wolfgang Zgorzel-Ski, Robert Eckl, Hans Bohnen, Richard Fischer, Kurt Schalapski, Wolfgang Greb
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Patent number: 7094926Abstract: A nitrous acid salt is added at a temperature of 10 to 80° C. to an aqueous solution which contains an optically active 2-aminocarboxylic acid (4) and a protonic acid, the amount of the latter acid being 1 to 3 equivalents to the former, and which has a proton concentration of 0.5 to 2 mol/kg to conduct a reaction to thereby produce an optically active 2-hydroxycarboxylic acid (1). Thionyl chloride and a basic compound are caused to act on the compound (1) to chlorinate it and simultaneously invert the configuration in the 2-position. Thus, an optically active 2-chlorocarboxylic acid chloride (5) is induced. The compound (5) is hydrolyzed to induce an optically active 2-chlorocarboxylic acid (2). The compound (2) is reacted with a thioacetic acid salt to incorporate an acetylthio group thereinto and simultaneously invert the configuration in the 2-position to thereby produce an optically active 2-acetylthiocarboxylic acid (3).Type: GrantFiled: January 25, 2001Date of Patent: August 22, 2006Assignee: Kaneka CorporationInventors: Susumu Amano, Masaru Mitsuda, Kenji Inoue, Koichi Kinoshita, Koki Yamashita, Yasuyoshi Ueda
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Patent number: 7094924Abstract: Disclosed is a method for decreasing the surface defects of a patterned photoresist layer on a substrate surface obtained by the procedure comprising the steps of (a) forming a photoresist layer of a positive-working chemical-amplification photoresist composition on the substrate surface, (b) patternwise exposing the photoresist layer to actinic rays, (c) subjecting the patternwise-exposed photoresist layer to a post-exposure baking treatment and (d) a development treatment. The improvement can be accomplished by bringing the photoresist layer after the post-exposure baking treatment into contact with an aqueous acidic solution having a pH of 3.5 or lower for 1 to 90 seconds. The acid contained in the aqueous acidic solution is preferably an aromatic sulfonic acid or, more preferably, a diphenyl ether sulfonic acid such as dodecyl(diphenyl ether) disulfonic acids.Type: GrantFiled: January 31, 2003Date of Patent: August 22, 2006Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Kazuyuki Nitta, Taku Nakao, Satoshi Maemori, Tatsuya Matsumi
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Patent number: 7084303Abstract: The present invention provides ester group-containing tertiary amine compounds of the formula (R1OCH2CH2)nN(CH2CH2CO2R2)3-n which, when used as additives in chemical amplification photolithography, can yield photoresists having a high resolution and an excellent focus margin. The present invention also provides a process comprising the step of subjecting a primary or secondary amine compound to Michael addition to an acrylic ester compound; a process comprising the steps of subjecting monoethanolamine or diethanolamine to Michael addition to an acrylic ester compound so as to form an ester group-containing amine compound and introducing a R1 group to the resultant ester group-containing amine compound; and a process comprising the step of effecting the ester exchange reaction of an ester group-containing tertiary amine with R2OH.Type: GrantFiled: April 22, 2002Date of Patent: August 1, 2006Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takeru Watanabe, Koji Hasegawa, Takeshi Kinsho, Jun Hatakeyama
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Patent number: 7081549Abstract: A process for the production of acetic acid, which process comprises contacting ethane and/or ethylene with a molecular oxygen-containing gas in a fluid bed reactor in the presence of a microspheroidal fluidised particulate solid oxidation catalyst, wherein at least 90% of said catalyst particles are less than 300 microns.Type: GrantFiled: March 5, 2001Date of Patent: July 25, 2006Assignee: BP Chemicals LimitedInventors: John Cook, Brian Ellis, Philip Howard, Michael David Jones, Simon James Kitchen
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Patent number: 7078562Abstract: The adamantane derivatives of the present invention which are represented by the general formula (1): wherein X is a hydrogen atom, alkyl, halogen-containing alkyl, halogen, or hydroxyl-, halogen-, nitrile- or ether-containing hydrocarbyl, and a plurality of X groups, if any, may be the same or different from each other; n1 is an integer of 1 to 14; R1 to R4 may be the same or different from each other and are independently alkyl or halogen-containing alkyl; and Y1 and Y2 may be the same or different from each other and are independently a hydrogen atom or a group represented by the general formula (2): wherein R5 to R7 may be the same or different from each other and are independently a hydrogen atom, alkyl, halogen or halogen-containing alkyl, are excellent in optical properties, heat resistance and acid-dissociating property, and useful as crosslinking-type resins, optical materials such as optical fibers, light wave guides, optical disk substrates and photoresists as well as raw materials thereofType: GrantFiled: January 11, 2005Date of Patent: July 18, 2006Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Kikuo Furukawa, Minoru Kakuda, Yoshio Nishimura, Toshiaki Yamada
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Patent number: 7078560Abstract: A process for the preparation of aminoalkyl (meth)acrylates by transesterification from C1–C4-alkyl (meth)acrylates and aminoalcohols is described, in which process the transesterification is carried out in the presence of at least one distannoxane of the general formula (1) wherein R=linear, cyclic or branched alkyl radical having from 1 to 6 carbon atoms, phenyl radical, and the radicals R may be identical or different from one another, Y=halogen, preferably Cl, Br; pseudo-halogen, preferably SCN; OH, OAc or OR, the radicals Y being identical or different from one another, as catalyst, and the use of the aminoalkyl (meth)acrylates prepared according to the process in the preparation of cationic monomers.Type: GrantFiled: November 8, 2004Date of Patent: July 18, 2006Assignee: Stockhausen GmbH & Co. KGInventors: Jochen Houben, Ralph Eickwinkel, Oliver Hoppe, Bernd Kubiak, Erich Kuester
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Patent number: 7078576Abstract: The present invention is an industrially advantageous process for isopropyl chloride production in which the catalytic activity can be maintained under the milder reaction conditions than in the conventional processes, and which requires no special reactor. Propylene and hydrogen chloride is reacted in a gas phase, in the presence of iron or a halogenated aluminum oxide (preferably, aluminum oxide reacted with hydrogen chloride). Preferably, a temperature during the reaction is 20 to 100° C., and a pressure of the reaction is 1013 to 3039 hPa (absolute pressure).Type: GrantFiled: May 24, 2004Date of Patent: July 18, 2006Assignees: Kashima Chemical Company, Limited, Asahi Glass Company, LimitedInventors: Tomoko Matsumoto, Tateo Nakano, Yutaka Yokoyama, Tomoji Makiguchi
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Patent number: 7078556Abstract: The invention relates to new antibiotics designated Cyan-416A, Cyan 416B, Cyan-416C, Cyan-416D and Cyan-416E to their production by fermentation of Acremonium sp. NRRL 30631 to methods for recovery and concentration from the crude solutions, and to a process for purification and to semisynthetic ethers of Cyan-416B.Type: GrantFiled: December 16, 2005Date of Patent: July 18, 2006Assignee: Wyeth Holdings CorporationInventors: Haiyin He, Ramunas Bigelis
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Patent number: 7078559Abstract: The present invention relates to a method of producing an acetate derivative represented by the formula (II) by demonocarboxylating dimalonate represented by the formula (I), wherein water is supplied while the concentration of water in a demonocarboxylating reaction solution is controlled to 0.4% by weight or less to run demonocarboxylation: wherein n denotes an integer of 1 or 2, R1 and R2 represent H, a C1-8 alkyl group or the like and R3 represents a C1-3 alkyl group.Type: GrantFiled: July 13, 2004Date of Patent: July 18, 2006Assignee: Kao CorporationInventors: Koji Mine, Hisanori Hagi