Patents Issued in January 14, 2003
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Patent number: 6506916Abstract: A process for refining fatty substances in order to selectively and quantitatively separate therefrom the free fatty acids. The process combines the extraction with an alcohol or a polyol and a neutralization is conducted with an alkali at a controlled pH of 9 to 11.Type: GrantFiled: February 9, 2001Date of Patent: January 14, 2003Assignee: Nestec S.A.Inventor: Raymond Bertholet
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Patent number: 6506917Abstract: In accordance with the present invention, there are provided methods to modulate processes mediated by retinoid receptors, employing high affinity, high specificity ligands for such receptors. In one aspect of the present invention, there are provided ligands which are more selective for the retinoid X receptor than is retinoic acid (i.e., rexoids). In another aspect of the present invention, alternative ligands (other than retinoic acid) have been discovered which are capable of inducing retinoic acid receptor mediated processes. In yet another aspect, methods have been developed for the preparation of such retinoid receptor ligands from readily available compounds.Type: GrantFiled: June 7, 1995Date of Patent: January 14, 2003Assignee: The Salk Institute for Biological StudiesInventors: Ronald M. Evans, David J. Mangelsdorf, Richard A. Heyman, Marcus F. Boehm, Gregor Eichele, Christina Thaller
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Patent number: 6506918Abstract: This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand—solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction comprising passing reactants for a esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or a urethane, urea, siliconeType: GrantFiled: November 9, 2001Date of Patent: January 14, 2003Assignee: Atofina Chemicals, Inc.Inventors: William D. Honnick, Gerald H. Reifenberg, Kevin C. Cannon
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Patent number: 6506919Abstract: The present invention relates to a metallocene compound and the olefin polymerization using the same, particularly to a metallocene compound and the olefin polymerization using this compound on which supported catalysts are easily prepared by the reaction of the ligand containing —(CR12)a—O—SiRbYc ligand (wherein each Y, which can be the same as or different from other Y, is a hydrogen, halogen, alkoxy, aryloxy, amide, or silyloxy radical, each R1, which can be the same as or different from other R1, is a hydrogen radical, or an alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical having from 1 to 40 carbon atoms, each R, which can be the same as or different from other R, is an alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical having from 1 to 40 carbon atoms, a is an integral number from 1 to 40, c is 1, 2, or 3, and the sum of b and c is 3) with a support.Type: GrantFiled: August 31, 2001Date of Patent: January 14, 2003Assignee: LG Chemical Co., Ltd.Inventors: Jae-Seung Oh, Bun-Yeoul Lee, Joo-Eun Lee, Do-Hoon Lee
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Patent number: 6506920Abstract: Olefins such as ethylene and propylene may be polymerized by using as catalysts novel selected transition metal complexes of bis(carboximidamidatonates) in which the carboximidamidatonate groups are connected together through covalent bonds by a bridging group. The resulting polymers are useful as molding and extrusion resins.Type: GrantFiled: April 2, 2001Date of Patent: January 14, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Steven Dale Ittel, Edward Bryan Coughlin, Ying Wang
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Patent number: 6506921Abstract: Disclosed are compounds produced by a process comprising the step of reacting an amine reactant with an epoxide reactant to form a hydrolytically stable carbon-nitrogen bond therebetween, wherein at least one of the amine or epoxide reactants comprises a terminal alkoxysiyl group. Also disclosed are curable compositions comprising the compounds of the present invention and the cured products derived therefrom.Type: GrantFiled: June 29, 2001Date of Patent: January 14, 2003Assignee: Virginia Tech Intellectual Properties, Inc.Inventors: Garth L. Wilkes, Chenghong Li
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Patent number: 6506922Abstract: Process for the production of yellow bis(3-[triethoxysilyl]propyl)polysulfane with an average sulfur chain length of less than 4 and an iodine colour value of ≦10 mg iodine/100 ml, wherein neutral chloropropyltriethoxysilane is mixed with chloropropyltrichlorosilane and then reacted with sodium sulfide (Na2S) and sulfur, disodium tetrasulfide (Na2S4) and Na2S or disodium trisulfide (Na2S3) and Na2S in ethanol.Type: GrantFiled: September 10, 2001Date of Patent: January 14, 2003Assignee: Degussa AGInventors: Roland Krafczyk, Ulrich Deschler, Rudolf Michel, Christoph Batz-Sohn
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Patent number: 6506923Abstract: In a process for preparing oganohalosilanes by reacting metallic silicon particles with an organohalide in the presence of a copper catalyst, a contact mass composed of the metallic silicon and the catalyst further contains a minute, but effective amount of a catalytic metal powder which has been produced by an atomizing technique. The process is successful in drastically increasing a formation rate without lowering the selectivity of useful silane.Type: GrantFiled: February 14, 2002Date of Patent: January 14, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tetsuya Inukai, Susumu Ueno, Toshio Shinohara, Mikio Aramata, Yoichi Tanifuji, Hajime Ishizaka
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Patent number: 6506924Abstract: 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: GrantFiled: March 30, 2001Date of Patent: January 14, 2003Assignee: General Electric CompanyInventors: Marsha Mottel Grade, John Yaw Ofori, Eric James Pressman
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Patent number: 6506925Abstract: This invention describes a process for covalently coupling organic compounds which comprises reacting an olefinic compound having a halogen or halogen-like substituent at a coupling position with a diboron derivative in the presence of a Group VIII metal catalyst and a suitable base. The invention also describes a process for preparing alkene borate intermediates comprising reacting an olefinic compound having a halogen or halogen-like substituent with a diboron derivative in the presence of a Group VIII metal catalyst and a suitable base.Type: GrantFiled: July 24, 2001Date of Patent: January 14, 2003Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Sebastian Mario Marcuccio, Mary Rodopoulos, Helmut Weigold
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Patent number: 6506926Abstract: A process for preparing a compound of the formula: which comprises reacting a compound of the formula: wherein R3 is nitro or halo, with a compound of formula R1S—X wherein X is hydrogen or alkali metal.Type: GrantFiled: March 28, 2000Date of Patent: January 14, 2003Assignee: Rhone-Poulenc AgroInventors: Didier Bernard, Alain Truchon
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Patent number: 6506927Abstract: Provided is a selective hydrogenation process for producing aminonitriles by contacting the corresponding dinitriles with a hydrogen-containing fluid in the presence of a hydrogenation catalyst, a solvent and a quaternary ammonium cyanate additive.Type: GrantFiled: October 2, 2001Date of Patent: January 14, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Alex Sergey Ionkin
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Patent number: 6506928Abstract: The invention relates to dendrimeric fullerene derivatives in which the fullerene is linked to at least one dendron, wherein the or each dendron has at least one protic group which imparts water solubility.Type: GrantFiled: August 31, 2000Date of Patent: January 14, 2003Assignee: Siemens Axiva GmbH & Co. KGInventor: Andreas Hirsch
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Patent number: 6506929Abstract: A process is disclosed for the preparation of simvastatin which enables highly regio selective C-methylation of the 2′-position group of lovastatin without requiring protection/deprotection of 13-OH of lovastatin and lactone ring opening/closure.Type: GrantFiled: April 24, 2001Date of Patent: January 14, 2003Assignee: Apotex Inc.Inventors: Khashayar Karimian, Tim Fat Tam, Yong Tao, Yiwei Li, Gary Doucette
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Patent number: 6506930Abstract: A process for preparing alkyl acrylates is disclosed. The process provides for the synthesis of alkyl (meth)acrylates, hydrolysis of process impurities into starting materials and separation of starting materials and reaction products in one reactor.Type: GrantFiled: October 13, 1999Date of Patent: January 14, 2003Assignee: Rohm and Haas CompanyInventors: Jeremia Jesaja Venter, Mario Giuseppe Luciano Mirabelli
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Patent number: 6506931Abstract: A process for producing an aromatic carboxylic acid by a liquid phase oxidation of an alkylaromatic compound with molecular oxygen in a reaction solvent comprising a lower aliphatic carboxylic acid in the presence of an oxidation catalyst, in which an aromatic carboxylic acid having an improved hue of the powdery product thereof and exhibiting an improved light transmittance when dissolved in an aqueous solution of a base can be produced efficiently in a simple manner by suppressing contamination due to the intermediates and by-products formed by side reactions, the said process comprising performing the liquid phase oxidation of the alkylaromatic compound in the presence of a hydrogen gas-treated liquid containing the catalyst.Type: GrantFiled: September 7, 2000Date of Patent: January 14, 2003Assignee: Mitsui Chemicals, Inc.Inventors: Masayasu Ishibashi, Hiroshi Tomita
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Patent number: 6506932Abstract: A method for oxidizing an aromatic compound possesssing at least one alkyl substituent by using a catalyst avoids containing a corrosive bromine ion, remains stably without being decomposed even in an oxidizing atmospherfe, and permits reclamation is provided. An aromatic compound possessing at least one alkyl substituent is oxidized by using a catalyst which has at least one kind of element selected from the group consisting of phosphorus, silicon, and germanium as a hetero atom and at least one kind of element selected from the group consisting of molybdenum, tungsten, vanadium, and niobium as a poly atom and comprises a heteropoly-oxometalate anion possessing two defective structure site and at least one kind of element selected from the group of elements of Periods 4˜6 of Groups IB, VA,VIIA, and VIII in the Periodic Table of the Elements.Type: GrantFiled: November 7, 2001Date of Patent: January 14, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Yasutaka Sumida, Masahiro Wada, Noritaka Mizuno
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Patent number: 6506933Abstract: Disclosed herein is a vapor phase carbonylation process useful for producing carboxylic acids, esters and mixtures thereof from lower aliphatic alcohols, ethers, ester, and ester-alcohol mixtures. The vapor phase carbonylation process is characterized in that it utilizes a solid supported catalyst having an effective amount of gold associated with a solid support material.Type: GrantFiled: May 22, 2000Date of Patent: January 14, 2003Assignee: Eastman Chemical CompanyInventors: Joseph Robert Zoeller, Andy Hugh Singleton, Gerald Charles Tustin, Donald Lee Carver
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Patent number: 6506934Abstract: This invention relates to a compound that is represented by the following Structure I: R1—SO2—C(R2)R3—(CO)m—(L)n—SG I wherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is an divalent linking group, m and n are independently 0 or 1, SG is a solubilizing group with a pKa of 8 or less, with the proviso that when m and n are both 0, SG is not a sulfo (or salt thereof) or a sulfonamido (or salt thereof) and when m is 0 and n is 1, either L is not an alkylene group or SG is not a carboxy (or salt thereof).Type: GrantFiled: December 11, 2001Date of Patent: January 14, 2003Assignee: Eastman Kodak CompanyInventors: George J. Burgmaier, Roger L. Klaus
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Patent number: 6506935Abstract: For the removal of trace quantities of iodine-containing contaminants from corrosive liquid feed streams (e.g. commercial acetic acid), an adsorbent with distinct advantages over prior-art materials is provided. The overall treatment method involves the use of a suitable zeolite having a silica to alumina molar ratio from about 5 to less than 15 that has been cation-exchanged with an iodine-reactive metal. This inorganic adsorbent may be used in unbound form, or it can be bound with a substantially insoluble porous inorganic refractory metal oxide binder. Reactivation and regeneration techniques, which are generally incompatible with prior-art adsorbent materials, are also disclosed. In general, it is advantageous to pretreat the feed streams to remove the most easily separable contaminants (e.g. iodine, hydrogen iodide, and metal cations) and thereby reduce the iodine compound loading and detrimental effects of metals on the adsorbent. Thus, the expensive iodine reactive metal (e.g.Type: GrantFiled: July 13, 2001Date of Patent: January 14, 2003Assignee: UOP LLCInventors: Santi Kulprathipanja, Bipin V. Vora, William A. Leet
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Patent number: 6506936Abstract: The present invention relates to a novel class of organic molecules capable of inhibiting C-proteinase, and to their use to regulate, modulate and/or inhibit abnormal collagen formation as a therapeutic approach towards the treatment of fibrotic disorders.Type: GrantFiled: February 25, 1999Date of Patent: January 14, 2003Assignee: FibroGen, Inc.Inventor: Wen-Bin Ho
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Patent number: 6506937Abstract: Benzenesulfonylureas and -thioureas of the formula I where R(1) is H or (fluoro)methyl, R(2) is H, Hal or (fluoro) (mercapto)alk(oxy)yl, E is O or S; Y is —[CR(3)2]n—, where R(3)=H or alkyl and n=1-4, X is H, Hal or alkyl and Z is Hal, NO3 or alk(yl)oxy, are described. The compounds I are used for treatment of disturbances in cardiac rhythm and prevention of sudden cardiac death caused by arrhythmia, and can therefore be used an antiarrhythmics. They are particularly suitable for those cases where arrhythmias are a consequence of a narrowing of a coronary vessel, such as angina pectoris or acute cardiac infarction.Type: GrantFiled: November 29, 2001Date of Patent: January 14, 2003Inventors: Heinrich Englert, Dieter Mania, Jens Hartung, Heinz Gögelein, Joachim Kaiser, Wolfgang Linz, David Wettlaufer
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Patent number: 6506938Abstract: A process for purifying Iopamidol which uses a butanol as solvent is described. Iopamidol is obtained with high yields, also starting from aqueous solutions of the same and has characteristics in accordance with those required by pharmacopoeia.Type: GrantFiled: August 25, 1998Date of Patent: January 14, 2003Assignee: Bracco International B.V.Inventors: Marco Villa, Maurizio Paiocchi
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Patent number: 6506939Abstract: A process for the preparation of a mixture comprising a compound of formula (1) and a compound of formula (2) wherein R1 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl, optionally substituted C5-7 cycloalkyl or optionally substituted benzyl, R2 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl or optionally substituted C5-7 cycloalkyl, A is either S or NR3, R3 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl or optionally substituted C5-7 cycloalkyl, or R2 and R3 together form a 5-7 membered ring which can contain an oxygen atom, R4 is hydrogen or methyl, R5 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl, optionally substituted C5-7 cycloalkyl or optionally substituted benzyl and, R6 is hydrogen or an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl or optionally substituted C5-7 cycloalkyl, or R5 and R6 together form a 5-7 membered ring which can contType: GrantFiled: July 13, 2001Date of Patent: January 14, 2003Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Peter Stuart Littlewood, Michael Singh
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Patent number: 6506940Abstract: A process for converting the cis (1R, 4R), trans (1S, 4R), and trans (1R, 4S) stereoisomers of sertraline into sertraline comprises, starting with an initial reaction mixture which contains at least one of these stereoisomers, converting the sertraline stereoisomers into an imine form of sertraline. The imine form of sertraline is then reduced so that sertraline and at least one sertraline stereoisomer byproduct is produced in the reaction mixture. The sertraline is then recovered from the reaction mixture, e.g., by fractional crystallization (followed by resolution of sertraline from the cis (1R, 4R) stereoisomer, if necessary). The reaction mixture is then recycled through the same steps so that sertraline is produced from its stereoisomers in an asymptotic yield.Type: GrantFiled: November 10, 2000Date of Patent: January 14, 2003Assignee: Sun Pharmaceuticals Industries Ltd.Inventors: Kanaksinh J. Jadav, Trinadha Rao Chitturi, Rajamannar Thennati
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Patent number: 6506941Abstract: A process for the preparation of venlafaxin and/or the physiologically acceptable addition salts thereof that consists of reacting a compound of general formula (II) where R is a C1-C10 alkyl, aryl, aralkyl or cycloalkyl group of 3 to 6 atoms of carbon, with a organomagnesium compound of general formula (III) where X is an atom of halogen and, if desired, a salt of the thus obtained venlafaxin is formed by reaction thereof with a physiologically acceptable acid.Type: GrantFiled: January 25, 2002Date of Patent: January 14, 2003Assignee: Medichem, S.A.Inventors: Carmen Arnalot i Aguilar, Jordi Bosch i Lladó, Pelayo Camps Garcia, Maria del Carmen Onrubia Miguel, Núria Soldevilla Madrid
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Patent number: 6506942Abstract: The invention relates to a process for the preparation of a carbonyl compound of the general formula (1) R1R2C═O (1), in which a &bgr;-hydroxycarboxylic acid or its salt of the general formula (2) R1R2C(OH)—CR3R4—COOM (2) is cleaved in the presence of a Brönstedt base which is selected from hydroxides, alkanolates, oxides, amides and hydrides of the alkali metals and alkaline earth metals, and in the presence of a hydroxyl-free solvent, R1, R2, R3, R4 and M having the meanings from claim 1.Type: GrantFiled: October 12, 2001Date of Patent: January 14, 2003Assignee: Consortium Fur Elektrochemische Industrie GmbHInventors: Klas Sorger, Hermann Petersen, Juergen Stohrer
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Patent number: 6506943Abstract: A process for producing an aldehyde of the invention allows a 1,2-diol (vic-diol) to react with oxygen in the presence of a ruthenium catalyst supported on a carrier to oxidatively cleave a bond between two carbon atoms, where hydroxyl groups are combined with the carbon atoms, to thereby yield a corresponding aldehyde. The carrier includes, for example, an activated carbon. As a catalytic component to be supported on the carrier, dichlorotris(triphenylphosphine)ruthenium(II), and other organic ruthenium complexes, for example, can be used. The invention can efficiently produce a corresponding aldehyde by oxidative cleavage of a 1,2-diol with oxygen.Type: GrantFiled: January 12, 2001Date of Patent: January 14, 2003Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasutaka Ishii, Tatsuya Nakano
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Patent number: 6506944Abstract: C6 compounds of the formula (I) E—CH2—CH═CH—CH2—E1 (I) are prepared by self metathesis or cross metathesis of compounds of the formulae (II) and/or (III) R—CH═CH—CH2—E (II) R1—CH═CH—CH2—E1 (III) where E, E1 are independently —CHO, —COOH, —COOR2, —C(O)NR3R4, —CN, R, R1 are independently H, C1-12-alkyl, C6-12-aryl or C7-13-alkylaryl and R2, R3, R4 are independently H, C1-12-alkyl, C7-13-aralkyl, in the presence of a homogeneous catalyst comprising ruthenium compounds or ruthenium complexes.Type: GrantFiled: February 17, 2000Date of Patent: January 14, 2003Assignee: BASF AktiengesellschaftInventors: Peter Schwab, Michael Schulz
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Patent number: 6506945Abstract: A process for preparing an ether-capped poly(oxyalkylated) alcohol surfactant is provided. The alcohol has the formula: RO(R1O)xCH(CH3)OR2 wherein R is selected from the group consisting of linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radicals having from about 1 to about 30 carbon atoms; R1 may be the same or different, and is independently selected from the group consisting of branched or linear C2 to C7 alkylene in any given molecule; x is a number from 1 to about 30; and R2 is a six membered substituted or unsubstituted, saturated or unsaturated, cyclic or aromatic hydrocarbon radical.Type: GrantFiled: December 8, 2000Date of Patent: January 14, 2003Assignee: The Procter & Gamble CompanyInventors: Bernard William Kluesener, Mark Robert Sivik, Glenn Thomas Jordan, IV, Paul William Huber, Jr., Philippe Neyraval, Christian Priou
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Patent number: 6506946Abstract: The present invention provides a process for producing an acetylenediol continuously by reacting a ketone with acetylene in the presence of an alkali catalyst, which process comprises continuously feeding, into a first-stage reactor, a reaction solvent, an alkali catalyst, a ketone and acetylene to give rise to a reaction, continuously introducing the reaction mixture into a second-stage reactor, and continuously feeding a fresh portion of the same ketone into the second-stage reactor to give rise to a reaction.Type: GrantFiled: June 12, 2002Date of Patent: January 14, 2003Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Hideki Omori, Goro Sawada, Hideo Fukuda, Kazuhiro Imanishi, Tomohiko Sato
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Patent number: 6506947Abstract: The subject-matter of the invention is a fluorinated diol and its process of preparation. The fluorinated diol corresponds to the formula (I): CnF2n+1—A—CH2OCH2—C(CH2OH)2—R in which n has a value from 2 to 20 and A means —CH═CH— or —CH2CH2— and R is an alkyl group comprising 1 to 4 carbon atoms.Type: GrantFiled: December 20, 2001Date of Patent: January 14, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Marie-Jose Lina, Eric Lacroix, Sophie Vanpoulle, Gerard Orcel, Robert Overton
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Patent number: 6506948Abstract: This invention relates to an improvement in a process for the production of dinitrotoluene and particularly to the recovery of dinitrotoluene and organic by-products from the wastewater and wash waters generated in the process. Wastewater and wash water streams contaminated with residual levels of mononitrotoluene, dinitrotoluene, and organic by-products, formed in the purification process, are contacted with toluene. An organic phase and an aqueous phase are generated. The phases are separated and the dinitrotoluene recovered from the organic phase.Type: GrantFiled: February 7, 2002Date of Patent: January 14, 2003Assignee: Air Products and Chemicals, Inc.Inventor: John Edward Sawicki
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Patent number: 6506949Abstract: A tubular reactor characterized by having short static mixing elements separated by coalescing zones is used to conduct multiphase liquid/liquid reactions. Small droplets of one of the phases are dispersed into the other phase by the static mixing elements. These droplets coalesce and at least partially phase separate as the mixture passes through the subsequent coalescing zone. The tubular reactor is particularly suitable for nitrating organic compounds while forming low levels of improperly nitrated by-products and low levels of nitrophenolics.Type: GrantFiled: March 1, 2001Date of Patent: January 14, 2003Assignee: Dow Global Technologies, Inc.Inventors: Paul A. Gillis, Helge Braun, Joerg Schmidt, Jan Willem Verwijs, Harald Velten, Kristina Platkowski
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Patent number: 6506950Abstract: The compounds CF3CHFCHFCF2CF3, CF3CH2CHFCF2CF3, CF3CHFCH2CF2CF3, CF3CHFCHFCF2CF2CF3, CF3CH2CHFCF2CF2CF3, CF3CHFCH2CF2CF2CF3, CF3CF2CH2CHFCF2CF3, CF3CF2CHFCHFCF2CF2CF3, CF3CHFCHFCF2CF2CF2CF3, CF3CHFCH2CF2CF2CF2CF3, CF3CH2CHFCF2CF2CF2CF3, CF3CF2CHFCH2CF2CF2CF3, and CF3CF2CH2CHFCF2CF2CF3; and compositions thereof. Catalytic processes using Group VIII metals are disclosed for reacting selected olefinic starting materials with hydrogen to produce as the major products dihydropolyfluoroalkanes or trihydropolyfluoroalkanes wherein the hydrogens are positioned on two adjacent carbon atoms; as are processes using iodine and/or hydrogen iodide in the reduction of selected olefinic starting materials to dihydropolyfluoroalkanes or trihydropolyfluoroalkanes.Type: GrantFiled: June 2, 1995Date of Patent: January 14, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Carl George Krespan
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Patent number: 6506951Abstract: The invention relates to a process for producing a brominated trifluoromethylbenzene represented by the general formula (1). This process includes brominating in a liquid or gas phase a trifluoromethylbenzene, represented by the general formula (2), by bromine in the presence of a catalyst under a condition that the bromine is coexistent with chlorine, where n is an integer of 1-2, and m is an integer of 1-3 where n is an integer of 1-2. The catalyst is preferably iron chloride in the case of the bromination in a liquid phase. It is preferably activated carbon carrying thereon iron chloride in the case of the bromination in a gas phase. The trifluoromethylbenzene is turned to the brominated trifluoromethylbenzene with high reactivity and high yield.Type: GrantFiled: April 19, 2000Date of Patent: January 14, 2003Assignee: Central Glass Company, LimitedInventors: Eri Tsukada, Mikio Ujiie, Shozo Kaneda, Satoru Narizuka, Takashi Kume
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Patent number: 6506952Abstract: Hexabromocyclododecane with enhanced gamma isomer content is produced by brominating cyclododecatriene in a liquid medium comprised of (1) at least 50 wt % of at least one liquid inert organic solvent other than 1,4-dioxane having a solubility in water of at least 1 wt % at 25° C., and (2) water in an amount of up to about 40 wt %, in the presence of (3) about 0.5 to about 30 wt % of bromide ion (Br−), each wt % being based on the total weight of the liquid portion of the liquid medium.Type: GrantFiled: October 18, 2001Date of Patent: January 14, 2003Assignee: Albemarle CorporationInventor: John K. Kendall
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Patent number: 6506953Abstract: There is described a process the hydroalkylation of an aromatic hydrocarbon, particularly benzene, to produce a cycloalkyl-substituted aromatic compound, particularly cyclohexylbenzene, comprising the step of contacting the aromatic hydrocarbon with hydrogen in the presence of a catalyst comprising MCM-68 and at least one metal having hydrogenation activity.Type: GrantFiled: January 24, 2000Date of Patent: January 14, 2003Assignee: ExxonMobil Oil CorporationInventors: Jane Chi-Ya Cheng, Ajit B. Dandekar, Michael Alan Steckel, Hye Kyung Cho Timken
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Patent number: 6506954Abstract: There is provided a process for converting methanol and/or dimethyl ether to a product containing olefin, e.g., C2 to C4 olefins, C9+ aromatics and non-C9+ aromatics which comprises: 1) contacting a feed which contains methanol and/or dimethyl ether with a catalyst comprising a porous crystalline material, said contacting step being conducted in the presence of aromatics comprising C9 or C9+ aromatic compound produced in said process under conversion conditions including a temperature of 350° C. to 480° C. and a methanol partial pressure in excess of 10 psia (70 kPa), said porous crystalline material having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1 sec−1 to about 20 sec−1 when measured at a temperature of 120° C.Type: GrantFiled: October 13, 2000Date of Patent: January 14, 2003Assignee: Exxon Mobil Chemical Patents, Inc.Inventors: Stephen H. Brown, Larry A. Green, Mark F. Mathias, David H. Olson, Robert A. Ware, William A. Weber, Reuel Shinnar
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Patent number: 6506955Abstract: A boiling water reactor is chemically decontaminated by circulating a decontamination solution through reactor recirculation loops and the annulus region of a reactor pressure vessel that surrounds the central core region while bypassing the central core region. The decontamination solution may also be circulated between the annulus region and a lower internals region while bypassing the central core region. The solution dissolves or breaks down metal oxide layers on the surfaces of the boiling water reactor. The metal oxide layers in the central core region and the activated metal ions contained in these layers, which do not substantially contribute to personnel exposure, are not released and, therefore, do not need to be removed from the solution.Type: GrantFiled: May 10, 2000Date of Patent: January 14, 2003Assignee: Westinghouse Electric Company LLCInventors: David W. Wilson, Ronald Morris, Peter M. Newton, Gregory D. Paul, Thomas J. Gammon, John Michael Parke
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Patent number: 6506956Abstract: The invention provides lignin-degradable fungi capable of degrading dioxins that have accumulated in the soil for farm crops, into harmless substances; a method for degrading dioxins by applying the fungi to a dioxin-containing object to such a degree that the cell concentration in the object reaches at least 1×102 cfu per gram of the object; compost containing the fungi; a method for producing compost that comprises a step of thermally fermenting a lignin-containing, plant-derived organic material to be compost, at a temperature falling between 65 and 100° C. for at least 2 hours, followed by inoculating the thus-fermented material with lignin degrading enzymes-producing fungi and further fermenting it; and a method of using the compost for cultivating plants.Type: GrantFiled: October 30, 2000Date of Patent: January 14, 2003Assignee: Idemitsu Kosan Co., Ltd.Inventors: Junichiro Yuki, Motoshi Suzuki, Hideo Miyamoto
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Patent number: 6506957Abstract: Self-adhesive shaped body which is adapted to the anatomy, has a proprioceptive effect and is intended for medical purposes, having a bond strength of from 1 N/cm to 25 N/cm, an extensibility of more than 10%, a thickness of more than 0.5 mm and a resilience of more than 50% for a tensile stress of 5 N/cm2.Type: GrantFiled: July 20, 2000Date of Patent: January 14, 2003Assignee: Beiersdorf AGInventors: Peter Himmelsbach, Thorsten Herzberg
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Patent number: 6506958Abstract: There is provided a tampon that comprises an absorbent pledget and a menstrual fluid indicator associated therewith. The absorbent pledget has a proximal end that is placed near the cervical bone and a distal end opposite the proximal end. The indicator is preferably an additional layer formed and in contact with the entire circumference of the absorbent pledget, and is located near the distal end. The indicator is designed to provide a sensory signal to the user that the capacity of the absorbent pledget of the tampon is exhausted, or just before by-pass leakage commences.Type: GrantFiled: January 26, 2001Date of Patent: January 14, 2003Assignee: Playtex Products, Inc.Inventor: Karla E Williams
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Patent number: 6506959Abstract: An absorbent article comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent layer is disclosed. The absorbent layer comprises a superabsorbent polymer and hydrophilic fiber or foam that does not swell with water or hydrophilic fiber or foam that has a water retention of 0.7 g/g or less when it is swollen with water and then dewatered by centrifugation. The absorbent article has a physiological saline fixing ratio of 90% or more when it absorbs 10 g of physiological saline and, after 5 minutes, is dewatered by centrifugation.Type: GrantFiled: March 29, 2001Date of Patent: January 14, 2003Assignee: Kao CorporationInventors: Mitsugu Hamajima, Mayumi Kimura, Yasuo Toyoshima, Minoru Nakanishi
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Patent number: 6506960Abstract: It is one aspect of the present invention to provide a liquid handling member which combines high liquid suction capability with a high permeability. It is another aspect of the present invention to provide liquid handling member which combines a high liquid suction capability with a fast 80 percent capacity absorption time. The present invention further provides devices for handling body liquids which comprise the liquid handling member of the present invention such as for example baby diapers, training pants, sanitary napkins, adult incontinence devices, bed mats, and the like.Type: GrantFiled: December 20, 2000Date of Patent: January 14, 2003Assignee: The Procter & Gamble CompanyInventors: Gerald Alfred Young, Gary Dean Lavon, Bruno Johannes Ehrnsperger, Mattias Schmidt
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Patent number: 6506961Abstract: A disposable absorbent article, e.g., a pantiliner, or other absorbent pad. The pad is an elongated generally planar member having a general hour-glass shape periphery including a pair of concave, side sections interconnecting respective ones of a pair of convex end sections. The pad basically comprises a top-sheet, a fluid absorbent core, and a cover sheet. The top sheet is formed of a fluid pervious material, e.g., a non-woven material, and is disposed over the absorbent core. The absorbent core comprises a fluid absorbing material, e.g., cellulosic fluff and super-absorbent particles, and is disposed over the cover sheet. The cover sheet is formed of a fluid impervious material, e.g., a plastic film. The top-sheet, the fluid absorbent core and the cover sheet are bonded, e.g., thermally bonded, together along plural concentric lines located adjacent the periphery of the pad. The plural concentric lines form a barrier resistant to the egress of fluid out of the periphery of the pad.Type: GrantFiled: July 24, 2000Date of Patent: January 14, 2003Assignee: Tyco Healthcare Retail Services AGInventor: Ruth Levy
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Patent number: 6506962Abstract: The invention describes new acquired resistance genes in plants. A method of using the genes to make transgenic plants that are resistant to disease is also provided.Type: GrantFiled: May 12, 2000Date of Patent: January 14, 2003Assignee: Monsanto Technology LLCInventors: Oleg V. Bougri, Caius M. T. Rommens, Neelam Srivastava, Kathleen M. M. Swords
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Patent number: 6506963Abstract: This invention relates to transgenic winter oilseed rape (WOSR) plants, plant material and seeds, characterized by harboring a specific transformation event. It pertains to winter oilseed rape plants, more particularly to a pair of winter oilseed rape plants, which is particularly suited for the production of hybrid seed. More specifically, one plant is characterized by being male-sterile, due to the presence in its genome of a male sterility gene. The invention further provides a method for producing hybrid seed, a process for producing a transgenic WOSR plant oil or plant, and a method to identify a transgenic plant, cell or tissue. A kit for identifying the transgenic plants comparing the elite event of the present invention is also described. The WOSR plants of the invention combine the ability to form hybrid seeds with optimal agronomic performance, generic stability and adaptability to different generic backgrounds.Type: GrantFiled: December 8, 1999Date of Patent: January 14, 2003Assignee: Plant Genetic Systems, N.V.Inventors: Greta De Both, Marc De Beuckeleer
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Patent number: 6506964Abstract: An inbred maize line, designated RPK7250, the plants and seeds of inbred maize line RPK7250, methods for producing a maize plant, either inbred or hybrid, produced by crossing the inbred maize line RPK7250 with itself or with another maize plant, and hybrid maize seeds and plants produced by crossing the inbred line RPK7250 with another maize line or plant.Type: GrantFiled: February 4, 2000Date of Patent: January 14, 2003Assignee: Rustica Prograin GenetiqueInventor: Pierre Carolo
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Patent number: 6506965Abstract: An inbred maize line, designated RPK7346, the plants and seeds of inbred maize line RPK7346, methods for producing a maize plant, either inbred or hybrid, produced by crossing the inbred maize line RPK7346 with itself or with another maize plant, and hybrid maize seeds and plants produced by crossing the inbred line RPK7346 with another maize line or plant.Type: GrantFiled: February 4, 2000Date of Patent: January 14, 2003Assignee: Rustica Prograin GenetiqueInventor: Pierre Carolo