Processes Patents (Class 536/124)
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Patent number: 7955438Abstract: The current invention relates to a continuous process for preparing heat an alkali stable polyol composition. Alkali is added to the feed of the anion exchange resin and is allowing running the resin battery in full service mode.Type: GrantFiled: November 28, 2006Date of Patent: June 7, 2011Assignee: Cargill, IncorporatedInventors: Robert Henri-Marcel Stouffs, Simonetta Zerbinati
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Publication number: 20110130561Abstract: A method for obtaining a saccharide by lysing cellulose which is substance that is not readily lysed. Cellulose is mixed in acidic electrolyzed water, and the resulting mixture is stirred at a maximum temperature of 210° C. and at saturation vapor pressure of 1.9 MPa to obtain a saccharide.Type: ApplicationFiled: November 12, 2010Publication date: June 2, 2011Applicant: HONDA MOTOR CO., LTD.Inventor: Kohichi MIYASHITA
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Patent number: 7951530Abstract: An object of the present invention is to provide an option of non-reducing saccharide by providing a novel non-reducing saccharide composed of glucose as constituents and to provide a novel enzyme forming the non-reducing saccharide, a method and process for producing the same, a DNA encoding the enzyme, a recombinant DNA and transformant comprising the DNA, a composition comprising the non-reducing saccharide, and uses thereof. The present invention solves the above object by providing a novel cyclic saccharide having a structure of cyclo{>6)-?-D-glucopyranosyl-(1>4)-?-D-glucopyranosyl-(1>6)-?-D-glucopyranosyl-(1>4)-?-D-glucopyranosyl-(1>}, cyclic maltosylmaltose, novel cyclic maltosylmaltose-forming enzyme, a method and process for producing the same, a DNA encoding the enzyme, a recombinant DNA and transformant comprising the DNA, a composition comprising the cyclic maltosylmaltose or a saccharide composition comprising the same, and uses thereof.Type: GrantFiled: November 16, 2007Date of Patent: May 31, 2011Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Kazuhisa Mukai, Hikaru Watanabe, Tomoyuki Nishimoto, Michio Kubota, Shigeharu Fukuda, Toshio Miyake
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Patent number: 7951936Abstract: A process for producing a polysaccharide sponge comprises the steps of (A) freezing a photoreactive polysaccharide solution, and (B) irradiating the frozen photoreactive polysaccharide solution with light to crosslink the photoreactive polysaccharide, thereby obtaining the polysaccharide sponge. The process includes simplified steps requiring no removal of solvent, and has such an advantage that impurities are easily removed therefrom.Type: GrantFiled: October 29, 2007Date of Patent: May 31, 2011Assignee: Seikagaku CorporationInventor: Tomoya Sato
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Patent number: 7943765Abstract: The production of polysaccharide networks, especially starch networks, having a high network density, high solidity, a low swelling degree, and exhibiting reduced water absorption and to the uses thereof, especially, in the field of biodegradable plastics.Type: GrantFiled: October 21, 2002Date of Patent: May 17, 2011Assignee: Innogel AGInventors: Rolf Müller, Federico Innerebner, Paul Smith, Theo A. Tervoort
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Patent number: 7943594Abstract: One aspect of the present invention relates to solution-phase approaches to GPI synthesis. Another aspect of the present invention relates to key building blocks, and syntheses thereof, useful for GPI assembly. Yet another aspect of the invention relates to an automated method for the synthesis of GPIs and fragments thereof.Type: GrantFiled: July 10, 2003Date of Patent: May 17, 2011Assignee: Massachusetts Institute of TechnologyInventors: Peter H. Seeberger, Michael C. Hewitt, Daniel A. Snyder
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Patent number: 7939502Abstract: The invention provides a tobramycin formulation for delivery by aerosolization in the form of additive-free, isotonic solution whose pH has been optimised to ensure adequate shelf-life at room temperature. Said formulation can be advantageously used for the treatment and prophylaxis of acute and chronic endobronchial infections, in particular those caused by the bacterium Pseudomonas aeruginosa associated to lung diseases such as cystic fibrosis.Type: GrantFiled: December 18, 2009Date of Patent: May 10, 2011Assignee: Chiesi Farmaceutici S.p.A.Inventors: Chiara Malvolti, Raffaella Garzia
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Patent number: 7939512Abstract: The present invention is directed to a multistep process for the physical depolymerization of heparin wherein heparin is subjected to at least two ?-ray irradiations and wherein between two irradiation steps the depolymerised heparin is subjected to a separation step and only a fraction of the depolymerised heparin obtained from the first irradiation is subjected to the second irradiation step. It is also directed to heparin-derived oligosaccharide fractions obtainable by the process of the invention.Type: GrantFiled: April 13, 2006Date of Patent: May 10, 2011Assignee: Laboratori Derivati Organici SpAInventors: Luigi De Ambrosi, Sergio Gonella, Donata Bensi, Giangiacomo Torri, Antonella Bisio, Elena Vismara
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Publication number: 20110097735Abstract: The present invention relates to fluorescent pyrene dyes in general. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and/or treatment of disease conditions.Type: ApplicationFiled: October 28, 2009Publication date: April 28, 2011Applicant: Biotium, Inc.Inventors: Fei Mao, Wai-Yee Leung, Ching-Ying Cheung
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Patent number: 7932380Abstract: A process for the preparation of a sucralose which comprises the steps of: reacting a sucrose with a chlorinating reagent in a non-proton type polar solvent to form chlorinated sucrose (4,6,1?,6?-tertchloro-4,6,1?,6?-tertdeoxylgalactosucrose); reacting the chlorinated sucrose and a carboxylate salt to form sucralose-6-acetate in a dissolvent; and finally de-acylating the sucralose-6-acetate in sodium methoxide/methanol system and then the desired product sucralose is thereby produced. The present invention is generally related to the industrial production of sucralose with the advantages of mild reaction conditions, high yield rate, and brief operation.Type: GrantFiled: March 6, 2008Date of Patent: April 26, 2011Assignee: Wanhe International (Group) Co. Ltd.Inventor: Xiangyang Hao
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Patent number: 7932378Abstract: A process for manufacturing transglycosylation products. According to the process, a starch derivative is reacted at acidic conditions with an alkanol containing 1-6 hydroxyl groups and the reaction product is recovered as such or it is subjected to further processing. According to the method, the transglycosylation reaction between the starch derivatives and the alkanol is carried out in a reactive extrusion process, whereby the reaction can essentially be performed in the absence of liquid media at high yield. The invention also relates to new transglycosylation products of starch derivative, containing anions derived from a phosphorus-containing acid, which are chemically bonded to the product.Type: GrantFiled: October 24, 2003Date of Patent: April 26, 2011Assignee: Valtion Teknillinen TutkimuskeskusInventors: Hannu Mikkonen, Kyösti Valta, Eino Sivonen, Soili Peltonen
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Patent number: 7932379Abstract: Method for the production of C-aryl glucoside SGLT2 inhibitors useful for the treatment of diabetes and related diseases. and intermediates thereof. The C-aryl glucosides may be complexed with amino acid complex forming reagents.Type: GrantFiled: June 19, 2007Date of Patent: April 26, 2011Assignee: Bristol-Myers Squibb CompanyInventors: Prashant P. Deshpande, Bruce A. Ellsworth, Janak Singh, Theodor W. Denzel, Chiajen Lai, Gerard Crispino, Michael E. Randazzo, Jack Z. Gougoutas
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Patent number: 7923552Abstract: The invention provides a high throughput, high purity, high yield system and method of isolating and purifying rebaudioside A (“Reb A”), with acceptable water solubility for all commercial uses, from commercially available Stevia rebaudiana starting material. The invention also provides a means of maximizing yields of 99+% purity Reb A based on the attributes of a given batch of Stevia starting material. The Reb A produced by the invention is water soluble, devoid of bitterness heretofore associated with rebaudioside sweeteners, non-caloric, and suitable for use as a reagent and as an ingredient in orally consumed products, e.g., as a sweetener, flavor enhancer, and flavor modifier.Type: GrantFiled: October 17, 2005Date of Patent: April 12, 2011Assignee: SGF Holdings, LLCInventors: Mel Clinton Jackson, Gordon James Francis, Robert Gordon Chase
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Publication number: 20110082291Abstract: The invention relates to a method for hydrolyzing a plant fiber material to produce and separate a saccharide including glucose. The method includes a hydrolysis process of using a cluster acid catalyst in a pseudo-molten state to hydrolyze cellulose contained in the plant fiber material, and produce glucose. The cluster acid catalyst is subjected to a clustering enhancing treatment by which clustering of the cluster acid catalyst in a crystalline state is enhanced.Type: ApplicationFiled: June 2, 2009Publication date: April 7, 2011Inventors: Shinichi Takeshima, Takeshi Kikuchi
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Patent number: 7919598Abstract: The present invention relates to physical crystal structures of a compound of the formula I: wherein R1, R2, R2a, R3 and R4 are as defined herein, especially pharmaceutical compositions containing structures of compound I or II, processes for preparing same, intermediates used in preparing same, and methods of treating diseases such as diabetes using such structures.Type: GrantFiled: June 20, 2007Date of Patent: April 5, 2011Assignee: Bristol-Myers Squibb CompanyInventors: Jack Z. Gougoutas, Hildegard Lobinger, Srividya Ramakrishnan, Prashant P. Deshpande, Jeffrey T. Bien, Chiajen Lai, Chenchi Wang, Peter Riebel, John Anthony Grosso, Alexandra A. Nirschl, Janak Singh, John D. DiMarco
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Patent number: 7910727Abstract: A process for preparing sucrose-6-ester is provided, which comprises electrolyzing an electrolyte solution containing sucrose, an acylating reagent and a halide catalyst. Also disclosed is a process for preparing sucralose, which involves the preparation and chlorination of sucrose-6-ester followed by deacylation of the molecule. The process of the invention can be more readily performed with a higher yield than those in the art.Type: GrantFiled: July 17, 2006Date of Patent: March 22, 2011Assignee: Techno (Guangzhou) Food Ingredients Co., Ltd.Inventors: Shaoxiong Li, Ziang Chen, Patrick Deng
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Patent number: 7906487Abstract: A method of utilizing the physiological activity of a rare saccharide, wherein physiological-activity sensitive cells are treated with the rare saccharide to modify the function of the cells. A composition containing, as an active ingredient, a rare saccharide which is introduced into physiological-activity sensitive cells and has an effect of modifying the function of the cells. The cells are human cells. The composition is a functional food, a drug, or a cosmetic. The rare saccharide is a rare saccharide belonging to aldose and/or ketose. The aldose is D-allose, and the cells are selected from the group consisting of cancer-cell proliferation inhibitory activity sensitive cells and active-oxygen production inhibitory activity sensitive cells. The ketose is D-psicose, and the cells are selected from the group consisting of chemokine secretion inhibitory activity sensitive cells, microglia migration inhibitory activity sensitive cells, and hypoglycemic activity sensitive cells.Type: GrantFiled: May 22, 2003Date of Patent: March 15, 2011Assignees: Fushimi Pharmaceutical Co., Ltd., Teikoku Seiyaku Co., Ltd., National University Corporation Kagawa University, Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Ken Izumori, Masaaki Tokuda, Toshifumi Itano, Osamu Miyamoto, Toshihiko Ishida, Koji Murao, Taizo Tasaka, Gan Muneuchi, Fuminori Yamaguchi, Terukazu Tanaka, Masaaki Ueki, Kazuyuki Hirooka, Tomohiko Taminato, Mohammad Akram Hossain, Keiji Tsusaki, Takeo Takahashi, Mitsuhiro Nagata, Yutaka Ishida
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Publication number: 20110053868Abstract: Disclosed is L-glucose monohydrate and compositions thereof. Also disclosed are methods for making L-glucose monohydrate and compositions thereof. Further disclosed are methods for colonic cleansing using L-sugars, such as L-glucose monohydrate, and compositions and kits useful for colonic cleansing.Type: ApplicationFiled: June 3, 2010Publication date: March 3, 2011Applicant: Axcan Pharma, Inc.Inventors: Edward DELANEY, Mohammad Rahman, Michael Caswell
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Publication number: 20110046364Abstract: The present invention relates to a method of labeling a sugar chain, used for labeling a sugar chain contained in a biological sample, aimed at simplifying a process of isolating a sugar chain from a biological sample and labeling it, which includes (a) trapping a sugar chain in a sugar-trapping substance, which is a substance for specifically trapping a sugar chain from a biological sample; (b) washing the sugar-trapping substance having the sugar chains trapped thereon; (c) releasing the sugar chain from the sugar-trapping substance; and (d) labeling the released sugar chain, wherein the processes (a), (b), (c) and (d) are conducted sequentially in a single reaction vessel.Type: ApplicationFiled: April 28, 2009Publication date: February 24, 2011Inventors: Midori Abe, Hideyuki Shimaoka, Hiromitsu Kuramoto
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Patent number: 7893253Abstract: The invention relates to methods of manipulating immobilised carbohydrates by derivatisation. Depending on the nature of the derivatisation, the carbohydrate may thereby be more easily detected and/or identified or handled. In particular, the invention relates to methods of preparing a reactive sugar comprising the steps of: i) providing a sample comprising a reducing sugar; ii) providing a solid support covalently attached to a linker comprising a capture group comprising an —NH2 group, wherein said linker optionally is attached to said solid support via a spacer; iii) reacting said reducing sugar with said —NH2 group, thereby obtaining an immobilised sugar; iv) reacting free —NH2 groups with a capping agent, wherein the capping agent comprises a reactive group capable of reacting with an —NH2 group; and v) reducing C?N bonds with a reducing agent, thereby obtaining an reactive sugar of the structure SugarCHn-NH— linked to a solid support via a linker and optionally a spacer, wherein n is 1 or 2.Type: GrantFiled: February 8, 2006Date of Patent: February 22, 2011Assignee: Merck Patent GmbHInventors: Anders Lohse, Malene Ryborg Jørgensen, Rita Martins, Ole Hindsgaul
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Patent number: 7893225Abstract: A process for producing a polysaccharide sponge comprises the steps of (A) freezing a photoreactive polysaccharide solution, and (B) irradiating the frozen photoreactive polysaccharide solution with light to crosslink the photoreactive polysaccharide, thereby obtaining the polysaccharide sponge. The process includes simplified steps requiring no removal of solvent, and has such an advantage that impurities are easily removed therefrom.Type: GrantFiled: January 30, 2002Date of Patent: February 22, 2011Assignee: Seikagaku CorporationInventor: Tomoya Sato
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Patent number: 7893038Abstract: An oral, immunostimulating material for mammals, birds, and reptiles comprising an immunostimulating amount of an alginate having a M content of at least 40% and an acceptable carriers.Type: GrantFiled: November 29, 2002Date of Patent: February 22, 2011Assignee: FMC Biopolymer ASInventors: Olav Gåserød, Arne Dessen
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Publication number: 20110039309Abstract: A process is described for producing fermentable sugars derivable from biomass that contains polysaccharide, such as cellulose, made increasingly accessible as a substrate for enzymatic degradation or other methods of depolymerization. These fermentable sugars are subsequently able to be fermented to produce various target chemicals, such as alcohols, aldehydes, ketones or acids.Type: ApplicationFiled: February 3, 2010Publication date: February 17, 2011Applicant: HERCULES INCORPORATEDInventors: Herbert T. CONNER, Patrick J. COWAN, John C. GAST
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Patent number: 7888500Abstract: “Locked-ring” C-glycoside derivatives may be prepared wherein the ring of the sugar molecule remains intact without the need for any protecting groups. These C-glycoside derivatives may be produced by first reacting an aldose reducing sugar, which may be a hexose or a pentose, with a ?-diketone to form a C-glycoside ketone. The C-glycoside ketone is then reacted with a ketone reactive compound, such as a hydrazine or hydroxylamine, optionally linked to a detectable label, to form a C-glycoside derivative wherein the ketone reactive compound is conjugated to the C-glycoside at the site of the ketone. The aldose reducing sugar used in the first reaction may a simple pentose or hexose monosaccharide, or it may be optionally substituted.Type: GrantFiled: September 5, 2007Date of Patent: February 15, 2011Assignee: The United States of America, as represented by the Secretary of AgricultureInventor: Neil P. Price
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Patent number: 7887838Abstract: A film-forming composition comprising a hydrocolloid, a plasticizer, and water is described. A process and apparatus for producing a non-gelatin film comprising a hydrocolloid, a plasticizer, and water is also disclosed. The process includes combining at least one non-gelatin hydrocolloid, water, and at least one plasticizer into a substantially homogeneous film-forming composition comprising at least about 40 percent water by weight. A substantial portion of the water is then extracted from the film-forming composition to form a dried portion having a water content of less than or equal to about 25 percent by weight. The dried portion of the film-forming composition is formed into a film. A film produced according to the process preferably has a tensile strength at rupture of at least about 0.4 N/mn2, and a percent elongation of at least about 50 percent at rupture at room temperature.Type: GrantFiled: June 30, 2003Date of Patent: February 15, 2011Assignee: Banner Pharmacaps, Inc.Inventors: Don A. Archibald, Qi Fang, Linus G. Fonkwe, Gregory L. Dietel, Charles S. Casault
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Patent number: 7883873Abstract: The present invention provides a sugar chain synthesizer capable of continuously reacting sugar chains when a plurality of sugar chains are successively reacted. The sugar chain synthesizer of the present invention includes a plurality of vessels containing respective sugar nucleotide solutions, a plurality of vessels containing respective glycosyltransferases, and a reactor containing a primer that is a water-soluble polymer, into which the above described sugar nucleotide solution and glycosyltransferase are introduced. In the present invention, components in a reaction solution obtained in the reactor are separated through an ultrafiltration column, and a reaction product is then returned to the above described reactor, so as to continuously synthesize sugar chains. Although it is a complicated synthesis of sugar chains, it becomes possible to carry out such synthesis continuously and automatically.Type: GrantFiled: February 18, 2005Date of Patent: February 8, 2011Assignee: Hitachi High-Technologies CorporationInventors: Masanori Takaki, Kuriko Yamada, Kisaburo Deguchi, Hiroaki Nakagawa, Shinichiro Nishimura
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Patent number: 7884087Abstract: An amide of hyaluronic acid or a derivative thereof which comprises at least one repetitive unit of general formula (I): wherein R?NR6R7, or alcoholic group of the aliphatic, aromatic, arylaliphatic, cycloaliphatic, heterocyclic series, OH, O—, alcoholic group of hyaluronic acid, amino group of deacylated hyaluronic acid; R1, R2, R3, R4?H, SO3—, acyl group derived from a carboxylic acid of the aliphatic, aromatic, arylaliphatic, cycloaliphatic, heterocyclic series, —CO—(CH2)2—COOY; Y? negative charge, or H; R5?—CO—CH3, H, SO3—, acyl group derived from a carboxylic acid of the aliphatic, aromatic, arylaliphatic, cycloaliphatic, heterocyclic series, acylic group of hyaluronic acid; R6? is H or a aliphatic, aromatic, arylaliphatic, cycloaliphatic, or heterocyclic group, substituted or unsubstituted; R7? is H or an aliphatic, aromatic, arylaliphatic, cycloaliphatic, or heterocyclic group, substituted or unsubstituted; wherein at least one of R or R5 forms an amide group.Type: GrantFiled: July 6, 1999Date of Patent: February 8, 2011Assignee: Fidia Farmaceutici S.p.A.Inventors: Davide Bellini, Alessandra Topai
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Publication number: 20110028710Abstract: There is provided a process for the recovery of HCI from a dilute solution thereof, comprising bringing a dilute aqueous HCI solution into contact with a substantially water-immiscible extractant, the extractant comprising an oil soluble amine, which amine is substantially water insoluble both in free and in salt form; an oil soluble weak organic acid having a pKa above 3, which acid is substantially water insoluble both in free and in salt form; and a solvent for the amine and organic acid; whereupon HCI selectively transfers to the extractant to form an HCI-carrying extractant, and treating the HCI-carrying extractant to obtain gaseous HCI. Also provided is the extractant composition.Type: ApplicationFiled: April 7, 2009Publication date: February 3, 2011Applicant: HCL CLEANTECH LTD.Inventors: Avram Baniel, Aharon Eyal
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Patent number: 7879994Abstract: This invention provides cellulose ester interpolymers, and methods of oxidizing cellulose interpolymers and cellulose ester interpolymers. The invention also provides routes to access carboxylated cellulose ester derivatives with high acid numbers wherein the carboxyl group is attached directly to the cellulose backbone by a carbon-carbon bond. Through functionalization of an intermediate aldehyde, the corresponding cationic or zwitterionic cellulose ester derivatives can also be accessed. The interpolymers of the present invention have a number of end-use applications, for example, as binder resins in various types of coating compositions and as drug delivery agents.Type: GrantFiled: November 23, 2004Date of Patent: February 1, 2011Assignee: Eastman Chemical CompanyInventors: Charles Michael Buchanan, Norma Lindsey Buchanan, Susan Northrop Carty, Chung-Ming Kuo, Juanelle Little Lambert, Jessica Dee Posey-Dowty, Thelma Lee Watterson, Matthew Davie Wood, Michael Orlando Malcolm, Margaretha Soderqvist Lindblad
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Publication number: 20110015385Abstract: Esterification of a carbohydrate using an acylating agent can effectively be performed using a process comprising: (a) combining the carbohydrate with the acylating agent, (b) adjusting the moisture content of the combination below 40 wt. %, and (c) subjecting the combination to superheated steam. The carbohydrate is especially starch and the acylating agent is in particular an acid, such as an organic acid, amino acid, or diacid.Type: ApplicationFiled: November 21, 2008Publication date: January 20, 2011Inventors: Johannes Wilhelmus Timmermans, Jan Matthijs Jetten, Theodoor Maximiliaan Slaghek, Ingrid Karin Haaksman
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Publication number: 20110015387Abstract: A process for the depolymerization of cellulose, in which a solution of cellulose in an ionic liquid is brought into contact with a solid acid as catalyst, is claimed. The cellulose can be depolymerized within a short reaction time to form a low molecular weight or oligomeric reaction mixture having a narrow molecular weight distribution (low polydispersity, d, defined as ratio of Pw to Pn).Type: ApplicationFiled: March 16, 2009Publication date: January 20, 2011Applicant: STUDIENGESELLSCHAFT KOHLE MBHInventors: Ferdi Schuth, Roberto Rinaldi, Regina Palkovitz
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Publication number: 20110009614Abstract: Processes and reactor systems are provided for the conversion of sugars to sugar alcohols using a hydrogenation catalyst, which includes apparatus and method for in-line regeneration of the hydrogenation catalyst to remove carbonaceous deposits.Type: ApplicationFiled: June 30, 2010Publication date: January 13, 2011Inventors: Paul George Blommel, Elizabeth M. Woods, Michael J. Werner, Aaron James Imrie, Randy D. Cortright
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Patent number: 7868167Abstract: The production of a diutan polysaccharide exhibiting increased viscosity properties as compared with previously produced polysaccharide of the same type of repeating units. Such an improved diutan polysaccharide is produced through the generation of a derivative of Sphingomonas sp. ATCC 53159 that harbors a multicopy broad-host-range plasmid into which genes for biosynthesis of diutan polysaccharide have been cloned. The plasmid provides the capability within the host Sphingomonas strain to produce multiple copies of genes for such polysaccharide synthesis. In such a manner, a method of not just increased production of the target diutan polysaccharide, but also production of a diutan polysaccharide of improved physical properties (of the aforementioned higher viscosity) thereof is provided. Such a diutan polysaccharide has proven particularly useful as a possible viscosifier in oilfield applications and within cement materials.Type: GrantFiled: November 1, 2005Date of Patent: January 11, 2011Assignee: CP Kelco U.S., Inc.Inventors: Nancy E. Harding, Yamini N. Patel, Russell Coleman, Steven Matzke
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Patent number: 7868164Abstract: A cellulose ether which has from 4,000 to 10,000 anhydroglucose repeat units and is substituted with (a) on the average from 0.0003 to 0.08 moles, per mole of anhydroglucose unit, of a substituent comprising an alkyl or arylalkyl group having from 8 to 24 carbon atoms and (b) a substituent having the formula II wherein R5, R6 and R7 each independently are —CH3 or —C2H5, R8 is —CH2—CHOH—CH2— or —CH2CH2, Az? is an anion, and z is 1, 2 or 3 is useful in hair and skin care compositions.Type: GrantFiled: May 27, 2004Date of Patent: January 11, 2011Inventors: Russell L. Kreeger, Shuiqin Zhou
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Patent number: 7868166Abstract: A process is described for the continuous preparation and/or workup of polysaccharide derivatives by reaction and/or conditioning in a suspension with liquid reaction partners, in which, in accordance with FIG. 1, a) a preferably pumpable suspension stream of solids SE and liquid phase LE, if appropriate preheated to 185° C.Type: GrantFiled: May 2, 2003Date of Patent: January 11, 2011Inventors: Volker Eckhardt, Martin Lohrie, Bernd Schriewer, Holger Tanneberger
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Publication number: 20110003983Abstract: A new sucrose is obtained through the present invention. The new sucrose has a lower solubility and a lower melting point. Thus, the new sucrose has a higher stability. The new sucrose obtained through the present invention can be used as an added functionality excipient of drug in pharmaceutical industry. And the new sucrose can also be used in sugar and food industries.Type: ApplicationFiled: January 23, 2008Publication date: January 6, 2011Applicant: National Central UniversityInventors: Tu Lee, Yu-Sheng Lin
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Patent number: 7862744Abstract: The present invention provides a method for preparing DMF for sucralose production, including, e.g., isolating DMF from a composition comprising DMF, water, and methanol, using a single-tower rectification system. In various embodiments of the present invention, the composition, after the removal of water and methanol, may be further dried/dehydrated, such as, by using a dehydration agent and/or filtration. The resulting substantially pure DMF may comprise at least about 98-99% DMF. The present invention further provides a method of preparing a composition comprising anhydrous sucrose for sucralose production, which may comprise mixing regular sucrose with a water-containing DMF composition, and drying the resulting sucrose-DMF composition. Also provided is a single-tower separation system for isolating DMF from a composition comprising DMF, water, and methanol.Type: GrantFiled: July 23, 2008Date of Patent: January 4, 2011Assignee: Mamtek International LimitedInventors: David Losan Ho, Zhenghao Wan
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Publication number: 20100330671Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.Type: ApplicationFiled: August 20, 2010Publication date: December 30, 2010Applicants: Postech Foundation, Postech Academy-Industry FoundationInventors: Sung-Kee CHUNG, Kaustabh Kumar Maiti, Woo Sirl Lee, Ock-Youm Jeon, Seok-Ho Lee
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Patent number: 7858775Abstract: This invention relates to a process for preparing 2?-deoxynucleoside compounds or 2?-deoxynucleoside precursors using 2-dehydro-3-deoxy-D-gluconic acid (usually abbreviated as KDG) or its salts as a starting material. A variety of 2?-deoxynucleosides and their analogues are used as a starting material for synthesis or drug formulation in production of an antiviral, anticancer or antisense agent.Type: GrantFiled: June 24, 2004Date of Patent: December 28, 2010Assignees: Rhodia Chimie, Evologic S.A., Marliere Technologies Societe CivileInventors: Volker Dóring, Denis Thibaut, Annett Kreimeyer, Philippe Marliere
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Publication number: 20100317846Abstract: A process for the production of polysaccharide (20) from disaccharide (10) and saccharide (21), wherein R1 to R10 are each independently the same or different protecting groups; R is an optionally substituted aryl group or an optionally substituted saturated or unsaturated alkyl group; X is selected from the group consisting of hydrogen, alkyl and amino; Y is selected from the group consisting of a protecting group and one or more saccharide residues; and n is a positive integer; and further wherein said process comprises removal of the R7 protecting group and reaction of the deprotected C4-oxygen atom of compound (21) with the C1-carbon atom of the 1-ido moiety of compound (10).Type: ApplicationFiled: February 4, 2009Publication date: December 16, 2010Applicant: THE UNIVERSITY OF MANCHESTERInventors: Steen Uldall Hansen, Gordon Jayson, John Gardiner, Marek Barath
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Patent number: 7851618Abstract: An aminated complex-type oligosaccharide derivative of the formula (1) wherein R1 is H—(CO)—CH2X, —NH—(CO)—(CH2)b—CH2X, isothiocyanate group, —NH—(CO)a—(CH2)b—CO2H or —NH—(CO)a—(CH2)b—CHO, X being a halogen atom, a being 0 or 1, b being an integer of 1 to 4, R2 and R3 are a hydrogen atom or a group of the formulae (2) to (5) and may be the same or different, except for the case where both R2 and R3 are hydrogen or the formula (5), and the case where one of R2 and R3 is a hydrogen atom, with the formula (5) serving as the other thereof.Type: GrantFiled: July 27, 2004Date of Patent: December 14, 2010Assignee: Otsuka Chemical Co., Ltd.Inventors: Yasuhiro Kajihara, Kazuhiro Fukae
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Patent number: 7847074Abstract: The present invention relates to processes for preparing the compounds of general formula I, wherein the groups R1, R2 and R3 are defined according to claim 1 and to intermediates of said processes.Type: GrantFiled: September 14, 2006Date of Patent: December 7, 2010Assignee: Boehringer Ingelheim International GmbHInventors: Matthias Eckhardt, Frank Himmelsbach
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Patent number: 7838641Abstract: The present invention concerns a process for the production of alginate having a mannuronic acid-content of at least 80 mole %, wherein said alginate is produced by: a) adding algae or seaweed to water under stirring, in a ratio of 1:3 to 1:20 respectively, at a pH above about 2.3, while maintaining a temperature above 20° C. for at least 30 minutes, and b) separating said alginate from the solid material of the suspension in a) by a standard separation method such as filtration, and optionallyc) recovering said alginate from the solution.Type: GrantFiled: November 21, 2002Date of Patent: November 23, 2010Assignee: FMC Biopolymer ASInventor: Finn Hjelland
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Patent number: 7838667Abstract: A method of grafting galactomannan-type polysaccharide polymers, preferably guar, to a functional group by irradiation with high energy electron beams in the presence of an unsaturated monomer-compressing the described functional group. The method may include the depolymerization of the grafted polymer to a pre-selected low molecular weight. The preferred galactomannans for treatment according to this method are guar gum, guar splits and hydroxypropyl guar. In a preferred embodiment the guar gum is also depolymerized, preferably to a molecular weight of below about 700,000 Daltons, and most preferably to a molecular weight of between about 100,000 Daltons to about 250,000 Daltons. The depolymerized guar most preferably has a polydispersity of less than about 3.0 and is useful in oil well fracturing to enhance oil production.Type: GrantFiled: June 25, 2003Date of Patent: November 23, 2010Assignee: Rhodia, Inc.Inventors: Leo Zhaoqing Liu, Christian Priou
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Patent number: 7829697Abstract: The invention relates to mutant strains of the genus Sphingomonas which have a mutation in at least one gene encoding a protein involved in polyhydroxybutyrate (“PHB”) synthesis that allows the mutant strains to produce PHB-deficient sphingans. The invention is also directed to a process for preparing a clarified sphingan solution comprising heating aqueous sphingan solution, in particular PHB-deficient sphingan solution, to a clarification temperature of about 30° C. to about 70° C., and treating the solution with a clarification agent and enzymes. In addition, the invention is directed to a food or industrial product comprising a PHB-deficient and/or clarified sphingan. One particular embodiment of the invention is directed to a clarified, PHB-deficient high-acyl gellan and the processes of making thereof.Type: GrantFiled: December 2, 2005Date of Patent: November 9, 2010Assignee: CP Kelco US, Inc.Inventors: Stan Bower, Ellen Burke, Nancy E. Harding, Yamini N. Patel, J. Carrie Schneider, Dagmar Meissner, Neil A. Morrison, Ralph Bezanson
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Patent number: 7829735Abstract: Reagents useful for attaching biomolecules (e.g., proteins, oligonucleotides, and other biomolecules) to a surface, processes of attaching molecules to a surface to form modified surfaces using these reagents, and methods of detecting a target compound using these modified surfaces are disclosed.Type: GrantFiled: October 27, 2008Date of Patent: November 9, 2010Assignee: Northwestern UniversityInventors: Chad A. Mirkin, Robert Elghanian
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Patent number: 7825240Abstract: There are described novel cross-linked polymers based on bis-silane, bis-thioether, bis-sulphoxide, bis-sulphone and butane-di-yl derivatives of polysaccharides and oligosaccharides, their shaping as support materials useful for the separation or preparation of enantiomers; a process for preparing the said cross-linked polymer compounds, a process for preparing balls of support materials containing the said cross-linked polymer compounds; a method of obtaining balls of support materials useful in chromatography or in organic synthesis; and the use of the said support materials containing the cross-linked polymer compounds in separation or in preparation of enantiomers, through employment in chromatography or organic synthesis processes in a heterogeneous medium; and the use of the said cross-linked polymer compounds in the form of membranes in processes using percolation through membranes for the separation or the preparation of enantiomers.Type: GrantFiled: October 29, 2003Date of Patent: November 2, 2010Assignee: Eka Chemicals ABInventor: Raphaël Duval
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Publication number: 20100267999Abstract: A method for producing a microbial growth stimulant (MGS) from a plant biomass is described. In one embodiment, an ammonium hydroxide solution is used to extract a solution of proteins and ammonia from the biomass. Some of the proteins and ammonia are separated from the extracted solution to provide the MGS solution. The removed ammonia can be recycled and the proteins are useful as animal feeds. In one embodiment, the method comprises extracting solubles from pretreated lignocellulosic biomass with a cellulase enzyme-producing growth medium (such T. reesei) in the presence of water and an aqueous extract.Type: ApplicationFiled: April 19, 2010Publication date: October 21, 2010Inventors: Ming Woei Lau, Bruce Dale
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Publication number: 20100267942Abstract: This invention relates a cellulose solution comprising cellulose and at least one tetraalkylammonium alkylphosphate and processes to produce the cellulose solution. Another aspect of this invention relates to shaped articles prepared from a cellulose solution comprising cellulose and at least one tetraalkylammonium alkylphosphate. Another embodiment of this invention relates to compositions comprising derivatives of cellulose prepared from a cellulose solution comprising at least one tetraalkylammonium alkylphosphate. Another embodiment of this invention relates to compositions comprising regioselectively substituted cellulose esters prepared from a cellulose solution comprising cellulose and at least one tetraalkylammonium alkylphosphate. In another embodiment of the invention, the cellulose esters of the present invention are used as protective and compensation films for liquid crystalline displays.Type: ApplicationFiled: August 12, 2009Publication date: October 21, 2010Applicant: EASTMAN CHEMICAL COMPANYInventors: Charles Michael Buchanan, Norma Lindsey Buchanan, Elizabeth Guzman-Morales
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Patent number: 7816517Abstract: In one embodiment of the present invention, a first test tube including therein a dehydrated sample containing a sugar chain and a labeling agent solution made of 2-aminopyridine/acetic acid are stored in a well-closed container with the first test tube and the labeling agent solution secluded from each other. The labeling agent solution is heated, and the 2-aminopyridine is evaporated so as to be in contact with the sugar chain, thereby obtaining a pyridylamination sugar chain from the sugar chain. As a result, it is possible to provide the saccharide fluorescence labeling apparatus and the saccharide fluorescence labeling method whereby it is possible to simplify and ensure an operation for reacting saccharide into the pyridylamination sugar chain.Type: GrantFiled: March 7, 2006Date of Patent: October 19, 2010Assignees: National University Coporation Kagawa University, Osaka UniversityInventors: Shin-ichi Nakakita, Sumihiro Hase