Ethers Patents (Class 536/111)
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Patent number: 6600033Abstract: The invention relates to a cellulose ether that is hydrophobically modified with an alkyl or alkenylketene dimer of general formula (I), in which R1 and R2 are alkyl or alkenyl chain, such as one having 5 to 22, preferably 13 to 20, most preferably 14 to 18 carbons. The product can be used in water-based products to control the rheological properties, for example. Objects of use include, for example, detergents, paper coating mixtures, paints, dispersing agents, and oil drilling muds.Type: GrantFiled: June 19, 2000Date of Patent: July 29, 2003Assignee: Metsa Specialty Chemicals OyInventors: Mikko Lähteenmäki, Heidi Känköhen, Göran Kloow, Oliver Ruppert, Jennifer Ann Leupin, Eugene Paul Gosselink
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Publication number: 20030073798Abstract: Disclosed is a method for preparing a hydroxyalkyl starch. In accordance with the disclosed invention, the method comprises reacting the starch with a starch hydroxylating agent in the presence of an alcohol and an alcohol-soluble alkali metal, at a temperature effective to provide a cold water soluble starch, preferably at a temperature of between about 90° and about 110° C. The starch thus produced will be granular and cold water soluble.Type: ApplicationFiled: June 12, 2002Publication date: April 17, 2003Applicant: Grain Processing CorporationInventors: Adrian P. Kightlinger, Richard L. Antrim
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Patent number: 6512108Abstract: A substantially fat impervious coating (KIT number from about 6 and about 16) coating made from an aqueous solution of a hydroxypropyl high amylose pea starch.Type: GrantFiled: February 27, 2001Date of Patent: January 28, 2003Assignee: Gesellschaft fuer Spezialfolien-Entwicklung m.b.H.Inventors: Rotraut Albrecht, Silvio Boettcher, Gernod Haerter, Peter Pawlak, Erich Heinrich Schwartze, Heike Zuleg
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Patent number: 6469120Abstract: The composition formed by mixing an organosilane, optionally having a nonhydrolizable organic group, but having one or more hydrolyzable groups, with a polyol containing at least two hydroxy groups, wherein at least any two of the hydroxy groups are separated by no more than two intervening atoms. Water-stabilized organosilane compounds. A water stable composition made from the polyol and organosilane or compound and water. A method of treating a substrate by mixing or contacting the substrate with the product, compound, or composition of this invention for a period of time sufficient for treatment of the substrate. A treated substrate having adhered thereto the product, compound, or composition of this invention. A method of dyeing and treating a substrate. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A method of antimicrobially coating a latex medical article. A method of making a siloxane in the presence of a stabilizer.Type: GrantFiled: June 9, 2000Date of Patent: October 22, 2002Assignee: BioShield Technologies, Inc.Inventors: Jacques E. Elfersy, Joachim Berkner, Timothy C. Moses
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Patent number: 6368456Abstract: This invention relates to paper comprising aldehyde modified cellulose pulp prepared using nitroxyl radical mediated oxidation and further containing selected additives comprising aldehyde functional polymers or polymers containing functionality capable of reacting with aldehyde groups and having improved strength properties. This invention further relates to paper made from aldehyde modified cellulose pulp where an hydroxyl group containing polymer is added to the paper to provide wet strength properties.Type: GrantFiled: December 3, 1999Date of Patent: April 9, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: A. Levent Cimecioglu, John S. Thomaides, Kraig A. Luczak, Robert D. Rossi
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Publication number: 20010025102Abstract: Stable, cold water soluble, ready for use starch aldehyde compositions and the method of preparation of such compositions wherein an aqueous dispersion of a fluidity or converted starch acetal is hydrolyzed under acidic conditions to form the starch aldehyde which is then spray dried into a cold water soluble starch aldehyde powder.Type: ApplicationFiled: May 9, 2001Publication date: September 27, 2001Inventors: A. Levent Cimecioglu, Bjork Ohlhorst, Daniel B. Solarek, Douglas J. Slete, James L. Eden
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Patent number: 6284140Abstract: The present invention relates to dialysis solutions for peritoneal dialysis, containing hydroxyethyl starch as the osmotically-active substance, electrolytes and, optionally, conventional additives, where the hydroxyethyl starch has a molecular weight Mw in the range from 10,000 to 150,000, a substitution MS in the range from 0.10 to 0.40, a substitution DS in the range from 0.09 to 0.35 and a substitution ratio C2/C6≧8. With this peritoneal dialysis solution it is possible, with an outstanding ultrafiltration, to maintain a longer dwell time, for example the dialysis solution can be utilized for a period of 12 hours in the CAPD without replacement. In addition, the inventive dialysis solution is also particularly advantageous for patients with residual kidney function. The resorption of the osmotically active substance is clearly diminished and even after a dwell time of 12 hours it amounts to a maximum of 60-70%.Type: GrantFiled: March 11, 1997Date of Patent: September 4, 2001Assignee: Fresenius AGInventors: Klaus Sommermeyer, Jutta Passlick-Deetjen
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Publication number: 20010014736Abstract: A method for producing starch solutions of high cation equivalent value with a DS of 0.1-1.0) is provided. The starch to be cationized is slurried to form a suspension of about 10-80% solids content in an aqueous mixture of a cationizing agent. In the cationization chlorohydrin-functional cationizing agent is used by about 90-1100 g per kg starch solids, and a catalyst is added to the slurry. The reaction is carried out at a high solids content of 40-80% in at least two steps, in the first of which a temperature of about 5-40° C. in maintained, and in the second step a temperature of about 70-180° C.Type: ApplicationFiled: December 4, 2000Publication date: August 16, 2001Inventors: Antti Likitalo, Jouko Kaki
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Patent number: 6265570Abstract: Stable, cold water soluble, ready for use starch aldehyde compositions and the method of preparation of such compositions wherein an aqueous dispersion of a converted starch acetal is hydrolyzed under acidic conditions to form the starch aldehyde which is then spray dried into a cold water soluble starch aldehyde powder.Type: GrantFiled: November 5, 1998Date of Patent: July 24, 2001Assignee: National Starch & Chemical Investment Holding CorporationInventors: A. Levent Cimecioglu, Bjork Ohlhorst, Daniel B. Solarek, Douglas J. Slate, James L. Eden
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Patent number: 6184368Abstract: Methods for syntheses of polyvalent carbohydrate molecules by glycosylations of partially protected polysaccharides with a single glycosylating agent or a mixture of glycosylating agents(i.e., a combinatorial library) are disclosed. An alternate method utilizes a glycoside, the aglycon of which carries a halogen which can be under strong alkaline conditions linked with a partially protected polysaccharide by an ether linkage. The product of the latter reaction can be subjected to further glycosylation with a single glycosylating agent or a mixture of such agents (=library). The novel resulting polyvalent carbohydrate molecules may be used as antiinfective agents (antibacterial, antiparasital), both for prevention and treatment of diseases, and as agents either for preventing the formation of, or disrupting, biofilms.Type: GrantFiled: June 28, 1999Date of Patent: February 6, 2001Inventors: Jiri J. Krepinsky, Niculina Lupescu
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Patent number: 6162906Abstract: A composition comprising a dry, clarified, water-soluble, konjac-derived glucomannan substantially free of insoluble impurities, having a nitrogen content of not greater than about 0.25 wt %, which has a turbidity potential as a 1.0% aqueous sol of not greater than about 20 turbidity units, as measured by the Formazin Turbidity Standard, as well as gels thereof; and methods for the preparation of the foregoing.Type: GrantFiled: August 8, 1991Date of Patent: December 19, 2000Assignee: FMC CorporationInventors: Shiroh Ohashi, Gerald J. Shelso, Arthur L. Moirano, deceased, Walter L. Drinkwater
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Patent number: 6150539Abstract: Compounds useful in immunosuppressive and anti-inflammatory treatment are described. The compounds are hydrolyzable triptolide analogs with improved water solubility and generally lower toxicity than the parent compound.Type: GrantFiled: September 2, 1999Date of Patent: November 21, 2000Assignee: Pharmagenesis, Inc.Inventor: John H. Musser
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Patent number: 6150086Abstract: Multiple micro-encapsulations of a high concentration oleophilic substance using heat to set the primary particle renders the composition suitable for the production of free-flowing powders or beadlets. Microencapsulation involves forming an emulsion out of the oleophilic substance and a polymer, and then use heat setting and/or cross-linking the polymer encapsulates the oleophilic composition. This process is then repeated with a second polymer or third polymer, and with or without cross-linked via the same or different mechanism to further protect the oleophilic substance.Type: GrantFiled: November 12, 1999Date of Patent: November 21, 2000Assignee: Roche Vitamins Inc.Inventors: Stasia Boyle, Kuei-Tu Chang
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Patent number: 6146825Abstract: Multiple micro-encapsulations of a high concentration oleophilic substance using heat to set the primary particle renders the composition suitable for the production of free-flowing powders or beadlets. Microencapsulation involves forming an emulsion out of the oleophilic substance and a polymer, and then use heat setting and/or cross-linking the polymer encapsulates the oleophilic composition. This process is then repeated with a second polymer or third polymer, and with or without cross-linked via the same or different mechanism to further protect the oleophilic substance.Type: GrantFiled: November 12, 1999Date of Patent: November 14, 2000Assignee: Roche Vitamins Inc.Inventors: Stasia Boyle, Kuei-Tu Chang
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Patent number: 6143731Abstract: Compositions useful in the treatment of dietary disorders, and as dietary additives to provide a source of fiber and of short chain fatty acids, to reduce the level of serum cholesterol, increase HDL cholesterol levels and as bulking agents in humans and animals, as well as methods of use therefor are described. The compositions and methods are based on whole .beta.-glucans.Type: GrantFiled: July 27, 1999Date of Patent: November 7, 2000Assignee: The Collaborative Group, Ltd.Inventors: Spiros Jamas, D. Davidson Easson, Jr., Bruce R. Bistrian
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Patent number: 6140090Abstract: A method for the labeling of molecules through the reaction of molecules to be labeled with labels at a solid phase (matrix), characterized in that the molecules enter a reaction chamber in which a matrix loaded with a reactive component is provided, and after the coupling has taken place, the labeled molecules leave the reaction chamber through a porous means.Type: GrantFiled: October 1, 1998Date of Patent: October 31, 2000Assignee: Evotec BioSystems AGInventors: Bernd Schierholz, Gunter Bauer, Irmgard Werner, Franz-Josef Meyer-Almes, Oliver Kreuzer
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Patent number: 6140307Abstract: The present invention concerns analogues of mannose-6-phosphate for use in promoting the healing of wounds or fibrotic disorders with reduced scarring, and methods for doing same.Type: GrantFiled: May 29, 1998Date of Patent: October 31, 2000Assignee: The Victoria University of ManchesterInventors: Mark William James Ferguson, Sarah Glenys Moore, Sally Freeman
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Patent number: 6132982Abstract: Disclosed is a method of detecting the presence of a compound of interest (such as an enzyme), or the spatial distribution within a sample of a compound of interest. The method comprises the step of impregnating or coating a suitable base material with a marker substance capable of reacting or interacting with the compound of interest, the marker substance being labeled in a detectable manner (for example fluorescently, radioactively or being colored) and having a substantially different affinity for the base material than the product of the reaction or interaction thereof with the compound of interest.Type: GrantFiled: March 18, 1998Date of Patent: October 17, 2000Assignee: Novo Nordisk A/SInventor: Stephen Charles Fry
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Patent number: 6121430Abstract: New glucose-based surfactants and methods of their synthesis are described. The surfactants are synthesized through the preparation of an intermediate glucose 4,6-cyclic sulfate. The surfactants are economical to prepare and have excellent surface-active properties.Type: GrantFiled: April 23, 1999Date of Patent: September 19, 2000Assignee: University of Iowa Research FoundationInventors: Robert J. Linhardt, Helene G. Bazin
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Patent number: 6120997Abstract: The invention relates to the combination of hydroxyamines with nucleic acid binding motifs to generate molecules and libraries of molecules targeting specific nucleic acid sequences. In particular, a series of libraries are constructed which contain hydroxyamine functionalities that are attached to various template backbones which display varying degrees of molecular recognition to phosphodiesters and varying degrees of sequence specific recognition to nucleic acids.Type: GrantFiled: January 13, 1998Date of Patent: September 19, 2000Assignee: The Scripps Research InstituteInventors: Chi-Huey Wong, Martin Hendrix, Phil Alper, E. Scott Priestley
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Patent number: 6121437Abstract: Novel phosphorus protecting groups, intermediates thereof, and synthetic processes for making the same are disclosed. Oligomeric compounds are prepared through the protection of one or more internucleosidic phosphorus functionalities, preferably followed by oxidation and cleavage of the protecting groups to provide oligonucleotides.Type: GrantFiled: March 16, 1999Date of Patent: September 19, 2000Assignee: Isis Pharmaceuticals, Inc.Inventors: Andrei P. Guzaev, Muthiah Manoharan
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Patent number: 6113918Abstract: Aminoalkyl glucosamine phosphate compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosamine ring and comprise three 3-alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Methods for using the compounds as adjuvants and immunoeffectors are also disclosed.Type: GrantFiled: May 8, 1997Date of Patent: September 5, 2000Assignee: Ribi ImmunoChem Research, Inc.Inventors: David A. Johnson, C. Gregory Sowell
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Patent number: 6087345Abstract: A material inhibiting lipid peroxide-increase containing fructooligosaccharides is described which can conveniently provide at a low cost a food or drink product which exerts an excellent effect of inhibiting an increase in lipid peroxides without largely changing the daily dietary contents. The intake of the material inhibiting lipid peroxide-increase of the present invention can provide an excellent means for preventing various diseases (cancer, arterial sclerosis, etc.) caused by the formation of lipid peroxides, retarding aging, etc. Moreover, use of the material inhibiting lipid peroxide-increase of the present invention makes it possible to conveniently provide foods and drinks having excellent effects of inhibiting an increase in lipid peroxides at a low cost.Type: GrantFiled: January 19, 1999Date of Patent: July 11, 2000Assignee: Meiji Seika Kaisha, Ltd.Inventors: Atsutane Ohta, Masako Otsuki, Toshio Takizawa, Takashi Adachi
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Patent number: 6087092Abstract: Compositions containing hemicelluloses in combination with polyphenols, methods of preparing the compositions, and methods of treating humans or animals with the composition are provided. Also provided is a method for increasing growth rate, improving feed efficiency and decreasing scour after weaning in an animal by administering an effective amount of the composition to the animal. The hemicelluloses preferably are not consumed by human alimentary enzymes or harmful bacteria, such as putrefactive or pathogenic bacteria, in the gastrointestinal tract, and are consumed by beneficial bacteria, such as bifidobacteria, in the gastrointestinal tract. The polyphenols preferably decrease the amount of harmful bacteria in the gastrointestinal tract. The compositions can optionally contain a carrier or be used as a feed addition and are administered to humans or other animals in an amount sufficient to treat the gastrointestinal disorder.Type: GrantFiled: July 19, 1999Date of Patent: July 11, 2000Assignee: University of MontanaInventor: Geoffrey N. Richards
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Patent number: 6087342Abstract: The cytokine stimulating effects of immune- stimulating polysaccharides and bacterial nucleic acids, and of lower molecular weight fragments thereof, is potentiated by coupling the immune-stimulating bioactive substance to the surface of a substrate, which is preferably in particulate form.Type: GrantFiled: May 15, 1998Date of Patent: July 11, 2000Assignee: FMC Biopolymer ASInventors: Terje Espevik, Gudmund Skj.ang.k-Br.ae butted.k
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Patent number: 6083976Abstract: The present invention discloses a method for the synthesis of derivatives of aloesin, alkylated at the C-7 hydroxyl group. The present invention includes the modified aloesins produced by the method of this invention and the use of these compounds as skin whitening agents.Type: GrantFiled: January 12, 1999Date of Patent: July 4, 2000Assignee: Univera Pharmaceuticals, Inc.Inventors: Abeysinghe Padmapriya, Kenneth N. Jones
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Patent number: 6080563Abstract: 2-Ketoaldonic acid is synthesized by aldolase condensation reaction involving pyruvate and an aldose acceptor in the presence of excess pyruvate. After the reaction is substantially complete, the excess pyruvate is removed from the reaction mixture by treatment with pyruvate decarboxylase.Type: GrantFiled: June 2, 1998Date of Patent: June 27, 2000Assignee: The Scripps Research InstituteInventor: Chi-Huey Wong
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Patent number: 6077698Abstract: A chemical linking agent is formed of a di- or higher functional photoactivatable compound having at least one group that is charged to improve water solubility, and two or more photoreactive groups (preferably comprising an aryl ketone such as benzophenone) that allow use of the agent in aqueous systems. Charged groups include salts of organic acids such as sulfonate, phosphonate and carboxylate groups, onium groups such as quaternary ammonium, sulfonium and phosphonium groups, and protonated amines. A surface can be coated with a substance such as a synthetic polymer, carbohydrate, protein, lipid, nucleic acid, drug, vitamin, cofactor or dye by forming an aqueous solution of the linking agent and the substance, placing the solution in contact with the surface and activating the photoreactive groups of the linking agent to cross-link the substance to the surface.Type: GrantFiled: January 2, 1998Date of Patent: June 20, 2000Assignee: SurModics, Inc.Inventors: Dale G. Swan, Richard A. Amos, Terrence P. Everson
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Patent number: 6063752Abstract: Acylated carbohydrates with at least one carboxyalkyl group etherified with the carbohydrate of the following general formulaKH(--O--CHR.sub.1 --(CH.sub.2).sub.p --(COOH or COO.sup.-)).sub.n (--O--CO--R.sub.2).sub.m,wherein KH (carbohydrate) is a monosaccharide, disaccharide, trisaccharide or polysaccharide, and whereinif KH is a monosaccharide, then n=1 to 4 and m=1 to 4 with n+m=2 to 5;if KH is a disaccharide, then n=1 to 7 and m=1 to 7 with n+m=2 to 8;if KH is a trisaccharide, then n=1 to 10 and m=1 to 10 with n+m=2 to 11; andif KH is a polysaccharide, then n=0.2 to 2.8 and m=0.2 to 2.8 with n+m=0.4 to 3 (with polysaccharide referred to the monosaccharide unit of the KH), and whereinR1 is=H or a moiety with 1-9 carbon atoms, in particular an alkyl or acyl moiety, andR2 is a moiety with 1-9 carbon atoms, in particular an alkyl or acyl moiety, and wherein p=0 to 9.Type: GrantFiled: June 18, 1997Date of Patent: May 16, 2000Assignee: Sudzucker Aktiengesellschaft Mannheim/OchsenfurtInventors: Sonja Ehrhardt, Alireza Haji Begli, Markwart Kunz
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Patent number: 6057135Abstract: D-tagatose is manufactured from cheese whey and/or milk. The cheese whey and/or milk is hydrolyzed to prepare a mixture comprising galactose and glucose. Galactose is separated from the glucose by fermentation and subjected to isomerization using L-arabinose isomerase, thereby producing D-tagatose. The D-tagatose can be used as a reduced calorie food sweetening and bulking agent, as an intermediate for the synthesis of optically active compounds, and as an additive in detergent, cosmetic and pharmaceutical formulations.Type: GrantFiled: November 13, 1992Date of Patent: May 2, 2000Assignee: Kraft Foods, Inc.Inventors: Osama O. Ibrahim, Joseph E. Spradlin
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Patent number: 6057431Abstract: The present invention provides a compound of general formula (I): ##STR1## wherein X represents group (II) or (III): ##STR2## wherein Y represents a leaving group and Z represents an oligonucleotide. The compound can specifically transfer oligonucleotides to cells which specifically recognize a specified saccharide construction. Accordingly, the compound can be used as an antiviral agent or an antitumor agent.Type: GrantFiled: December 22, 1997Date of Patent: May 2, 2000Assignee: Drug Delivery System Institute, Ltd.Inventors: Hiroshi Ishihara, Takayuki Kawaguchi, Masahiro Ikeda, Kazutaka Nakamoto, Atsushi Sasaki
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Patent number: 6051700Abstract: Disclosed are a method and process for preparing a hydroxyalkyl starch. In accordance with the disclosed invention, the starch is treated with an enzyme under conditions to increase the susceptibility of the starch to hydroxyalkylation by a hydroxyalkylating agent. After the starch is so treated, the starch is hydroxyalkylated with a hydroxyalkylating agent. The hydroxyalkylation reaction can proceed to provide a starch having an MS greater than about 0.2, while still remaining in granular form in the aqueous suspension. The method of the invention thus provides a granular starch having a higher MS than is otherwise attainable via a reaction in aqueous media.Type: GrantFiled: February 11, 1999Date of Patent: April 18, 2000Assignee: Grain Processing CorporationInventor: Jiao Wang
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Patent number: 6046179Abstract: This invention relates to a novel composition and a novel method of treating inflammatory bowel disease (IBD). More particularly, this invention pertains to a novel composition containing N-acetyl-glucosamine (NAG) as an active IBD treating agent and a pharmacologically suitable carrier, and a method of administering the composition to the colon to treat IBD in a person afflicted with IBD. A composition for treating inflammatory bowel disease in a patient suffering from inflammatory bowel disease comprising: (a) a therapeutic amount of N-acetyl-glucosamine; and (b) a pharmacologically acceptable carrier, adapted to be administered colonically to said patient.Type: GrantFiled: March 3, 1999Date of Patent: April 4, 2000Inventors: Simon Murch, Ian W. French
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Patent number: 6037466Abstract: A method for preparing hydrophobic starch derivatives wherein starch and an anhydride are reacted in a slurry with the anhydride reagent being added to the slurry in pre-emulsified form to provide a significantly faster and more efficient reaction.Type: GrantFiled: December 31, 1998Date of Patent: March 14, 2000Assignee: National Starch and Chemical Investment Holding CorporationInventors: Walter Maliczyszyn, Jeffrey G. Atkinson, Maria Tolchinsky
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Patent number: 6030951Abstract: Disclosed are the novel C-glycoside compounds Mer-1020dA, Mer-1020dB, Mer-1020dC and Mer-1020dD which have a chromophore group in common with well-known chrysomycins A and B, but can be distinguished from the chrysomycins and the like in that the novel C-glycoside compounds have a sugar residue having a higher degree of oxidation, as well as the compound Mer-1020dE comprising only the chromophore thereof. Among these compounds, the C-glycoside compounds are antibiotics which have low toxicity and can strongly inhibit the growth of solid cancer cells in particular.Type: GrantFiled: July 8, 1999Date of Patent: February 29, 2000Assignee: Mercian CorporationInventors: Takashi Nakashima, Tadashi Fujii, Kazuya Sakai, Tomohiro Sameshima, Hiroyuki Kumagai, Takeo Yoshioka
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Patent number: 6031085Abstract: Reaction at the interface of an organic solution containing an acidic reactant and an aqueous alkaline solution containing nonreducing carbohydrates such as sucrose, sugar alcohols, cyclodextrins, and polysaccharides imparts a specificity to the reaction for one or more of the primary alcohol groups of the carbohydrate reactant. The resulting activated, nonreducing carbohydrate intermediate can then be converted to a series of substantially pure, low molecular weight reaction products, including a sucrose trimer and dianhydrosucrose, and to a series of substantially pure, higher molecular weight reaction products, including 6-O-sucro cyclodextrins and poly-6-O-sucro amylose.Type: GrantFiled: April 13, 1998Date of Patent: February 29, 2000Assignee: Iowa State University Research Foundation, Inc.Inventors: John F. Robyt, Rupendra Mukerjea
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Patent number: 6025328Abstract: The present invention provides illudin analogs of the general formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 have any of the values defined in the specification, and pharmaceutically acceptable salts thereof, as well as pharmaceutical compositions comprising compounds of formula I, intermediates and processes useful for preparing compounds of formula I, and methods comprising inhibiting tumor growth or treating cancer by administering one or more compounds of formula I.Type: GrantFiled: February 20, 1998Date of Patent: February 15, 2000Assignee: The Regents of the University of CaliforniaInventors: Trevor C. McMorris, Michael J. Kelner
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Patent number: 6022966Abstract: Methods, compounds, compositions and kits that relate to pretargeted delivery of diagnostic and therapeutic agents are disclosed. In particular, methods for radiometal labeling of biotin, as well as related compounds, are described. Articles of manufacture useful in pretargeting methods are also discussed.Type: GrantFiled: November 22, 1993Date of Patent: February 8, 2000Assignee: NeoRx CorporationInventors: Linda M. Gustavson, Louis J. Theodore, Fu-Min Su, John M. Reno
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Patent number: 6020472Abstract: The sugar alcohols mentioned as title compounds can be prepared from the corresponding sugar in equimolar amounts by catalytic hydrogenation with hydrogen in aqueous solution, the hydrogenation being carried out continuously at an H.sub.2 pressure of 100 to 400 bar and a reaction temperature of 20 to 80.degree. C. using fixed-bed support-free molded bodies composed of compacted powders of alloys of the elements of the iron subgroup of group VIIIA of the periodic table with elements of group IVB and VA. The molded bodies have a compressive strength of 20 to 220 N and an internal surface area of 10 to 95 m.sup.2 /g.Type: GrantFiled: September 9, 1997Date of Patent: February 1, 2000Assignee: Bayer AktiengesellschaftInventor: Gerhard Darsow
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Patent number: 6020324Abstract: Compositions useful in the treatment of dietary disorders, and as dietary additives to provide a source of fiber and of short chain fatty acids, to reduce the level of serum cholesterol and as bulking agents in humans and animals, as well as methods of use therefor are described. The compositions and methods are based on whole .beta.-glucans.Type: GrantFiled: April 26, 1991Date of Patent: February 1, 2000Assignee: The Collaborative Group, Ltd.Inventors: Spiros Jamas, D. Davidson Easson, Jr., Bruce R. Bistrian
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Patent number: 6017744Abstract: The invention provides a human N-acetyl transferase (NACTH) and polynucleotides which identify and encode NACTH. The invention also provides expression vectors, host cells, agonists, antibodies and antagonists. The invention also provides methods for treating disorders associated with expression of NACTH.Type: GrantFiled: August 4, 1998Date of Patent: January 25, 2000Assignee: Incyte Pharmaceuticals, Inc.Inventors: Jennifer L. Hillman, Y. Tom Tang, Neil C. Corley
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Patent number: 6018035Abstract: Novel polysaccharide compounds are disclosed for decorating biomolecular surfaces to increase isotropic size and mask antigenicity. The oligosaccharides may be synthesized as repeating disaccharide units, or may be derived by acid hydrolysis of naturally occurring polysaccharides. Such natural sources include chondroitins obtained from shark cartilage, or hyaluronic acid. The polyanionic sulfate groups contained in the sugar moieties impart negative charges which repel the molecules from the negatively charged wall of capillaries, to lengthen retention times of decorated drug molecules, such as crosslinked hemoglobin, in the peripheral circulation.Type: GrantFiled: July 21, 1997Date of Patent: January 25, 2000Assignee: Baxter International Inc.Inventors: Ton That Hai, David E. Pereira, Deanna J. Nelson
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Patent number: 6011042Abstract: The present invention is directed to conjugates such as polymeric prodrugs of aromatic, hydroxyl-containing compounds and methods of making and using the same. These polymeric prodrugs are preferably esters of hydroxyl-containing aromatic compounds and are formed by reacting a desired aromatic, hydroxyl-containing compound with a substantially non-antigenic polymer so as to produce a transport form having an ester linkage between the aromatic compound and the polymer. Preferred aromatic hydroxyl-containing compositions include 10- and 11-hydroxycamptothecin derivatives. Methods of treatment are also disclosed.Type: GrantFiled: October 10, 1997Date of Patent: January 4, 2000Assignee: Enzon, Inc.Inventors: Richard B. Greenwald, Annapurna Pendri, Yun H. Choe
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Patent number: 6001995Abstract: Aminated cellulose fiber obtained by adding one or more starches etherified with C.sub.2 -C.sub.5 -alkylamines which may additionally be substituted in the alkyl moiety by 1 to 2 further hydroxyl and methoxy groups and whose amino group is a primary or C.sub.1 -C.sub.4 -alkyl-substituted secondary, tertiary or quaternary amino or ammonium group and having a degree of substitution between 0.1 and 3 to a viscose dope, an alkali cellulose or a cellulose solution and spinning fiber therefrom.Type: GrantFiled: November 21, 1997Date of Patent: December 14, 1999Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: Andreas Schrell, Bernd Huber
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Patent number: 6001554Abstract: Multiple micro-encapsulations of a high concentration oleophilic substance using heat to set the primary particle renders the composition suitable for the production of free-flowing powders or beadlets. Microencapsulation involves forming an emulsion out of the oleophilic substance and a polymer, and then use heat setting and/or cross-linking the polymer encapsulates the oleophilic composition. This process is then repeated with a second polymer or third polymer, and with or without cross-linked via the same or different mechanism to further protect the oleophilic substance.Type: GrantFiled: January 16, 1998Date of Patent: December 14, 1999Assignee: Roche Vitamins Inc.Inventors: Stasia Boyle, Kuei-Tu Chang
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Patent number: 5998594Abstract: A chromogenic receptor comprises a self-assembled chromogenic compound having at least one intrinsic binding site. The chromogenic compound is characterized by the property of producing a reversible color change responsive to binding a target substrate to the receptor. The chromogenic compound has a transition metal ion and at least one ligand bound to the transition metal ion. The ligand is selected from the group consisting of substituted phenanthroline, substituted 2,2'-bipyridine and substituted 2,2':6',2"-terpyridine. The transition metal is selected from the group consisting of Cu(I), Cu(II), Ag(I), Ni(II), Fe(II), Fe(III), Ru(II), Co(III), and Os(II). Self-assembly can be effected in the presence of Cu(I) to form receptors for dicarboxylic acids, carbohydrate, amino acids, steroids and pyrophosphates. The receptors are characterized by the formation of a 2:1 complex of the target substrate with the receptor producing a visible color change from orange to red and a measurable change in its luminescence.Type: GrantFiled: December 30, 1994Date of Patent: December 7, 1999Assignee: University of Pittsburgh of the Commonwealth System of Higher EducationInventors: M. Scott Goodman, Andrew D. Hamilton
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Patent number: 5998608Abstract: The invention relates to a method of manufacturing an aldose or an aldose derivative, with n carbon atoms, characterised by the fact than an aqueous solution of a salt of acid derivative of monosaccharide with n+2 carbon atoms containing at least one .alpha.-hydroxy acid unit, with the exception of gluconic acid, is brought into contact with hydrogen peroxide in the presence of at least one salt of a metal chosen from the group consisting of cobalt, nickel and ruthenium.Type: GrantFiled: October 6, 1998Date of Patent: December 7, 1999Assignee: Roquette FreresInventor: M. Rodolphe Tamion
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Patent number: 5989352Abstract: The invention relates to a new anhydrous lactitol crystalline composition exhibiting essentially a porous and cellular structure and possessing a very high lactitol crystalline purity. This composition has remarkable functional properties, making its use particularly recommended in the manufacture of tablets or various powders to be dissolved in water. The invention also relates to a new process which makes it possible to manufacture the crystalline lactitol composition.Type: GrantFiled: September 23, 1997Date of Patent: November 23, 1999Assignee: Roquette FreresInventor: Jean-Jacques Caboche
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Patent number: 5985852Abstract: This invention provides compositions for inhibiting the binding between two cells, one expressing P- or L-selectin on the surface and the other expressing the corresponding ligand. A covalently crosslinked lipid composition is prepared having saccharides and acidic group on separate lipids. The composition is then interposed between the cells so as to inhibit binding. Inhibition can be achieved at an effective oligosaccharide concentration as low as 10.sup.6 fold below that of the free saccharide. Since selectins are involved in recruiting cells to sites of injury, these composition scan be used to palliate certain inflammatory and immunological conditions.Type: GrantFiled: February 16, 1999Date of Patent: November 16, 1999Assignee: The Regents of the University of CaliforniaInventors: Jon O. Nagy, Wayne R. Spevak, Falguni Dasgupta, Caroline Bertozzi
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Patent number: 5986087Abstract: Sulfonated regenerated cellulose fiber obtained by adding a modifier to a viscose dope or alkali cellulose or cellulose solution and spinning fiber therefrom, wherefor the modifier is a starch etherified with C.sub.2 -C.sub.5 -alkylsulfonic acid radicals and having a degree of substitution of 0.1 to 3, a starch admixed with vinylsulfonic acid or a styrenesulfonic acid, or a polymeric styrenesulfonic acid or polymeric vinylsulfonic acid.Type: GrantFiled: November 21, 1997Date of Patent: November 16, 1999Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: Andreas Schrell, Bernd Huber