Nitrogen-containing Reactant Patents (Class 528/422)
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Patent number: 7524513Abstract: The present invention is directed to surface functionalization of polymeric fibers. Surface biofunctionalization is achieved by covalent conjugation of biofunctional igands and/or cell growth factors that are crucial for cell attachment, proliferation and functions. Biofunctional fibers could be fabricated into three-dimensional scaffolds. Polymer fibers described here comprise of biocompatible polymers that are either biodegradable ornon-biodegradable. This patent also describes a series of new biodegradable polyphosphoramidates for the processing of biodegradable fibers. Scaffolds made of non-biodegradable functional fibers could be used for in vitro cell culture (for example, ex vivo cell expansion), while biodegradable functional fibers could be fabricated into tissue engineering scaffolds.Type: GrantFiled: June 14, 2002Date of Patent: April 28, 2009Inventors: Mao Hai-Quan, Chee Mun Kuan, Kam Weng Leong
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Publication number: 20090105387Abstract: Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A) The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.Type: ApplicationFiled: August 25, 2008Publication date: April 23, 2009Inventors: Wolfgang Wehner, Trupti Dave, Thomas Wannemacher
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Publication number: 20090095200Abstract: The present invention relates to a modified colored pigment comprising a colored pigment having an attached organic group. The organic group is attached to the colored pigment via at least one carbon atom of a C—C single bond or double bond, wherein the C—C single bond or double bond is not a component of an aromatic system. The organic group further comprises at least one activating group on at least one carbon atom of the C—C single bond or double bond. A method of preparing a modified colored pigment is also disclosed, as are aqueous and non-aqueous dispersions, e.g., including ink jet inks, comprising the modified colored pigments.Type: ApplicationFiled: October 10, 2007Publication date: April 16, 2009Inventors: James A. Belmont, Elizabeth G. Burns
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Publication number: 20090095942Abstract: It is a first object of the present invention to provide a lithium secondary battery using a conductive polymer such as polyaniline, which exhibits a stable electrical conductivity over a long time. To achieve the first object, there is provided a positive electrode material for a lithium secondary battery, comprising an electrically conductive polymer having an amino group, a hydrogen bonding compound, and a protonic acid. Further, it is a second object of the present invention to provide a lithium secondary battery exhibiting a high charge-discharge capacity while using a conductive polymer such as polyaniline. To achieve the second object, there is provided a positive electrode material for a lithium secondary battery, comprising an electrically conductive polymer, and LiNiO2 and/or liFePO4.Type: ApplicationFiled: September 9, 2005Publication date: April 16, 2009Inventors: Shuichiro Yamaguchi, Kenichi Hamazaki, Yasumasa Mochizuki, Takeshi Shimomura, Masahide Ozaki, Satoru Yatabe, Noboru Oyama
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Publication number: 20090098176Abstract: Described herein are implantable medical devices comprising a biocompatible polymer comprising a triggerable bioadhesive property that allows the device to adhere to body tissue. The triggerable bioadhesive property of the polymer can be triggered or activated by exposure to a stimulus. Also, the present invention pertains to methods of making an implantable medical device comprising a biocompatible polymer comprising a triggerable bioadhesive property that allows the device to adhere to body tissue.Type: ApplicationFiled: September 10, 2008Publication date: April 16, 2009Applicant: Boston Scientific Scimed, Inc.Inventors: Michael N. Helmus, Yixin Xu, Barron W. Tenney, Paul L. Valint, Shrirang V. Ranade
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Patent number: 7517477Abstract: An electronic device, such as a thin film transistor, containing a polymer of the formula or structure wherein at least one of each R, R1, R2, R3, R4, R5 and R6 is independently hydrogen, alkyl, aryl, alkoxy, halogen, arylalkyl, cyano, or nitro; x and y represent the number of R substituents; a and b represent the number of rings; and n represents the number of repeating groups or moieties.Type: GrantFiled: April 6, 2006Date of Patent: April 14, 2009Assignee: Xerox CorporationInventors: Yiliang Wu, Ping Liu, Beng S. Ong
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Patent number: 7517476Abstract: A polymer represented by Formula or structure (I) wherein at least one of each R, R1, R2, R3, R4, R5, and R6 is independently hydrogen, alkyl, aryl, arylalkyl, alkoxy, halogen, cyano, or nitro; x, y, a and b represent the number of groups and rings, respectively; and n represents the number of repeating groups or moieties.Type: GrantFiled: April 6, 2006Date of Patent: April 14, 2009Assignee: Xerox CorporationInventors: Yiliang Wu, Ping Liu, Beng S. Ong
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Publication number: 20090088484Abstract: The invention provides compositions that are NO-releasing polymers or low-molecular-weight NO-releasing compounds. The invention also provides the secondary amine polymers that are the precursors as well as the products of the NO-releasing polymers. The invention provides methods of making the secondary amine polymer precursors and the NO-releasing polymers. The invention provides methods for the nitrosation of low-molecular-weight amines and secondary amine polymers to form the corresponding low-molecular-weight NO-releasing compounds and polymers.Type: ApplicationFiled: April 18, 2008Publication date: April 2, 2009Inventor: Dillip K. Mohanty
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Patent number: 7510739Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: April 21, 2005Date of Patent: March 31, 2009Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Patent number: 7511113Abstract: An aromatic ether oligomer or polyaromatic ether comprising the formula: O—Arn; wherein Ar is an independently selected divalent aromatic radical; formed by reacting a dihydroxyaromatic with a dihaloaromatic; and wherein the reaction is performed in the presence of a copper compound and cesium carbonate. The polyaromatic ether is formed when neither the dihydroxyaromatic nor the dihaloaromatic is present in an excess amount. The aromatic ether oligomer is formed by using an excess of either dihydroxyaromatic or dihaloaromatic. A phthalonitrile monomer comprising the formula: formed by reacting a 3- or 4-nitrophthalonitrile with a hydroxy-terminated aromatic ether oligomer. A thermoset formed by curing the phthalonitrile monomer. Processes for forming all the above.Type: GrantFiled: March 17, 2004Date of Patent: March 31, 2009Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Dawn D. Dominguez
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Publication number: 20090069435Abstract: A pharmaceutically active agent, a pharmaceutically active agent carrier and method of use thereof are described. In some embodiments, a system may include a composition. The composition may include one or more bridged polycyclic compounds. At least one of the bridged polycyclic compounds may include at least two cyclic groups, and at least two pharmaceutically active agents may be associated with the bridged polycyclic compound. In some embodiments, one or more bridged polycyclic compounds may be applied to an topical surface and/or an otic surface of an animal (e.g., canine, feline) such that an topical malady and/or otic malady may be inhibited and/or ameliorated.Type: ApplicationFiled: August 11, 2008Publication date: March 12, 2009Inventor: Jeffery A. Whiteford
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Patent number: 7497975Abstract: A method for producing a conductive polyaniline comprising oxidative polymerizing aniline or its derivative in the presence of at least one member of a sulfonic acid compound and a water-insoluble organic polymer compound having protonic acid group in a mixed layer composed of an aqueous layer and organic layer, during which it establishes the presence of a molecular weight adjusting agent and, optionally, a phase transfer catalyst so as to stably disperse them in an organic solvent, and an organic polymer composition containing the conductive polyaniline.Type: GrantFiled: February 18, 2008Date of Patent: March 3, 2009Assignee: The Yokohama Rubber Co., Ltd.Inventors: Tsukasa Maruyama, Yuko Sekine
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Publication number: 20090051281Abstract: A polymer compound for an organic electroluminescence device, which has a halogen element content of 50 ppm by mass or less.Type: ApplicationFiled: February 14, 2007Publication date: February 26, 2009Applicant: IDEMITSU KOSAN CO., LTDInventors: Tetsuya Inoue, Hirofumi Kondo
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Publication number: 20090050014Abstract: A method of modifying a pigment that includes reacting a reactive compound having an X-[Y]n reactive group with a secondary compound N-S-ZM to form a substituted reactive intermediate [Y]a-X-(N-S-ZM)b. A pigment is reacted with the substituted reactive intermediate [Y]a-X-(N-S-ZM)b to attach the substituted reactive intermediate to the surface of the pigment to form a surface modified pigment. X may be a sulfonyl, phosphoryl, or 1,3,5-triazinyl group, Y may be a halogen leaving group, N may be a basic nucleophilic group, S may be an organic group, and ZM may be an ionizable end group. Also, n is an integer between 1 and 3, b is an integer between 1 and 3, and a=n?b. When n is equal to or greater than b, and if b is 2 or 3, each N-S-ZM can be the same or different.Type: ApplicationFiled: August 22, 2008Publication date: February 26, 2009Applicant: SENSIENT COLORS INC.Inventors: Puthalath K. Sujeeth, John P. Kane, Daniel A. Ouellette, Mark Ulrich, Vincent Shing, Michael Bogomolny
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Patent number: 7494720Abstract: A polymer formed from optionally substituted first repeat units of formula (I) wherein Ar is selected from (a) aromatic hydrocarbon substituted with at least one electron withdrawing group or electron withdrawing heteroaryl. The polymers have application in electroluminescent devices.Type: GrantFiled: November 4, 2003Date of Patent: February 24, 2009Assignee: Cambridge Display Technology LimitedInventors: Jeremy Burroughes, Richard Friend, Clare Foden
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Publication number: 20090045137Abstract: The present invention relates to a method of producing novel monodisperse chelate resins based on crosslinked polymer beads containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups that have a high uptake capacity for heavy metals and rapid kinetics.Type: ApplicationFiled: July 15, 2008Publication date: February 19, 2009Inventors: Reinhold Klipper, Michael Schelhaas, Stefan Neumann, Wolfgang Zarges
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Publication number: 20090048410Abstract: The present invention is directed to a class of membrane active polymers useful for cellular delivery of compounds. Conjugation of the described membrane active polymers to targeting, anti-opsonization, and anti-aggregation agents provides polymers suitable for in vivo delivery. The use of multiple reversible linkages connecting component parts provides for physiologically responsive activity modulation.Type: ApplicationFiled: May 19, 2008Publication date: February 19, 2009Inventors: Darren H. Wakefield, David B. Rozema, Jon A. Wolff, James E. Hagstrom
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Patent number: 7491408Abstract: A novel A1-B-A2 polymer having a number average molecular weight of 10000 to 100000 is provided that has excellent bioabsorbability so as to disappear in a predetermined period of time even when embedded in a large amount in the body, has good kinetic properties, and is useful for preparing tissue anti-adhesion films. This polymer is composed of segments A1 and A2 each having at least either of modified and unmodified amino acid groups, and segment B composed of PEG having a number average molecular weight of 8000 to 50000. The polymer contains both the modified and unmodified amino acid groups, the content of the modified amino acids is 20 to 85 mol % of all the amino acids in the polymer, and segment A1 is bonded to one end of segment B and segment A2 is bonded to the other end of segment B.Type: GrantFiled: December 13, 2002Date of Patent: February 17, 2009Assignee: NOF CorporationInventors: Atsuhiko Ogura, Shinji Tanaka, Yoshikazu Nakashima, Shigeru Kitano
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Publication number: 20090036622Abstract: Luminescent polymers having sterically twisted arylene repeat units are provided, which are particularly suited as electroluminescent polymers. Monomers necessary for the synthesis of the sterically twisted polyarylene are provided, as are electroluminescent device utilizing these polymers.Type: ApplicationFiled: February 22, 2006Publication date: February 5, 2009Applicant: SUMATION CO. LIMITEDInventors: Matthew L. Marrocco, Virgil J. Lee, Farshad J. Motamedi
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Publication number: 20090035535Abstract: An ink-jet ink used to form a functional film by ejecting an ink droplet using an ink-jet system onto a non-penetrative substrate includes a compound that has an amino group and an alkylene glycol portion within a molecule and serves as a wettability enhancer. Also provided are a method of producing the ink-jet ink, a method of producing a color filter using the ink-jet ink, and a method of forming a color filter or a functional film.Type: ApplicationFiled: June 27, 2008Publication date: February 5, 2009Applicant: FUJIFILM CORPORATIONInventors: Naotaka Wachi, Shinji Fujimoto, Koutaro Okabe
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Publication number: 20090032774Abstract: Deaggregated substituted and unsubstituted polyparaphenylenes, polyparaphenylevevinyles, polyanilines, polyazines, polythiophenes, poly-p-phenylene sulfides, polyfuranes, polypyrroles, polyselenophene, polyacetylenes formed from soluble precursors and combinations thereof and copolymers thereof and methods of fabrication are described. The deaggregated polymer molecules when subsequently doped show higher electrical conductivity. Agents such as lithium chloride, m-cresol and nonylphenol are used to deaggregate the polymer molecules. The deaggregating agents can be added prior to or during doping the molecules.Type: ApplicationFiled: August 3, 2007Publication date: February 5, 2009Inventors: Marie Angelopoulos, Bruce K. Furman
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Patent number: 7485740Abstract: A polycarbodiimide polymer that is reversibly switchable between two distinct optical orientations is described. The polymer is useful in forming devices such as filters, storage media, actuators, and displays. Methods of making and using such polymers are also described.Type: GrantFiled: January 26, 2006Date of Patent: February 3, 2009Assignee: North Carolina State UniversityInventors: Bruce M. Novak, Hong-Zhi Tang
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Publication number: 20090023890Abstract: The present invention is directed to a class of membrane active polymers useful for cellular delivery of compounds. Conjugation of the described membrane active polymers to targeting, anti-opsonization, and anti-aggregation agents provides polymers suitable for in vivo delivery. The use of multiple reversible linkages connecting component parts provides for physiologically responsive activity modulation.Type: ApplicationFiled: May 19, 2008Publication date: January 22, 2009Inventors: Sean D. Monahan, Darren H. Wakefield, David B. Rozema, Lori Higgs, Jon A. Wolff, James E. Hagstrom
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Patent number: 7479535Abstract: The present invention relates to novel phosphorus-containing compounds with polymeric chains, and methods of making and using the same. In part, subject compositions containing phosphorus-containing compounds with polymeric chains and a therapeutic agent, and methods of making and using the same, are described. Certain of the subject compositions exhibit reverse thermal gelation.Type: GrantFiled: February 25, 2003Date of Patent: January 20, 2009Assignee: Guilford Pharmaceuticals, Inc.Inventors: Keith Branham, Mahesh V. Chaubal, James P. English, Donna Hall, Zhong Zhao
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Publication number: 20090018040Abstract: A succinimide dispersant comprising the condensation product of a hydrocarbyl-substituted succinic anhydride or reactive equivalent thereof with an alkylene polyamine, wherein the alkylene polyamine is a condensed amine, exhibits improved viscometrics.Type: ApplicationFiled: February 3, 2006Publication date: January 15, 2009Applicant: THE LUBRIZOL CORPORATIONInventors: Renee A. Eveland, Matthew D. Gieselman, Douglas M. Barr, Gregory R. McCullough, John K. Pudelski
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Patent number: 7476765Abstract: An process of forming a chiral conducting polymer, e.g., polyaniline, is provided including reacting a monomer, e.g., an aniline monomer, in the presence of a chiral dopant acid to produce a first reaction mixture by addition of a solution including a first portion of an oxidizing agent, the first portion of oxidizing agent characterized as insufficient to allow complete reaction of the monomer, and further reacting the first reaction mixture in the presence of the chiral dopant acid by addition of a solution including a second portion of the oxidizing agent, the second portion of oxidizing agent characterized as insufficient to allow complete reaction of the monomer, and repeating the reaction by addition of further portions of the oxidizing agent until the monomer reaction is complete to produce a chiral conducting polymer, e.g., polyaniline.Type: GrantFiled: July 11, 2006Date of Patent: January 13, 2009Assignee: Los Alamos National Security, LLCInventors: Hsing-Lin Wang, Wenguang Li
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Publication number: 20090011946Abstract: A method for chemical detection is provided. In one aspect, the method comprises exposing a sample to a sequence specific polymer under conditions such that an analyte in the sample binds to the polymer. Binding of the analyte to the sequence specific polymer results in a change in a property of the sequence specific polymer that is transduced to a response transduction medium, which generates a detectable response. Another aspect provides a detection device comprising the sequence specific polymer and response transduction medium.Type: ApplicationFiled: December 20, 2005Publication date: January 8, 2009Applicant: KalinexInventors: Arun Majumdar, Mark O. Trulson
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Publication number: 20090001802Abstract: A novel class of dendritic macromolecules is provided having a core, a hyperbranched structure, and a plurality of units satisfying the formula —NR2(C?O)R1, in which R1 is not a continuation of the hyperbranched structure. Methods of preparing these dendritic macromolecules are also provided, as well as methods of using dendritic macromolecules, including those described above, in separation processes or as part of in situ leach mining processes. A class of facilities for in situ leach mining is also provided.Type: ApplicationFiled: May 21, 2008Publication date: January 1, 2009Inventors: Mamadou S. Diallo, Jean Frechet, Emine Boz
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Publication number: 20090004133Abstract: The present invention provides improved methods and compositions for therapeutically controlling and/or reducing serum phosphate levels in animals and mammalian patients. The methods comprise administering to the patient an amount of a dendrimer composition effective to prevent absorption of substantial amounts of phosphate from the patient's GI tract. In a preferred version, a dose of between 2.5 and 15 grams per day is effective to prevent over 80% of phosphate present in the patient's GI tract from being absorbed. The dendrimer composition may comprise a hydrocitrate, hydrochloride, hydrobromide, hydroacetate or hydroanionic form.Type: ApplicationFiled: October 12, 2007Publication date: January 1, 2009Inventors: Hector F. DeLuca, Katarzyna M. Barycka, Lori Plum, Julia Zella, Margaret Clagett-Dame
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Publication number: 20080319097Abstract: The present invention relates to polymer resins, methods for their generation and uses thereof. In one aspect the present invention is directed to a resin obtainable by aminolysis of a precursor resin, wherein the precursor resin is obtainable by polymerisation of i) polydisperse di- or oligofunctional vinyl or cyclic ether compounds and ii) aminolytically sensitive, mono-functional vinyl or cyclic ether compounds.Type: ApplicationFiled: August 26, 2005Publication date: December 25, 2008Applicant: Versamatrix A/SInventors: Ib Johannsen, Patrik Gavelin
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Publication number: 20080317704Abstract: The present invention makes it possible to attain various applications using antifreeze activity without an antifreeze protein. The agent for the inhibition of ice-crystal growth includes a non-proteinaceous substance, wherein an aqueous solution of the non-proteinaceous substance in a concentration of 10 mg/ml causes the deposition of non-flat disk-shaped ice crystals. The agent for the lowering of an ice-crystal growth initiation temperature includes a non-proteinaceous substance, wherein an aqueous solution of the non-proteinaceous substance in a concentration of 10 mg/ml shows thermal hysteresis by a temperature of 0.020° C. or higher. The agent for the control of water freezing includes a non-proteinaceous substance, wherein an aqueous solution of the non-proteinaceous substance in a concentration of 10 mg/ml shows thermal hysteresis by a temperature of 0.020° C. or higher and causes the deposition of non-flat disk-shaped ice crystals.Type: ApplicationFiled: August 18, 2008Publication date: December 25, 2008Inventors: Hitoshi Obata, Hidehisa Kawahara, Takashi Tomita
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Publication number: 20080317699Abstract: Dendrimers comprising N-acyl urea terminal moieties are described herein. The dendrimers can be used, for example, in the treatment of arthritis.Type: ApplicationFiled: June 19, 2008Publication date: December 25, 2008Inventors: Luis Z. Avila, Robert J. Miller, Lauren Elizabeth Young, Rajesh Vasant Kamath
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Publication number: 20080315757Abstract: An electronic device containing a hole transporting semiconductive polymer comprising a first repeat unit comprising a first nitrogen of a triarylamine in the polymer backbone and a second nitrogen of an arylamine pendant from the polymer backbone, characterised in that said semiconductive polymer performs the function of transporting holes to or from a semiconductive material in said device.Type: ApplicationFiled: December 18, 2006Publication date: December 25, 2008Applicants: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Mary McKiernan, Natasha Conway, Richard Wilson
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Patent number: 7468149Abstract: The present invention provides a process for the preparation of conductive polymer dispersion. In the present invention the polymer is dispersed after its synthesis, hence dispersion contains only pure poly aniline salt and stabilizer. It therefore provides a pure poly aniline dispersion without any other contamination. More particularly, the purity of the dispersed poly aniline is achieved up 99% of initiator residue and monomer residue in the present invention. The present process provides a poly aniline dispersion in water, organic solvents and also in a mixture of solvents.Type: GrantFiled: December 28, 2005Date of Patent: December 23, 2008Assignee: Council of Scientific and Industrial ResearchInventors: Srinivasan Palaniappan, Chellachamy Anbalagan Amarnath
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Publication number: 20080309229Abstract: A semiconductive polymer comprising a first repeat unit in the polymer backbone comprising general formula 1: where a=1 or 2; b=0 or 1; and c=0, 1 or 2, provided that when c=0 then b=0; Ar1, Ar2, Ar3, Ar4, Ar5, and Ar6 each independently represent an aryl or heteroaryl ring or a fused derivative thereof; characterised in that at least one of Ar1, Ar2, Ar4, and Ar5 is non-conjugating; and provided that (a) when a=1, Ar1 is not linked to Ar2 by a direct bond, (b) when b=1 and c=1, Ar4 is not linked to Ar5 by a direct bond, (c) when b=0 and c=1, Ar2 is not linked to Ar5 by a direct bond, (d) when a=2, the Ar1 groups are not linked by a single bond, and (e) when c=2, the Ar5 groups are not linked by a single bond.Type: ApplicationFiled: December 18, 2006Publication date: December 18, 2008Applicants: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Annette Steudel, Nalinkumar Lallubhai Patel, Jonathan Pillow, Mary McKiernan, Sophie Heidenhain, Natasha Conway
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Patent number: 7465782Abstract: A method of making polybenzobisoxazole containing fiber by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming the polymer into a fiber and heating the fiber wherein ring closure occurs in the hydroxylated polymer.Type: GrantFiled: July 13, 2005Date of Patent: December 16, 2008Assignee: E.I Du Pont De Nemours & CompanyInventor: Kiu-Seung Lee
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Patent number: 7465781Abstract: A method of making polybenzobisoxazole containing polymer by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming a solidified polymer and heating the solidified polymer wherein ring closure occurs in the hydroxylated polymer.Type: GrantFiled: July 13, 2005Date of Patent: December 16, 2008Assignee: E.I. du Pont de Nemours & CompanyInventor: Kiu-Seung Lee
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Publication number: 20080305038Abstract: The present invention refers to novel conjugate molecules and their use or the transport of nano- and macromolecular structures into cells and/or the nucleus. More particularly, the present invention refers to conjugate molecules containing a carrier, preferably thiopyridyl moieties, and a cargo moiety. Thereby, the thiopyridyl moiety is bound to the cargo moiety to act as a carrier, particularly for efficient intracellular and/or intranuclear delivery of drugs, nano-or macromolecular structures, etc. The novel conjugate molecules are provided for the manufacture of a medicament for gene therapy, apoptosis, or for the treatment of diseases such as cancer, autoimmune diseases or infectious diseases.Type: ApplicationFiled: February 15, 2006Publication date: December 11, 2008Applicants: LUDWIG-MAXIMILIANS-UNIVERSITÄT, TECHNISCHE UNIVERSITÄT MÜNCHENInventors: Joseph Rosenecker, Carsten Rudolph, Christian Plank, Markus Elfinger
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Publication number: 20080299557Abstract: The present invention provides copolymers that facilitate nucleic acid analysis, compositions that comprise such copolymers, and methods for making or using such copolymers.Type: ApplicationFiled: February 6, 2006Publication date: December 4, 2008Applicant: QIAGEN GmbHInventors: Ralf Himmelreich, Roland Fabis, Christoph Erbacher, Sabine Werner, Bernd Springer
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Publication number: 20080300360Abstract: Water-entrained compositions comprising colloidal or suspensoidal solutions comprising polyimide pre-polymers/oligomers are described. These compositions are obtained in water by initial dispersion of the resin constituents in water to from colloids or suspensoids. The water-entrained polyimide compositions can be applied to numerous surfaces or more beneficially used for composite fabrication. The coated surfaces or polyimide-pre-polymer impregnated reinforcing materials are subsequently cured and are ideal for providing thermal protection.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Inventors: Hyman Ralph Lubowitz, Thomas Karl Tsotsis
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Patent number: 7455792Abstract: Disclosed herein are an organic conductive material and a conductive varnish containing it in an amount of 1 to 80 wt %. The organic conductive material comprises an oligoaniline derivative represented by the formula (1) in which quinoimine as an oxidant formed at the time of synthesis is reduced by a reducing agent and a salt is formed with an electron accepting dopant. (where R1 to R3 independently denote a hydrogen atom, unsubstituted or substituted monovalent hydrocarbon group, organoxy group, or acyl group; A and B independently denote a divalent group represented by the formula (2) or (3) below; where, R4 to R11 independently denote a hydrogen atom, hydroxyl group, unsubstituted or substituted monovalent hydrocarbon group, organoxy group, acyl group, or sulfonic group; and m and n independently denote a positive number equal to or larger than 1 such that m+n?20.Type: GrantFiled: February 19, 2003Date of Patent: November 25, 2008Assignee: Nissan Chemical Industries, Ltd.Inventors: Takuji Yoshimoto, Hiroyoshi Fukuro, Hitoshi Furusho, Akira Yanagimoto
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Patent number: 7452959Abstract: An aromatic ether oligomer or polyaromatic ether comprising the formula: O—Arn; wherein Ar is an independently selected divalent aromatic radical; formed by reacting a dihydroxyaromatic with a dihaloaromatic; and wherein the reaction is performed in the presence of a copper compound and cesium carbonate. The polyaromatic ether is formed when neither the dihydroxyaromatic nor the dihaloaromatic is present in an excess amount. The aromatic ether oligomer is formed by using an excess of either dihydroxyaromatic or dihaloaromatic. A phthalonitrile monomer comprising the formula: formed by reacting a 3- or 4-nitrophthalonitrile with a hydroxy-terminated aromatic ether oligomer. A thermoset formed by curing the phthalonitrile monomer. Processes for forming all the above.Type: GrantFiled: March 17, 2004Date of Patent: November 18, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Dawn D. Dominguez
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Publication number: 20080281070Abstract: Free radical living polymerization attached nanocluster (metal oxide, e.g., gamma-Fe2O3 or FeO nanocluster or quantum dot (e.g., CdSe) nanocluster, are used for polymerization of polymer or copolymer to provide nanocomposite polymers or copolymer arms around nanoclusters.Type: ApplicationFiled: May 19, 2006Publication date: November 13, 2008Applicant: Cornell Research Foundation, Inc.Inventors: Dotsevi Y. Sogah, Sarav B. Jhaveri
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Publication number: 20080277333Abstract: A chlorine resistant polyamide is formed from the reaction product of an amine and an acid chloride monomer wherein the acid chloride monomer is modified with electron-withdrawing groups that exhibit sufficient activity to (i) minimize any chlorination on both the amine and acid chloride side and (ii) minimize N-chlorination. A membrane is made from the polyamide and, in one application, the membrane is used in a desalination unit.Type: ApplicationFiled: May 9, 2007Publication date: November 13, 2008Inventors: Andrew Patrick Murphy, Balasingam Murugaverl, Robert Lee Riley
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Publication number: 20080281036Abstract: The present invention provides a pigment dispersion composition which has good fluidity and dispersion stability even in the case of having a high pigment concentration and exhibits excellent development characteristics when it is used for the areas requiring development characteristics such as a resist composition for a color filter or a resist composition for a black matrix. The pigment dispersion composition of the present invention is a pigment dispersion composition formed by dispersing a pigment in a dispersion medium, wherein the surface of said pigment is coated with an acid radical-containing reactant produced by the reaction of a carbodiimide compound having at least one carbodiimide group with an acid radical-containing resin having an acid value of 20 to 300 mgKOH/g and a weight average molecular weight of 1000 to 100000.Type: ApplicationFiled: July 5, 2005Publication date: November 13, 2008Applicant: SAKATA INX CORP.Inventors: Kazunori Ito, Hideo Shibata, Naoyuki Kitaoka, Akira Hayashi, Tomohiro Kita
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Publication number: 20080281044Abstract: The present invention is directed to membrane active polymers useful for cellular delivery of compounds. Described are polyconjugates systems that incorporate targeting, anti-opsonization, anti-aggregation, and transfection activities into small biocompatible in vivo delivery conjugates. The use of reversible modification provides for physiologically responsive activity modulation.Type: ApplicationFiled: June 17, 2008Publication date: November 13, 2008Inventors: Sean D. Monahan, Lori Higgs, Darren H. Wakefield, David B. Rozema, Jon A. Wolff, James E. Hagstrom
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Patent number: 7449494Abstract: The present invention is directed to a series of new cationic polymeric materials and a process for their use as moisturizing agents on skin. The polymers of the invention are made by the reaction of dimethyl ethanolamine, and tetra 2-hydroxyalkyl ethylene diamne with di-chloro glycerin in water.Type: GrantFiled: October 6, 2004Date of Patent: November 11, 2008Assignee: SurfaTech CorporationInventor: Anthony J. O'Lenick, Jr.
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Publication number: 20080269456Abstract: Multifunctional reactive polymers created by chemical vapor deposition (CVD) and methods of making such polymeric systems are provided. Such polymers provide multifunctional surfaces which can present two or more different molecules (e.g. biological ligands) in controlled ratios. Polymers may include compositional gradients allowing attached ligands to be presented as continuous gradients across a surface. The polymer compositions are modularly designable and applicable to a wider range of applications, including biomedical devices and diagnostic systems.Type: ApplicationFiled: March 24, 2008Publication date: October 30, 2008Inventors: Joerg Lahann, Yaseen Elkasabi
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Patent number: 7442328Abstract: A series of retardants on polymerization of aniline. The molecular structure of the retardant are aromatic compounds with meta-disubstitution. The two substituents of the retardant could be respectively selected from the group of amino group, hydroxyl group, thiol group, and mixtures thereof. A chemical composition for polyaniline preparation comprising: aniline monomer, oxidant, protic acid, retardant and solvent.Type: GrantFiled: March 7, 2006Date of Patent: October 28, 2008Assignee: Industrial Technology Research InstituteInventors: Wen-Nan Tseng, Li-Duan Tsai
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Publication number: 20080262192Abstract: To provide an amino group-containing water-soluble copolymer having a high chelating performance and clay dispersancy and a method of producing the amino-group containing water-soluble copolymer efficiently and with high productivity. A water-soluble polymer containing an amino group-containing monomer unit, wherein the water-soluble polymer has a molecular weight distribution of 12 or less, and a method of producing the water-soluble polymer according to any one of claims 1 to 4, wherein the method comprises a step of polymerizing an amino group-containing allyl monomer using an initiator containing a heavy metal ion and sulfurous acid (sulfite), hydrogensulfite or hydrogen peroxide.Type: ApplicationFiled: December 13, 2005Publication date: October 23, 2008Applicant: NIPPON SHOKUBAI CO., LTD.Inventor: Atsuro Yoneda