Nitrogen-containing Reactant Patents (Class 528/422)
  • Patent number: 7524513
    Abstract: 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: Grant
    Filed: June 14, 2002
    Date of Patent: April 28, 2009
    Inventors: Mao Hai-Quan, Chee Mun Kuan, Kam Weng Leong
  • Publication number: 20090105387
    Abstract: 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: Application
    Filed: August 25, 2008
    Publication date: April 23, 2009
    Inventors: Wolfgang Wehner, Trupti Dave, Thomas Wannemacher
  • Publication number: 20090095200
    Abstract: 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: Application
    Filed: October 10, 2007
    Publication date: April 16, 2009
    Inventors: James A. Belmont, Elizabeth G. Burns
  • Publication number: 20090095942
    Abstract: 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: Application
    Filed: September 9, 2005
    Publication date: April 16, 2009
    Inventors: Shuichiro Yamaguchi, Kenichi Hamazaki, Yasumasa Mochizuki, Takeshi Shimomura, Masahide Ozaki, Satoru Yatabe, Noboru Oyama
  • Publication number: 20090098176
    Abstract: 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: Application
    Filed: September 10, 2008
    Publication date: April 16, 2009
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael N. Helmus, Yixin Xu, Barron W. Tenney, Paul L. Valint, Shrirang V. Ranade
  • Patent number: 7517477
    Abstract: 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: Grant
    Filed: April 6, 2006
    Date of Patent: April 14, 2009
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Ping Liu, Beng S. Ong
  • Patent number: 7517476
    Abstract: 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: Grant
    Filed: April 6, 2006
    Date of Patent: April 14, 2009
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Ping Liu, Beng S. Ong
  • Publication number: 20090088484
    Abstract: 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: Application
    Filed: April 18, 2008
    Publication date: April 2, 2009
    Inventor: Dillip K. Mohanty
  • Patent number: 7510739
    Abstract: 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: Grant
    Filed: April 21, 2005
    Date of Patent: March 31, 2009
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
  • Patent number: 7511113
    Abstract: 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: Grant
    Filed: March 17, 2004
    Date of Patent: March 31, 2009
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Dawn D. Dominguez
  • Publication number: 20090069435
    Abstract: 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: Application
    Filed: August 11, 2008
    Publication date: March 12, 2009
    Inventor: Jeffery A. Whiteford
  • Patent number: 7497975
    Abstract: 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: Grant
    Filed: February 18, 2008
    Date of Patent: March 3, 2009
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Tsukasa Maruyama, Yuko Sekine
  • Publication number: 20090051281
    Abstract: A polymer compound for an organic electroluminescence device, which has a halogen element content of 50 ppm by mass or less.
    Type: Application
    Filed: February 14, 2007
    Publication date: February 26, 2009
    Applicant: IDEMITSU KOSAN CO., LTD
    Inventors: Tetsuya Inoue, Hirofumi Kondo
  • Publication number: 20090050014
    Abstract: 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: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Applicant: SENSIENT COLORS INC.
    Inventors: Puthalath K. Sujeeth, John P. Kane, Daniel A. Ouellette, Mark Ulrich, Vincent Shing, Michael Bogomolny
  • Patent number: 7494720
    Abstract: 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: Grant
    Filed: November 4, 2003
    Date of Patent: February 24, 2009
    Assignee: Cambridge Display Technology Limited
    Inventors: Jeremy Burroughes, Richard Friend, Clare Foden
  • Publication number: 20090045137
    Abstract: 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: Application
    Filed: July 15, 2008
    Publication date: February 19, 2009
    Inventors: Reinhold Klipper, Michael Schelhaas, Stefan Neumann, Wolfgang Zarges
  • Publication number: 20090048410
    Abstract: 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: Application
    Filed: May 19, 2008
    Publication date: February 19, 2009
    Inventors: Darren H. Wakefield, David B. Rozema, Jon A. Wolff, James E. Hagstrom
  • Patent number: 7491408
    Abstract: 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: Grant
    Filed: December 13, 2002
    Date of Patent: February 17, 2009
    Assignee: NOF Corporation
    Inventors: Atsuhiko Ogura, Shinji Tanaka, Yoshikazu Nakashima, Shigeru Kitano
  • Publication number: 20090036622
    Abstract: 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: Application
    Filed: February 22, 2006
    Publication date: February 5, 2009
    Applicant: SUMATION CO. LIMITED
    Inventors: Matthew L. Marrocco, Virgil J. Lee, Farshad J. Motamedi
  • Publication number: 20090035535
    Abstract: 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: Application
    Filed: June 27, 2008
    Publication date: February 5, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Naotaka Wachi, Shinji Fujimoto, Koutaro Okabe
  • Publication number: 20090032774
    Abstract: 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: Application
    Filed: August 3, 2007
    Publication date: February 5, 2009
    Inventors: Marie Angelopoulos, Bruce K. Furman
  • Patent number: 7485740
    Abstract: 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: Grant
    Filed: January 26, 2006
    Date of Patent: February 3, 2009
    Assignee: North Carolina State University
    Inventors: Bruce M. Novak, Hong-Zhi Tang
  • Publication number: 20090023890
    Abstract: 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: Application
    Filed: May 19, 2008
    Publication date: January 22, 2009
    Inventors: Sean D. Monahan, Darren H. Wakefield, David B. Rozema, Lori Higgs, Jon A. Wolff, James E. Hagstrom
  • Patent number: 7479535
    Abstract: 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: Grant
    Filed: February 25, 2003
    Date of Patent: January 20, 2009
    Assignee: Guilford Pharmaceuticals, Inc.
    Inventors: Keith Branham, Mahesh V. Chaubal, James P. English, Donna Hall, Zhong Zhao
  • Publication number: 20090018040
    Abstract: 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: Application
    Filed: February 3, 2006
    Publication date: January 15, 2009
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Renee A. Eveland, Matthew D. Gieselman, Douglas M. Barr, Gregory R. McCullough, John K. Pudelski
  • Patent number: 7476765
    Abstract: 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: Grant
    Filed: July 11, 2006
    Date of Patent: January 13, 2009
    Assignee: Los Alamos National Security, LLC
    Inventors: Hsing-Lin Wang, Wenguang Li
  • Publication number: 20090011946
    Abstract: 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: Application
    Filed: December 20, 2005
    Publication date: January 8, 2009
    Applicant: Kalinex
    Inventors: Arun Majumdar, Mark O. Trulson
  • Publication number: 20090001802
    Abstract: 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: Application
    Filed: May 21, 2008
    Publication date: January 1, 2009
    Inventors: Mamadou S. Diallo, Jean Frechet, Emine Boz
  • Publication number: 20090004133
    Abstract: 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: Application
    Filed: October 12, 2007
    Publication date: January 1, 2009
    Inventors: Hector F. DeLuca, Katarzyna M. Barycka, Lori Plum, Julia Zella, Margaret Clagett-Dame
  • Publication number: 20080319097
    Abstract: 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: Application
    Filed: August 26, 2005
    Publication date: December 25, 2008
    Applicant: Versamatrix A/S
    Inventors: Ib Johannsen, Patrik Gavelin
  • Publication number: 20080317704
    Abstract: 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: Application
    Filed: August 18, 2008
    Publication date: December 25, 2008
    Inventors: Hitoshi Obata, Hidehisa Kawahara, Takashi Tomita
  • Publication number: 20080317699
    Abstract: Dendrimers comprising N-acyl urea terminal moieties are described herein. The dendrimers can be used, for example, in the treatment of arthritis.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 25, 2008
    Inventors: Luis Z. Avila, Robert J. Miller, Lauren Elizabeth Young, Rajesh Vasant Kamath
  • Publication number: 20080315757
    Abstract: 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: Application
    Filed: December 18, 2006
    Publication date: December 25, 2008
    Applicants: Cambridge Display Technology Limited, CDT Oxford Limited
    Inventors: Mary McKiernan, Natasha Conway, Richard Wilson
  • Patent number: 7468149
    Abstract: 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: Grant
    Filed: December 28, 2005
    Date of Patent: December 23, 2008
    Assignee: Council of Scientific and Industrial Research
    Inventors: Srinivasan Palaniappan, Chellachamy Anbalagan Amarnath
  • Publication number: 20080309229
    Abstract: 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: Application
    Filed: December 18, 2006
    Publication date: December 18, 2008
    Applicants: Cambridge Display Technology Limited, CDT Oxford Limited
    Inventors: Annette Steudel, Nalinkumar Lallubhai Patel, Jonathan Pillow, Mary McKiernan, Sophie Heidenhain, Natasha Conway
  • Patent number: 7465782
    Abstract: 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: Grant
    Filed: July 13, 2005
    Date of Patent: December 16, 2008
    Assignee: E.I Du Pont De Nemours & Company
    Inventor: Kiu-Seung Lee
  • Patent number: 7465781
    Abstract: 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: Grant
    Filed: July 13, 2005
    Date of Patent: December 16, 2008
    Assignee: E.I. du Pont de Nemours & Company
    Inventor: Kiu-Seung Lee
  • Publication number: 20080305038
    Abstract: 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: Application
    Filed: February 15, 2006
    Publication date: December 11, 2008
    Applicants: LUDWIG-MAXIMILIANS-UNIVERSITÄT, TECHNISCHE UNIVERSITÄT MÜNCHEN
    Inventors: Joseph Rosenecker, Carsten Rudolph, Christian Plank, Markus Elfinger
  • Publication number: 20080299557
    Abstract: The present invention provides copolymers that facilitate nucleic acid analysis, compositions that comprise such copolymers, and methods for making or using such copolymers.
    Type: Application
    Filed: February 6, 2006
    Publication date: December 4, 2008
    Applicant: QIAGEN GmbH
    Inventors: Ralf Himmelreich, Roland Fabis, Christoph Erbacher, Sabine Werner, Bernd Springer
  • Publication number: 20080300360
    Abstract: 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: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Inventors: Hyman Ralph Lubowitz, Thomas Karl Tsotsis
  • Patent number: 7455792
    Abstract: 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: Grant
    Filed: February 19, 2003
    Date of Patent: November 25, 2008
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Takuji Yoshimoto, Hiroyoshi Fukuro, Hitoshi Furusho, Akira Yanagimoto
  • Patent number: 7452959
    Abstract: 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: Grant
    Filed: March 17, 2004
    Date of Patent: November 18, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Dawn D. Dominguez
  • Publication number: 20080281070
    Abstract: 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: Application
    Filed: May 19, 2006
    Publication date: November 13, 2008
    Applicant: Cornell Research Foundation, Inc.
    Inventors: Dotsevi Y. Sogah, Sarav B. Jhaveri
  • Publication number: 20080277333
    Abstract: 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: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Inventors: Andrew Patrick Murphy, Balasingam Murugaverl, Robert Lee Riley
  • Publication number: 20080281036
    Abstract: 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: Application
    Filed: July 5, 2005
    Publication date: November 13, 2008
    Applicant: SAKATA INX CORP.
    Inventors: Kazunori Ito, Hideo Shibata, Naoyuki Kitaoka, Akira Hayashi, Tomohiro Kita
  • Publication number: 20080281044
    Abstract: 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: Application
    Filed: June 17, 2008
    Publication date: November 13, 2008
    Inventors: Sean D. Monahan, Lori Higgs, Darren H. Wakefield, David B. Rozema, Jon A. Wolff, James E. Hagstrom
  • Patent number: 7449494
    Abstract: 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: Grant
    Filed: October 6, 2004
    Date of Patent: November 11, 2008
    Assignee: SurfaTech Corporation
    Inventor: Anthony J. O'Lenick, Jr.
  • Publication number: 20080269456
    Abstract: 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: Application
    Filed: March 24, 2008
    Publication date: October 30, 2008
    Inventors: Joerg Lahann, Yaseen Elkasabi
  • Patent number: 7442328
    Abstract: 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: Grant
    Filed: March 7, 2006
    Date of Patent: October 28, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Nan Tseng, Li-Duan Tsai
  • Publication number: 20080262192
    Abstract: 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: Application
    Filed: December 13, 2005
    Publication date: October 23, 2008
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventor: Atsuro Yoneda