From Sulfur-containing Reactant Patents (Class 528/373)
  • Publication number: 20080261102
    Abstract: A process for preparing a polymer comprising sulfonating a perfluorocyclobutane polymer with a sulfonating agent to form a sulfonated perfluorocyclobutane polymer, wherein the sulfonating agent comprises oleum, SO3 or a combination thereof is provided. A process for preparing proton exchange membranes and fuel cells comprising the proton exchange membrane are also provided.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 23, 2008
    Applicant: GENERAL MOTORS CORPORATION
    Inventors: Timothy J. Fuller, Michael Schoeneweiss
  • Patent number: 7439275
    Abstract: Anion-conducing polymers and membranes with enhanced stability to aqueous alkali include a polymer backbone with attached sulfonium, phosphazenium, phosphazene, and guanidinium residues. Compositions also with enhanced stability to aqueous alkali include a support embedded with sulfonium, phosphazenium, and guanidinium salts.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: October 21, 2008
    Assignee: Los Alamos National Security, LLC
    Inventors: Bryan S. Pivovar, David L. Thorn
  • Publication number: 20080251768
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include (i) an intrinsically conductive polymer having at least one monomer unit which is a pyridine-fused heteroaromatic and (ii) a fluorinated acid polymer.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Inventors: CHE-HSIUNG HSU, Hjalti Skulason
  • Publication number: 20080255299
    Abstract: The invention provides a polymer composition which contains a bound heat accumulating phase change material which is in the form of a solid or a paste. This composition is so stable and has such a solid form that it may be easily heated up to 180 (200)° C. and mechanically treated without changing the structure and the composition thereof and without losing its phase change materials. After being heated up the heat emission of this composition is steady and consequently the composition has a long radiation time. Furthermore the polymer composition is easy to produce and has due to its special properties a lot of applications.
    Type: Application
    Filed: October 5, 2006
    Publication date: October 16, 2008
    Inventors: Herman Reezigt, Bartholomeus Wilhelmus Maria Rouwers, Hendrik Glastra
  • Publication number: 20080249281
    Abstract: The present invention provides polymers which substantially degrade in the presence of one or more triggers, preferably light energy or hydrogen peroxide, but does not substantially degrade in the absence of one or more triggers.
    Type: Application
    Filed: May 8, 2008
    Publication date: October 9, 2008
    Applicant: California Institute of Technology
    Inventors: Mark E. Davis, Kenneth W. Wright, Ryan K. Zeidan
  • Patent number: 7432340
    Abstract: Partially and fully fluorinated alkyl substituted thienothiophene monomers (and polymers thereof) wherein the monomers are represented by the formula: wherein R is a partially or fully fluorinated primary, secondary or tertiary alkyl having from 1 to 8 carbon atoms; and X and X? are independently selected from the group consisting of H, F, Cl, Br, I, MgCl, MgBr, Mgl, Sn(R?)3, CH?CHR?, —OR?, —COOR?, —S—COR?, —B(OR?)2, —COR?, —C?CH, and a polymerizable cyclic pi-conjugated carbon-ring structure optionally comprising S, N or O heteroatoms; wherein R? is a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms, and R? is H or a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: October 7, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Steffen Zahn, Gauri Sankar Lal, William Franklin Burgoyne, Jr., Kristen Elaine Minnich, Andrew Francis Nordquist, Lloyd Mahlon Robeson, Francis Joseph Waller
  • Patent number: 7432339
    Abstract: A method for producing polyphenylene sulfide (PPS) polymer, including polymerizing reactants in a reaction mixture in a vessel to form PPS polymer in the vessel, measuring values of operating variables of the vessel and/or PPS process, and determining the amount of quench fluid to add to the vessel based on the values of the operating variables. The technique may rely on the vapor liquid equilibrium (VLE) of the mixture to calculate the concentration of water existing in the reactor prior to quench, and accounts for the effectiveness of the upstream dehydration process and in the amount of water produced during the polymerization. The technique is a striking improvement over the trial-and-error estimation of the amount of quench water based on human operating experience, and avoids direct measurements of the existing water concentration in the reactor. The result is improved control of PPS particle size and other properties.
    Type: Grant
    Filed: December 24, 2007
    Date of Patent: October 7, 2008
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Kent Edward Mitchell
  • Publication number: 20080242833
    Abstract: The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 2, 2008
    Applicant: Arkema Inc.
    Inventors: James Goldbach, Robert Umpleby
  • Publication number: 20080242806
    Abstract: Water-soluble fluorescent particles are formed in a simple process. A mixture comprising a solvent, water, a fluorescent polymer dissolved in the solvent, and an amphiphilic molecule is provided. The fluorescent polymer comprises a hydrophobic segment. The amphiphilic molecule comprises hydrophilic and hydrophobic segments. The solvent is removed from the mixture to allow the fluorescent polymer and the amphiphilic molecule to entangle in the presence of water, thus forming the water-soluble fluorescent particles. In the formed particles, the hydrophilic segments of the amphiphilic molecule are entangled with one another, and the hydrophobic segments of the fluorescent polymer and amphiphilic molecule are entangled with one another. The amphiphilic molecule encapsulates the fluorescent polymer and at least some of the hydrophilic segments are exposed to render the particle soluble in water.
    Type: Application
    Filed: August 30, 2006
    Publication date: October 2, 2008
    Inventors: Zhikuan Chen, Xu Li
  • Publication number: 20080227168
    Abstract: The present invention includes compositions and methods to deliver carbon nanostructures that include agents for delivery to cells, wherein the carbon nanostructure and the agent are made soluble by coating the carbon nanostructure with one or more polymers, e.g., low band gap conductive polymers.
    Type: Application
    Filed: February 16, 2008
    Publication date: September 18, 2008
    Applicants: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, MEDICAL NANOTECHNOLOGIES, INC.
    Inventors: Tanja Kmecko, Gareth Hughes, Rockford K Draper, Robert M. Burgess, Austin David-Edmiston Swafford
  • Patent number: 7425604
    Abstract: Electrically conductive preformed compositions comprising sulfur-containing polymers in shaped form and the use of preformed compositions in shaped form to seal apertures are disclosed. The preformed compositions can be used to seal an aperture having EMI/RFI shielding effectiveness.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: September 16, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Michael A. Cosman, Adrian Balladares
  • Publication number: 20080221300
    Abstract: This invention provides a cost effective process and new Janus dendrimers where at least two dendrons are attached at the core (with or without a connector group) and where at least two of the dendrons have different functionality. Preferred are those Janus dendrimers where at least one dendron is a PEHAM dendron. Thus these Janus dendrimers are heterobifunctional in character and use unique ligation chemistry with single site functional dendrons, di-dendrons and multi-dendrons. Also included are Janus dendrons which maybe used as intermediates to make the Janus dendrimers or to further react with another reactive moiety.
    Type: Application
    Filed: March 27, 2006
    Publication date: September 11, 2008
    Inventors: Donald A. Tomalia, Veera Reddy Pulgam, Douglas R. Swanson, Baohua Huang
  • Patent number: 7423110
    Abstract: A polysulfone composition is provided having a total luminous light transmittance of 84% or greater when measured on 0.1 inch thick specimens using ASTM D-1003. The specimens also meet at least one of the following two conditions: 1) a yellowness index (YI) of less than about 5.0 as measured according to ASTM D-1925 on 0.1 inch thick specimens, or 2) a color factor (CF) of less than about 25, wherein CF is defined by the following equation: CF=270[(x+y)sample?(x+y)air]/t, wherein x and y are chromaticity coordinates measured in transmittance mode and t is sample thickness in inches. Another polysulfone composition is provided comprising a polysulfone, an organic phosphorous-containing melt stabilizer, and at least one of the following additives: a blue to violet dye, and an organic optical brightener. The polysulfone composition of the present invention is used to form transparent molded articles such as ophthalmic lenses.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: September 9, 2008
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventor: Mohammad Jamal El-Hibri
  • Publication number: 20080203012
    Abstract: A membrane is provided that is formed from a composition. The composition comprises a polyarylene ether polymer or copolymer comprising a zwitterion; or comprises a polyarylene polymer or copolymer comprising a zwitterion.
    Type: Application
    Filed: February 22, 2007
    Publication date: August 28, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gary William Yeager, Daniel Steiger, Joseph Anthony Suriano, Yanshi Zhang, Sharon Oba
  • Patent number: 7417109
    Abstract: Disclosed are novel polymers derivatized with at least one —NOx group per 1200 atomic mass unit of the polymer. X is one or two. In one embodiment, the polymer is an S-nitrosylated polymer and is prepared by reacting a polythiolated polymer with a nitrosylating agent under conditions suitable for nitrosylating free thiol groups. The polymers of the present invention can be used to coat medical devices to deliver nitric oxide in vivo to treatment sites.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: August 26, 2008
    Assignee: Duke University
    Inventors: Jonathan S. Stamler, Eric J. Toone, Richard S. Stack
  • Publication number: 20080200084
    Abstract: A composition for the manufacture of a circuit material comprises a solvent composition having a boiling point below 160° C.; an epoxy compound having an average epoxy functionality of greater than one, an epoxy equivalent weight of less than about 6,000 Daltons, a softening point of less than about 160° C., and solubility in the solvent composition; an aromatic polymer co-curable with the epoxy compound, and soluble in the solvent composition; and, optionally, a catalyst for the polymerization of epoxy groups. The composition for the manufacture of a circuit material can further comprise a filler additive and/or a flame retardant additive.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 21, 2008
    Inventors: Richard O. Angus, Carlos L. Barton, David H. Guo
  • Publication number: 20080191201
    Abstract: Disclosed herein is a composition containing hetero arylene or arylene showing a p-type semiconductor property in addition to thiophene showing a p-type semiconductor property and thiazole rings showing a n-type semiconductor property at a polymer main chain, an organic semiconductor polymer containing the composition, an organic active layer containing the organic semiconductor polymer, an organic thin film transistor (OTFT) containing the organic active layer, an electronic device containing the OTFT, and a method of preparing the same. The composition of example embodiments, which is used in an organic semiconductor polymer and contains thiazole rings, may exhibit increased solubility to an organic solvent, coplanarity, processibility and an improved thin film property.
    Type: Application
    Filed: January 9, 2008
    Publication date: August 14, 2008
    Inventors: Bang Lin Lee, Eun Kyung Lee, Joo Young Kim, Kook Min Han
  • Patent number: 7411034
    Abstract: Provided are methods of preparing sulfide-containing polythiol including (a) introducing asym-dichloroacetone together with a polymercaptan to form a reaction product; and (b) introducing the reaction product of (a) with a material chosen from polymercaptoalkylsulfide, polymercaptan and mixtures thereof.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: August 12, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Nina Bojkova, Robert A. Smith
  • Patent number: 7402651
    Abstract: Macromolecular compounds having a core-shell structure are described. Also described is a process for preparing such macromolecular compounds, and their use as semiconductors in electronic structural elements.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: July 22, 2008
    Assignee: H.C. Starck GmbH & Co. KG
    Inventors: Stephan Kirchmeyer, Sergei Ponomarenko, Aziz Muzafarov
  • Patent number: 7399433
    Abstract: The present invention demonstrates the synthesis by electropolymerization of a new stable n-doping conjugated polymer poly(3,4-difluorothiophene) that may easily be electrochemically characterized.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: July 15, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David J. Irvin, David L. Witker, John D. Stenger-Smith, Jennifer A. Irvin
  • Patent number: 7396899
    Abstract: The present invention provides a sulfonium salt of the formula (Ia) a polymeric compound comprising a structural unit of the formula (Ib) and a chemical amplification type positive resist composition comprising (A) an acid generator comprising at least one compound selected from the group consisting of a sulfonium salt of the formula (Ia), a polymeric compound comprising a structural unit of the formula (Ib), and a sulfonium salt of the formula (Ic); and (B) resin which contains a structural unit having an acid labile group and which itself is insoluble or poorly soluble in an alkali aqueous solution but becomes soluble in an alkali aqueous solution by the action of an acid.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: July 8, 2008
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Airi Yamada, Yasunori Uetani, Akira Kamabuchi
  • Patent number: 7396900
    Abstract: A composition for making a high-refractive-index resin contains a polythiol compound and a compound containing at least two iso(thio)cyanato groups, the polythiol compound having a dithioacetal, dithioketal, orthotrithioformic ester, or orthotetrathiocarbonic ester skeleton. The molar ratio of the mercapto group to the iso(thio)cyanato group in the composition is greater than 1.0 but not more than 3.0. A method for making a resin by curing the composition, a resin prepared by curing the composition, an optical element made from the resin, and a lens made from the optical element are also provided.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: July 8, 2008
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Mamoru Tanaka, Shigetoshi Kuma, Munehito Funaya, Seiichi Kobayashi
  • Patent number: 7396897
    Abstract: The present disclosure relates to the cosmetic use of poly-N-?- and -N-?-lysine and ornithine compounds comprising a thiol function. The disclosure is also directed towards poly-N-?- and -N-?-lysine and ornithine compounds comprising a thiol function and also to cosmetic compositions containing the disclosed compounds.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: July 8, 2008
    Assignee: L'Oreal S.A.
    Inventors: Michel Philippe, Hervé Andrean
  • Patent number: 7396895
    Abstract: Disclosed is a process for preparing branched polyarylene ether polymers by (A) providing a reaction mixture comprising (i) a polyfunctional phenol compound of the formula Ar(OH)x wherein x?3 and wherein Ar is an aryl moiety or an alkylaryl moiety, provided that when Ar is an alkylaryl moiety at least three of the —OH groups are bonded to an aryl portion thereof, (ii) a compound of the formula wherein m is 0 or 1, Y and Y? each, independently of the other, is fluorine or chlorine, and A is as defined herein, (iii) a compound of the formula wherein B is as defined herein, and (iv) a carbonate base; and (B) heating the reaction mixture and removing generated water from the reaction mixture, thereby effecting a polymerization reaction. Also disclosed are polymers prepared by this process and imaging members containing these polymers.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: July 8, 2008
    Assignee: Xerox Corporation
    Inventor: Timothy P. Bender
  • Publication number: 20080125570
    Abstract: Provided is a thioether-functional, oligomeric polythiol having pendant hydroxyl functional groups, prepared by reacting together: (a) a compound having at least two thiol functional groups; (b) a hydroxyl functional compound having triple bond functionality; and (c) a compound having at least two double bonds. Further provided is a thioether-functional, oligomeric polythiol having pendant hydroxyl functional groups, prepared by reacting together: (a) a compound having at least two thiol functional groups, prepared by reacting together: (1) a dithiol, and (2) a compound having at least two double bonds; (b) a hydroxyl functional compound having triple bond functionality; and optionally (c) an additional compound having at least two double bonds, which may be the same as or different from the compound (2). Optical articles prepared from the thioether-functional, oligomeric polythiols are also provided.
    Type: Application
    Filed: May 4, 2007
    Publication date: May 29, 2008
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventor: Nina V. Bojkova
  • Publication number: 20080125525
    Abstract: Provided is a thioether-functional, oligomeric polythiol having pendant hydroxyl functional groups, prepared by reacting together: (a) a compound having at least two thiol functional groups; and (b) a hydroxyl functional compound having triple bond functionality. Also provided are optical articles prepared from the reaction product of: (A) a reactive compound having functional groups that are reactive with active hydrogens; (B) a thioether-functional, oligomeric polythiol; and, optionally, (C) a compound different from (B) containing active hydrogens.
    Type: Application
    Filed: May 4, 2007
    Publication date: May 29, 2008
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventor: Nina V. Bojkova
  • Patent number: 7378039
    Abstract: A process for preparing an aqueous or non-aqueous solution or dispersion of a polythiophene or thiophene copolymer, containing structural units according to formula (I): in which R1 and R2 independently of one another represent hydrogen or a C1-5-alkyl group or together form an optionally substituted C1-5-alkylene residue, comprising the step of: preparing the polythiophene or thiophene copolymer with an initiator in a reaction is medium in the presence of polyanions under oxidizing or reducing conditions under an inert atmosphere such that when said initiator is added less than 3 mg of oxygen per litre of the reaction medium is present in the reaction medium; an aqueous or non-aqueous solution or dispersion prepared therewith; the use of an aqueous or non-aqueous dispersion or solution comprising the aqueous or non-aqueous solution or dispersion of a polythiophene or thiophene copolymer for coating an object; a printable paste containing the aqueous or non-aqueous solution or dispersion of a polythiophen
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: May 27, 2008
    Assignee: Agfa-Gevaert
    Inventors: Frank Louwet, Bert Groenendaal
  • Patent number: 7375176
    Abstract: A rigid, rod liquid crystal polymer includes a poly(phenylene sulfonic acid).
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 20, 2008
    Inventors: Morton H. Litt, Sergio Granados-Focil
  • Publication number: 20080103286
    Abstract: A polymer of the formula/structure wherein R, R?, and R? are, for example, a suitable hydrocarbon, a halogen (halide) a hetero-containing group, or mixtures thereof; and n represents the number of repeating groups.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 1, 2008
    Inventors: Beng S. Ong, Hualong Pan, Yuning Li, Yiliang Wu, Ping Liu
  • Patent number: 7361728
    Abstract: The present invention relates to a class of conducting oligomers and polymers and to a method for the preparation of the same. The conducting oligomers and polymers contain an end-capping group, which is non-electrically conductive and contains at least one branch point. The branched end-capping groups are made by a method that first substitutes the branched group on the heteroaromatic monomer, particularly at the “2” position on these monomers. In a second step, the end-capping intermediate is co-polymerized with one or more additional heteroaromatic monomers to form capped conducting oligomers and polymers.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: April 22, 2008
    Assignee: TDA Research, Inc.
    Inventors: Brian J. Elliott, William W. Ellis, Silvia D. Luebben, Shawn A. Sapp, Chieh-Hui Chang, Raechelle A. D'Sa
  • Patent number: 7361729
    Abstract: Sulfonated polymers are made by the direct polymerization of a sulfonated monomer to form the sulfonated polymers. The types of sulfonated polymers may include polysulfones or polyimides. The sulfonated polymers can be formed into membranes that may be used in proton exchange membrane fuel cells or as ion exchange membranes. The membranes formed from the sulfonated polymers exhibit improved properties over that of Nafion®. A heteropoly acid may be added to the sulfonated polymer to form a nanocomposite membrane in which the heteropoly acid is highly dispersed. The addition of a heteropoly acid to the sulfonated polymer increases the thermal stability of the membrane, enhances the conductivity above 100° C., and reduces the water uptake of the membrane.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 22, 2008
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: James E. McGrath, Michael Hickner, Feng Wang, Yu-Seung Kim
  • Patent number: 7358326
    Abstract: Multifunctional 3,4-alkylenedioxythiophene derivatives represented by formula (I) are described, In formula (I), n and m each independently of each other, and independently for each o, are an integer from 1 to 5, and o is 3 or 4. The groups R1, R2, R3 and R4 are independently of each other and independently for each o, selected from, for example, hydrogen, halogen and optionally substituted linear or branched C1-C20-alkyl. The group R— of formula (I) may be, independently for each o, hydrogen or a thiophene represented by the following formula (II), in which m, n, R1, R2, R3 and R4 are as described in formula (I). The group X— of formula (I) is a polyvalent linking unit (e.g., a triphenylamine radical). Also described are electrically conductive oligomers and polymers comprising the multifunctional 3,4-alkylenedioxythiophene derivatives of the present invention as a repeating or crosslinking unit.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: April 15, 2008
    Assignee: H.C. Starck GmbH
    Inventors: Helmut-Werner Heuer, Rolf Wehrmann
  • Patent number: 7354989
    Abstract: A polymerizable composition and a manufacturing method thereof are provided, in which the composition is capable of meeting requirements of overcoming decrease in production yield of a resin composed of a thioepoxy compound, the decrease being caused by variations in refractive index, hue, and optical strain. In a polymerizable composition containing a compound having at least one structure represented by the above formula (where R1 represents a hydrocarbon having 1 to 10 carbon atoms, R2, R3, and R4 each represent a hydrocarbon group having 1 to 10 carbon atoms or a hydrogen atom.), the total of a thioepoxy compound A, which has at least one structure represented by formula (2) and at least one structure represented by formula (3), and a thioepoxy compound B, which has at least one structure represented by formula (4) and at least one structure represented by formula (3), is 4 mass percent or less with respect to the total mass of the polymerizable composition.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: April 8, 2008
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroyuki Morijiri, Seiichi Kobayashi, Chitoshi Shimakawa, Akinori Ryu, Nobuo Kawato
  • Patent number: 7341801
    Abstract: Electrolyte capacitors containing certain polythiophenes are described. More particularly, the polythiophenes have backbones containing repeating units of the following general formula (I) and/or repeating units of the following general formula (II), wherein A is, for example, a C1-C5-alkylene radical, R is, for example, a C1-C18-alkyl radical, and x is an integer from 0 to 8. Also described are dispersions comprising such polythiophenes, and the use of such polythiophenes or dispersions thereof for producing conductive layers.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: March 11, 2008
    Assignee: H.C. Starck GmbH
    Inventors: Knud Reuter, Udo Merker, Friedrich Jonas
  • Patent number: 7341759
    Abstract: A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided. The electrically conductive polymer has the following formula: where m is 1, 2, or 3; R is a hydroxysuccinimidyl group, a hydroxyphthalimidyl group, or a pentafluorophenolyl group; and n is zero or an integer.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: March 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-hoe Cha, Young Choi, Jung-im Han, Geun-bae Lim
  • Patent number: 7332223
    Abstract: This invention presents polymers and copolymers comprising repeating units of thieno[3,4-b]thiophene. Water-borne dispersions of such polymers and copolymers can be cast by conventional methods to provide uniform, thin films which possess utility in numerous electroactive applications including electrochromic displays, optically transparent electrodes and antistatic coatings. The compositions of this invention can be doped with conventional p-dopants or n-dopants. The invention also presents an aqueous process for preparing such compositions of matter.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: February 19, 2008
    Assignee: University of Connecticut
    Inventors: Gregory A. Sotzing, Francis Joseph Waller, Lloyd Mahlon Robeson
  • Patent number: 7321021
    Abstract: Impurities are removed from polythiophene by mixing a composition comprising polythiophene, water and an organic liquid at a temperature at which the organic liquid dissolves the polythiophene; allowing an aqueous phase to separate from an organic phase and recovering organic phase; adding water to recovered organic phase and mixing the resulting composition at a temperature at which the organic liquid dissolves the polythiophene; allowing an aqueous phase to separate from an organic phase and recovering organic phase; and allowing polythiophene solid to precipitate from recovered organic phase.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: January 22, 2008
    Assignee: Xerox Corporation
    Inventors: Alan Edward John Toth, Tamara Perez-Cruz
  • Patent number: 7321012
    Abstract: A method of manufacturing an intrinsically conductive polymer crosslinking at least a portion of an intrinsically conductive polymer precursor in the solid state, the swollen state, or combinations comprising at least one of the foregoing states, wherein the swollen state is characterized as being one wherein the intrinsically conductive polymer precursor increases in volume upon exposure to a solvent without completely dissolving in the solvent. In another embodiment, a method of manufacturing a pattern comprises casting a film of an intrinsically conductive polymer precursor on a substrate; and crosslinking at least a portion of the film by oxidation, wherein the crosslinking occurs in the solid state, the swollen state or combinations comprising at least one of the foregoing states.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: January 22, 2008
    Assignee: The University of Connecticut
    Inventor: Gregory A. Sotzing
  • Publication number: 20080004423
    Abstract: The application describes materials derived from keratin proteins in combination with polymers, either as intimate mixtures with water soluble polymers, or as chemically bound copolymers. The keratin protein is a specific keratin protein fraction, and is preferably intact, s-sulfonated and from the intermediate filament protein family. The application also describes the process for production of these materials.
    Type: Application
    Filed: September 13, 2004
    Publication date: January 3, 2008
    Inventors: Robert James Kelly, Mohammad Azam Ali, Alisa Dawn Roddick-Lanzilotta, Gillian Worth, Mohammad Mahbubul Hassan, John Robert McLaughlin, Alan John McKinnon
  • Publication number: 20070298355
    Abstract: There is disclosed a resist top coat composition, comprising at least a polymer that has an amino group or a sulfonamide group at a polymer end and that is represented by the following general formula (1); and a patterning process comprising: at least, a step of forming a photoresist film on a substrate; a step of forming a resist top coat on the photoresist film by using the resist top coat composition; a step of exposing the substrate; and a step of developing the substrate with a developer. There can be provided a resist top coat composition that makes it possible to provide more certainly rectangular and excellent resist patterns when a top coat is formed on a photoresist film; and a patterning process using such a composition.
    Type: Application
    Filed: June 11, 2007
    Publication date: December 27, 2007
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Yuji Harada, Jun Hatakeyama
  • Patent number: 7312300
    Abstract: A method for producing polyphenylene sulfide (PPS) polymer, including polymerizing reactants in a reaction mixture in a vessel to form PPS polymer in the vessel, measuring values of operating variables of the vessel and/or PPS process, and determining the amount of quench fluid to add to the vessel based on the values of the operating variables. The technique may rely on the vapor liquid equilibrium (VLE) of the mixture to calculate the concentration of water existing in the reactor prior to quench, and accounts for the effectiveness of the upstream dehydration process and in the amount of water produced during the polymerization. The technique is a striking improvement over the trial-and-error estimation of the amount of quench water based on human operating experience, and avoids direct measurements of the existing water concentration in the reactor. The result is improved control of PPS particle size and other properties.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: December 25, 2007
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Kent Edward Mitchell
  • Patent number: 7307138
    Abstract: A sulfonated aromatic polyether ketone of the formula (II) [Ar—O—Ar?—CO—Ar?—O—Ar—CO—Ar?—CO—] ??(II) in which from 1% to 100% of the O-phenylene-CO units are substituted with an SO3M group and sulfonated and unsulfonated O-phenylene-CO units can be in any desired sequence with respect to one another, the radicals Ar, Ar? and Ar? independently of one another are substituted or unsubstituted 1,2-, 1,3- or 1,4-phenylene rings, and M, taking into account the ionic valencies, comprises one or more elements selected from the following group: H, NR4+, where R is H or C1-C4-alkyl, or an alkali metal or alkaline earth metal or a metal from subgroup 8, and is preferably H, NR4+, Li, Na, K, Ca, Mg, Fe or Pt.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: December 11, 2007
    Inventors: Joachim Clauss, Gregor Deckers, Arnold Schneller, Helmut Witteler
  • Patent number: 7301705
    Abstract: The alicyclic compound of the present invention has a five- or more membered ring structure having an epithioethylene linkage and/or an epidithioethylene linkage, and has tow or more sulfur atoms in its molecule. Optical materials produced by curing the alicyclic compound or a composition containing the alicyclic compound by polymerization show high refractive index.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: November 27, 2007
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yuichi Yoshimura, Motoharu Takeuchi, Teruo Kamura
  • Patent number: 7301002
    Abstract: Improved sulfonated polyphenylene compositions, improved polymer electrolyte membranes and nanocomposites formed there from for use in fuel cells are described herein. The improved compositions, membranes and nanocomposites formed there from overcome limitations of Nafion® membranes.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: November 27, 2007
    Assignee: Sandia Corporation
    Inventors: Christopher J. Cornelius, Cy H. Fujimoto, Michael A. Hickner
  • Publication number: 20070270571
    Abstract: A method to prepare halogen end-capped polypyrroles, polyfurans or copolymeric pyrroles and furans is presented that readily occurs in a liquid state as well as a solid state without the need of a catalyst from a dihalopyrrole monomer, dihalofuran monomer, or a mixture of monomers. The polymerization mixture can be modified to include a monohalo-monomer for the introduction of a specific end-group or a polyhalo-monomer to form a branched polymer or network. An initiating species can be included in the polymerization mixture to avoid an induction period or to commence the polymerization process on demand. The electroactive polymers can be formed as a bulk material, a coating, or as a film.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 22, 2007
    Inventors: John Robert Reynolds, Ryan Michael Walczak
  • Patent number: 7294288
    Abstract: The invention relates to a process of preparing regioregular polymers, in particular head-to-tail (HT) poly-(3-substituted) thiophenes with high regioregularity, to novel polymers prepared by this process, to the use of the novel polymers as semiconductors or charge transport materials in optical, electrooptical or electronic devices including field effect transistors (FETs), electroluminescent, photovoltaic and sensor devices, to FETs and other semiconducting components or materials comprising the novel polymers, to a process of endcapping polymers and to endcapped polymers obtained thereof and their use in the above devices.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: November 13, 2007
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Guntram Koller, Birgit Falk, Clarissa Weller, Mark Giles, Iain McCulloch
  • Patent number: 7294684
    Abstract: The invention relates to a process and composition-of-matter for the preparation of dimeric and polymeric alkylphenol polysulfides based on paracumyl phenol for use in vulcanizable rubbers in which the additive is a dimeric or polymeric alkylphenol polysulfide non-nitrosamine-releasing additive based on paracumyl phenol.
    Type: Grant
    Filed: November 11, 2006
    Date of Patent: November 13, 2007
    Assignee: Dover Chemical Corporation
    Inventors: Donald R. Stevenson, Satyan Kodali, Duong N. Nguyen
  • Patent number: 7282733
    Abstract: An electronic device containing a polythiophene wherein R represents a side chain, m represents the number of R substituents; A is a divalent linkage; x, y and z represent, respectively, the number of Rm substituted thienylenes, unsubstituted thienylenes, and divalent linkages A, respectively, in the monomer segment subject to z being 0 or 1, and n represents the number of repeating monomer segments in the polymer or the degree of polymerization.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: October 16, 2007
    Assignee: Xerox Corporation
    Inventors: Beng S. Ong, Ping Liu, Lu Jiang, Yu Qi, Yiliang Wu
  • Publication number: 20070238853
    Abstract: A poly(phthalazinone sulfone) composition for molded articles having such characteristics as high temperature resistance, good electrical properties, good chemical and solvent resistance and toughness consists essentially of a polymer of formula (I): ?Cp-Z?x?A-Z?y ??(I) wherein Z is a bisphenyl sulfone moiety of formula: (II): A is a phthalazinone moiety of formula (III): Cp is A, as defined above, or a biphenol moiety of formula (IV): x is an integer of at least 1; y is an integer of at least 1; and x+y=n, where n is an integer such that the polymer has a weight average molecular weight of about 20,000 to about 170,000, the composition comprising less than 5%, by weight, of low molecular weight oligomers; and having a glass transition temperature (Tg) from 225 to 305° C.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 11, 2007
    Inventors: Allan S. Hay, Xi Gao Jian
  • Patent number: 7279244
    Abstract: The object of this invention is to provide a solid polymer electrolyte which is excellent in durability and of low cost, and membranes, solutions for electrode catalyst coating, membrane/electrode assemblies and fuel cells which use the electrolyte. According to this invention, there can be provided a fuel cell which comprises an electrode assembly having an electrode catalyst membrane formed therein, said catalyst membrane comprising a polymer electrolyte membrane held between an anode on one side of the principal plane of the electrolyte membrane and a cathode on the other side of the principal lane thereof, current collecting plates provided each independently in close contact, to the anode side and the cathode side of the electrode assembly, and electroconductive separators having gas supply passages to the anode and to the cathode provided on the outside surfaces of the current collecting plates.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: October 9, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Morishima, Tomoichi Kamo, Toshiyuki Kobayashi, Kenji Yamaga, Tohru Koyama