Solid Polymer Derived From Sulfur-containing Reactant Patents (Class 525/535)
-
Patent number: 7098266Abstract: Molding compositions comprise A) from 1 to 98.8% by weight of at least one polyarylene ether sulfone, B) from 1 to 98.8% by weight of at least one thermoplastic polyamide, C) from 0.1 to 60% by weight of at least one filler, D) from 0 to 40% by weight of at least one impact-modifying rubber, E) from 0 to 40% by weight of one or more different additives, and F) from 0.1 to 30% by weight of at least one thermotropic polymer, where the total of the percentages by weight of components A to F is 100%, wherein component B has a viscosity number of from 180 to 350 ml/g (measured in a 0.5% strength by weight solution in 96% strength by weight sulfuric acid to DIN 53 727).Type: GrantFiled: December 6, 2000Date of Patent: August 29, 2006Assignee: BASF AktiengesellschaftInventors: Martin Weber, Joachim Queisser
-
Patent number: 7087304Abstract: In accordance with the present invention, there are provided toughening agents which are useful for improving the performance properties of epoxy-based adhesive formulations. For example, epoxidized polysulfides have been found to be useful toughening agents of component level underfill adhesive compositions. Invention materials are liquid rubbers which provide improved fracture toughness while maintaining satisfactory capillary flow properties. Invention materials can be synthesized in neat (solventless) reactions from readily available low-cost raw materials and isolated in high yields. They have linear and branched telechelic structures with terminal epoxide functional groups, and are prepared without substantially increasing the molecular weight of the starting polysulfide materials. Invention materials are compatible with common epoxy formulations and may be used without purification. At low levels of incorporation, they provide adhesives that meet the minimum fracture toughness (Gq>2.Type: GrantFiled: February 19, 2003Date of Patent: August 8, 2006Assignee: Henkel CorporationInventors: John G. Woods, Yuhshi Luh, Mark M. Konarski
-
Patent number: 7084213Abstract: A polymer composition comprising chains of at least one aromatic polymer or a mixture thereof together with at least one chain linking component wherein the at least one aromatic polymer comprises polymer chains of number average molecular weight (Mn) in a first range and characterised by a polymer flow temperature, and having at least one reactive end group, and wherein the at least one chain linking component comprises at least two linking sites, characterised in that a plurality of the polymer chain end groups are adapted to react with the linking sites at chain linking temperature in excess of the polymer flow temperature to form linked polymer chains of number average molecular weight (Mn) in a second range which is in excess of the first range, substantially thermoplastic in nature; process for the preparation thereof; prepreg, composite or shaped product obtained therewith and the use thereof.Type: GrantFiled: August 20, 2001Date of Patent: August 1, 2006Assignee: Cytec Technology Crop.Inventors: Patrick Terence McGrail, Jeffrey Thomas Carter
-
Patent number: 7078496Abstract: The invention provides reagents and methods for conjugating a polymer specifically to the ?-amine of a polypeptide. The invention provides monofunctional, bifunctional, and multifunctional PEGs and related polymers having a terminal thioester moiety capable of specifically conjugating to the ?-amine of a polypeptide having a cysteine or histidine residue at the N-terminus. The invention provides reactive thioester-terminated PEG polymers that have suitable reactivity with an N-terminal cysteine or histidine residue of a polypeptide to produce an amide bond between the PEG molecule and the polypeptide.Type: GrantFiled: October 9, 2002Date of Patent: July 18, 2006Assignee: Nektar Therapeutics AL, CorporationInventors: Michael J. Roberts, Zhihao Fang
-
Patent number: 7071289Abstract: 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: GrantFiled: July 11, 2002Date of Patent: July 4, 2006Assignee: The University of ConnecticutInventor: Gregory Allen Sotzing
-
Patent number: 7067612Abstract: Preformed compositions comprising sulfur-containing polymers in shaped form and the use of preformed compositions in shaped form to seal apertures. In certain embodiments, the preformed compositions comprise a sulfur-containing polymer and a blend of fillers wherein the blend comprises substantially equal amounts of mica and polyamide.Type: GrantFiled: January 30, 2003Date of Patent: June 27, 2006Assignee: PRC-Desoto International, Inc.Inventor: Michael A. Cosman
-
Patent number: 7060756Abstract: A method is provided for obtaining crosslinked polymers having pendent sulfonic acid groups by crosslinking through the sulfonic acid groups or their precursors with aromatic crosslinkers or aromatic pendent crosslinking groups to form aromatic sulfones. Such crosslinked polymers may be used to make polymer electrolyte membranes (PEM's) that may be used in electrolytic cells such as fuel cells.Type: GrantFiled: November 24, 2003Date of Patent: June 13, 2006Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Michael A. Yandrasits, Steven J. Hamrock
-
Patent number: 7053150Abstract: Segmented water soluble polymers, containing a higher molecular weight segment linked to a lower molecular weight segment, are described. In one embodiment, the polymer segments are poly(ethylene glycol) segments. The segmented polymers are functionalized and are useful for conjugation to various moieties such as pharmacologically active substances. Also described are conjugates of such polymers and methods of their preparation.Type: GrantFiled: December 11, 2003Date of Patent: May 30, 2006Assignee: Nektar Therapeutics AL, CorporationInventors: Antoni Kozlowski, Xiaoming Shen, Michael D. Bentley, Zhihao Fang, Tony L. Sander
-
Patent number: 7048925Abstract: Polyacetals comprising a recurring units represented by a formula selected from the group consisting of formula (I) and (II): wherein A comprises at least one acetal group; B is selected from the group consisting of —CH—, —CH(CH3)—, CH2CH—, —CH2C(CH3)—, —CH(CH3)CH—, and —CHCH(CH3)CH(CH3)—; Z is selected from the group consisting of C(O)OR1, C(O)SR1, C(O)NR1R2, and VU; V is a linker group; U is selected from the group consisting of poly(ethyleneimine), poly(propyleneimine), poly(lysine), PAMAM dendrimer, octaamine dendrimer, hexadecaamine dendrimer, enhancer, and targeting receptor; R1 and R2 are each individually selected from the group consisting of hydrogen, C1 to C10 alkyl, and C6 to C10 aryl; D is a linkage selected from the group consisting of carboxylic amide, carboxylic ester, urea, and urethane; and G is selected from the group consisting of C4 to C20 alkyl, C6-C10 aryl, and —(OCH2CH2)n—, where n is in the range of 1 to about 250, are useful in nucleic acid delivery applications.Type: GrantFiled: August 28, 2003Date of Patent: May 23, 2006Assignee: Nitto Denko CorporationInventors: Sang Van, Nitnara Viroonchatapan, Shouping Ji, Lei Yu
-
Patent number: 7049374Abstract: This invention is related to heteroatom containing diamondoids (i.e., “heterodiamondoids”) which are compounds having a diamondoid nucleus in which one or more of the diamondoid nucleus carbons has been substitutionally replaced with a noncarbon atom. These heteroatom substituents impart desirable properties to the diamondoid. In addition, the heterodiamondoids are functionalized affording compounds carrying one or more functional groups covalently pendant therefrom. This invention is further related to polymerizable functionalized heterodiamondoids. In a preferred aspect of this invention the diamondoid nuclei are triamantane and higher diamondoid nuclei. In another preferred aspect, the heteroatoms are selected to give rise to diamondoid materials which can serve as n- and p-type materials in electronic devices can serve as optically active materials.Type: GrantFiled: July 16, 2003Date of Patent: May 23, 2006Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl
-
Patent number: 7037986Abstract: Disclosed herein is a high temperature composition comprising a polyarylene ether consisting essentially of plurality of structural units of the formula (I): wherein for each structural unit, each Q1 and Q2 are independently a halogen, a primary or secondary lower alkyl, a phenyl, a haloalkyl, an aminoalkyl, a hydrocarbonoxy, a halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms, and wherein the polyarylene ether has an intrinsic viscosity of less than or equal to about 0.15 deciliters per gram; a polyarylene sulfide; and glass fibers.Type: GrantFiled: November 22, 2004Date of Patent: May 2, 2006Assignee: General Electric CompanyInventor: Bo Liu
-
Patent number: 7033646Abstract: Compositions are provided comprising polyaniline (PANI) with poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAAMPSA) as the counterion (PANI/PAAMPSA) and an amount of poly(styrenesulfonic acid) (PSS) sufficient to reduce the conductivity of the composition relative to PANI/PAAMPSA. Invention compositions may further comprise poly(acrylamide) (PAM). Invention compositions are useful as high resistance buffer layers for use in electroluminescent devices (such as, organic light emitting diodes (OLEDs)).Type: GrantFiled: July 24, 2003Date of Patent: April 25, 2006Assignee: E. I. du Pont de Nemours and CompanyInventor: Chi Zhang
-
Patent number: 7008999Abstract: A method for forming a conjugated polymer which is doped by a dopant includes the steps of (a) adding a doping agent comprising a dopant moiety to a solution containing the conjugated polymer or a precursor thereof and, optionally, a second polymer, the dopant moiety being capable of bonding to the conjugated polymer, precursor thereof or the second polymer; (b) allowing the dopant moiety to bond to the conjugated polymer, precursor thereof or the second polymer to perform doping of the conjugated polymer, wherein the amount of doping agent added in step (a) is less than the amount required to form a fully doped conjugated polymer.Type: GrantFiled: April 7, 2004Date of Patent: March 7, 2006Assignee: Cambridge Display Technology Ltd.Inventors: Peter Kian-Hoon Ho, Ji-Seon Kim, Richard Henry Friend
-
Patent number: 7009031Abstract: The composition for optical materials of the present invention contains at least one compound represented by the following Formula 1: wherein R1, R2 and R3 are each independently C1–C10 hydrocarbyl or hydrogen; X1, X2 and X3 are each independently S, Se or Te; Y1, Y2 and Y3 are each independently —Sa—[(CH2)bS]cH, a is an integer from 0 to 2, b is an integer from 0 to 4, and c is an integer from 0 to 2, and a compound reactive to the compound of Formula 1. A resin produced by curing a composition containing the compound of Formula 1 by polymerization has a high refractive index, and suitable as various optical materials.Type: GrantFiled: September 4, 2001Date of Patent: March 7, 2006Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Yuichi Yoshimura, Motoharu Takeuchi
-
Patent number: 7001974Abstract: The present invention provides a process for producing plastic lenses, which are transparent, less colored, are not remarkably deteriorated in basic physical properties such as mechanical strength and impact resistance, and have higher refractive index and Abbe's number, and plastic lenses.Type: GrantFiled: May 30, 2003Date of Patent: February 21, 2006Assignee: HOYA CorporationInventor: Masahisa Kosaka
-
Patent number: 7001560Abstract: The present invention provides a resin composition suitable for molding a microscopic structure that has small cure shrinkage, good mold transfer properties and excellent properties for post-processing such as polishing processing and laser processing. Such a resin is a thermosetting resin composition comprising 95 to 35 wt % of a thermosetting resin and 5 to 65 wt % of organic filler having a particle size of 10 ?m or less. From such a resin, an ink ejecting apparatus having a microscopic structure, for example, a nozzle of a diameter of 30 ?m, is integrally molded.Type: GrantFiled: July 2, 2001Date of Patent: February 21, 2006Assignee: Cluster Technology Co., Ltd.Inventors: Minoru Adachi, Shoji Uesugi
-
Patent number: 6994788Abstract: A sulfonated aromatic polymer comprising the repeating structural unit of the formula I —O—Ar1(SO3R)n—C(CF3)2—Ar1(SO3R)n—O—Ar2—(X—Ar2)m—, ??(I) in which Ar1 and Ar2 are, independently of one another, divalent aromatic or heteroaromatic radicals which are optionally substituted by one or more monovalent organic groups which are inert under the conditions of use, R is hydrogen, an alkali metal or alkaline earth metal ion or an ammonium ion, n is an integer from 0 to 3, m is 0, 1 or 2 and X is a —CO—, —O—, —CpH2p—, —CpF2p— or —S— group, in which p is an integer from 1 to 10, is described. Membranes with high proton conductivities can be produced from this polymer and are preferably used in fuel cells.Type: GrantFiled: March 1, 2000Date of Patent: February 7, 2006Assignee: PEMEAS GmbHInventors: Alexander Dyck, Thomas Soczka-Guth
-
Patent number: 6995223Abstract: An aqueous dispersion of a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a polyanion; a preparation process therefor; its use for coating; a printing ink containing the aqueous dispersion; an electro-conductive layer containing a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a polyanion derived from an aqueous dispersion thereof; and an antistatic layer containing a copolymer of at least one 3,4-alkylenedioxy-thiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.Type: GrantFiled: December 17, 2002Date of Patent: February 7, 2006Assignee: Agfa-GevaertInventors: Bert Groenendaal, Frank Louwet
-
Patent number: 6987150Abstract: The invention provides secondary sulfonamide polymers, wherein some, most, or all of the sulfonamido protons have been replaced with a substituent other than hydrogen. The invention also provides methods for preparing such polymers as well as devices (e.g. composite membranes) incorporating such membranes.Type: GrantFiled: November 22, 2002Date of Patent: January 17, 2006Assignee: Osmonics, Inc.Inventors: Christopher J. Kurth, Steven D. Kloos, Jessica A. Peschl, Leonard T. Hodgins
-
Patent number: 6982303Abstract: A covalently cross-linked polymer or polymer membrane consisting of one or more polymers, which can bear the following functional groups (M=Hal(F, Cl, Br, I), OR, NR2; R=alkyl, hydroxyalkyl, aryl; (Me=H, Li, Na, K, Cs, or other metal cations or ammonium ions): a) precursors of cation exchange groups: SO2M and/or POM2 and/or COM b) sulphinate groups SO2Me and which can be covalently cross-linked using the following organic compounds: a) di-, tri- or oligofunctional haloalkanes or haloaromatics, which have been reacted with sulphinate groups SO2Me, whereby the following cross-linking bridges are present in the polymer/in the polymer blend/in the polymer membrane: (Y=cross-linking bridges, X=Hal (F, Cl, Br, I), OR, (CH2)x—; -arylene-; —(CH2)x-arylene-; CH2arylene-CH2—, x=3-12): polymer-SO2Y—SO2-polymer and/or b) compounds containing the following groups: Hal-(CH2)x—NHR, one side of which (Hal-) has been reacted with sulphinate groups SO2ME and the other side (—NHR) with SO2M groups, whereby the following cross-lType: GrantFiled: June 19, 2002Date of Patent: January 3, 2006Inventors: Jochen Kerres, Wei Zhang, Chy-Ming Tang, Thomas Häring
-
Patent number: 6936683Abstract: The present invention relates to a selected process for the preparation of polyarylenevinylenes. These conjugated polymers are suitable for electroluminescence applications.Type: GrantFiled: November 17, 1999Date of Patent: August 30, 2005Assignee: Covion Organic Semiconductor GmbHInventors: Dirk Vanderzande, Joanes Gelan, Albert van Breemen, Michael Van Der Borght, Anna Issaris, Laurence Lutsen, Margreet de Kok, Willi Kreuder
-
Patent number: 6894116Abstract: A toughener comprising a trithiocarbonate polymer having an epoxy end group is described which is utilized with various thermosettable polymers such as epoxy, polyurethane, and the like. A toughened composition is made by curing the thermosettable polymer and the toughener utilizing various curing agents.Type: GrantFiled: August 15, 2002Date of Patent: May 17, 2005Assignee: Noveon IP Holdings Corp.Inventors: John Ta-Yuan Lai, Carole Angele Lepilleur, Carl Duane Weber, David Richard Egan, Deborah Susan Filla
-
Patent number: 6887965Abstract: The present invention relates to polythiophenes, particularly regioregular head-to-tail poly(3-alkylthiophenes) (HT-PATs), block copolymers made therefrom, and their methods of formation. The present invention provides HT-PATs with well-defined, specific end-groups, functionalization of the defined HT-PATs, and incorporation of end group functionalized HT-PATs into block copolymers with structural polymers. The intrinsically conductive diblock and triblock copolymers, formed from the HT-PATs, have excellent conductivity and low polydispersities that are useful in a number of applications. The block copolymers of the present invention have been found to exhibit conductivities that range from a low of 10?8 S/cm for certain applications to as high as several hundred S/cm or more.Type: GrantFiled: August 4, 2003Date of Patent: May 3, 2005Assignee: Carnegie Mellon UniversityInventors: Richard D. McCullough, Jinsong Liu, Paul C. Ewbank, Elena E. Sheina
-
Patent number: 6884855Abstract: Sulfurized olefin compositions and components are prepared from sulfurizing high methylvinylidene polyisobutylene(s) having at least 25% methylvinylidene and a number average molecular weight in the range of about 120 to about 600, at suitable temperatures and pressures. The resulting sulfurized reaction product and polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.Type: GrantFiled: January 30, 2003Date of Patent: April 26, 2005Assignee: Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Frank Plavac
-
Patent number: 6878374Abstract: A polymer comprising recurring units represented by formula (I): wherein X is selected from the group consisting of C(O)OR1, C(O)SR1, C(O)NR1R2, and VZ, where R1 and R2 are each individually selected from the group consisting of hydrogen, C1 to C10 alkyl, and C6 to C10 aryl, where V is a labile linker group, and where Z is selected from the group consisting of poly(ethyleneimine), poly(propyleneimine), poly(lysine), PAMAM dendrimer, octaamine dendrimer, and hexadecaamine dendrimer; and wherein Y is selected from the group consisting of —(CH2)2—, —(CH2)2—O—(CH2)2—, —(CH2)2—O—(CH2)2—, and —(CH2)3—NHC(O)—(CH2)6—C(O)NH—(CH2)3— is useful in nucleic acid delivery applications. Polyacetals of the formula (I) are preferably made by reacting appropriate diols and divinyl ethers. In preferred embodiments, complexes formed between polyacetals of the formula (I) and polynucleotides are useful as transfection reagents.Type: GrantFiled: February 25, 2003Date of Patent: April 12, 2005Assignee: Nitto Denko CorporationInventors: Lei Yu, Sang Van, Shouping Ji, Kenji Matsumoto
-
Patent number: 6858703Abstract: A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1: in which Y1 represents N, P, S, As and/or Se. Ar1 and Ar2, which may the same or different, represent independently a multivalent, optionally substituted aromatic group, and Ar3 represents independently a mono or multivalent, optionally substituted aromatic group. At least one terminal group is attached in the polymer to the Ar1, Ar2 and optionally Ar3 groups located at the end of the polymer chains, so as to cap the polymer chains and prevent further polymer growth. At least one terminal group is derived from at least one end capping reagent used in the polymerization to form the polymeric material to control the molecular weight thereof. A charge transport material comprising such polymers is useful in electroreprographic and electroluminescent devices. These polymers may be made by controlling their molecular weight with an end capping reagent.Type: GrantFiled: May 12, 2003Date of Patent: February 22, 2005Assignee: Avecia LimitedInventors: Joanne Victoria Allen, John Dylan Morgan, Julie Anne Fergus, Mark Thomas, Stephen William Leeming
-
Patent number: 6846429Abstract: This invention provides a transparent, paramagnetic polymer composition in which a polymer is completed with sufficient rare earth ions, particularly ions selected from ions in the group of elements 64-69, to provide a polymer with a magnetic mass susceptibility greater than 20×10?6 emu/g measured at 298° K. This invention provides optically responsive devices that employ these transparent, paramagnetic polymers as an element that is responsive to a magnetic field and a means for providing magnetic field. This invention provides transparent labels or markings employing these transparent, paramagnetic polymers.Type: GrantFiled: January 16, 2002Date of Patent: January 25, 2005Assignee: E. I. du Pont de Nemours and CompanyInventor: David M. Dean
-
Patent number: 6841601Abstract: A unitary humidity exchange cell (HUX) is dislosed that includes at least one composite membrane, disposed between at least one first chamber for flow of the first fluid therethrough and at least one second chamber for flow of the second fluid therethrough. The composite membrane include an at least partially sulfonated humidity-conducting polymer comprising residues derived from at least one arylvinyl monomer; and a reinforcing substrate bonded thereto. The product finds utility in a variety of physical and chemical processes and products whereby moisture or other highly polar liquid or gas transfer, exchange removal or delivery is important. A notable application is the Membrane Energy Recovery Ventilator (MERV) in which both heat, ions and moisture is transferred between two air streams, one intake and one exhaust, from an air-conditioned building.Type: GrantFiled: October 9, 2002Date of Patent: January 11, 2005Assignee: Dais-Analytic CorporationInventors: Joseph M. Serpico, Scott G. Ehrenberg, Gary Wnek
-
Publication number: 20040254297Abstract: Compositions are provided comprising aqueous dispersions of polythiophenes having homopolymers or co-polymers of Formula I(a) or Formula I(b) and at least one colloid-forming polymeric acid. Methods of making such compositions and using them in organic electronic devices are further provided.Type: ApplicationFiled: March 17, 2004Publication date: December 16, 2004Inventors: Che-Hsiung Hsu, Yong Cao, Sunghan Kim, Daniel David Lecloux, Huawen Li, Charles Douglas MacPherson, Chi Zhang, Hjalti Skulason
-
Patent number: 6828353Abstract: Ion-Exchange polymers for a polymer electrolyte membrane include a moiety of formula (I), and/or a moiety of formula (II), and/or a moiety of formula (III) wherein at least some of the units I, II and/or III are sulphonated. The phenyl moieties in units I, II, and III are independently optionally substituted and optionally cross-linked; m, r; s, t, v, w and z independently represent zero or a positive integer, E and E′ independently represent an oxygen or a sulphur atom or a direct link, G represents an oxygen or sulphur atom, a direct link or a —O—Ph—O— moiety where Ph represents a phenyl group and Ar is selected from one of the moieties (i) to (x) as set forth herein which is bonded via one or more of its phenyl moieties to adjacent moieties.Type: GrantFiled: March 12, 2001Date of Patent: December 7, 2004Assignee: Victrex Manufacturing LimitedInventors: Peter Charnock, David J. Kemmish, Philip A. Staniland, Brian Wilson
-
Publication number: 20040236015Abstract: Segmented water soluble polymers, containing a higher molecular weight segment linked to a lower molecular weight segment, are described. In one embodiment, the polymer segments are poly(ethylene glycol) segments. The segmented polymers are functionalized and are useful for conjugation to various moieties such as pharmacologically active substances. Also described are conjugates of such polymers and methods of their preparation.Type: ApplicationFiled: December 11, 2003Publication date: November 25, 2004Inventors: Antoni Kozlowski, Xiaoming Shen, Michael D. Bentley, Zhihao Fang, Tony L. Sander
-
Patent number: 6818706Abstract: A polymer mixture of a thermoplastically processable fluoropolymer and a sulfur polymer, wherein the sulfur polymer component in the polymer mixture is 0.1 to 20% by weight.Type: GrantFiled: February 7, 2002Date of Patent: November 16, 2004Assignee: NexansInventor: Uwe Marx
-
Publication number: 20040220332Abstract: A method for forming a conjugated polymer which is doped by a dopant includes the steps of (a) adding a doping agent comprising a dopant moiety to a solution containing the conjugated polymer or a precursor thereof and, optionally, a second polymer, the dopant moiety being capable of bonding to the conjugated polymer, precursor thereof or the second polymer; (b) allowing the dopant moiety to bond to the conjugated polymer, precursor thereof or the second polymer to perform doping of the conjugated polymer, wherein the amount of doping agent added in step (a) is less than the amount required to form a fully doped conjugated polymer.Type: ApplicationFiled: April 7, 2004Publication date: November 4, 2004Applicant: Cambridge Display Technology Ltd.Inventors: Peter Kian-Hoon Ho, Ji-Seon Kim, Richard Henry Friend
-
Publication number: 20040220327Abstract: 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: ApplicationFiled: April 30, 2004Publication date: November 4, 2004Applicant: PRC-DeSoto International, Inc.Inventors: Michael A. Cosman, Adrian Balladares
-
Publication number: 20040220354Abstract: Provided is a polymer electrolyte containing a block copolymer comprising one or more blocks having sulfonic acid groups and one or more blocks having substantially no sulfonic acid group, and at least one block among all blocks is a block having aromatic rings in the main chain thereof, and a method for producing the same. The polymer electrolyte is suitable for a proton conductive film of a fuel cell due to excellent water resistance and heat resistance, and high proton conductivity.Type: ApplicationFiled: May 26, 2004Publication date: November 4, 2004Applicant: Sumitomo Chemical Company, LimitedInventors: Atsushi Terahara, Katsuhiko Iwasaki, Takashi Ikeda
-
Publication number: 20040171771Abstract: A core-shell particle including a signal-generating substance therein, wherein the core-shell particle consists of (1) a core portion substantially made of a water-insoluble polymer compound; and (2) a shell portion substantially made of a water-soluble polymer compound having a reactive functional group, and covering a surface of the core portion in the manner of bristles of a brush; and the core portion and the shell portion are, as a whole, a block copolymer of a water-insoluble polymer and a water-soluble polymer, characterized in that the signal-generating substance is included in the core portion, is disclosed, and a process for producing the same is also disclosed.Type: ApplicationFiled: December 1, 2003Publication date: September 2, 2004Inventors: Kazunori Kataoka, Yukio Nagasaki, Naoya Shibata, Nobuhiro Hoshino
-
Patent number: 6776930Abstract: The present invention recites a method comprising reacting in a solvent in the presence of a base a) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1200 nm and 99-0 mole % of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm, with b) an organic compound of Formula II X—B—X1 wherein B is a divalent organic radical to form a light absorbing composition comprising a mixture of a polymer having the formula and a cyclic compound having the general formula wherein B is as defined above; n is at least 2, m is 1, 2, 3 or 4 and A comprises the residue of a diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1000 nm and wherein the remaiType: GrantFiled: December 29, 2000Date of Patent: August 17, 2004Assignee: Eastman Kodak CompanyInventors: Max Allen Weaver, James John Krutak, Sr., Brian Edison Maxwell, Gerry Foust Rhodes, Samuel David Hilbert, Jean Carroll Fleischer, William Whitfield Parham
-
Patent number: 6774180Abstract: High molecular weight derivatives of activated poly(ethylene glycol) and the like polymers are prepared in high purity by conjugating a large PEG molecule to a small PEG molecule. Most of the reaction steps can be accomplished on the more readily purified small molecule to avoid laborious purification of the high molecular weight derivatives.Type: GrantFiled: December 18, 2001Date of Patent: August 10, 2004Assignee: Nektar Therapeutics AL, CorporationInventors: Antoni Kozlowski, Xiaoming Shen, Michael David Bentley, Zhihao Fang
-
Publication number: 20040138377Abstract: Provided is a thermoplastic resin structure formed of a resin composition that comprises substantially (a) from 5 to 80% by volume of a polyolefin resin and (b) from 20 to 95% by volume of a polyphenylene sulfide resin, which is characterized in that, in morphology therein seen through electronic microscopy, the polyphenylene sulfide resin (b) forms a matrix phase (continuous phase) and the polyolefin resin (a) forms a disperse phase. The thermoplastic resin structure gives plastic containers, tubes and their Attached parts having good barrier properties, strength, durability and workability.Type: ApplicationFiled: November 17, 2003Publication date: July 15, 2004Applicant: Toray Industries, Inc. a corporation of JapanInventors: Hideo Matsuoka, Mitsushige Hamaguchi, Kazuhiko Kobayashi, Akira Todo, Taku Koda
-
Patent number: 6756474Abstract: The present invention is generally directed to a polyaniline/high molecular weight polymeric sulfonic acid complex made by oxidative polymerization, and aqueous polyaniline dispersions, where the viscosity of the dispersion has been increased by the presence of the high molecular weight polymeric sulfonic acids during the polymerization process.Type: GrantFiled: January 23, 2002Date of Patent: June 29, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Che-Hsiung Hsu
-
Publication number: 20040102587Abstract: A polymer membrane having a first surface and a second surface, wherein the polymer membrane has a reticulated network of flow channels between pores on the first and second surfaces, and is made of a single phase blend containing a polysulfone polymer and a poly(vinylpyrrolidone-co-styrene) copolymer, the content of the poly(vinylpyrrolidone-co-styrene) copolymer contained in the polymer membrane being such that the poly(vinylpyrrolidone-co-styrene) copolymer can form the single phase blend with the polysulfone polymer.Type: ApplicationFiled: June 18, 2003Publication date: May 27, 2004Applicants: Chung Ang University, Chang-Keun Kim, Joo-Heon KimInventors: Chang-Keun Kim, Joo-Heon Kim, Sang-Bong Seo, Hyung-Ja You
-
Publication number: 20040092676Abstract: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength.Type: ApplicationFiled: November 5, 2003Publication date: May 13, 2004Applicant: GEO Specialty Chemicals, Inc.Inventors: Arpad Savoly, Dawn P. Elko, Bennie Veal, James McCrary
-
Patent number: 6723827Abstract: A polythioether comprising: wherein R1 is a C1-10 alkyl, —(R3Q)pR3— or C6-C20 aryl where Q is O or S, each R3 is independently C1-6 alkyl, and p is an integer between 0 and 6; R2 is C1-6 alkyloxy or C5-12 cycloalkyloxy, R4 is H, C1-6 alkyl, C1-6 alkyl alcohol and C0-6 alkyl substituted with where X is a halogen, m is an integer between 1 and 4, and n is an integer selected to yield a molecular weight for said polythioether of between 1000 and 10,000 Daltons.Type: GrantFiled: February 20, 2003Date of Patent: April 20, 2004Assignee: PBT Brands, Inc.Inventors: Jonathan D. Zook, David W. Jordan, Dean M. Willard, George Jones, Michael Cosman
-
Publication number: 20040054095Abstract: A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1: 1Type: ApplicationFiled: May 12, 2003Publication date: March 18, 2004Applicant: Avecia Limited of BlackleyInventors: Joanne Victoria Allen, John Dylan Morgan, Julie Anne Fergus, Mark Thomas, Stephen William Leeming
-
Patent number: 6653437Abstract: A process for producing oxidative cross-linked polyarylene sulfide using a reaction apparatus including a reaction vessel provided with a resin inlet, a gas inlet, a resin outlet, and a gas outlet, and a transverse type heating member having a helical structure which is rotatable around a central shaft disposed in the reaction vessel. The process includes the step of supplying heated oxygen containing gas to the polyarylene sulfide from the downward direction of the transverse type heating member while the polyarylene sulfide is heated and agitated by the rotation of the transverse type heating member to carry out an oxidative cross-linking reaction of the polyarylene sulfide. According to the process, it becomes possible to increase the productivity and the gas components present in polyarylene sulfide can be effectively removed when the melt viscosity of polyarylene sulfide is increased to a desired degree after polymerizing the polyarylene sulfide.Type: GrantFiled: March 21, 2002Date of Patent: November 25, 2003Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Toshio Hinokimori, Nobuhiko Yamauchi, Takayuki Mine
-
Patent number: 6645743Abstract: A polyhydroxyalkanoate (PHA) having a desired configuration is produced using a raw material containing &ohgr;-(4-vinylphenyl)-alkanoic acid and (&ohgr;-substituted alkanoic acid in which a group having a ring structure selected from phenyl, thienyl, and cyclohexyl structures substitutes therefor on the end thereof by producing a PHA copolymer containing the corresponding 3-hydroxy-&ohgr;-(4-vinylphenyl)-alkanoate unit and the corresponding 3-hydroxy-&ohgr;-substituted alkanoate unit by making use of a microorganism capable of producing the PHA or by oxidizing a predetermined portion of the corresponding PHA.Type: GrantFiled: February 25, 2003Date of Patent: November 11, 2003Assignee: Canon Kabushiki KaishaInventors: Tsutomu Honma, Etsuko Sugawa, Tetsuya Yano, Takeshi Imamura, Takashi Kenmoku, Tatsuki Fukui
-
Patent number: 6646104Abstract: A method of preparing a sulfur-containing compound having at least one thio group in the molecules by reacting a thiol compound with an organic compound having at least one functional group capable of forming a thio group in the molecules upon reacting with a mercapto group in the presence of a basic compound, wherein the number of moles of water contained in the reaction system is set to be not larger than 7.5 times as large as the number of moles obtained by multiplying the number of moles of the thiol compound to be reacted by a number of mercapto groups present in one molecule of the thiol compound.Type: GrantFiled: July 30, 2001Date of Patent: November 11, 2003Assignee: Tokuyama CorporationInventors: Katsuhiro Mori, Tadashi Hara, Junji Momoda
-
Patent number: 6645525Abstract: Compositions for sustained delivery of a biomolecule including an anionic polymer and a cationic polymer which ironically interact with each other and, optionally, with the biomolecule. Methods for making the compositions, including the step of combining the negatively charged polymer with the positively charged polymer to form an ionic complex are also provided. The biomolecule may be complexed with one of the polymers before it is complexed with the oppositely charged polymer. The complex is exposed to conditions that cause the formation of precipitated microcarriers, such as a change in pH or the addition of a complexing molecule. The compositions are preferably formulated into microcarriers.Type: GrantFiled: May 6, 2002Date of Patent: November 11, 2003Assignee: Sedum Laboratories, Inc.Inventor: James E. Woiszwillo
-
Patent number: 6646066Abstract: This invention relates to rubber composition which contains a thermoplastic polymer and use thereof as a tire sidewall component and/or tread supporting ring for use in a tire/rim assembly. Such tire sidewall component may be a sidewall insert and/or apex of a rubber composition which contains a thermoplastic polymer.Type: GrantFiled: March 14, 2002Date of Patent: November 11, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Bruce Raymond Hahn, Ivan Glen Hargis, David Andrew Benko
-
Publication number: 20030204030Abstract: A poly(thio)ester (co)polymer which comprises a repeating structural unit represented by the formula (1-A) as an essential structural unit: 1Type: ApplicationFiled: November 8, 2002Publication date: October 30, 2003Inventors: Chojiro Higuchi, Atsuo Otsuji, Kenichi Sugimoto, Mitsuo Nakamura, Masatoshi Takagi, Yasuhiro Nukii, Koju Okazaki