Phenolic Reactant Contains A Nitrogen Atom Patents (Class 528/210)
  • Patent number: 7208234
    Abstract: In an organic EL element, an organic EL layer is interposed between anodes and cathodes formed on a substrate. Each of the cathodes is made of a first conductive film that comes into contact with the organic EL layer and a second conductive film that constitutes a laminated structure together with the first conductive film. The first conductive film contains any one of an alkaline metal and an alkaline earth metal. The second conductive film contains any one of at least one type metal selected from a group consisting of Ru (ruthenium), Rh (rhodium), Jr (iridium), Os (osmium) and Re (rhenium) and its oxide.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: April 24, 2007
    Assignee: Fujitsu Limited
    Inventor: Kota Yoshikawa
  • Patent number: 7129314
    Abstract: An aromatic amide block copolymer containing a specific aromatic amide compound unit and having a weight average molecular weight, as reduced into standard polystyrene measured by the gel permeation chromatography, of from 10,000 to 1,000,000.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: October 31, 2006
    Assignee: Tosoh Corporation
    Inventors: Hiroshi Miyata, Satoru Kondo, Hiroshi Yamakawa, Shinji Shimosato, Katsuaki Mori
  • Patent number: 7060372
    Abstract: The present invention is generally directed to a polymeric metal complex comprising a polymeric material having a plurality of a first-type functional groups, wherein at least a portion of the functional groups are coordinated to at least one metal containing complex, polymeric-metal complex salts comprising at least one polymeric material having a plurality of first-type functional groups having a charge, and at least one metal complex having an opposite charge. It further relates to devices that are made with the polymeric metal complex or the polymeric-metal complex salt.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: June 13, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Michael Fryd, Vladimir Grushin, Norman Herron, Mookkan Periyasamy, Viacheslav A. Petrov, Nora Sabina Radu
  • Patent number: 7034100
    Abstract: The present invention is related to the functionalized polyanilines and also to a method for making said functionalized polyanilines.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: April 25, 2006
    Inventor: Chien-Chung Han
  • Patent number: 6992165
    Abstract: A method for making an amine-terminated polyarylene polyether thermoplastic in which a liquid/solid slurry reaction mixture is formed in an oxygen-free atmosphere. The reaction mixture is composed of a dihydroxyaromatic compound, a dihaloaromatic compound, an amino-hydroxyaromatic compound, a weak base, an aprotic polar solvent and a non-aromatic azeotrope former which is substantially imiscible with the aprotic polar solvent, said azeotrope former consisting of a molecule which has from 6 to 10 carbon atoms. The reaction mixture is refluxed at an elevated temperature to eventually produce a solution of the amine-terminated polyarylene polyether in the polar solvent. The method is designed for use in producing large amounts of thermoplastic in a simple, efficient and reliable manner.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: January 31, 2006
    Assignee: HEXCEL Corporation
    Inventor: Winston Lee Hedges
  • Patent number: 6942822
    Abstract: The present invention provides a process for preparing polyaniline salt using an organic acid by polymerizing an aromatic amine in presence of a mixture of aqueous and an organic solvent using an anionic surfactant and a radical initiator at a temperature in the range of 5 to 55° C. for a period ranging from 4 to 24 hours and separating it to obtain polyaniline salt in both solution and solid forms, which are soluble in organic solvents and a mixture of solvents.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: September 13, 2005
    Assignee: Council of Scientific & Industrial Research
    Inventors: Srinivasan Palaniappan, Chellachamy A. Amarnath
  • Patent number: 6939940
    Abstract: Main chain thermotropic liquid crystal esters, ester-imides, and ester-amides were prepared from AA, BB, and AB type monomeric materials and were end-capped with phenylacetylene, phenylmaleimide, or nadimide reactive end-groups. The resulting reactive end-capped liquid crystal oligomers exhibit a variety of improved and preferred physical properties. The end-capped liquid crystal oligomers are thermotropic and have, preferably, molecular weights in the range of approximately 1000-15,000 grams per mole. The end-capped liquid crystal oligomers have broad liquid crystalline melting ranges and exhibit high melt stability and very low melt viscosities at accessible temperatures. The end-capped liquid crystal oligomers are stable for up to an hour in the melt phase.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: September 6, 2005
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Theodorous J. Dingemans, Erik S. Weiser, Terry L. St. Clair
  • Patent number: 6916900
    Abstract: A method of making polyaniline grafted lignosulfonic acid is disclosed. The method comprises mixing of aniline and a lignosulfonate in the presence of a transition metal salt.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: July 12, 2005
    Assignee: GeoTech Chemical Company, LLC
    Inventor: Tito Viswanathan
  • Patent number: 6894091
    Abstract: A semiconductor encapsulating epoxy resin composition comprising (A) an epoxy resin, (B) a phenolic resin curing agent, (C) a molybdenum compound, and (D) 300-900 parts by weight per 100 parts by weight of components (A) and (B) combined of an inorganic filler contains nitrogen atoms in an amount of 1.5-20% by weight based on the weight of components (A) and (B) combined. Cured parts of the composition exhibit high-temperature capabilities and flame retardance despite the absence of halogenated epoxy resins and antimony trioxide.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: May 17, 2005
    Assignee: Shin Etsu Chemical Co., Ltd.
    Inventors: Shoichi Osada, Toshio Shiobara, Eiichi Asano, Kazutoshi Tomiyoshi, Takayuki Aoki, Shigeki Ino
  • Patent number: 6890626
    Abstract: A polyimide-based polycondensate which may be used as an insulation film by coating a copper foil with the polycondensate and by heating the coated copper foil, which insulation film does not warp the foil, as well as a production process thereof, is disclosed. The polycondensate according to the invention is a solvent-soluble polycondensate containing a benzoxazole component having a carboxylic group and an imide component having a phenolic hydroxyl group, which is obtained by dehydration-condensing one or more tetracarboxylic dianhydrides with one or more aromatic diamines having an amino group and a phenolic hydroxyl group, the amino group and the phenolic hydroxyl group being located at ortho positions with respect to each other, by heating the one or more tetracarboxylic dianhydrides and the one or more aromatic diamines at 150° C. to 220° C. in the presence of an acid catalyst.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: May 10, 2005
    Assignee: PI R&D Co., Ltd.
    Inventors: Hiroshi Itatani, Shunichi Matsumoto
  • Patent number: 6824642
    Abstract: The following invention relates to phenyl-linked polybenzoxazoles having terminal, aryl- or heteroaryl-attached cyanate groups which can be used for adhesive bonding and as dielectrics, especially for electronic components, and to a process for preparing them.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: November 30, 2004
    Assignee: Infineon Technologies AG
    Inventors: Andreas Walter, Recai Sezi
  • Publication number: 20040181028
    Abstract: An aromatic ether oligomer or polyaromatic ether comprising the formula: 1
    Type: Application
    Filed: March 17, 2004
    Publication date: September 16, 2004
    Inventors: Teddy M. Keller, Dawn D. Dominguez
  • Publication number: 20040181029
    Abstract: An aromatic ether oligomer or polyaromatic ether comprising the formula:
    Type: Application
    Filed: March 17, 2004
    Publication date: September 16, 2004
    Inventors: Teddy M. Keller, Dawn D. Dominguez
  • Publication number: 20040181027
    Abstract: An aromatic ether oligomer or polyaromatic ether comprising the formula:
    Type: Application
    Filed: March 17, 2004
    Publication date: September 16, 2004
    Inventors: Teddy M. Keller, Dawn D. Dominguez
  • Patent number: 6767970
    Abstract: PPE copolymers comprise three repeating units. The PPE copolymers are polymerized with 2,6-DMP, dialkenylamide or dialkenylamine phenol, and another phenol derivative. A resin composition having a low cross-linking temperature is also disclosed, which comprises the PPE copolymer and a free radical initiator.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 27, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Shin-Shin Wang, Jie-Hwa Ma, Jong-Lieh Yang, Kuo-Yuan Hsu, Li-Chung Liang
  • Publication number: 20040092700
    Abstract: Methods are provided for directly producing a stable aqueous dispersion of an electrically conducting polyaniline, comprising synthesizing an electrically conducting polyaniline in the presence of a polymeric acid in aqueous solution, thereby forming an as-synthesized aqueous dispersion comprising the electrically conducting polyaniline and the polymeric acid, and contacting the as-synthesized aqueous dispersion with at least one ion exchange resin under conditions suitable to produce a stable aqueous dispersion of an electrically conducting polyaniline. Aqueous dispersions produced by the methods of the invention are useful for preparing buffer layers for use in electroluminescent (EL) devices.
    Type: Application
    Filed: August 14, 2003
    Publication date: May 13, 2004
    Inventor: Che-Hsiung Hsu
  • Patent number: 6685853
    Abstract: The present invention is an admixture of an electrically conductive material and an energy sensitive material resulting in a conductive energy sensitive composition. The structures are useful for lithography in microelectronic fabrication to avoid the effects of charging on resists from electron beams. The compositions are also useful in applications of scanning electron metrology and static dissipation.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: February 3, 2004
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Edward D. Babich, Inna V. Babich, Kuang-Jung Chen, Wayne Martin Moreau, David E. Seeger
  • Publication number: 20030176623
    Abstract: Poly-o-hydroxyamides are cyclicized to obtain polybenzoxazoles. The poly-o-hydroxyamides provide effective filling of trenches. In particular, the poly-o-hydroxyamides can fill trenches having a width of less than 100 nm and an aspect ratio of more than 4. Further, the polybenzoxazoles of the invention are very suitable for the damascene process. A dielectric can be made from the polybenzoxazole. In turn, semiconductor devices can include the dieletric. Processes for making the poly-o-hydroxyamides, polybenzoxazoles, and semiconductor devices are included.
    Type: Application
    Filed: September 30, 2002
    Publication date: September 18, 2003
    Inventors: Klaus Lowack, Anna Maltenberger, Recai Sezi, Andreas Walter
  • Patent number: 6613493
    Abstract: Photoresist polymers having nitro groups (—NO2), and photoresist compositions containing the same. A photoresist pattern having excellent endurance, etching resistance, reproducibility and resolution can be formed by the use of the photoresist copolymer comprising polymerization repeating units represented by Chemical Formula 1a or 1b: wherein, R1, a, b, c, d, e, f, g and h is defined in the specification. Having nitro groups in the polymer, the photoresist polymer results in a low absorbance in the range of 157 nm wavelength, so that it is extremely useful for a photolithography process using, in particular, VUV light source.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: September 2, 2003
    Assignee: Hynix Semiconductor Inc
    Inventors: Geun Su Lee, Jae Chang Jung, Ki Soo Shin
  • Patent number: 6607795
    Abstract: Herein is disclosed an oxygen scavenging composition, comprising (i) an oxygen scavenging polymer comprising units having structure I: wherein R1 and R2 are independently selected from the group consisting of —O—, —NCO—, and —NR—, wherein R is selected from the group consisting of —H and —C1-C6 alkyls; (ii) a transition metal oxidation catalyst; and (iii) an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm. The oxygen scavenging composition can be used to form an oxygen scavenging packaging article.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 19, 2003
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Hu Yang, Ta Yen Ching, Peter Kwan
  • Publication number: 20030135013
    Abstract: The present invention is a method of producing substantially dry water insoluble polymers from poly alkyl esters of vinylic monomers for use in a method for the clarification of red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite ore. The polymers can be either homopolymers, copolymers or terpolymers. Preferably, the dried emulsion polymers are high molecular weight polymers of poly(methyl acrylate), poly(methyl acrylate/acrylic acid), poly(vinyl acetate/acrylic acid/methyl acrylate), poly(t-butyl methacrylate/acrylic acid/methyl acrylate) and poly(t-butyl acrylate/acrylic acid/methyl acrylate).
    Type: Application
    Filed: January 29, 2002
    Publication date: July 17, 2003
    Inventors: Everett C. Phillips, Ronald J. Allain
  • Patent number: 6586565
    Abstract: The present invention provides a process for the preparation of a polyaniline salt by polymerizing an aromatic amine in the presence of a protonic acid and a mixture of aqueous and hydrocarbon solvents to obtain polyaniline salt dissolved in organic phase or in powder form.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 1, 2003
    Assignee: Council of Scientific & Industrial Research
    Inventor: Sirnivasan Palaniappan
  • Patent number: 6482915
    Abstract: The invention provides a method for producing a thermotropic liquid crystalline polymer of high quality at high yield and in short polymerization time, which method includes polymerizing staring monomers I, II, III, and IV, i.e., (I) an aromatic hydroxycarboxylic acid, etc.; (II) an aromatic dicarboxylic acid and an alicyclic dicarboxylic acid; (III) an aromatic diol, an alicyclic diol, an aliphatic diol, etc.; and (IV) an aromatic hydroxylamine, an aromatic diamine, etc. in the presence of an acylating agent, wherein the starting materials are charged so as to satisfy the following equations (1) to (4): 0.0015≦((A)−(B))/((A)+(B))≦0.006  (1); 1.01≦(D)/(C)≦1.08  (2); 0≦(E)≦40  (3); and (D)/(C)≧−0.002 ×(E)+1.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: November 19, 2002
    Assignee: Polyplastics Co., Ltd.
    Inventor: Toshiaki Yokota
  • Patent number: 6403755
    Abstract: A new phosphazene-based polyester macro-molecule is provided, as is a method for producing the macro-molecule.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: June 11, 2002
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Frederick F. Stewart, Thomas A. Luther, Mason K. Harrup
  • Patent number: 6388045
    Abstract: Provided is a liquid crystalline polymer which is obtained by copolymerizing at least one polyfunctional aromatic monomer selected from the group consisting of the compounds represented by the formulae (I), (II) and (III) below with at least one polymerizable monomer. The liquid crystalline polymer of the present invention is excellent in heat resistance, molding properties, flow properties and mechanical properties, especially it provide molded article with improved weld strength.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: May 14, 2002
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Masaya Kitayama, Kiichi Kometani, Taihei Hamasaki, Motoki Asahara
  • Patent number: 6380346
    Abstract: The present invention is related to a method for making functionalized polyanilines.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: April 30, 2002
    Inventor: Chien-Chung Han
  • Patent number: 6362315
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: March 26, 2002
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph A. Akkara, David L. Kaplan, Madhu Ayyagari
  • Patent number: 6362314
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: March 26, 2002
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph A. Akkara, David L. Kaplan, Madhu Ayyagari
  • Publication number: 20020028907
    Abstract: An oxidation polymer of a substituted phenol, obtained by oxidative polymerization of at least one compound selected from the group consisting of a compound of formula (Ia) and a compound of formula (Ib), in which the oxidation polymer has a number-average polymerization degree of 3 or more: 1
    Type: Application
    Filed: July 17, 2001
    Publication date: March 7, 2002
    Inventors: Hideyuki Higashimura, Shiro Kobayashi
  • Patent number: 6324091
    Abstract: This invention provides novel high density memory devices that are electrically addressable permitting effective reading and writing, that provide a high memory density (e.g., 1015 bits/cm3), that provide a high degree of fault tolerance, and that are amenable to efficient chemical synthesis and chip fabrication. The devices are intrinsically latchable, defect tolerant, and support destructive or non-destructive read cycles. In a preferred embodiment, the device comprises a fixed electrode electrically coupled to a storage medium comprising a storage molecule comprising a first subunit and a second subunit wherein the first and second subunits are tightly coupled such that oxidation of the first subunit alters the oxidation potential(s) of the second subunit rendering the oxidation potential(s) of the second unit different and distinguishable from the oxidation potentials of the first subunit.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: November 27, 2001
    Assignee: The Regents of the University of California
    Inventors: Daniel Tomasz Gryko, Peter Christian Clausen, David F. Bocian, Werner G. Kuhr, Jonathan S. Lindsey
  • Publication number: 20010031851
    Abstract: The object was to provide an epoxy resin composition which has excellent flame retardancy, heat resistance and humidity resistance and is advantageously used for semiconductor encapsulating, laminated boards, electrical insulation and the like.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 18, 2001
    Inventors: Takao Fukuzawa, Takayoshi Hirai, Tetsuro Imura, Yoshinobu Ohnuma
  • Patent number: 6303053
    Abstract: A novel method for producing a meta type polyaniline, comprising polymerizing aniline in at least one organic solvent selected from N-methyl-2-pyrrolidone, N,N-dimethyl sulfoxide, N,N-dimethylacetamide and N,N-dimethylformamide, in the presence of at least one oxidizing agent selected from ammonium peroxodisulfate, iron(III) chloride, manganese dioxide and hydrogen peroxide, at −20° C. to 50° C.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: October 16, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Akita, Masao Ichikawa, Masaru Iguchi, Hiroyuki Oyanagi
  • Patent number: 6299800
    Abstract: The invention provides conductive compositions of matter, as well as methods for the preparation of the conductive compositions of matter, solutions comprising the conductive compositions of matter, and methods of preparing fibers or fabrics having improved anti-static properties employing the conductive compositions of matter.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: October 9, 2001
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Tito Viswanathan
  • Patent number: 6284435
    Abstract: The addition of a highly polarizable additive such as an organic anionic surfactant to an electrically active polymer improves the electrical properties of the polymer. When such an additive is added to an electroluminescent organic polymer this mixture can be used in diodes having an anode contacting a layer of this mixture as the active light-emitting layer and an air-stable metal cathode having a work function larger than 4 eV. The external efficiency and brightness versus voltage are significantly improved compared to results obtained with the same electroluminescent polymer used alone with high work function (>4.0 eV) metal cathodes.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: September 4, 2001
    Assignee: Uniax Corporation
    Inventor: Yong Cao
  • Publication number: 20010007013
    Abstract: The present invention provides a method for producing a formed article from a dope comprising a polyphosphoric acid solvent and a polymer soluble in polyphosphoric acid, which includes using a production apparatus containing an apparatus for stirring and uniformly dispersing or homogenizing a dope and a pump apparatus for delivering the uniformly dispersed or homogeneous dope, wherein at least one of the apparatus and the pump apparatus has a part that comes into contact with the dope. According to the present invention, maintenance frequency of production facility due to the corrosion and elution of metal in a recovered solvent can be reduced, which in turn decreases the production cost.
    Type: Application
    Filed: December 12, 2000
    Publication date: July 5, 2001
    Inventors: Yoshihiko Teramoto, Shoichi Uemura, Kiyoshi Hotta
  • Publication number: 20010003774
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Application
    Filed: February 4, 1999
    Publication date: June 14, 2001
    Inventors: JOSEPH A. AKKARA, DAVID L. KAPLAN, MADHO AYYAGARI
  • Publication number: 20010002417
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(n-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Application
    Filed: February 4, 1999
    Publication date: May 31, 2001
    Inventors: JOSEPH A. AKKARA, DAVID L. KAPLAN, MADHU AYYAGARI
  • Patent number: 6235220
    Abstract: The invention concerns compositions for manufacturing composite materials containing a polyaniline. These compositions are formed by a solution in a solvent such as m-cresol of the following constituents: a) a conductive polyaniline protonated by means of a protonation agent able to promote the dissolution of the polyaniline in the solvent, for example phenylphosphonic acid, b) an insulating polymer chosen for example from amongst the cellulosic polymers and polyvinyl chlorides such as cellulose acetate, and c) an insulating plasticiser such as a mixture of dimethyl phthalate, diethyl phthalate and triphenyl phosphate. By pouring this solution and evaporating the solvent, it is possible to obtain a flexible film of conductive composite material having good electrical and mechanical properties.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: May 22, 2001
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Adam Pron, Yann-Florent Nicolau, Maxime Nechtschein, Françoise Genoud
  • Patent number: 6222000
    Abstract: Process for producing highly stretchable, amorphous anisotropic melt-forming polymers having recurring units derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, at least one aromatic diacid and at least one aromatic diol and/or hydroxyamine component, at least a portion of which is 4,4′-biphenol, which process comprises incorporating into such polymers recurring units derived from one or more aromatic monomers that provide the polymers with selected meta-linkages wherein each of said recurring units is present in the polymer in specific amounts.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: April 24, 2001
    Assignee: Ticona LLC
    Inventors: H. Clay Linstid, III, Dominick L. Cangiano, Ronald N. DeMartino, James E. Kuder, Vincent J. Provino
  • Patent number: 6207790
    Abstract: Process for producing highly stretchable, amorphous anisotropic melt-forming polymers consisting essentially of recurring units derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, an aromatic diacid, at least a portion of which comprises 2,6-naphthalene dicarboxylic acid, and an aromatic diol and/or hydroxyamine component, at least a portion of which is 4,4′-biphenol; which comprises incorporating into such polymers recurring units derived from resorcinol, wherein each of said recurring units is present in the polymer in specified amounts.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: March 27, 2001
    Assignee: Ticona LLC
    Inventors: H. Clay Linstid, III, Derrick B. McKie
  • Patent number: 6194540
    Abstract: The sulfonation of a polyaniline or a derivative thereof by the use of a sulfonating agent, characterized by dispersing the polyaniline or the derivative thereof in a reaction solvent thereby inhibiting the formation of lumps of grains due to substantial aggregation. Preferably, the solvent for the reaction is an organic solvent incapable of reacting with the sulfonating agent. The initial stirring power for the reaction of sulfonation is preferred to be not less than 0.03 kW/m3 and the polyaniline or the derivative thereof is preferred to have a water content of not more than 8 wt. %. Further, this invention is characterized by subjecting a polyaniline having introduced a sulfonic acid group therein or a derivative thereof to hydrolysis in a mixed solution of water with a hydrophilic organic solvent. The hydrophilic organic solvent is preferred to be an alcohol.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: February 27, 2001
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Shoji Ito, Kazuhiko Murata, Ryuji Aizawa, Yoshinobu Asako
  • Patent number: 6177182
    Abstract: Provided herein are novel polymeric coating materials for direct digital imaging by laser. More specifically the novel coating materials are thermally reactive near infrared absorption polymers designed for use with near infrared laser imaging devices. This invention further extends to the preparation and methods of use of the novel materials. The invention is particularly useful in the preparation of lithographic printing plates for computer-to-plate and digital-offset-press technologies. The invention extends to photoresist applications, to rapid prototyping of printed circuit boards and to chemical sensor development.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: January 23, 2001
    Assignee: American Dye Source, Inc.
    Inventor: My T. Nguyen
  • Patent number: 6124425
    Abstract: Provided herein are novel polymeric coating materials for direct digital imaging by laser. More specifically the novel coating materials are thermally reactive near infrared absorption polymers designed for use with near infrared laser imaging devices. This invention further extends to the preparation and methods of use of the novel materials. The invention is particularly useful in the preparation of lithographic printing plates for computer-to-plate and digital-offset-press technologies. The invention extends to photoresist applications, to rapid prototyping of printed circuit boards and to chemical sensor development.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: September 26, 2000
    Assignee: American Dye Source, Inc.
    Inventor: My T. Nguyen
  • Patent number: 6103145
    Abstract: Disclosed is a novel composition of matter comprising a polyacid and a polymer containing repeating units which contain one or more basic atoms. The complex is water-soluble and electrically conductive. The complex is useful in providing organic discharge layers for use in electronic applications and fabrications.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 15, 2000
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Jeffrey Donald Gelorme, Thomas Harold Newman, Niranjan Mohanlal Patel, David Earle Seeger
  • Patent number: 6096859
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: August 1, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph A. Akkara, David L. Kaplan, Madhu Ayyagari
  • Patent number: 6010645
    Abstract: Disclosed is a novel composition of matter comprising a polyacid and a polymer containing repeating units which contain one or more basic atoms. The complex is water-soluble and electrically conductive. The complex is useful in providing organic discharge layers for use in electronic applications and fabrications.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: January 4, 2000
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Jeffrey Donald Gelorme, Thomas Harold Newman, Niranjan Mohanlal Patel, David Earle Seeger
  • Patent number: 5990261
    Abstract: A low birefringent organic optical component prepared from a resin consisting essentially of one or more repetitive structural units selected from the group consisting of structures represented by general formula (1); ##STR1## wherein A is either of the groups below. ##STR2## The organic optical component can exhibit excellent transparency, heat resistance and mechanical strength as well as a low birefringence. Also provided is a novel aromatic polyamide with a low permitivity and excellent transparency, processability and thermal stability, besides excellent heat resistance inherent in an aromatic polyamide.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: November 23, 1999
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Wataru Yamashita, Tomomi Yoshimura, Atsushi Shibuya, Yoshihiro Sakata, Hideaki Oikawa, Keisuke Takuma, Masahiro Ohta
  • Patent number: 5980784
    Abstract: A method for producing a soluble conductive polymer having acidic groups, which comprises subjecting to electrolytic polymerization (a) at least one compound selected from the group consisting of acidic group-substituted anilines, acidic group-substituted pyrroles, acidic group-substituted thiophenes, acidic group-substituted furans, acidic group-substituted selenophenes, acidic group-substituted tellurophenes, acidic group-substituted isothianaphthenes, acidic group-substituted isobenzofurans, acidic group-substituted isoindolines, acidic group-substituted isobenzoselenophenes, acidic group-substituted isobenzotellurophenes, and their metal salts, ammonium salts and substituted ammonium salts in a solution containing (b) a basic compound.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: November 9, 1999
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Shigeru Shimizu, Masashi Uzawa, Takashi Saitoh, Shinichi Maeda
  • Patent number: 5973072
    Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenolic urethane reactive diluent. The phenolic urethane reactive diluent may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 26, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Frank N. Jones, Vijay Swarup, Ramachandran P. Subrayan, Suru Zhang
  • Patent number: RE37370
    Abstract: A method of emulsion polymerization of aniline or substituted anilines for making substituted or unsubstituted homopolymers and co-polymers of aniline. The method includes formation of an emulsion of aniline monomers, polar solvent, non-polar or weakly polar solvent and functionalized protonic acid, which is selected for its ability to perform two functions: acting as a surfactant and acting as a protonating agent (dopant) in producing an electrically conducting polymer. Then, an oxidant is added to polymerize the ingredients of the emulsion. This method provides polyaniline particles of highly crystalline and oriented morphologies of controlled aspect ratios.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 18, 2001
    Assignee: Neste Oy
    Inventors: Yong Cao, Jan-Erik Österholm