Two Or More Fluorine Atoms, E.g., Vinylidene Fluoride, Etc. Patents (Class 526/255)
  • Patent number: 10793706
    Abstract: A fluororubber composition comprising 10 to 50 parts by weight of wollastonite and 0.5 to 10 parts by weight of organic peroxide based on 100 parts by weight of peroxide-crosslinkable fluororubber, the wollastonite being needle-like or fibrous wollastonite having an average fiber diameter of 5 ?m or less and an average fiber length of 40 to 80 ?m, and the wollastonite being surface-treated with an amino silane coupling agent or an epoxy silane coupling agent. The fluororubber composition that can be suitably used as, for example, a molding material for normal/reverse rotation oil seals that allow continuous excellent sealing of fluid in the operation of normal and reverse rotation.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: October 6, 2020
    Assignee: NOK CORPORATION
    Inventor: Tomonori Furukawa
  • Patent number: 10556977
    Abstract: Methods are provided to efficiently produce butyl rubber via a slurry polymerization process. The process comprises providing at least two monomers, wherein at least one monomer is an isoolefin and at least one monomer is a multiolefin. The monomers are combined with an initiator and an organic diluent comprising 40-60 volume % of methyl chloride and 40-60 volume % of 1,1,1, 2-tetrafluoroethane and polymerized.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: February 11, 2020
    Assignee: ARLANXEO CANADA INC.
    Inventors: Steven John Teertstra, Gilles Arsenault
  • Patent number: 10221268
    Abstract: This vinyl polymer powder, which contains a vinyl polymer, has a glass transition temperature of at least 0° C. (where if there are a plurality of glass transition points, all of the glass transition temperatures are at least 0° C.), has no greater than 350 ppm of the total content of magnesium ions, calcium ions, aluminum ions, barium ions, and zinc ions, has no greater than 100 ppm of the content of ammonium ions, has an acid number of no greater than 2.5 mgKOH/g, and has a bulk density of 0.10-0.60 g/cm3.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: March 5, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masahiro Ueda, Shinji Matsuoka
  • Patent number: 9849642
    Abstract: A method for avoiding the entrapment of air bubbles (5) in a lens forming material, in particular in a low viscosity lens forming material, in an ophthalmic lens manufacturing process using mold halves (2; 3) each having a lens forming surface (21; 31) comprises electrostatically charging a predetermined portion of the lens forming surface (21; 31) of the mold half (2; 3) prior to the predetermined portion of the lens forming surface (21; 31) coming into contact with the lens forming material (4).
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 26, 2017
    Assignee: Novartis AG
    Inventors: Lukas Lomb, Roland Schmieder, Gabriela Cocora, Halina Heidrich, Axel Heinrich, Peter Hagmann
  • Patent number: 9453086
    Abstract: Described herein is a composition comprising an aqueous polymerization reaction product of fluorinated monomers and wherein the polymerization is initiated (i) in the absence of a fluorinated emulsifier and whereby no fluorinated emulsifier is added during polymerization or (ii) in the presence of an fluorinated emulsifier selected from: [Rf—O-L-COO-]i Xi+ (I) wherein L represents a linear or branched, non-fluorinated, partially fluorinated, or fully fluorinated alkylene group, Rf represents a linear or branched partially or fully fluorinated aliphatic group or a linear or branched partially or fully fluorinated aliphatic group interrupted with at least one oxygen atom, Xi+ represents a cation having the valence i and i is 1, 2 or 3; wherein the reaction product and/or the resulting aqueous phase are substantially free of di- and tri-alkylamines and substantially free of low molecular weight fluoroorganic compounds and methods thereof.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: September 27, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Michael Juergens, Gunther J. Kaempf, Harald Kaspar, Kai H. Lochhaas, Andre Streiter, Oleg Shyshkov, Tilman C. Zipplies, Herbert Koenigsmann
  • Patent number: 9388262
    Abstract: A process for producing a fluorinated olefin/vinyl alcohol copolymer, which comprises emulsion polymerizing a fluorinated olefin and a vinyl ether in the presence of an aqueous medium and an emulsifier and converting the repeating units based on the vinyl ether to the vinyl alcohol.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: July 12, 2016
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiromasa Yamamoto, Tatsuya Yamamoto
  • Patent number: 9377563
    Abstract: Presently described are articles, such as optical displays and protective films, comprising a (e.g. light transmissive) substrate having a surface layer comprising the reaction product of a mixture comprising a non-fluorinated binder precursor (e.g. of a hardcoat composition) and at least one polymerizable perfluoropolyether polymer. The resulting cured surface layer can advantageously exhibit low lint attraction in combination with low surface energy. Also described are one-step and two-step methods of synthesizing perfluoropolyether polymers having polymerizable ethylenically unsaturated groups.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: June 28, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Encai Hao, Zai-Ming Qiu, Yu Yang, Thomas P. Klun
  • Patent number: 9366653
    Abstract: Apparatus for determining a thickness of a wall of a pipe, featuring a signal processing module configured to respond to signaling containing information about traveling stress waves transmitted to and reflected back from a wall of a pipe by a sensor band that includes a series, ring or array having multiple transducers circumferentially arranged and mounted around, and attached to or clamped onto, an outside wall of the pipe; determine a profile of a thickness of the wall of the pipe corresponding to circumferential locations of the multiple transducers based on the signaling received from the sensor band, and the provides corresponding signaling containing information about the profile of the thickness of the wall of the pipe; and another module configured to receive the corresponding signaling and provide a visual indication of either data or a graph of the thickness of the wall of the pipe.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 14, 2016
    Assignee: CiDRA Corporate Services Inc.
    Inventors: Christian Victor O'Keefe, Robert J. Maron, Mark R. Fernald, Timothy J. Bailey, Alex M. Van der Spek, Michael A. Davis, John V. Viega
  • Patent number: 9335298
    Abstract: Apparatus for determining a thickness of a wall of a pipe, featuring a signal processing module configured to respond to signaling containing information about traveling stress waves transmitted to and reflected back from a wall of a pipe by a sensor band that includes a series, ring or array having multiple transducers circumferentially arranged and mounted around, and attached to or clamped onto, an outside wall of the pipe; and determine a profile of a thickness of the wall of the pipe corresponding to circumferential locations of the multiple transducers based on the signaling received from the sensor band; and one or more orientation or rotation sensors, each responding to its orientation in relation to its displacement on the pipe and to provide an orientation signal containing information about the same.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: May 10, 2016
    Assignee: CiDRA Corporate Services Inc.
    Inventors: Christian Victor O'Keefe, Robert J. Maron, Mark R. Fernald, Timothy J. Bailey, Alex M. Van der Spek, Michael A. Davis, John V. Viega
  • Patent number: 9328214
    Abstract: A fluorinated copolymer composition comprises ethylene/tetrafluoroethylene-containing copolymer and copper oxide. The ethylene/tetrafluoroethylene-containing copolymer comprises repeating units (A) based on ethylene, repeating units (B) based on tetrafluoroethylene and repeating units (C) based on another monomer, in a molar ratio of the repeating units (A) to the repeating units (B) of from 38/62 to 44/56, and in an amount of the repeating units (C) of from 0.1 to 2.6 mol % in all the repeating units of the ethylene/tetrafluoroethylene-containing copolymer. The content of the copper oxide is from 0.2 to 10 ppm based on the total weight of ethylene/tetrafluoroethylene-containing copolymer. The copper oxide has a BET surface area of from 5 to 30 m2/g. The volume flow rate of the fluorinated copolymer composition at 297° C. is from 15 to 150 g/10 min.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: May 3, 2016
    Assignee: Asahi Glass Company, Limited
    Inventors: Masao Umino, Sadao Kanetoku, Shinji Wada
  • Patent number: 9249246
    Abstract: The piezoelectric and barrier liner for a high-pressure storage vessel is made out of PVDF-TrFE copolymer and the amount of crystallinity in the liner material is over 30%, preferably 35% at least.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: February 2, 2016
    Assignee: Belenos Clean Power Holding AG
    Inventors: Fabiane Oliveira, Yves Leterrier, Jan-Anders Manson
  • Patent number: 9057370
    Abstract: A negative dead volume syringe comprising a body defining a chamber, a syringe tip disposed at a distal end of the chamber and having a tip passageway therethrough in open communication with the chamber, a rod extending from a first end within the chamber to a second end coupleable to a motor to produce bidirectional motion of the rod, and a plunger tip having a proximal portion coupled to the first end of the rod, a medial portion distally extending from said proximal portion and shaped to complement the tip passageway, and a tip extension distally extending from said medial portion and shaped to be received within a dead volume defined by a passageway of a valve coupleable to the syringe tip wherein the plunger tip ensures evacuation of fluid and air from the chamber, syringe tip, and dead volume of the valve upon distal displacement of the rod.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: June 16, 2015
    Assignee: Hamilton Company
    Inventors: Jason B. Mundt, Stephen E. Ewing
  • Publication number: 20150126393
    Abstract: The present invention relates to nanocones and nanomaterials. In one embodiment, the present invention provides a method of fabricating an array of nanostructures on a flexible film, comprising self-assembling a layer of particles on a film, and fabricating an array of nanostructures by etching and/or modifying the film. In another embodiment, the present invention provides a microarray comprising a nanomaterial comprising a film configured for an array of one or more nanocones.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Applicant: The Regents of the University of California
    Inventors: Robert M. Corn, Mana Toma, Gabriel Loget, Han Wai M. Fung
  • Patent number: 9023963
    Abstract: A method of producing a fluoropolymer by which a melt-processable fluoropolymer (A) having a specific unstable terminal group or groups (P) is subjected to melt-kneading in a kneader having a stabilization treatment zone to thereby produce a fluoro-polymer (B) resulting from conversion of the specific unstable terminal group or groups (P) to —CF2H. The specific unstable terminal group or groups (P) include alkoxycarbonyl groups, fluoroalkoxycarbonyl groups and/or carboxyl group quaternary nitrogen compound salts, the melt-kneading is carried out in the absence or presence of an alkali metal element or alkaline earth metal element, the content of the alkali metal element or alkaline earth metal element is not greater than 2 ppm of the composition under melt-kneading, and the melt-kneading in the stabilization treatment zone is carried out in the presence of water. A fluoro-polymerized material is also disclosed.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 5, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshiyuki Takase, Kenji Ishii, Shouji Fukuoka
  • Publication number: 20150118439
    Abstract: A robotic electrostatic painting system includes a barrier formed from an electrical insulating material and disposed between adjacent reservoirs for holding a conductive paint used in an electrostatic painting operation. The barrier is shaped and dimensioned with a central plate and upper and lower flanges to block every straight line path between the reservoirs to electrostatically separate the reservoirs and prevent the formation of a ground path or short circuit when there is a voltage difference between the reservoirs. The electrostatic separation of the reservoirs further prevents deterioration of conductive components of the robotic electrostatic painting system.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Inventors: Douglas B. Waineo, Ernest M. Otani
  • Publication number: 20150119523
    Abstract: The invention concerns a method for preparing block copolymers, comprising a step of controlled free-radical copolymerisation of trifluoroethylene with at least one additional monomer, different from trifluoroethylene, in the presence of a chain transfer agent, said chain transfer agent being a xanthate compound, a trithiocarbonate compound or a monoiodide compound. The invention also concerns the block copolymers likely to be obtained by this method.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 30, 2015
    Applicants: ARKEMA FRANCE, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE MONTPELLIER
    Inventors: Bruno Ameduri, Ali Alaaeddine
  • Publication number: 20150112015
    Abstract: The present invention is directed to partially fluorinated copolymers and the production thereof. More specifically, the copolymers, which are preferably produced by a solution polymerization process, preferably have at least three units, the first unit selected from 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene, the second unit having a polymerized monomer selected from the vinyl esters and vinyl ethers, and the third unit having a polymerized monomer derived from a hydroxyl group-containing vinyl ether. The resulting copolymer is environmentally friendly, has favorable molecular weight characteristics, and may be shipped economically in high concentration.
    Type: Application
    Filed: August 20, 2014
    Publication date: April 23, 2015
    Inventors: Wanchao Jiang, Shijun Feng, Siyuan Zhang, Yun Lin, Andrew J. Poss
  • Publication number: 20150110984
    Abstract: An object of the present invention it to provide a novel fluororesin that has excellent mechanical strength and chemical resistance, and very low permeability at high temperature. The fluorine resin a copolymer that includes copolymerized units derived from tetrafluoroethylene, vinylidene fluoride, and an ethylenically unsaturated monomer other than tetrafluoroethylene and vinylidene fluoride. The fluororesin has a storage modulus E?, as measured at 170° C. by a dynamic viscoelasticity analysis, in the range of 60 to 400 MPa.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takahiro KITAHARA, Takuma KAWABE
  • Publication number: 20150111031
    Abstract: A tetrafluoroethylene (TFE) copolymer film having a first endotherm between about 50° C. and about 300° C., a second endotherm between about 320° C. and about 350° C., and a third endotherm between about 350° C. and about 400° C. is provided. In exemplary embodiments, the third endotherm is approximately 380° C. In some embodiments, the second endotherm is between about 320° C. and about 330° C. or between about 330° C. and about 350° C. TFE copolymer films have a methane permeability less than about 20 ?g*micron/cm2/min. In addition, the dense articles have a void volume of less than about 20%. Methods for dense articles from core shell tetrafluoroethylene copolymers are also provided. The dense articles exhibit improved physical and mechanical properties such as adhesion and barrier properties.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 23, 2015
    Inventors: Lawrence A. Ford, Michael E. Kennedy, Shaofeng Ran, Todd S. Sayler, Gregory J. Shafer
  • Patent number: 9012580
    Abstract: A tetrafluoroethylene/hexafluoropropylene copolymer has improved moldability in melt extrusion molding, especially with significant reduction of defects in high-speed extrusion coating of an electrical wire. The tetrafluoroethylene/hexafluoropropylene copolymer is obtained by polymerization of at least tetrafluoroethylene and hexafluoropropylene selected from the group consisting of tetrafluoroethylene, hexafluoropropylene and a third monomer without mixing with the resin which has the melting point with the difference of 20 degree C. and more from the melting point of the tetrafluoroethylene/hexafluoropropylene copolymer; and has a complex viscosity of from 2.0×I03 to 10.0×I03 Pa*s and a storage modulus of from 0.1 to 3.5 Pa*s in melt viscoelasticity measurement under the condition of atmosphere temperature of 310 degree C. and angular frequency of 0.01 radian/second. The tetrafluoroethylene/hexafluoropropylene copolymer can be used in an electrical wire as a coating on a conductive core.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: April 21, 2015
    Assignees: Daikin Industries, Ltd., Daikin America, Inc.
    Inventors: Takahiro Kitahara, Tadaharu Isaka, Ryouichi Fukagawa, Keizou Shiotsuki
  • Patent number: 8997797
    Abstract: An object of the present invention it to provide a novel fluororesin that has excellent mechanical strength and chemical resistance, and very low permeability at high temperature. The fluorine resin a copolymer that includes copolymerized units derived from tetrafluoroethylene, vinylidene fluoride, and an ethylenically unsaturated monomer other than tetrafluoroethylene and vinylidene fluoride. The fluororesin has a storage modulus E?, as measured at 170° C. by a dynamic viscoelasticity analysis, in the range of 60 to 400 MPa.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: April 7, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Takahiro Kitahara, Takuma Kawabe
  • Patent number: 8969500
    Abstract: The present disclosure describes fluoropolymers having long chain branches and methods of making these fluoropolymers. These fluoropolymers may have improved melt processing properties. Shaped articles containing these fluoropolymers are also provided.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: March 3, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Harald Kaspar
  • Patent number: 8971707
    Abstract: Use in LAN cable applications, as materials for the coating of the primary cable and for the external jacket, of TFE thermoprocessable perfluoropolymers comprising perfluoroalkylvinylethers in the following amounts, expressed as percent by weight on the total of the monomers: a) 0-5.5% of perfluoromethylvinylether (PMVE); b) 0.4-4.5% of perfluoroethylvinylether (PEVE) and/or perfluoropropylvinylether (PPVE); when a) is present, then a)+b) ranges from 1.5% to 5.5% by weight on the total of the monomers; optionally c) 0-6% of hexafluoropropene (HFP); the TFE amount being the complement to 100% by weight.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 3, 2015
    Assignee: Solvay Solexis S.p.A.
    Inventors: Pasqua Colaianna, Giulio Brinati, Aldo Sanguineti
  • Publication number: 20150057419
    Abstract: A process is described comprising polymerizing at least one unsaturated monomer (e.g., fluorine substituted alkene monomer) in the presence of an azide radical initiator and a solvent, under reaction conditions and for a time sufficient to polymerize the at least one unsaturated monomer to form a polymer. The present disclosure provides a method for the synthesis of polymers with 100% azide chain end functionality, for living/controlled radical polymerization of unsaturated monomers (e.g., fluorine substituted alkene monomers) and for the synthesis of complex polymer architectures, using azide click reactions.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventor: Alexandru D. ASANDEI
  • Publication number: 20150044561
    Abstract: To provide a binder for a storage battery device whereby favorable adhesion is obtainable and swelling by an electrolytic solution can favorably be suppressed. A binder for a storage battery device, which is made of a fluorinated copolymer comprising structural units (A), structural units (B) and structural units (C), wherein the molar ratio of the structural units (C) to the total of all the structural units excluding the structural units (C) is from 0.01/100 to 3/100: structural units (A): structural units derived from a monomer selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride and chlorotrifluoroethylene; structural units (B): structural units derived from ethylene or propylene; and structural units (C): structural units derived from a C5-30 organic compound having at least two double bonds and at least one of the double bonds being a double bond of a vinyl ether group or a double bond of a vinyl ester group.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takehiro KOSE, Mizuna TOYODA, Hiroki NAGAI
  • Patent number: 8952115
    Abstract: An object of the present invention is to provide a method for producing a fluoropolymer which produces a large number of particles with a small particle size using a specific non-fluorous compound having surfactant ability. The method for producing a fluoropolymer includes aqueous dispersion polymerization of a monomer including at least one fluoroolefin in the presence of a compound represented by the formula: CH2?CHCH2—O—(C?O)CHXCH2COO(CH2)nCH3 (in the formula, X is H or SO3Y wherein Y is NH4 or an alkaline metal; and n is an integer of 0 to 19.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: February 10, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Katsuhiko Imoto, Shumi Nishii, Yoshinari Fukuhara
  • Patent number: 8937132
    Abstract: Provided is a material that can be easily biaxially oriented, homogeneously stretched even with a high draw ratio, and formed into a PTFE porous membrane with low pressure loss. The present invention relates to a polytetrafluoroethylene mixture comprising: a fibrillable modified polytetrafluoroethylene; and a fibrillable polytetrafluoroethylene homopolymer, the polytetrafluoroethylene homopolymer having strength at break of 25 N or higher.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 20, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Yasuhiko Sawada, Shunji Kasai, Taku Yamanaka, Yoshiyuki Shibuya, Kunihiko Inui, Shinichi Chaen
  • Publication number: 20150017532
    Abstract: A binder, including a fluoropolymer, the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR? (R and R? are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR?— (R? represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s. Also disclosed is a positive electrode mixture and a negative electrode mixture containing the binder, a positive electrode, a negative electrode and a lithium ion secondary cell.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 15, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Iguchi, Takahiro Kitahara, Takuji Ishikawa, Toshiki Ichisaka, Kazunobu Uchida, Tomoyuki Fukatani, Manabu Fujisawa, Kenji Ichikawa
  • Patent number: 8927668
    Abstract: To provide a fluorinated elastic copolymer which is excellent in crosslinking reactivity and extrusion moldability and which is curable to obtain a rubber excellent in permanent compression set resistance, base resistance and oil resistance and particularly suitable as a covering material for electric wires. A fluorinated elastic copolymer obtained by copolymerizing tetrafluoroethylene, propylene and optionally another monomer, wherein the molar ratio (a)/(b) of repeating units (a) derived from tetrafluoroethylene to repeating units (b) derived from propylene in the fluorinated elastic copolymer is from 60/40 to 75/25, and repeating units (c) derived from said another monomer is from 0 to 10 mol % in the fluorinated elastic copolymer.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: January 6, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Takehiro Kose, Mitsuru Seki, Go Mizuno
  • Patent number: 8927666
    Abstract: The present invention relates to the polymerization and copolymerization of monomers in the presence of fluorinated propylene solvents. More particularly, the present invention relates to the use of polymerization mediums suitable to polymerize one or more monomers to form polymers and/or copolymers, with a tetrafluoropolypropylene being used as a solvent or diluent for the one or more monomers.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 6, 2015
    Assignee: Honeywell International Inc.
    Inventors: Raymond H. Thomas, Hang T. Pham, Rajiv R. Singh
  • Publication number: 20140363715
    Abstract: To provide a binder for a storage battery device, whereby good adhesion in an electrode and flexibility are obtainable, and it is possible to realize good charge and discharge characteristics when used for a secondary battery. A binder for a storage battery device, which is made of a fluorinated copolymer comprising structural units (a) derived from tetrafluoroethylene and structural units (b) derived from propylene, wherein the molar ratio (a)/(b) is from 40/60 to 50/50, and the total of the structural units (a) and (b) is at least 90 mol % in all structural units.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Mizuna TOYODA, Takehiro KOSE, Hiroki NAGAI
  • Patent number: 8906821
    Abstract: A catalyst composition comprising a cation and an anion of the formula Anq?Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+is an organo onium, and Aq?is an anion, provided that at least one Aq?is selected from the formula (I) wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R? groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R? can be the same as R, with the proviso that R? cannot be halo, and wherein the catalyst composition is essentially free of hydrocarbon containing alcohol. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Werner M. A. Grootaert, Kim M. Vogel, Dennis E. Vogel
  • Patent number: 8901264
    Abstract: To provide a copolymer which can impart sufficient dynamic water repellency, after air-drying water repellency and friction durability to a surface of an article, and which has low impact on the environment, a method for producing the same, a water repellent composition and an article excellent in dynamic water repellency, after air-drying water repellency and friction durability.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: December 2, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazunori Sugiyama, Toyomichi Shimada, Nobuyuki Otozawa, Yuuichi Oomori, Minako Shimada
  • Patent number: 8895681
    Abstract: Amorphous hydrofluoroolefin telomers are prepared by a free-radical polymerization process conducted at high temperature and pressure in the presence of non-monomeric chain transfer agent.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: November 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Jon Lee Howell, Clay Woodward Jones, Robert Clayton Wheland
  • Publication number: 20140343239
    Abstract: To provide a process for producing a PTFE fine powder having a high bulk density, whereby the concentration of non-coagulated PTFE in coagulation wastewater is low. Tetrafluoroethylene is emulsion-polymerized in the presence of an aqueous medium, at least one fluorinated emulsifier selected from the group consisting of a C4-7 fluorinated carboxylic acid having from 1 to 4 etheric oxygen atoms in its main chain, and its salts, and a radical polymerization initiator, to produce a polytetrafluoroethylene emulsion; the obtained polytetrafluoroethylene emulsion is adjusted to a polytetrafluoroethylene concentration of from 10 to 25 mass %, followed by coagulation and stirring at a coagulation temperature of from 5 to 18° C. to separate a wet-state polytetrafluoroethylene fine powder; and the obtained wet-state polytetrafluoroethylene fine powder is dried to produce a polytetrafluoroethylene fine powder.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Shinya HIGUCHI, Shigeki Kobayashi, Hiroki Nagai
  • Publication number: 20140335634
    Abstract: A mold release film, which is adapted to be disposed on the cavity surface of a mold to form a resin-encapsulated portion by encapsulating a semiconductor element of a semiconductor device with a curable encapsulation resin, has a tensile modulus of elasticity of from 10 to 24 MPa at 132° C. as measured in accordance with JIS K 7127, and a peak peel resistance of at most 0.8 N/25 mm.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Wataru KASAI, Yoshiaki HIGUCHI, Masakazu ATAKU, Daisuke TAGUCHI, Satoshi OTSUGU
  • Patent number: 8883947
    Abstract: A vinylidene fluoride homopolymer represented by the formula (4): CF3-(A1)-I??(4) wherein A1 represents a structural unit of vinylidene fluoride homopolymer which includes crystal form I alone or as main component and has a number average degree of polymerization of 5 to 12.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: November 11, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Takayuki Araki, Tetsuhiro Kodani
  • Patent number: 8883313
    Abstract: The present invention provides a polytetrafluoroethylene powder having moldability/processability as well as electrical characteristics in microwave bands. The present invention is a modified polytetrafluoroethylene powder which has (1) a dielectric loss tangent at 12 GHz of not higher than 2.0×10?4 and (2) a cylinder extrusion pressure of not higher than 45 MPa at a reduction ratio of 1600.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: November 11, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshinori Nanba, Yasuhiko Sawada, Shunji Kasai, Shuji Tagashira, Makoto Ono, Takahiro Taira, Hiroyuki Yoshimoto
  • Patent number: 8877870
    Abstract: A fluorinated elastic copolymer which has iodine atoms, bromine atoms, or both iodine and bromine atoms, at its molecular terminals and which includes repeating units (a) based on tetrafluoroethylene, repeating units (b) based on a fluorinated monomer having one polymerizable unsaturated bond (provided that tetrafluoroethylene is excluded), and repeating units (c) based on a fluorinated monomer having at least two polymerizable unsaturated bonds, wherein the ratio (molar ratio) of the repeating units (a) to the repeating units (b) is (a)/(b)=40/60 to 90/10, and the proportion of the repeating units (c) based on the total amount of the repeating units (a) and the repeating units (b) is from 0.01 to 1 mol %.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: November 4, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroshi Funaki, Kunio Watanabe, Keigo Matsuura, Ng Soon Yeng
  • Patent number: 8865839
    Abstract: Provided is a material that can be easily biaxially oriented, homogeneously stretched even with a high draw ratio, and formed into a polytetrafluoroethylene porous membrane with low pressure loss. The present invention relates to a polytetrafluoroethylene mixture comprising: a modified polytetrafluoroethylene; and a fibrillable polytetrafluoroethylene homopolymer, the modified polytetrafluoroethylene having an extrusion pressure to a cylinder, at a reduction ratio of 1600, of 70 MPa or higher.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 21, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Yasuhiko Sawada, Shunji Kasai, Taku Yamanaka, Makoto Ono, Yoshiyuki Shibuya, Kunihiko Inui, Shinichi Chaen
  • Publication number: 20140296438
    Abstract: The invention relates to a polyvinylidene fluoride polymer having an ultra-high molecular weight, and unexpected physical properties. The ultra-high molecular weight polymer is clear, has a lower melting point, reduced crystallinity, excellent impact resistance, and a high elongation at the yield point. The ultra-high molecular weight polyvinylidene fluoride can be alone, or blended with other polymers, in final applications and articles.
    Type: Application
    Filed: June 11, 2014
    Publication date: October 2, 2014
    Inventor: Ramin Amin-Sanayei
  • Publication number: 20140296367
    Abstract: To provide an optical member having an excellent transparency and heat resistance and further having favorable light resistance as compared with a molded product made of a conventional ethylene/tetrafluoroethylene copolymer, a process for producing the same, and an article provided with the optical member. An optical member made of a molded product containing a crosslinked product of an ethylene/tetrafluoroethylene copolymer comprising units (A) based on tetrafluoroethylene, units (B) based on ethylene and units (C) based on CH2?CH—CnF2n+1 (wherein n is an integer of from 2 to 10), wherein the molar ratio ((A)/(B)) of the to above units (A) to the above units (B) is from 50/50 to 66/34, and the molar ratio ((C)/{(A)+(B)}) of the above units (C) to the sum of the above units (A) and the above units (B) is from 4.0/100 to 10/100.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Daisuke TAGUCHI, Masakazu ATAKU, Kazuo HAMAZAKI
  • Patent number: 8835551
    Abstract: Iodine containing amorphous fluoropolymers having at least one fluoropolymer with a cure site, where the fluoropolymer has a Mooney viscosity of 2 or less (ML 1+10) at 100° C. according to ASTM D1646, and a peel strength to a roll mill of 10 dN/cm or less and methods for making such iodine containing amorphous fluoropolymers are described. Articles derived from the cured product of such iodine containing amorphous fluoropolymers are also described. Solutions, dispersions and coatings derived from such iodine containing amorphous fluoropolymers are also described.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: September 16, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Tatsuo Fukushi, Peter J. Scott, Cynthia N. Ferguson, Werner M. A. Grootaert, Denis Duchesne, Yeng Moua, Larry A. Last, Terri A. Shefelbine, Luke M. B. Rodgers
  • Publication number: 20140256895
    Abstract: A process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating the fluoropolymer from the aqueous medium to obtain fluoropolymer resin. The process comprises: contacting the aqueous fluoropolymer dispersion with sorbent.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 11, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: PAUL DOUGLAS BROTHERS, GREGORY ALLEN CHAPMAN, SUBHASH VISHNU GANGAL
  • Patent number: 8829132
    Abstract: To provide an ethylene/tetrafluoroethylene copolymer which is excellent in heat resistance and flexibility. An ethylene/tetrafluoroethylene copolymer comprising repeating units (A) based on tetrafluoroethylene and repeating units (B) based on ethylene in a ratio of repeating units (A)/repeating units (B)=66/34 to 75/25 (molar ratio) and as an optional component, repeating units (C) based on a monomer represented by CH2?CX(CF2)nY (wherein each of X and Y which are independent of each other is a hydrogen atom or a fluorine atom, and n is from 2 to 8) in an amount of from 0 to 1 mol % based on the total number of moles of the repeating units (A) based on tetrafluoroethylene and the repeating units (B) based on ethylene, and having a volume flow rate measured at 297° C. of from 4 to 1,000 mm3/sec and an elastic modulus of at most 500 MPa.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: September 9, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Daisuke Taguchi, Shigeru Aida
  • Publication number: 20140228531
    Abstract: The invention pertains to a method for making a fluoropolymer comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in the presence of at least one cyclic fluorocompound of the following formula (I): wherein X1, X2, X3, equal or different from each other are independently selected among H, F, and C1-6 (per)fluoroalkyl groups, optionally comprising one or more catenary or non-catenary oxygen atoms; L represents a bond or a divalent group; RF is a divalent fluorinated C1-3 bridging group; Y is a hydrophilic function selected among anionic functionalities, cationic functionalities and non-ionic functionalities.
    Type: Application
    Filed: March 5, 2014
    Publication date: August 14, 2014
    Applicant: SOLVAY SOLEXIS S.p.A.
    Inventors: Giuseppe MARCHIONNI, Vito Tortelli, Ivan Wlassics, Valeri Kapeliouchko
  • Publication number: 20140207075
    Abstract: Provided is a PTFE skived film capable of exhibiting, with a single layer, sliding properties, barrier properties with regard to a liquid contact surface, and excellent tear resistance during injection molding. This skived film is characterized by being obtained by cutting a polytetrafluoroethylene block or a modified polytetrafluoroethylene block subjected to a thermal fusion treatment under reduced pressure or subjected to a pressurized thermal fusion treatment after being subjected to fusion under reduced pressure.
    Type: Application
    Filed: May 20, 2011
    Publication date: July 24, 2014
    Applicant: COKI ENGINEERING INC.
    Inventor: Akira Yotsutsuji
  • Patent number: 8785580
    Abstract: The invention relates to a polyvinylidene fluoride polymer having an ultra-high molecular weight, and unexpected physical properties. The ultra-high molecular weight polymer is clear, has a lower melting point, reduced crystallinity, excellent impact resistance, and a high elongation at the yield point. The ultra-high molecular weight polyvinylidene fluoride can be alone, or blended with other polymers, in final applications and articles.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: July 22, 2014
    Assignee: Arkema Inc.
    Inventor: Ramin Amin-Sanayei
  • Patent number: 8785581
    Abstract: A noncrystalline fluoroelastomer which is a copolymer consisting essentially of vinylidene fluoride and a fluoromonomer represented by the general formula (1): CH2?CFRf??(1) wherein Rf is a straight or branched fluoroalkyl group containing 1 to 12 carbon atoms, and has a vinylidene fluoride units/fluoromonomer units mol ratio of 78/22 to 22/78 and a glass transition temperature of not higher than 25° C.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: July 22, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Shigeru Morita, Masanori Kitaichi, Shouji Fukuoka, Daisuke Ota
  • Publication number: 20140187728
    Abstract: To provide a process for producing a fluorinated olefin/vinyl alcohol copolymer having a high molecular weight which can be formed into a strong film with high productivity. A process for producing a fluorinated olefin/vinyl alcohol copolymer, which comprises emulsion polymerizing a fluorinated olefin and a vinyl ether in the presence of an aqueous medium and an emulsifier and converting the repeating units based on the vinyl ether to the vinyl alcohol.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 3, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiromasa YAMAMOTO, Tatsuya YAMAMOTO