From Fluorine-containing Monomer Patents (Class 524/544)
  • Publication number: 20100112482
    Abstract: A fluorinated monomer of cyclic acetal structure has formula (1) wherein R is a C1-C20 alkyl group which may be substituted with halogen or separated by oxygen or carbonyl, and Z is a divalent organic group which forms a ring with alkylenoxy and contains a polymerizable unsaturated group. A polymer derived from the fluorinated monomer may be endowed with appropriate water repellency, water sliding property, lipophilicity, acid lability and hydrolyzability and is useful in formulating a protective coating composition and a resist composition.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 6, 2010
    Inventors: Takeru WATANABE, Satoshi SHINACHI, Takeshi KINSHO, Koji HASEGAWA, Yuji HARADA, Jun HATAKEYAMA, Kazunori MAEDA, Tomohiro KOBAYASHI
  • Patent number: 7709563
    Abstract: An aqueous dispersion type fluorine-containing water- and oil-repellent composition containing a polymer of a perfluoroalkyl group-containing ethylenically unsaturated monomer dispersed in an aqueous medium. The composition also contains a nonionic surfactant having an HLB value of at most 11 and a cationic surfactant. A homopolymer of at least one monomer constituting the polymer has Tg of at most 50° C.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: May 4, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Kouji Kubota, Takuya Yoshioka, Masato Kashiwagi
  • Publication number: 20100105825
    Abstract: To provide a method for producing a water/oil repellent composition which can impart water/oil repellency to a surface of an article and has excellent durability (wash durability and heavy-rain durability) and an article which has water/oil repellency and is less susceptible to deterioration of water/oil repellency when it is washed or in heavy rain. A method for producing a water/oil repellent composition which comprises polymerizing a monomer component comprising the following monomer (a) in coexistence with the following compound (x) in a medium in the presence of a surfactant and a polymerization initiator: monomer (a) is a compound of the formula (Z—Y)nX wherein Z is a C1-20 polyfluoroalkyl group or the like, Y is a bivalent organic group or a single bond, n is 1 or 2, and X is a polymerizable unsaturated group; and the compound (x) is a compound having at least two groups of —(CH2)a—CHR1—(CH2)b—SH, wherein R1 is a methyl group or an ethyl group, a is an integer of from 0 to 2, and b is 0 or 1.
    Type: Application
    Filed: January 6, 2010
    Publication date: April 29, 2010
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kazunori Sugiyama, Yuuichi Oomori, Minako Shimada
  • Patent number: 7705074
    Abstract: A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A?] Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A? is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: April 27, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul Douglas Brothers, Subhash Vishnu Gangal
  • Patent number: 7705085
    Abstract: A composition includes an elastomeric composition. The elastomeric composition can include a fluoroelastomer composition, and the elastomeric composition is substantially free of an epichlorohydrin composition. The composition can further include a filler material which includes a reinforcement-grade carbon black. The composition can further include a peroxide curative.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: April 27, 2010
    Assignee: 3M Innovative Properties Company
    Inventor: Pradip K. Bandyopadhyay
  • Publication number: 20100099804
    Abstract: Disclosed herein are polymer compounds, a method for preparing thereof. More specifically, provided are polymer compounds with well-connected, narrow size distribution free-volume element and a method for preparing the polymer compounds by thermal rearrangement for aromatic polyimides containing ortho-positioned functional groups in the solid state.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 22, 2010
    Applicant: Industry-University Cooperation Foundation, HANYANG UNIVERSITY
    Inventors: Young-Moo LEE, Ho-Bum Park, Chul-Ho Jung, Sang-Hoon Han
  • Patent number: 7700700
    Abstract: This invention relates to a heterogeneous copolymer composition of polyvinylidene fluoride with one or more perfluoroalkyl ethers. These copolymers have excellent low temperature impact properties, while maintaining a high melting point.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: April 20, 2010
    Assignee: Arkema Inc.
    Inventors: Roice Wille, Gregory O'Brien
  • Publication number: 20100093898
    Abstract: The invention provides a curable fluoroelastomeric composition comprising: (i) a fluoropolymer comprising at least one cure site monomer that comprises at least one cyano group; (ii) a cure system comprising a functionalized biphenyl-based compound and at least one of: a dioxime compound represented by the formula (I): HON?R1?NOH wherein R1 is chosen from an alkyl group having 1 to 10 carbon atoms and an aryl group having 1 to 10 carbon atoms; a monoamidine-based compound represented by formula (IV): wherein Y is chosen from a substituted or unsubstituted alkyl, aryl, or aralkyl group or an unsubstituted or substituted fully or partially halogenated alkyl, aryl, or aralkyl group having to 22 carbon atoms; R4 is chosen from a hydrogen atom or a substituted or unsubstituted lower alkyl group of 1 to 6 carbon atoms, or an amino group; R5 is independently chosen from hydrogen atom, a substituted or unsubstituted lower alkyl group of 1 to 6 carbon atoms, an amino group or an hydroxyl group; and/or a p
    Type: Application
    Filed: April 8, 2009
    Publication date: April 15, 2010
    Applicants: Greene, Tweed of Delaware, Inc., Daikin Industries, Ltd.
    Inventors: Ronald R. Campbell, Eugene Gurevich
  • Publication number: 20100093919
    Abstract: Disclosed is a soil release agent composition essentially containing a fluorine-containing copolymer, which is essentially composed of (a) a fluorine-containing monomer having a fluoroalkyl group, (b) a polyalkyleneglycol (meth)acrylate, (c) a monomer having an acetoacetyl group and (d) a monomer having a cation-donating group, and a crosslinking agent. This soil release agent composition imparts a base material such as a fiber fabric with excellent oil repellency, antifouling property and soil releasing property, while maintaining washing resistance of the base material. The monomer (a) is preferably represented by the following formula (1).
    Type: Application
    Filed: January 22, 2008
    Publication date: April 15, 2010
    Applicant: Daikin Industries, Ltd.
    Inventor: Norimasa Uesugi
  • Patent number: 7696268
    Abstract: The present invention provides a method of producing a fluoropolymer aqueous dispersion by which the fluorine-containing emulsifier contained in the fluoropolymer aqueous dispersion as obtained after polymerization can be efficiently removed as well as a fluoropolymer aqueous dispersion low in fluorine-containing emulsifier concentration. The present invention is a method of producing a fluoropolymer aqueous dispersion which comprises carrying out a concentration treatment comprising a concentration operation of a pretreatment fluoropolymer aqueous dispersion, wherein the pretreatment fluoropolymer aqueous dispersion is obtained by carrying out a polymerization in an aqueous medium in the presence of a fluorine-containing surfactant (A), the fluorine-containing surfactant (A) is a fluorine-containing surfactant having an octanol/water partition coefficient of 1.5 to 3.5.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: April 13, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Nobuhiko Tsuda, Chie Sawauchi, Yasuhiko Sawada, Tetsuo Shimizu
  • Patent number: 7691936
    Abstract: Fine fluoropolymer powders substantially fluorinated surfactant free, in particular fluorinated ionic surfactants, preferably perfluorooctanoic acid or its salts, comprising an anionic polyelectrolyte.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: April 6, 2010
    Assignee: Solvay Solexis S.p.A.
    Inventors: Marco Malvasi, Stefano Ferrero, Valeri Kapeliouchko
  • Publication number: 20100080962
    Abstract: An object of the present invention is to provide an ink composition that enables high-quality images having no white stripes or roughness to be obtained even when the images are printed on printing paper, such as art paper, at low resolution, and the ink composition is an ink composition for ink jet recording containing at least a coloring material, water, an alcohol solvent, and a surfactant, wherein the alcohol solvent contains an alkanediol sparingly soluble in water, a water-soluble 1,2-alkanediol, and a water-soluble 1,3-alkanediol.
    Type: Application
    Filed: December 19, 2008
    Publication date: April 1, 2010
    Inventors: Shuichi KOGANEHIRA, Hironori Sato
  • Publication number: 20100080931
    Abstract: A fluoropolymer liquid composition including a fluoropolymer liquid (A) which includes a liquid medium and a crosslinkable functional group-containing crosslinkable fluoropolymer. The fluoropolymer liquid (A) is a fluoropolymer liquid dispersion (AD) having, dispersed in a liquid dispersion medium, particles of a crosslinkable fluoropolymer (PD) containing acid/acid salt groups or organic groups capable of undergoing hydrolysis and thus being converted to carboxyl groups, or a fluoropolymer solution (AS) having, dissolved in a fluorosolvent or an alcohol/water mixed solvent, a crosslinkable fluoropolymer (PS) containing acid/acid salt groups or acid/acid salt groups precursors. Further, the crosslinkable functional group is a cyano group, —I or —Br.
    Type: Application
    Filed: December 2, 2009
    Publication date: April 1, 2010
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuya ARASE, Masayoshi TATEMOTO
  • Publication number: 20100081747
    Abstract: The present invention provides a polymer composition wherein inorganic particles are uniformly dispersed at the nano level in the polymer without having said inorganic particles being surface-treated. It further provides a method for manufacturing a polymer composition wherein a co-aggregate which is obtained by uniformly mixing polymer dispersion with an inorganic particle colloidal solution and co-aggregating the polymer primary particles and inorganic particles which are heterogeneous particles, is separated from the solvent and dried so that the inorganic particles are uniformly dispersed at the nano level in the polymer; and the polymer composition which is obtained by said method.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 1, 2010
    Inventors: Pham H. Nam, Jeong Chang Lee
  • Patent number: 7683118
    Abstract: A process for preparing a fluoropolymer dispersion that is substantially anionic fluorinated surfactant free includes adding to a fluoropolymer dispersion a nonionic surfactant having a cloud point (CP) between 40 and 80° C. in a concentration of 1.5% to 50% by weight of the fluoropolymer, heating the dispersion up to a temperature Tc in a range of CP±10°C., decanting the dispersion in a reactor at Tc until obtaining a lower aqueous phase containing a concentrated fluoropolymer dispersion and an upper aqueous phase substantially not containing the fluoropolymer dispersion, washing the decanted dispersion with a solution of water and nonionic surfactant having a concentration of the nonionic surfactant of 0.5% to 50% by weight of the fluoropolymer, removing the upper aqueous phase from the upper part of the reactor, and discharge and recovery of the fluoropolymer dispersion.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: March 23, 2010
    Assignee: Solvay Solexis S.p.A.
    Inventors: Alberto Mirigliani, Evasio Deregibus, Valeri Kapeliouchko
  • Publication number: 20100068434
    Abstract: Compositions comprising a substrate having a layer thereover, the layer comprising a fluoropolymer and a nanofiller. Compositions comprising a substrate having a layer thereover, the layer comprising a fluoropolymer and a clay material. Methods for preparing a composite coating material solution, comprising: preparing a first solution comprising a fluoropolymer and an acetate; preparing a second solution comprising a clay material and a nanofiller suspension; and mixing the first and second solutions to form a composite coating material solution. Methods for applying a composite material layer to a substrate, comprising depositing a solution onto a substrate, wherein the solution comprises a clay material and fluoropolymer. Methods for applying a composite material layer to a substrate, comprising depositing a solution onto a substrate, wherein the solution comprises a fluoropolymer and a nanofiller.
    Type: Application
    Filed: August 10, 2009
    Publication date: March 18, 2010
    Inventors: Adam P. Steele, Ilker Bayer, Eric Loth
  • Publication number: 20100069565
    Abstract: To provide an antifouling composition which is a fluorine-type antifouling composition using a short chain perfluoroalkyl group and which is excellent in antifouling properties and water/oil repellency and presents good durability against washing. An antifouling composition comprising a fluorocopolymer which comprises from 30 to 65 mass % of polymerized units (a) having a C1-6 perfluoroalkyl group, from 1 to 67 mass % of polymerized units (b1) having —(C2H4O)— and from 3 to 34 mass % of polymerized units (b2) having —(C4H8O)—, wherein the content of —(C2H4O)— is from 20 to 65 mass %, and the content of —(C4H8O)— is from 2 to 13 mass %.
    Type: Application
    Filed: November 20, 2009
    Publication date: March 18, 2010
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiroyuki HARA, Shuichiro Sugimoto, Takao Hirono, Takashige Maekawa
  • Publication number: 20100069564
    Abstract: To provide a water/oil repellent composition which can give water/oil repellency to a surface of an article and has excellent durability (wash durability and heavy-rain durability), a method for producing such a composition, and an article which has water/oil repellency and is less susceptible to deterioration of water/oil repellency when it is washed or in heavy rain. A water/oil repellent composition which comprises a copolymer having polymerized units derived from monomer (a), polymerized units derived from monomer (b) and polymerized units derived from monomer (c). Here, monomer (a) is a compound represented by the formula: (Z—Y)nX; wherein Z is a C1-6 perfluoroalkyl group or the like; Y is a bivalent organic group or a single bond; n is 1 or 2; and X is a polymerizable unsaturated group; monomer (b) is a (meth)acrylate having no polyfluoroalkyl group and having an C20-30 alkyl group; and monomer (c) is vinylidene chloride.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 18, 2010
    Applicant: ASAHI GLASS CO., LTD.
    Inventors: Minako Shimada, Kazunori Sugiyama, Yuuichi Oomori
  • Patent number: 7678858
    Abstract: The present invention provides a fluorine containing elastomer composition which does not affect heat resistance and processability, is little in weight change for both of fluorine plasma and oxygen plasma exposed at the production step of a semiconductor and can inhibit generation of foreign objects (particles) significantly in those steps, and a molded article comprising the composition. The present invention relates to a fluorine containing elastomer composition for the seal material of a semiconductor production device comprising a fluorine containing elastomer and a compound having plasma antiaging effects.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: March 16, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Hiroyuki Tanaka, Kouji Fukuyama, Tsuyoshi Noguchi
  • Patent number: 7678859
    Abstract: Provided is a method comprising polymerizing at least one fluorinated monomer in an aqueous emulsion polymerization in the presence of a carbosilane surfactant having at least one hydrophobic part, wherein the hydrophobic part has at least one silicon atom, and having at least one hydrophilic part, with the proviso that the carbosilane contains no Si—O bonds.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: March 16, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Peter Bissinger, Michael C. Dadalas, Klaus Hintzer, Ludwig Mayer, Werner Schwertfeger, Tilman C. Zipplies
  • Patent number: 7678848
    Abstract: A process to substantially remove fluorinated anionic surfactants from fluoropolymer dispersions comprising the following steps: a) addition to the fluoropolymer dispersion of one or more non fluorinated surfactants; b) contact of the dispersion with an anionic exchanger; c) separation of the dispersion from the anionic exchanger and recovery of the dispersion substantially fluorinated anionic surfactant free.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 16, 2010
    Assignee: Solvay Solexis S.p.A.
    Inventors: Marco Malvasi, Valeri Kapeliouchko
  • Patent number: 7674544
    Abstract: A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: March 9, 2010
    Assignee: Sony Corporation
    Inventors: Berthold Nuber, Bjoern Pietzak
  • Patent number: 7671123
    Abstract: A fluororesin aqueous dispersion comprising from 20 to 70 mass % of microparticles of a fluororesin and from 1 to 12 mass %, based on the mass of the fluororesin, of a non-ionic surfactant represented by the formula (1): R1—O-A-X??(1) wherein R1 is a C6-18 alkyl group, O is an oxygen atom, A is a polyoxyalkylene group comprising from 1 to 3 oxybutylene groups and from 5 to 20 oxyethylene groups, and X is a hydrogen atom or a methyl group.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: March 2, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Jun Hoshikawa, Shinya Higuchi, Yasuhiko Matsuoka, Nobuyuki Yamagishi
  • Patent number: 7671111
    Abstract: A process for reducing the fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion by passing dispersion through a first fixed bed of anion exchange resin to reduce fluorosurfactant content. The first fixed bed has a working zone which moves though the column as the ion exchange resin is saturated. The process includes monitoring a property of the dispersion as the dispersion exits the fixed bed to determine break though of the working zone indicating saturation of the fixed bed. The property being monitored is selected from the group consisting of pH and conductivity.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: March 2, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Charles Joseph Noelke, Steven H. Swearingen, David William Johnson
  • Publication number: 20100044050
    Abstract: A composition comprising a nonionic fluorinated polymeric surfactant having a weight average molecular weight of least 100,000 grams per mole, the nonionic fluorinated polymeric surfactant comprising: divalent units independently represented by formula (I): in a range from 30% to 65% by weight, based on the total weight of the nonionic fluorinated polymeric surfactant; and divalent units independently represented by formula (II): in a range from 70% to 35% by weight, based on the total weight of the nonionic fluorinated polymeric surfactant. Rf is a perfluoroalkyl group having from 3 to 4 carbon atoms; R and R2 are each independently hydrogen or alkyl of 1 to 4 carbon atoms; R1 is alkyl of 16 to 24 carbon atoms; and n is an integer from 2 to 11. Foams comprising the nonionic fluorinated polymeric surfactant and a liquid hydrocarbon and methods of making and using the foams are also disclosed.
    Type: Application
    Filed: January 18, 2008
    Publication date: February 25, 2010
    Inventors: Patricia M. Savu, Michael J. Sierakowski
  • Patent number: 7666929
    Abstract: A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion. The process includes providing a fixed bed of anion exchange resin having anion exchange groups with counter ions. The anion exchange resin is treated to replace at least some the counter ions with counter ions of non-fluorinated anionic surfactant. The stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion is passed through the treated fixed bed of anion exchange resin.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: February 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Kenneth Scott Teter, David William Johnson
  • Patent number: 7666927
    Abstract: A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion comprising contacting the stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion with an anion exchange resin comprising a polymer and quaternary ammonium functional groups to reduce fluorosurfactant content, the functional groups being resistant to degradation which releases trialkylamines. The anion exchange resin is separated from the dispersion after the fluorosurfactant content has been reduced.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: James R. Combes, David William Johnson, Stephen Thomas Breske
  • Patent number: 7666964
    Abstract: A copolymer comprises repeating units derived from at least one co-reactant comprising two or more mercapto functional groups, and repeating units derived from a fluoroacrylate comprising the reaction product of: (a) at least one fluorochemical alcohol represented by the formula: C4F9—X—OH wherein: R=hydrogen or an alkyl group of 1 to 4 carbon atoms, m=2 to 8, Rf=CnF2n+1, n=1 to 5, y=0 to 6, and q=1 to 8; (b) at least one unbranched symmetric diisocyanate; and (c) at least one hydroxy-terminated alkyl (meth)acrylate or 2-fluoroacrylate monomer having 2 to about 30 carbon atoms in its alkylene portion.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: February 23, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Zai-Ming Qiu, John C. Clark, Ramesh C. Kumar
  • Patent number: 7666928
    Abstract: A process for reducing fluorosurfactant content of a fluorosurfactant-containing aqueous fluoropolymer dispersion stabilized with nonionic surfactant. The process includes reducing the fluorosurfactant content of the stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion to a predetermined level to provide a reduced surfactant dispersion, adding non-fluorinated anionic surfactant to the reduced fluorosurfactant dispersion, and concentrating the reduced fluorosurfactant dispersion. The non-fluorinated anionic surfactant is added in stages wherein a first portion is added to the dispersion prior to concentrating and a second portion of the non-fluorinated anionic surfactant is added to the dispersion after concentrating.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: February 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: David William Johnson, Robert John Cavanaugh
  • Patent number: 7662886
    Abstract: Processable rubber compositions contain a vulcanized elastomeric material dispersed in a matrix of a thermoplastic polymeric material. The vulcanized elastomeric material is a peroxide cure polymeric material containing repeating units derived from fluorine-containing monomers and at least one peroxide cure site monomer. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles forming a non-continuous phase. The compositions are made by combining a radical curing system, a fluorocarbon elastomer material, and a fluoroplastic material, and heating the mixture at a temperature and for a time sufficient to effect vulcanization of the elastomeric material, while mechanical energy is applied to mix the mixture during the heating step. Shaped articles may be readily formed from the rubber compositions according to conventional thermoplastic processes such as blow molding, injection molding, and extrusion.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: February 16, 2010
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Edward Hosung Park
  • Publication number: 20100036021
    Abstract: The present invention relates to a heat-meltable fluoropolymer composite composition having excellent thermal conductivity, gas and chemical liquid barrier properties and dynamic properties such as storage modulus which comprises a heat-meltable fluoropolymer fine powder and a layered-compound organized by treatment with tetraphenyl phosphonium ions. The present invention also relates to a heat-meltable fluoropolymer composite composition having similar properties to those mentioned above which is obtained by a process (I) in which a heat-meltable fluoropolymer composite composition is obtained by grinding and mixing a heat-meltable fluoropolymer fine powder and a layered-compound and a process (II) in which such heat-meltable fluoropolymer composite composition thus obtained is melted and mixed under shear stress by means of a melt-mixing extruder.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 11, 2010
    Applicants: DU PONT-MITSUI FLUOROCHEMICALS CO., LTD., E.I. DU PONT DE NEMOURS & COMPANY
    Inventors: Jeong Chang LEE, Noriyuki Suzuki, Shousaku Kondo, Hajime Sato
  • Patent number: 7659333
    Abstract: The present invention provides a fluorinated surfactant having the general formula: [Rf—(O)t—CQH—CF2—O]n—R—G??(I) wherein Rf represents a partially or fully fluorinated aliphatic group optionally interrupted with one or more oxygen atoms, Q is CF3 or F, R is an aliphatic or aromatic hydrocarbon group, G represents a carboxylic or sulphonic acid or salt thereof, t is 0 or 1 and n is 1, 2 or 3. The surfactant is particularly useful in polymerizing fluorinated monomers in an aqueous emulsion polymerization.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: February 9, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Michael Jürgens, Harald Kaspar, Herbert Königsmann, Kai Helmut Lochhaas, Andreas R. Maurer, Tilman C. Zipplies, Richard M. Flynn
  • Patent number: 7659351
    Abstract: Fluoroacrylates comprise the reaction product of: (a) at least one fluorochemical alcohol represented by the formula: CnF2n+1—X—OH wherein: n=1 to 4, R=hydrogen or an alkyl group of 1 to 4 carbon atoms, m=2 to 8, Rf=CnF2n+1, y=0 to 6, and q=1 to 8; (b) at least one unbranched symmetric diusocyanate; and (c) at least one hydroxy-terminated alkyl (meth)acrylate or 2-fluoro acrylate monomer having 2 to about 30 carbon atoms in its alkylene portion.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: February 9, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Gregg A. Caldwell, John C. Clark, David J. Kinning, Alan R. Kirk, Thomas P. Klun, Ramesh C. Kumar, Roger A. Mader, George G I. Moore, Zai-Ming Qiu, Richard B. Ross
  • Publication number: 20100029831
    Abstract: A fluorine-containing elastomer composition, which comprises (A) a fluorine-containing elastomer consisting of a copolymer comprising (a) tetrafluoroethylene, (b) perfluoro(alkyl vinyl ether) or perfluoro-(alkoxyalkyl vinyl ether), and (c) a cyano group-containing perfluorovinyl ether, (B) a cross-linking agent, and (C) spherical silica, wherein the spherical silica is high purity amorphous silica particles obtained by calcining metallic silica powders, and cooling the resulting vaporous silicon oxide. The present fluorine-containing elastomer composition can provide seal materials having distinguished processability, product appearance, plasma resistance, etc. by the cyano group-containing perfluoroelastomer having a good heat resistance and only silica as contained therein.
    Type: Application
    Filed: September 25, 2007
    Publication date: February 4, 2010
    Inventors: Mitsuru Meada, Yasunori Yanai
  • Patent number: 7655722
    Abstract: The present invention relates to adhesive compositions having: a phosphate group-containing monomer (a) having a fluorocarbon group represented by Chemical Formula 1; and a solvent (b), where R is a hydrogen atom or a methyl group, n, p and q are natural numbers 2?n?10, p+q?n and p+q+n?13.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: February 2, 2010
    Assignee: Kuraray Medical Inc.
    Inventors: Kazumitsu Nakatsuka, Naoki Nishigaki, Mitsunobu Kawashima
  • Publication number: 20100021694
    Abstract: An antireflective film is provided, the antireflective film including: a transparent support; and at least one low refractive index layer, wherein the low refractive index layer is formed from a composition containing at least following (A) to (C): (A) a fluorine-containing antifouling agent having at least one polymerizable unsaturated group; (B) a fluorine-containing copolymer having at least one polymerizable unsaturated group; and (C) inorganic fine particles.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Inventors: Daiki WAKIZAKA, Miho Asahi, Takato Suzuki
  • Publication number: 20100022702
    Abstract: A fluorinated polymer composition, an article made with the fluorinated polymer composition and a method of making the fluorinated polymer are provided. The method comprises a partially fluorinated polymer which has carboxylic or carboxylate end groups and forming a potassium salt with the end groups of the fluorinated polymer through ion exchange. The resulting partially fluorinated polymers demonstrate high thermal stability without the addition of thermal stabilizers.
    Type: Application
    Filed: December 10, 2007
    Publication date: January 28, 2010
    Inventors: Lisa P. Chen, Harald Kaspar, Tilman C. Zipplies, Barbara Ann Yoder, Jeffrey G. Linert
  • Publication number: 20100009111
    Abstract: A sealant made of expanded polytetrafluoroethylene having a coating of an active hydraulic fluid repellent component and an indicator, the sealant having a first uncompressed state and a second compressed state, wherein the sealant is repellent to hydraulic fluid in both the first uncompressed state and the second compressed state.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 14, 2010
    Inventor: Amadeus Wiesemann
  • Patent number: 7642313
    Abstract: The invention relates to the use of inorganic fluoride compounds as fillers for use in fluoropolymers, such as polyvinylidene fluoride (PVDF) and its copolymers. The filled fluoropolymer is especially useful in articles where limited combustion and low smoke are required—such as in cables and conduits. The invention also relates to a filled PVDF as a means of lowering costs and improving performance properties in any application.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: January 5, 2010
    Assignee: Arkema Inc.
    Inventor: James Joseph Henry
  • Publication number: 20090322669
    Abstract: A display element is described. The display element includes: a network; a continuous phase; and a discontinuous mobile phase, which is capable of responding to an externally applied electric field such that under influence of the externally applied electric field, without effecting bulk movement of the continuous phase, the mobile phase displaces from one location to another location through or within the network. A process of manufacturing a display cell is also described. The process includes: obtaining a pair of electrodes; placing a network between the electrodes; assembling the electrodes and the network to form a sub-assembly; and injecting into the subassembly a discontinuous phase.
    Type: Application
    Filed: April 18, 2008
    Publication date: December 31, 2009
    Inventors: Mateusz Bryning, Zbigniew Bryning, Remy Cromer
  • Patent number: 7638575
    Abstract: Disclosed is a surface treating agent containing fluorine-containing polymer having: (A) a repeating unit derived from a fluorine-containing compound which is represented by the following formula: CH2?C(—X)—C(?O)—Y—[—(CH2)m-Z-]p—(CH2)n-Rf??(I) (wherein X is a hydrogen atom or a methyl group), (B) a repeating unit derived from a monomer containing no fluorine atom, if necessary and (C) a repeating unit derived from a crosslinkable monomer, if necessary. This surface treating agent has excellent water repellency, oil repellency and antifouling property.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: December 29, 2009
    Assignee: Daikin Industries, Ltd.
    Inventors: Ikuo Yamamoto, Yutaka Ohira, Yoshio Funakoshi, Shinichi Minami
  • Publication number: 20090297751
    Abstract: Perfluoropolymer composites are provided which are obtained by dispersing layered-silicates having properties of swelling or cleaving in dispersion media in perfluoropolymers and having the ratio of the viscosity, V0.1, at 0.1 rad/sec by a parallel plate mode of a dynamic rheometer to the viscosity, V1, measured at 1 rad/sec is 1.5 or greater, viscosity being measured at 340° C. A method for making the perfluoropolymer composites is provided, and molded articles therefrom. And additionally, perfluoropolymer composites, where layered-silicates having properties of swelling or cleaving in dispersion media are dispersed in perfluoropolymers, with the storage elasticity of 2 times or higher than that of fluoropolymers, at temperatures greater than the glass transition temperature of perfluoropolymers.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 3, 2009
    Applicant: DUPONT-MITSUI FLUOROCHEMICALS CO LTD
    Inventors: Pham Hoai Nam, Jeong Chang Lee, Kenji Oki, Hajime Sato
  • Patent number: 7625974
    Abstract: A non-dripping, flame retardant, fluoropolymeric composition comprising: (a) a fluoropolymeric base polymer; (b) at least one char forming agent; and (c) a compatibilizer agent. The fluoropolymeric base polymer is preferably selected from the group consisting of PVDF (polyvinylidene fluoride), ECTFE, poly-ethylene chlorotrifluoroethylene, and ETFE poly-ethylene tetrafluoroethylene. Such compositions are especially useful for appliance wire, aerospace/military wire, cable raceways, blown fiber tubes, fire alarm cables, circuit integrity cables, fiber optic distribution cables & breakout components, heat tracing cable jacket, stage lighting cable, industrial cable, shipboard cable (military & passenger), shielded cable jackets.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: December 1, 2009
    Assignee: AlphaGary Corporation
    Inventors: Mark A. Jozokos, Yevgeniy I. Globus
  • Publication number: 20090286922
    Abstract: A (per)fluoroelastomeric composition curable by peroxidic way comprising: 100 phr as (per)fluoroelastomer as filler, 0.5-50 phr of silica having a pH value, determined according to the DIN ISO 787-9 standard, higher than 7, preferably higher than 8, as crosslinking agent, from 0.5 to 10 phr of a bis-olefin having general formula: wherein: R1, R2, R3, R4, R5, R6, equal to or different from each other, are H or C1-C5 alkyls; Z is selected between a C1-C18 linear or branched alkylene or cycloalkylene radical, optionally containing oxygen atoms, preferably at least partially fluorinated, or a (per)fluoropolyoxyalkylene radical.
    Type: Application
    Filed: June 28, 2007
    Publication date: November 19, 2009
    Applicant: Solvay Solexis S.p.A
    Inventors: Milena Stanga, Giovanni Comino, Margherita Albano
  • Patent number: 7619018
    Abstract: A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion containing ferric ions by contacting the fluoropolymer dispersion with strong base anion exchange resin to reduce fluorosurfactant content to a predetermined level, the anion exchange resin being in the hydroxide form, separating the dispersion from the anion exchange resin, and adding an effective amount of chelating agent having an equilibrium constant when complexed with iron of at least 1018 prior to the contacting with the ion exchange resin for complexing ferric ions to prevent scum formation.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: November 17, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: David William Johnson, Robert John Cavanaugh
  • Patent number: 7615592
    Abstract: A water- and oil-repellent agent is produced by subjecting (a) a polyfluoroalkyl group-containing (meth)acrylate and (b) a fluorine atom-free polymerizable monomer to an emulsification treatment in the presence of (c) a polyethylene oxide adduct type, cationic surfactant, or both of the cationic surfactant and a polyethylene oxide adduct type, non-ionic surfactant, and (d) a glycol-based compound, followed by copolymerization reaction in the presence of a polymerization initiator, and admixing the resulting aqueous dispersion with (e) a blocked isocyanate, and gives a satisfactory water and oil repellency to not only synthetic fibers, but also natural fibers, and also has a distinguished washing durability.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: November 10, 2009
    Assignee: Unimatec Co., Ltd
    Inventors: Toshimasa Sagawa, Haruyoshi Tatsu
  • Publication number: 20090275693
    Abstract: A stabilized aqueous fluoropolymer dispersion comprising fluoropolymer particles, wherein the dispersion contains less that about 300 ppm fluorosurfactant based on the weight of the dispersion and a cationic surfactant. The cationic surfactant aids in reducing the viscosity of the dispersion and preferred cationic surfactants are volatile in coating or film casting operations involving drying and sintering of the dispersion.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 5, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Robert John Cavanaugh
  • Patent number: 7612139
    Abstract: A stabilized aqueous fluoropolymer dispersion comprising: about 30 to about 70 weight % non-melt-processible fluoropolymer particles having an SSG of less than about 2.225, said fluoropolymer particles comprising a core of high molecular weight polytetrafluoroethylene and a shell of lower molecular weight polytetrafluoroethylene or modified polytetrafluoroethylene; and about 2 to about 11 weight % of aliphatic alcohol ethoxylate nonionic surfactant based on the weight of said fluoropolymer, wherein said dispersion is essentially free of surfactants containing aromatic groups and contains less than 300 ppm of fluorosurfactant based on the weight of said dispersion.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: November 3, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Clay Woodward Jones, David William Johnson
  • Patent number: 7604818
    Abstract: A polymer of fluorinated monomers and hydrocarbon monomers is provided. It is also provided a polymer blend that contains a polymer formed of fluorinated monomers and hydrocarbon monomers and another biocompatible polymer. The polymer or polymer blend described herein and optionally a bioactive agent can form an implantable device such as a stent or a coating on an implantable device such as a drug-delivery stent, which can be used for treating or preventing a disorder such as atherosclerosis, thrombosis, restenosis, hemorrhage, vascular dissection or perforation, vascular aneurysm, vulnerable plaque, chronic total occlusion, claudication, anastomotic proliferation for vein and artificial grafts, bile duct obstruction, ureter obstruction, tumor obstruction, or combinations thereof.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: October 20, 2009
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: Stephen D. Pacetti
  • Patent number: 7604861
    Abstract: The present invention provides a fluororesin composition, which is excellent in moldability and crack resistance, a process for preparing the composition and a cable evenly coated with the composition. Specifically, the present invention provides a fluororesin composition wherein polytetrafluoroethylene is compounded to a terpolymer comprising tetrafluoroethylene, hexafluoropropylene and perfluoroalkyl vinylether. Also, the present invention provides a process for preparing the composition which comprises kneading with a multi-screw kneader. Furthermore, the present invention provides a cable which is coated with the resin.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: October 20, 2009
    Assignee: Daikin Industries, Ltd.
    Inventors: Masayuki Namimatsu, Yoshiyuki Hiraga, Yoshiyuki Takase, Tadahiro Yabu