Fluorine Containing Monomer Is An Ether Patents (Class 526/247)
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Publication number: 20090292093Abstract: The present invention is to provide a novel fluorinated compound which can produce a fluorinated polymer which has high transparency, good heat resistance and adequate flexibility, and a fluorinated polymer containing repeating units based on the fluorinated compound. The present invention relates to a fluorinated compound represented by the formula (1): wherein QF is —CF2—, —CF2CF2—, —CF2CF2CF2—, —CF(CF3)CF2—, —CF2CF(CF3)— or —CF2CF2CF2CF2—, RF is —CF3, —CF2CF3, —CF2CF2CF3, —CF(CF3)2, —CF2CF2CF2CF3, —CF2CF(CF3)2, —CF(CF3)CF2CF3, —(CF2)4CF3 or —(CF2)5CF3, and n is an integer of from 1 to 4, and a fluorinated polymer containing repeating units based on the fluorinated compound.Type: ApplicationFiled: June 22, 2009Publication date: November 26, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Keigo MATSUURA, Norihide SUGIYAMA
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Publication number: 20090281262Abstract: In one embodiment, a copolymer comprises a sulfonatable segment covalently linked to an un-sulfonatable segment through an organic linking group. The sulfonatable group segment may be sulfonated through direction sulfonation or sulfonation through a spacer molecule. In another embodiment, a copolymer comprises a sulfonated segment and an unsulfonated segment. A membrane electrode assembly and a fuel cell may be produced using the copolymer.Type: ApplicationFiled: August 25, 2008Publication date: November 12, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Sean M. MacKinnon, Timothy J. Fuller
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Patent number: 7615307Abstract: An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the invention is an ionomer having (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) acceptably low hydration (less than about 120 weight percent). These ionomers are capable of being processed into thin film and are extremely well-suited for low humidity or high temperature fuel cell applications.Type: GrantFiled: June 21, 2006Date of Patent: November 10, 2009Assignee: Gore Enterprise Holdings, Inc.Inventors: Huey Shen Wu, Charles W. Martin, Xin Kang Chen
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Patent number: 7615600Abstract: Fluoropolymers comprising at least one repeat unit of formula (I): wherein: groups X and Y, identical or different, represent H or F; group Z represents F or a perfluorinated alkyl group; group W represents CH2O or CF2O or CO2; group Ar represents a divalent group including at least one optionally substituted carbon-containing aromatic cycle; group Q represents a single bond, (CF2)n with 1?n?10, or C2F4OC2F4; group G represents a cation exchanging group, preferably selected among: SO2R1, with R1 representing OH, F or Cl; or P(?O) (OR2)2 with R2 representing H or an optionally substituted alkyl group; or CO2H and having ion exchange capacity not less than 0.5 meq/g polymer are provided. Methods of synthesis, membranes obtained using these polymers and fuel cell systems containing such membranes are also provided.Type: GrantFiled: October 14, 2005Date of Patent: November 10, 2009Assignee: Commissariat a l'Energie AtomiqueInventors: Philippe Capron, Bruno Ameduri, Bernard Boutevin, Renaud Souzy
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Patent number: 7612154Abstract: Fluoroelastomers, curable by peroxidic route, obtainable by polymerizing the following monomers: a) C2-C8 hydrogenated fluoroolefins; b) fluorovinylethers of general formula: CFX?CXOCF2OR ??(I) c) bis-olefins having general formula: RI1RI2 C?CRI3-Z-CRI4?CRI5RI6??(IA) and optionally: d) one or more fluorinated olefinic comonomers selected from perfluoroalkylvinylethers (PAVE) CF2?CFOR2f, perfluorooxyalkylvinylethers CF2?CFOXa, e) C2-C8 perfluorolefins; f) one or more C2-C8 non fluorinated olefinic comonomers said fluoroelastomers comprising iodine and/or bromine atoms in the chain and/or in end position.Type: GrantFiled: July 19, 2006Date of Patent: November 3, 2009Assignee: Solvay Solexis S.p.A.Inventors: Stefano Arrigoni, Margherita Albano
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Publication number: 20090270573Abstract: In a process for the manufacture of perfluoroelastomers, a weak organic acid, e.g. glacial acetic acid, is employed to coagulate an acidic perfluoroelastomer dispersion.Type: ApplicationFiled: April 29, 2008Publication date: October 29, 2009Inventor: Christopher John BISH
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Publication number: 20090258958Abstract: A true tetrafluoroethylene (TFE) copolymer of the fine powder type is provided, wherein the copolymer contains polymerized comonomer units of at least one comonomer other than TFE in concentrations of at least or exceeding 1.0 weight percent, and which can exceed 5.0 weight percent, wherein the copolymer is expandable, that is, the copolymer may be expanded to produce strong, useful, expanded TFE copolymeric articles having a microstructure of nodes interconnected by fibrils. Articles made from the expandable copolymer may include tapes, membranes, films, fibers, and are suitable in a variety of end applications, including medical devices.Type: ApplicationFiled: March 20, 2009Publication date: October 15, 2009Inventor: Lawrence A. Ford
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Publication number: 20090247691Abstract: A fluorine-containing copolymer, which comprises a hydroxyl-terminated fluorine-containing vinyl ether, represented by the following general formula: CF2?CFORfCH2OH (where Rf is a fluoroalkylene group, a fluoroalkyl ether group, or a fluoroalkoxyfluoroalkyl ether group, having 1-25 carbon atoms), and at least one of other fluorine-containing unsaturated monomers, where a high-molecular weight fluorine-containing copolymer having a melt viscosity (230° C.) of 0.1-100 g/10 min. is insoluble in a solvent, and can be used suitably for melt molding, whereas a low-molecular weight fluorine-containing copolymer having a glass transition temperature Tg of 20° C., or higher, and a number average molecular weight Mn of 1,000, or more is soluble in a solvent, and can be used suitably for coating agents, etc.Type: ApplicationFiled: December 10, 2008Publication date: October 1, 2009Applicant: UNIMATEC CO., LTD.Inventors: Jun Kanega, Ji-Shan Jin, Katsumi Suzuki, Takashi Enokida, Keisuke Kokin
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Patent number: 7592405Abstract: A fluorine-containing photocurable composition containing a (meth)acrylate having a fluorinated alkyl group (A) and a photopolymerization initiator (B). The (meth)acrylate (A) includes a group represented by general formula (1) and two or more (meth)acryloyl groups, and a fluorine atom content in one molecule of the acrylate is 25% by weight or more, and molecular weight of the (meth)acrylate is 500 to 4000 (in the general formula (1), R represents a hydrogen atom or alkyl group having 1 to 4 carbon atoms; X represents an alkylene chain, which may have a hetero atom, or a connecting group represented by the following general formula (2); and Rf represents a fluorinated alkyl group) (in the formula (2), Y represents an oxygen atom or a sulfur atom, m and n are an integer of 1 to 4 which may be the same as or different from each other; and Rf1 is a fluorinated alkyl group).Type: GrantFiled: November 18, 2004Date of Patent: September 22, 2009Assignee: DIC CorporationInventors: Tsuneyuki Otaguro, Hiroshi Kinoshita, Kiyofumi Takano, Hirofumi Yamaguchi
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Publication number: 20090234086Abstract: The present invention provides a method of producing a fluoroelastomer excellent in dispersion stability at low cost, at a high rate of polymerization and in high yields. The present invention is a method of producing a fluoroelastomer comprising an emulsion polymerization of a fluorinated monomer in the presence of a water-soluble radical polymerization initiator, wherein the emulsion polymerization is carried out in the presence of a compound (1) containing a functional group reactive in radical polymerization and a hydrophilic group and a fluorinated compound (2) containing a fluorocarbon group comprising 1 to 6 continuously united carbon atom with fluorine atom directly bound to each of them as well as a hydrophilic group.Type: ApplicationFiled: June 29, 2007Publication date: September 17, 2009Applicant: DAIKIN INDUSTRIES, LTDInventors: Mitsuru Kishine, Masanori Kitaichi, Yousuke Nishimura, Manabu Fujisawa, Yoshiki Tanaka, Shintarou Ogata, Yutaka Ueta, Shigeru Morita
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Patent number: 7585926Abstract: There is provided a material which is free from fading into white due to surface scattering and is useful as a laminated article having excellent adhesion and practical low reflection.Type: GrantFiled: August 25, 2005Date of Patent: September 8, 2009Assignee: Daikin Industries, Ltd.Inventors: Kazuyuki Sato, Tsuyoshi Itagaki, Yasuo Itami
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Patent number: 7582704Abstract: Biomedical devices formed from a polymerization product of a monomeric mixture comprising one or more monomers comprising at least two trifluorovinyl groups are provided. Also provided are biomedical devices formed from a network of a polymer comprising one or more perfluorocyclobutane rings in the polymer backbone wherein the network is formed by crosslinks in the polymer.Type: GrantFiled: July 1, 2005Date of Patent: September 1, 2009Assignee: Bausch & Lomb IncorporatedInventors: Derek Schorzman, Joseph C. Salamone
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Patent number: 7582714Abstract: A fluorinated polymer comprising a unit represented by the following formula (1), a method for producing fluorinated compounds and the fluorinated polymers, and an optical/electrical material or coating material comprising the fluorinated polymer.Type: GrantFiled: November 25, 2004Date of Patent: September 1, 2009Assignee: Japan Science and Technology AgencyInventors: Yoshiyuki Okamoto, Yasuhiro Koike, Wei-Hong Liu, Yinzhong Guo
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Patent number: 7579418Abstract: The present invention relates to the process of extruding melt drawing fluoropolymer onto conductor to form insulated conductor at a line speed of at least 533 m/min and having no more than 10 sparks and no more than 2 lumps/13.7 km of insulated conductor under conditions that comprise an adequate process window to allow for these results to be obtained at different conditions within the process window. The invention identifies the critical parameters for achieving this process window, namely melt flow rate of the fluoropolymer, preferably being 30±3 g/10 min, and the melt temperature of the extruding/melt-drawing step, preferably being 393° C.±6° C.Type: GrantFiled: April 27, 2004Date of Patent: August 25, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Patrick Anthony DeFeo, Glenn W. Heffner, Niall D. McKee, Sundar Kilnagar Venkataraman
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Patent number: 7579102Abstract: An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the invention is an ionomer having (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) acceptably low hydration (less than about 120 weight percent). These ionomers are capable of being processed into thin film and are extremely well-suited for low humidity or high temperature fuel cell applications.Type: GrantFiled: June 21, 2006Date of Patent: August 25, 2009Assignee: Gore Enterprise Holdings, Inc.Inventors: Huey Shen Wu, Charles W. Martin, Xin Kang Chen
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Patent number: 7575847Abstract: Antireflective films and low refractive index compositions are described. The low refractive index layer comprises the reaction product of a composition comprising at least one free-radically polymerizable material having a high fluorine content, and at least one free-radically polymerizable fluoropolyether urethane material.Type: GrantFiled: June 29, 2006Date of Patent: August 18, 2009Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Thomas P. Klun, Chuntao Cao, William D. Coggio, Zai-Ming Qiu
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Patent number: 7576164Abstract: Compositions of fluoroelastomers containing copolymerized units of tetrafluoroethylene, propylene, a first cure site selected from the group consisting of i) trifluoroethylene, ii) 3,3,3-trifluoropropene-1, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene, and a second cure site selected from the group consisting of i) copolymerized units of a brominated cure site monomer, ii) copolymerized units of an iodinated cure site monomer, iii) copolymerized units of a chlorinated cure site monomer, iv) brominated endgroups, v) iodinated endgroups and vi) a combination of any of i)-v) are readily curable with polyhydroxy curing systems. The resulting cured articles have a combination of excellent resistance to alkaline fluids, superior tensile properties and compression set resistance, and excellent adhesion to metal substrates. Optionally, the fluoroelastomers may be dual cured by both a polyhydroxy system and an organic peroxide system.Type: GrantFiled: February 27, 2007Date of Patent: August 18, 2009Assignee: Du Pont Performance Elastomers LLC.Inventors: John G. Bauerle, Christopher J. Bish, Theresa M. Dobel, Phan L. Tang
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Publication number: 20090203865Abstract: Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2?C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2?C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.Type: ApplicationFiled: April 22, 2009Publication date: August 13, 2009Applicant: E . I . DU PONT DE NEMOURS AND COMPANYInventors: RICHARD E. FERNANDEZ, WEIMING QIU, PAUL R. RESNICK, ROBERT CLAYTON WHELAND
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Publication number: 20090196798Abstract: A barrier with excellent sealability, resealability, and low extractables, used as a septum.Type: ApplicationFiled: February 6, 2008Publication date: August 6, 2009Inventors: Robert Sassa, Kevin Dove, Sonia Cooper
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Publication number: 20090197028Abstract: Copolymer comprising at least 50 mol percent up to 85 mol percent tetrafluoroethylene (TFE), from 10-35 mol percent 3,3,3-trifluoropropylene (TFP), and from 0.5-15 mol percent of a fluorinated ethylenically unsaturated monomer of the formula RCF?CR2 wherein R, which can be the same or different, is selected from the group consisting of H, F, Cl, Br, I, alkyl of from 1 to 8 carbon atoms, perfluoroalkyl of from 1 to 8 carbon atoms, and perfluoroalkylether of from 1 to 8 carbon atoms are useful as process aids and for fuel barrier applications in flexible hose constructions.Type: ApplicationFiled: January 31, 2008Publication date: August 6, 2009Inventors: Donald F. Lyons, Steven R. Oriani, Ronald D. Stevens
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Publication number: 20090192259Abstract: 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: ApplicationFiled: February 20, 2007Publication date: July 30, 2009Applicant: Solvay Solexis S.p.AInventors: Pasqua Colaianna, Giulio Brinati, Aldo Sanguineti
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Publication number: 20090192263Abstract: The present invention provides prepolymers based on poly(alkyl ethers) having terminal trifluorovinyl aromatic containing groups and polymers produced from such prepolymers. The prepolymers and polymers are useful as biomedical devices such as contact lenses or intraocular lenses.Type: ApplicationFiled: April 9, 2009Publication date: July 30, 2009Inventors: Derek Schorzman, Joseph C. Salamone
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Publication number: 20090186986Abstract: The present invention provides a fluorinated polymer excellent in the crosslinking reactivity, crosslinked rubber physical properties and chemical resistance, and its crosslinked rubber. A fluorinated polymer comprising repeating units (a) based on at least one monomer selected from the group consisting of ethylenic unsaturated compounds each having a hydroxyphenyl group, repeating units (b) based on at least one fluoromonomer selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride, 3,3,3-trifluoropropene, 1,3,3,3-tetrafluoropropene, 1,1,2-trifluoroethylene, vinyl fluoride, 1,2-difluoroethylene and CF2?CF—O—Rf (wherein Rf is a C1-8 saturated perfluoroalkyl group or a perfluoro(alkoxyalkyl) group) and, if necessary, repeating units (c) based on at least one hydrocarbon monomer selected from the group consisting of ethylene, propylene and CH2?CH—O—R1.Type: ApplicationFiled: March 19, 2009Publication date: July 23, 2009Applicant: Asahi Glass Company, LimitedInventors: Jumpei NOMURA, Toshikazu YONEDA, Mitsuru SEKI, Hiroki KAMIYA, Hiroshi FUNAKI, Takehiro KOSE
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Patent number: 7563558Abstract: The present invention provides polymers that are useful in negative resist compositions. Polymers of the present invention comprise (1) a first monomer having a polar functional group; (2) a second monomer; and optionally, (3) a third monomer that imparts at least one characteristic selected from crosslinkable functionality, etch resistance, and solubility modulation. The first monomer provides an acid catalyzed polarity switch upon elimination of the polar functional group, whereas, the second monomer provides aqueous dissolution. The polymers of the present invention may be incorporated into negative resist compositions, which may also include photoacid generators, crosslinking agents, basic compounds, solvents, dissolution accelerators, photobase generators, latent basic compounds, surfactants, adhesion promoters, and anti-foaming agents.Type: GrantFiled: October 25, 2007Date of Patent: July 21, 2009Assignee: International Business Machines CorporationInventors: Robert David Allen, Gregory Breyta, Phillip Joe Brock, Richard A. DiPietro, David R. Medeiros, Ratnam Sooriyakumaran
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Patent number: 7563852Abstract: Provided is a method of manufacturing a perhalogenated elastomer comprising using an onium compound to coagulate a latex comprising polymer particles, the polymer particles consisting essentially of interpolymerized units of one or more perhalogenated comonomer(s) and at least one cure site monomer, wherein the coagulation is performed essentially free of metal ions and metal salts. Also provided is an elastomeric composition comprising a curable perhalogenated elastomer comprising interpolymerized units derived from a nitrogen-containing cure site monomer and coagulated with an onium compound, wherein the elastomer is capable of curing without adding further components and wherein the composition is essentially free of metal ions and metal salts. Also provided are fluoropolymer articles and methods of making fluoropolymer compositions and articles.Type: GrantFiled: September 8, 2008Date of Patent: July 21, 2009Assignee: 3M Innovative Properties CompanyInventors: Guy Van Gool, Alain Verschuere, Werner M. A. Grootaert
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Patent number: 7560517Abstract: The present invention relates to a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated olefins and having one or more cure sites comprising (a) a halogen capable of participating in a peroxide cure reaction or (b) a nitrile group, said fluoropolymer further comprising repeating units derived from one or more fluorinated allyl ethers of the formula: CF2?CF—CF(Z)—O—Rf??(I) wherein Z represents F or CF3 and Rf represents a fluorinated alkyl group that may contain one or more catenary oxygen atoms. The fluoropolymer can be cured to a fluoroelastomer. The invention also relates to a curable fluoroelastomer composition comprising the fluoropolymer and a curing agent.Type: GrantFiled: November 16, 2005Date of Patent: July 14, 2009Assignee: 3M Innovative Properties CompanyInventors: Klaus Hintzer, Michael Jurgens, Harald Kaspar, Kai Helmut Lochhaas, Werner Schwertfeger
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Patent number: 7550555Abstract: Ultrahigh molecular weight polyethylene compositions of highly beneficial sintering characteristics are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described.Type: GrantFiled: January 24, 2003Date of Patent: June 23, 2009Assignee: Smith & Nephew Orthopaedics AGInventors: Paul Smith, Jeroen Visjager, Theo Tervoort
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Publication number: 20090149616Abstract: The present invention provides a fluorinated surfactant comprising fluorinated units and hydrophilic non-fluorinated units wherein said fluorinated surfactant can be obtained by (i) a free radical polymerization of: (a) one or more fluorinated monomers having the general formula (I): (Rf)n—X—C(R1)?CH2??(I) wherein Rf represents a perfluorinated polyether group, X represents a bond or a linking group, R1 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and n is 1 or 2; and (b) at least one non-fluorinated monomer having at least one hydrophilic group or a precursor thereof; and (ii) conversion of said precursor when present, into a corresponding hydrophilic group.Type: ApplicationFiled: November 22, 2006Publication date: June 11, 2009Inventors: Frans A. Audenaert, Rudolf J. Dams
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Patent number: 7544752Abstract: TFE-based thermoprocessable copolymers having the following composition, expressed in percentage by moles on the total of the monomers: A) from 0.01 to 15% of the monomer of formula: CF2?CFOCF2OCF3??(a); A1) tetrafluoroethylene from 99.99 to 85%; optionally B) one or more (per)fluorinated comonomers having at least one unsaturation of ethylene type, different from TFE; the sum of the molar percentages A)+B) being such as to give polymers showing at least one melting peak at the thermogravimetric analysis (DSC).Type: GrantFiled: July 28, 2005Date of Patent: June 9, 2009Assignee: Solvay Solexis S.p.A.Inventors: Francesco Triulzi, Marco Apostolo, Vito Tortelli, Marco Galimberti
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Patent number: 7544753Abstract: A process for producing an elastic fluorocopolymer, by emulsion-polymerizing at least one fluoromonomer (a), a vinyl ester monomer (b) represented by the formula CR1R2?CR3COOCH?CH2 optionally, at least one hydrocarbon monomer (c) selected from the group consisting of ethylene, propylene and a vinyl ether, in an aqueous medium to produce an elastic fluorocopolymer latex, adjusting the pH of the elastic fluorocopolymer latex to from 1 to 9, and coagulating the elastic fluorocopolymer latex to isolate an elastic fluorocopolymer.Type: GrantFiled: January 3, 2007Date of Patent: June 9, 2009Assignee: Asahi Glass Company, LimitedInventors: Junpei Nomura, Hiroshi Funaki, Hiroki Kamiya
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Patent number: 7538170Abstract: The present invention has for its object to provide a fluorocopolymer which is available at low cost, has fluidity at room temperature, and is curable, a method of producing the same copolymer and a curable composition having good processability and in situ moldability. The present invention is directed to a fluorocopolymer which is fluid at room temperature and curable, and which is obtainable from a trifluorovinyl group-containing monomer with an ethylenically unsaturated double bond moiety being a trifluorovinyl group.Type: GrantFiled: March 14, 2003Date of Patent: May 26, 2009Assignee: Daikin Industries, Ltd.Inventors: Tatsuya Morikawa, Kazuhiro Yamamura, Manabu Fujisawa, Etsuo Minamino, Mitsuru Kishine
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Patent number: 7538171Abstract: A fluorine-containing copolymer, which comprises a hydroxyl-terminated fluorine-containing vinyl ether, represented by the following general formula: CF2?CFORfCH2OH (where Rf is a fluoroalkylene group, a fluoroalkyl ether group, or a fluoroalkoxyfluoroalkyl ether group, having 1-25 carbon atoms), and at least one of other fluorine-containing unsaturated monomers, where a high-molecular weight fluorine-containing copolymer having a melt viscosity (230° C.) of 0.1-100 g/10 min. is insoluble in a solvent, and can be used suitably for melt molding, whereas a low-molecular weight fluorine-containing copolymer having a glass transition temperature Tg of 20° C., or higher, and a number average molecular weight Mn of 1,000, or more is soluble in a solvent, and can be used suitably for coating agents, etc.Type: GrantFiled: November 18, 2005Date of Patent: May 26, 2009Assignee: Unimatec Co., Ltd.Inventors: Jun Kanega, Ji-Shan Jin, Katsumi Suzuki, Takashi Enokida, Keisuke Kokin
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Patent number: 7534836Abstract: Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising one or more monomers comprising one or more trifluorovinyl groups, e.g., a perfluorocyclobutane containing polymer.Type: GrantFiled: July 1, 2005Date of Patent: May 19, 2009Assignee: Bausch & Lomb IncorporatedInventors: Derek Schorzman, Joseph C. Salamone
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Patent number: 7534845Abstract: Fluorovinyl ethers having the formula CFX?CXOCF2OR, wherein R is a C2-C6 linear, branched or C5-C6 cyclic (per) fluoroalkyl group, or a C2-C6 linear, branched (per)fluoro oxyalkyl group containing from one to three oxygen atoms; when R is fluoroalkyl or fluorooxyalkyl group as above defined, it can contain from 1 to 2 atoms, equal or different, selected from the following: H, Cl, Br, I; X?F, H; and homopolymers or polymers obtainable polymerizing said Fluorovinyl ethers with at least another polymerizable monomer.Type: GrantFiled: December 18, 2006Date of Patent: May 19, 2009Assignee: Solvay Solexis S.p.A.Inventor: Walter Navarrini
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Publication number: 20090124774Abstract: Disclosed herein are novel fluoroolefins of formula Rf-O—(CF2CF2)n(CH2CF2)m—CH?CH2, wherein n is 1 or 2, m is 0 or 1 and Rf is a C1-C8 fluoroalkyl or fluoroalkoxy group. The fluoroolefins may be oxidized to manufacture fluorinated carboxylic acids. Also disclosed are fluoropolymers comprising copolymerized units of the fluoroolefins of the invention and at least one other fluoromonomer.Type: ApplicationFiled: October 14, 2008Publication date: May 14, 2009Inventors: Ming-Hong Hung, Sheng Peng
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Publication number: 20090124754Abstract: An emulsion polymerization process for the production of fluoropolymers is disclosed wherein a combination of at least two fluorosurfactants is employed as dispersants. At least one fluorosurfactant is a perfluoroalkyl or perfluoroalkoxy sulfinate. At least one other fluorosurfactant is a perfluoropolyether having at least one endgroup selected from the group consisting of carboxylic acid, a slat thereof, sulfonic acid and a salt thereof.Type: ApplicationFiled: October 21, 2008Publication date: May 14, 2009Inventors: Michael Cregg Coughlin, Ming-Hong Hung, Phan Linh Tang
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Patent number: 7531610Abstract: A compound containing two fluorosulfonyl groups which are groups convertible to sulfonic acid groups, an intermediate therefor, and methods for their production with high productivity, are provided. Also provided are a fluorosulfonyl group-containing polymer obtained by polymerizing such a compound, and a sulfonic acid group-containing polymer obtained from such a polymer.Type: GrantFiled: January 28, 2008Date of Patent: May 12, 2009Assignee: Asahi Glass Company, LimitedInventors: Isamu Kaneko, Atsushi Watakabe, Jyunichi Tayanagi, Susumu Saito
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Patent number: 7531611Abstract: A polymerization process for producing a tetrafluoroethylene copolymer, and the copolymer produced thereby, are provided. The copolymer is of the dispersion/fine powder type and contains polymerized tetrafluoroethylene monomer units and co-polymerized higher homologous comonomer units having the formula (CnF(2n+1))CH?CH2, wherein 6?n<10, in which the primary particles are believed to have a core and shell structure and the polymerized comonomer units are present in an amount from 0.01 mol % to 0.3 mol %, based upon total copolymer composition. The copolymer has a raw dispersion primary particle size (RDPS) of less than 0.210 microns coupled with a standard specific gravity (SSG) of less than 2.143. Preferably the copolymer has comonomer units present in an amount from 0.05 mol % and 0.25 mol % and the RDPS is within the range between 0.178 microns and 0.200 microns, coupled with a SSG of less than 2.140.Type: GrantFiled: July 5, 2005Date of Patent: May 12, 2009Assignee: Gore Enterprise Holdings, Inc.Inventors: Edward A. Sabol, Richard L. Baillie
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Publication number: 20090111960Abstract: Fluoropolymers having a —CF adjacent to a —CH which are subsequently dehydrofluorinated to create a —C?C— can be used as controlled release carriers for therapeutic agent(s) by covalently conjugating the therapeutic agent(s) to the fluoropolymer at the —C?C—.Type: ApplicationFiled: October 25, 2007Publication date: April 30, 2009Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventor: Edward Parsonage
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Publication number: 20090105435Abstract: Oligomers of perfluoro(methyl vinyl ether) with vinylidene fluoride or tetrafluoroethylene are disclosed that contain 40-90 mole percent copolymerized units of vinylidene fluoride or tetrafluoroethylene and 10-60 mole percent copolymerized units of perfluoro(methyl vinyl ether), said oligomers having two functional endgroups and having a number average molecular weight between 1000 and 25,000.Type: ApplicationFiled: September 12, 2008Publication date: April 23, 2009Inventors: Ming-Hong Hung, Bruno Ameduri, Cyrille Andre Boyer
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Patent number: 7521513Abstract: A novel semi-batch emulsion polymerization process for the production of fluoroelastomers is disclosed wherein a hydrocarbon anionic surfactant is employed as the dispersing agent. The surfactant has the formula R-L-M wherein R is an alkyl group having between 6 and 17 carbon atoms, L is selected from the group consisting of ArSO3?, SO3?, SO4?, PO3? and COO? and M is a univalent cation. Preferred surfactants are sulfonates of the formula CH3—(CH2)n—SO3M, CH3—(CH2)n—C6H4—SO3M, or CH3—(CH2)n—CH?CHCH2—SO3M, where n is an integer from 6 to 17, or mixtures thereof, and M is a cation having a valence of 1. Surfactant is not introduced to the reactor until shortly after the polymerization reaction has begun.Type: GrantFiled: October 23, 2007Date of Patent: April 21, 2009Assignee: DuPont Performance Elastomers LLCInventor: Phan Linh Tang
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Publication number: 20090093602Abstract: A process for the polymerization of a true tetrafluoroethylene (TFE) copolymer of the fine powder type is provided, wherein the copolymer contains polymerized comonomer units of at least one comonomer other than TFE in concentrations of at least or exceeding 1.0 weight percent, and which can exceed 5.0 weight percent, wherein the copolymer is expandable, that is, the copolymer may be expanded to produce strong, useful, expanded TFE copolymeric articles having a microstructure of nodes interconnected by fibrils.Type: ApplicationFiled: October 4, 2007Publication date: April 9, 2009Inventor: Lawrence A. Ford
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Patent number: 7514512Abstract: VDF-based curable fluoroelastomers having glass transition temperature lower than ?35° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.Type: GrantFiled: July 28, 2005Date of Patent: April 7, 2009Assignee: Solvay Solexis S.p.A.Inventors: Marco Apostolo, Francesco Triulzi, Vito Tortelli, Marco Galimberti
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Publication number: 20090088533Abstract: Monomers corresponding to the formula Z2C?CWX(CY2)nCN, in which X represents an atom of oxygen or another atom, Z and Y represent an atom of hydrogen or fluorine, W represents an atom of hydrogen or fluorine or a CF3 group and n is a natural integer between 0 and 10 inclusively. Because of the novel methods of copolymerization and crosslinking, these monomers make it possible to produce fluorosulphonated nitrile elastomers having very low glass transition temperatures (Tg).Type: ApplicationFiled: October 20, 2008Publication date: April 2, 2009Applicant: HYDRO-QUEBECInventors: Bruno Michel Ameduri, Abdellatif Manseri, Mario Boucher
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Publication number: 20090061353Abstract: Disclosed is a fluorine-containing polymer compound containing first and second repeating units respectively represented by formulas (a-1) and (a-2), wherein R3 represents a fluorine atom or fluorine-containing alkyl group, each of W and W1 independently represents a bivalent linking group, R2 represents an acid-labile protecting group, each of R4, R5 and R6 independently represents a hydrogen atom, fluorine atom or monovalent organic group, and at least two of R4, R5, R6 and W or W1 may be combined to form a cyclic structure in formula (a-1) or (a-2). This polymer compound has a weight-average molecular weight of 1,000 to 1,000,000 and can provide a resist composition capable of forming a pattern with no swelling and no pattern falling down.Type: ApplicationFiled: August 28, 2008Publication date: March 5, 2009Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Yoshimi ISONO, Jonathan Joachim JODRY, Satoru NARIZUKA, Kazuhiro YAMANAKA
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Publication number: 20090038821Abstract: The present invention provides a covered electric wire having a covering excellent in electrical characteristics and thermal stability as well as in crack resistance. The present invention is related to a covered electric wire comprising a core wire covered with a tetrafluoroethylene [TFE]-based copolymer comprising TFE-derived TFE units and perfluoro (alkyl vinyl ether) [PAVE]-derived PAVE units, a content of said PAVE unit being in excess of 5% by mass and not higher than 20% by mass relative to all monomer units, containing less than 10 unstable terminal groups per 1×106 carbon atoms, and having a melting point of not lower than 260° C.Type: ApplicationFiled: August 6, 2008Publication date: February 12, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Megumi SATO, Takahiro KITAHARA
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Patent number: 7488787Abstract: Perfluoroelastomers curable by peroxidic way having glass transition temperature lower than ?10° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the IR spectroscopy in Fourier transform described in the present application.Type: GrantFiled: July 28, 2005Date of Patent: February 10, 2009Assignee: Solvay Solexis S.p.A.Inventors: Marco Apostolo, Francesco Triulzi, Vito Tortelli, Marco Galimberti
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Patent number: 7488788Abstract: To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.Type: GrantFiled: November 14, 2005Date of Patent: February 10, 2009Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Atsushi Watakabe, Tetsuji Shimohira, Hisao Kawazoe, Ichiro Terada
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Publication number: 20090035699Abstract: Fluorinated monomers of formula (1) are useful in producing polymers for the formulation of radiation-sensitive resist compositions. R1 is H or monovalent C1-C20 hydrocarbon group, R2 is H, F, methyl or trifluoromethyl, R3 and R4 are H or a monovalent C1-C8 hydrocarbon group, or R3 and R4 may form an aliphatic hydrocarbon ring, and A is a divalent C1-C6 hydrocarbon group.Type: ApplicationFiled: June 25, 2008Publication date: February 5, 2009Inventors: Koji HASEGAWA, Takeshi KINSHO, Katsuhiro KOBAYASHI, Tsunehiro NISHI, Takeru WATANABE
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Patent number: RE40902Abstract: A tetrafluoroethylene/hexafluoropropylene copolymer with high drawability is provided. Also provided is a process employing the polymer and an article coated with the polymer.Type: GrantFiled: October 31, 2007Date of Patent: September 1, 2009Assignee: 3M Innovative Properties CompanyInventors: Ralph Kaulbach, Albert Killich, Friedrich Kloos, Gernot Loehr, Ludwig Mayer, Erik Peters, Thomas J. Blong, Denis Duchesne