Fluorine-containing Monomer Contains F And C Only Or Only F, C, And H Patents (Class 524/545)
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Publication number: 20130289199Abstract: 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: ApplicationFiled: April 11, 2013Publication date: October 31, 2013Applicant: Belenos Clean Power Holding AGInventors: Fabiane OLIVEIRA, Yves Leterrier, Yan-Anders Manson
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Publication number: 20130273424Abstract: Provided are vinylidene fluoride copolymers exhibiting higher adhesion with respect to metal foils than do conventional vinylidene fluoride copolymers, and to provide uses of the vinylidene fluoride copolymers. The vinylidene fluoride copolymers are obtained by copolymerizing vinylidene fluoride with a compound represented by Formula (A). In Formula (A), R1, R2 and R3 are each independently a hydrogen atom, a chlorine atom or an alkyl group; and X is an atomic group with a molecular weight of not more than 500 containing a heteroatom and having a main chain composed of 1 to 20 atoms, or is a heteroatom.Type: ApplicationFiled: December 22, 2011Publication date: October 17, 2013Applicant: Kureha CorporationInventors: Keisuke Watanabe, Yuuki Sakai, Emi Sugawara, Shintarou Mutou, Tamito Igarashi
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Publication number: 20130264522Abstract: The present invention pertains to a fluoropolymer [polymer (F)] comprising: recurring units derived from vinylidene fluoride (VDF), and from 0.01% to 5% by moles of recurring units derived from at least one (meth)acrylic monomer [monomer (MA)] having formula (I) here below: wherein: R1, R2 and R3, equal to or different from each other, are independently selected from a hydrogen atom and a C1-C3 hydrocarbon group, and ROH represents a hydrogen atom or a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group, said polymer (F) comprising end groups having formula —CF2H and/or —CF2CH3 in an amount of at least 30 mmoles per Kg of vinylidene fluoride (VDF) recurring units. The invention also pertains to a process for the manufacture of said polymer (F) and to use of said polymer (F) as binders for the manufacture of electrodes or for the manufacture of membranes.Type: ApplicationFiled: December 13, 2011Publication date: October 10, 2013Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Milena Stanga, Bradley Lane Kent, Alessio Marrani, Giulio Brinati
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Publication number: 20130230940Abstract: An etch-resistant composition is provided. The etch-resistant composition comprises a polymer and a first organic solvent. The polymer is prepared by copolymerizing a polymerization unit comprising styrene-based monomer(s) and acrylate-based monomer(s), and has a weight average molecular weight of at least about 35,000. Based on the total weight of the etch-resistant composition, the amount of the polymer is about 20.0 to about 60.0 wt % and the amount of the solvent is about 40.0 to about 80.0 wt %. The etch-resistant composition can be used for preparing a selective emitter of a solar cell.Type: ApplicationFiled: August 8, 2012Publication date: September 5, 2013Applicant: ETERNAL CHEMICAL CO., LTD.Inventors: Pei-Rong SHIEH, Tsai-Fa HSU, Po-Cho HSIAO
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Publication number: 20130216599Abstract: Antimicrobial parylene coatings and methods for their vapor-phase deposition.Type: ApplicationFiled: March 14, 2013Publication date: August 22, 2013Applicant: SPECIALTY COATING SYSTEMS, INC.Inventor: Specialty Coating Systems, Inc.
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Patent number: 8509669Abstract: The present teachings disclose a surface coating. The surface coating includes a fluoroplastic having dispersed therein aerogel particles wherein the aerogel particles comprise from about 0.1 weight percent to about 25 weight percent of the surface coating. The surface coating is useful as an out layer for fuser members.Type: GrantFiled: March 22, 2011Date of Patent: August 13, 2013Assignee: Xerox CorporationInventors: Carolyn P. Moorlag, Yu Qi, Nicoleta D. Mihai, Gordon Sisler, Sandra J. Gardner, Qi Zhang, Nan-Xing Hu
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Publication number: 20130202838Abstract: The disclosure herein includes rapid gas decompression (RGD)-resistant fluoroelastomeric compositions and includes a curable fluoropolymer having a curesite monomer with at least one functional group capable of curing with a peroxide curative. The compositions include a bisphenyl-based curative and an organic peroxide curative and an organic peroxide co-curative. The fluoroelastomeric compositions have a ratio of the bisphenyl-based curative to the organic peroxide co-curative of about 0.25:1 to about 1.5:1 and a ratio of the bisphenyl-based curative to the organic peroxide of about 0.5:1 to about 1.5:1. Such compositions can be formed into seals meeting RGD industry standards in a variety of sizes, up to and/or exceeding 5 mm in thickness or cross-sectional diameter.Type: ApplicationFiled: February 4, 2013Publication date: August 8, 2013Applicant: GREENE, TWEED OF DELAWARE, INC.Inventor: Greene, Tweed of Delaware, Inc.
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Patent number: 8481624Abstract: The invention relates to a process for the preparation of thermoplastic molding materials comprising A) from 39 to 99% by weight of at least one thermoplastic polymer, B) from 1 to 60% by weight of a flameproofing component comprising B1) an expandable graphite, and C) from 0 to 60% by weight of further additives, the percentages by weight being based in each case on the total weight of the components A) to C) and together giving 100% by weight, by mixing melts of the components A), B) and, if present, C) in a screw extruder, the screw extruder comprising at least one metering zone, one plasticating zone, one homogenization zone and one discharge zone in this sequence along the conveying direction, wherein the metering of the expandable graphite B1) into the screw extruder is effected at a point behind which—viewed in the conveying direction—the extruder screw comprises substantially no shearing elements, and thermoplastic molding materials which can be prepared by these processes, the use of said theType: GrantFiled: September 23, 2008Date of Patent: July 9, 2013Assignee: Styrolution GmbHInventors: Maarten Pieter Bram Staal, Norbert Güntherberg, Piyada Charoensirisomboon, Hartmut Heinen, Norbert Nieβner, Walter Heckmann
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Patent number: 8466231Abstract: A process of reducing the amount of fluorinated emulsifiers in fluoropolymer dispersions by contacting the fluoropolymer dispersion with an anion exchange resin in the presence of a pH-dependent surfactant, and fluoropolymer dispersion containing the pH-dependent surfactant and uses thereof.Type: GrantFiled: April 8, 2009Date of Patent: June 18, 2013Assignee: 3M Innovative Properties CompanyInventors: Michael C. Dadalas, Klaus Hintzer, Ludwig Mayer, Tilman C. Zipplies, James Arthur McDonell
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Publication number: 20130150519Abstract: A fluoropolymer latex is obtained by emulsion polymerization of one or more fluoromonomers in the presence of one or more acid-functionalized monomers such as vinyl sulfonic acid or a salt thereof. A fluorosurfactant need not be present.Type: ApplicationFiled: August 30, 2011Publication date: June 13, 2013Applicant: Arkema Inc.Inventors: Mehdi Durali, Lotfi Hedhli
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Publication number: 20130122309Abstract: The invention relates to a polyvinylidene fluoride (PVDF) solvent dispersion composition containing PVDF (such as KYNAR 500) that is free of fluorosurfactants, an organic solvent, and low levels of dispersants. A pigmented version of this dispersion is also covered. The dispersion is useful for producing tough, chemical-resistant coatings, especially on metallic substrates, including for use as a coil coating or an architectural coating.Type: ApplicationFiled: September 28, 2012Publication date: May 16, 2013Applicant: Arkema Inc.Inventor: Arkema Inc.
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Patent number: 8426509Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min, as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo)fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: GrantFiled: June 27, 2006Date of Patent: April 23, 2013Assignee: Solvay Solexis S.p.A.Inventors: Julio A. Abusleme, Giulo Brinati, Pier Antonio Guarda
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Patent number: 8415423Abstract: A melt-kneaded product includes: a disperse medium selected from an a rubber, elastomer, thermoplastic resin, or thermosetting resin; and a filling material constituted by nano-size filler particles having a mutually aggregating nature, said nano-size filler particles being uniformly dispersed in the disperse medium.Type: GrantFiled: January 26, 2011Date of Patent: April 9, 2013Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Hiroshi Shimizu, Yongjin Li
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Publication number: 20130081695Abstract: A thin sheet for a solar cell module is provided, which includes a substrate and at least one fluoro-containing coating layer, wherein the fluoro-containing coating layer includes: (a) a fluoro resin, including a homopolymer or a copolymer formed with a fluoro olefin monomer selected from the group consisting of monofluoroethylene, vinylidene fluoride, chlorotrifluoroethylene, tetrafluoroethylene, hexafluoropropylene, and a combination thereof; (b) an adhesion promoter of the formula R1Si(R2)3; and (c) an adhesion co-promoter, wherein R1 and R2 are as defined in the specification. A solar cell module having the thin sheet is further provided.Type: ApplicationFiled: August 30, 2012Publication date: April 4, 2013Inventors: Tsun-Min HSU, Chi-Tsung HUANG, Hao-Tien BAI
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Patent number: 8399565Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min, as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo)fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: GrantFiled: June 27, 2006Date of Patent: March 19, 2013Assignee: Solvay Solexis S.p.A.Inventors: Julio A. Abusleme, Giulo Brinati, Pier Antonio Guarda
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Publication number: 20130066010Abstract: The present invention provides a molded article for a biodiesel fuel having excellent durability against a biodiesel fuel. The invention is a molded article for a biodiesel fuel of which the surface to be contacted with a biodiesel fuel is made of a fluorine-containing ethylenic resin.Type: ApplicationFiled: November 5, 2012Publication date: March 14, 2013Applicant: DAIKIN INDUSTRIES, LTD.Inventor: Daikin Industries, Ltd.
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Patent number: 8357747Abstract: The present invention describes polymer compositions comprising fluoroelastomer and expanded perlite and uses thereof.Type: GrantFiled: December 28, 2007Date of Patent: January 22, 2013Assignee: Imerys Filtration Minerals, Inc.Inventors: Michael Greene, Roger Norman Rothon, Nigel Julian Keith Danvers, Qingchun Hu
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Patent number: 8357739Abstract: A thermoplastic composition that includes a base polymer, a fluoropolymer, and a fluoride scavenger having suitable fluoride levels such that use in the electronics industry is appropriate. An extrusion method may be used for making the thermoplastic composition. The compositions may then be used to form a molded article. The composition has lower fluoride levels as compared to thermoplastic compositions without the fluoride scavenger making it suitable for use in electronic applications, as well as medical or food or beverage applications where fluoride ions are a concern.Type: GrantFiled: December 11, 2006Date of Patent: January 22, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Xin Huang, Tong Sun, Huagui Yang, David Xiangping Zou
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Patent number: 8354469Abstract: The invention concerns a composition comprising: at least one melt-processible per(halo)fluoropolymer (polymer A); from 0.01 to 5% by weight of polymer A of at least one smoke-suppressant agent (S) having a decomposition temperature of at least 350° C., selected from the group consisting of molybdenum derivatives, borates of an alkaline-earth metal or of a group 12 transition metal, and mixtures thereof; optionally, at least one oxide of a metal different from molybdenum. The composition of the invention excels simultaneously in providing excellent insulating properties on meal wires or optical fibers, outstanding processing parameters for high speed cable manufacture and high performance ratings on flammability, smoke generation and fuel load. Advantageously, cables comprising said composition comply with 25/50/8 requirements according to NFPA-255 and -259 for limited combustible materials.Type: GrantFiled: November 23, 2006Date of Patent: January 15, 2013Assignee: Solvay Solexis, Inc.Inventors: Anthony V. Zangara, Jeffrey A. Hrivnak
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Patent number: 8353822Abstract: A molded elastomer for an endoscope is provided, which includes a fluorine-containing elastomer and a filler. The filler includes thermal black in a content of 1 to 10 parts by mass based on 100 parts by mass of the fluorine-containing elastomer, and plate alumina in a content of 2 to 10 parts by mass based on 100 parts by mass of the fluorine-containing elastomer.Type: GrantFiled: September 21, 2011Date of Patent: January 15, 2013Assignees: Olympus Medical Systems Corp., Olympus CorporationInventors: Yuko Hirano, Mitsuhiro Nakamura, Akinobu Nakano, Hirokazu Kamioka
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Patent number: 8354774Abstract: A dielectric material for a polymeric actuator having a moveable part of the polymeric actuator driven by an electric field, the dielectric material containing a block copolymer (A) having a microphase-separated structure including a polymer block (B1) and a polymer block (B2), both of which are immiscible with each other. A main compositional unit in both of the polymer block (B1) and the polymer block (B2) is a (meth)acrylic ester unit, the polymer block (B1) having an alpha-dispersion temperature of 70° C. or more, and the polymer block (B2) having an alpha-dispersion temperature of 25° C. or less. The polymeric actuator provides the dielectric material between electrodes.Type: GrantFiled: August 7, 2008Date of Patent: January 15, 2013Assignees: Kuraray Co., Ltd., Shinshu UniversityInventors: Toshinori Kato, Tomiaki Otake, Taketoshi Okuno, Nozomu Sugoh, Toshihiro Hirai
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Patent number: 8338518Abstract: A novel aqueous polymerization process for making fluoropolymer dispersions is disclosed in which non-ionic non-fluorinated emulsifier is used to produce fluoropolymer emulsions. The emulsifiers used in the invention are those that contain segments of polyethylene glycol, polypropylene glycol, and/or polytetamethylene glycol with repeating units of 3 to 100. The process and fluoropolymer produced contain no fluorinated surfactant.Type: GrantFiled: December 8, 2006Date of Patent: December 25, 2012Assignee: Arkema Inc.Inventors: Ramin Amin-Sanayei, Christyn Olmstead
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Patent number: 8338517Abstract: Aqueous compositions comprising surfactant represented by a formula selected from the group consisting of: [Rf—(O)t—CHF—(CF2)n—COO?]iXi+; {[Rf—(O)t—CQH—CF2—O]m—R—COO?}iXi+; {[Rf—(O)t—CQH—CF2—O]m—R—SO3?}iXi+; and [CF3CFH—O—(CF2)p—COO?]iXi+; wherein Rf represents a partially or fully fluorinated aliphatic group optionally interrupted with at least one oxygen atom; Q is selected from the group consisting of F and CF3; R is selected from the group consisting of alkylene and arylene; Xi+ represents a cation having a valence i, wherein i is 1, 2 or 3; t is 0 or 1; m is 1, 2, or 3; n is 0 or 1; and p is an integer from 1 to 6. The aqueous composition comprises a non-fluorinated polymer and is essentially free of fluoropolymers. Methods of coating a surface and an article having a surface in contact with the composition are provided.Type: GrantFiled: May 21, 2008Date of Patent: December 25, 2012Assignee: 3M Innovative Properties CompanyInventors: Rudolf J. Dams, Michael S. Terrazas
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Patent number: 8329813Abstract: A process for reducing the fluoroether carboxylic acid or salt content of aqueous fluoropolymer dispersion. The fluoroether carboxylic acid or salt employed comprises fluoroether carboxylic acid or salt having the formula below: [R1—O-L-COO?]Y+ wherein R1 is a linear, branched or cyclic partially or fully fluorinated aliphatic group which may contain ether linkages; L is a branched partially or fully fluorinated alkylene group which may contain ether linkages; and Y+ is hydrogen, ammonium or alkali metal cation. The process comprises adding stabilizer to the aqueous fluoropolymer dispersion to form a stabilized aqueous fluoropolymer dispersion and heating the stabilized aqueous fluoropolymer dispersion to decarboxylate the fluoroether carboxylic acid or salt to produce a fluoroether byproduct. At least a portion of the fluoroether byproduct is removed.Type: GrantFiled: May 5, 2010Date of Patent: December 11, 2012Assignee: E I du Pont de Nemours and CompanyInventors: David William Johnson, Kenneth Scott Teter
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Patent number: 8329782Abstract: 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: GrantFiled: December 18, 2009Date of Patent: December 11, 2012Assignee: E I du Pont de Nemours and CompanyInventors: James R. Combes, David William Johnson, Stephen Thomas Breske
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Publication number: 20120309892Abstract: A binder composition for the positive electrode of an electric storage device. The composition contains polymer alloy particles composed of: a polymer (A) having a recurring unit derived from vinylidene fluoride, ethylene tetrafluoride, propylene hexafluoride, or mixtures thereof; a polymer (B) having a recurring unit derived from an unsaturated carboxylic acid ester; and water. The average diameter of the polymer alloy particles is 50 to 400 nm. The polymer alloy particles are synthesized by absorbing a monomer (b) to the polymer (A) and polymerizing the monomer (b) to synthesize the polymer (B).Type: ApplicationFiled: December 28, 2011Publication date: December 6, 2012Applicant: JSR CORPORATIONInventors: Yoshiharu Ootsuka, Hironori Kitaguchi, Nobuyuki Fujihara
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Publication number: 20120283371Abstract: A method for casting a styrenic fluoropolymer film on a substrate includes preparing a polymer solution by dissolving the fluoropolymer in a solvent or solvent blend whose Hansen solubility parameters (HSPs. MPa1/2) satisfy the following relations: |SPb?SPp|<5, |SPb?SPs|<4, |SPb(H)?SPp(H)|<7, and 2<|SPb(H)?SPs(H)|<10 wherein SPb, SPp, SPs, are the total Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; SPb(H), SPp(H), and, SPs(H) are the hydrogen-bond Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; wherein the fluoropolymer comprises a moiety of: wherein R1, R2, and R3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R1, R2, and R3 is a fluorine atom, and wherein R is each independently a substituent on the styrenic ring, n is an integer from 0 to 5 representing the number of the substituents on the styrenic ring.Type: ApplicationFiled: May 1, 2012Publication date: November 8, 2012Applicant: AKRON POLYMER SYSTEMS, INC.Inventors: BIN WANG, THAUMING KUO, DOUGLAS STEPHENS McWILLIAMS, FRANK W. HARRIS, TED CALVIN GERMROTH, JIAOKAI JING, DONG ZHANG, XIAOLIANG ZHENG
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Publication number: 20120247457Abstract: The present invention is to provide a coating composition for surface coating capable of forming a cured coating film layer that protects a reflective substrate of a solar heat-collecting reflective plate and that is excellent in the impact resistance and the weather resistance such as the heat resistance and the water resistance, as well as a solar heat-collecting reflective plate having such a cured coating film layer, and a process for its production. A coating composition for surface coating to be used for the production of a solar heat-collecting reflective plate having a reflective substrate made of metal, which comprises a fluoropolymer (A) having units (A1) derived from a fluoroolefin and units (A2) having a crosslinkable group. Further, a solar heat-collecting reflective plate having a cured coating film layer formed from the coating composition for surface coating, and a process for its production.Type: ApplicationFiled: June 13, 2012Publication date: October 4, 2012Applicant: Asahi Glass Company, LimitedInventors: Shun SAITO, Masataka Aikawa, Takashi Takayanagi, Sho Masuda
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Patent number: 8278366Abstract: The present invention relates generally to the use of talc as a chemical foaming agent in perfluoropolymers to form foamable and foamed compositions. For example, in one aspect, a foamable composition is disclosed, which comprises (i) one or more base perfluoropolymers comprising at least 50 percent by weight of the composition, and (ii) talc blended with the one or more base perfluoropolymers, where the talc comprises 3 percent to about 15 percent by weight of the composition. Each of the perfluoropolymers is selected from the group consisting of tetrafluoroethylene/perfluoromethylvinyl ether copolymer (MFA), hexafluoropropylene/tetrafluoroethylene copolymer (FEP) and perfluoroalkoxy (PFA) and any blend thereof, where hydrogen-containing fluoropolymers are absent from the composition. The one or more base perfluoropolymers are melt-processable at one or more elevated processing temperatures of at least about 600° F.Type: GrantFiled: May 17, 2011Date of Patent: October 2, 2012Inventors: Charles Glew, Kenneth Boyle, Bradley L. Kent, Jeffrey A. Hrivnak
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Patent number: 8263224Abstract: Disclosed is a resin composition containing a hexagonal ferrite and a resin, which is characterized in that the hexagonal ferrite is contained in an amount of 50-98 parts by weight per 100 parts by weight of the total of the resin composition.Type: GrantFiled: November 28, 2007Date of Patent: September 11, 2012Assignee: Asahi Kasei Chemicals CorporationInventor: Tetsuji Tokiwa
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Publication number: 20120213915Abstract: Provided is a process for producing vinylidene fluoride polymer powder that exhibits excellent solubility with respect to aprotic polar solvents, and a process for producing a vinylidene fluoride polymer solution using vinylidene fluoride polymer powder obtained by the polymer powder production process. The process for producing heat-treated vinylidene fluoride polymer powder includes heat treating raw vinylidene fluoride polymer powder at such a temperature that the temperature of the polymer powder is not less than 125° C. to less than the crystal melting temperature (Tm) of the polymer.Type: ApplicationFiled: October 28, 2010Publication date: August 23, 2012Applicant: KUREHA CORPORATIONInventors: Tamito Igarashi, Hiroshi Sakabe, Emi Sugawara, Shintarou Mutou
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Publication number: 20120208085Abstract: Provided is a vinylidene fluoride polymer powder exhibiting excellent solubility in aprotic polar solvents, and a vinylidene fluoride polymer solution obtained from the powder and an aprotic polar solvent. The vinylidene fluoride polymer powder has an NMP penetration rate of 12 to 100% as measured by an NMP penetration test.Type: ApplicationFiled: October 28, 2010Publication date: August 16, 2012Applicant: KUREHA CORPORATIONInventors: Tamito Igarashi, Hiroshi Sakabe, Emi Sugawara, Shintarou Mutou
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Patent number: 8231957Abstract: Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.Type: GrantFiled: October 9, 2007Date of Patent: July 31, 2012Assignee: Gore Enterprise Holdings, Inc.Inventors: Christopher Bowen, Kevin Edward Dove, Carl Jones, Raymond B. Minor
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Patent number: 8227526Abstract: 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: GrantFiled: December 18, 2009Date of Patent: July 24, 2012Assignee: E I du Pont de Nemours and CompanyInventors: James R. Combes, David William Johnson, Stephen Thomas Breske
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Publication number: 20120164423Abstract: The present invention provides an organic/inorganic composite film, which includes a poly(vinylidene fluoride) (PVDF) and inorganic nano-platelets dispersed therein. A weight ratio of the PVDF and the inorganic nano-platelets is between about 97:3 and 20:80. The inorganic nano-platelets have a particle size of about 20-80 nm, wherein the organic/inorganic composite film has a transparency of greater than about 85% at a wavelength between 380 and 780 nm. In addition, a method for forming the organic/inorganic composite film is also provided.Type: ApplicationFiled: September 12, 2011Publication date: June 28, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chun-Wei SU, Chyi-Ming LEU, Chih-Jen YANG
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Publication number: 20120157590Abstract: Provided is a process for producing non-aqueous battery electrode-forming binder solutions which includes a step of performing filtration with a filtration accuracy that enables suppressing of the occurrence of internal short circuits (shorts) in non-aqueous batteries such as lithium ion secondary batteries. The process includes a step (A) of filtering a polymer solution of a vinylidene fluoride resin in an organic solvent through a filter membrane (a) that is made of a polyolefin resin and has an initial filtration efficiency of not less than 99.9% for a filtering particle size of 20 ?m.Type: ApplicationFiled: August 19, 2010Publication date: June 21, 2012Applicant: KUREHA CORPORATIONInventors: Masaomi Yoshida, Taichi Kimura, Hideki Kitamura
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Publication number: 20120141757Abstract: An electronic device, such as a thin-film transistor, includes a substrate and a dielectric layer formed from a dielectric composition. The dielectric composition comprises a dielectric material and a low surface tension additive. The low surface tension additive allows for the formation of a thin, smooth dielectric layer with fewer pinholes and enhanced device yield. In particular embodiments, the dielectric material comprises a lower-k dielectric material and a higher-k dielectric material. When deposited, the lower-k dielectric material and the higher-k dielectric material form separate phases.Type: ApplicationFiled: December 1, 2010Publication date: June 7, 2012Applicant: XEROX CORPORATIONInventors: Yiliang Wu, Yulin Wang, Ping Liu, Nan-Xing Hu, Anthony James Wigglesworth
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Patent number: 8193277Abstract: To provide a water/oil repellent composition which is capable of imparting sufficient dynamic water repellency and post-air-drying water repellency to the surface of an article and which presents a low environmental impact, a method for its production and a method for treating an article. A water/oil repellent composition which comprises a copolymer having structural units based on the following monomer (a) and structural units based on the following monomer (b) and having a mass average molecular weight of at least 40,000, and a medium, is used. Monomer (a): a compound represented by (Z—Y)nX, wherein Z is a C1-6 polyfluoroalkyl group or the like, Y is a bivalent organic group or the like, n is 1 or 2, and X is a polymerizable unsaturated group. Monomer (b): an olefin, a homopolymer of which has a glass transition temperature of from ?50° C. to 50° C.Type: GrantFiled: October 21, 2011Date of Patent: June 5, 2012Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Otozawa, Kazunori Sugiyama, Minako Shimada, Yuuichi Oomori
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Patent number: 8183319Abstract: An aqueous dispersion including a partially fluorinated dispersant, an electrically conductive polymer and a film forming additive. The film forming additive includes a boiling temperature greater than about 85° C. (185° F.). In addition, the concentration of the film forming additive is less than the solubility limit of the additive in water. The dynamic surface tension of the dispersion including the film forming additive is less than about 60 dynes/cm at 100 ms surface age. A method for making an electrically conductive polymer film and devices including electrically conductive polymer film are also disclosed.Type: GrantFiled: October 9, 2008Date of Patent: May 22, 2012Assignee: Air Products and Chemicals, Inc.Inventors: Gang Chris Han-Adebekun, Thomas John Markley, Michael Scott Lowry
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Patent number: 8178612Abstract: The present invention relates to an aqueous/oil emulsion containing fluoropolymer that is capable of forming thick coatings in a single pass, which coatings after drying and baking are free of cracks.Type: GrantFiled: January 19, 2005Date of Patent: May 15, 2012Assignee: E. I. du Pont de Nemours and CompanyInventor: Jurgen Hofmans
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Publication number: 20120095151Abstract: The present invention provides a complex-shaped fluororubber formed product having excellent demoldability in molding. The complex-shaped fluororubber formed product of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: April 19, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120095150Abstract: The present invention provides a fluororubber composition that has excellent heat resistance and excellent mechanical properties at high temperatures. The fluororubber composition comprises a peroxide cross-linkable fluororubber (A); a carbon black (B); a peroxide cross-linking agent (C); and a low-self-polymerizing cross-linking accelerator (D), wherein to 100 parts by mass of the fluororubber (A), the amount of the carbon black (B) is 5 to 50 parts by mass, the amount of the cross-linking agent (C) is 0.01 to 10 parts by mass, and the amount of the cross-linking accelerator (D) is 2.5 parts by mass or smaller.Type: ApplicationFiled: August 25, 2011Publication date: April 19, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke OTA, Yutaka Ueta, Masanori Kitaichi, Shoji Fukuoka
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Patent number: 8158235Abstract: Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.Type: GrantFiled: October 9, 2007Date of Patent: April 17, 2012Assignee: W. L. Gore & Associates, Inc.Inventors: Christopher Bowen, Kevin Edward Dove, Carl Jones, Raymond B. Minor
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Publication number: 20120077926Abstract: The present invention provides a method for producing a fluororubber composition that has excellent heat resistance and excellent mechanical properties at high temperatures. The production method comprises the step of mixing a fluororubber (A) and a carbon black (B) in the presence of an organic amine compound (C1) and/or an acid acceptor (C2) to prepare a mixed product, wherein the mixed product has a highest temperature Tm of 80° C. to 220° C. while being mixed and has a highest temperature of 80° C. to 220° C. upon being discharged.Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke OTA, Yutaka UETA, Masanori KITAICHI, Shoji FUKUOKA
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Publication number: 20120077915Abstract: The present invention provides an aqueous fluororesin dispersion comprising a melt-processable fluororesin which is low in fluorinated surfactant concentration and excellent in dispersion stability even when the concentration of the melt-processable fluororesin is high. The present invention is related to an aqueous fluororesin dispersion comprising a melt-processable fluororesin particle dispersed in an aqueous medium, wherein a concentration of the melt-processable fluororesin is 55 to 75% by mass relative to the aqueous fluororesin dispersion, and a fluorinated surfactant content in the aqueous fluororesin dispersion is not higher than a level corresponding to 100 ppm of the melt-processable fluororesin.Type: ApplicationFiled: December 8, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Chie SAWAUCHI, Nobuhiko TSUDA
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Publication number: 20120070598Abstract: A polyolefin composition having an increased modulus of elasticity as well as increased heat resistance, wherein the polymer composition has high melt viscosity, and wherein the composition contains a carbon material as a filler, wherein the filler is present in the form of a carbon nanofiber.Type: ApplicationFiled: May 20, 2010Publication date: March 22, 2012Applicant: GEORG FISCHER ROHRLEITUNGSSYSTEME AGInventors: Stephan Schuessler, Michaela Lendl, Bernd Kretzschmar
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Publication number: 20120053287Abstract: The problem to be solved is to provide a resin composition for an organic thin film transistor insulating layer which can cross-link without being subjected to a treatment at a high temperature for a long time to form an insulating layer excellent in surface adhesion property. The solving means is a resin composition for an organic thin film transistor insulating layer comprising (A) a macromolecular compound comprising a repeating unit having a photosensitive group s linked through a urea bond or a urethane bond, (B) a curing agent and (C) an organic solvent.Type: ApplicationFiled: January 7, 2010Publication date: March 1, 2012Applicant: Sumitomo Chemical Company, LtdInventor: Isao Yahagi
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Publication number: 20120045603Abstract: The invention relates to a foamed fluoropolymer, preferably a polyvinylidene fluoride (PVDF) structure, such as from Kynar® resins. The foamed structure is continuous self-supporting, sized, and has a dense skin. The foamed structure is manufactured in a process using foaming agents and nucleating agents. The structure is sized into a specific shape during the manufacturing process—requiring a good melt viscosity of the PVDF foam. In one process, a master batch containing the nucleating agent is used. The foamed article could be a sheet, film, profile, tube, pipe, article, rod foam-core structure, or other self-supporting shape. Foamed tubes, pipes, rods, sheets and conduit are especially useful. The foamed structure of the invention provides added value by being lighter weight, more flexible, and more impact resistant than a comparable non-foamed PVDF structure. It also has increased hysteresis, increased insulation properties, reduced dielectric constant, and increased compressibility.Type: ApplicationFiled: April 22, 2010Publication date: February 23, 2012Applicant: Arkema Inc.Inventors: Saeid Zerafati, Sean M. Stabier
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Publication number: 20120045954Abstract: Highly durable hydrophobic, oleophobic, and anti-icing coatings and methods of their preparation and use are described herein.Type: ApplicationFiled: April 7, 2011Publication date: February 23, 2012Applicant: ROSS TECHNOLOGY CORPORATIONInventors: Douglas BLEECHER, Philip Harsh, Michael Hurley, Andrew K. Jones, Russell Ross, Vinod K. Sikka, Donald Zielke
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Patent number: 8110249Abstract: An antireflective coating composition includes a photopolymerizable acrylate monomer (C1); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; a photopolymerization initiator (C3); and at least one liquid dispersion-enhancing chelating agent (C4) selected from the group consisting of Mg(CF3COO)2, Na(CF3COO), K(CF3COO), Ca(CF3COO)2, Mg(CF2COCHCOCF3)2 and Na(CF2COCHCOCF3). This composition ensures good mechanical strength, excellent adhesion to a substrate, short curing time by UV curing, prevention of dust attachment, good erasure of stain, good dust removal and good scratch resistance, so it is usefully for making an antireflective coating film of a display.Type: GrantFiled: July 6, 2007Date of Patent: February 7, 2012Assignee: LG Chem, Ltd.Inventors: Joon-Koo Kang, Mi-Young Han, Young-Eun Lee, Young-Jun Hong, Yeong-Rae Chang