From Fluorine-containing Monomer Patents (Class 524/544)
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Patent number: 7985790Abstract: A fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer [polymer (F)]; water; less than 15% wt (based on total weight of composition) of a water-soluble solvent mixture [mixture (M)] comprising: at least one alcohol solvent [solvent (A)]; at least one glycol derivative solvent having a boiling point of at least 100° C. [solvent (GD)], wherein the solvent (GD) is a derivative of a compound comprising at least two hydroxyl groups, wherein at least one of the hydroxyl group has been derivatized to yield an ether or an ester bond.Type: GrantFiled: December 4, 2006Date of Patent: July 26, 2011Assignee: Solvay Solexis, S.p.A.Inventors: Fabio Polastri, Tiziana Poggio, Julio A. Abusleme
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Patent number: 7976583Abstract: Short-chain perfluoroalkylethyl methacrylates copolymerized with vinyl chloride and/or vinylidene chloride, a C12-C22 alkyl (meth)acrylate and one or more thermally crosslinkable or isocyanate-reactive monomers are useful for oil-, water- and soil-repellent finishing of fibrous substrates under particularly mild conditions.Type: GrantFiled: August 20, 2007Date of Patent: July 12, 2011Assignee: Clariant Finance (BVI) LimitedInventors: Hans Goetz, Florian Bauers, Wolfgang Knaup
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Patent number: 7973091Abstract: A process for producing flowable and liquid dispersable particles of a highly fluorinated ion exchange polymer is provided in which a dispersion of a highly fluorinated ion exchange polymer in a liquid comprised of at least 10 wt % of an organic liquid is provided, atomized to produce droplets, and released into a inert heated gas. The dispersion droplets dry to produce flowable particles of highly fluorinated ion exchange polymer having dry exterior surfaces and an internal residual moisture content of at least 4 wt %.Type: GrantFiled: December 13, 2007Date of Patent: July 5, 2011Assignee: E. I. du Pont de Nemours and CompanyInventor: Vinci Martinez Felix
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Patent number: 7973103Abstract: The present invention discloses a fuser roller composition that contains a fluorocopolymer, an aliphatic ketone organic solvent, metal oxide particles, and a benzyltriphenylphosphonium phenolate salt curing agent. To this composition is added a sufficient amount of 4,4?-(hexafluoroisopropylidene) diphenol to extend a time at which viscosity of the composition rises above a predetermined level.Type: GrantFiled: June 5, 2006Date of Patent: July 5, 2011Assignee: Eastman Kodak CompanyInventors: Xin Jin, Douglas E. Garman
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Publication number: 20110159221Abstract: Disclosed herein is a method of manufacturing inorganic hollow yarns, such as cermets, oxide-non oxide composites, poorly sinterable non-oxides, and the like, at low costs. The method includes preparing a composition comprising a self-propagating high temperature reactant, a polymer and a dispersant, wet-spinning the composition through a spinneret to form wet-spun yarns, washing and drying the wet-spun yarns to form polymer-self propagating high temperature reactant hollow yarns, and heat-treating the polymer-self propagating high temperature reactant hollow yarns to remove a polymeric component from the polymer-self propagating high temperature reactant hollow yarns while inducing self-propagating high temperature reaction of the self-propagating high temperature reactant to form inorganic hollow yarns. The composition comprises 45˜60 wt % of the self-propagating high temperature reactant, 6˜17 wt % of the polymer, 0.1˜4 wt % of the dispersant, and the balance of an organic solvent.Type: ApplicationFiled: September 9, 2010Publication date: June 30, 2011Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Churl-Hee CHO, Do-Kyung KIM, Jeong-Gu YEO, Young-Soo Ahn, Dong-Kook KIM, Hong-Soo KIM
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Patent number: 7968613Abstract: 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: August 1, 2008Date of Patent: June 28, 2011Inventors: Charles A. Glew, Kenneth R. Boyle, Bradley Lane Kent, Jeffrey A Hrivnak
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Patent number: 7968644Abstract: The present invention provides a method of producing a fluororesin aqueous dispersion which can produce a fluororesin aqueous dispersion low in fluorine-containing surfactant concentration and high in polytetrafluoroethylene concentration with high efficiency. The invention provides a method of producing a fluororesin aqueous dispersion which comprises subjecting a crude fluororesin aqueous dispersion comprising a polytetrafluoroethylene particle dispersed in an aqueous medium to treatment with an ion-exchange resin and to treatment for concentration by phase separation in the presence of an electrolyte and/or a fluorine-free anionic surfactant.Type: GrantFiled: June 21, 2007Date of Patent: June 28, 2011Assignee: Daikin Industries, Ltd.Inventors: Chie Sawauchi, Nobuhiko Tsuda
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Patent number: 7968625Abstract: A process for producing an aqueous fluoropolymer dispersion which includes adding a specific compound to a to-be-treated aqueous fluoropolymer dispersion containing a particle of fluoropolymer dispersed therein, the to-be-treated aqueous fluoropolymer dispersion containing a fluorinated surfactant (A) with a molecular weight lower than 1000 in an amount of 100 ppm or less of the fluoropolymer and the specific compound being (1) a sulfosuccinic acid alkyl ester or a salt thereof, or a sulfosuccinic acid fluoroalkyl ester or a salt thereof, (2) the fluorinated surfactant (A), (3) a fluorinated surfactant (B) with a molecular weight lower than 1000, differing from the fluorinated surfactant (A) and/or (4) an aliphatic carboxylic acid or a salt thereof, which compound is added in total amount of 10 to 5000 ppm of said fluoropolymer.Type: GrantFiled: June 9, 2006Date of Patent: June 28, 2011Assignee: Daikin Industries, Ltd.Inventors: Chie Sawauchi, Nobuhiko Tsuda
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Patent number: 7964274Abstract: Tensile strength after heat aging of articles molded from melt-fabricable perfluoropolymer is improved by incorporating polytetrafluoroethylene as dispersed submicrometer-size particles into the melt-fabricable perfluoropolymer.Type: GrantFiled: November 16, 2006Date of Patent: June 21, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Ralph Munson Aten, Heidi Elizabeth Burch, Sharon Ann Libert
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Publication number: 20110135861Abstract: Compositions having a fluoropolymer with a nitrile-containing cure site and at least a) a mono azide with at least one functional group in the beta position, or b) a polyazide, as a curing agent as well as methods and articles thereof are described. Articles of this disclosure are found to exhibit excellent chemical resistance and thermal stability.Type: ApplicationFiled: April 16, 2009Publication date: June 9, 2011Inventors: Anthony P. Manzara, Yvan A. Borgaert, Micheal D. Crandall, Robert E. Eggers, Aron Y. Goodner, Werner M.A. Grootaert
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Publication number: 20110123810Abstract: An aqueous composition of a non-siliceous fluorocarbon polymer forms a dry deposit derived from the non-siliceous fluorocarbon polymer on the surface of construction material; the non-siliceous fluorocarbon polymer being characterized by the presence of fluorocarbon units of up to 6 carbon atoms; this non-siliceous fluorocarbon polymer is a protecting agent imparting an excellent water and oil repellency and also protection against stains and dirt, to bricks, clay roofing, different kinds of tiles, marble, granite, slate, stucco,paving stones, unglazed ceramic, sandstones, limestone, wood and other objects; it is durable and can be processed at low temperature; the composition may also include silicone based agents and acrylics and can provide a natural, satin or wet look to the construction material surface.Type: ApplicationFiled: November 25, 2009Publication date: May 26, 2011Inventor: Yassin Elgarhy
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Publication number: 20110123925Abstract: A polymer includes a first repeating unit represented by the following Chemical Formula 1, and a second repeating unit including at least one repeating unit represented by the following Chemical Formulae 2 to 6.Type: ApplicationFiled: November 19, 2010Publication date: May 26, 2011Inventors: Sang-Geun YUN, Sang-Jun Choi, Seung-Jib Choi, Sung-Jae Lee
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Publication number: 20110123933Abstract: A polymer, including a polymerized monomer, the monomer being represented by the following Chemical Formula 1:Type: ApplicationFiled: September 27, 2010Publication date: May 26, 2011Inventors: Sang-Geun YUN, Sang-Jun Choi, Seung-Jib Choi, Sung-Jae Lee, Jin-Young Lee
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Patent number: 7947775Abstract: Aqueous dispersions on non-melt flowable PTFE and melt-fabricable perfluoropolymer are mixed together, followed by recovery of the resultant mixture of the dispersed particles of each of these polymers, and melt mixing of the resultant mixture of particles to obtain a blend in which the PTFE particles form the disperse phase and the perfluoropolymer forms the continuous phase, the melt mixing producing advantageous melt viscosities and the blend exhibiting advantageous physical properties even at high PTFE contents of about 30 wt %.Type: GrantFiled: September 29, 2009Date of Patent: May 24, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Sundar Kilnagar Venkataraman, Ralph Munson Aten, Heidi Elizabeth Burch
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Publication number: 20110118405Abstract: The present invention relates to an active-energy-ray-curable coating composition containing, as essential components, a radical-polymerizable resin (I) containing a polymer structure (?) of a radical-polymerizable unsaturated monomer and a poly(perfluoroalkylene ether) chain (?), and having a resin structure in which a plurality of the polymer structures (?) are linked to each other with the poly(perfluoroalkylene ether) chain (?) therebetween and the polymer structures (?) each have a radical-polymerizable unsaturated group at a side chain thereof; and a polymerization initiator (II). The active-energy-ray-curable coating composition can be used as a coating material that imparts surface properties such as stain-proof properties.Type: ApplicationFiled: April 15, 2009Publication date: May 19, 2011Applicant: DIC CorporationInventors: Hideya Suzuki, Shin Sasamoto
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Patent number: 7939591Abstract: The present disclosure relates to a resin composition having excellent thermal stability, light reflectivity and color, and, preferably, flame retardancy. The present disclosure also relates to a method for producing a resin composition which comprises mixing 60 to 99.9 parts by weight of polycarbonate resin (component A) with 0.1 to 40 parts by weight of titanium dioxide pigment (component B), wherein component B (i) satisfies 0.05?(b)?(a)?0.6, when weight. reduction at 23 to 100° C. by thermogravimetric analysis (TGA) is (a) wt % and weight reduction at 23 to 300° C. by TGA is (b) wt %, and (ii) satisfies 0.001?(d)/(c)?0.01 and 0.001?(e)/(c)?0.02, when weight percentages derived from Ti, Al and Si elements in X-ray fluorescence analysis are (c) wt %, (d) wt % and (e) wt %, respectively.Type: GrantFiled: May 18, 2006Date of Patent: May 10, 2011Assignee: Teijin Chemicals, Ltd.Inventor: Takuya Tomoda
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Publication number: 20110103854Abstract: Provided are fuser members and printing apparatuses including fuser members. The fuser member can include a substrate and a top coat layer including a hyper nanocomposite disposed over the substrate, wherein the hyper nanocomposite can include a plurality of nanoparticles substantially uniformly dispersed in one or more cross-linked hyperbranched polymers selected from the group consisting of polycarbosilane, polycarbosilixane, polycarbosilazene, and polyfluorocarbon.Type: ApplicationFiled: November 2, 2009Publication date: May 5, 2011Applicant: XEROX CORPORATIONInventors: David J. Gervasi, Santokh Badesha, Alan R. Kuntz
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Patent number: 7932334Abstract: The present invention provides a resin which generates an acid by irradiation and is a salt of an organic cation and an anionic polymer wherein the anionic polymer has no carbon-carbon unsaturated bond. The present invention further provides a chemically amplified resist composition comprising the same.Type: GrantFiled: December 21, 2006Date of Patent: April 26, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuo Ando, Ichiki Takemoto, Isao Yoshida, Yukako Harada
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Publication number: 20110083726Abstract: To provide a lightweight and highly productive backsheet for a solar cell module, wherein a cured coating film layer of a fluoropolymer coating material formed on one or each side of a substrate sheet is free from problems such as cracking, fracturing, whitening and separation. A back sheet for a solar cell, comprising a substrate sheet and a cured coating film layer of a coating material formed on one side or each side of the substrate sheet, said coating material comprising a fluoropolymer (A) having repeating units based on a fluoroolefin (a), repeating units based on a crosslinkable group-containing monomer (b) and repeating units based on an alkyl group-containing monomer (c) wherein a C2-20 linear or branched alkyl group having no quaternary carbon atom, and a polymerizable unsaturated group are linked to each other by an ether bond or ester bond; and a solar cell module using such a backsheet.Type: ApplicationFiled: December 17, 2010Publication date: April 14, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takashi TAKAYANAGI, Sho MASUDA, Naoko SUMI
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Publication number: 20110086962Abstract: Disclosed is a method for producing an aqueous emulsion containing a fluorine-containing copolymer comprising, as copolymerizable monomers, (A) at least one of a perfluoroalkylalkyl acrylate and a corresponding methacrylate represented by the general formula: CnF2n+1CmH2mOCOCR?CH2, wherein R is hydrogen or methyl group, n is 4, 5, or 6, and m is 1, 2, 3, or 4; (B) benzyl acrylate or benzyl methacrylate; (C) a fluorine-free polymerizable monomer other than benzyl acrylate and benzyl methacrylate; and (D) a crosslinkable group-containing polymerizable monomer; the copolymer being produced by previously subjecting 10 to 80 wt. % of the total weight of component (A) and 0 to 60 wt.Type: ApplicationFiled: June 9, 2009Publication date: April 14, 2011Applicant: UNIMATEC CO., LTD.Inventors: Yoshiyama Kaneumi, Sumiko Mouri, Katsuyuki Sato
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Publication number: 20110086971Abstract: A fluoropolymer for masonry treatment produced from (A) a fluoromonomer which has been substituted in the ?-position by a X group and is represented by the formula (I): and (B) a monomer having a functional group reactive with active hydrogen. It imparts excellent water- and oil-repellency and unsusceptibility to fouling to masonries.Type: ApplicationFiled: December 20, 2010Publication date: April 14, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiko UEDA, Masahiko Maeda, Teruyuki Fukuda, Tetsuya Masutani
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Patent number: 7923497Abstract: Disclosed herein is a composition comprising a composition comprising a polymeric material; and a ceramic antiferroelectric particle. Disclosed herein too is a method of tuning a dielectric constant of a composition comprising subjecting a composition comprising a polymeric material and a ceramic antiferroelectric particle to a biasing electric field; and changing the dielectric constant of the composition. Disclosed herein too is a method comprising blending a polymeric material with ceramic antiferroelectric particles to form a composition. Disclosed herein too is a method comprising blending a polymeric material with ceramic antiferroelectric particles to form a composition; applying an electrical field to the composition; and reorienting the ceramic antiferroelectric particles.Type: GrantFiled: November 23, 2005Date of Patent: April 12, 2011Assignee: General Electric CompanyInventors: Daniel Qi Tan, Yang Cao, Patricia Chapman Irwin, Venkat S. Venkataramani
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Patent number: 7919557Abstract: An aqueous coating composition which has a low content of an organic solvent, whereby a burden on an environment is small; in which an increase of the molecular weight, gelation, etc. are suppressed; which performs excellent storage stability and provides a coating film having good water permeability/water which composition is obtained by dispersing a fluorocopolymer (A) obtained by solution polymerization in an aqueous medium, and which comprises a repeating unit (1) of fluoroolefin, a repeating unit (2) of a vinyl or allyl monomer, a repeating unit (3) of a vinyl or allyl monomer having a hydroxyl group bonded thereto, and a unit (4) of a vinyl or allyl monomer having a carboxylate group bonded thereto, and which comprises a fluorocopolymer (A) wherein a proportion of the repeating unit (4) is from 0.4 mol % to less than 4 mol % based on the total repeating units, and an aqueous medium, wherein an amount of an organic solvent contained in the composition is from 0 to 1 mass %.Type: GrantFiled: March 25, 2010Date of Patent: April 5, 2011Assignee: Asahi Glass Company, LimitedInventors: Naoko Sumi, Takashi Morizumi, Isao Kimura
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Publication number: 20110077349Abstract: A copolymer is provided which is capable of providing an article surface with sufficient oil repellency against oils having low surface tensions and which places little burden on the environment. Further, a method for producing such a copolymer, an oil repellent composition containing such a copolymer as an effective component, and an article which is excellent in oil repellency against oils having low surface tensions and which contains no material having high environmental burden, are provided. A copolymer comprising the following polymerized units (a), polymerized units (b), polymerized units (c1) and polymerized units (c2), and an oil repellent composition and article containing it.Type: ApplicationFiled: December 1, 2010Publication date: March 31, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventor: Taiki HOSHINO
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Publication number: 20110076487Abstract: An optical compensation film composition is disclosed herein having a polymer film and a substrate, wherein the polymer film has a positive birefringence greater than 0.005 throughout the wavelength range of 400 nm<?<800 nm, the film having been cast from a polymer solution comprising a solvent and a polymer having 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 hydrogen or a substituent on the styrenic ring.Type: ApplicationFiled: September 24, 2010Publication date: March 31, 2011Inventors: Xiaoliang Zheng, Dong Zhang, Jiaokai Jing, Frank Harris, Brian King, Ted Germroth, Thauming Kuo
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Patent number: 7915337Abstract: A surface-treating agent comprises a fluoropolymer comprising (A) repeating units derived from a fluorine-containing monomer of the formula: (B) repeating units derived from a monomer free from a fluorine atom, and (C) optionally, repeating units derived from a crosslinkable monomer. The surface treating agent is excellent in water repellency, oil repellency and unsusceptibility to fouling even when the side chains are C4 or lower fluoroalkyl groups.Type: GrantFiled: April 27, 2004Date of Patent: March 29, 2011Assignee: Daikin Industries, Ltd.Inventors: Ikuo Yamamoto, Tetsuya Masutani
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Publication number: 20110071248Abstract: To provide a copolymer which is capable of providing an article surface with a dynamic water repellency and which has extremely excellent washing durability of water repellency and oil repellency, while placing little burden on the environment; a method for its production; and a water/oil repellent composition. A copolymer comprising structural units of the monomer (a) and structural units of the monomer (b), wherein the total of the content of structural units based on the monomer (a) and the content of structural units based on the monomer (b) is at least 85 mass % of all structural units (100 mass %), and the molar ratio ((a)/(b)) of the content of structural units based on the monomer (a) to the content of structural units based on the monomer (b) is from 0.12 to 3; and a water/oil repellent composition containing such a copolymer.Type: ApplicationFiled: December 2, 2010Publication date: March 24, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kazunori Sugiyama, Toyomichi Shimada, Nobuyuki Otozawa, Yuuichi Oomori, Minako Shimada
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Patent number: 7910648Abstract: A protective coating applied to the underwater portion of a marine vessel operable to inhibit the growth of marine foulants. The coating comprises a polymer, a marine biocide, a preservative, and optionally an antimicrobial agent. In certain embodiments, the marine biocide, preservative, and optional antimicrobial agent are chemically bonded with the polymer thereby significantly reducing the ability of the biocide, preservative, and antimicrobial agent to leach from the coating into the surrounding environment.Type: GrantFiled: July 16, 2007Date of Patent: March 22, 2011Assignee: Reintjes Marine Surface Technologies, LLCInventor: Larry Weidman
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Publication number: 20110065857Abstract: There is provided a fluorine-containing polymer having a repeating unit of the general formula (2) and produced by homopolymerization or copolymerization with an other polymerizable double bond-containing monomer. In the formula, W represents a linking group; R1 each independently represents a perfluoroalkyl group; Q represents a unit structure formed by cleavage of a double bond of a polymerizable double bond-containing group; and M+ represents a hydrogen cation, a metal ion or a quaternary ammonium ion. There is also provided an antistatic agent using the above fluorine-containing polymer such that the antistatic agent can impart antistatic performance to an article stably over a long time and show excellent transparency.Type: ApplicationFiled: June 10, 2009Publication date: March 17, 2011Applicant: Central Glass Company, LimitedInventors: Yoshiharu Terui, Haruhiko Komoriya, Susumu Inoue, Takashi Kume
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Patent number: 7897674Abstract: Polymer electrolyte for an electrochemical generator based on at least a four branched polymer, at least a poly(vinylyldienefluoride), a poly(vinyldiene fluoro-co-hexafluoropropene copolymer), a poly(tetrafluoroethylene), a poly(ethylene-co-propylene-co-5-methylene-2-norbornene) or an ethylene propylene-diene copolymer, a polyol, a poly(methylmethacrylate, a poly(acrylonitrile), SiO2Al2O3, or nano TiO2 non coated or coated with an organic material. This electrolyte allows to prepare electrolytic compositions that can be used in high performance electrochemical devices.Type: GrantFiled: January 15, 2003Date of Patent: March 1, 2011Assignee: Hydro-QuebecInventors: Karim Zaghib, Michel Perrier, Abdelbast Guerfi, Elisabeth Dupuis, Patrick Charest, Francois Allaire, Michel Armand
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Publication number: 20110045270Abstract: A composition comprises a polymer having a first pendant group selected from at least one perfluorinated ether group or perfluoroalkanesulfonamido group, a second pendant group comprising an ammonium group, wherein the second pendant group is free of silicon, and a third pendant group comprising an ammonium group and a reactive silicon-containing group. The polymer and composition are useful for protecting a substrate, for example, to render the substrate oil repellent, water repellent, or both, or to provide stain repellency to the substrate.Type: ApplicationFiled: November 26, 2008Publication date: February 24, 2011Inventors: Rudolf J. Dams, Thomas P. Klun, Inge Nuyts
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Publication number: 20110046293Abstract: A light diffusion film is provided and includes: a transparent plastic film; a light diffusion layer formed from a curable composition containing a leveling agent ant particles having an average particle diameter of 1.0 ?m to 15 ?m, the light diffusion layer having an average thickness of 1.0 ?m to 40 ?m. The light diffusion film has a haze of 3% or more and point defects, which has a shape capable of surrounding a circle having a diameter of 100 ?m in the average number of 2.0/10 m2 or less.Type: ApplicationFiled: October 27, 2010Publication date: February 24, 2011Applicant: FUJIFILM CorporationInventor: Kenichi Fukuda
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Publication number: 20110045271Abstract: A polymer is provided comprising a first pendant group selected from at least one of a perfluorinated ether group or a perfluoroalkanesulfonamido group, a second pendant group comprising an ammonium group, wherein the second pendant group is free of silicon, and a third pendant group comprising an ammonium group and a reactive siliconcontaining group. A composition comprising the polymer is provided. The polymer and composition are useful for protecting a substrate, for example, to render the substrate oil repellent, water repellent, or both, or to provide stain repellency to the substrate.Type: ApplicationFiled: November 26, 2008Publication date: February 24, 2011Inventors: Rudolf J. Dams, Suresh S. Iyer, Chetan P. Jariwala, Thomas P. Klun, Inge Nuyts
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Publication number: 20110040024Abstract: A nanoparticle includes a chain oligomer section having a hydrophilic group and fluoroalkyl groups respectively at its opposite terminals, a three-dimensional silica network section, and an organic chain having fluorine or silicon, and is represented by the following formula (2): where R? is independent H or independent alkyl group; X is the hydrophilic group and is selected from the group consisting of an OH group, an NCO group, an NH2 group, an NHR group (where R is alkyl group) and a COY group (where Y is a hydrophilic group); RF is the fluoroalkyl group having a carbon number of 2 to 10 and a molecular weight of 119 to 1000; 3D-SN is the three-dimensional silica network section; B is selected from the group consisting of an O, O?C—O, NH—C?O and NR—C?O (where R is alkyl group); E is O, O?C—O, NH—C?O or NR—C?O (where R is alkyl group); L is (CH2O)l—[Si(CH3)2O]k—(CH2O)l-?, (CF2)j-? or (CF2O)h-? where ? is COY group (where Y is hydrophilic group), NCO group, NH2 group, NHR group (R is alkyl group), R grouType: ApplicationFiled: October 22, 2010Publication date: February 17, 2011Inventors: Hideaki YAEGASHI, Shoko Kano, Masahiko Yamanaka, Kentarou Watanabe, Hiroshi Yokohama, Hideo Sawada
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Patent number: 7884148Abstract: The present invention provides a resin composition containing a filler poor in affinity for fluororesins as uniformly dispersed therein and a method of producing such resin composition and, further, a resin composition containing, as fillers, a nucleating agent for foaming and suited for producing foamed moldings with fine foam cells uniformly distributed therein and a method of producing such resin composition as well as a foamed molding formed from either of such resin compositions. The present invention is related to a resin composition comprising a fluororesin (A) and a filler (X) low in affinity for said fluororesin (A), wherein the filler (X) has a d99 value of not more than 15 ?m.Type: GrantFiled: March 5, 2007Date of Patent: February 8, 2011Assignee: Daikin Industries, Ltd.Inventors: Keizou Shiotsuki, Eiji Fujita, Tatsuya Higuchi, Shouji Fukuoka, Takahiro Taira
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Patent number: 7884145Abstract: A process for producing filler-containing polytetrafluoroethylene granules by an underwater agitation granulation method, whereby filler-containing polytetrafluoroethylene granules excellent in flowability can be obtained with little detachment of the filler and it is possible to prevent discharge of a polytetrafluoroethylene emulsion into waste liquid, the process characterized in that in a stage of granulating a mixture of polytetrafluoroethylene powder and a filler by agitation in water in the presence of a liquid organic substance hardly soluble in water, a polytetrafluoroethylene emulsion and a coagulant are added to coagulate the polytetrafluoroethylene emulsion as a surface layer of the filler-containing polytetrafluoroethylene granules.Type: GrantFiled: September 7, 2007Date of Patent: February 8, 2011Assignee: Asahi Glass Company, LimitedInventors: Jun Hoshikawa, Masumi Nomura, Noriharu Tate
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Publication number: 20110028059Abstract: A water- and oil-repellent agent is an aqueous emulsion containing: (I) a fluorine-containing copolymer, (II) a surfactant, and (III) an aqueous medium. The fluorine-containing copolymer contains repeating units derived from (a) a fluorine-containing monomer containing a fluoroalkyl group having 1 to 6 carbon atoms and (b) a fluorine-free monomer selected from the group consisting of vinyl halide and vinylidene halide, wherein the fluorine-containing copolymer has a melt viscosity of 1,000 to 100,000 cP at a temperature of 100° C. under a load of 25 kgf/cm2.Type: ApplicationFiled: March 27, 2009Publication date: February 3, 2011Inventors: Hisako Nakamura, Mitsuhiro Usugaya, Takashi Enomoto
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Publication number: 20110027593Abstract: Disclosed is a fluorine-containing copolymer having sufficient stability in water, which is capable of providing paper with sufficient oil resistance. The fluorine-containing polymer contains, as essential components, (a) a fluorine-containing monomer represented by general formula (I) CH2?C(—X)—C(?O)—Y—[—(CH2)m—Z—]p—(CH2)n—Rf (wherein X represents a hydrogen atom; Y represents —O— or —NH—; Z represents a direct bond, —S— or —SO2—; Rf represents a fluoroalkyl group having 1-6 carbon atoms; m is a number of 1-10; n is a number of 0-10; and p is 0 or 1) and (b) an alkoxy group-containing monomer represented by general formula (II) CH2?C(X?)—C(?O)—O—(RO)q—H (wherein X? represents a hydrogen atom or a methyl group; R represents an alkylene group having 2-4 carbon atoms wherein a part or all of hydrogen atoms may be substituted by a hydroxyl group; and q represent an integer of 1-50). The fluorine-containing polymer does not contain a monomer having an amino group.Type: ApplicationFiled: March 27, 2009Publication date: February 3, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Michio Matsuda, Tetsuya Uehara, Mitsuhiro Usugaya, Ikuo Yamamoto, Takashi Enomoto, Kayo Kusumi
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Publication number: 20110009555Abstract: A fluorine-containing polymer comprising a fluoroalkyl alcohol (meth)acrylic acid derivative represented by a general formula, CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 (in the formula, R is a hydrogen atom or a methyl group, n is an integer of 1 to 6, preferably 2 to 4, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3) containing in 5 to 100 wt % as a polymerization unit. A organic solvent solution or aqueous dispersion of the fluorine-containing polymer is effectively used as, for example, a surface-modifying agent such as a water- and oil-repellent or an oil barrier.Type: ApplicationFiled: July 16, 2008Publication date: January 13, 2011Applicant: UNIMATEC CO., LTD.Inventors: Satoshi Kurihara, Seiichiro Murata, Katsuyuki Sato, Masayosi Horiuti, Sumiko Mouri, Hideki Abe, Ji-Shan Jin
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Publication number: 20110008613Abstract: A flake pigment according to the present invention includes a flake particle, a single-layer or multiple-layer coat covering a surface of the flake particle, and a fine particle. An outermost layer of the coat includes a copolymer including one or more type of first bond unit originating from a fluoric polymerizable monomer having fluorine and one or more type of second bond unit originating from a polymerizable monomer having phosphate group. The fine particle is fixed with the outermost layer being interposed and has a characteristic to provide triboelectrification characteristics to the flake pigment.Type: ApplicationFiled: March 5, 2009Publication date: January 13, 2011Inventors: Yasushi Takano, Taro Morimitsu, Haruhisa Kaiju
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Patent number: 7868083Abstract: A material comprising aerogel particles and a polytetrafluoroethylene (PTFE) binder is formed having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. The material is moldable or formable, having little or no shedding of filler particles, and may be formed into structures such as tapes or composites, for example, by bonding the material between two outer layers. Advantageously, composites may be flexed, stretched, or bent without significant dusting or loss of insulating properties.Type: GrantFiled: January 11, 2008Date of Patent: January 11, 2011Assignee: Gore Enterprise Holdings, Inc.Inventors: Cedomila Ristic-Lehmann, Brian Farnworth, Anit Dutta, Bradley E. Reis
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Patent number: 7855254Abstract: The invention pertains to a multi-phase thermoplastic fluoropolymer composition, comprising a thermoplastic fluoropolymer and discrete domains of melt-processable perfluoropolymer, to the articles therefrom and to a process for manufacturing thermoplastic fluoropolymer compositions. The multi-phase thermoplastic fluoropolymer composition comprises: —at least one thermoplastic fluoropolymer (A); and —from 0.1 to 10% by weight of (A) of at least one melt-processible perfluoropolymer (B), and is characterized in that the polymer (B) is present in the composition in phase-separated domains in a continuous phase mainly comprising (A), at least 75% by volume of said domains having maximal dimension not exceeding 1 ?m. The process of the invention comprises mixing: (i) a thermoplastic fluoropolymer (A); (ii) a melt-processible perfluoropolymer (B) under the form of particles having an average primary particle size not exceeding 300 nm; (iii) and optionally other additives or filling materials.Type: GrantFiled: April 25, 2006Date of Patent: December 21, 2010Assignee: Solvay Solexis S.p.A.Inventors: Julio A. Abusleme, Claudia Manzoni, Giambattista Besana
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Publication number: 20100317789Abstract: The present invention describes polymer compositions comprising fluoroelastomer and expanded perlite and uses thereof.Type: ApplicationFiled: December 28, 2007Publication date: December 16, 2010Inventors: Michael Greene, Roger Norman Rothon, Nigel Julian Keith Danvers, Qingchun Hu
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Patent number: 7851573Abstract: To provide an aqueous polytetrafluoroethylene (PTFE) emulsion which does not substantially contain ammonium perfluorooctanoate, and which is obtained by emulsion polymerization. Further, to provide a PTFE fine powder which is obtained from the aqueous PTFE emulsion and is excellent in a paste extrusion processability, and a porous material. An aqueous polytetrafluoroethylene emulsion obtained by carrying out emulsion polymerization of tetrafluoroethylene alone or together with another copolymerizable monomer in an aqueous medium, wherein a fluorinated emulsifier of the formula (1): CF2CF2(O)mCF2CF2OCF2COOA wherein X is a hydrogen atom or a fluorine atom, A is a hydrogen atom, an alkali metal or NH4, and m is an integer of 0 or i, is used in an amount of from 1,500 to 20,000 ppm, based on the final yield of polytetrafluoroethylene.Type: GrantFiled: April 17, 2008Date of Patent: December 14, 2010Assignee: Asahi Glass Company, LimitedInventors: Shinya Higuchi, Hiroki Kamiya, Jun Hoshikawa, Yasuhiko Matsuoka
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Patent number: 7847001Abstract: 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: GrantFiled: December 2, 2009Date of Patent: December 7, 2010Assignee: Daikin Industries, Ltd.Inventors: Takuya Arase, Masayoshi Tatemoto
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Patent number: 7842389Abstract: There is provided a curable surface modifier comprising a resin which is soluble in a general purpose solvent and comprises a fluorine-containing ethylenic polymer containing, in at least a part of its side chain, a moiety A having a long polyfluoropolyether chain and/or a moiety B having a self-crosslinkable functional group, in which the resin contains both of the moieties A and B. The curable surface modifier improves properties of surfaces of various coating films, especially antireflection films, such as surface sliding property (decrease in a friction coefficient), surface hardness, abrasion resistance, chemical resistance and stain removability by wiping, thus being capable of imparting modified properties to the surfaces of original coating films.Type: GrantFiled: May 26, 2004Date of Patent: November 30, 2010Assignee: Daikin Industries, Ltd.Inventors: Mihoko Ohashi, Kazuyuki Sato, Takayuki Araki
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Patent number: 7842390Abstract: Chain end functionalized fluoropolymers are disclosed exhibiting good chemical reactivity high breakdown electric field (E>100 MV/m) and high dielectric constants (i.e., ?>10). The polymers can be prepared by functional initiators and from a variety of fluoromonomers including vinylidene difluoride together with one or more additional monomers. The polymers can be combined with other dielectric materials to form composites having uniform composition and morphology.Type: GrantFiled: October 3, 2006Date of Patent: November 30, 2010Assignees: The Penn State Research Foundation, Daikin America, Inc.Inventors: Tze-Chiang Chung, Zhicheng Zhang, Shangtao Chen, Katsuyoshi Kubo, Koji Kigawa
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Patent number: 7842626Abstract: Partially fluorinated amino acid derivatives are provided that are useful as organogelators and surface treatment materials to provide oil- and water- repellency properties to substrates. Also provided are composite materials comprising a porous support and a porous nanoweb. The porous nanoweb contains fibrous structures of about 10 nm to about 1000 nm effective average fiber diameter.Type: GrantFiled: November 13, 2006Date of Patent: November 30, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Erick Jose Acosta, Anilkumar Raghavanpillai, Sheng Peng, Stefan Reinartz
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Patent number: 7842765Abstract: The present invention provides a vinyl fluoride copolymer comprising: about 40 to about 90 mole % of repeat units derived from vinyl fluoride; and about 10 to about 60 mole % of repeat units derived from monomer selected from the group consisting of (a) and (b) below and mixtures thereof, with the proviso that about 0.1 mole % to 50 mole % of repeat units in the copolymer are derived from monomer selected from (b): (a) monomer selected from the group consisting of, tetrafluoroethylene, trifluoroethylene, chlorotrifluoroethylene and mixtures thereof; and (b) vinyl monomer containing at least one functional group selected from the group consisting of hydroxyls, thiols, carbonyls, carboxylic acids, carboxylic esters, acid anhydrides, sulfonyls, sulfonic acids, sulfonic esters, phosphoric acids, phosphoric esters, boric acids, boric esters, epoxies, isocyanates, thiocyanates, amines, amides, nitriles and halogen selected from bromide and iodide.Type: GrantFiled: December 21, 2007Date of Patent: November 30, 2010Assignees: E. I. du Pont de Nemours and Company, Dupont-Mitsui Fluorochemicals Co LtdInventors: Ronald Earl Uschold, Jian Wang, Masahiro Yamamoto
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Publication number: 20100297489Abstract: An electrochemical cell may have a PVDF microporous membrane that may be adhesively bonded to electrodes. The adhesive may be a mixture of a solvent and non-solvent that may cause the PVDF membrane to become tacky and adhere to an electrode without collapsing. An adhesively bonded cell may be constructed using multiple layers of adhesively bonded membranes and electrodes. In some embodiments, the adhesive solution may be used as a sizing to prepare electrodes for bonding.Type: ApplicationFiled: May 20, 2010Publication date: November 25, 2010Applicant: POROUS POWER TECHNOLGIES, LLC.Inventor: Kirby W. Beard