From Fluorine-containing Monomer Patents (Class 524/544)
  • Patent number: 7598312
    Abstract: A process for preparing a halogenated polymer in a medium comprising liquid or supercritical carbon dioxide, comprising a step involving the radical polymerization of at least one halogenated monomer and at least one step involving cross-flow filtration; and a cross-flow filtration device.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: October 6, 2009
    Assignee: Solvay (Société Anonyme)
    Inventors: Jean-Marie Blaude, Roland Martin
  • Publication number: 20090247691
    Abstract: 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: Application
    Filed: December 10, 2008
    Publication date: October 1, 2009
    Applicant: UNIMATEC CO., LTD.
    Inventors: Jun Kanega, Ji-Shan Jin, Katsumi Suzuki, Takashi Enokida, Keisuke Kokin
  • Publication number: 20090239993
    Abstract: To provide 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 resistance. An aqueous coating composition which is a composition obtained by dispersing a fluorocopolymer (A) obtained by a solution polymerization method, in an aqueous medium, and which comprises a repeating unit (1) of fluoroolefin, a repeating unit (2) of a vinyl monomer or an allyl monomer, a repeating unit (3) of a vinyl monomer having a hydroxyl group bonded thereto or of an allyl monomer having a hydroxyl group bonded thereto, and a unit (4) of a vinyl monomer having a carboxylate group bonded thereto or of an allyl monomer, and which comprises a fluorocopolymer (A) wherein a proportion of the repeating unit (4) is from 0.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 24, 2009
    Applicant: Asahi Glass Company, Limited
    Inventors: Naoko SUMI, Takashi MORIZUMI, Isao KIMURA
  • Patent number: 7592407
    Abstract: A polymerizable fluorinated compound having formula (2a) or (2b) wherein R1 and R2 are H or C1-C20 alkyl or fluoroalkyl, R3 is H, F or C1-C4 alkyl or fluoroalkyl, and R is H or a protective group is polymerized into a fluorinated polymer which is used as a base polymer to formulate a resist composition having transparency to laser light of wavelength?300 nm, alkali development amenability, and dry etch resistance.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: September 22, 2009
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuji Harada, Jun Hatakeyama, Takeru Watanabe, Takeshi Kinsho
  • Patent number: 7589140
    Abstract: Provided are fluoropolymer blends comprising a fluoropolymer having a major amount of fluorothermoplastic, a bubble suppressing metal compound, a base and a phase transfer catalyst. Also provided are layered articles comprising a first layer having the described fluoropolymer blend and methods for making the layered articles.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: September 15, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Blake Eldon Chandler, Naiyong Jing
  • Publication number: 20090227727
    Abstract: The present invention provides a method of producing an elastomeric fluoropolymer excellent in productivity and crosslinkability. The present invention is a method of producing an elastomeric fluoropolymer comprising polymerizing a fluoromonomer in an aqueous medium in the presence of a vinyl group-containing fluorinated emulsifier and a chain transfer agent, wherein the vinyl group-containing fluorinated emulsifier is a compound having a radical polymerizable unsaturated bond and a hydrophilic group within the molecule thereof.
    Type: Application
    Filed: May 11, 2009
    Publication date: September 10, 2009
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Nobuhiko TSUDA, Yoshiki TANAKA, Shigeru MORITA, Yasuhiko SAWADA, Tetsuo SHIMIZU
  • Patent number: 7576164
    Abstract: 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: Grant
    Filed: February 27, 2007
    Date of Patent: August 18, 2009
    Assignee: Du Pont Performance Elastomers LLC.
    Inventors: John G. Bauerle, Christopher J. Bish, Theresa M. Dobel, Phan L. Tang
  • Publication number: 20090202782
    Abstract: An article includes a scratch resistant non-stick finish adhered to a substrate. The scratch resistant non-stick finish includes a primer layer, a midcoat layer, and a topcoat layer. The primer layer is adhered to the substrate and includes a first polymer binder and large ceramic particles, the midcoat layer includes a first fluoropolymer composition and inorganic whiskers, and the topcoat layer includes a second fluoropolymer composition. A liquid coating composition for a non-stick finish includes a fluoropolymer, a polymer binder, and inorganic whiskers. A composition of the inorganic whiskers is in a range of from about 1 to 40 percent by weight of the liquid coating composition.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 13, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Nelson Leonardo Giani Cardoso, Philippe Andre Fernand Thomas
  • Publication number: 20090192259
    Abstract: Use in LAN cable applications, as materials for the coating of the primary cable and for the external jacket, of TFE thermoprocessable perfluoropolymers comprising perfluoroalkylvinylethers in the following amounts, expressed as percent by weight on the total of the monomers: a) 0-5.5% of perfluoromethylvinylether (PMVE); b) 0.4-4.5% of perfluoroethylvinylether (PEVE) and/or perfluoropropylvinylether (PPVE); when a) is present, then a)+b) ranges from 1.5% to 5.5% by weight on the total of the monomers; optionally c) 0-6% of hexafluoropropene (HFP); the TFE amount being the complement to 100% by weight.
    Type: Application
    Filed: February 20, 2007
    Publication date: July 30, 2009
    Applicant: Solvay Solexis S.p.A
    Inventors: Pasqua Colaianna, Giulio Brinati, Aldo Sanguineti
  • Patent number: 7566762
    Abstract: The present invention relates to a process for preparing a fluoropolymer containing at least one kind of fluoroolefin, which comprises carrying out polymerization in the presence of a surfactant represented by the formula (1): (wherein R1 and R2 may be the same or different respectively, and represent an alkyl group or an alkenyl group, R3 is a hydrogen atom, an alkyl group or an alkenyl group, the total carbon number of R1 to R3 is 2 to 25, L? is a group represented by —SO3?, —OSO3?, —PO3?, —OPO3? or —COO?, and M+ is a monovalent cation). Thereby, polymerization can be carried out with excellent production efficiency in the presence of a small amount of a surfactant, and a fluoropolymer can be prepared without lowering various physical properties such as water resistance by the surfactant.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: July 28, 2009
    Assignee: Daikin Industries, Ltd.
    Inventors: Masao Otsuka, Satoshi Tokuno, Katsuya Nakai
  • Patent number: 7560501
    Abstract: An encapsulant composition. The encapsulant composition includes a resin material consisting of epoxy or cyanate ester resins, from about 1.0% by weight to about 5% by weight of the composition of a flexibilizing agent including a flexibilizer containing functional groups capable of reaction with the epoxy or cyanate ester resin during thermally induced curing, a filler material including substantially spherical or spheroidal particles such that each particle has a diameter less than about 41 microns, and a thermoplastic other than the flexibilizer. The thermoplastic is separated from the cured epoxy or cyanate ester resin. The thermoplastic includes a poly(arylene)ether. The flexibilizer includes bis(2,3-epoxy-2-methylpropyl)ether.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: July 14, 2009
    Assignee: International Business Machines Corporation
    Inventor: Konstantinos I. Papathomas
  • Patent number: 7560517
    Abstract: 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: Grant
    Filed: November 16, 2005
    Date of Patent: July 14, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Michael Jurgens, Harald Kaspar, Kai Helmut Lochhaas, Werner Schwertfeger
  • Patent number: 7560506
    Abstract: A water- and oil-repellent composition consisting of (A) a fluorine-containing copolymer comprising at least 20% by weight (based on the copolymer) of (a1) units derived from a polymerizable monomer having a C1-6 polyfluoroalkyl group or a polyfluoroalkenyl group, (B) a surfactant component comprising as the essential components (b1) a nonionic surfactant having an HLB value of 12 or below and (b2) a nonionic surfactant having an HLB value of 15 or above, and (C) an aqueous medium substantially consisting of water. This composition is free from operationally or environmentally undesirable solvents and superior to conventional ones in stabilities such as mechanical stability, chemical stability, and long-term shelf stability.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: July 14, 2009
    Assignee: Daikin Industries, Ltd.
    Inventor: Masato Kashiwagi
  • Patent number: 7553894
    Abstract: An elastomeric composition that includes a fluorelastomer and an epichlorohydrin. The elastomeric composition can be formed into cold-shrink articles that are resistant to tearing at elevated temperatures.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: June 30, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Pradip K. Bandyopadhyay, Christopher J. Evoniuk, Krishnakant P. Vora
  • Patent number: 7550530
    Abstract: An aqueous fluoroelastomer curable composition including two liquids of a main material fluoroelastomer aqueous dispersion (I) and a fluoroelastomer-curing agent aqueous solution (II), wherein the above main material fluoroelastomer aqueous dispersion (I) is an aqueous dispersion having a pH of 6.5 to 8.5, comprising a fluoroelastomer (A), a dispersant (B), an acid acceptor (C) and a salt (D) composed of an acid with a pKa of 3 to 7 and a base with a pKa of 8 to 12, and the above fluoroelastomer-curing agent aqueous solution (II) is an aqueous solution including a fluoroelastomer-curing agent.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: June 23, 2009
    Assignee: Daikin Industries Ltd.
    Inventors: Nobuyuki Tomihashi, Koichiro Ogita, Kiyotaro Terasaka
  • Patent number: 7544753
    Abstract: 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: Grant
    Filed: January 3, 2007
    Date of Patent: June 9, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Junpei Nomura, Hiroshi Funaki, Hiroki Kamiya
  • Patent number: 7534825
    Abstract: Dispersions of fluorinated polymers substantially free from fluorinated surfactants, having high stability to shear combined with high stability to segregation, said dispersions comprising one or more anionic surfactants having the following general formula (1): Y?-(P1)n-CH(Y)-(P2)n?-Y???(1) wherein: Y, Y? and Y? are anionic or nonionic groups, with the proviso that at least one of Y, Y? or Y? is an anionic group and at least one of the remaining of Y, Y? or Y? is a nonionic group; p1 and p2, equal or different, are linear or branched alkylene groups, optionally containing one or more unsaturations, having a number of carbon atoms from 1 to 10, preferably from 1 to 6; n and n? equal or different, are zero or 1.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: May 19, 2009
    Assignee: Solvay Solexis S.p.A.
    Inventors: Marco Malvasi, Valeri Kapeliouchko
  • Patent number: 7528184
    Abstract: A perfluoroelastomer composition comprises a perfluoroelastomer (e.g., tetrafluoroethylene/perfluoro(methyl vinyl ether) copolymer), an organic peroxide (e.g., 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane and a scorch retarder (e.g., o-phenylphenol), and the perfluoroelastomer composition is excellent in processability and unlikely to scorch. Furthermore, a perfluoro rubber molded article obtained by thermal crosslinking of the perfluoroelastomer composition is excellent in rubber physical properties such as tensile strength and elongation at break and in a compression set property.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: May 5, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroshi Funaki, Makoto Honda, Masayuki Saito, Hiroki Kamiya
  • Patent number: 7514483
    Abstract: An aqueous dispersion of polytetrafluoroethylene (PTFE) comprising from 55 to 70 mass % of PTFE fine particles having an average particle diameter of from 0.1 to 0.5 ?m, from 0.0001 to 0.02 mass %, based on PTFE, of a specific C8 fluorine-containing carboxylic acid salt (APFO) such as ammonium perfluorooctanoate, from 1 to 20 mass %, based on PTFE, of a specific nonionic surfactant and from 0.01 to 0.3 mass %, based on PTFE, of a specific C5-7 fluorine-containing carboxylic acid salt such as ammonium perfluorohexanoate. The aqueous dispersion of PTFE has excellent properties which can form crack-resistant coatings which do not undergo coloration during baking or form problematic ionic impurities by improving the friction stability of aqueous PTFE dispersions even at APFO concentrations without viscosity increase.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: April 7, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Jun Hoshikawa, Shinya Higuchi, Yasuhiko Matsuoka
  • Patent number: 7514484
    Abstract: To obtain a high concentration aqueous PTFE dispersion containing PTFE at a concentration of from 60 to 75 mass % by dissolving from 0.001 to 0.1 mass %, based on the mass of PTFE, of a specific carboxylic acid salt such as ammonium laurate in a low concentration aqueous dispersion of polytetrafluoroethylene (PTFE) comprising from 1 to 40 mass % of PTFE fine particles, from 0.0001 to 0.02 mass %, based on the mass of PTFE, of a specific fluorine-containing carboxylic acid type emulsifier (for example, ammonium perfluorooctanoate), and from 1 to 20 mass %, based on the mass of PTFE, of a specific nonionic surfactant, and then concentrating the low concentration aqueous dispersion of PTFE.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: April 7, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Jun Hoshikawa, Shinya Higuchi, Yasuhiko Matsuoka
  • Publication number: 20090080073
    Abstract: An antireflection film comprising a transparent support and a low-refractivity layer as an outermost layer, the low-refractivity layer being formed by a specific fluoropolymer-containing composition, and a polarizing plate and an image display device comprising the antireflection film.
    Type: Application
    Filed: March 20, 2006
    Publication date: March 26, 2009
    Applicant: Fujifilm Corporation
    Inventors: Kiyoshi Irita, Masaki Noro, Hiroyuki Yoneyama
  • Publication number: 20090053519
    Abstract: An adhesive composition includes a base polymer, the base polymer including a copolymer having at least one (meth)acrylic ester with a halogen element and at least one (meth)acrylate in a copolymeric unit, and an antistatic agent, the antistatic agent including an ionic compound.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 26, 2009
    Inventors: Hiroshi Ogawa, Tatsuhiro Suwa, Cheong Hun Song
  • Publication number: 20090053462
    Abstract: The invention provides a polymer, useful as a surfactant and textile reagent, comprising: (a) monomeric units containing a lipophobic group, said monomeric units comprising a compound of Formula: (I); wherein: Z is a spacer; R is H or methyl; Rf is a lipophobic group, R2 and R3 are each independently H or halo; X is —O— or a covalent bond; and o is 0 or 1 or 2; (b) optionally but preferably, monomeric units containing an attachment group; and (c) optionally but preferably, monomeric units containing a hydrophobic group.
    Type: Application
    Filed: April 21, 2006
    Publication date: February 26, 2009
    Inventors: Ji Guo, Joseph M. DeSimone, Paul R. Resnick
  • Patent number: 7495049
    Abstract: There is provided a composition of melt processible fluoropolymer and inorganic fine particles of average particle size 1 ?m or less dispersed in said fluoropolymer, said composition being obtained by melt-mixing said melt processible fluoropolymer and aggregated said inorganic fine particles, said aggregated inorganic fine particles being obtained by drying a mixed solution of inorganic fine particles and an inorganic salt to obtain a solid material, removing the inorganic salt from this solid material using a solvent, and then drying at a temperature where surface fusion between the inorganic fine particles does not occur, whereby said aggregates are the result of the mutual cohesive force of the inorganic fine particles, which has good physical properties and dimensional stability compared to the melt processible fluoropolymer alone.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: February 24, 2009
    Assignee: Du Pont - Mitsoi Fluorochemicals Co, Ltd.
    Inventor: Jeong Chang Lee
  • Patent number: 7495046
    Abstract: The present invention provides a crosslinkable elastomer composition, in which generation of HF under high temperature conditions is reduced, the decrease in weight to both NF3 plasma treatment and O3 treatment in the semiconductor manufacturing process is small and generation of foreign substances (particles) in these treatments is suppressed significantly. Specifically, the present invention relates to a crosslinkable elastomer composition comprising a crosslinkable elastomer and a filler having a specific surface area of at least 0.5 m2/g and containing a synthetic polymer having a thermally and chemically stable aromatic ring in the main chain, a crosslinkable elastomer composition comprising a crosslinkable elastomer and nonoxide ceramics and a crosslinkable elastomer composition wherein the decrease in weight by NF3 plasma irradiation is at most 0.20%.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: February 24, 2009
    Assignee: Daikin Industries, Ltd.
    Inventors: Hirofumi Nishibayashi, Takafumi Yamato, Katsuhiko Higashino, Hiroyuki Tanaka, Tsuyoshi Noguchi
  • Patent number: 7488781
    Abstract: Crosslinkable perfluoroelastomer compositions having low metal content and low compression set when crosslinked, and processes for producing the same, are provided. Compositions comprising terpolymers of TFE, PAVE, and CNVE having a metal content of less than 3000 ppb may be formed into high purity transparent perfluoroelastomer parts.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: February 10, 2009
    Assignee: Gore Enterprise Holdings, Inc.
    Inventors: Ping Xu, Jack Hegenbarth, Xin Kang Chen, Jian Hou
  • Publication number: 20090029176
    Abstract: In order to provide a novel heat shield sheet allowing a high reflectance with respect to light beam in the near-infrared region and a high heat-shield effect to be obtained, a heat shield sheet is proposed, comprising a resin composition containing a resin having a refractive index of less than 1.52 and a fine powdery filler having a refractive index of 1.60 or greater, and having an average reflectance of 80% or greater at wavelengths from 810 nm to 2,100 nm.
    Type: Application
    Filed: February 1, 2007
    Publication date: January 29, 2009
    Applicant: MITSUBISHI PLASTICS, INC
    Inventors: Miki Nishida, Jun Takagi, Takashi Hiruma, Takayuki Watanabe, Kazunari Katsuhara
  • Publication number: 20090028695
    Abstract: A bushing-like part made from a fluoropolymer and circumferentially oriented continuous high tensile modulus fibers is useful as a part for pumps and compressors and other similar types of apparatus. These parts may be useful at high temperatures and/or very corrosive environments, often lengthen the time between required maintenance checks, and usually perform better than metal bushings under nonstandard operating conditions.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Inventors: Thomas P. Gannett, Joel D. Citron
  • Publication number: 20090023856
    Abstract: The invention provides an adhesive composition including a specific phosphate group-containing monomer (a) having a fluorocarbon group, and a solvent (b). An adhesive composition that is suitably used in the fields of medical care, electronic industry, precision machinery industry, jewel industry and so on, exhibits high bond strength and high adhesive durability and is minimally varied in bond strength is provided. The adhesive composition of this invention exhibits high adhesive durability and high coloring resistance on dental restorative materials such as ceramics, a composite resin cured substance, porcelain and a metal, and in particular, on a novel dental restorative material such as hybrid ceramics or a metal oxide-based high strength ceramics, and therefore it is suitably used in the dental field.
    Type: Application
    Filed: April 13, 2006
    Publication date: January 22, 2009
    Applicant: Kuraray Medical Inc.
    Inventors: Kazumitsu Nakatsuka, Naoki Nishigaki, Mitsunobu Kawashima
  • Patent number: 7473658
    Abstract: Disclosed are partially fluorinated amino acid derivatives useful as organogelators and surface treatment materials to provide oil- and water-repellency properties to substrates. Also disclosed 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 as determined with electron microscopy.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: January 6, 2009
    Assignee: E. I. du Pont Nemours and Company
    Inventors: Erick Jose Acosta, Anilkumar Raghavanpillai, Sheng Peng, Stefan Reinartz, Sunti Moudgil
  • Patent number: 7470741
    Abstract: The present invention provides a fluorochemical composition comprising: (a) one or more fluorochemical oligomers derivable from a free radical polymerization of one or more fluorinated monomers and optionally one or more non-fluorinated monomers in the presence of a chain transfer agent, said fluorochemical oligomer being free of acid groups and comprising one or more groups of the formula: -M1(R)q(Y)p?q?1??(I) wherein M1 is selected from the group consisting of Si, Ti, Zr, B, Al, Ge, V, Pb, Sn and Zn, R represents a non-hydrolysable group, Y represents a hydrolysable group, q is 0, 1 or 2, p equals the valence of M1 and is 3 or 4 and p?q?1 is at least 1; (b) one or more non-fluorinated compounds of an element M2 selected from the group consisting of Si, Ti, Zr, B, Al, Ge, V, Pb, Sn and Zn and having at least two hydrolysable groups per molecule in an amount sufficient to form a polycondensation product upon reaction with said fluorochemical oligomer (a); (c) water; and (d) an organic solvent in an amount
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: December 30, 2008
    Assignee: 3M Innovative Properties Company
    Inventor: Rudolf J. Dams
  • Patent number: 7468403
    Abstract: The present invention provides a method of purifying an aqueous fluoropolymer emulsion by which fluorine-containing surfactants can be removed without lowering the dispersibility of the aqueous fluoropolymer dispersions. The present invention provides a method of purifying an aqueous fluoropolymer emulsion comprising; purifying an aqueous fluoropolymer emulsion by a specific technique of concentration wherein the aqueous fluoropolymer emulsion comprises a fluoropolymer and a fluorine-containing surfactant, said specific technique of concentration comprises concentration by phase separation, electric concentration and/or ion exchange concentration, and said concentration by phase separation, electric concentration and/or ion exchange concentration is carried out for removing the fluorine-containing surfactant.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: December 23, 2008
    Assignee: Daikin Industries, Ltd.
    Inventors: Yasukazu Nakatani, Kenji Ichikawa
  • Patent number: 7462667
    Abstract: The present invention provides an aqueous coating composition comprising (i) particles of a non-melt processible polymer of tetrafluoroethylene and (ii) a non-fluorinated polymer selected from the group consisting of a polysulfone, a polyamide, a polyimide, a polyamide-imide, a polybismaleimide and mixtures thereof, wherein said particles are core-shell particles whereby the shell comprises a copolymer of tetrafluoroethylene and a partially fluorinated or non-fluorinated comonomer. The aqueous coating composition may be used for providing a primer coating on a substrate such as a metal or glass substrate. Such primer coating may provide good or excellent non-stick coatings combined with good or excellent scratch and wear resistance of the coating. Also, such primer coating may provide for good to excellent PTFE coatings that can resist hot salt water. The aqueous coating composition may also be used to provide other coating layers of a multi-layer coating.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: December 9, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Michael C. Dadalas, Klaus Hintzer, Gernot Loehr, Tilman Zipplies
  • Publication number: 20080293997
    Abstract: A device for detecting an analyte present in a fluid includes a fluorous sensing phase into which the analyte enters selectively in comparison with other components of the fluid.
    Type: Application
    Filed: May 26, 2006
    Publication date: November 27, 2008
    Inventors: Philippe Buhlmann, Paul G. Boswell
  • Patent number: 7449523
    Abstract: Processable rubber compositions contain a vulcanized fluorocarbon elastomer and wear reducing additives dispersed in a matrix of a thermoplastic polymeric material. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles forming a non-continuous phase. The compositions are made by combining a curative, an uncured fluorocarbon elastomer, a wear reducing additive and a thermoplastic material, and heating the mixture at a temperature and for a time sufficient to effect vulcanization of the elastomeric material, while mechanical energy is applied to mix the mixture during the heating step. Shaped articles such as seals, gaskets, O-rings, and hoses may be readily formed from the rubber compositions according to conventional thermoplastic processes such as blow molding, injection molding, and extrusion.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: November 11, 2008
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Edward Hosung Park
  • Patent number: 7449524
    Abstract: A curable fluorocarbon elastomer is dynamically cured in the presence of a major amount of a non-curing thermoplastic material and a minor amount of a second fluorocarbon elastomer that does not cure under the dynamic vulcanization conditions. The non-curing elastomer is preferably present at from 1 to 20 parts based on 100 parts of the curing fluorocarbon elastomer. Processable rubber compositions comprise a continuous phase of a thermoplastic material, particles of a cured fluorocarbon elastomer dispersed in the continuous phase, and an uncured fluorocarbon elastomer at a level of 10 parts or less per 100 parts of the cured fluorocarbon elastomer. Shaped articles such as gaskets and seals are produced by thermoplastic processing of the processable rubber compositions.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: November 11, 2008
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Edward Hosung Park, Francis Joseph Walker
  • Patent number: 7449811
    Abstract: There is provided an electrostatic induction conversion device which is small, has high conversion efficiency between electric energy and kinetic energy, and can prevent degradation of an electret. The electret is formed by injecting an electric charge into the vicinity of the surface of an insulating material, is disposed between two conductors, and is constructed so that it moves relatively to at least one of the conductors opposite to the electret and converts between electric energy and kinetic energy. As the insulating material forming the electret, it is preferable to use a polymer having a fluorine-containing aliphatic cyclic structure.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: November 11, 2008
    Assignee: The University of Tokyo
    Inventors: Yuji Suzuki, Nobuhide Kasagi, Yasuhiro Arakawa
  • Patent number: 7439297
    Abstract: A composition comprising: A) 50-99.9% by weight of at least a copolymer (1) of ethylene (E) with chlorotrifluoroethylene (CTFE) wherein CTFE is comprised between 53 and 70% by moles, having a crystallinity in the range 5-45%; B) 0.1-50% by weight of a fine powder of a nucleating agent, having an average particle size lower than 50 micron and a melting temperature higher than 300° C.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: October 21, 2008
    Assignee: Solvay Solexis S.p.A.
    Inventors: Julio A. Abusleme, Claudia Manzoni
  • Patent number: 7435774
    Abstract: This invention relates to compositions, and methods for producing compositions, for increasing oil repellency, water repellency, or both, of fabric or fibers, containing: (a) an effective amount of a repellent polymer selected from the group consisting of homopolymers and copolymers of one or more monomers having formula I: Rf—(CH2)n—P ??(I) wherein P is a polymerizable or copolymerizable moiety; and (b) a fluorinated carbon solvent.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: October 14, 2008
    Assignee: Peach State Labs, Inc.
    Inventors: Michael S. Williams, Robert Jackson, Robert Andrus
  • Publication number: 20080188595
    Abstract: An ink set includes an ozone stable cyan ink, and an ozone stable magenta ink. According to this exemplary embodiment, the ozone stable magenta ink includes an ozone stable magenta dye and a liquid vehicle including a fluorocarbon surfactant formed at least in part from a polymer comprising at least one Formula 1: Where R1?H, OH, or CH3; and R2?O(CH2)m—(CF2)n—CF3 with m=1-3 and n=0-3.
    Type: Application
    Filed: October 31, 2006
    Publication date: August 7, 2008
    Inventor: Larrie Deardurff
  • Patent number: 7407703
    Abstract: An air permeable composite article that in one embodiment includes a porous base membrane that includes a plurality of nodes and fibrils defining a plurality of interconnecting pores extending through the porous base membrane with each node and fibril having a surface. The composite article also includes a precipitated coating material deposited on the surfaces of the plurality of nodes and fibrils. The coating material includes a copolymer formed from a fluorinated acrylate or methacrylate, an n-alkyl acrylate or methacrylate, and an isocyanate crosslinker. The precipitated coating material provides oil and contaminating agent resistance of at least a number six measured in accordance with AATCC 118 test method.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: August 5, 2008
    Assignees: BHA Group, Inc., Micell Technologies, Inc.
    Inventors: James DeYoung, Robert J. Klare
  • Patent number: 7402626
    Abstract: The present invention relates to a top coat composition, which is characterized in that it is applied to a photoresist top surface by using a polymer containing at least one structure represented by the formula [1], [2] or [3]. It is possible to produce a top coat composition solution by dissolving this top coat composition in an organic solvent. These top coat composition and top coat composition solution can be used in immersion lithography.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: July 22, 2008
    Assignee: Central Glass Company, Limited
    Inventors: Kazuhiko Maeda, Haruhiko Komoriya, Shinichi Sumida, Satoru Miyazawa, Michitaka Ootani
  • Publication number: 20080161481
    Abstract: 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: Application
    Filed: April 25, 2006
    Publication date: July 3, 2008
    Applicant: Solvay Solexis S.P.A.
    Inventors: Julio A. Abusleme, Claudia Manzoni, Giambattista Besana
  • Publication number: 20080153955
    Abstract: A process for the preparation of a fluoroolefin polymer from an azeotropic mixture of monomers having a constant composition, the process including the step of: contacting in a reaction zone: (i) an initiator; and (ii) an azeotropic mixture of monomers including at least one fluoroolefin and, optionally, at least one ethylenically unsaturated comonomer capable of copolymerizing therewith; wherein the contacting is carried out at a temperature, pressure and length of time sufficient to produce the fluoroolefin polymer.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 26, 2008
    Inventors: George J. Samuels, Gregory J. Shafer, Hang T. Pham
  • Publication number: 20080149887
    Abstract: An electrode binder composition comprising at least one metal chelate compound and at least one fluoropolymer. The binder composition used in a battery electrode improves the cohesion of the powdered active electrode material as well as the adhesion strength between the active material layer and the metallic current collector. The invention further relates to battery electrodes containing the binder composition for lithium ion secondary batteries and electric double layer capacitors.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 26, 2008
    Inventors: Jian Wang, Masahiro Yamamoto, Ronald Earl Uschold
  • Patent number: 7384682
    Abstract: An encapsulant composition and an electronic package. The composition includes a resin, a flexibilizing agent, and a filler material. The electronic package includes a substrate, a semiconductor chip, and a material. The semiconductor chip is mounted on an upper surface of the substrate and electrically coupled to the substrate. The material is positioned on the upper surface of the substrate and against an edge surface of the semiconductor chip. The edge surface of the semiconductor chip is substantially perpendicular to a bottom surface of the semiconductor chip. The material is the encapsulant composition.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: June 10, 2008
    Assignee: International Business Machines Corporation
    Inventor: Konstantinos I. Papathomas
  • Patent number: 7381765
    Abstract: A composition of fluoropolymer and dispersed conductive particulate provides an electrically conductive polymeric material resistant to static charge buildup. Radiation curing, especially electron beam radiation curing, is favored for curing fluoroelastomer-based precursor articles into desired electrically conductive articles.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: June 3, 2008
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Edward Hosung Park
  • Patent number: 7381755
    Abstract: An aqueous ink jet ink composition including a pigment, a polymer latex containing at least one halogenated vinyl monomer, at least one surfactant, and a humectant. An ink and receiver combination for a non-absorbing substrate is also disclosed.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: June 3, 2008
    Assignee: Eastman Kodak Company
    Inventors: Xiaoru Wang, Huijuan D. Chen, Ricky G. Frazier, Jin-Shan Wang
  • Publication number: 20080119581
    Abstract: The present invention provides a process for forming a metal pattern in which a metal is chemically absorbed, and a pattern forming material and a crosslinkable monomer used for the process. The process includes: a step for forming a pattern by photolithography including an exposure step for carrying out exposure with a purified water-based developer having a pH of less than 7 on a pattern forming material containing (A) a matrix polymer having at least one of a carboxyl and a sulfonate group, and a rinsing step; a step for forming a metal-containing pattern by immersing the pattern in an aqueous solution containing a metal compound to allow for chemical absorption of a metal ion or a complex ion to the pattern; and a step for forming a metal pattern containing the elemental metal or further containing metal oxide by sintering the metal-containing pattern. A crosslinkable monomer containing a condensation product of a polyhydric alcohol with N-methylol(meth)acrylamide was used.
    Type: Application
    Filed: December 28, 2005
    Publication date: May 22, 2008
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroshi Takanashi, Syozo Miyazawa, Tomoya Kudo
  • Patent number: RE40519
    Abstract: A conductive fluoro-resin composition of the addition reaction curing type is provided comprising (A) a reactive fluorinated polyether compound comprising fluorinated polyether units and having at least two aliphatic unsaturated hydrocarbon radicals in a molecule, (B) a compound having at least two hydrogen atoms each directly attached to a silicon atom, (C) a platinum group metal catalyst, and (D) silver particles. The composition cures into rubbery parts having improved heat resistance, weather resistance and solvent resistance and optionally forming firm bonds to various substrates.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: September 23, 2008
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironao Fujiki, Hiroyasu Hara, Kenichi Fukuda