From Fluorine-containing Monomer Patents (Class 524/544)
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Patent number: 7598312Abstract: 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: GrantFiled: July 12, 2006Date of Patent: October 6, 2009Assignee: Solvay (Société Anonyme)Inventors: Jean-Marie Blaude, Roland Martin
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Publication number: 20090247691Abstract: A fluorine-containing copolymer, which comprises a hydroxyl-terminated fluorine-containing vinyl ether, represented by the following general formula: CF2?CFORfCH2OH (where Rf is a fluoroalkylene group, a fluoroalkyl ether group, or a fluoroalkoxyfluoroalkyl ether group, having 1-25 carbon atoms), and at least one of other fluorine-containing unsaturated monomers, where a high-molecular weight fluorine-containing copolymer having a melt viscosity (230° C.) of 0.1-100 g/10 min. is insoluble in a solvent, and can be used suitably for melt molding, whereas a low-molecular weight fluorine-containing copolymer having a glass transition temperature Tg of 20° C., or higher, and a number average molecular weight Mn of 1,000, or more is soluble in a solvent, and can be used suitably for coating agents, etc.Type: ApplicationFiled: December 10, 2008Publication date: October 1, 2009Applicant: UNIMATEC CO., LTD.Inventors: Jun Kanega, Ji-Shan Jin, Katsumi Suzuki, Takashi Enokida, Keisuke Kokin
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Publication number: 20090239993Abstract: 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: ApplicationFiled: March 20, 2009Publication date: September 24, 2009Applicant: Asahi Glass Company, LimitedInventors: Naoko SUMI, Takashi MORIZUMI, Isao KIMURA
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Patent number: 7592407Abstract: 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: GrantFiled: October 27, 2005Date of Patent: September 22, 2009Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yuji Harada, Jun Hatakeyama, Takeru Watanabe, Takeshi Kinsho
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Patent number: 7589140Abstract: 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: GrantFiled: September 29, 2005Date of Patent: September 15, 2009Assignee: 3M Innovative Properties CompanyInventors: Blake Eldon Chandler, Naiyong Jing
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Publication number: 20090227727Abstract: 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: ApplicationFiled: May 11, 2009Publication date: September 10, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Nobuhiko TSUDA, Yoshiki TANAKA, Shigeru MORITA, Yasuhiko SAWADA, Tetsuo SHIMIZU
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Patent number: 7576164Abstract: Compositions of fluoroelastomers containing copolymerized units of tetrafluoroethylene, propylene, a first cure site selected from the group consisting of i) trifluoroethylene, ii) 3,3,3-trifluoropropene-1, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene, and a second cure site selected from the group consisting of i) copolymerized units of a brominated cure site monomer, ii) copolymerized units of an iodinated cure site monomer, iii) copolymerized units of a chlorinated cure site monomer, iv) brominated endgroups, v) iodinated endgroups and vi) a combination of any of i)-v) are readily curable with polyhydroxy curing systems. The resulting cured articles have a combination of excellent resistance to alkaline fluids, superior tensile properties and compression set resistance, and excellent adhesion to metal substrates. Optionally, the fluoroelastomers may be dual cured by both a polyhydroxy system and an organic peroxide system.Type: GrantFiled: February 27, 2007Date of Patent: August 18, 2009Assignee: Du Pont Performance Elastomers LLC.Inventors: John G. Bauerle, Christopher J. Bish, Theresa M. Dobel, Phan L. Tang
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Publication number: 20090202782Abstract: 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: ApplicationFiled: February 4, 2009Publication date: August 13, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Nelson Leonardo Giani Cardoso, Philippe Andre Fernand Thomas
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Publication number: 20090192259Abstract: Use in LAN cable applications, as materials for the coating of the primary cable and for the external jacket, of TFE thermoprocessable perfluoropolymers comprising perfluoroalkylvinylethers in the following amounts, expressed as percent by weight on the total of the monomers: a) 0-5.5% of perfluoromethylvinylether (PMVE); b) 0.4-4.5% of perfluoroethylvinylether (PEVE) and/or perfluoropropylvinylether (PPVE); when a) is present, then a)+b) ranges from 1.5% to 5.5% by weight on the total of the monomers; optionally c) 0-6% of hexafluoropropene (HFP); the TFE amount being the complement to 100% by weight.Type: ApplicationFiled: February 20, 2007Publication date: July 30, 2009Applicant: Solvay Solexis S.p.AInventors: Pasqua Colaianna, Giulio Brinati, Aldo Sanguineti
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Patent number: 7566762Abstract: 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: GrantFiled: December 22, 2004Date of Patent: July 28, 2009Assignee: Daikin Industries, Ltd.Inventors: Masao Otsuka, Satoshi Tokuno, Katsuya Nakai
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Patent number: 7560501Abstract: 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: GrantFiled: May 29, 2008Date of Patent: July 14, 2009Assignee: International Business Machines CorporationInventor: Konstantinos I. Papathomas
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Patent number: 7560517Abstract: The present invention relates to a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated olefins and having one or more cure sites comprising (a) a halogen capable of participating in a peroxide cure reaction or (b) a nitrile group, said fluoropolymer further comprising repeating units derived from one or more fluorinated allyl ethers of the formula: CF2?CF—CF(Z)—O—Rf??(I) wherein Z represents F or CF3 and Rf represents a fluorinated alkyl group that may contain one or more catenary oxygen atoms. The fluoropolymer can be cured to a fluoroelastomer. The invention also relates to a curable fluoroelastomer composition comprising the fluoropolymer and a curing agent.Type: GrantFiled: November 16, 2005Date of Patent: July 14, 2009Assignee: 3M Innovative Properties CompanyInventors: Klaus Hintzer, Michael Jurgens, Harald Kaspar, Kai Helmut Lochhaas, Werner Schwertfeger
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Patent number: 7560506Abstract: 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: GrantFiled: April 14, 2005Date of Patent: July 14, 2009Assignee: Daikin Industries, Ltd.Inventor: Masato Kashiwagi
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Patent number: 7553894Abstract: 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: GrantFiled: July 28, 2005Date of Patent: June 30, 2009Assignee: 3M Innovative Properties CompanyInventors: Pradip K. Bandyopadhyay, Christopher J. Evoniuk, Krishnakant P. Vora
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Patent number: 7550530Abstract: 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: GrantFiled: June 1, 2004Date of Patent: June 23, 2009Assignee: Daikin Industries Ltd.Inventors: Nobuyuki Tomihashi, Koichiro Ogita, Kiyotaro Terasaka
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Patent number: 7544753Abstract: A process for producing an elastic fluorocopolymer, by emulsion-polymerizing at least one fluoromonomer (a), a vinyl ester monomer (b) represented by the formula CR1R2?CR3COOCH?CH2 optionally, at least one hydrocarbon monomer (c) selected from the group consisting of ethylene, propylene and a vinyl ether, in an aqueous medium to produce an elastic fluorocopolymer latex, adjusting the pH of the elastic fluorocopolymer latex to from 1 to 9, and coagulating the elastic fluorocopolymer latex to isolate an elastic fluorocopolymer.Type: GrantFiled: January 3, 2007Date of Patent: June 9, 2009Assignee: Asahi Glass Company, LimitedInventors: Junpei Nomura, Hiroshi Funaki, Hiroki Kamiya
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Patent number: 7534825Abstract: 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: GrantFiled: December 3, 2004Date of Patent: May 19, 2009Assignee: Solvay Solexis S.p.A.Inventors: Marco Malvasi, Valeri Kapeliouchko
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Patent number: 7528184Abstract: 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: GrantFiled: August 18, 2006Date of Patent: May 5, 2009Assignee: Asahi Glass Company, LimitedInventors: Hiroshi Funaki, Makoto Honda, Masayuki Saito, Hiroki Kamiya
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Patent number: 7514483Abstract: 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: GrantFiled: November 21, 2005Date of Patent: April 7, 2009Assignee: Asahi Glass Company, LimitedInventors: Jun Hoshikawa, Shinya Higuchi, Yasuhiko Matsuoka
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Patent number: 7514484Abstract: 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: GrantFiled: May 1, 2006Date of Patent: April 7, 2009Assignee: Asahi Glass Company, LimitedInventors: Jun Hoshikawa, Shinya Higuchi, Yasuhiko Matsuoka
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Publication number: 20090080073Abstract: 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: ApplicationFiled: March 20, 2006Publication date: March 26, 2009Applicant: Fujifilm CorporationInventors: Kiyoshi Irita, Masaki Noro, Hiroyuki Yoneyama
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Publication number: 20090053519Abstract: 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: ApplicationFiled: August 12, 2008Publication date: February 26, 2009Inventors: Hiroshi Ogawa, Tatsuhiro Suwa, Cheong Hun Song
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Publication number: 20090053462Abstract: 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: ApplicationFiled: April 21, 2006Publication date: February 26, 2009Inventors: Ji Guo, Joseph M. DeSimone, Paul R. Resnick
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Patent number: 7495049Abstract: 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: GrantFiled: January 31, 2006Date of Patent: February 24, 2009Assignee: Du Pont - Mitsoi Fluorochemicals Co, Ltd.Inventor: Jeong Chang Lee
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Patent number: 7495046Abstract: 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: GrantFiled: December 13, 2002Date of Patent: February 24, 2009Assignee: Daikin Industries, Ltd.Inventors: Hirofumi Nishibayashi, Takafumi Yamato, Katsuhiko Higashino, Hiroyuki Tanaka, Tsuyoshi Noguchi
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Patent number: 7488781Abstract: 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: GrantFiled: May 25, 2005Date of Patent: February 10, 2009Assignee: Gore Enterprise Holdings, Inc.Inventors: Ping Xu, Jack Hegenbarth, Xin Kang Chen, Jian Hou
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Publication number: 20090029176Abstract: 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: ApplicationFiled: February 1, 2007Publication date: January 29, 2009Applicant: MITSUBISHI PLASTICS, INCInventors: Miki Nishida, Jun Takagi, Takashi Hiruma, Takayuki Watanabe, Kazunari Katsuhara
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Publication number: 20090028695Abstract: 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: ApplicationFiled: July 21, 2008Publication date: January 29, 2009Inventors: Thomas P. Gannett, Joel D. Citron
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Publication number: 20090023856Abstract: 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: ApplicationFiled: April 13, 2006Publication date: January 22, 2009Applicant: Kuraray Medical Inc.Inventors: Kazumitsu Nakatsuka, Naoki Nishigaki, Mitsunobu Kawashima
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Patent number: 7473658Abstract: 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: GrantFiled: November 13, 2006Date of Patent: January 6, 2009Assignee: E. I. du Pont Nemours and CompanyInventors: Erick Jose Acosta, Anilkumar Raghavanpillai, Sheng Peng, Stefan Reinartz, Sunti Moudgil
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Patent number: 7470741Abstract: 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 amountType: GrantFiled: May 23, 2003Date of Patent: December 30, 2008Assignee: 3M Innovative Properties CompanyInventor: Rudolf J. Dams
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Patent number: 7468403Abstract: 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: GrantFiled: October 6, 2003Date of Patent: December 23, 2008Assignee: Daikin Industries, Ltd.Inventors: Yasukazu Nakatani, Kenji Ichikawa
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Patent number: 7462667Abstract: 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: GrantFiled: June 30, 2005Date of Patent: December 9, 2008Assignee: 3M Innovative Properties CompanyInventors: Michael C. Dadalas, Klaus Hintzer, Gernot Loehr, Tilman Zipplies
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Publication number: 20080293997Abstract: 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: ApplicationFiled: May 26, 2006Publication date: November 27, 2008Inventors: Philippe Buhlmann, Paul G. Boswell
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Patent number: 7449523Abstract: 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: GrantFiled: December 27, 2004Date of Patent: November 11, 2008Assignee: Freudenberg-NOK General PartnershipInventor: Edward Hosung Park
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Patent number: 7449524Abstract: 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: GrantFiled: January 5, 2005Date of Patent: November 11, 2008Assignee: Freudenberg-NOK General PartnershipInventors: Edward Hosung Park, Francis Joseph Walker
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Patent number: 7449811Abstract: 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: GrantFiled: June 16, 2005Date of Patent: November 11, 2008Assignee: The University of TokyoInventors: Yuji Suzuki, Nobuhide Kasagi, Yasuhiro Arakawa
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Patent number: 7439297Abstract: 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: GrantFiled: September 24, 2004Date of Patent: October 21, 2008Assignee: Solvay Solexis S.p.A.Inventors: Julio A. Abusleme, Claudia Manzoni
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Patent number: 7435774Abstract: 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: GrantFiled: September 11, 2002Date of Patent: October 14, 2008Assignee: Peach State Labs, Inc.Inventors: Michael S. Williams, Robert Jackson, Robert Andrus
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Publication number: 20080188595Abstract: 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: ApplicationFiled: October 31, 2006Publication date: August 7, 2008Inventor: Larrie Deardurff
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Patent number: 7407703Abstract: 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: GrantFiled: August 15, 2005Date of Patent: August 5, 2008Assignees: BHA Group, Inc., Micell Technologies, Inc.Inventors: James DeYoung, Robert J. Klare
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Patent number: 7402626Abstract: 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: GrantFiled: November 4, 2004Date of Patent: July 22, 2008Assignee: Central Glass Company, LimitedInventors: Kazuhiko Maeda, Haruhiko Komoriya, Shinichi Sumida, Satoru Miyazawa, Michitaka Ootani
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Publication number: 20080161481Abstract: 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: ApplicationFiled: April 25, 2006Publication date: July 3, 2008Applicant: Solvay Solexis S.P.A.Inventors: Julio A. Abusleme, Claudia Manzoni, Giambattista Besana
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Publication number: 20080153955Abstract: 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: ApplicationFiled: December 20, 2007Publication date: June 26, 2008Inventors: George J. Samuels, Gregory J. Shafer, Hang T. Pham
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Publication number: 20080149887Abstract: 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: ApplicationFiled: December 21, 2007Publication date: June 26, 2008Inventors: Jian Wang, Masahiro Yamamoto, Ronald Earl Uschold
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Patent number: 7384682Abstract: 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: GrantFiled: September 26, 2007Date of Patent: June 10, 2008Assignee: International Business Machines CorporationInventor: Konstantinos I. Papathomas
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Patent number: 7381765Abstract: 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: GrantFiled: November 8, 2004Date of Patent: June 3, 2008Assignee: Freudenberg-NOK General PartnershipInventor: Edward Hosung Park
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Patent number: 7381755Abstract: 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: GrantFiled: September 27, 2002Date of Patent: June 3, 2008Assignee: Eastman Kodak CompanyInventors: Xiaoru Wang, Huijuan D. Chen, Ricky G. Frazier, Jin-Shan Wang
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Publication number: 20080119581Abstract: 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: ApplicationFiled: December 28, 2005Publication date: May 22, 2008Applicant: Tokyo Ohka Kogyo Co., Ltd.Inventors: Hiroshi Takanashi, Syozo Miyazawa, Tomoya Kudo
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Patent number: RE40519Abstract: 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: GrantFiled: September 19, 2002Date of Patent: September 23, 2008Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hironao Fujiki, Hiroyasu Hara, Kenichi Fukuda