Fluorine Containing Monomer Contains F, C And H Only Or F And C Only Patents (Class 526/250)
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Patent number: 7140413Abstract: A fluoropolymer is modified by contacting it with a modifying composition preparable from components comprising a phase transfer catalyst and at least one of a sulfide or disulfide salt, and heating the modifying composition. The modified fluoropolymer is useful in the preparation of composite articles.Type: GrantFiled: October 12, 2005Date of Patent: November 28, 2006Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Gerald Rainer Adalbert Hofmann
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Patent number: 7125941Abstract: The present invention provides a method of making a fluoropolymer through emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated surfactant. At least part of the fluorinated surfactant is added to the aqueous phase as an aqueous mixture with at least one organic liquid that is not miscible with water and that is selected from halogenated and non-halogenated organic liquids, the mixture having droplets having an average droplet diameter of not more than 1000 nm and the mixture being added to the aqueous phase in such an amount that the total amount of the fluorinated surfactant is not more than 1% by weight based on the weight of the aqueous phase and the total amount of said organic liquid is not more than 1% by weight based on the weight of said aqueous phase. The invention allows for an improvement of the efficiency of an aqueous emulsion polymerization process.Type: GrantFiled: February 25, 2002Date of Patent: October 24, 2006Assignee: 3M Innovative Properties CompanyInventors: Ralph Kaulbach, Ludwig Mayer
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Patent number: 7122610Abstract: Nonfluorinated surfactants selected from C7–C20 linear 1-alkanesulfonates, 2-alkanesulfones, and 1,2-alkanedisulfones are particularly effective for stabilizing emulsions in preparing non-elastomeric fluoropolymers containing at least 71 wt % vinylidene fluoride and having at least a 2% crystalline polyvinylidene fluoride content. Processes for making such fluoropolymers using these surfactants, particularly in combination with one or both of a nonionic polymerization initiator and the use of mechanical coagulation to isolate the product, are also provided, as are fluoropolymers made thereby.Type: GrantFiled: April 27, 2004Date of Patent: October 17, 2006Assignee: Arkema Inc.Inventors: Roice Andrus Wille, Mehdi Durali, Lotfi Hedhli, Ramin Amin-Sanayei, John Schmidhauser
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Patent number: 7115690Abstract: There is provided a fluorine-containing copolymer having an aliphatic monocyclic structure in the polymer trunk chain which has a number average molecular weight of from 500 to 1,000,000 and is represented by the formula (Ma): -(M1)-(M2a)-(N)—??(Ma) in which the structural unit M1 is a structural unit derived from an ethylenic monomer having 2 or 3 carbon atoms and at least one fluorine atom, the structural unit M2a is at least one structural unit which introduces an aliphatic monocyclic structure in the polymer trunk chain and is represented by the formula (a): wherein R1 is at least one hydrocarbon group selected from the group consisting of a divalent hydrocarbon group having 1 to 8 carbon atoms and constituting a ring which may be further substituted with a hydrocarbon group or a fluorine-containing alkyl group and a divalent hydrocarbon group having ether bond which has the sum of carbon atoms and oxygen atoms of 2 to 8, constitutes a ring and may be further substituted with a hydrocarbon group oType: GrantFiled: April 2, 2004Date of Patent: October 3, 2006Assignee: Daikin Industries, Ltd.Inventors: Takayuki Araki, Takuji Ishikawa, Meiten Koh
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Patent number: 7112640Abstract: A fluorocopolymer which comprises repeating units (a) based on tetrafluoroethylene and/or chlorotrifluoroethylene, repeating units (b) based on a cyclic hydrocarbon monomer having a dicarboxylic anhydride group and an endocyclic polymerizable unsaturated group, and repeating units (c) based on other monomer, wherein the repeating units (a) are from 50 to 99.89 mol %, the repeating units (b) are from 0.01 to 5 mol % and the repeating units (c) are from 0.1 to 49.99 mol %, based on the total molar amount of the repeating units (a), (b) and (c), and which has a volume flow rate of from 0.1 to 1,000 mm3/sec., and a laminate and coated product thereof. The fluorocopolymer is excellent in adhesion, heat resistance, weather resistance, stress cracking resistance and fuel barrier properties. The laminate is excellent in interlaminar bonding and fuel barrier properties.Type: GrantFiled: September 14, 2005Date of Patent: September 26, 2006Assignee: Asahi Glass Company, LimitedInventors: Atsushi Funaki, Hiroki Kamiya, Shigeru Aida, Toshiyuki Chisaka
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Patent number: 7112383Abstract: The present invention is directed to a binder for electrode materials which comprises tetrafluoroethylene polymer fine particles having an average particle size of not more than about 0.20 ?m and having a standard specific gravity of not more than about 2.20, wherein a mixture prepared from said fine particles with about 17% by weight of the total mixture of an extrusion coagent, when subjected to the measurement of an extrusion pressure by a rheometer, exhibits under the conditions of a draw ratio of 100 to 1 and an extrusion speed of 18±2 mm/min, an extrusion pressure of not less than about 220 kg/cm2.Type: GrantFiled: November 19, 2003Date of Patent: September 26, 2006Assignee: DuPont-Mitsui Fluorochemicals Co. Ltd.Inventor: Kazuo Konabe
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Patent number: 7094469Abstract: A porous or non-porous polymeric substrate having its surface modified with an immobilized fluorocarbon such as perfluorocarbon, polymeric composition is provided. The immobilized fluorocarbon is formed from a monomer having formula: [T—SO2Y—SO2T?]?M+ in which —T and T? are identical or different and comprise an organic radical bearing at least one active polymerization function such as an unsaturation or a ring that can be opened; —M+ comprises an inorganic cation.Type: GrantFiled: August 28, 2001Date of Patent: August 22, 2006Assignee: Mykrolis CorporationInventor: Wilson Moya
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Patent number: 7091288Abstract: Polymerization of fluoroolefin monomers proceeds in a supercritical carbon dioxide solvent at high monomer loading levels to provide a high molecular weight polymer with low polydispersity and/or a unimodal molecular weight distribution.Type: GrantFiled: September 30, 2004Date of Patent: August 15, 2006Assignee: Arkema Inc.Inventors: Sunggyu Lee, H. Bryan Lanterman, Abhay Sardesai, Jonathan Wenzel, Benjamin Marshall, Jeffrey Hsing-Gan Yen, Ramin Amin-Sanayei, Maria Moucharik
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Patent number: 7091295Abstract: Use of amorphous perfluorinated polymers for preparing transparent films at 157 nm, said perfluorinated polymers being free from unstable ionic end groups COF, COOH or their amidic derivatives, esters or salts, said polymers formed by cyclic units deriving from perfluorodioxoles of formula: wherein R?F is equal to RF or ORF wherein RF is a perfluoroalkyl radical having 1–5 carbon atoms; X1 and X2, equal to or different from each other, are F, CF3; said polymers optionally containing units deriving from perfluorinated comonomers optionally containing oxygen atoms; in said polymers the cyclic units deriving from the perfluorodioxoles of formula (IA) being ?95% by moles.Type: GrantFiled: April 30, 2004Date of Patent: August 15, 2006Assignee: Solvay Solexis S.p.A.Inventors: Vincenzo Arcella, Marco Apostolo, Francesco Triulzi
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Patent number: 7084225Abstract: A polymerization process for producing a copolymer of tetrafluoroethylene and (perfluorobutyl)ethylene, prepared by an aqueous dispersion polymerization technique, and the resin produced thereby, are provided. This copolymer contains a relatively small amount, between about 0.02 weight percent and about 0.6 weight percent, of comonomer polymerization units. The copolymer is believed to be comprised of a core-shell structure wherein the polymerized comonomer units reside primarily within the core. The primary particle size of the copolymer ranges from 0.175 microns to and including 0.203 microns and the standard specific gravity is less than 2.143. This copolymer possesses a unique combination of very small particle size coupled with high molecular weight, a combination not heretofore achieved in tetra-fluoroethylene polymers of the dispersion or fine powder type.Type: GrantFiled: February 7, 2005Date of Patent: August 1, 2006Assignee: Gore Enterprise Holdings, Inc.Inventor: Richard L. Baillie
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Patent number: 7078101Abstract: The present invention is a new class of terpolymers for use as high strain electrostrictive polymer films. More particularly, the invention is a class of electrostrictive terpolymers comprising vinylidene fluoride (VDF), trifluoroethylene (TrFE) and at least one monomer having at least one halogen atom side group. The monomer is preferably an ethylene-based monomer and preferably selected to favor gauche-type linkage along the polymer backbone. The halogen atom side group is preferably large enough to move or cause adjacent polymer chains to be farther apart from or away from each other than in the absence of such side group, but not so large that it would inhibit polymer crystallites from forming. The monomer is preferably a chloro-monomer such as chlorofluoroethylene (CFE). The chlorofluoroethylene (CFE) is preferably 1-chloro-2-fluoroethylene or 1-chloro-1-fluoroethylene. The chlorofluoroethylene (CFE) favors gauche-type linkage which favors high electrostrictive strains.Type: GrantFiled: November 21, 2003Date of Patent: July 18, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Thomas S. Ramotowski, George J. Kavarnos, Qiming Zhang
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Patent number: 7074862Abstract: Emulsifier free fluoropolymer manufacturing method in which (a) a chain transfer agent, or a mixture of chain transfer agents are used wherein the chain transfer agents do not yield more than 0.4 weight % relative to the monomer feed of water soluble fluorinated compounds, or (b) a chain transfer agent or a mixture of chain transfer agents selected from alkanes, dialkyl ethers, hydrofluoroethers and/or hydrofluorocarbons.Type: GrantFiled: April 30, 2002Date of Patent: July 11, 2006Assignee: 3M Innovative Properties CompanyInventors: Harald Kaspar, Klaus Hintzer, Greta Dewitte, Werner Schwertfeger
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Patent number: 7071273Abstract: Provided are a tetrafluoroethylene copolymer excellent in paste extrudability, which comprises a unit based on tetrafluoroethylene and a unit based on a monomer represented by a formula of CF2?CF—O—(CF2)nCF?CF2 (wherein n is an integer of from 1 to 6), wherein a content of the unit based on the monomer represented by the formula is from 0.1 to 0.5% by mass, wherein a particle size of a primary particle is from 0.1 to 0.5 ?m, wherein a standard specific gravity is from 2.14 to 2.25, wherein a paste extrusion pressure is from 24.5 to 73.5 MPa and wherein the copolymer remains not undergoing melt molding; a fine powder of a tetrafluoroethylene copolymer; and a production method and a paste extruded product thereof. The TFE copolymer is excellent in paste extrudability and the molded product thereof is excellent in heat resistance and transparency.Type: GrantFiled: November 22, 2004Date of Patent: July 4, 2006Assignee: Asahi Glass Company, LimitedInventors: Shigeki Kobayashi, Shinya Higuchi, Masataka Arai, Hiroki Nagai
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Patent number: 7064170Abstract: Provided is a process for making a copolymer of fluorinated olefin and hydrocarbon olefin selected from ethylene, propylene and mixtures thereof, the process comprising a substantially emulsifier free aqueous emulsion polymerization of said fluorinated olefin and said hydrocarbon olefin, optionally in the presence of fluoropolymer particles and/or fluorinated liquid in a form suitable to improve the copolymerization of fluorinated olefin and hydrocarbon olefin.Type: GrantFiled: October 21, 2003Date of Patent: June 20, 2006Assignee: 3M Innovative Properties CompanyInventors: Harald Kaspar, Peter J. Scott, Klaus Hintzer, Gernot Löhr
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Patent number: 7041728Abstract: The present invention provides a method of making an aqueous dispersion of non-melt processible polytetrafluoroethylene, the method comprising: (a) an aqueous emulsion polymerization of an amount of tetrafluoroethylene to produce a final amount of polytetrafluoroethylene solids and optionally up to 1% by weight based on the amount of tetrafluoroethylene of a perfluorinated comonomer, wherein said aqueous emulsion polymerization is initiated with a free radical initiator and the polymerization is carried out in the presence of a fluorinated surfactant, and wherein before completing the feeding of said amount of tetrafluoroethylene but after feeding at least 80% by weight of said amount of tetrafluoroethylene, free radicals capable of introducing ionic end groups or precursors thereof in the polytetrafluoroethylene polymer are caused to be formed at a rate that without counter measures would cause an increase in the polymerization rate of at least 20%; (b) reducing the amount of fluorinated surfactant in the thType: GrantFiled: October 12, 2004Date of Patent: May 9, 2006Assignee: 3M Innovative Properties CompanyInventors: Tilman Zipplies, Klaus Hintzer, Michael C. Dadalas, Gernot Loehr
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Patent number: 7029750Abstract: The present invention provides a thermoplastic resin composition comprising a thermoplastic resin (A), an acrylic polymer (B), a polytetrafluoroethylene-containing powder mixture (C) and a filler (D), the amount of the acrylic polymer (B) being from 0.1 to 400 parts by weight, the amount of the filler (D) being from 1 to 2000 parts by weight, based on 100 parts by weight of the thermoplastic resin (A), and the amount of a polytetrafluoroethylene component in the polytetrafluoroethylene-containing powder mixture (C) is from 0.01 to 400 parts by weight based on 100 parts by weight of the thermoplastic resin (A).Type: GrantFiled: July 14, 2003Date of Patent: April 18, 2006Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Seiji Takei, Masahiro Osuka, Hideo Aoki, Mari Sekita, Masaaki Mouri
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Patent number: 7022791Abstract: The invention relates to cosmetic, dermatological, and pharmaceutical products containing an electrolyte. The products are obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, and B) optionally, one or more further olefinically unsaturated, noncationic comonomers, C) optionally, one or more olefinically unsaturated, cationic comonomers, D) optionally, one or more silicon-containing component(s), E) optionally, one or more fluorine-containing component(s), F) optionally, one or more macromonomers, G) optionally, the copolymerization taking place in the presence of at least one polymeric additive, H) with the proviso that component A) is copolymerized with at least one component selected from one of the groups D) to G).Type: GrantFiled: November 28, 2001Date of Patent: April 4, 2006Assignee: Clarient GmbHInventors: Matthias Löffler, Roman Morschhäuser
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Patent number: 7022457Abstract: The present invention pertains to photoimaging and the use of photoresists (positive-working and/or negative-working) for imaging in the production of semiconductor devices. The present invention also pertains to novel hydroxy ester-containing polymer compositions that are useful as base resins in resists and potentially in many other applications.Type: GrantFiled: September 24, 2003Date of Patent: April 4, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: William Brown Farnham, Andrew Edward Feiring, Frank Leonard Schadt, III, Weiming Qiu
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Patent number: 7009018Abstract: Provided is a tetrafluoroethylene copolymer consisting of a unit based on tetrafluoroethylene and a unit based on a monomer represented by CF2?CFORf1Rf2 (where Rf1 is a polyfluoroalkylene group which may contain an etheric oxygen atom and Rf2 is a polyfluorocycloalkyl group which may contain an etheric oxygen atom), wherein a content of the latter is from 0.005 to 0.5% by mass. The tetrafluoroethylene copolymer is excellent both in paste extrudability and in heat resistance, has characteristics such as excellent transparency of a molded product, and is suitably applicable to paste extrusion and compression molding.Type: GrantFiled: March 16, 2005Date of Patent: March 7, 2006Assignee: Asahi Glass Company, LimitedInventors: Kazuya Oharu, Hidekazu Okamoto, Shin Tatematsu, Shigeki Kobayashi, Shinya Higuchi, Masataka Arai, Hiroki Nagai
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Patent number: 6992143Abstract: A non-black filled perfluoroelastomer composition comprising a) a perfluoroelastomer having nitrile group cure sites, b) a curative selected from the group consisting of i) a bis(aminophenol) and ii) a compound that decomposes at curing temperatures to generate ammonia and c) 1–25 phr hydrophobic silica filler. Cured compositions have surprisingly better compression set than do similar compounds containing hydrophilic silica.Type: GrantFiled: June 8, 2004Date of Patent: January 31, 2006Assignee: DuPont Dow Elastomers LLCInventor: Shuhong Wang
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Patent number: 6989427Abstract: Blends of PVDF (polyvinylidene fluoride) homopolymer or copolymer with ABC triblock copolymers are useful for manufacturing parts which may be sheets, film, tubes, rods, centrifugal pump components and containers. The PVDF comprises a fraction of non-transferred chains of very high molar mass which are insoluble in the usual solvents for PVDF, such as DMF (dimethylformamide), DMSO (dimethyl sulphoxide) and NMP (N-methylpyrrolidone), the polymer fraction associated with these high-mass chains having a dynamic viscosity of greater than 50 kpoise at 230° C. and at a shear rate of 100 s?1, and has spherulites with a size between 0.5 and 4 ?m.Type: GrantFiled: July 16, 2002Date of Patent: January 24, 2006Assignee: ArkemaInventor: Thierry Pascal
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Patent number: 6986947Abstract: A fluoropolymer is modified by contacting it with a modifying composition preparable from components comprising a phase transfer catalyst and at least one of a sulfide or disulfide salt, and heating the modifying composition. The modified fluoropolymer is useful in the preparation of composite articles.Type: GrantFiled: October 9, 2003Date of Patent: January 17, 2006Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Gerald Rainer Adalbert Hofmann
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Patent number: 6984704Abstract: To provide a fluoropolymer which has a high concentration of functional groups to provide adequate characteristics of the functional groups and which brings about no decrease of Tg. A fluoropolymer having monomer units formed by cyclopolymerization of a functional group-containing fluorinated diene represented by the formula (1): CFR1?CR2-Q-CR3?CHR4??(1) wherein each of R1 to R4 which are independent of one another, represents a hydrogen atom, a fluorine atom, an alkyl group having at most 8 carbon atoms, or an alicyclic hydrocarbon group, and at least one of them is an alicyclic hydrocarbon group, provided that hydrogen atoms in the alkyl group or the alicyclic hydrocarbon group may be substituted by a fluorine atom, an alkyl group or a fluoroalkyl group; and Q represents a bivalent organic group having a blocked acidic group capable of developing an acidic group by an acid or a group capable of being converted into such a blocked acidic group.Type: GrantFiled: February 17, 2005Date of Patent: January 10, 2006Assignee: Asahi Glass Company, LimitedInventors: Shun-ichi Kodama, Isamu Kaneko, Osamu Yokokoji, Shinji Okada, Yoko Takebe, Yasuhide Kawaguchi
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Patent number: 6982308Abstract: A formulation based on the PTFE, homopolymer or modified, comprising: 1) latex of said PTFE having a particle diameter between 5 and 100 nm, comprising an anionic fluorinated surfactant in an amount in the range 2–25% by weight based on the PTFE; 2) a non ionic fluorinated surfactant added to the PTFE latex in an amount in the range 18–60% by weight based on the PTFE.Type: GrantFiled: October 22, 2004Date of Patent: January 3, 2006Assignee: Solvay Solexis S.p.A.Inventors: Valery Kapeliouchko, Enrico Marchese, Tatiana Temtchenko
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Patent number: 6979699Abstract: Sulphonic fluorinated ionomers crosslinked by radical crosslinking of: A) crosslinkable sulphonic fluorinated ionomers, having equivalent weight 380-1300 g/eq and comprising: from 48% to 85% by moles of monomeric units deriving from tetrafluoroethylene (TFE); from 15% to 47% by moles of fluorinated monomeric units containing sulphonyl groups —SO2F; from 0.01% to 5% by moles of monomeric units deriving from a bis-olefin of formula: wherein: m=2-10, preferably 4-8; R1, R2, R5, R6, equal to or different from each other, are H or C1-C5 alkyl groups; B) a fluorinated compound as crosslinking radical initiator; C) a fluorinated bis-olefin of structure (I) as crosslinking agent; the radical crosslinking being carried out at a temperature in the range 250° C.-310° C., preferably 260° C.-300° C.Type: GrantFiled: February 2, 2004Date of Patent: December 27, 2005Assignee: Solvay Solexis, S.p.A.Inventors: Ivan Wlassics, Vito Tortelli
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Patent number: 6933357Abstract: High purity fluoropolymers are obtained by the emulsion polymerization process, removing essentially all ions and coagulating the polymer essentially without adding ions. These polymers are useful in the field of electronic devices.Type: GrantFiled: February 24, 2004Date of Patent: August 23, 2005Assignee: 3M Innovative Properties CompanyInventors: Werner M. A. Grootaert, Georg Burkard, William D. Coggio, Klaus Hintzer, Bernhard Hirsch, Robert E. Kolb, Albert Killich, Gernot Loehr
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Patent number: 6921797Abstract: To provide a method of reducing contents of metal components of a fluorine-containing elastomer through preparation thereof and a molded article obtained from the fluorine-containing elastomer having sufficiently reduced contents of metal components. The method of reducing a metal content of the fluorine-containing elastomer through preparation thereof without using a metal oxide, in which among materials excluding a gaseous monomer which are used for polymerization of a fluorine-containing monomer, coagulation and drying, at least one of them contains substantially no metal component, and the fluorine-containing elastomer which has a metal content of not more than 50 ppm and is obtained by that method.Type: GrantFiled: January 20, 2004Date of Patent: July 26, 2005Assignee: Daikin Industries, Ltd.Inventors: Yoshiyuki Tanaka, Masanori Kitaichi, Tomizo Sota, Tatsuya Morikawa, Toshio Sogabe, Mitsuru Kishine
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Patent number: 6911482Abstract: An ion exchange fluorocarbon resin precursor composition obtained by removing liquid components from a mixed solution of a dispersion of an ion exchange fluorocarbon resin precursor and a dispersion of tetrafluoroethylene polymer (PTFE).Type: GrantFiled: February 13, 2002Date of Patent: June 28, 2005Assignee: Asahi Kasei Kabushiki KaishaInventors: Takuya Hasegawa, Yoshimichi Nakayama
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Patent number: 6878641Abstract: Precursor compositions for the CVD formation of low k dielectric films on a substrate, e.g., as an interlayer dielectric for fabrication of microelectronic device structures. The precursor composition includes a gaseous mixture of (i) at least one aromatic compound, (ii) an inert carrier medium and (iii) optionally at least one unsaturated constituent that is ethylenically and/or acetylenically unsaturated The unsaturated constituent can include either (a) a compound containing ethylenic unsaturation and/or acetylenic unsaturation, or (b) an ethylenically unsaturated and/or acetylenically unsaturated moiety of the aromatic compound (i) of the precursor composition. The low k dielectric film material may be usefully employed in integrated circuitry utilizing copper metallization, to achieve low RC time constants and superior microelectronic device performance.Type: GrantFiled: October 1, 2002Date of Patent: April 12, 2005Assignee: Advanced Technology Materials, Inc.Inventor: Neil H. Hendricks
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Patent number: 6872324Abstract: An aqueous dispersion comprising a polymer (a) having a repeating unit (A) which comprises four carbon atoms connected in a linear chain and which has one double bond at the second position and a polyfluoroalkyl group bonded to an arbitrary carbon atom, and a surfactant (B) having a hydrophile-lipophile balance of at least 10, wherein the polymer (a) is dispersed in an aqueous medium by the surfactant (B).Type: GrantFiled: January 30, 2003Date of Patent: March 29, 2005Assignee: Asahi Glass Company, LimitedInventors: Takashige Maekawa, Minako Shimada, Ryuji Seki, Taiki Hoshino
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Patent number: 6870021Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a cross linking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.Type: GrantFiled: January 25, 2001Date of Patent: March 22, 2005Assignee: MIP Technologies ABInventors: Börje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
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Patent number: 6870020Abstract: Modified polytetrafluoroethylene powder of a sinterable copolymer of tetrafluoroethylene containing about 0.5 to about 10 weight % of fluorinated vinyl ether, the copolymer having a melt creep viscosity of greater than about 1×106 Pa·S. In preferred embodiments, the sinterable copolymer has a melt creep viscosity of greater than about 1×107 Pa·S and fluorinated vinyl ether content of from about 1 to about 7 weight %. The polymer has a combination of a high level of fluorinated vinyl ether and a melt creep viscosity which is high enough to enable the fabrication of articles by sintering.Type: GrantFiled: April 22, 2003Date of Patent: March 22, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Ralph M. Aten, Sharon Ann Libert
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Patent number: 6867273Abstract: Vinylidene fluoride polymers, characterized in that they are thermoplastic vinylidene fluoride/chlorotrifluoroethylene/hexafluoropropylene terpolymers and in that they contain at least 70% vinylidene fluoride, process for obtaining them and use thereof.Type: GrantFiled: July 26, 2001Date of Patent: March 15, 2005Assignee: Solvay (Societe Anonyme)Inventors: Thierry Lannuzel, Vincent Meunier, Régis Faig, Olivier Vidberg
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Patent number: 6864336Abstract: The present invention is based on quad-fluoropolymer suitable for the preparation of a fluoroelastomer. The fluoropolymer comprises repeating units derived from 10 to 40 mol % of tetrafluoroethylene, 40 to 65 mol % of vinylidene fluoride, 1 to 30 mol % of a perfluorinated vinyl ether of the formula CF2?CFOCF2CF2CF2OCF3, 1 to 20 mol % of perfluoromethyl vinylether.Type: GrantFiled: September 11, 2003Date of Patent: March 8, 2005Assignee: 3M Innovative Properties CompanyInventors: Harald Kaspar, Klaus Hintzer, Guy van Gool, Franz März, Allan T. Worm, Tatsuo Fukushi
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Patent number: 6861466Abstract: In an aspect of the invention, a fluoropolymer dispersion, preferably a PTFE dispersion, is provided that comprises fluoropolymer particles having an average particle size of 10 to 400 nm dispersed in water whereby the dispersion has an amount of solids between 35 and 70% by weight. The dispersion is free of fluorinated surfactant having a molecular weight of less than 1000 g/mol (hereinafter called low molecular weight fluorinated surfactant) or contains the low molecular weight fluorinated surfactant in an amount of not more than 0.05% by weight based on the total weight solids of the dispersion. The dispersion further comprises a non-ionic non-fluorinated surfactant or mixture of non-ionic non-fluorinated surfactants and one or more non-fluorinated anionic surfactants. Through the use of a non-fluorinated anionic surfactant, a dispersion is obtained that has a low viscosity at room temperature (20° C.).Type: GrantFiled: January 20, 2004Date of Patent: March 1, 2005Assignee: 3M Innovative Properties CompanyInventors: Michael C. Dadalas, Leonard W. Harvey
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Patent number: 6861490Abstract: The present invention provides a method of making a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated monomers. The method comprises an aqueous emulsion polymerization of gaseous fluorinated monomers in the presence of an ether selected from the group consisting of dimethyl ether (DME), methyl tertiary butyl ether (MTBE) and mixtures thereof.Type: GrantFiled: June 14, 2004Date of Patent: March 1, 2005Assignee: 3M Innovative Properties CompanyInventors: Harald Kaspar, Klaus Hintzer, Karl-Dieter Weilandt, Jost Krichel, Erik Peters, Lisa P. Chen
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Patent number: 6855787Abstract: A multi-layer hose having a multi-layer structure comprising an inner layer (I) made of a fluorocopolymer and an outer layer (II) made of a polyamide resin, wherein the fluorocopolymer constituting the inner layer (I) is a fluorocopolymer which comprises polymerized units (a) based on tetrafluoroethylene, polymerized units (b) based on ethylene and polymerized units (c) based on itaconic anhydride and/or citraconic anhydride, wherein the molar ratio of (a)/(b) is from 20/80 to 80/20 and the molar ratio of (c)/((a)+(b)) is from 1/10,000 to 5/100 and which has a volume flow rate of from 1 to 1,000 mm3/sec., and the polyamide resin constituting the outer layer (II) is polyamide 11 and/or polyamide 12, which satisfies a condition of (terminal amino group concentration)/(terminal carboxyl group concentration)>1.Type: GrantFiled: July 14, 2003Date of Patent: February 15, 2005Assignee: Asahi Glass Company, LimitedInventors: Atsushi Funaki, Naoko Sumi, Eiichi Nishi, Noriyuki Isobe, Tomoharu Nishioka, Koji Nakamura
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Patent number: 6849375Abstract: Photoresist monomers of following Formula 1, photoresist polymers thereof, and photoresist compositions containing the same. The photoresist polymers include a repeating unit comprising the photoresist monomer of Formula 1 as a comonomer and the photoresist compositions containing the same have excellent etching resistance, heat resistance and adhesiveness to a wafer, and are developable in aqueous tetramethylammonium hydroxide (TMAH) solutions. In addition, the photoresist compositions have a low light absorbance at 157 nm wavelength, and thus are suitable for a photolithography process using ultraviolet light sources such as VUV (157 nm) in fabricating a minute circuit for a high integration semiconductor device. wherein Y1, Y2, Y3, Y4, Y5, Y6, Z1, Z2 and m are defined in the specification.Type: GrantFiled: February 21, 2002Date of Patent: February 1, 2005Assignee: Hynix Semiconductor Inc.Inventors: Geun Su Lee, Jae Chang Jung, Ki Soo Shin
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Patent number: 6849377Abstract: Photoresists and associated processes for microlithography in the extreme, far, and near UV are disclosed. The photoresists in some embodiments comprise (a) a fluorine-containing copolymer derived from at least one polycyclic ethylenically unsaturated compound and at least one compound having at least one fluorine atom covalently attached to an ethylenically unsaturated carbon atom; and (b) at least one photoactive component. In other embodiments, the photoresists comprise a fluorine-containing copolymer derived from at least one polycyclic ethylenically unsaturated compound having at least one atom or group covalently attached to a carbon atom contained within a ring structure and separated from each ethylenically unsaturated carbon atom of the ethylenically unsaturated compound by at least one covalently attached carbon atom, wherein the atom or group is selected from the group consisting of fluorine perfluoroalkyl and perfluoroalkoxy.Type: GrantFiled: March 27, 2002Date of Patent: February 1, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Andrew E. Feiring, Frank L. Schadt, III
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Patent number: 6841616Abstract: Halogenated polymers are prepared by a process comprising polymerizing at least one halogen-containing monomer in an aqueous medium containing monomer, radical initiator, and siloxane surfactant. The medium may optionally contain one or more of an antifoulant, a buffering agent and a chain-transfer agent.Type: GrantFiled: March 28, 2003Date of Patent: January 11, 2005Assignee: Arkema Inc.Inventors: Roice Andrus Wille, Lotfi Hedhli, Mehdi Durali, Sayed Youssef Antoun
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Publication number: 20040260044Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: June 21, 2004Publication date: December 23, 2004Inventors: Thomas Robert Earnest, Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Patent number: 6833418Abstract: The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether)homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorovinyl ether)homopolymers and a second fluoropolymer. The dispersions of the present invention may be used for rendering fibrous substrates oil repellent, water repellent and/or stain repellent.Type: GrantFiled: April 5, 2002Date of Patent: December 21, 2004Assignee: 3M Innovative Properties CompanyInventors: Lian S. Tan, Richard S. Buckanin, E. Steven McAlister
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Patent number: 6833419Abstract: The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, B) optionally, one or more other olefinically unsaturated, optionally crosslinking, comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol, and C) one or more at least monofunctional, fluorine-containing components capable of free-radical polymerization, the copolymerization D) taking place in the presence or absence of at least one polymeric additive having number-average molecular weights of from 200 g/mol to 109 g/mol. The water-soluble or water-swellable copolymers of the present invention are useful in paper processing, laundry detergents, textile processing, petroleum extraction and formulating cosmetics.Type: GrantFiled: November 24, 2003Date of Patent: December 21, 2004Assignee: Clariant GmbHInventors: Roman Morschhäuser, Christoph Kayser, Matthias L{hacek over (o)}ffler
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Publication number: 20040242821Abstract: Novel silicon-containing polymers are provided comprising recurring units having a POSS pendant and units which improve alkali solubility under the action of an acid. Resist compositions comprising the polymers are sensitive to high-energy radiation and have a high sensitivity and resolution at a wavelength of up to 300 nm and improved resistance to oxygen plasma etching.Type: ApplicationFiled: May 26, 2004Publication date: December 2, 2004Inventors: Jun Hatakeyama, Takanobu Takeda
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Publication number: 20040242819Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: April 27, 2004Publication date: December 2, 2004Inventors: Thomas Robert Earnest, Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Publication number: 20040242820Abstract: Use of amorphous perfluorinated polymers for preparing transparent films at 157 nm, said perfluorinated polymers being free from unstable ionic end groups COF, COOH or their amidic derivatives, esters or salts, said polymers formed by cyclic units deriving from perfluorodioxoles of formula: 1Type: ApplicationFiled: April 30, 2004Publication date: December 2, 2004Inventors: Vincenzo Arcella, Marco Apostolo, Francesco Triulzi
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Patent number: 6825304Abstract: A formulation based on the PTFE, homopolymer or modified, comprising: 1) latex of said PTFE having a particle diameter between 5 and 100 nm, comprising an anionic fluorinated surfactant in an amount in the range 2-25% by weight based on the PTFE; 2) non ionic fluorinated surfactant added to the PTFE latex in an amount in the range 18-60% by weight based on the PTFE.Type: GrantFiled: August 20, 2001Date of Patent: November 30, 2004Assignee: Ausimont S.p.A.Inventors: Valery Kapeliouchko, Enrico Marchese, Tatiana Temtchenko
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Publication number: 20040236047Abstract: The present invention provides a TFE resin molding material which has electric characteristics, particularly low dielectric dissipation factor, in a microwave area, can also lower extrusion pressure as the material is of low molecular weight and can provide a molded article excellent in surface smoothness. The material is especially useful as a coating material for a coaxial cable for equipment in which microwave is used, including satellite transmitting equipment and a cell phone base station. A tetrafluoroethylene resin molding material excellent in high frequency electric characteristics, which provides a molded article having a dielectric constant of at most 2.2 and a dielectric dissipation factor of at most 1.60×10−4 under 12 GHz, and a standard specific gravity of at least 2.192 and less than 2.3 is provided. As the tetrafluoroethylene resin, a tetrafluoroethylene homopolymer or a copolymer of 99.9 to 99.9999% by mole of tetrafluoroethylene and 0.0001 to 0.Type: ApplicationFiled: January 27, 2003Publication date: November 25, 2004Inventors: Makato Ono, Michio Asano, Yoshinori Nanba, Shunji Kasai, Hiroyuki Yoshimoto, Shinichi Yano, Tetsuo Shimizu
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Publication number: 20040232580Abstract: The present invention relates to the process of extruding melt drawing fluoropolymer onto conductor to form insulated conductor at a line speed of at least 533 m/min and having no more than 10 sparks and no more than 2 lumps/13.7 km of insulated conductor under conditions that comprise an adequate process window to allow for these results to be obtained at different conditions within the process window. The invention identifies the critical parameters for achieving this process window, namely melt flow rate of the fluoropolymer, preferably being 30±3 g/10 min, and the melt temperature of the extruding/melt-drawing step, preferably being 393° C.±6° C.Type: ApplicationFiled: April 27, 2004Publication date: November 25, 2004Inventors: Patrick Anthony Defeo, Glenn W. Heffner, Niall D. Mckee, Sundar Kilnagar Venkataraman
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Patent number: 6822060Abstract: A process for producing a tetrafluoroethylene polymer, which comprises polymerizing tetrafluoroethylene in an aqueous medium in the presence of a dispersant, a stabilizer and a polymerization initiator, wherein the polymerization initiator is a redox polymerization initiator comprising a halogen acid salt YXO3/a sulfite Z2SO3 wherein X is a chlorine atom, a bromine atom or an iodine atom, Y is a hydrogen atom, ammonium, an alkali metal or an alkaline earth metal, and Z is ammonium, an alkali metal or an alkaline earth metal. By this process, it is possible to obtain a tetrafluoroethylene polymer which is suitable for a stretching operation after paste extrusion.Type: GrantFiled: February 12, 2002Date of Patent: November 23, 2004Assignee: Asahi Glass Company, LimitedInventors: Shigeki Kobayashi, Jun Hoshikawa, Kazuo Kato, Hiroki Kamiya, Hiroyuki Hirai