Fluorine Reactant Contains Atoms Other Than C, H, Or Hal Patents (Class 525/200)
-
Publication number: 20100130690Abstract: A PTFE resin does not require the hot coining method and is more difficult to deform than conventional PTFE resins. A polytetrafluoroethylene molded body is obtained from a crosslinking polytetrafluoroethylene that possesses at least one type of reactive functional group selected from the group that comprises cyano group (—CN), a first functional group and a second functional group. The first functional group is represented by: The second functional group is represented by (where R1 and R2 are independently selected from a hydrogen atom, a halogen atom, —OR3, —N(R3)2, and —R3, and where R3 is an alkyl group of from 1 to 10 carbon atoms that optionally contains fluorine or hydrogen atoms). The polytetrafluoroethylene substantially does not flow even when heated up to or above its melting point, and is baked after it is compression molded.Type: ApplicationFiled: October 31, 2006Publication date: May 27, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshinori Nanba, Meiten Koh
-
Patent number: 7718736Abstract: A processable rubber composition contains a double cured fluorocarbon elastomer dispersed in a matrix of a thermoplastic polymeric material. The cured elastomer contains repeating units derived from one or more fluorine-containing monomers, and further contains low levels of a peroxide cure site that contains at least one of a C—Cl bond, a C—Br bond, a C—I bond, and an olefin. 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. In various embodiments, the processable compositions are thermally processed into molded articles that exhibit a high degree of base resistance, especially a high degree of resistance to degradation of physical properties upon exposure to fluids containing strong nucleophiles such as amines.Type: GrantFiled: June 30, 2005Date of Patent: May 18, 2010Assignee: Freudenberg-NOK General PartnershipInventors: Edward Hosung Park, Francis Joseph Walker
-
Publication number: 20100120970Abstract: The present invention relates to novel (AB) block copolymers for use in coating surfaces to provide self-cleaning surfaces and capture/release materials wherein the copolymers comprises a first hydrophobic block (A) comprising a polymer selected from the group consisting of: a homopolymer of a fluorinated acrylate or methacrylate monomer (A1); a random, alternating, gradient or block copolymer, (A1A2) comprising: a fluorinated acrylate or methacrylate monomer (A1); and a non-fluorinated acrylate or methacrylate monomer (A2); a random, alternating, gradient or block copolymer, (A1A2) comprising: a fluorinated acrylate or methacrylate monomer (A1) and a silyl acrylate or methacrylate monomer (A3); and a random, alternating, gradient or block copolymer, (A1A2A3) comprising: a silyl acrylate or methacrylate monomer (A1), a fluorinated acrylate or methacrylate monomer (A2) and a non-fluorinated acrylate or methacrylate monomer (A3); and a second hydrophilic block (B) comprising a non-fluorinated acrylate or methacType: ApplicationFiled: December 12, 2007Publication date: May 13, 2010Applicant: UNIVERSITY OF LEEDSInventors: Simon Biggs, Gaelle Baquey
-
Patent number: 7713629Abstract: A polyelectrolyte film is provided, the polyelectrolyte film comprises an interpenetrating network of a net positively charged polymer and a net negatively charged polymer, wherein the net positively charged polymer, the net negatively charged polymer, or both contain polymer repeat units with at least two fluorine atoms.Type: GrantFiled: March 28, 2005Date of Patent: May 11, 2010Assignee: Florida State University Research FoundationInventor: Joseph B. Schlenoff
-
Publication number: 20100112482Abstract: A fluorinated monomer of cyclic acetal structure has formula (1) wherein R is a C1-C20 alkyl group which may be substituted with halogen or separated by oxygen or carbonyl, and Z is a divalent organic group which forms a ring with alkylenoxy and contains a polymerizable unsaturated group. A polymer derived from the fluorinated monomer may be endowed with appropriate water repellency, water sliding property, lipophilicity, acid lability and hydrolyzability and is useful in formulating a protective coating composition and a resist composition.Type: ApplicationFiled: October 29, 2009Publication date: May 6, 2010Inventors: Takeru WATANABE, Satoshi SHINACHI, Takeshi KINSHO, Koji HASEGAWA, Yuji HARADA, Jun HATAKEYAMA, Kazunori MAEDA, Tomohiro KOBAYASHI
-
Publication number: 20100087599Abstract: The invention provides a fluororesin composition capable of providing a molded article having low relative dielectric constant, excellent in a temperature stability and causing only small transmission losses. The invention is a fluororesin composition wherein a rate of change in relative dielectric constant between 25° C. and 80° C. of a molded article produced therefrom under a standard condition is not greater than 0.2%.Type: ApplicationFiled: February 18, 2008Publication date: April 8, 2010Applicant: DAIKIN INDUSTRIES , LTD.Inventors: Hiroyuki Yoshimoto, Hirokazu Yukawa, Yasuhiko Sawada, Taku Yamanaka, Masamichi Sukegawa
-
Patent number: 7683130Abstract: The present invention relates to plenum cables jacketed with a composition comprising perfluoropolymer, inorganic char-forming agent, and fluoropolymer additive, which composition passes the NFPA-255 burn test.Type: GrantFiled: July 12, 2006Date of Patent: March 23, 2010Assignees: E.I. du Pont de Nemours and Company, Alphagary CorporationInventors: Yevgeniy I. Globus, Mark A. Jozokos, Sundar Kilnagar Venkataraman, Heidi Elizabeth Burch
-
Publication number: 20100055273Abstract: Disclosed is a blended composition comprising a humidity-dependent composition having a ratio of wet cup permeance to dry cup permeance greater than 10 and a crystallizable polymer sufficiently permeable to oxygen, carbon dioxide and water vapor, exhibiting an increase in permeability to at least one of oxygen and carbon dioxide by a factor of at least 2.5 over a temperature range of 10° C. between 0° C. and 40° C. Also disclosed are packaging materials comprising the blended composition and methods for storing respiring materials using the packaging materials.Type: ApplicationFiled: August 26, 2008Publication date: March 4, 2010Applicant: E.I. du Pont de Nemours and CompanyInventor: JOHN CHU CHEN
-
Publication number: 20100047660Abstract: Featured are novel heterocycle substituted hydroquinones, aromatic copolymers and homopolymers bearing main and side chain polar pyridine units. These polymers exhibit good mechanical properties, high thermal and oxidative stability, high doping ability and high conductivity values. These novel polymers can be used in the preparation and application of MEA on PEMFC type single cells. The combination of the above mentioned properties indicate the potential of the newly prepared materials to be used as electrolytes in high temperature PEM fuel cells.Type: ApplicationFiled: August 24, 2009Publication date: February 25, 2010Inventors: Maria Geormezi, Nora Gourdoupi
-
Patent number: 7666947Abstract: A gasket material comprising polytetrafluoroethylene (PTFE) and a thermoplastic polymer having a melting point lower than the melting point of PTFE. Preferred thermoplastic polymers comprise fluorinated thermoplastic polymers, and most preferred fluorinated thermoplastic polymers comprise fluorinated ethylene propylene and perfluoroalkoxy copolymer. The PTFE component preferably comprises full density PTFE, and a filler material may optionally be added. The PTFE component is present in the gasket material in an amount from approximately 50% to less than 100%, based on the total weight of the gasket material, and the thermoplastic polymer is present in an amount from greater than 0% to approximately 20%, based on the total weight of the gasket material.Type: GrantFiled: April 7, 2005Date of Patent: February 23, 2010Assignee: Garlock Sealing Technologies, LLCInventors: Jarod R. Hammar, Erik Phelps, Stefan Pitolaj
-
Patent number: 7662886Abstract: Processable rubber compositions contain a vulcanized elastomeric material dispersed in a matrix of a thermoplastic polymeric material. The vulcanized elastomeric material is a peroxide cure polymeric material containing repeating units derived from fluorine-containing monomers and at least one peroxide cure site monomer. 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 radical curing system, a fluorocarbon elastomer material, and a fluoroplastic 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 may be readily formed from the rubber compositions according to conventional thermoplastic processes such as blow molding, injection molding, and extrusion.Type: GrantFiled: September 30, 2008Date of Patent: February 16, 2010Assignee: Freudenberg-NOK General PartnershipInventor: Edward Hosung Park
-
Publication number: 20090326154Abstract: Polymeric compositions comprising: 1) at least one thermoprocessable semicrystalline halo-polymer; 2) an additive in amounts between 0.01 and 10% by weight of 1) one or more (per)fluoropolyether polymers of formula: Q-O-[A-B]z-[A-B?]z?-A-Q? (I) wherein: A=—(X)a—O-A?-(X?)b— wherein A? is a perfluoropolyether chain; X, X?=—CF2—, —CF2CF2—, —CF(CF3)—; a, b=0 or 1; B derives from one or more olefins, of which at least one homopolymerizable by radical way, of formula: —[(CR1R2—CR3R4)j(CR5R6—CR7R8)j?]— (Ia) wherein j=1-30, j?=0-29, with the proviso that 2<(j+j?)<30; R1-R8=halogen, H, C1-C6 (per)haloalkyl, C1-C6 alkyl, or C1-C6 oxy(per)fluoroalkyl; B?=(Ia) but at least one of R1-R8 has a meaning different from that in B, and 2?(j+j?)<30; z?2; z? is 0 or an integer; z, z? are such that the number average molecular weight of (I) is between 500 and 500,000; Q, Q?=C1-C3 perfluoroalkyl; C1-C6 alkyl; or functional end group(s).Type: ApplicationFiled: November 29, 2005Publication date: December 31, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Julio A. Abusleme, Marco Avataneo, Giancarlo Perfetti
-
Publication number: 20090306296Abstract: The object of the present invention is to offer a PTFE resin that can be prepared by common molding methods such as compression molding and the like without the necessity for expensive equipment or hot coining methods or the like that are deleterious to productivity, and where harmful substances are not generated during manufacture, and convention strength, crystallinity and surface characteristics are preserved, and where there is neither anisotropy nor heterogeneity, and where the PTFE resin is more difficult to deform than is conventional PTFE resin. A crosslinkable polytetrafluoroethylene composition of matter contains polytetrafluoroethylene and a crosslinking agent. The polytetrafluoroethylene possesses at least one reactive functional group selected from the group consisting of cyano (—CN), carboxyl (—COOH), alkoxycarbonyl (—COOR (where R is a monovalent organic group)) and acid halide (—COX (where X is a halogen atom)) on at least one of the main chain and side chain terminal ends.Type: ApplicationFiled: April 24, 2006Publication date: December 10, 2009Applicant: Daikin Industries, Ltd.Inventors: Yoshinori Nanba, Meiten Koh, Yasuhiko Sawada
-
Publication number: 20090281245Abstract: A proton conductive graft polymer comprises at least a structure unit of a sulfonated polymer side chain covalently attached to a hydrophobic perfluorocyclobutane polymer main chain. The sulfonated condensation polymer side chain has a high local ion exchange capacity while the main polymer chain is substantially free of sulfonic acid group. A membrane made from the graft polymer can provide good mechanical properties and high proton conductivity at wide range of humidity and temperatures.Type: ApplicationFiled: August 25, 2008Publication date: November 12, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Sean M. MacKinnon, Timothy J. Fuller, Frank Coms, Michael R. Schoeneweiss
-
Publication number: 20090264596Abstract: Fluoropolymers comprising a fluoroelastomer matrix incorporating therein particles of a semicrystalline fluoropolymer formed of tetrafluoroethylene (TFE) homopolymers or copolymers, wherein the average particle sizes of the semicrystalline fluoropolymer latex range from 10 to 100 nm.Type: ApplicationFiled: June 26, 2009Publication date: October 22, 2009Inventors: Margherita ALBANO, Marco Apostolo, Vincenzo Arcella, Enrico Marchese
-
Patent number: 7604861Abstract: The present invention provides a fluororesin composition, which is excellent in moldability and crack resistance, a process for preparing the composition and a cable evenly coated with the composition. Specifically, the present invention provides a fluororesin composition wherein polytetrafluoroethylene is compounded to a terpolymer comprising tetrafluoroethylene, hexafluoropropylene and perfluoroalkyl vinylether. Also, the present invention provides a process for preparing the composition which comprises kneading with a multi-screw kneader. Furthermore, the present invention provides a cable which is coated with the resin.Type: GrantFiled: December 18, 2006Date of Patent: October 20, 2009Assignee: Daikin Industries, Ltd.Inventors: Masayuki Namimatsu, Yoshiyuki Hiraga, Yoshiyuki Takase, Tadahiro Yabu
-
Publication number: 20090253835Abstract: The present invention relates to an aminoplast resin, suitable for decorative applications and comprising between 0.005 and 5 wt. % of a polyfluorinated (alk-)acrylic polymer, preferably selected from the group consisting of perfluoroalkyl acrylic (co)polymers, perfluoroalkyl methacrylic (co)polymers, and combinations thereof. The present invention further relates to a laminate comprising a top layer and a bottom layer, whereby the top layer comprises an at least partly cured aminoplast resin, characterised in that the top layer comprises between 0.002 and 5 wt. % of a polyfluorinated (alk-)acrylic polymer, preferably selected from the group consisting of perfluoroalkyl acrylic (co)polymers, perfluoroalkyl methacrylic (co)polymers, and combinations thereof.Type: ApplicationFiled: January 23, 2007Publication date: October 8, 2009Inventors: Lars L. Evers, Karel Franciscus Hubertus K.F.H. Bonekamp, Hermann Phillip H.P. Peeters, Martin Jean-Jacques M.J. Pabon
-
Publication number: 20090253854Abstract: High purity perfluoroelastomer composites and processes for producing the same are provided. High purity composites may be formed from compositions comprising a crosslinkable fluoroelastomer terpolymer of TFE, PAVE, and CNVE, and functionalized PTFE, which may be crosslinked to form crosslinked composites having low metal content and low compression set. Emulsion mixtures for forming the high purity composites are also provided.Type: ApplicationFiled: January 14, 2009Publication date: October 8, 2009Inventors: Ping Xu, Jack Hegenbarth
-
Patent number: 7588796Abstract: A method of making a composite membrane with ion exchange properties includes, in an exemplary embodiment, forming a porous membrane from a first material, dissolving a coating material in a fluid at supercritical conditions, and exposing the porous membrane to the coating material dissolved in the supercritical fluid. The method also includes precipitating a uniform coating of the coating material onto an exterior surface of the porous membrane by changing the supercritical conditions of the fluid to a non-supercritical condition, and applying an ion exchange material to the coated porous membrane so that the ion exchange material is in intimate contact with substantially all of the coated surfaces of the porous membrane.Type: GrantFiled: March 11, 2005Date of Patent: September 15, 2009Assignee: BHA Group, Inc.Inventors: Robert J. Klare, James DeYoung, James B. McClain
-
Publication number: 20090203830Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min. as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo) fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: ApplicationFiled: June 27, 2006Publication date: August 13, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Julio A. Abusleme, Giulio Brinati, Pier Antonio Guarda
-
Publication number: 20090203846Abstract: Thermoplastic vulcanizate compositions prepared from fluorothermoplastic matrix and dispersed fluoroelastomeric regions, and articles comprising the thermoplastic vulcanizate, exhibiting improved resistance to polar organic solvents.Type: ApplicationFiled: February 8, 2008Publication date: August 13, 2009Applicant: Freudenberg-NOK General PartnershipInventors: Edward Hosung Park, Francis Joseph Walker
-
Publication number: 20090192263Abstract: The present invention provides prepolymers based on poly(alkyl ethers) having terminal trifluorovinyl aromatic containing groups and polymers produced from such prepolymers. The prepolymers and polymers are useful as biomedical devices such as contact lenses or intraocular lenses.Type: ApplicationFiled: April 9, 2009Publication date: July 30, 2009Inventors: Derek Schorzman, Joseph C. Salamone
-
Patent number: 7560520Abstract: Methods and systems for modifying a polymer are disclosed herein. A matrix is generally provided having a surface thereof, wherein the matrix comprises a plurality of hyperbranched polymers. The plurality of hyperbranched polymers can be chemically bound to a plurality of surfactants or order to modify the surface and produce a polymeric material thereof. The surface is tailored with a plurality of functional groups that self-assemble and are deliverable to the surface of the solution, including interfaces thereof, thereby permitting a high-density assembly of functional groups to operate in concert with one another in order to generate a modified surface thereof. The polymeric material produced thereof can be reversibly adaptable to environmental conditions through a blooming of varying surface functional group to the surface of the solution.Type: GrantFiled: November 7, 2005Date of Patent: July 14, 2009Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Joshua A. Orlicki, Robert E. Jensen, Matthew S. Bratcher, Steven H. McKnight
-
Patent number: 7557164Abstract: Blends of fluorinated ionomer with at least two nonionomeric fluoropolymers provide fuel cell membranes whose tensile strength and conductivity are superior to blends using a single fluoropolymer.Type: GrantFiled: August 18, 2004Date of Patent: July 7, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Vinci Martinez Felix, Gonzalo Escobedo, Ram-Tirth Khanna
-
Publication number: 20090171004Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min, as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo)fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: ApplicationFiled: June 27, 2006Publication date: July 2, 2009Applicant: Solvay Solexis S.p.AInventors: Julio A. Abusleme, Giulio Brinati, Pier Antonio Guarda
-
Patent number: 7553907Abstract: Melt processible fluoropolymer containing functional groups such as hydroxyl and nitrile have antistatic properties that make them suitable in articles and parts for use in conditions where static electricity can be a problem, such as copying machines and fuel lines.Type: GrantFiled: August 23, 2004Date of Patent: June 30, 2009Assignee: DuPont-Mitsui Fluorochemicals Co LtdInventor: Jeong Chang Lee
-
Patent number: 7550555Abstract: Ultrahigh molecular weight polyethylene compositions of highly beneficial sintering characteristics are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described.Type: GrantFiled: January 24, 2003Date of Patent: June 23, 2009Assignee: Smith & Nephew Orthopaedics AGInventors: Paul Smith, Jeroen Visjager, Theo Tervoort
-
Publication number: 20090105420Abstract: This invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic hydrogen-containing fluoropolymer [polymer (A)]; and from 0.1 to 10% by weight of (A) of at least one per(halo)fluoropolymer chosen among tetrafluoroethylene (TFE) copolymers having a dynamic viscosity at a shear rate of 1 rad sec?1 of less than 10 Pa sec at a temperature of 280° C. [polymer (B)]. The addition of a TFE copolymer [polymer (B)] of low melt viscosity advantageously enables improvement of rheological behavior of thermoplastic hydrogen-containing fluoropolymer (A), making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the invention are a process for manufacturing said thermoplastic fluoropolymer composition and the articles, such as shaped articles, films, cable sheathing, pipes, flexible pipes, hollow bodies comprising said thermoplastic fluoropolymer composition.Type: ApplicationFiled: April 23, 2007Publication date: April 23, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Julio Abusleme, Alessio Marrani
-
Patent number: 7521508Abstract: Two-phase or single-phase admixtures of a plastic and an elastomer, two or more thermoplastics, or two or more elastomers are irradiated (preferably with electron beam radiation) to cross-link the thermoplastic and, in the case of elastomer and thermoplastic admixtures, generate bi-modal molecules having moieties derived from both the elastomer and the thermoplastic.Type: GrantFiled: June 30, 2004Date of Patent: April 21, 2009Assignee: Freudenberg-NOK General PartnershipInventors: Edward Hosung Park, Francis Joseph Walker
-
Publication number: 20090093591Abstract: An extrudable composition comprising a non-fluorinated, melt processable host polymer and from about 25 parts per million by weight to about 50% by weight, based on total weight of said extrudable composition, of a fluoropolymer consisting essentially of copolymerized units of from 45 to 95 mole percent, based on total weight of said fluoropolymer, of tetrafluoroethylene (TFE) and from 5 and 55 mole percent, based on total weight of said fluoropolymer, of 3,3,3-trifluoropropylene (TFP).Type: ApplicationFiled: October 9, 2007Publication date: April 9, 2009Inventors: Donald F. Lyons, Steven R. Oriani
-
Publication number: 20090088529Abstract: VDF-based curable fluoroelastomers, having a glass transition temperature lower than ?49° C., preferably lower than ?50° C., and having the following composition, as percent by moles: A) from 25% to 50%, preferably from 30% to 45%, of the monomer of formula: CF2=CFOCF2OCF3 (a); B) one or more (per)fluorinated comonomers having at least one unsaturation of ethylene type in amounts from 75% to 50%, preferably from 70% to 55%; said one or more comonomers comprising vinylidene fluoride (VDF) in amounts from 50% to 75% on the total of the monomer moles; the sum of the molar percentages of the monomers being 100%; said fluoroelastomers containing an amount of —COF end groups in the polymer lower than the sensitivity limit of the method reported in the description.Type: ApplicationFiled: January 15, 2007Publication date: April 2, 2009Inventors: Francesco Triulzi, Margherita Albano, Milena Stanga
-
Publication number: 20090087799Abstract: A composition comprising (A) a polymer having an alcohol structure with plural fluorine atoms substituted at ?- and ??-positions and having k=0.01-0.4 and (B) an aromatic ring-containing polymer having k=0.3-1.2 is used to form an antireflective coating. The ARC-forming composition can be deposited by the same process as prior art ARCs. The resulting ARC is effective in preventing reflection of exposure light in photolithography and has an acceptable dry etching rate.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Inventors: Seiichiro Tachibana, Kazumi Noda, Jun Hatakeyama, Takeshi Kinsho
-
Patent number: 7485683Abstract: A compatibilizer including a first portion compatible with a fluoropolymer and a second portion compatible with a polyolefin. Compatibilized compositions comprising a polyolefin, a fluoropolymer, and a compatibilizer are also disclosed. Methods for forming both the compatibilizer and the blends contained in the compatibilizer are described. The compatibilized compositions of the present invention exhibit desired mechanical properties such as tensile strength and elongation. The flame retarded compatibilized blends exhibit desirable dielectric properties, are flame resistant and exhibit low smoke emission.Type: GrantFiled: June 26, 2006Date of Patent: February 3, 2009Assignee: Teknor Apex CompanyInventors: Raman Patel, Biing-Lin Lee, John C. Andries, Maryellen Cox
-
Publication number: 20090030153Abstract: VDF curable fluoroelastomers, ionically cured, having a compression set after a time of 24 h (ASTM D 39/B) at ?10° C. lower than 60%, preferably lower than 50% and at ?25° C. lower than 90%, preferably lower than 75%, comprising hexafluoropropene (HFP) in amounts higher than 10% by moles and one vinylether of formula: CF2?CFOCF2OCF3 (a), an amount of —COF and groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.Type: ApplicationFiled: January 15, 2007Publication date: January 29, 2009Inventors: Milena Stanga, Francesco Triulzi, Margherita Albano
-
Publication number: 20090023863Abstract: A cross-linked fluorine-containing copolymer moldings applicable to a plasma irradiation step, which is molded as a peroxide cross-linking product of a fluorine-containing copolymer blend comprising a fluorine-containing elastomer copolymer and a fluorine-containing resin copolymer, which is a vinylidene fluoride-tetrafluoroethylene copolymer, both of the copolymers having reaction sites capable of reacting with a common peroxide-based cross-linking agent, respectively, has desired normal state physical properties and compression set value, even if applied to a plasma irradiation step, while reducing particle generation quantity of the fluorine-containing copolymers themselves.Type: ApplicationFiled: September 9, 2005Publication date: January 22, 2009Inventors: Jun Kanega, Takashi Obara, Takashi Enokida
-
Publication number: 20090005511Abstract: VDF-based curable fluorelastomers, having a glass transition temperature from ?10° C. to ?35° C., comprising: B) monomer of formula: CF2?CFOCF2OCF3 (a), C) one or more comonomers selected from: tetrafluoroethylene (TFE), per-fluoromethylvinylether (PMVE), perfluoropropene (HFP), and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method which uses the FT-IR spectroscopy described in the present application.Type: ApplicationFiled: January 15, 2007Publication date: January 1, 2009Inventors: Margherita Albano, Milena Stanga, Francesco Triulzi
-
Patent number: 7470749Abstract: A polymer electrolyte fuel cell comprising a membrane-form polymer electrolyte, a cathode disposed on one side of the polymer electrolyte, and an anode disposed on the other side of the polymer electrolyte, wherein the cathode comprises a catalyst and an ion exchange resin, and the ion exchange resin is made of a polymer comprising the following segments A and segments B: Segments A: segments made of a polymer having sulfonic acid groups; and Segments B: segments made of a fluoropolymer having substantially no ion exchange groups.Type: GrantFiled: October 6, 2005Date of Patent: December 30, 2008Assignee: Asahi Glass Company, LimitedInventors: Atsushi Watakabe, Takeshi Eriguchi
-
Publication number: 20080293888Abstract: A diamine compound of formula (I) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound.Type: ApplicationFiled: December 19, 2006Publication date: November 27, 2008Applicant: ROLIC AGInventors: Thomas Bachels, Zoubair Mohammed Cherkaoui, Guy Marck, Olivier Muller, Joachim Reichardt, Andreas Schuster, Hubert Seiberle, Peggy Studer, Thomas Peglow, Jean-Francois Eckert
-
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
-
Patent number: 7449520Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.Type: GrantFiled: December 6, 2005Date of Patent: November 11, 2008Assignee: DuPont Performance ElastomersInventors: George Richard Chapman, Jr., Steven Richard Oriani
-
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
-
Patent number: 7446148Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.Type: GrantFiled: June 19, 2007Date of Patent: November 4, 2008Assignee: DuPont Performance Elastomers LLCInventors: George Richard Chapman, Jr., Steven Richard Oriani
-
Patent number: 7435786Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to hexafluoropropylene index (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: GrantFiled: August 16, 2006Date of Patent: October 14, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, Jr., Daniel N. Favereau, Niall D. McKee, Patricia A. Tooley
-
Publication number: 20080248418Abstract: This invention relates to processes for preparing fluoroalcohol-substituted (meth)acrylate esters. This invention also relates to block copolymers incorporating repeat units derived from fluoroalcohol-substituted (meth)acrylate esters, and photoresists derived therefrom.Type: ApplicationFiled: April 3, 2008Publication date: October 9, 2008Inventor: WILLIAM BROWN FARNHAM
-
Patent number: 7423087Abstract: The present invention relates to the reduction of oligomer content of melt-processible fluoropolymer so that the fluoropolymer has at least 25 ppm less oligomer than the as-polymerized fluoropolymer.Type: GrantFiled: April 30, 2004Date of Patent: September 9, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Gregory Allen Chapman, David E. Bidstrup
-
Publication number: 20080194764Abstract: The present invention relates to a novel fluorine-containing cyclic compound that is derived from a norbornadiene and hexafluoroacetone and has an oxacyclopentane structure. This compound may be represented by the following formula (1) or (2). Furthermore, the present invention relates to a fluorine-containing polymer compound prepared by a polymerization or copolymerization using this fluorine-containing cyclic compound or its derivative. By using such fluorine-containing polymer compound, it is possible to provide a superior resist material and a fine pattern forming process using the same.Type: ApplicationFiled: November 16, 2007Publication date: August 14, 2008Applicant: Central Glass Company LimitedInventors: Haruhiko KOMORIYA, Shinichi SUMIDA, Katsunori KAWAMURA, Satoru KOBAYASHI, Satoru MIYAZAWA, Kazuhiko MAEDA
-
Patent number: 7411020Abstract: In one aspect, the invention provides a water-based release coating composition comprising a mixture of: A. from 0.1 to about 5 wt % of a fluoro(meth)acrylate (co)polymer or a fluorochemical urethane compound containing at least one fluorinated group having the formula —CF2)nCF3, wherein n is an integer from 1 to 3; B. from about 5 to about 99.9 wt % of a copolymer comprising the reaction product of a. from about 40 to about 70 wt % of an alkyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms, b. from about 3 to about 20 wt % of (meth)acrylic acid, c. from about 20 to about 40 wt % acrylonitrile, and d. from 0 to about 15 wt % of vinyl monomer, other than acrylonitrile, wherein the sum of a. through d. equals 100%; and C. from 0 to about 94.9 wt % of an extender polymer, wherein the sum of A., B., and C. is 100% and wt % is based on the total amount of solids in the composition.Type: GrantFiled: December 28, 2004Date of Patent: August 12, 2008Assignee: 3M Innovative Properties CompanyInventors: James G. Carlson, John C. Clark, James P. DiZio, David J. Kinning, Ramesh C. Kumar, Chetan P. Jariwala
-
Patent number: 7396880Abstract: The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells.Type: GrantFiled: April 24, 2006Date of Patent: July 8, 2008Assignee: Arkema Inc.Inventors: James Goldbach, Scott Gaboury, Robert Umpleby, Julien Parvole, David Mountz
-
Patent number: 7390848Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.Type: GrantFiled: December 6, 2005Date of Patent: June 24, 2008Assignee: DuPont Performance Elastomas LLCInventors: George Richard Chapman, Jr., Steven Richard Oriani
-
Patent number: RE40516Abstract: A composite article is provided which includes a blend component comprising a vinylidene fluoride containing fluoropolymer and a substantially non-vinylidene fluoride containing fluoropolymer, and a component including a substantially non-fluorinated polymer having pendant amine groups intimately bonded to the blend component. Increased adhesion is observed by a greater peel strength value between the blend component and a substantially non-vinylidene fluoride containing fluoropolymer when compared to a peel strength value between a substantially non-vinylidene fluoride containing fluoropolymer and the substantially non-fluorinated polymer having pendant amine groups.Type: GrantFiled: September 11, 2002Date of Patent: September 23, 2008Assignee: 3M Innovative Properties CompanyInventors: Edward E. Parsonage, Thomas J. Blong