Fluorine Reactant Contains Atoms Other Than C, H, Or Hal Patents (Class 525/200)
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Patent number: 8173749Abstract: 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: GrantFiled: December 19, 2006Date of Patent: May 8, 2012Assignee: Rolic AGInventors: Thomas Bachels, Zoubair Mohammed Cherkaoui, Guy Marck, Olivier Muller, Joachim Reichardt, Andreas Schuster, Hubert Seiberle, Peggy Studer, Thomas Peglow, Jean-Francois Eckert
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Publication number: 20120077935Abstract: A curable fluorine-containing elastomer composition is described which includes a first curable perfluoropolymer comprising tetrafluoroethylene, a first perfluoroalkylvinyl ether and at least one first cure site monomer having at least one cure site, wherein tetrafluoroethylene is present in the first curable perfluoropolymer in an amount of at least about 50 mole percent; a second curable perfluoropolymer comprising tetrafluoroethylene, a second perfluoroalkylvinyl ether and at least one second cure site monomer having at least one cure site, wherein the second curable perfluoropolymer comprises fluoroplastic particles therein; and at least one curative. Cured compositions and molded articles formed from such compositions are also disclosed.Type: ApplicationFiled: September 20, 2011Publication date: March 29, 2012Applicant: Greene, Tweed of Delaware, Inc.Inventors: Eugene Gurevich, Brian Ux, Jiazhong Luo, Wonmun Choi
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Publication number: 20120076944Abstract: Blended fluoropolymer compositions are provided, in which a liquid dispersion of a first fluoropolymer is blended with a liquid dispersion of a second fluoropolymer. The first fluoropolymer may be polytetrafluoroethylene (PTFE), such as a low molecular weight PTFE (LPTFE) in the form of an aqueous dispersion having a mean particle size of less than 1.0 microns (?m) and a first melt temperature (Tm) of 332° C. or less. The second fluoropolymer may be a melt processible fluoropolymer (MPF), such as methylfluoroalkoxy (MFA), fluorinated ethylene propylene (FEP), or perfluoroalkoxy (PFA), for example, in the form of an aqueous dispersion having a mean particle size of less than 1.0 microns (?m). When the blended fluoropolymer composition is dried, a crystal structure representing a true alloy of the fluoropolymers is formed, having melt characteristics that differ from those of the individual fluoropolymers.Type: ApplicationFiled: November 15, 2011Publication date: March 29, 2012Applicant: WHITFORD CORPORATIONInventors: Leonard W. Harvey, Michael Coates, Julie K. Wright
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Patent number: 8138271Abstract: The present invention provides a crosslinkable composition being capable of providing a molded article and a sealing material for an oxygen sensor which have excellent long-term heat resistance and satisfactory compression set. Also there is provided a molded article and a sealing material for an oxygen sensor which have excellent long-term heat resistance and satisfactory compression set. The crosslinkable composition comprises (A) a compound having at least one specific crosslinkable reaction group and (B) a nonperfluoro fluorine-containing elastomer being crosslinkable with the compound (A).Type: GrantFiled: July 11, 2011Date of Patent: March 20, 2012Assignee: Daikin Industries, Ltd.Inventors: Keiko Washino, Meiten Koh, Yasuko Takagahara
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Publication number: 20120065108Abstract: Fluorinated polymeric microparticles, processes for preparing them and uses thereof as additives for fluid loss control of drilling fluids and methods of fluid loss control of drilling fluid loss with fluorinated microparticles and uses of fluoropolymers as fluid loss control agents. Said fluorinated polymeric microparticles comprise one or more repeating units derived from one or more fluorinated monomers and one or more repeating units derived from one or more acrylate monomers.Type: ApplicationFiled: June 2, 2010Publication date: March 15, 2012Inventors: Tom Opstal, Rudolf J. Dams, Rudy W. Van Campenhout, Francois C. D'Haese
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Publication number: 20120065321Abstract: A catalyst composition comprising a cation and an anion of the formula Anq?Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+ is an organo onium, and Aq? is an anion, provided that at least one Aq? is selected from the formula (I) wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R? groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R? can be the same as R, with the proviso that R? cannot be halo, and wherein the catalyst composition is essentially free of hydrocarbon containing alcohol.Type: ApplicationFiled: June 24, 2010Publication date: March 15, 2012Inventors: Werner M.A. Grootaert, Kim M. Vogel, Dennis E. Vogel
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Publication number: 20120065291Abstract: A radiation-sensitive resin composition includes a first polymer including a repeating unit represented by a following formula (I). X+ is an onium cation. X+ in the formula (I) is preferably an onium cation represented by a following formula (1-1), an onium cation represented by a following formula (1-2) or a combination thereof.Type: ApplicationFiled: October 13, 2011Publication date: March 15, 2012Applicant: JSR CorporationInventors: Nobuji Matsumura, Yukio Nishimura, Akimasa Soyano, Ryuichi Serizawa, Noboru Otsuka, Hiroshi Tomioka
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Publication number: 20120035326Abstract: A process is provided for improving the MIT flex life of tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, said perfluoroalkyl containing from 1 to 5 carbon atoms, comprising incorporating melt flowable polytetrafluoroethylene into said copolymer and thereafter heat treating the resultant composition at a temperature of at least 280° C., the amount of said polytetrafluoroethylene and said heat treatment being effective to increase the flex life of said composition by at least 2× the flex life of both said copolymer and said composition prior to said heat treatment and to thermally transform the composition in the solid state, which is epitaxial co-crystallization of the polymer components of the composition.Type: ApplicationFiled: July 29, 2011Publication date: February 9, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Jacob LAHIJANI
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Patent number: 8076431Abstract: 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 having less than about 50 ppm alkali metal ion, 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 and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: GrantFiled: July 25, 2008Date of Patent: December 13, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Patent number: 8075967Abstract: 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: GrantFiled: August 26, 2008Date of Patent: December 13, 2011Assignee: E. I. du Pont de Nemours and CompanyInventor: John Chu Chen
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Patent number: 8071255Abstract: A fuel cell comprising a proton transporting membrane is provided. The proton transporting membrane comprises a polyelectrolyte film comprising a multilayer comprising an interpenetrating network of a net positively charged polyelectrolyte polymer comprising repeat units with at least two fluorine atoms and a net negatively charged polyelectrolyte polymer comprising repeat units with at least two fluorine atoms, and further comprising a fluorinated counterion within the multilayer.Type: GrantFiled: March 19, 2010Date of Patent: December 6, 2011Assignee: Florida State University Research FoundationInventor: Joseph B. Schlenoff
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Publication number: 20110272173Abstract: It is an object of the present invention to provide a fluororesin composition which hardly causes molding defects even when high-speed molding is performed in covering extrusion molding within a relatively broad molding temperature range and which can give covered electric wires, in particular foamed electric wires, excellent in surface smoothness. A fluororesin composition comprising a polytetrafluoroethylene [PTFE] having a standard specific gravity of 2.15 to 2.30 and a tetrafluoroethylene/hexafluoropropylene-based copolymer [FEP], the content of said PTFE being 0.Type: ApplicationFiled: September 24, 2008Publication date: November 10, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Keizo Shiotsuki, Hideki Kono, kenji Ishii, Kengo Ito, Kenjiro Tanimoto, Takahiro Kitahara
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Publication number: 20110274861Abstract: Disclosed herein is a fuel management system having at least one fluororubber component in contact with fuel wherein said fluororubber component comprises i) a cured fluoroelastomer and ii) 10 to 110 parts by weight of a non-fibrillating polytetrafluoroethylene micropowder per hundred parts by weight fluoroelastomer.Type: ApplicationFiled: November 8, 2010Publication date: November 10, 2011Applicant: DUPONT PERFORMANCE ELASTOMERS LLCInventor: Ronald D. Stevens
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Patent number: 8053526Abstract: A process aid for improving the processability of non-fluorinated melt processible polymers contains a fluoroelastomer having a Mooney viscosity (ML (1+10) at 121° C.) between 30 and 100 and at least two interfacial agents, one a polycaprolactone having a Mn between 2000 and 8000 and the other a polyalkylene oxide having a Mn between 3000 and 5000.Type: GrantFiled: May 20, 2009Date of Patent: November 8, 2011Assignee: DuPont Performance Elastomers LLCInventor: Steven R. Oriani
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Publication number: 20110263793Abstract: Extrudable (per)fluoroelastomer compositions comprising crosslinkable (per)fluoroelastomers having: at least two glass transition temperatures Tg on DSC analysis, at least one melting peak on DSC analysis with a ?H of second melting of between 0.3 and 5.5 J/g, and a bimodal molecular weight distribution such that the ratio Mn1/Mn2 is between 10 and 30, wherein Mn1 represents the number-average molecular weight of the distribution of the high molecular weight fluoroelastomer and Mn2 represents the number-average molecular weight of the distribution of the low molecular weight fluoroelastomer.Type: ApplicationFiled: August 11, 2008Publication date: October 27, 2011Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Claudia Manzoni, Giovanni Comino, Milena Stanga, Margherita Albano
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Patent number: 8030405Abstract: A blend composition comprises a fluorine-containing polymer electrolyte and a fluoro-rubber. An electrolyte membrane may be prepared from the blend composition. The electrolyte membrane may be used in electrochemical cells such as electrolyzers, batteries and fuel cells.Type: GrantFiled: May 4, 2009Date of Patent: October 4, 2011Assignee: GM Global Technology Operations LLCInventors: Sean M MacKinnon, Timothy J. Fuller, Michael R. Schoeneweiss
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Publication number: 20110237751Abstract: This invention pertains to sealing articles of vulcanized (per)fluoroelastomer compositions incorporating particles of a vinylidene fluoride (VDF) polymers having a Shore A hardness of at least 85 when determined according to ASTM D 2240 Type A Durometer method, and a compression set of less than 30%, when determined according to ASTM D395 at 200° C. for 70 h on O-ring according to ASTM D1414, and to a process for their manufacture by vulcanizing-molding and thermal post-treating at a temperature above the melting point of the VDF polymer.Type: ApplicationFiled: December 3, 2009Publication date: September 29, 2011Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Milena Stanga, Claudia Manzoni, Giovanni Comino, Margherita Albano
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Publication number: 20110224377Abstract: Poly(vinyl ester) block copolymers comprising blocks of two or more different vinyl ester repeating units. The vinyl ester repeating units may be wherein R is H, C1-C22 straight or branched alkyl or alkylhalide, or phenyl or substituted phenyl, and n is 10 to 12,000. Methods of making poly(vinyl ester) block copolymers, including reversible-addition fragmentation chain transfer, organobismuthine-mediated living radical polymerization, and cobalt mediated radical polymerization. Chemically-degradable and biodegradable polymers comprising poly(vinyl ester) block copolymers.Type: ApplicationFiled: March 11, 2010Publication date: September 15, 2011Inventors: Mahesh Kalyana Mahanthappa, Corinne Elizabeth Lipscomb
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Patent number: 8008404Abstract: A composite membrane for fuel cell applications includes a support substrate with a predefined void volume. The void volume is at least partially filled with an ion conducting polymer composition. Characteristically, the ion conducting polymer composition includes a first polymer with a cyclobutyl moiety and a second polymer that is different than the first polymer.Type: GrantFiled: May 4, 2009Date of Patent: August 30, 2011Assignee: GM Global Technology Operations LLCInventors: Sean M MacKinnon, Timothy J. Fuller
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Patent number: 8003732Abstract: An ion conducting polymeric structure suitable for fuel cell applications is provided. The polymeric structure comprises a non-homogenous polymeric layer. The non-homogeneous layer is a blend of a first polymer comprising cyclobutyl moiety; and a second polymer having a non-ionic polymer segment. The weight ratio of the first polymer to the second polymer varies as a function of position within the non-homogenous layer. The blend composition may be cast into an electrolyte membrane that can be used to prepare electrochemical cells such as batteries and fuel cells.Type: GrantFiled: August 25, 2008Date of Patent: August 23, 2011Assignee: GM Global Technology Operations LLCInventors: Sean M MacKinnon, Michael R. Schoeneweiss, Timothy J. Fuller, Craig S. Gittleman
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Patent number: 7985805Abstract: A polymer blend useful as an ion conductor in fuel cells includes a first polymer having a cyclobutyl moiety and a second polymer include a sulfonic acid group.Type: GrantFiled: May 4, 2009Date of Patent: July 26, 2011Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Sean M MacKinnon, Michael R. Schoeneweiss, Craig S. Gittleman
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Publication number: 20110159252Abstract: An orthogonal process for photolithographic patterning organic structures is disclosed. The disclosed process utilizes fluorinated solvents or supercritical CO2 as the solvent so that the performance of the organic conductors and semiconductors would not be adversely affected by other aggressive solvent. One disclosed method may also utilize a fluorinated photoresist together with the HFE solvent, but other fluorinated solvents can be used. In one embodiment, the fluorinated photoresist is a resorcinarene, but various fluorinated polymer photoresists and fluorinated molecular glass photoresists can be used as well. For example, a copolymer perfluorodecyl methacrylate (FDMA) and 2-nitrobenzyl methacrylate (NBMA) is a suitable orthogonal fluorinated photoresist for use with fluorinated solvents and supercritical carbon dioxide in a photolithography process.Type: ApplicationFiled: May 21, 2009Publication date: June 30, 2011Inventors: Christopher K. Ober, George Malliaras, Jin-Kyun Lee, Alexander Zakhidov, Margarita Chatzichristidi, Priscilla Taylor
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Patent number: 7968613Abstract: The present invention relates generally to the use of talc as a chemical foaming agent in perfluoropolymers to form foamable and foamed compositions. For example, in one aspect, a foamable composition is disclosed, which comprises (i) one or more base perfluoropolymers comprising at least 50 percent by weight of the composition, and (ii) talc blended with the one or more base perfluoropolymers, where the talc comprises 3 percent to about 15 percent by weight of the composition. Each of the perfluoropolymers is selected from the group consisting of tetrafluoroethylene/perfluoromethylvinyl ether copolymer (MFA), hexafluoropropylene/tetrafluoroethylene copolymer (FEP) and perfluoroalkoxy (PFA) and any blend thereof, where hydrogen-containing fluoropolymers are absent from the composition. The one or more base perfluoropolymers are melt-processable at one or more elevated processing temperatures of at least about 600° F.Type: GrantFiled: August 1, 2008Date of Patent: June 28, 2011Inventors: Charles A. Glew, Kenneth R. Boyle, Bradley Lane Kent, Jeffrey A Hrivnak
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Patent number: 7964274Abstract: Tensile strength after heat aging of articles molded from melt-fabricable perfluoropolymer is improved by incorporating polytetrafluoroethylene as dispersed submicrometer-size particles into the melt-fabricable perfluoropolymer.Type: GrantFiled: November 16, 2006Date of Patent: June 21, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Ralph Munson Aten, Heidi Elizabeth Burch, Sharon Ann Libert
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Publication number: 20110124816Abstract: An object of the present invention is to provide a novel monolayer and multilayer film that can be employed also for use in interior and exterior members of vehicles, and that have excellent transparency, surface hardness, chemical resistance, and stain resistance such as lactic acid resistance and sunscreen resistance. The present invention is directed to a fluororesin film formed with (C) a fluororesin comprising (B) a fluorinated (meth)acrylic resin that contains a fluorine-containing alkyl(meth)acrylate polymer component; and a fuororesin-laminated acrylic resin film, wherein the fluororesin film layer is laminated on at least one face of a film layer comprising (A) an acrylic resin.Type: ApplicationFiled: June 10, 2009Publication date: May 26, 2011Applicant: KANEKA CORPORATIONInventors: Kouji Morita, Yukihiro Shimamoto, Kazuhito Wada, Taizo Aoyama
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Patent number: 7947775Abstract: Aqueous dispersions on non-melt flowable PTFE and melt-fabricable perfluoropolymer are mixed together, followed by recovery of the resultant mixture of the dispersed particles of each of these polymers, and melt mixing of the resultant mixture of particles to obtain a blend in which the PTFE particles form the disperse phase and the perfluoropolymer forms the continuous phase, the melt mixing producing advantageous melt viscosities and the blend exhibiting advantageous physical properties even at high PTFE contents of about 30 wt %.Type: GrantFiled: September 29, 2009Date of Patent: May 24, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Sundar Kilnagar Venkataraman, Ralph Munson Aten, Heidi Elizabeth Burch
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Publication number: 20110086229Abstract: The present invention includes crosslinked perfluoroelastomeric compositions and molded articles formed from a cross-linkable perfluoroelastomeric composition having a first curable perfluoropolymer having a cure site monomer and a second perfluoropolymer having a cure site monomer. The molar ratio of the tetrafluoroethylene monomer to perfluoroalkylvinyl ether in one perfluoropolymer is about 0 to 100 to about 65 to 35 in the perfluoropolymer. The molar ratio of the tetrafluoroethylene monomer to the perfluoroalkylvinyl ether monomer in the second polymer is about 65:35 to about 95:5 in the second perfluoropolymer. The composition further includes a curative.Type: ApplicationFiled: December 15, 2010Publication date: April 14, 2011Applicants: Greene, Tweed of Delaware, Inc., Daikin Industries, Ltd.Inventors: Tsuyoshi Noguchi, Jiazhong Luo, Tatsuya Morikawa, Hirokazu Komori, Takafumi Yamato, Meiten Koh
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Publication number: 20110033647Abstract: The present invention relates to (i) novel fluoroionic compounds capable of dispersing particulate filler compositions into a fluoropolymer; (ii) novel particulate compositions in which particulates are surface-functionalized with a fluoroionic compound; (iii) fluoropolymer composite materials containing the surface-functionalized particulates of (ii) incorporated into a fluoropolymer; (iv) crosslinked versions of (iii); v) methods for producing the crosslinked material of (iv); and (vi) articles of manufacture containing the compositions (iii) and (iv).Type: ApplicationFiled: April 6, 2009Publication date: February 10, 2011Applicant: The Research Foundation of State University of New YorkInventors: Benjamin S. Hsiao, Benjamin Chu, Jie Wei, Hongyang Ma, Feng Zuo
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Patent number: 7875661Abstract: An intraocular lens with an ordered polymer system contained within a lens capsule or a membrane in the lens capsule. The ordered polymer system includes at least one negatively charged copolymer comprising hydrophilic groups, anionic groups and hydrophobic groups, and at least one positively charged copolymer comprising hydrophilic groups, cationic groups and hydrophobic groups. The at least one negatively charged copolymer and the at least one positively charged copolymer are associatively arranged through non-covalent interactions in the lens capsule or the membrane.Type: GrantFiled: December 11, 2007Date of Patent: January 25, 2011Assignee: Bausch & Lomb IncorporatedInventor: Joseph C. Salamone
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Publication number: 20110015342Abstract: To provide a fluorinated elastic copolymer having high crosslinkability, having high flowability and excellent in the compression set and the resistance to bases, and its production process. A process for producing a fluorinated elastic copolymer, which comprises copolymerizing (a) tetrafluoroethylene and (b) propylene and as the case requires, (c) a perfluoro(alkyl vinyl ether) in the presence of an iodine compound represented by the formula RI2 (wherein R is a hydrocarbon group or perfluoroalkyl group having at least 3 carbon atoms) at a temperature of from 0° C. to 50° C., and a fluorinated elastic copolymer obtained by the production process.Type: ApplicationFiled: September 28, 2010Publication date: January 20, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takehiro KOSE, Mitsuru Seki, Hiroshi Funaki, Yasuhiko Matsuoka
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Patent number: 7868089Abstract: The invention provides a thermoplastic polymer composition which has both excellent heat resistance and chemical resistance, and also has flexibility and excellent processability. The present invention is a thermoplastic polymer composition comprising a fluororesin (A) and non-fluorine-containing cured rubber (B), wherein the fluororesin (A) comprises a fluorine-containing ethylenic polymer (a), and the non-fluorine-containing cured rubber (B) is at least one kind of rubber (b) which is at least partially crosslinked.Type: GrantFiled: May 16, 2005Date of Patent: January 11, 2011Assignee: Daikin Industries Ltd.Inventors: Haruhisa Masuda, Tsuyoshi Ono
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Publication number: 20100324222Abstract: This invention relates to curable fluoroelastomer compositions comprising a) fluoroelastomers having either nitrile, alkyne or azide cure sites and b) fluorinated curatives containing diazide, dinitrile or dialkyne groups for reacting with cure sites on the fluoroelastomer. Fluoroelastomers having azide cure sites form crosslinks with curatives having dinitrile or dialkyne groups. Fluoroelastomers having nitrile or alkyne cure sites form crosslinks with curatives having diazide groups.Type: ApplicationFiled: June 17, 2009Publication date: December 23, 2010Applicants: DUPONT PERFORMANCE ELASTOMERS L.L.C., LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: MING-HONG HUNG, Bruno Ameduri, Guillaume Tillet
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Patent number: 7855254Abstract: The invention pertains to a multi-phase thermoplastic fluoropolymer composition, comprising a thermoplastic fluoropolymer and discrete domains of melt-processable perfluoropolymer, to the articles therefrom and to a process for manufacturing thermoplastic fluoropolymer compositions. The multi-phase thermoplastic fluoropolymer composition comprises: —at least one thermoplastic fluoropolymer (A); and —from 0.1 to 10% by weight of (A) of at least one melt-processible perfluoropolymer (B), and is characterized in that the polymer (B) is present in the composition in phase-separated domains in a continuous phase mainly comprising (A), at least 75% by volume of said domains having maximal dimension not exceeding 1 ?m. The process of the invention comprises mixing: (i) a thermoplastic fluoropolymer (A); (ii) a melt-processible perfluoropolymer (B) under the form of particles having an average primary particle size not exceeding 300 nm; (iii) and optionally other additives or filling materials.Type: GrantFiled: April 25, 2006Date of Patent: December 21, 2010Assignee: Solvay Solexis S.p.A.Inventors: Julio A. Abusleme, Claudia Manzoni, Giambattista Besana
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Patent number: 7851555Abstract: A gasket material comprising polytetrafluoroethylene (PTFE) and a thermoplastic polymer have 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 weigh to the gasket material.Type: GrantFiled: December 2, 2009Date of Patent: December 14, 2010Assignee: Garlock Sealing Technologies LLCInventors: Jarod R. Hammar, Erik Phelps, Stefan Pitolaj
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Publication number: 20100311909Abstract: Vulcanizable fluoroelastomer compositions comprising: A) a fluoroelastomer matrix based on vinylidene fluoride (VDF) with a Mooney viscosity (1+10) at 121° C. of less than 35 MU (Mooney Units) measured according to ASTM standard D 1646; and B) a semi-crystalline fluoropolymer, in an amount of from 20% to 70% by weight relative to the total weight of A)+B), the semi-crystalline fluoropolymer being constituted of tetrafluoroethylene (TFE) homopolymers and copolymers of TFE with one or more monomers containing at least one unsaturation of ethylenic type, in an amount of from 0.01 to 10 mol %, said semi-crystalline fluoropolymer having a mean particle size between 10 and 400 nm.Type: ApplicationFiled: November 20, 2008Publication date: December 9, 2010Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Giovanni Comino, Claudia Manzoni, Milena Stanga, Margherita Albano
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Patent number: 7842765Abstract: The present invention provides a vinyl fluoride copolymer comprising: about 40 to about 90 mole % of repeat units derived from vinyl fluoride; and about 10 to about 60 mole % of repeat units derived from monomer selected from the group consisting of (a) and (b) below and mixtures thereof, with the proviso that about 0.1 mole % to 50 mole % of repeat units in the copolymer are derived from monomer selected from (b): (a) monomer selected from the group consisting of, tetrafluoroethylene, trifluoroethylene, chlorotrifluoroethylene and mixtures thereof; and (b) vinyl monomer containing at least one functional group selected from the group consisting of hydroxyls, thiols, carbonyls, carboxylic acids, carboxylic esters, acid anhydrides, sulfonyls, sulfonic acids, sulfonic esters, phosphoric acids, phosphoric esters, boric acids, boric esters, epoxies, isocyanates, thiocyanates, amines, amides, nitriles and halogen selected from bromide and iodide.Type: GrantFiled: December 21, 2007Date of Patent: November 30, 2010Assignees: E. I. du Pont de Nemours and Company, Dupont-Mitsui Fluorochemicals Co LtdInventors: Ronald Earl Uschold, Jian Wang, Masahiro Yamamoto
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Patent number: 7834097Abstract: 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: GrantFiled: January 15, 2007Date of Patent: November 16, 2010Assignee: Solvay Solexis S.p.A.Inventors: Margherita Albano, Milena Stanga, Francesco Triulzi
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Publication number: 20100224066Abstract: There is provided herein a dryer polymer substance including a hetero-phase polymer composition including two or more polymers wherein at least one of the two or more polymers include sulfonic groups, wherein the substance is adapted to pervaporate a fluid. The fluid may include water, water vapor or both. There is also provided herein a process for the preparation of a dryer polymer substance adapted to pervaporate a fluid (such as water, water vapor or both) the process includes mixing two or more polymers, wherein at least one of the two or more polymers may include groups which are adapted to be sulfonated, to produce a hetero-phase polymer composition and processing the polymer blend into a desired form.Type: ApplicationFiled: March 3, 2009Publication date: September 9, 2010Inventors: Amos Ophir, Eyal Cohen, David Dishon, Joshua Lewis Colman
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Patent number: 7781529Abstract: 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: June 18, 2008Date of Patent: August 24, 2010Assignee: Arkema Inc.Inventors: James T. Goldbach, David A. Mountz
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Patent number: 7781602Abstract: 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: GrantFiled: November 16, 2007Date of Patent: August 24, 2010Assignee: Central Glass Company, LimitedInventors: Haruhiko Komoriya, Shinichi Sumida, Katsunori Kawamura, Satoru Kobayashi, Satoru Miyazawa, Kazuhiko Maeda
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Publication number: 20100197861Abstract: A fluoropolymer molding process is provided for molding a mixture of at least two of fluoropolymers having different melting points at a temperature that is at or above the melting point of the fluoropolymer with the lowest melting point and is less than the melting point of the fluoropolymer with the highest melting point, and the resultant fluoropolymer molded product has excellent resistance to chemical and gas permeation and a low coefficient of linear expansion.Type: ApplicationFiled: April 6, 2010Publication date: August 5, 2010Applicant: DUPONT-MITSUI FLUOROCHEMICALS CO LTDInventor: Takao Nishio
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Patent number: 7767764Abstract: 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: GrantFiled: January 15, 2007Date of Patent: August 3, 2010Assignee: Solvay Solexis S.p.A.Inventors: Milena Stanga, Francesco Triulzi, Margherita Albano
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Patent number: 7767763Abstract: 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 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: GrantFiled: January 15, 2007Date of Patent: August 3, 2010Assignee: Solvay Solexis S.p.A.Inventors: Francesco Triulzi, Margherita Albano, Milena Stanga
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Patent number: 7763680Abstract: Core/shell polymer is provided wherein the core comprises non-melt flowable PTFE and the shell comprises melt-fabricable perfluoropolymer, the core/shell polymer providing a thixotropic melt blend and improved physical properties as compared to the melt-fabricable perfluoropolymer by itself.Type: GrantFiled: November 16, 2006Date of Patent: July 27, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Ralph Munson Aten, Heidi Elizabeth Burch, Sundar Kilnagar Venkataraman
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Publication number: 20100179287Abstract: To provide a water/oil repellent composition which can impart water/oil repellency with excellent friction durability to a surface of an article, even though while having structural units based on a monomer having an Rf group having at most 6 carbon atoms, structural units based on a monomer having an Rf group having at least 8 carbon atoms are reduced as much as possible, and an article which has little impact on environment and is less susceptible to deterioration of water/oil repellency by friction.Type: ApplicationFiled: March 25, 2010Publication date: July 15, 2010Applicant: Asahi Glass Company, LimitedInventors: Kazunori Sugiyama, Yuuichi Oomori, Minako Shimada
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Publication number: 20100173093Abstract: Antireflective film articles and low refractive index coating compositions are described that comprises a fluorinated free-radically polymerizable polymeric (e.g. intermediate) material. The free-radically polymerizable fluorinated polymeric intermediate comprises the reaction product of i) at least one multi-functional free-radically polymerizable material having a fluorine content of at least 25 wt-%, and ii) optionally other multi-functional free-radically polymerizable material. The total amount of multi-functional materials is preferably at least about 25 wt-%.Type: ApplicationFiled: May 4, 2007Publication date: July 8, 2010Inventors: Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, Suresh Iyer, Zai-Ming Qiu
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Patent number: 7750093Abstract: The present invention relates to fluorochemical polyurethane compounds, a method for their preparation, a method of application, and compositions comprising that fluorochemical polyurethane compound. The compound and the composition comprising that compound are suitable to impart durable oil- and water-repellency to substrates.Type: GrantFiled: June 29, 2006Date of Patent: July 6, 2010Assignee: 3M Innovative Properties CompanyInventors: Cheryl L. S. Elsbernd, Frans A. Audenaert, John C. Clark, Chetan P. Jariwala, George G. I. Moore, Zai-Ming Qiu
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Publication number: 20100168337Abstract: A topcoat material for immersion lithography and a method of performing immersion lithography using the topcoat material. The topcoat material includes a mixture of a first polymer and a second polymer. The first and second polymers of the topcoat material, when the topcoat material is formed into a topcoat layer between an immersion fluid and a photoresist layer, disperse non-homogenously throughout the topcoat layer.Type: ApplicationFiled: January 14, 2010Publication date: July 1, 2010Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Robert D. Allen, Phillip Brock, Daniel P. Sanders, Linda K. Sundberg
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Publication number: 20100168318Abstract: It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.Type: ApplicationFiled: March 14, 2008Publication date: July 1, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Romain Severac, Martial Jean-Jacques Pabon, Isabelle Deguerry, Guillaume Gamblin
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Publication number: 20100148130Abstract: A composition for a circuit connection film and a circuit connection film using the same, the composition including a binder resin including an acrylate modified urethane resin, a carboxyl modified acrylonitrile butadiene rubber, and an acrylic copolymer, the acrylic copolymer having an acid value of about 1 to about 100 mg KOH/g, a radical polymerizable compound including at least one of an isocyanurate acrylate compound and a compound having a (meth)acrylate group, and an organic peroxide.Type: ApplicationFiled: December 10, 2009Publication date: June 17, 2010Inventors: Hyun Hee Namkung, Kyoung Soo Park, Bong Yong Kim, Kang Bae Yoon, Sang Sik Bae, Hyun Joo Seo