Fluorine Reactant Contains Atoms Other Than C, H, Or Hal Patents (Class 525/200)
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Patent number: 12240988Abstract: Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, where at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 106 main-chain carbon atoms, and where the coating composition further contains an inorganic filler, a surfactant, and a liquid medium.Type: GrantFiled: November 20, 2023Date of Patent: March 4, 2025Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yuki Ueda, Shingo Okuno, Akiyoshi Yamauchi, Yoshihiro Souda, Yasukazu Nakatani
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Patent number: 12145300Abstract: Provided is a method for testing a melt-fabricable fluororesin injection-molded article which enables easy determination of whether or not a tested article is a defective article due to a crack or delamination. The method for testing a melt-fabricable fluororesin injection-molded article includes determining whether or not a melt-fabricable fluororesin injection-molded article is defective due to a crack or delamination based on a stress-strain curve or tensile strength-strain curve obtained by a tensile test performed on the injection-molded article.Type: GrantFiled: June 17, 2019Date of Patent: November 19, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takahisa Aoyama, Hayato Tsuda, Yuuki Kuwajima
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Patent number: 12060479Abstract: Disclosed is a thermoplastic elastomer composition comprising a blend of at least two fluoropolymers. The first fluoropolymer has from 0 to 30 weight percent of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof. The second fluoropolymer has at least 30 weight percent, preferably at least 35 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof.Type: GrantFiled: December 5, 2019Date of Patent: August 13, 2024Assignee: ARKEMA INC.Inventors: Adam W. Hauser, Mathieu Y. Capelot, Florence Mehlmann, Gregory S. O'Brien
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Patent number: 12024575Abstract: Co-cured blends of fluoroelastomers of tetrafluoroethylene-propylene copolymer with cure site monomer and terpolymers of Vinylidene fluoride (VDF), Hexafluoropropylene (HFP) and Tetrafluoroethylene (TFE) with peroxide as initiator and coagent TAIC as crosslinker show improved curing performance, improved mechanical properties and improved compression set as well. The co-cured fluoroelastomers show improved chemical resistance to the solvent aging systems and better retention of mechanical properties after aging at high temperature in the solvents system.Type: GrantFiled: November 11, 2022Date of Patent: July 2, 2024Assignees: CNPC USA CORPORATION, Beijing Huamel Inc., CHINA NATIONAL PETROLEUM CORPORATIONInventors: Peixiang Xing, Jiaxiang Ren, Peng Cheng, Yu Liu, Yonghong Wang
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Patent number: 11932755Abstract: The invention in relates in particular to a rubber composition able to be extruded to form an inner layer of a fuel hose for a motor vehicle, a method for preparing this composition, this hose and a fuel feed circuit of a motor vehicle incorporating it. This composition is based on at least one fluoroelastomer (FKM) and includes a filler and a micronised powder of at least one fluorinated thermoplastic polymer which are dispersed in said at least one fluoroelastomer. According to the invention, the composition includes said micronised powder according to a quantity greater than 20 phr (phr: parts by weight per 100 parts of elastomer(s)), and the filler includes at least one inorganic filler having lamellas which has an aspect ratio greater than 30 and which is based on a phyllosilicate chosen from kaolinite and micas, or is based on a talc.Type: GrantFiled: April 2, 2020Date of Patent: March 19, 2024Assignee: HUTCHINSONInventors: Elise Laborbe, Mélissande Bichat, Antoine Pichon, Laurent Delas
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Patent number: 11931977Abstract: A method of fabricating a multi-core polymer optical fibre comprises arranging optical fibre preforms in a stack, the optical fibre preforms each comprising a polymer core and polymer cladding surrounding the polymer core; and drawing and bonding the stack to form the multi-core polymer optical fibre. Any contaminants or impurities which collect on outer surfaces of the preforms may be confined to boundaries between the preforms, which may avoid attenuation of signals passed through the cores while at the same time reducing crosstalk between cores of the final manufactured fibre. Also provided is a multi-core polymer optical fibre obtainable by the method.Type: GrantFiled: March 31, 2022Date of Patent: March 19, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Paolo Costa, Gilberto Brambilla, Kai Shi, Hitesh Ballani, Richard James Baca
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Patent number: 11926753Abstract: A fluororesin material including a melt-fabricable fluororesin, the fluororesin material having a dielectric constant of 2.1 or less and a dielectric loss tangent of 0.00030 or less at 12 GHz. Also disclosed is a fluororesin material for high-frequency transmission including the fluororesin material and a coated electric wire for high-frequency transmission including a solid insulating coating layer made of the fluororesin material.Type: GrantFiled: February 13, 2019Date of Patent: March 12, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Hitoshi Imamura, Masahiro Kondo
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Patent number: 11865758Abstract: A PFA molded article of a copolymer (PFA) of tetrafluoroethylene (TFE) and perfluoro(alkylvinyl ether) (PAVE), the content of the PAVE therein being from 1 to 10% by mol, characterized in that the PFA molded article has a flex life value of not less than 2,000,000 times, a zero shear viscosity of from 10,000 to 20,000 Pa·s, and a heating weight loss of not more than 0.05% by weight, and a process for the production thereof. The PFA molded article has a high flex life value, a low heating weight loss and a low zero share viscosity yet maintaining excellent mechanical properties such as tensile strength, etc., and can be produced in good yields.Type: GrantFiled: June 26, 2017Date of Patent: January 9, 2024Assignee: CHEMOURS-MITSUI FLUOROPRODUCTS CO. LTD.Inventors: Hitomi Nishimura, Takahiro Nishimura, Bangjia Lin
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Patent number: 11851556Abstract: The invention pertains to a composition based on a fluoroelastomer comprising nitrile or carboxylate-type cure sites and including a curing agent and a Br-containing marker having reactivity towards the said cure-sites, which can be cured so as to deliver cured parts maintaining chemically bound bromine atoms; this material, when submitted to wear/damage would hence release Br-containing contaminants, which can easily spotted via notably an on-line mass spectrometer, so as to monitor and anticipate critical failures of sealing materials based there upon.Type: GrantFiled: August 19, 2021Date of Patent: December 26, 2023Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Stefano Bossolo, Marco Avataneo, Stefano Millefanti, Michael J. Cox
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Patent number: 11702494Abstract: This disclosure provides a fluorine-containing mixture and a fluorine-containing super-oleophobic microporous membrane using the fluorine-containing mixture as a raw material, as well as preparation methods and applications for the fluorine-containing mixture and the fluorine-containing super-oleophobic microporous membrane. The fluorine-containing mixture of the present disclosure comprises, by weight percentage, the following components: Component A: 50%˜90%; Component B: 3%˜25%; Component C: 0%˜35%; Component D: 0%˜3%; wherein Component A comprises high molecular weight polytetrafluoroethylene homopolymer or copolymer dispersion resin; Component B comprises one or more fluorine-containing alkyl acrylate monomers; Component C comprises one or more fluorine-free acrylates; Component D comprises high temperature free radical initiator.Type: GrantFiled: April 4, 2018Date of Patent: July 18, 2023Assignee: Zhejiang Hyproof Technology Co., LtdInventors: Huisheng Wu, Ying Yang
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Patent number: 11566139Abstract: The present invention is directed to coated articles demonstrating a transmission of electromagnetic radiation having a frequency of 22 to 81 GHz in the range of 70% to 100%. The articles comprise substrates coated with curable film-forming compositions comprising a first film-forming polymer prepared from at least one hydrophobic monomer, a second film-forming polymer prepared from at least one hydrophobic monomer, and a curing agent. Upon application of the curable film-forming composition to the substrate to form a coating layer, the first film-forming polymer is distributed throughout the coating layer, and the concentration of the second film-forming polymer is greater at the surface of the coating layer than the concentration of the second film-forming polymer within the bulk of the coating layer. The present invention is also drawn to methods of mitigating contaminant build-up on a substrate using the curable film-forming compositions described above.Type: GrantFiled: October 2, 2020Date of Patent: January 31, 2023Assignee: PPG Industries Ohio, Inc.Inventors: Daniel F. Moyano, Shanti Swarup, Matthew S. Luchansky, Xiangling Xu, Kristen Kruszewski
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Patent number: 11560910Abstract: The invention relates to a method for installing metallic fastener (10; 40) for the interference fit assembly of at least two structural elements (20, 22) comprising a through hole, the fastener comprising an enlarged head (12; 42), a shaft (14; 44) having an external diameter before installation that is greater than an internal diameter of the hole, said shaft comprising a conductive surface (26; 56). Before installation, at least the conductive surface (26; 56) is coated with a lubricating layer (30), which comprises a mixture of at least one polyolefin and one polytetrafluoroethylene, for example, having sufficient adherence to prevent its abrasion by manual manipulation of the fastener and being weak enough to be at least partly stripped from the conductive surface during the interference fit assembly of the fastener. The invention is applicable to the assembly of aircraft structures.Type: GrantFiled: January 14, 2020Date of Patent: January 24, 2023Assignee: LISI AEROSPACEInventors: Laurent Bourges, Johan Stephan, Christophe Van Daele
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Patent number: 11001667Abstract: In one aspect, oligomeric and polymeric species are described herein exhibiting new architectures and associated properties. In some embodiments, such species are synthesized by oligomerization or polymerization of diene monomer via cycloaddition in the presence of a transition metal complex. Oligomers described herein, for example, comprise cyclobutane units in the oligomer backbone. Similarly, a polymers described herein comprise cyclobutane units in the polymer backbone.Type: GrantFiled: January 4, 2019Date of Patent: May 11, 2021Assignee: THE TRUSTEES OF PRINCETON UNIVERSITYInventors: Paul J. Chirik, C. Rose Kennedy, Sarah Tondreau
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Patent number: 10836893Abstract: A fluoroelastomer compound comprising at least one co-agent and at least one chemical entity comprising: (1) an azo functional group or (2) an oxazoline functional group, when cured into an article using a peroxide curing agent, the article exhibits no visible particles on the article surface when viewed at a magnification of 500 times that of an unmagnified image.Type: GrantFiled: December 7, 2015Date of Patent: November 17, 2020Assignee: DUPONT POLYMERS, INC.Inventors: Peter A. Morken, Amiya Ratan Tripathy
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Patent number: 10519350Abstract: A copolymer that includes first divalent units having a pendent ultraviolet absorbing group, second divalent units represented by formula (I):, and third divalent units represented by formula (II):. Each R1 is independently hydrogen or methyl; R2 is a straight-chain or branched alkyl having from 1 to 20 carbon atoms; V is O or NH; W is alkylene having from 1 to 10 carbon atoms; and each R? is independently alkyl having from 1 to 6 carbon atoms. Compositions including the copolymer, for example, pressure sensitive adhesive compositions are disclosed. Articles including the compositions are disclosed. For example, an assembly including a barrier film and the pressure sensitive adhesive composition is also disclosed.Type: GrantFiled: June 23, 2016Date of Patent: December 31, 2019Assignee: 3M Innovative Properties CompanyInventors: David B. Olson, Diane North, Patricia M. Savu, Eric M. Peterson
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Patent number: 10265927Abstract: The present invention provides a transparent electroconductive layer-equipped cover element having a pressure-sensitive adhesive sheet preliminarily laminated thereto, wherein the pressure-sensitive adhesive sheet comprises a pressure-sensitive adhesive layer in which a refractive index adjustment zone having a refractive index greater than that of a base pressure-sensitive adhesive material thereof is formed over a given range from a surface of the pressure-sensitive adhesive layer in a thickness direction thereof, whereby: in a lamination process of a customer which is a supply destination of the transparent electroconductive layer-equipped cover element, it becomes possible to eliminate a need to distinguish between obverse and reverse sides of the pressure-sensitive adhesive sheet itself; and, when the transparent electroconductive layer-equipped cover element is bonded to an optical element through the pressure-sensitive adhesive layer, it becomes possible to suppress internal reflection in a laminate foType: GrantFiled: July 11, 2016Date of Patent: April 23, 2019Assignee: NITTO DENKO CORPORATIONInventors: Hirofumi Katami, Atsushi Yasui
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Patent number: 9988476Abstract: The invention mainly pertains to a process for heat treating a composition [composition (C)] which contains at least one melt-processible perfluoropolynner [polymer (F)] formed of tetrafluoroethylene (TFE) copolymer with one or more perfluorinated comonomers [comonomer (F)] containing at least one unsaturation of ethylene type in amounts from 0.5% to 13% by weight, preferably from 0.6% to 11% by weight, and more preferably from 0.8% to 9% by weight; the process comprising at least the step of heat-treating the composition (C) at a temperature of at least 260° C. and in the absence of a melt flowable polytetrafluoroethylene. The invention is also related to a melt-processible perfluoropolynner [polymer (F1)] formed of tetrafluoroethylene (TFE) copolymer with one or more perfluorinated comonomers [comonomer (F)] containing at least one unsaturation of ethylene type in amounts from 0.5% to 13% by weight, preferably from 0.6% to 11% by weight, and more preferably from 0.Type: GrantFiled: December 2, 2013Date of Patent: June 5, 2018Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Pasqua Colaianna, Valeriy Kapelyushko, Marco Mirenda
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Patent number: 9765235Abstract: The present invention relates to a copolymer for the photoalignment of liquid crystals comprising a photoreactive group as given below in formula (I), compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).Type: GrantFiled: July 24, 2012Date of Patent: September 19, 2017Assignee: ROLIC AGInventors: Jean-Francois Eckert, Satish Palika, Andreas Schuster
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Patent number: 9676909Abstract: The present invention pertains to a process for the manufacture of a grafted fluoropolymer [polymer (Fg)], said process comprising reacting: A) at least one fluoropolymer comprising at least one functional group selected from the group consisting of a hydroxyl group and a carboxylic acid group [polymer (F)], B) at least one polyoxyalkylene (POA) of formula (I): RB—(CH2—O)x—(CH2CHRAO)n—(CH2—O)x?—RC, wherein at least one of RB and RC is a reactive group comprising at least one heteroatom selected from oxygen and nitrogen different from the hydroxyl group, the remaining, if any, being a —[O]z—CH3 alkyl group, wherein z is 0 or 1, RA is a hydrogen atom or a C1-C5 alkyl group, x and x?, equal to or different from each other, are independently 0 or 1, and n is an integer comprised between 2 and 1000, preferably between 5 and 200, C) optionally, in the presence of at least one catalyst, and D) optionally, in the presence of at least one organic solvent (S).Type: GrantFiled: December 17, 2013Date of Patent: June 13, 2017Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Ivan Wlassics, Roberto Biancardi, Pasquale Campanelli, Emanuele Di Nicolo', Aldo Sanguineti, Claudio Adolfo Pietro Tonelli
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Patent number: 9416234Abstract: There is provided a crosslinkable fluorine-containing rubber composition being capable of giving a fluorine-containing rubber crosslinked and molded article having a low friction coefficient and assuring an increased proportion of a fluorine-containing resin around the surface of a fluorine-containing rubber, a molded article obtained by crosslinking the composition, and a method for producing the molded article. The crosslinkable fluorine-containing rubber composition comprises a fluorine-containing rubber (A) comprising vinylidene fluoride unit, a fluorine-containing resin (B) and a polyol crosslinking agent (C), wherein the fluorine-containing rubber (A) and the fluorine-containing resin (B) are kneaded at a temperature of not less than a temperature being lower by 5° C. than the melting point of the fluorine-containing resin (B).Type: GrantFiled: September 7, 2009Date of Patent: August 16, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Kohei Takemura, Tomihiko Yanagiguchi, Kazuyoshi Kawasaki
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Patent number: 9376523Abstract: Copolymers comprising a block of polyvinyl alcohol) and a block of a polyvinyl ester. Copolymers comprising a block of polyvinyl haloalkanoate) and a block of a polyvinyl ester). Methods of making copolymers comprising a block of polyvinyl alcohol) and a block of a polyvinyl ester. Methods of making copolymers comprising a block of polyvinyl haloalkanoate) and a block of a polyvinyl ester). The copolymers may be incorporated into aqueous dispersions to form micelles or hydrogels. Some copolymers are biodegradable and have surfactant properties.Type: GrantFiled: September 2, 2010Date of Patent: June 28, 2016Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATIONInventors: Mahesh Kalyana Mahanthappa, Corinne Elizabeth Lipscomb, Milton Repollet-Pedrosa
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Patent number: 9340719Abstract: It is possible to obtain a porous substrate having a water/oil repellent-treated surface and a moisture-permeable waterproofing film, which has favorable water/oil repellency and wash durability, through which penetration of a coating liquid for formation of the moisture-permeable waterproofing film is suppressed, and from which peeling of the moisture-permeable waterproofing film is suppressed. A water/oil repellent composition comprising a copolymer (A) having from 60 to 95 mass % of units based on a monomer having a RF group having at most 6 carbon atoms and from 5 to 40 mass % of units based on vinylidene chloride, a copolymer (B) having from 50 to 95 mass % of units based on a halogenated olefin and from 5 to 50 mass % of units based on a monomer having a crosslinkable functional group, and a medium (C), wherein the proportion of the copolymer (A) is from 70 to 90 mass %, and the proportion of the copolymer (B) is from 10 to 30 mass %.Type: GrantFiled: February 2, 2015Date of Patent: May 17, 2016Assignee: Asahi Glass Company, LimitedInventors: Minako Shimada, Yuuichi Oomori
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Patent number: 9040596Abstract: An ion conducting membrane for fuel cells involves coupling a compound having a sulfonic acid group with a polymeric backbone. Each of the compounds having a sulfonic acid group and the polymeric backbone are first functionalized with a halogen.Type: GrantFiled: December 28, 2011Date of Patent: May 26, 2015Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss
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Compositions comprising melt-processable thermoplastic fluoropolymers and methods of making the same
Patent number: 9029477Abstract: A composition comprising a first fluoropolymer and a second fluoropolymer. The first and second fluoropolymers are melt-processable, thermoplastic and have a melting point between 100° C. and 320° C. The first fluoropolymer has a relaxation exponent of from 0.93 to 1.0. The second fluoropolymer has a relaxation exponent of from 0.3 to 0.92. A composition comprising a first fluoropolymer having a long chain branching index of from 0 to 0.1 and a second fluoropolymer having a long chain branching index of at least 0.2. A composition comprising a core-shell polymer having a first polymer portion, wherein a polymer having an identical chemical structure as the first polymer portion has a relaxation exponent of from 0.93 to 1.0, and a second fluoropolymer portion, wherein a polymer having an identical chemical structure as the second fluoropolymer portion has a relaxation exponent of from 0.3 to 0.92. Methods for making compositions and methods of making articles from compositions.Type: GrantFiled: March 3, 2006Date of Patent: May 12, 2015Assignee: 3M Innovative Properties CompanyInventors: Harald Kaspar, Klaus Hintzer -
Patent number: 9018309Abstract: 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: GrantFiled: September 20, 2011Date of Patent: April 28, 2015Assignee: Greene, Tweed Technologies, Inc.Inventors: Eugene Gurevich, Brian Ux, Jiazhong Luo, Wonmun Choi
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Publication number: 20150111031Abstract: A tetrafluoroethylene (TFE) copolymer film having a first endotherm between about 50° C. and about 300° C., a second endotherm between about 320° C. and about 350° C., and a third endotherm between about 350° C. and about 400° C. is provided. In exemplary embodiments, the third endotherm is approximately 380° C. In some embodiments, the second endotherm is between about 320° C. and about 330° C. or between about 330° C. and about 350° C. TFE copolymer films have a methane permeability less than about 20 ?g*micron/cm2/min. In addition, the dense articles have a void volume of less than about 20%. Methods for dense articles from core shell tetrafluoroethylene copolymers are also provided. The dense articles exhibit improved physical and mechanical properties such as adhesion and barrier properties.Type: ApplicationFiled: December 19, 2014Publication date: April 23, 2015Inventors: Lawrence A. Ford, Michael E. Kennedy, Shaofeng Ran, Todd S. Sayler, Gregory J. Shafer
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Patent number: 9000069Abstract: The present invention relates to coating compositions formed by combining two latex resins: a base latex resin and a stratifying latex resin. The stratifying latex resin comprises at least one “driver” to promote migration of the stratifying latex to the surface of the coating during curing or drying. Drivers may be selected from one or more of fluorine containing monomers incorporated into the stratifying latex, long chain acrylate monomers, such as lauryl methacrylate, wax, small particle size, or relatively low Tg.Type: GrantFiled: July 1, 2011Date of Patent: April 7, 2015Assignee: The Sherwin-Williams CompanyInventors: Peter J. Mackulin, Randolph B. Krafcik, Benjamin M. Borns, Jyotindra K. Doshi, Wendy Zhao
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Publication number: 20150024216Abstract: A fluoropolymer composition is provided containing a polymer containing perfluoroolefin units or partially fluorinated olefin units or a combination thereof, polytetrafluoroethylene having a melting point a melting point of 200° C. or more and 300° C. or less, and a crosslinking agent or a crosslinking promoter or a combination thereof. A molded article having a polytetrafluoroethylene layer on a surface is also provided.Type: ApplicationFiled: February 14, 2013Publication date: January 22, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventor: Noriyuki Usami
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Publication number: 20140378594Abstract: Described herein is a melt-processible polymer composition comprising: a non-fluorinated melt-processible polymer; and a fluoropolymer derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of: (a) CX1X3?CX2—(R)p—CZ1Z2—SO2M Formula (I) (b) Formula (II); and (c) combinations thereof, wherein X1, X2, and X3 are each independently selected from H, F, Cl, a C1 to C4 alkyl group, and a C1 to C4 fluorinated alkyl group; R is a linking group; Z1 and Z2 are independently selected from F, CF3, and a perfluoroalkyl group; R1 and R2 are end-groups; p is 0 or 1; m is at least 2; and M is a cation.Type: ApplicationFiled: December 11, 2012Publication date: December 25, 2014Inventors: Claude Lavallée, Gregg D. Dahlke, Denis Duchesne, Tatsuo Fukushi, Werner M.A. Grootaert, Miguel A. Guerra, Zai-Ming Qiu
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Publication number: 20140378616Abstract: A crosslinkable fluororubber composition containing: a fluororubber (A); and a fluororesin (B), wherein the fluororesin (B) is a copolymer (B1) consisting of tetrafluoroethylene units (a) and hexafluoropropylene units (b) or a copolymer (B2) containing tetrafluoroethylene units (a), hexafluoropropylene units (b), and polymerized units (c) derived from a monomer copolymerizable with tetrafluoroethylene and hexafluoropropylene, the copolymer (B1) satisfies the condition that the ratio (a)/(b) is (80.0 to 87.3)/(12.7 to 20.0) on a molar basis, and the copolymer (B2) satisfies the condition that the ratio (a)/(b) is (80.0 to 90.0)/(10.0 to 20.0) on a molar basis, and the ratio (c)/{(a)+(b)} is (0.1 to 10.0)/(90.0 to 99.9) on a molar basis.Type: ApplicationFiled: August 6, 2012Publication date: December 25, 2014Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yasuhiro Nakano, Tomihiko Yanagiguchi, Takahiro Kitahara
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Patent number: 8912283Abstract: Provided is a fluorine-containing elastomer blend comprising 5 to 60 wt. % of a high-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 3,000,000 or more, 20 to 80 wt. % of a medium-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 100,000 to 1,000,000, and 10 to 50 wt. % of a low-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 7,000 to 13,000; the number average molecular weight Mn of each fluorine-containing elastomer being measured by liquid chromatography using tetrahydrofuran as a developing solvent at a polymer concentration of 0.5 wt. % at a measurement temperature of 35° C. The fluorine-containing elastomer blend can achieve low hardness and low modulus while improving roll processability.Type: GrantFiled: October 19, 2011Date of Patent: December 16, 2014Assignee: Unimatec Co., Ltd.Inventors: Hideki Hayashi, Mitsuru Maeda, Akihiko Ikeda
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Publication number: 20140364571Abstract: Disclosed herein is a process for the manufacture of a fluoroelastomer composition containing fluoropolymer fibrils. The process comprises applying shear to a fluoroelastomer gum in a mixer while adding a liquid dispersion of fibrillatable fluoropolymer.Type: ApplicationFiled: August 27, 2014Publication date: December 11, 2014Inventors: CHRISTOPHER J. BISH, KOSTANTINOS KOURTAKIS
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Publication number: 20140346707Abstract: The present invention aims to provide an acrylic rubber composition capable of giving an acrylic rubber molded product good in low-friction properties and non-sticking properties. The present invention relates to an acrylic rubber composition containing an acrylic rubber (A) and a fluororesin (B), the fluororesin (B) being a perfluororesin.Type: ApplicationFiled: January 10, 2013Publication date: November 27, 2014Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomohiko Yanagiguchi, Yasuhiro Nakano, Haruhisa Masuda, Takahiro Kitahara
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Patent number: 8877823Abstract: The present invention relates generally to a method for manufacturing a foamed article, which comprises providing a composition comprising a melt-processable perfluoropolymer and talc, said perfluoropolymer comprising at least 50 percent by weight of said composition and said talc comprising about 2 percent to 3 percent by weight of said composition; wherein said melt-processable perfluoropolymer is selected from the group consisting of tetrafluoroethylent/perfluoromethylvinyl ether copolymer (MFA), hexafluoropropylene/tetrafluoroethylene copolymer (FEP), and perfluroralkoxy (PFA) and any blend thereof. The composition is heated to a processing temperature of at least 600° F. at which talc functions as a foaming agent, thereby causing the foaming of said composition at a foaming rate in a range from 20% to 50% so as to form a foamed article. The talc is the only foaming agent in said composition and the foaming is achieved without gas injection.Type: GrantFiled: October 1, 2012Date of Patent: November 4, 2014Assignee: Cable Components Group, LLCInventors: Charles A. Glew, Kenneth R. Boyle, Bradley Lane Kent, Jeffrey A. Hrivnak
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Publication number: 20140323629Abstract: To provide a photoalignable material that can yield a photoalignable film having a high optical uniformity and no alignment defect, and allows photoalignment with exposure in a short period of time. A photoalignable polymer composition containing a specific photoalignable polymer having a silicone group or a fluorine-substituted alkyl group, and a photoalignable group, and a specific non-photoalignable polymer is manufactured, and the photoalignable film is manufactured by applying the polymer composition onto a base material or the like, drying an applied surface thereon, and irradiating the applied surface with light.Type: ApplicationFiled: July 14, 2014Publication date: October 30, 2014Inventors: Mayumi TANABE, Daisuke OOTSUKI, Kie KUBOUCHI
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Publication number: 20140295183Abstract: Provided are a pressure-sensitive adhesive sheet that has an antistatic property; suppresses a peeling electrification voltage when a non-antistatic treated adherend is peeled off; has a small adhesive strength occurring at high-speed peeling; has an adhesive strength occurring at low-speed peeling so large as not to cause a problem, such as lifting and peeling off; and has an excellent transparency; and a pressure-sensitive adhesive composition capable of obtaining an optical film to which the pressure-sensitive adhesive sheet is bonded. Disclosed is a pressure-sensitive adhesive composition containing a polymer (A) having a glass transition temperature of lower than 0° C. and a polymer (B) containing a reactive ionic liquid as a monomer unit and having an intrinsic viscosity (dL/g) of 0.01 or more and less than 0.5.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: NITTO DENKO CORPORATIONInventors: Masato Yamagata, Masayuki Okamoto
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Patent number: 8846812Abstract: Disclosed herein is a process for the manufacture of a fluoroelastomer composition containing fluoropolymer fibrils. The process comprises applying shear to a fluoroelastomer gum in a mixer while adding a liquid dispersion of fibrillatable fluoropolymer.Type: GrantFiled: November 14, 2012Date of Patent: September 30, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Christopher J Bish, Kostantinos Kourtakis
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Publication number: 20140287177Abstract: Provided is a large-size injection molded article which is obtained by injection molding a composition containing a heat-meltable fluoropolymer. Specifically, provided is a large-size injection molded article, which can be molded at a lower injection pressure as compared with a conventional PFA and obtained by molding a composition superior in mold release characteristics from a metal mold. This large-size injection molded article is superior in, particularly, heat resistance and chemical resistance, as well as dimensional accuracy, for a substrate processing apparatus. Provided is an injection molded article, having a projection area in an injection direction of 1100 cm2 or more, obtained by injection molding a composition containing a heat-meltable fluoropolymer. It is a preferable aspect that the composition including a heat-meltable fluoropolymer is a composition containing a melt moldable tetrafluoroethylene/fluoroalkoxytrifluoroethylene copolymer having an MFR over 60 g/10 minutes.Type: ApplicationFiled: July 27, 2012Publication date: September 25, 2014Applicants: NICHIAS CORPORATION, DUPONT-MITSUI FLUOROCHEMICALS CO., LTD.Inventors: Takahide Suda, Takao Nishio, Kenta Yamamoto, Yuto Moritani, Tatsuo Tomizawa, Torao Iida, Takashi Nihongi
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Patent number: 8835551Abstract: Iodine containing amorphous fluoropolymers having at least one fluoropolymer with a cure site, where the fluoropolymer has a Mooney viscosity of 2 or less (ML 1+10) at 100° C. according to ASTM D1646, and a peel strength to a roll mill of 10 dN/cm or less and methods for making such iodine containing amorphous fluoropolymers are described. Articles derived from the cured product of such iodine containing amorphous fluoropolymers are also described. Solutions, dispersions and coatings derived from such iodine containing amorphous fluoropolymers are also described.Type: GrantFiled: September 11, 2008Date of Patent: September 16, 2014Assignee: 3M Innovative Properties CompanyInventors: Tatsuo Fukushi, Peter J. Scott, Cynthia N. Ferguson, Werner M. A. Grootaert, Denis Duchesne, Yeng Moua, Larry A. Last, Terri A. Shefelbine, Luke M. B. Rodgers
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Publication number: 20140255699Abstract: Provided are a resin blend, which includes a first resin, and a second resin having hydrogen-binding donor and acceptor, and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m, and is formed in a layer-separated structure, a pellet, a method of manufacturing the same, and a resin molded article having a specific layer-separated structure. Because of the resin blend, a molded article may have enhanced mechanical properties and surface hardness, and additional surface coating may be omitted, thereby reducing a processing time, increasing productivity, and reducing production costs.Type: ApplicationFiled: May 23, 2014Publication date: September 11, 2014Inventors: Houng Sik YOO, Han Na LEE, Jin Young RYU, Hyeon CHOI, Woo Sung KIM, Eun Joo CHOI
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Patent number: 8796384Abstract: Provided is a cross-linkable fluororubber composition capable of giving a fluororubber cross-linked molded article that has excellent mechanical strength and low friction properties. The cross-linkable fluororubber composition includes a coagulum obtained by co-coagulating a fluororubber (A) and a fluororesin (B).Type: GrantFiled: July 2, 2010Date of Patent: August 5, 2014Assignee: Daikin Industries, Ltd.Inventors: Kouhei Takemura, Tomihiko Yanagiguchi
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Publication number: 20140205904Abstract: A binder composition for a negative electrode of a secondary battery, including a particulate binder, and a water-soluble polymer containing an acidic functional group, wherein the water-soluble polymer has an ion conductivity of 1×10?5 to 1×10?3 S/cm; and a swelling degree of the water-soluble polymer to a liquid with a solubility parameter of 8 to 13 (cal/cm3)1/2 is 1.0 to 2.0 times a swelling degree of the particulate binder measured under the same conditions; and use thereof.Type: ApplicationFiled: August 24, 2012Publication date: July 24, 2014Applicant: ZEON CORPORATIONInventor: Tomokazu Sasaki
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Publication number: 20140205757Abstract: Blended fluoropolymer compositions are provided. In one embodiment, 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) that has been polymerized via a dispersion or emulsion polymerization process, and which has not been agglomerated, irradiated, or thermally degraded. The LPTFE may be in the form of an aqueous dispersion, having a mean particle size of less than 1.0 microns (?m), with the LPTFE having a first melt temperature (Tm) of 332° C. or less. The second fluoropolymer may be a melt processible fluoropolymer (MPF), such as perfluoromethylvinvyl ether (MFA), fluorinated ethylene propylene (FEP), or perfluoropropylvinvyl ether (PFA), for example, in the form of an aqueous dispersion, and having a mean particle size of less than 1.0 microns (?m).Type: ApplicationFiled: March 24, 2014Publication date: July 24, 2014Applicant: WHITFORD CORPORATIONInventors: Leonard W. Harvey, Michael Coates, Julie K. Wright
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Patent number: 8785560Abstract: Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from the aqueous medium by separating fluoropolymer resin in wet form from the aqueous medium and drying to produce fluoropolymer resin in dry form. The process comprises: pretreating the aqueous fluoropolymer dispersion and/or the fluoropolymer resin in wet or dry form; and exposing the fluoropolymer resin in dry form to fluorine.Type: GrantFiled: May 2, 2013Date of Patent: July 22, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Paul Douglas Brothers, Gregory Allen Chapman, Subhash Vishnu Gangal
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Publication number: 20140194565Abstract: Disclosed are non-spherical resin particles that allow for improvement of light diffusion, light reflection, and other related properties, and a manufacturing method thereof. The particles comprise first and second, different resin components (1) and (2), with the second resin component (2) residing locally near the surface of the non-spherical resin particles. The method of manufacturing non-spherical resin particles involves either allowing particles of a resin to absorb a vinyl-based polymerizable monomer contained in an aqueous emulsion followed by polymerization of the absorbed monomer or dissolving a resin in a vinyl-based polymerizable monomer followed by polymerization of the obtained solution in an aqueous medium. In the method, the resin has a site derived from a (meth)acrylic acid ester having a C2-C10 halogenated alkyl group or alicyclic hydrocarbon group and has a weight-average molecular weight of from 150,000 to 1,000,000.Type: ApplicationFiled: August 27, 2012Publication date: July 10, 2014Applicant: SEKISUI PLASTICS CO., LTD.Inventor: Ryosuke Harada
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Patent number: 8754176Abstract: The present invention provides a low-molecular weight polytetrafluoroethylene powder that, when used as an additive in a coating material, etc., can form a coating with excellent texture and gliding properties, while also improving dispersibility and viscosity; and a production process therefor. The present invention is a process for producing a low-molecular weight polytetrafluoroethylene powder, the process comprising: an emulsion polymerization step of polymerizing at least tetrafluoroethylene in the presence of a polymerization initiator and an aqueous medium to produce emulsified particles thereof; an agglomeration step of agglomerating the emulsified particles to form an agglomerated powder thereof; and a suspension polymerization step of polymerizing at least tetrafluoroethylene in the presence of the agglomerated powder, a polymerization initiator, and an aqueous medium.Type: GrantFiled: March 31, 2010Date of Patent: June 17, 2014Assignee: Daikin Industries, Ltd.Inventors: Taku Yamanaka, Masayuki Tsuji, Shunji Kasai, Yasuhiko Sawada
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Publication number: 20140161993Abstract: Disclosed therein are an acrylate compound having a photoreactive group, a photoreactive acrylate polymer, and a photo-alignment layer comprising the same that not only have excellences in alignment properties and alignment rate and readiness for change in the alignment direction based on the polarization direction of radiation but also exhibit a high solubility to organic solvents and good workability.Type: ApplicationFiled: November 29, 2013Publication date: June 12, 2014Applicant: LG CHEM, LTD.Inventors: Dong-Woo Yoo, Sung-Ho Chun, Dai-Seung Choi
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Patent number: 8726537Abstract: In a method and equipment for continuous sintering of pelletized mineral material, a partition wall (7, 8) arranged between two adjacent cooling chambers (4, 5; 5, 6) is in the height direction placed at a distance from the pellet bed (2), so that in between the partition wall (7, 8) and pellet bed (2), there is left a gap (s) that allows gas to flow between two adjacent cooling chambers (4, 5; 5; 6) through the gap (s) in order to equalize the pressure between the cooling chambers.Type: GrantFiled: August 3, 2010Date of Patent: May 20, 2014Assignee: Outotec OyjInventor: Marko Palander
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Patent number: 8710149Abstract: 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: GrantFiled: April 23, 2007Date of Patent: April 29, 2014Assignee: Solvay Solexis S.p.A.Inventors: Julio Abusleme, Alessio Marrani
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Patent number: 8697344Abstract: A composition for forming an upper layer film includes a solvent and a resin component including a first resin having a first repeating unit and a second repeating unit. The first repeating unit is a repeating unit represented by a formula (1-1), a repeating unit represented by a formula (1-2), a repeating unit represented by a formula (1-3), or a combination thereof. The second repeating unit is a repeating unit represented by a formula (2-1), a repeating unit represented by a formula (2-2), or both thereof. The composition is to be used for forming the upper layer film in liquid immersion lithography.Type: GrantFiled: April 1, 2013Date of Patent: April 15, 2014Assignee: JSR CorporationInventors: Daita Kouno, Norihiko Sugie, Gouji Wakamatsu, Norihiro Natsume, Yukio Nishimura, Makoto Sugiura