Fluorine Reactant Contains Atoms Other Than C, H, Or Hal Patents (Class 525/200)
  • Patent number: 10265927
    Abstract: 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 fo
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: April 23, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Hirofumi Katami, Atsushi Yasui
  • Patent number: 9988476
    Abstract: 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: Grant
    Filed: December 2, 2013
    Date of Patent: June 5, 2018
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Pasqua Colaianna, Valeriy Kapelyushko, Marco Mirenda
  • Patent number: 9765235
    Abstract: 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: Grant
    Filed: July 24, 2012
    Date of Patent: September 19, 2017
    Assignee: ROLIC AG
    Inventors: Jean-Francois Eckert, Satish Palika, Andreas Schuster
  • Patent number: 9676909
    Abstract: 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: Grant
    Filed: December 17, 2013
    Date of Patent: June 13, 2017
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Ivan Wlassics, Roberto Biancardi, Pasquale Campanelli, Emanuele Di Nicolo', Aldo Sanguineti, Claudio Adolfo Pietro Tonelli
  • Patent number: 9416234
    Abstract: 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: Grant
    Filed: September 7, 2009
    Date of Patent: August 16, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kohei Takemura, Tomihiko Yanagiguchi, Kazuyoshi Kawasaki
  • Patent number: 9376523
    Abstract: 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: Grant
    Filed: September 2, 2010
    Date of Patent: June 28, 2016
    Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
    Inventors: Mahesh Kalyana Mahanthappa, Corinne Elizabeth Lipscomb, Milton Repollet-Pedrosa
  • Patent number: 9340719
    Abstract: 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: Grant
    Filed: February 2, 2015
    Date of Patent: May 17, 2016
    Assignee: Asahi Glass Company, Limited
    Inventors: Minako Shimada, Yuuichi Oomori
  • Patent number: 9040596
    Abstract: 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: Grant
    Filed: December 28, 2011
    Date of Patent: May 26, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss
  • Patent number: 9029477
    Abstract: 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: Grant
    Filed: March 3, 2006
    Date of Patent: May 12, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Harald Kaspar, Klaus Hintzer
  • Patent number: 9018309
    Abstract: 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: Grant
    Filed: September 20, 2011
    Date of Patent: April 28, 2015
    Assignee: Greene, Tweed Technologies, Inc.
    Inventors: Eugene Gurevich, Brian Ux, Jiazhong Luo, Wonmun Choi
  • Publication number: 20150111031
    Abstract: 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: Application
    Filed: December 19, 2014
    Publication date: April 23, 2015
    Inventors: Lawrence A. Ford, Michael E. Kennedy, Shaofeng Ran, Todd S. Sayler, Gregory J. Shafer
  • Patent number: 9000069
    Abstract: 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: Grant
    Filed: July 1, 2011
    Date of Patent: April 7, 2015
    Assignee: The Sherwin-Williams Company
    Inventors: Peter J. Mackulin, Randolph B. Krafcik, Benjamin M. Borns, Jyotindra K. Doshi, Wendy Zhao
  • Publication number: 20150024216
    Abstract: 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: Application
    Filed: February 14, 2013
    Publication date: January 22, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Noriyuki Usami
  • Publication number: 20140378616
    Abstract: 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: Application
    Filed: August 6, 2012
    Publication date: December 25, 2014
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yasuhiro Nakano, Tomihiko Yanagiguchi, Takahiro Kitahara
  • Publication number: 20140378594
    Abstract: 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: Application
    Filed: December 11, 2012
    Publication date: December 25, 2014
    Inventors: Claude Lavallée, Gregg D. Dahlke, Denis Duchesne, Tatsuo Fukushi, Werner M.A. Grootaert, Miguel A. Guerra, Zai-Ming Qiu
  • Patent number: 8912283
    Abstract: 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: Grant
    Filed: October 19, 2011
    Date of Patent: December 16, 2014
    Assignee: Unimatec Co., Ltd.
    Inventors: Hideki Hayashi, Mitsuru Maeda, Akihiko Ikeda
  • Publication number: 20140364571
    Abstract: 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: Application
    Filed: August 27, 2014
    Publication date: December 11, 2014
    Inventors: CHRISTOPHER J. BISH, KOSTANTINOS KOURTAKIS
  • Publication number: 20140346707
    Abstract: 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: Application
    Filed: January 10, 2013
    Publication date: November 27, 2014
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohiko Yanagiguchi, Yasuhiro Nakano, Haruhisa Masuda, Takahiro Kitahara
  • Patent number: 8877823
    Abstract: 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: Grant
    Filed: October 1, 2012
    Date of Patent: November 4, 2014
    Assignee: Cable Components Group, LLC
    Inventors: Charles A. Glew, Kenneth R. Boyle, Bradley Lane Kent, Jeffrey A. Hrivnak
  • Publication number: 20140323629
    Abstract: 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: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Inventors: Mayumi TANABE, Daisuke OOTSUKI, Kie KUBOUCHI
  • Publication number: 20140295183
    Abstract: 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: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masato Yamagata, Masayuki Okamoto
  • Patent number: 8846812
    Abstract: 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: Grant
    Filed: November 14, 2012
    Date of Patent: September 30, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Christopher J Bish, Kostantinos Kourtakis
  • Publication number: 20140287177
    Abstract: 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: Application
    Filed: July 27, 2012
    Publication date: September 25, 2014
    Applicants: NICHIAS CORPORATION, DUPONT-MITSUI FLUOROCHEMICALS CO., LTD.
    Inventors: Takahide Suda, Takao Nishio, Kenta Yamamoto, Yuto Moritani, Tatsuo Tomizawa, Torao Iida, Takashi Nihongi
  • Patent number: 8835551
    Abstract: 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: Grant
    Filed: September 11, 2008
    Date of Patent: September 16, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: 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
  • Publication number: 20140255699
    Abstract: 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: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Inventors: Houng Sik YOO, Han Na LEE, Jin Young RYU, Hyeon CHOI, Woo Sung KIM, Eun Joo CHOI
  • Patent number: 8796384
    Abstract: 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: Grant
    Filed: July 2, 2010
    Date of Patent: August 5, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Kouhei Takemura, Tomihiko Yanagiguchi
  • Publication number: 20140205757
    Abstract: 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: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: WHITFORD CORPORATION
    Inventors: Leonard W. Harvey, Michael Coates, Julie K. Wright
  • Publication number: 20140205904
    Abstract: 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: Application
    Filed: August 24, 2012
    Publication date: July 24, 2014
    Applicant: ZEON CORPORATION
    Inventor: Tomokazu Sasaki
  • Patent number: 8785560
    Abstract: 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: Grant
    Filed: May 2, 2013
    Date of Patent: July 22, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Paul Douglas Brothers, Gregory Allen Chapman, Subhash Vishnu Gangal
  • Publication number: 20140194565
    Abstract: 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: Application
    Filed: August 27, 2012
    Publication date: July 10, 2014
    Applicant: SEKISUI PLASTICS CO., LTD.
    Inventor: Ryosuke Harada
  • Patent number: 8754176
    Abstract: 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: Grant
    Filed: March 31, 2010
    Date of Patent: June 17, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Taku Yamanaka, Masayuki Tsuji, Shunji Kasai, Yasuhiko Sawada
  • Publication number: 20140161993
    Abstract: 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: Application
    Filed: November 29, 2013
    Publication date: June 12, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Dong-Woo Yoo, Sung-Ho Chun, Dai-Seung Choi
  • Patent number: 8726537
    Abstract: 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: Grant
    Filed: August 3, 2010
    Date of Patent: May 20, 2014
    Assignee: Outotec Oyj
    Inventor: Marko Palander
  • Patent number: 8710149
    Abstract: 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: Grant
    Filed: April 23, 2007
    Date of Patent: April 29, 2014
    Assignee: Solvay Solexis S.p.A.
    Inventors: Julio Abusleme, Alessio Marrani
  • Patent number: 8697344
    Abstract: 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: Grant
    Filed: April 1, 2013
    Date of Patent: April 15, 2014
    Assignee: JSR Corporation
    Inventors: Daita Kouno, Norihiko Sugie, Gouji Wakamatsu, Norihiro Natsume, Yukio Nishimura, Makoto Sugiura
  • Patent number: 8691344
    Abstract: 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 methylfluoroalkoxy (MFA), fluorinated ethylene propylene (FEP), or perfluoroalkoxy (PFA), for example, in the form of an aqueous dispersion, and having a mean particle size of less than 1.0 microns (?m).
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 8, 2014
    Assignee: Whitford Corporation
    Inventors: Leonard W. Harvey, Michael Coates, Julie K. Wright
  • Patent number: 8674042
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer 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: Grant
    Filed: November 10, 2011
    Date of Patent: March 18, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
  • Patent number: 8669336
    Abstract: The invention relates to a coating composition comprising short chain fluorinated acrylates and to the use of short chain fluorinated acrylates as levelling agents for pigmented and unpigmented coating compositions. The coating composition comprises a) a film forming binder resin, and b) a copolymer made by controlled polymerization or by conventional radical polymerization comprising a monomer (M1x) selected from unsaturated monomers out of the group of (meth)acrylates, styrenic monomers or (meth)acrylamides whereby the copolymer contains at least >30 wt % (meth)acrylates; and a monomer (M2y) selected from C1-C4-fluoralkyl(meth)acrylates; x denotes the total number of monomers M1 within the structural element (M1x): x>5, preferred, 10-1000, most preferred, 10-500; y denotes the total number of monomers M2 within the structural element (M2y): y>1, preferred, 2-20, most preferred 2-10; c) optional other conventional coating components and/or additives.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: March 11, 2014
    Assignee: BASF SE
    Inventors: Andreas Möck, Ralf Knischka, Clemens Auschra
  • Patent number: 8658740
    Abstract: 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: Grant
    Filed: May 21, 2008
    Date of Patent: February 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gregory Allen Chapman, David E. Bidstrup
  • Patent number: 8653213
    Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Compositions that include perfluorohexyl(meth)acrylate and a branched or high Tg monomer are provided as are articles coated with the polymerization product of the composition. Methods are also provided for forming hydrophobic coatings on articles.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: February 18, 2014
    Assignee: Cytonix, LLC
    Inventor: James F Brown
  • Patent number: 8642702
    Abstract: The invention pertains to a thermoplastic VDF polymer composition comprising: at least one thermoplastic vinylidene fluoride (VDF) polymer comprising at least 85% by moles of recurring units derived from VDF; and at least one ethylene/chlorotrifluoroethylene (ECTFE) polymer, wherein said ECTFE polymer possesses a melting point of less than 210° C. and it is comprised in an amount of from 0.1 to 20% wt with respect to the total weight of VDF polymer and ECTFE polymer. The invention also pertains to a process for making the VDF polymer and to the uses thereof for manufacturing films, in particular transparent films.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: February 4, 2014
    Assignee: Solvay Specialty Polymers Italy S.p.A.
    Inventors: Julio A. Abusleme, Stefano Mortara
  • Patent number: 8637608
    Abstract: Fluoropolymers containing one or more azide group wherein the azide group is not a sulfonyl-azide group and processes of preparing them.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: January 28, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Michael Juergens, Harald Kaspar, Kai H. Lochhaas, Oleg Shyshkov, Andre Streiter, Tilman C. Zipplies, Sabine H. G. Beuermann, Muhammad Imran ul-haq
  • Patent number: 8632856
    Abstract: Highly water repellent coated articles may be made by applying to a substrate a coating having dispersed therein or sprinkled thereon partially or fully fluorinated polymer microparticles. The coating includes a partially fluorinated hexafluoropropylene copolymer binder in a nonfluorinated solvent that dissolves the binder and does not dissolve the microparticles. The coating is heated sufficiently to bond the microparticles to the binder but not so much as to cause the receding water contact angle for the coating to fall below 80°.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: January 21, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Lisa P. Chen
  • Patent number: 8609775
    Abstract: An ink composition for forming a fuel cell electrode, and in particular, a fuel cell cathode layer is provided. The ink composition includes a first protogenic group-containing ionomer having an equivalent weight less than 800, an optional second protogenic group-containing ionomer having an equivalent weight greater than 800, and a catalyst composition. Electrode layers formed from the ink composition are also provided.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 17, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Bradley M. Houghtaling, Thomas A. Greszler, Timothy J. Fuller
  • Patent number: 8603411
    Abstract: A seal is formed of a material including a crosslinked fluoropolymer. The seal substantially prevents leaks in a high pressure pump.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: December 10, 2013
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Robert Thomas Racicot, Jon M. Lenhert, Karthik Vaideeswaran, Christopher M. Comeaux
  • Patent number: 8586677
    Abstract: Blended fluoropolymer compositions that, in one exemplary application, may be applied as a coating to a substrate and, optionally, may be applied to a substrate that has been previously coated with a primer or basecoat and/or a midcoat. In one embodiment, the composition is a blend of at least one high molecular weight trace modified polytetrafluoroethyelene (TMHPTFE) and at least one melt-processible fluoropolymer (MPF). After being applied to the substrate, optionally over a primer or basecoat and/or midcoat, and then cured, the present compositions form coatings that demonstrate improved abrasion resistance and/or improved release characteristics and/or increased translucency/transparency and/or improved impermeability. The present compositions may also be used to produce films having a high degree of clarity and impermeability. The present compositions in powder form may be melt or paste extruded to form articles with improved impermeability.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: November 19, 2013
    Assignee: Whitford Corporation
    Inventors: Leonard W. Harvey, Helen L. Brain, Susan J. Roberts-Bleming, Lawrence D. Leech, Thomas J. Bate
  • Patent number: 8586673
    Abstract: Polymer composition (C) containing (i) a poly(aryl ether sulfone) material (M12) composed of a poly(biphenyl ether sulfone) (P1) and, optionally in addition, a poly(aryl ether sulfone) (P2) containing recurring units with arylene groups linked to each other via a secondary, ternary or quaternary carbon atom, and (ii) a per(halo)fluoropolymer material (M34), composed of a per(halo)fluoropolymer (P3) of which at least 2.0 wt. % of the recurring units are derived from a per(halo)fluoromonomer other than tetrafluoroethylene, and a polytetrafluoroethylene (P4). Shaped article, especially aircraft interior component, comprising the polymer composition (C).
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: November 19, 2013
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventor: Shari A. Weinberg
  • Publication number: 20130303701
    Abstract: 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: Application
    Filed: May 2, 2013
    Publication date: November 14, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Paul Douglas Brothers, Gregory Allen Chapman, Subhash Vishnu Gangal
  • Patent number: 8580892
    Abstract: A rubber composition has sufficient resistance to degradation and swelling caused by a liquid such as a water-soluble coolant and also is capable of having sufficient resistance to ozone. The rubber composition contains a fluororubber not having a vinylidene fluoride structure, a nitrile rubber, a fluorine-based oil and a peroxide vulcanizing agent.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: November 12, 2013
    Assignee: OMRON Corporation
    Inventors: Kazuyuki Tsukimori, Junryo Nariai, Tsutomu Inuyama, Shinji Mizuno
  • Publication number: 20130281579
    Abstract: A dispersion spun fluoropolymer fiber prepared from non-melt-processible polytetrafluoroethylene particles and perfluoroalkoxy particles.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 24, 2013
    Inventors: Arthur Russell Nelson, Chester Darryl Moon