Fluorine-containing Monomer Patents (Class 524/520)
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Publication number: 20110143143Abstract: The present teachings include a coating composition which includes a liquid, fluoropolymer particles, carbon nanotubes, and a dispersant. The dispersant has a thermal degradation temperature below the melting temperature of the fluoropolymer particles.Type: ApplicationFiled: December 16, 2009Publication date: June 16, 2011Applicant: XEROX CORPORATIONInventors: Yu Qi, Nan-Xing Hu, David C. Irving, Patrick J. Finn
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Publication number: 20110144255Abstract: An object of the present invention is to provide an aqueous fluoropolymer dispersion inhibited from viscosity rising and excellent in mechanical stability in spite of a low fluorinated surfactant concentration. The invention provides an aqueous fluoropolymer dispersion comprising particles of a fluoropolymer as dispersed in an aqueous medium wherein a fluorinated surfactant (A) having a molecular weight lower than 1000 amounts to not higher than 100 ppm of the mass of the fluoropolymer, the aqueous fluoropolymer dispersion containing an anionic surfactant (B) other than the fluorinated surfactant (A) as well as a water-soluble polymer (C).Type: ApplicationFiled: February 24, 2011Publication date: June 16, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Chie SAWAUCHI, Nobuhiko TSUDA, Wade Martin SIMPSON
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Publication number: 20110118403Abstract: The invention relates to aqueous fluoropolymer hybrid compositions made by a seeded emulsion polymerization process, having improved film formation properties. The seed is a fluoropolymer dispersion. At least two different monomer compositions are added sequentially to the seeded dispersion. These monomer compositions preferably include acrylic monomers. The first monomer composition is selected for miscibility with the fluoropolymer dispersion. The second monomer composition is selected to have a glass transition temperature (Tg) of less than 30° C. The final composition can be formulated to make coatings with a minimum film forming temperature (MFFT) of less than 5° C., and a maximum VOC of 50 g/liter. The composition is especially useful for coatings and films.Type: ApplicationFiled: June 18, 2009Publication date: May 19, 2011Applicant: Arkema Inc.Inventors: Kurt A. Wood, Lotfi Hedhli, Mehdi Durali
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Publication number: 20110118371Abstract: The invention relates to thermoplastic molding compositions comprising A) from 55 to 98% by weight of at least one vinylaromatic copolymer impact-modified with a particulate graft rubber, B) from 1 to 44% by weight of a flame retardant comprising B1) an expandable graphite, B2) a phosphorus-comprising flame-retardant compound, and B3) a fluorine-comprising polymer, C) from 1 to 20% by weight of a non-particulate rubber comprising polar groups, and D) from 0 to 40% by weight of further additives, where the percentages by weight are in each case based on the total weight of components A) to D) and give a total of 100% by weight, and also to processes for the preparation of these molding compositions, to the use of these molding compositions for the production of moldings, of fibers, of foams, or of foils, and also to the resultant moldings, fibers, foams, and foils.Type: ApplicationFiled: July 3, 2009Publication date: May 19, 2011Applicant: BASF SEInventors: Maarten Staal, Piyada Charoensirisomboon, Norbert Güntherberg, Hartmut Heinen, Günter Kehr, Michel Pepers
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Publication number: 20110111659Abstract: A method of providing oil repellency, water repellency, and dynamic water repellency to a substrate comprising contacting the substrate with a polymer composition comprising A) a first polymer comprising (a) hydrophobized nanoparticle; (b) C1 to C18, straight, branched, or cyclic alkyl (meth)acrylate; (c) N-methylol (meth)acrylamide or a monomer of formula (I) R—(OCH2CH2)a—O—C(O)—C(R1)?CH2??(I) wherein R is hydrogen, C1-C4 alkyl, or —C(O)—C(R1)?CH2, and R1 is H or —CH3; said first polymer in contact with B) a second polymer comprising (d) a fluorinated monomer of formula (II) Rf1-L-X—C(O)—C(R)?CH2??(II) wherein Rf1 is a monovalent, partially or fully fluorinated, linear or branched, alkyl radical having 2 to about 100 carbon atoms; optionally interrupted by 1 to about 50 oxygen atoms; wherein the ratio of carbon atoms to oxygen atoms is at least 2:1 and no oxygen atoms are bonded to each other; L is a bond or a linear or branched divalent linking group having 1 to about 20 carbon atoms,Type: ApplicationFiled: November 9, 2009Publication date: May 12, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Gerald Oronde Brown, Victoria A. Helinski
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Patent number: 7939591Abstract: The present disclosure relates to a resin composition having excellent thermal stability, light reflectivity and color, and, preferably, flame retardancy. The present disclosure also relates to a method for producing a resin composition which comprises mixing 60 to 99.9 parts by weight of polycarbonate resin (component A) with 0.1 to 40 parts by weight of titanium dioxide pigment (component B), wherein component B (i) satisfies 0.05?(b)?(a)?0.6, when weight. reduction at 23 to 100° C. by thermogravimetric analysis (TGA) is (a) wt % and weight reduction at 23 to 300° C. by TGA is (b) wt %, and (ii) satisfies 0.001?(d)/(c)?0.01 and 0.001?(e)/(c)?0.02, when weight percentages derived from Ti, Al and Si elements in X-ray fluorescence analysis are (c) wt %, (d) wt % and (e) wt %, respectively.Type: GrantFiled: May 18, 2006Date of Patent: May 10, 2011Assignee: Teijin Chemicals, Ltd.Inventor: Takuya Tomoda
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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: 20110052840Abstract: An intermediate transfer member that contains a mixture of carbon black, and as a dispersant for the carbon black a copolymer of a polyester, a polycarbonate and a polyalkylene glycol, such as a polyethylene glycol, and further including an optional second polymer.Type: ApplicationFiled: August 31, 2009Publication date: March 3, 2011Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20110040021Abstract: A method comprising melt-processing a first composition. The first composition comprises a first fluoropolymer having a relaxation exponent of from 0.93 to 1.0 and a second fluoropolymer having a relaxation exponent of from 0.30 to 0.92. A method comprising melt-processing a first composition, wherein the first composition comprises a first fluoropolymer having an LCBI of from 0 to 0.1 and a second fluoropolymer having an LCBI of at least 0.2. A method comprising melt-processing a first composition, wherein the first composition comprises a core-shell polymer having a first fluoropolymer portion and a second fluoropolymer portion. The extrusion products have a lower width homogeneity index value than observed in state of the art fluo-ropolymers.Type: ApplicationFiled: July 2, 2008Publication date: February 17, 2011Inventors: Harald Kaspar, Klaus Hintzer, Mark W. Muggil, Stefan V. Friedrich
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Patent number: 7879948Abstract: The present invention provides a fluorine-containing elastomer composition comprising a fluorine-containing elastomer (A) and a fluorine-containing elastomer (B) having a fluorine amount of at least 67% by weigh and a lower molecular weight than the fluorine-containing elastomer (A), wherein the fluorine amount of the fluorine-containing elastomer (B) is larger than a fluorine amount of the fluorine-containing elastomer (A). The present invention also provides a molded article obtained by crosslinking the fluorine-containing elastomer composition.Type: GrantFiled: June 24, 2005Date of Patent: February 1, 2011Assignee: Daikin Industries, Ltd.Inventors: Shintarou Ogata, Mitsuru Kishine
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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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Patent number: 7847012Abstract: A thermally expandable vinyl chloride resin composition is provided. It includes (A) 100 parts by mass of a vinyl chloride resin, (B) 5 to 200 parts by mass of an inorganic filler, (C) 10 to 300 parts by mass of a thermally expandable graphite, (D) 0.1 to 10 parts by mass of a fluororesin, and (E) 10 to 300 parts by mass of a phosphorus compound. The composition exhibits favorable thermal expansion properties and favorable shape retention following thermal expansion upon exposure to high temperatures.Type: GrantFiled: June 5, 2007Date of Patent: December 7, 2010Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tatsuya Fujimoto, Ken Yahata, Tadashi Amano
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POLYMER COMPOSITIONS, ARTICLES MADE FROM SUCH COMPOSITONS, AND METHODS FOR MOLDING SUCH COMPOSITIONS
Publication number: 20100301525Abstract: A polymer composition comprises a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A molded article comprises at least one wall defining a cavity, the wall having an opening therein permitting access to the cavity. The wall comprises a polymer composition comprising a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A method for molding a polymer composition is also provided.Type: ApplicationFiled: May 26, 2010Publication date: December 2, 2010Inventors: John D. Price, Nathan A. Mehl -
Publication number: 20100298487Abstract: The invention relates to an extrusion agent comprising: at least one heterogeneous PVDF (A), in other words a copolymer of VDF and at least one comonomer of VDF, comprising by weight at least 50%, advantageously at least 75%, of VDF which has a melting point Tm (expressed in ° C.)>172-549 m, preferably >1.1×(172-549 m), where m denotes the overall molar percentage of comonomer(s); and at least one interface agent (B), which are optionally diluted in a polyolefin (C). The heterogeneous PVDF preferably has a Tm of between 160 and 172° C. Advantageously it is also a VDF-HFP copolymer containing, by weight, from 88% to 92% of VDF and from 8% to 12% of HFP. The extrusion agent is used to reduce or eliminate the surface defects which arise during the extrusion of a thermoplastic resin (D). This resin may be a polyolefin, a styrenic resin, a polyester or a PVC. Optionally it may also be filled, i.e., may contain dispersed organic or inorganic particles.Type: ApplicationFiled: January 5, 2007Publication date: November 25, 2010Applicant: Arkema FranceInventors: Anthony Bonnet, Johann Laffargue, Francois Beaume
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Patent number: 7766884Abstract: A polymer blend that contains a polymer of fluorinated monomers and another biocompatible polymer. The polymer blend can form a coating on a medical device. The medical device can be used for treat, prevent or ameliorate a medical condition.Type: GrantFiled: May 25, 2007Date of Patent: August 3, 2010Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Stephen Dirk Pacetti
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Publication number: 20100189946Abstract: The invention relates to a composite material including nanotubes of a chemical element selected from the compounds of the elements of columns IIIa, IVa and Va of the periodic table, dispersed in a polymer matrix including (a) at least one fluorinated homo- or copolymer and (b) at least one fluorinated homo- or copolymer grafted with at least one carboxylic polar function. The invention also relates to the use of the composite material and to the use of at least one fluorinated homo- or copolymer grafted with at least one carboxylic polar function for increasing the tensile strength of a composite material containing the above nanotubes dispersed in a fluorinated polymer matrix.Type: ApplicationFiled: June 27, 2008Publication date: July 29, 2010Applicant: Arkema FranceInventors: Gilles Hochstetter, Michael Werth
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Publication number: 20100189983Abstract: The invention describes a transparent foil composed of plastic with improved weathering resistance and increased intrinsic stability where the foil encompasses a) poly(meth)acrylate and polyvinylidene fluoride in a ratio of from 1:0.01 to 1:1 (w/w); and b) a mixture composed of UV stabilizers and of UV absorbers. PMMA matrix plastics with high molecular weights and with a certain selected coacrylate proportion are preferably used in order to achieve excellent weathering resistance, and also improved intrinsic stability of the surface-protection foils.Type: ApplicationFiled: March 17, 2008Publication date: July 29, 2010Applicant: Evonik Roehm GmbHInventors: Uwe Numrich, Achim Neuhaeuser, Thomas Arndt, Thorsten Goldacker, Alexander Laschitsch, Guenther Dickhaut-Bayer
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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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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: 20100167615Abstract: The present invention describes a process for the surface finishing of materials via application of specific polymethacrylate layers. The polymethacrylate layers are composed of blends of at least two (co)polymers of polymethacrylates, and specific “reactive monomers” are present here in a polymerized mixture which forms the polymethacrylate layer. At the application temperature established, these form a chemical and, where appropriate, also a physical bond to the substrate, and therefore have adhesion-promoting action.Type: ApplicationFiled: December 23, 2009Publication date: July 1, 2010Applicant: Evonik Roehm GmbHInventors: Uwe Numrich, Michael Wicker, Achim Neuhaeuser, Christoph Krohmer, Guenther Dickhaut-Bayer
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Patent number: 7745530Abstract: The present invention provides an aqueous emulsion resin composition which comprises: (a) a resin composition containing at least one fluoroolefin polymer having crosslinkable group(s) at a terminus and/or a side chain of its molecule and at least one non-fluoroolefin polymer having crosslinkable group(s) at a terminus and/or a side chain of its molecule; and (b) at least one curing agent selected from the group consisting of isocyanates, melamines, hydrazides, carbodiimides, silanes and epoxides; and provides an aqueous emulsion resin compositions containing at least one chemically bonded product of a fluoroolefin polymer and a non-fluoroolefin polymer bonded to each other via at least one covalent bond at a terminus and/or a side chain of the molecules wherein one or both of the fluoroolefin polymer and the non-fluoroolefin polymer have crosslinkable group(s).Type: GrantFiled: June 28, 2002Date of Patent: June 29, 2010Assignee: Daikin Industries, Ltd.Inventors: Nobuo Mitsuhata, Tsunehiko Fuwa, Susumu Wada, Keiko Kunimasa, Haruhiko Mohri, Nobuo Fukita
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Publication number: 20100151235Abstract: In order to provide curable molding compositions and shaped plastics articles prepared therefrom having an improved easy-clean property compared with the prior art, it is proposed that the curable molding composition for the production of shaped plastics articles contains a liquid monomeric methacrylate component and an amount of a particulate inorganic material ranging from 45 to 85 wt %, based on the molding composition, and that it further contains a hydrophobic monomeric component comprising at least one organosiloxane that is functionalized with an unsaturated group.Type: ApplicationFiled: November 24, 2009Publication date: June 17, 2010Inventors: Andreas Hajek, Thomas Heck
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Publication number: 20100136486Abstract: A protective coating composition comprising a polymer of acyl-protected hexafluoroalcohol structure as a base polymer, optionally in admixture with a second polymer containing sulfonic acid amine salt in recurring units is applied onto a resist film. The protective coating is transparent to radiation of wavelength up to 200 nm.Type: ApplicationFiled: December 1, 2009Publication date: June 3, 2010Inventors: Yuji HARADA, Jun Hatakeyama, Koji Hasegawa
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Publication number: 20100120970Abstract: The present invention relates to novel (AB) block copolymers for use in coating surfaces to provide self-cleaning surfaces and capture/release materials wherein the copolymers comprises a first hydrophobic block (A) comprising a polymer selected from the group consisting of: a homopolymer of a fluorinated acrylate or methacrylate monomer (A1); a random, alternating, gradient or block copolymer, (A1A2) comprising: a fluorinated acrylate or methacrylate monomer (A1); and a non-fluorinated acrylate or methacrylate monomer (A2); a random, alternating, gradient or block copolymer, (A1A2) comprising: a fluorinated acrylate or methacrylate monomer (A1) and a silyl acrylate or methacrylate monomer (A3); and a random, alternating, gradient or block copolymer, (A1A2A3) comprising: a silyl acrylate or methacrylate monomer (A1), a fluorinated acrylate or methacrylate monomer (A2) and a non-fluorinated acrylate or methacrylate monomer (A3); and a second hydrophilic block (B) comprising a non-fluorinated acrylate or methacType: ApplicationFiled: December 12, 2007Publication date: May 13, 2010Applicant: UNIVERSITY OF LEEDSInventors: Simon Biggs, Gaelle Baquey
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Publication number: 20100113660Abstract: To provide a resin composition comprising an aromatic polycarbonate resin and having excellent appearance, impact strength, thermal stability, hydrolysis resistance, and flame retardancy. The present invention relates to a resin composition comprising (A) 75 to 99.98 wt % of an aromatic polycarbonate resin (component A), (B) 0.01 to 5 wt % of a mixture of polytetrafluoroethylene particles and an organic polymer (component B) and (C) 0.01 to 20 wt % of a flame retardant (component C), wherein the sodium metal ion content of the component B (excluding sodium metal ion contained in the polytetrafluoroethylene particles) is 10 ppm or less, and molded articles therefrom.Type: ApplicationFiled: July 30, 2007Publication date: May 6, 2010Inventors: Takuya Tomoda, Yoshihisa Shinagawa, Shinichi Soda
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Publication number: 20100104845Abstract: The present invention provides sintered composite polymeric materials and methods of making and using the same. The sintered composite polymeric materials are made by sintering composite particles comprising a polytetrafluoroethylene component and a carbonaceous component, wherein the carbonaceous component is dispersed throughout the polytetrafluoroethylene component.Type: ApplicationFiled: October 23, 2009Publication date: April 29, 2010Applicant: Porex CorporationInventors: Andrew James MacLennan, Tripp Augustus Avett, Xingguo Li, Guoqiang Mao
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Publication number: 20100086787Abstract: Exemplary embodiments provide coating compositions having pseudo-fluorine surface and methods for processing and using the coating compositions. The coating composition can include, for example, a plurality of fluorine-containing resin fillers and a plurality of nanotubes (e.g., carbon nanotubes (CNTs)) dispersed in a polymer matrix that contains, e.g., one or more cross-linked polymers. The fluorine-containing resin fillers can provide a pseudo-fluorine surface for a low surface energy of the coating composition. The nanotubes can be dispersed in the polymer matrix to provide an improved mechanical robustness of the coating composition. The coating composition can be coated on a member surface, wherein the coated member can be, for example, a fuser member, a fixing member, a pressure roller, or a release agent donor member, used in an electrostatographic printing device or process.Type: ApplicationFiled: October 6, 2008Publication date: April 8, 2010Applicant: XEROX CORPORATIONInventors: Yu QI, Nan-Xing Hu, Qi Zhang, Gordon Sisler, Brian McAneney
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Publication number: 20100080959Abstract: Blended fluoropolymer compositions that, in one exemplary application, may be applied as a coating to a flexible substrate and, optionally, to a flexible 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 low molecular weight polytetrafluoroethyelene (LPTFE) and at least one melt-processible fluoropolymer (MPF). In another embodiment, the composition includes a fluoropolymer base component including at least one fluoropolymer such as high molecular weight polytetrafluoroethylene (HPTFE), and additionally includes the LPTFE/MPF blended fluoropolymer composition. After being applied to the flexible 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.Type: ApplicationFiled: September 25, 2009Publication date: April 1, 2010Applicant: WHITFORD CORPORATIONInventors: Leonard W. Harvey, Helen L. Brain
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Patent number: 7666947Abstract: A gasket material comprising polytetrafluoroethylene (PTFE) and a thermoplastic polymer having a melting point lower than the melting point of PTFE. Preferred thermoplastic polymers comprise fluorinated thermoplastic polymers, and most preferred fluorinated thermoplastic polymers comprise fluorinated ethylene propylene and perfluoroalkoxy copolymer. The PTFE component preferably comprises full density PTFE, and a filler material may optionally be added. The PTFE component is present in the gasket material in an amount from approximately 50% to less than 100%, based on the total weight of the gasket material, and the thermoplastic polymer is present in an amount from greater than 0% to approximately 20%, based on the total weight of the gasket material.Type: GrantFiled: April 7, 2005Date of Patent: February 23, 2010Assignee: Garlock Sealing Technologies, LLCInventors: Jarod R. Hammar, Erik Phelps, Stefan Pitolaj
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Publication number: 20100004377Abstract: Disclosed are compositions comprising (i) a rigid thermoplastic resin comprising structural units derived from a (C1-C12)alkyl (meth)acrylate monomer, and optionally a second monomer selected from the group consisting of a vinyl aromatic monomer, a monoethylenically unsaturated nitrile monomer and mixtures thereof, and (ii) a fluoropolymer additive comprising 30 wt. % to 70 wt. % of a fluoropolymer and 70 wt. % to 30 wt. % of a carrier polymer comprising structural units derived from a vinyl aromatic monomer, or a monoethylenically unsaturated nitrile monomer, or mixtures thereof, wherein the fluoropolymer is at least partially encapsulated by the carrier polymer and wherein the amount of fluoropolymer present in the composition is in a range of 2 parts by weight (pbw) to 25 pbw based on 100 pbw of the composition, and wherein the composition is free of both rubber component and filler. Articles made from the compositions and a method to improve physical properties in the compositions are also disclosed.Type: ApplicationFiled: July 27, 2009Publication date: January 7, 2010Inventors: Sandeep Dhawan, Satish Kumar Gaggar
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Patent number: 7638581Abstract: A fluoropolymer coating composition contains a homogeneous mixture of crystalline submicron fluoropolymer particles dispersed in a solvent-borne solution of less crystalline or amorphous fluororesin. The composition may be prepared by blending a latex containing crystalline submicron fluoropolymer particles with a latex containing less crystalline or amorphous fluororesin particles, coagulating and drying the blended latices, and dissolving the dried blend in a solvent for the fluororesin particles. Quasi-homogenous compositions may be prepared by blending dry crystalline submicron fluoropolymer particles with a) dry less crystalline or amorphous fluororesin particles and a solvent for the fluororesin particles, or b) a solvent-borne solution of less crystalline or amorphous fluororesin. Rubbing the disclosed coatings can provide a thin, continuous or nearly continuous fluoropolymer surface layer atop a less crystalline or amorphous fluororesin binder containing crystalline submicron fluoropolymer particles.Type: GrantFiled: December 19, 2005Date of Patent: December 29, 2009Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Tatsuo Fukushi, Chuntao Cao, Lan H. Liu, Thomas P. Klun, William D. Coggio, Vivian W. Jones
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Publication number: 20090318608Abstract: Methods for preparing pigmented and nonpigmented powder coating compositions are disclosed. The methods generally involve the use of dispersions comprising a fluoropolymer.Type: ApplicationFiled: August 28, 2009Publication date: December 24, 2009Applicant: PPG Industries Ohio, Inc.Inventors: Ronald R. Ambrose, Anthony M. Chasser, Kristin M. Bartlett, Henry L. Lowman, Joanne M. Funyak
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Publication number: 20090312461Abstract: A fluoroelastomer latex composition stabilized against settling with from 1 wt % up to 50 wt % of a natural or synthetic pulp, comprising fibers having an average length of from 0.1 mm to 13 mm, uniformly dispersed therein.Type: ApplicationFiled: June 11, 2008Publication date: December 17, 2009Inventor: Peter A. Fox
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Patent number: 7632884Abstract: It is an object of the present invention to provide a liquid composition for an organic-inorganic composite dielectric excellent in dispersibility of an inorganic dielectric in an organic polymer and exhibiting a high dielectric constant in the case where the composition is used for producing an organic-inorganic composite dielectric. The present invention is directed to a liquid composition for a composite dielectric, which comprises an inorganic dielectric and a fluorinated aromatic polymer.Type: GrantFiled: September 28, 2004Date of Patent: December 15, 2009Assignee: Nippon Shokubai Co., Ltd.Inventors: Hayahide Yamasaki, Yoshinobu Asako, Kazushi Omote, Ai Nishichi
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Patent number: 7625973Abstract: Methods for preparing pigmented and nonpigmented powder coating compositions are disclosed. The methods generally involve the use of dispersions comprising a fluoropolymer.Type: GrantFiled: February 24, 2005Date of Patent: December 1, 2009Assignee: PPG Industries Ohio, Inc.Inventors: Ronald R. Ambrose, Anthony M. Chasser, Kristin M. Bartlett, Henry L. Lowman, Joanne M. Funyak
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Patent number: 7615591Abstract: A rubber composition comprises a diene rubber component, a filler and a softening agent, in which a given amount of a filler is compounded based on 100 parts by mass of a diene rubber component, and a softening agent is included in a given amount per the filler, and not less than 60% by mass of the diene rubber component is a solution-polymerized styrene-butadiene copolymer rubber having a mass average molecular weight of not less than 1,000,000, and the filler is selected from the group consisting of carbon black, silica and an inorganic agent of a formula (I): mM.xSiOy.zH2O (wherein M is at least one metal selected from the group consisting of aluminum, magnesium, titanium and calcium, or an oxide of such a metal or a hydroxide of such a metal, m is a number of 1-5, x is a number of 0-10, y is a number of 2-5 and z is a number of 0-10), wherein each of the filler and the softening agent is charged in at least two fractions.Type: GrantFiled: February 2, 2005Date of Patent: November 10, 2009Assignee: Bridgestone CorporationInventor: Hideki Matsui
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Publication number: 20090275677Abstract: An aqueous coating composition comprising a mixture of recycled rubber particles, and particles at least one of glass or plastic particles, graphite particles and fluorinated resin particles such as polytetrafluoroethytlene and a suspension agent or resin. Various embodiments are useful for coating suitable for highways and parking lots, roofs or swimming pools and metal surfaces and for “rubberizing” marine and other manufactured products.Type: ApplicationFiled: May 1, 2009Publication date: November 5, 2009Inventor: Ronald R. SAVIN
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Patent number: 7604818Abstract: A polymer of fluorinated monomers and hydrocarbon monomers is provided. It is also provided a polymer blend that contains a polymer formed of fluorinated monomers and hydrocarbon monomers and another biocompatible polymer. The polymer or polymer blend described herein and optionally a bioactive agent can form an implantable device such as a stent or a coating on an implantable device such as a drug-delivery stent, which can be used for treating or preventing a disorder such as atherosclerosis, thrombosis, restenosis, hemorrhage, vascular dissection or perforation, vascular aneurysm, vulnerable plaque, chronic total occlusion, claudication, anastomotic proliferation for vein and artificial grafts, bile duct obstruction, ureter obstruction, tumor obstruction, or combinations thereof.Type: GrantFiled: December 22, 2004Date of Patent: October 20, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Stephen D. Pacetti
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Publication number: 20090253854Abstract: High purity perfluoroelastomer composites and processes for producing the same are provided. High purity composites may be formed from compositions comprising a crosslinkable fluoroelastomer terpolymer of TFE, PAVE, and CNVE, and functionalized PTFE, which may be crosslinked to form crosslinked composites having low metal content and low compression set. Emulsion mixtures for forming the high purity composites are also provided.Type: ApplicationFiled: January 14, 2009Publication date: October 8, 2009Inventors: Ping Xu, Jack Hegenbarth
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Publication number: 20090227726Abstract: Peroxide curable fluoroelastomer compositions and articles made therefrom are disclosed. The compositions contain 5 to 45 weight percent, based on total weight of all fluoroelastomers present in the composition, of a blend of dynamically cured fluoroelastomer particles in an uncured fluoroelastomer. The compositions are unfilled, but have tensile properties adequate for many end use applications and are particularly useful as seals in semiconductor manufacturing equipment.Type: ApplicationFiled: February 25, 2009Publication date: September 10, 2009Inventors: Ronald D. Stevens, Shuhong Wang
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Patent number: 7579409Abstract: A micropowder composition containing a granular PTFE micropowder, a fine powder PTFE micropowder, and a fine powder molding resin provides mixtures with fluoroelastomers containing copolymerized and alternating units of tetrafluoroethylene and propylene that provide molded articles having improved surface smoothness characteristics and tear resistance on molding. Processes for mixing additives with fluoroelastomers by adding or mixing the fluoroelastomer with the additives in the presence of micropowder PTFE compositions.Type: GrantFiled: October 27, 2005Date of Patent: August 25, 2009Assignee: AGC Chemicals Americas, Inc.Inventors: David J. Lavanga, Richard DeLucca
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Publication number: 20090203830Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min. as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo) fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: ApplicationFiled: June 27, 2006Publication date: August 13, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Julio A. Abusleme, Giulio Brinati, Pier Antonio Guarda
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Publication number: 20090171004Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min, as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo)fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: ApplicationFiled: June 27, 2006Publication date: July 2, 2009Applicant: Solvay Solexis S.p.AInventors: Julio A. Abusleme, Giulio Brinati, Pier Antonio Guarda
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Patent number: 7550530Abstract: An aqueous fluoroelastomer curable composition including two liquids of a main material fluoroelastomer aqueous dispersion (I) and a fluoroelastomer-curing agent aqueous solution (II), wherein the above main material fluoroelastomer aqueous dispersion (I) is an aqueous dispersion having a pH of 6.5 to 8.5, comprising a fluoroelastomer (A), a dispersant (B), an acid acceptor (C) and a salt (D) composed of an acid with a pKa of 3 to 7 and a base with a pKa of 8 to 12, and the above fluoroelastomer-curing agent aqueous solution (II) is an aqueous solution including a fluoroelastomer-curing agent.Type: GrantFiled: June 1, 2004Date of Patent: June 23, 2009Assignee: Daikin Industries Ltd.Inventors: Nobuyuki Tomihashi, Koichiro Ogita, Kiyotaro Terasaka
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Publication number: 20090152488Abstract: The use of a sulphur-free and low-emission elastomer blend which has properties of various rubbers, and the mechanical properties thereof are improved, in particular, in relation to the permanent set (DVR), elongation at rupture, tensile strength and/or gas permeability (permeation) in relation to the individual compounds, and it also has an improved temperature resistance and an improved resistance to media. The elastomer blend also includes a rubber having at least two functional groups which can be cross-linked by hydrosilylation, at least one other rubber comprising at least two functional groups which can be cross-linked by hydrosilylation. The rubber is chemically different from the rubber and a cross-linking agent includes a hydrosiloxane or hydrosiloxane derivative or a mixture of several hydrosiloxanes or derivatives, which include at least two SiH groups per molecule in the centre, a hydrosilylation catalyst system and at least one filling material.Type: ApplicationFiled: September 14, 2006Publication date: June 18, 2009Applicant: CARL FREUDENGERG KGInventors: Matthias Adler, Ruth Bieringer, Michael Viol
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Patent number: 7544732Abstract: Unmodified fluororesin, modified fluororesin and mica are mixed to provide a modified fluororesin composition. The modified fluororesin composition is molded into a molded article having a predetermined shape. The modified fluororesin composition and the modified fluororesin composition molded article have excellent abrasion resistance in the water and hold original good properties of the fluororesin.Type: GrantFiled: September 27, 2005Date of Patent: June 9, 2009Assignee: Hitachi Cable, Ltd.Inventors: Yasuaki Yamamoto, Etsuo Fukuchi
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Publication number: 20090093576Abstract: Disclosed are propylene polymer compositions comprising a propylene polymer, a polyolefin elastomer, a fluoropolymer, and an optional filler. Said propylene polymer compositions have a good balance of stiffness and toughness, especially low temperature toughness, with improved flow marks and/or gloss in injection molded articles.Type: ApplicationFiled: August 11, 2006Publication date: April 9, 2009Inventors: Michael Ballot, Frederic Rabain, Franciscus Krabbenborg, David Medlin
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Publication number: 20090073356Abstract: A color filter ink is adapted to be used to manufacture a color filter by an inkjet method. The color filter ink includes a colorant, a resin material, and a liquid medium that dissolves and/or disperses the colorant. The resin material includes a first polymer and a second polymer. The first polymer includes at least a first epoxy-containing vinyl monomer as a monomer component, and the second polymer includes at least a fluoroalkyl- or fluoroaryl-containing vinyl monomer as a monomer component, which is absent from the first polymer.Type: ApplicationFiled: September 2, 2008Publication date: March 19, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Hidekazu Moriyama, Masaya Shibatani, Hiroshi Kiguchi
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Patent number: 7488770Abstract: A polychloroprene latex is provided with excellent adhesive strength, particularly for an EVA material, by dissolving an ethylene/vinyl acetate copolymer in a chloroprene monomer alone or in a mixture of a chloroprene monomer and a monomer copolymerizable with chloroprene to prepare a monomer solution, which is emulsified and dispersed in an aqueous solution containing an emulsifier and/or a dispersant, followed by polymerization to produce a polychloroprene latex. The obtained polychloroprene latex can provide improved adhesive strength particularly for an EVA material.Type: GrantFiled: May 21, 2004Date of Patent: February 10, 2009Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Kosuke Watanabe, Motohiro Ose