Addition Polymer Is Perhalogenated Patents (Class 428/422)
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Patent number: 6908683Abstract: A peeling member for peeling a paper from a various types of rollers installed in an electrophotographic apparatus such as a copy machine and a laser beam printer is described. The peeling member comprises a peeling sheet, and a support member for supporting the peeling sheet, and the support member is adhered to the peeling sheet with laser spot welding. The peeling member suppresses waving of the peeling sheet, and adheres the peeling sheet with the support member uniformly.Type: GrantFiled: August 28, 2001Date of Patent: June 21, 2005Assignee: NTN CorporationInventor: Masaaki Ohashi
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Patent number: 6908647Abstract: An anti-reflection film, having a low-refractive-index layer formed by hardening a composition, the composition containing a polysiloxane compound having a reactive organic functional group represented by formula 1, and a perfluoroolefin copolymer: wherein R1, R2, R3 and R4 each are a substituent having 1 to 20 carbon atoms; R1s, R2s, R3s or R4s each are the same or different; at least one of R1, R3 and R4 is the reactive organic functional group; x is an integer of 1?x?4; y is an integer of 10?y?500; z is an integer of 0?z?500; and the polysiloxane compound may be a random or block copolymer.Type: GrantFiled: May 7, 2003Date of Patent: June 21, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Tatsuhiko Obayashi, Takafumi Hosokawa
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Patent number: 6905754Abstract: The present invention relates to optical elements comprising fluorochemical surface treatments having the general structure Rf-[G]m(CH2)n—X wherein Rf is a fluorinated alkyl group, G is a divalent linking group selected from oxygen (—O—) and sulfonamido (—SO2R—), m is an integer ranging from 0 to 1, n is an integer ranging from 1 to 24, and X is polar group or polar group containing radical. The invention further relates to materials such as retroreflective sheetings, pavement markings and beaded projection screens comprising a binder and the surface treated optical elements.Type: GrantFiled: April 26, 2002Date of Patent: June 14, 2005Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Zhongxing Zhang, Zai-Ming Qiu
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Patent number: 6894105Abstract: Dyed fluoropolymers that are useful, for example, as conformal coatings comprise the reaction product of one or more fluorochemical (meth)acrylate monomers and one or more (meth)acrylate functional dyes. Coating compositions comprise the dyed fluoropolymer and articles are coated with the coating composition.Type: GrantFiled: July 26, 2002Date of Patent: May 17, 2005Assignee: 3M Innovatives Properties CompanyInventors: Michael J. Parent, Patricia M. Savu, Harry E. Johnson, David B. Olson
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Patent number: 6895208Abstract: The present invention relates to a sliding member for an electrophotographic apparatus using a non-porous sheet having a sliding surface including at least a fluorocarbon resin as a sheet-like member interposed between a press member A and a resin film tubular body. The invention also relates to an image fixing device using the sliding member.Type: GrantFiled: July 25, 2003Date of Patent: May 17, 2005Assignee: Fuji Xerox Co., Ltd.Inventors: Kenji Nakatogawa, Yousuke Tsutsumi, Jun Kimura
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Patent number: 6890891Abstract: A data/information storage and retrieval medium, comprising: (a) a substrate including a surface; and (b) a thin layer or film of an in situ networked or cross-linked polymeric lubricant thin film bonded to the surface, the thin layer or film of polymeric lubricant obtained from a polymerizable perfluoropolyether derivative by supplying thermal or infra-red (IR) energy thereto.Type: GrantFiled: September 5, 2002Date of Patent: May 10, 2005Assignee: Seagate Technology LLCInventors: Jianwei Liu, Michael Joseph Stirniman, Jing Gui
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Patent number: 6890657Abstract: A surface contacting member for toner fusing systems and processes. This surface contacting member has a fluoroelastomer surface layer containing amorphous silica that has been surface treated with at least one organoaminosilane.Type: GrantFiled: June 12, 2001Date of Patent: May 10, 2005Assignee: Eastman Kodak CompanyInventors: Jerry A. Pickering, Stephen V. Davis, Theodora Miller
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Patent number: 6881460Abstract: A multilayer molding having a polyamide-based resin as an outer layer, the multilayer molding including a fluorine-containing resin as an inner layer, as well as a resin laminate which can form the multilayer molding. The resin laminate has a layer (A) including a polyamide-based resin and a layer (B) including a fluorine-containing ethylenic polymer laminated to the layer (A), the polyamide-based resin having an amine value of 10 to 60 equivalents/106 g, and the fluorine-containing ethylenic polymer being a fluorine-containing ethylenic polymer having a carbonyl group.Type: GrantFiled: February 13, 2001Date of Patent: April 19, 2005Assignee: Daikin Industries, Ltd.Inventors: Takeshi Inaba, Taketo Kato, Shigehito Sagisaka, Takuya Arase, Tetsuo Shimizu
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Patent number: 6881357Abstract: Provided a transparent conductive layer and an image display device employing the transparent conductive layer. The transparent conductive layer includes a conductive layer containing a metal oxide and a protective layer formed on the conductive layer. The protective layer contains a hydrolyzed and polycondensated product of silicon alkoxide and at least one of mercapto compound and its hydrolyzed and polycondensated product.Type: GrantFiled: February 12, 2002Date of Patent: April 19, 2005Assignee: Samsung SDI Co., Ltd.Inventors: Sang-min Lee, Ji-won Lee, Kang-il Seo, Jae-man Choi
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Patent number: 6878453Abstract: A multilayer comprising at least one layer A) of at least one thermoprocessable polymer containing at least 5% by weight of chlorinated polyvinyl chloride (CPVC) and one layer B) based on polyamides having an amount of —NH2 end groups in the range 20-300 ?eq/g.Type: GrantFiled: May 31, 2002Date of Patent: April 12, 2005Assignee: Ausimont S.p.A.Inventors: Julio A. Abusleme, Claudia Manzoni, Giambattista Besana
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Patent number: 6878440Abstract: A fluorine-containing material substrate having coated thereon a pressure sensitive adhesive is irradiated with an electron beam, forming a chemical bond between substrate and the pressure sensitive adhesive. Furthermore the pressure sensitive adhesive can be cured by polymerization and also the substrate can be crosslinked.Type: GrantFiled: June 23, 2000Date of Patent: April 12, 2005Assignee: 3M Innovative Properties CompanyInventors: Keizo Yamanaka, Tatsuo Fukushi, Yorinobu Takamatsu
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Patent number: 6872819Abstract: Biomaterials are disclosed comprised of biodegradable, biocompatible, and bioabsorbable non-woven fabric materials for use in surgery for the guided regeneration of tissues. The non-woven fabric materials are comprised of threads embedded in a matrix, wherein both the matrix and the threads can be comprised of esters of hyaluronic acid, used singly or in combination, or esters of hyaluronic acid in combination with esters of alginic acid or other polymers.Type: GrantFiled: May 27, 1998Date of Patent: March 29, 2005Assignee: Fidia Advanced Biopolymers S.r.l.Inventors: Alessandra Pavesio, Massimo Dona' , Lanfranco Callegaro
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Patent number: 6869682Abstract: The invention relates to compositions useful for bonding fluoropolymer to substantially non-fluorinated polymer. The compositions of the invention comprise a substantially non-fluorinated polymer or a mixture of said polymers, a base, and a crown ether catalyst. Another aspect of the invention is an article comprising the above composition adhered to a fluoropolymer and methods of making said article.Type: GrantFiled: April 22, 2004Date of Patent: March 22, 2005Assignee: 3M Innovative Properties CompanyInventor: Naiyong Jing
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Patent number: 6863974Abstract: A non-stick coating formed on a substrate comprising a primer composition and a topcoat composition, wherein the primer composition is between the topcoat composition and substrate. The primer composition comprises at least one heat resistant adhesion promoter. The topcoat composition comprises at least one fluorocarbon resin and at least one heat resistant adhesion promoter other than a fluoropolymer that may be the same or different than the adhesion promoter of the primer composition. There are inorganic inert particles with an average particle size of at least about 10 micrometers contained in the primer composition. The invention includes the method for forming the coating.Type: GrantFiled: September 12, 2003Date of Patent: March 8, 2005Assignee: Akzo Nobel Coatings International B.V.Inventors: Shatish Shah, Henry Padilla
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Patent number: 6861148Abstract: A preform from which plastic optical fiber is to be drawn in an infrared heating furnace has a core portion with either a step index or graded-index profile, and a cladding layer surrounding the core portion, the cladding layer. A jacket layer surrounds the cladding layer and is also made of an at least partially fluorinated jacket material.Type: GrantFiled: November 22, 2002Date of Patent: March 1, 2005Assignee: Chromis Fiberoptics, LLCInventor: Whitney White
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Patent number: 6849314Abstract: Disclosed are various fluoropolymer blend combinations and multilayer articles comprising a blend in a first layer and a second layer comprising a polymer bonded to the first layer. The invention also provides an article comprising a first layer comprising a blend of two or more fluoropolymers, and a second layer bonded to the first layer, the second layer comprising a partially-fluorinated thermoplastic polymer, a perfluorinated thermoplastic polymer, or a combination thereof. The invention also provides an article comprising a first layer comprising a blend of two or more fluoropolymers, at least one of which comprises a partially-fluorinated thermoplastic polymer, and optionally at least one perhalogenated polymer, and a second layer bonded to the first layer, the second layer comprising an at least partially-fluorinated thermoplastic polymer. The invention also provides processes for preparing blended fluoropolymers and multilayer articles comprising a fluoropolymer layer.Type: GrantFiled: April 18, 2002Date of Patent: February 1, 2005Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Tatsuo Fukushi, Attila Molnar, David B. Bilbrey, Mark W. Muggli, Andrew M. Hine, Kathryn M. Spurgeon, Christopher A. Haak
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Patent number: 6849339Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a branched or linear styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a tackifier resin, preferably a terpene resin. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.Type: GrantFiled: November 27, 2001Date of Patent: February 1, 2005Assignee: Guardian Industries CorporationInventors: Subir K. Dey, Subhash H. Patel
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Patent number: 6835429Abstract: A part for a motor vehicle intended to come into contact with hydrocarbons has a polytetrafluoroethylene coating (3) adapted to make the part (1) impermeable. Use of a polytetrafluoroethylene coating for making impermeable parts of a motor vehicle on the fuel system, in order to limit the emission of hydrocarbons through these parts.Type: GrantFiled: March 29, 2001Date of Patent: December 28, 2004Assignee: I.T.W. de FranceInventor: Michel Roger
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Patent number: 6833178Abstract: The present invention provides a multilayer laminated structure comprising a polyimide layer coated on at least one of its faces in FEP, and at least one layer of PTFE bonded to said FEP-coated polyimide layer, said layers being formed by tapes that are bonded together while hot with pressure being applied, the or each PTFE tape being made of green PTFE obtained by lubricated extrusion and being united with the FEP-coated polyimide tape at a temperature that is lower than the sintering temperature of PTFE.Type: GrantFiled: August 22, 2002Date of Patent: December 21, 2004Assignee: Compagnie Plastic OmniumInventor: Chor-Keung Yeung
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Patent number: 6830808Abstract: Cured perfluoroelastomer articles are disclosed which have improved surface characteristics. The articles are coated with a thin durable film comprising a polysiloxane and urethane oligomer which reduces surface stickiness, while maintaining the sealing properties of the article.Type: GrantFiled: July 2, 2003Date of Patent: December 14, 2004Assignee: Dupont Dow Elastomers, LLCInventors: Kaori Iwamoto, Bunichi Rai, Shinichi Sogo
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Patent number: 6828284Abstract: A composition that is or comprises a phosphorus-, perfluoropolyether-, and perfluoroalkyl-containing compound is provided. The compound comprises either (i) mono- or polyalkylene oxide linking groups between the phosphorus and the fluorocarbon group, or (ii) no linking group between the phosphorus and fluorocarbon group, or (iii) individual mixtures of (i) and (ii); and the fluorocarbon group can be the perfluoropolyether or perfluoroalkyl group. The compound can also be a partially esterified phosphate, a partially esterified phosphonate, a salt of a partially esterified phosphate, a salt of a partially esterified phosphonate, or mixtures of two or more thereof.Type: GrantFiled: August 6, 2001Date of Patent: December 7, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Jon Lee Howell, Erik William Perez
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Patent number: 6821626Abstract: A fuser member comprising a core and a layer overlying the core, the layer including a cured fluorocarbon random copolymer having subunits of: —CH2CF2)x—, —(CF2CF(CF3)y—, or —(CF2CF2)z—, wherein x is from 30 to 90 mole percent, y is from 10 to 70 mole percent, z is from 0 to 34 mole percent; and x+y+z equals 100 mole percent; the layer further including particulate filler having zinc oxide and yellow iron oxide.Type: GrantFiled: November 29, 1999Date of Patent: November 23, 2004Assignee: NexPress Solutions LLCInventors: Stephen V. Davis, Jerry A. Pickering, Nataly Boulatnikov
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Patent number: 6818717Abstract: Novel fluorine-containing paper sizes which impart oil and grease resistance to paper and soil-release properties to textile products are described which are the copolymerization products of (a) a perfluoroalkyl-substituted (meth)acrylate or (meth)acrylamide, (b) a secondary- or tertiary-amino or quaternary ammonium group-containing (meth)acrylate or (meth)acrylamide, (c) vinylidene chloride and, optionally, d) other copolymerizable nonfluorinated vinyl monomers.Type: GrantFiled: February 21, 2003Date of Patent: November 16, 2004Assignee: Ciba Specialty Chemicals CorporationInventor: Shobha Kantamneni
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Publication number: 20040224165Abstract: In a fixing member (10) having an elastic layer (2) of heat resistance rubber provided on a substrate 1 and a separation layer (3) of fluorocarbon resin provided on the elastic layer, the fluorocarbon resin is that a tensile strength of a 30 &mgr;m coating film burned at 340° C. is equal or greater than 25 MPa. The heat resistance rubber includes, for example, silicone rubber or fluorosilicone rubber as a major component. The fluorocarbon resin includes PFA as a major component, for example.Type: ApplicationFiled: February 24, 2004Publication date: November 11, 2004Inventors: Tsuneaki Kondoh, Kyoichi Ashikawa, Takuzo Kurachi, Norihiko Aze, Kohji Kamiya, Takayuki Yoshii, Nozomu Takahata, Atsushi Ishibe, Hidenori Machida
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Patent number: 6811883Abstract: Auto-adhesive display film comprising at least one electrically charged, dielectric layer (2). A screen layer (3), which is adapted to form a barrier to the electric field, is fixed to one surface of the dielectric layer (2). This display support does not attract dust particles and is specifically adapted to be printed sheet by sheet.Type: GrantFiled: May 6, 2003Date of Patent: November 2, 2004Assignee: JLJInventors: Jacques Lewiner, Jean Lionel Georges Martin
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Patent number: 6808802Abstract: This invention comprises a coating for equipment parts, particularly including chemical mechanical polishing equipment parts and other equipment that may experience wear or contaminant build-up. The coating includes a fluoropolymer based material that may also contain a colorant or pigment to visually contrast with particles or slurry that is deposited on the parts during use. In some embodiments, multiple layers are applied in contrasting colors so that when a layer closer to the surface begins to wear a lower layer will be readily visible, signaling that re-coating or replacement will soon be required.Type: GrantFiled: July 18, 2002Date of Patent: October 26, 2004Assignee: NxEdge, Inc.Inventor: David Mark Lynn
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Patent number: 6805959Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a maleic anhydride grafted styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a diamine, especially 2-methylpentamethylenediamine. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.Type: GrantFiled: November 27, 2001Date of Patent: October 19, 2004Assignee: Guardian Industries CorporationInventors: Subir K. Dey, Subhash H. Patel, Marino Xanthos
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Patent number: 6806330Abstract: The invention is an amine-organoborane complex wherein the organoborane is a trialkyl borane and the amine is an amine having an amidine structural component; an aliphatic heterocycle having at least one nitrogen in the heterocyclic ring wherein the heterocyclic compound may also contain one or more nitrogen atoms, oxygen atoms, sulfur atoms, or double bonds in the heterocycle; a primary amine which in addition has one or more hydrogen bond accepting groups wherein there is at least two carbon atoms, preferably three, between the primary amine and the hydrogen bond accepting group, such that due to inter- or intramolecular interactions within the complex the strength of the B—N bond is increased; or a conjugated imine. Preferred hydrogen bond accepting groups include the following: a secondary amine, a tertiary amine, an ether, a halogen, a polyether group or a polyamine group.Type: GrantFiled: December 17, 1999Date of Patent: October 19, 2004Assignee: Dow Global Technologies Inc.Inventors: Mark F. Sonnenschein, Steven P. Webb, Nelson G. Rondan
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Patent number: 6803098Abstract: A synthetic resin molded material characterized in that a thin film made of an oxide of at least one metal selected from the group consisting of Si, Zr, Ti, Ta, Hf, Mo, W, Nb, Sn, In, Al and Zn, is formed by a dry method on a synthetic resin substrate having hydrophobicity, and a method for its production.Type: GrantFiled: July 7, 2003Date of Patent: October 12, 2004Assignee: Asahi Glass Company Ltd.Inventors: Kazuo Harada, Atsushi Hayashi, Tatsuo Momii, Teruo Takakura, Seitoku Kaya
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Patent number: 6793960Abstract: A medical device comprising a substrate having a plasma polymerized functionally bonded to at least a portion of the substrate. A superoxide dismutase mimic agent having a complimentary functional group to the plasma polymerized functionality is bonded to the portion of the substrate by bonding to the plasma polymerized functionality.Type: GrantFiled: December 3, 2001Date of Patent: September 21, 2004Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Eugene T. Michal, Murthy Simhambhatla, Charles D. Claude
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Patent number: 6794469Abstract: A fluorine-containing copolymer of the following formula. A film-forming composition containing the copolymer. An anti-reflection film having a low-refractive-index layer containing the copolymer. An anti-reflection film having the above anti-reflection film on a transparent support. An image display device having the anti-reflection film.Type: GrantFiled: April 12, 2002Date of Patent: September 21, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Tatsuhiko Obayashi, Hirohisa Hokazono, Takafumi Hosokawa
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Patent number: 6794027Abstract: To provide the method of forming the thin coating film of fluorine-containing polymer having heat resistance and non-sticking property by adhering directly to a substrate without lowering characteristics such as reflection and light transmission which the substrate has. The thin coating film is a film which comprises a continuous layer of fluorine-containing polymer formed by adhering directly to the substrate and has a thickness of less than 3 &mgr;m, wherein the fluorine-containing polymer in the coating film has a hydrophilic functional group and a crystalline melting point of not less than 200° C.Type: GrantFiled: February 22, 2001Date of Patent: September 21, 2004Assignee: Daikin Industries, Ltd.Inventors: Takayuki Araki, Yoshito Tanaka, Masahiro Kumegawa
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Patent number: 6790526Abstract: Novel appliqués comprising oxyhalopolymer-adhesive composites wherein the adhesive layer of the composite is chemically bonded to reactive sites on at least one side of the oxyhalopolymer layer, possess superior peel strengths, resistance to delamination and protective properties, including protection of surfaces from lightning strike to seamless protective liners for tanks. The appliques are suitable for printing architectural designs thereon. Multilayered specialty appliqués can be fabricated from the above fundamental oxyhalopolymer-adhesive composite structure, including layered adhesives for encapsulating tridimensional mechanical and electrical devices, such as RF, or microwave sensitive antennae for transmitting and receiving communications, providing protection from environmental electromagnetic effects (E3), shock and impact resistance, multidimensional deformable structures; housing for temperature control systems, etc.Type: GrantFiled: August 2, 2002Date of Patent: September 14, 2004Assignee: Integument Technologies, Inc.Inventors: Terrence G. Vargo, Timothy S. Koloski, John M. Brupbacher, Andrew W. Dalgleish, Garner S. Holdsworth
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Patent number: 6776827Abstract: A method and solution to activate and metallize the surface of a fluorocarbon material, suitable for circuit boards is disclosed. The surface of fluorocarbon materials is both hydrophobic and oleophobic, and highly inert and repellent to oils, dyes, adhesive and coatings. The method of the present invention makes such fluorocarbon materials wettable with metallizing solutions and chemicals, and also bondable with adhesives and coatings. The method comprises contacting said fluorocarbon surface with a mixture comprising a cyclic amide, a quaternary ammonium compound, a cationic or nonionic surfactant, a glycolether and an organic acid.Type: GrantFiled: September 23, 2002Date of Patent: August 17, 2004Inventor: Syed M. Hasan
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Patent number: 6770372Abstract: Polymer compositions based on vinylidene fluoride resins which are particularly suitable for the manufacture of pipes for conveying hot hydrocarbons under pressure, comprising by weight; (A) from 60 to 80% of at least one PVDF homopolymer; (B) from 20 to 40% of at least one thermoplastic copolymer of vinylidene fluoride (VF2) and of at least one other fluoromonomer (for example hexafluoropropylene, chlorotrifluoroethylene or trifluoroethylene), containing approximately from 5 to 25% of this other monomer; and (C) a plasticizer, in proportions of 5 to 20% [relative to the total weight of the polymers (A) and (B)], preferably dibutyl sebacate or a polyester of molecular mass of between 1500 and 5000.Type: GrantFiled: June 18, 2001Date of Patent: August 3, 2004Assignee: Solvay (Société Anonyme)Inventors: Pierre Lasson, Yves-Julien Lambert, Yves Vanderveken, Nestor Maquet
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Patent number: 6768581Abstract: A coated optical lens includes a lens element and a coating on the surface of the lens element. The coating exhibits a substantially balanced reflectance from the center to a radius proximate the edge of the lens element. The term “substantially balanced reflectance” means that where the thickness of the coating varies across the surface of the lens, the lightness, hue and chroma of the reflectance vary in a balanced manner such that variations in visual appearance are either imperceptible or generally acceptable to an observer. For example, variations in chromatic attributes, such as hue, from the center to the edge of the lens may be balanced by a reduction in lightness from the center to the edge. Preferably, the lens element includes a surface of high curvature upon which the balanced reflectance coating is deposited.Type: GrantFiled: August 14, 2001Date of Patent: July 27, 2004Assignee: Sola International Holdings Ltd.Inventors: Brandon Yip, Brian Douglas Adams, Paraic Begley
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Patent number: 6767626Abstract: This invention concerns the application of substantially amorphous fluoropolymer compositions to stone so as to protect the stone from the deleterious effects of water and pollution.Type: GrantFiled: October 21, 2002Date of Patent: July 27, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: William Howard Tuminello, Robert Clayton Wheland
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Patent number: 6759131Abstract: A composition containing a non-flammable chlorofluoro-olefin copolymer having a crystallinity index less than about 10% and a weight-average molecular weight greater than about 1,000,000 daltons, wherein the copolymer has at least two comonomer units of the formula: CX2CYA wherein each X is independently selected from H, Cl and F; Y is selected from H, Cl, F, O(CZ2)nCZ3, (CZ2)nCZ3, (OCZ2CZ2)nCZ3 and (O(CZ2)n)nCZ3, wherein each n is independently from about 1 to about 12 and each Z is independently selected from H, Cl and F; and A is selected from H, Cl and F, provided that for at least one comonomer unit, at least one of A, Y, either X or any Z is Cl. Substrates coated with the copolymer compositions are also disclosed.Type: GrantFiled: February 1, 2002Date of Patent: July 6, 2004Assignee: Honeywell International Inc.Inventor: Thomas F. McCarthy
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Patent number: 6753071Abstract: A membrane that reduces the rate at which a therapeutic substance is released from an implantable medical device, such as a stent, is disclosed.Type: GrantFiled: September 27, 2001Date of Patent: June 22, 2004Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Stephen D. Pacetti
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Patent number: 6753376Abstract: An aqueous water- and oil-repellent dispersion containing: (A) a homopolymer or copolymer containing at least one polymerizable compound having a perfluoroalkyl or perfluoroalkenyl group and an acrylate or methacrylate group, or a copolymer containing said polymerizable compound and another compound copolymerizable therewith, (B) an organic solvent which is tripropylene glycol, and (C) a surfactant, has durable water- and oil-repellency and excellent storage stability.Type: GrantFiled: July 31, 2001Date of Patent: June 22, 2004Assignee: Daikin Industries Ltd.Inventors: Masayuki Yamana, Tsukasa Aga, Masahiro Miyahara, Masaki Fukumori, Ryosuke Hara
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Publication number: 20040110011Abstract: A non-stick coating formed on a substrate comprising a primer composition and a topcoat composition, wherein the primer composition is between the topcoat composition and substrate. The primer composition comprises at least one heat resistant adhesion promoter. The topcoat composition comprises at least one fluorocarbon resin and at least one heat resistant adhesion promoter other than a fluoropolymer that may be the same or different than the adhesion promoter of the primer composition. There are inorganic inert particles with an average particle size of at least about 10 micrometers contained in the primer composition. The invention includes the method for forming the coating.Type: ApplicationFiled: September 12, 2003Publication date: June 10, 2004Inventors: Shatish Shah, Henry Padilla
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Patent number: 6743511Abstract: This invention relates to methods for manufacturing large PTFE parts by compression molding followed by sintering. The method comprises layering modified and unmodified PTFE in a mold, and compressing the layers to form a preform part. Once the preform parts are formed, they are assembled such that the areas of preform parts which are to be bonded together are the modified PTFE sections. The parts are then sintered and the modified PTFE sections bond together creating a strong, durable, bond.Type: GrantFiled: August 5, 2002Date of Patent: June 1, 2004Assignee: Coltec Industrial Products LLCInventors: Roxanne Dittrich, Taggart William Albert Mills
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Publication number: 20040101691Abstract: A preform from which plastic optical fiber is to be drawn in an infrared heating furnace has a core portion with either a step index or graded-index profile, and a cladding layer surrounding the core portion, the cladding layer. A jacket layer surrounds the cladding layer and is also made of an at least partially fluorinated jacket material.Type: ApplicationFiled: November 22, 2002Publication date: May 27, 2004Inventor: Whitney White
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Patent number: 6740375Abstract: A fluorine-containing adhesive material comprising a fluorine-containing ethylenic polymer having a carbonate group and/or a carboxylic acid halide group at a chain end or a side chain of the polymer, wherein a total of a number of the carbonate groups and/or carboxylic acid halide groups is at less than 150 per 1×106 main chain carbon atoms, can directly impart the firm adherability to a substrate such as a metal, a glass or a resin while maintaining excellent properties such as chemical resistance, solvent resistance, weatherability and soil releasability possessed by a fluorine-containing polymer.Type: GrantFiled: May 8, 2002Date of Patent: May 25, 2004Assignee: Daikin Industries, Ltd.Inventors: Shigehito Sagisaka, Taketo Kato, Takeshi Inaba, Takuya Arase, Tetsuo Shimizu
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Patent number: 6740412Abstract: Polymeric adhesive comprising a homogeneous mixture of at least three constituents: (a) at least one thermoplastic halogenated hydrocarbon polymer, (b) at least one copolymer of monoethylenic monomers which carry an alkyl carboxylate functional group and (c) at least one alpha-olefin polymer modified by the incorporation of at least one functional group chosen from a carboxyl, an acid anhydride, a hydroxyl and an epoxide. Process for the preparation of this polymeric adhesive and use of this polymeric adhesive in the preparation of structures with multiple polymeric layers. Structures with multiple polymeric layers comprising a layer (A) based on thermoplastic halogenated hydrocarbon polymer bonded to a layer (C) based on thermoplastic nonhalogenated polymer incompatible with (A) via a layer (B) based on this polymeric adhesive.Type: GrantFiled: July 9, 2001Date of Patent: May 25, 2004Assignee: Solvay (Societe Anonyme)Inventors: Jean-Marie Oreins, Vincent Thulliez, Guy Laurent, Fredy Declerck
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Publication number: 20040096667Abstract: A curable fluoropolyether rubber composition comprising (A) a straight-chain fluoropolyether compound having at least two alkenyl groups and a perfluoropolyether structure, (B) an organosilicon compound having at least two SiH groups, (C) a perfluoroparaffin or derivative in powder form, at least 80% by weight of which volatilizes off when held in a drier at 200° C. for 4 hours, and which has a melting point of at least 50° C., and (D) a hydrosilylation catalyst cures into a product that exhibits solvent resistance, chemical resistance, weather resistance, water repellency, oil repellency and heat resistance, and is improved in mold release and compression set.Type: ApplicationFiled: November 18, 2003Publication date: May 20, 2004Inventors: Yasuhisa Osawa, Hirofumi Kishita
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Patent number: 6737165Abstract: Melt-processible, thermoplastic poly(tetrafluoroethylene) (PTFE) compositions are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described.Type: GrantFiled: February 16, 2000Date of Patent: May 18, 2004Assignee: Omlidon Technologies LLCInventors: Paul Smith, Jeroen F. Visjager, Cees Bastiaansen, Theodorus Tervoort
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Patent number: 6737164Abstract: Composite materials for cooking apparatuses which are produced by applying, to a substrate, a material comprising a fluorine-containing polymer having an excellent adhesive property to the substrate without necessitating complicated steps and are excellent in heat resistance, non-sticking property, stain-proofing property, water- and oil-repelling property, stain-removing property, chemical resistance, rust-preventing property, antibacterial property, resistance to energy ray and abrasion resistance. The composite materials for cooking apparatuses are produced by applying, to the substrate, the material comprising a fluorine-containing ethylenic polymer having functional group which is prepared by copolymerizing (a) 0.05 to 30% by mole of at least one of fluorine-containing ethylenic monomers having at least one functional group selected from the group consisting of hydroxyl, carboxyl, a carboxylic salt group, a carboxylic ester group and epoxy, and (b) 70 to 99.Type: GrantFiled: September 3, 1999Date of Patent: May 18, 2004Assignee: Daikin Industries, Ltd.Inventors: Takayuki Araki, Yoshito Tanaka, Masahiro Kumegawa, Noritoshi Oka, Hisato Sanemasa, Tetsuo Shimizu
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Publication number: 20040091713Abstract: The present invention provides an adherable fluorine-containing material sheet, an adhesive fluorine-containing material sheet, an adhering method of a fluorine-containing material sheet, and an adhesion structure. In one aspect, on the surface of an electron beam non-degradable fluorine-containing material, an adherability-imparting layer is provided, between which a chemical bond is formed by electron beam irradiation.Type: ApplicationFiled: October 29, 2002Publication date: May 13, 2004Inventors: Toshihiro Suwa, Keizo Yamanaka
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Patent number: 6730385Abstract: A laminate, which is in the form of an O-ring, a square ring, a rubber roll, a diaphragm, a rubber hose, a rubber tube or a vial stopper, comprising a layer of a perfluororubber, a layer of other rubber and an adhesive layer containing a polyfunctional compound which adheres the rubber layers by vulcanization is produced by coating a polyfunctional compound on a surface of at least one of the perfluororubber layer or the other rubber layer, laminating the layers with the coated surface facing the other layer, and vulcanizing the layers to adhere them. Thereby, the adhesion strength between the layer of perfluororubber and the layer of the other rubber is improved.Type: GrantFiled: April 27, 2000Date of Patent: May 4, 2004Assignee: Daikin Industries, Ltd.Inventors: Hiroyuki Tanaka, Shoji Kawachi, Masanori Yamashita, Yoshihiro Shirai, Yutaka Ueta