Fluorocarbon Containing Patents (Class 442/94)
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Patent number: 6541402Abstract: An improved fabric for use in applications such as furniture upholstery is provided which possesses desirable flexibility, cleanability, and fluid resistant properties. The fabric includes a textile substrate treated with a fluorochemical stain resist agent. The treated textile substrate is covered substantially on the back with a layer of extrusion coated thermoplastic polymer which is pressed at least partially into the fabric substrate. A process for forming the fluid shield fabric according to the present invention is also provided. Preferably, the fabric is comprised of solution dyed nylon and the polymeric material is ethylene methyl acrylate polymer.Type: GrantFiled: July 25, 2000Date of Patent: April 1, 2003Assignee: Milliken & CompanyInventors: William Carl Kimbrell, Jr., Thomas E. Godfrey
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Publication number: 20020160675Abstract: The present invention relates to textile treatment compositions for imparting desirable characteristics durably to textile fibers and fabrics, including softness, hydrophobicity, oleophobicity, surface lubricity, abrasion resistance, tear resistance, improved drape, and pilling resistance. More particularly, in one embodiment, the invention is directed to preparations that comprise a carboxylate-functionalized fluorinated polymer and a catalyst that is capable of forming reactive anhydride rings between carboxyl groups on the polymer. In another embodiment, the invention is directed to preparations comprising a polymeric softener having at least one anhydride functional group or at least one reactive group capable of forming an anhydride functional group, together with a catalyst for forming anhydrides from the reactive group or groups. In either embodiment, the resulting reactive anhydride rings bind to substrates, such as textiles and other webs, having free sulfhydryl, alcohol, or amine groups.Type: ApplicationFiled: March 6, 2002Publication date: October 31, 2002Applicant: Nano-Tex, LLCInventors: Matthew R. Linford, David S. Soane, David A. Offord, William Ware
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Publication number: 20020137415Abstract: Semi-bleached to bleached sulfonated aromatic condensation resin alone or in combination with a semi-soluble methacrylic polymer of high molecular weight provides improved resistance to staining by acid colorants in a fibrous polyamide or wool substrate.Type: ApplicationFiled: March 19, 2002Publication date: September 26, 2002Inventor: Yassin M. Elgarhy
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Patent number: 6455447Abstract: A paper machine substrate modified to resist contamination by adhesive materials. The paper machine substrate includes: a paper machine substrate; and an active agent that is grafted to the surface of the paper machine substrate to lower the surface energy of the paper machine substrate so that the substrate resists contamination by adhesive material. The papermachine substrate may be made by a process that includes the steps of: providing a paper machine substrate; applying an active agent to the paper machine substrate; and exposing the paper machine substrate to greater than about 2 million rads (Mrad) of radiation to cause a reaction between the active agent and the substrate so the active agent becomes joined to the substrate. The active agent may be a fluorinated monomer, a fluorinated polymer, a perfluorinated polymers, or a polyalkyl siloxane.Type: GrantFiled: December 15, 1999Date of Patent: September 24, 2002Assignee: Kimberly-Clark CorporationInventors: Russell Frederick Ross, Ali Yahiaoui
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Patent number: 6395655Abstract: Semi-bleached to bleached sulfonated aromatic condensation resin alone or in combination with a semi-soluble methacrylic polymer of high molecular weight provides improved resistance to staining by acid colorants in a fibrous polyamide or wool substrate.Type: GrantFiled: December 17, 1999Date of Patent: May 28, 2002Assignee: Trichromatic Carpet Inc.Inventor: Yassin M. Elgarhy
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Patent number: 6383633Abstract: A fluorochemical composition is described comprising a polymer derived from a fluorochemical urethane (meth)acrylate monomer. The fluorochemical composition is useful for imparting stain release properties to a substrate.Type: GrantFiled: September 24, 1999Date of Patent: May 7, 2002Assignee: 3M Innovative Properties CompanyInventors: Kathy E. M. L. A. Allewaert, Pierre J. Vander Elst
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Publication number: 20020034902Abstract: There is provided a woven fabric for use in endovascular grafting, said fabric being biostable, composed of substantially non-elastomeric yarn, and expansible in at least one yarn direction, preferably the weft direction. Expansibility of the fabric is achieved by introducing non-linearity into a yarn (such as polyester or polytetrafluoroethylene) used in weaving the fabric. The non-linear yarn is maintained in that form by an agent which may itself be a yarn. Following fabric formation resilience is advantageously imparted to the non-linear yarn prior to release of the agent. In a preferred embodiment the yarn is polyester and is crimped or twisted around the agent which is a PVA yarn. After weaving, the fabric is washed in hot water to heat-set the water insoluble yarn in its non-linear form and to selectively dissolve the agent. An endovascular graft comprising the fabric of the invention is also described.Type: ApplicationFiled: January 12, 1999Publication date: March 21, 2002Inventor: MICHAEL GERVASE LITTON
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Patent number: 5965232Abstract: A composite floor covering having an upper layer of a decorative fabric, a dimensionally stabilizing intermediate layer, and an optional lower cushioning layer has at least the upper surface of the decorative fabric coated with a protective polymeric coating in a manner such that the hand of the decorative fabric layer is substantially retained. The materials of the fabric layer, stabilizing layer, and cushioning layer (if provided) as well as the form of attachment therebetween, cooperate to render the floor covering substantially impervious to liquid.Type: GrantFiled: October 4, 1996Date of Patent: October 12, 1999Assignee: E.I. du Pont de Nemours & Co., Inc.Inventor: Yashavant Vinayak Vinod
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Patent number: 5938007Abstract: A conveying belt has a core and a canvas layer attached to the core. The canvas layer has a first surface facing the core and a second surface facing oppositely to the first surface. The canvas layer has a thickness between the first and second surfaces. The canvas layer is treated with fluororesin so that the second surface is impregnated with fluororesin and only part of the thickness between the first and second surfaces is impregnated with fluororesin.Type: GrantFiled: October 20, 1997Date of Patent: August 17, 1999Assignee: Mitsuboshi Belting Ltd.Inventors: Kazutoshi Fujihiro, Yoshinori Furukawa, Hiroyuki Ito
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Patent number: 5899783Abstract: A fabric possessing both cleanability and fluid resistant properties is provided which can, if desired, be transfer printed. The fabric includes a textile substrate treated with a fluorochemical stain resist agent. The treated textile substrate is covered substantially on the back with a layer of extrusion coated thermoplastic polymer which is pressed at least partially into the fabric substrate. A process for forming the fluid shield fabric according to the present invention is also provided.Type: GrantFiled: February 12, 1997Date of Patent: May 4, 1999Assignee: Milliken & CompanyInventors: William Carl Kimbrell, Jr., Christopher Todd Usher
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Patent number: 5879408Abstract: Stainproofing properties are imparted to a cellulose fiber by 1) esterifying a part of hydroxyl groups of the cellulose fiber in a heterogeneous reaction system and 2) subjecting the partially esterified cellulose fiber to a stainproofing treatment with an aqueous solution or emulsion of a copolymer having repeating units derived from a fluroalkyl group-containing polymerizable compound and a compound represented by the general formula:CH.sub.2 .dbd.CR.sup.1 COO--(XO).sub.m --(YO).sub.n --R.sup.2( 1)wherein X is --CH(CH.sub.3)--CH.sub.2 -- or --CH.sub.2 --CH(CH.sub.3)--; Y is --CH.sub.2 CH.sub.2 --; R.sup.1 is a hydrogen atom or a methyl group; R.sup.2 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; and each of m and n is an integer of 0 to 50, provided that the total of m and n is an integer of 1 to 70.Type: GrantFiled: June 12, 1997Date of Patent: March 9, 1999Assignee: Daikin Industries Ltd.Inventors: Motonobu Kubo, Takashi Enomoto
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Patent number: 5880043Abstract: There is described a fiber-reinforced material composed of a sheetlike textile material and a thermoset resin with a fiber content of from 30 to 70% by weight, at least 30% of the fiber being synthetic fiber.The thermoset resin is preferably a phenolic resin which contains up to 25% by weight of a fluoropolymer.The sheetlike textile material is preferably 100% synthetic fiber, in particular polyacrylonitrile fiber.There are also described a prepreg formed from the textile material and the thermosetting resin and the process for producing these articles and the use of the material for producing construction elements, in particular for hydraulic systems, by application of mechanical shaping processes.Type: GrantFiled: November 1, 1996Date of Patent: March 9, 1999Assignee: Hoechst AktiengesellschaftInventors: Georg Michael Lorenz, Elke Gebauer, Ulrich Schuster, Manfred Tschacher, Burghard Schonrogge
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Patent number: 5759924Abstract: An improved translucent architectural fabric reinforced fluoroplastic composite is described exhibiting a transmission of normally incident visible light of at least about 23%, and when subjected to 1:1 biaxial loads up to 25% of the uniaxial tensile breaking strength of the fabric, exhibits a biaxial elongation value in the warp direction that is greater than 0 but less than 1.0%, and a biaxial elongation value in the fill direction that is greater than biaxial elongation value in the warp direction but less than 10%.Type: GrantFiled: October 18, 1996Date of Patent: June 2, 1998Assignee: Chemfab CorporationInventor: Katherine Mary Sahlin
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Patent number: 5756181Abstract: A method for imparting soil resistance to unscoured carpets, and a carpet treated in accordance with the method, are provided. In accordance with the method, a substrate comprising unscoured carpet fibers is treated with the ammonium salt of a polycarboxylic acid, such as an ammonium salt of a hydrolyzed styrene/maleic anhydride copolymer. The treated substrate is found to have enhanced water and oil repellency in both heat cured and room temperature drying conditions.Type: GrantFiled: July 23, 1996Date of Patent: May 26, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Shou-Lu G. Wang, Irvin F. Dunsmore, Robert F. Kamrath, John C. Chang
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Patent number: 5756407Abstract: A treated fibrous polyamide substrate having durable resistance to staining by acid colorants comprising a fibrous polyamide substrate having applied thereto an aqueous solution of a sulfonated, phosphated resol resin; which aqueous solution may include a methacrylic polymer or copolymer and a fluorochemical; and the method of treating said substrate with the solution to render it durable to staining by acid colorants.Type: GrantFiled: October 9, 1996Date of Patent: May 26, 1998Assignee: Trichromatic Carpet Inc.Inventors: Yassin M. Elgarhy, Barry R. Knowlton
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Patent number: 5753569Abstract: Substrates which have been provided with an oil-, water- and soil-repellant treatment from the group consisting of naturally occurring and synthetic textiles and their mixtures, leather, mineral substances, thermoplastic and thermosetting polymers and paper, comprise fluorine-containing compositions which comprise two components A and B.Component A is a fluorine-containing acrylic copolymer with the following comonomers:a) (meth)acrylates containing perfluoroalkyl groupsC.sub.n F.sub.2n+1 --X--O--CO--CR.sup.1 .dbd.CH.sub.2 (I),b) monomers from the group consisting of styrene, acrylonitrile, vinyl acetate, vinyl propionate and monomers,CH.sub.2 .dbd.CR.sup.4 --CO----OR.sup.5 (II),c) monomers ##STR1## and d) monomersCH.sub.2 .dbd.CR.sup.11 COO--CH.sub.2 CH.sub.2 N(R.sup.9, R.sup.10) (IVa)or in quaternized form?CH.sub.2 .dbd.CR.sup.11 --COO--CH.sub.2 CH.sub.2 N(R.sup.9 R.sup.10 R.sup.12)!.sup..sym. Y.sup..crclbar. (IVb)or in N-oxidized form ##STR2## or of the formulaCH.sub.2 .dbd.CR.sup.13 --COO.sup..sym. Z.sup.Type: GrantFiled: November 17, 1995Date of Patent: May 19, 1998Assignee: Bayer AktiengesellschaftInventors: Gisbert Michels, Hans-Albert Ehlert, Uwe Zweering
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Patent number: 5750445Abstract: The present invention comprises a process for providing soil resistance and resistance to staining by acid dyes to fibers and textiles by simultaneous or sequential application of a sulfonated phenol-formaldehyde condensation product and partial fluoroesters or fluorothioesters formed from copolymers of maleic anhydride and perfluoroalkyl alcohols or perfluoroalkyl thiols.Type: GrantFiled: May 9, 1997Date of Patent: May 12, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Engelbert Pechhold, Peter Michael Murphy
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Patent number: 5747392Abstract: Water repellant, stain resistant, weatherable, and transfer printable coated fabrics are provided by coating synthetic woven textile fabric with an IPN (interpenetrating polymer network)--containing aqueous coating which is composed of both acrylic and polyurethane lattices also including a crosslinker. Upon elevated temperature cure, the coating forms an interpenetrating polymer network and provides a non-leather like fabric with the hand and feel of high quality woven fabric with the ability to transmit water vapor while being virtually totally water repellant.Type: GrantFiled: November 19, 1996Date of Patent: May 5, 1998Assignee: Hi-Tex, Inc.Inventors: Han Xiong Xiao, Peng Geng, Kurt C. Frisch
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Patent number: 5736468Abstract: A treated fibrous polyamide substrate having durable resistance to staining by acid colorants comprising a fibrous polyamide substrate having applied thereto an aqueous solution of a sulfonated, phosphated resol resin and a methacrylic polymer or copolymer of high number average molecular weight, and preferably high weight average molecular weight and optionally, fluorochemical; and the method of treating said substrate with the solution to render it durable to staining by acid colorants.Type: GrantFiled: January 21, 1997Date of Patent: April 7, 1998Assignee: Trichromatic Carpet Inc.Inventor: Yassin M. Elgarhy
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Patent number: 5688580Abstract: An element for lining the interior surface of a tunnel, which comprises a composite panel in which a fibrous layer is laminated over a hard substrate, and a fluoropolymer surface layer is laminated over said fibrous glass layer.Type: GrantFiled: February 16, 1996Date of Patent: November 18, 1997Assignee: Nisshin Chemical Industry, Co. Ltd.Inventor: Masafumi Fukumoto