Hydrocarbon Or Halohydrocarbon Patents (Class 162/157.5)
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Patent number: 11535957Abstract: The present invention relates to a method for producing a polyacrylonitrile-based fiber, wherein the method polymerizes a monomer mixture including an acrylonitrile-based monomer, a carboxylic acid-based comonomer, and an acrylate-based comonomer, wherein the acrylate-based comonomer includes the steps of producing a polyacrylonitrile-based copolymer so as to be included in an amount of 4 to 20 parts by weight based on 100 parts by weight of the monomer mixture, fiberizing the polyacrylonitrile-based copolymer, oxidizing and stabilizing the fiberized polyacrylonitrile-based copolymer, which may control the oxidation stabilization reaction, particularly the cyclization reaction. Accordingly, the energy consumption of the oxidation stabilization reaction may be reduced, economical efficiency of the production of polyacrylonitrile-based fiber may be obtained, and the physical and mechanical properties of the carbon fiber may be improved.Type: GrantFiled: November 22, 2017Date of Patent: December 27, 2022Assignee: LG CHEM, LTD.Inventors: Jeong Kyu Lee, Chang Hun Kim, In Young Song, Jeong Hun Cho, Jong Soo Do, Sung Joon Oh, Joon Hee Cho
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Patent number: 10975499Abstract: Various embodiments of the present invention relate to surface enhanced pulp fibers, various products incorporating surface enhanced pulp fibers, and methods and systems for producing surface enhanced pulp fibers. Various embodiments of surface enhanced pulp fibers have significantly increased surface areas compared to conventional refined fibers while advantageously minimizing reductions in length following refinement. The surface enhanced pulp fibers can be incorporated into a number of products that might benefit from such properties including, for example, paper products, paperboard products, fiber cement boards, fiber reinforced plastics, fluff pulps, hydrogels, cellulose acetate products, and carboxymethyl cellulose products. In some embodiments, a plurality of surface enhanced pulp fibers have a length weighted average fiber length of at least about 0.Type: GrantFiled: August 1, 2016Date of Patent: April 13, 2021Assignee: DOMTAR PAPER COMPANY, LLCInventors: Harshad Pande, Bruno Marcoccia
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Patent number: 10590601Abstract: Examples of a printable medium are disclosed herein. In one example, the printable medium includes an opaque substrate that is substantially free of polyvinyl chloride (PVC). The substrate includes a fabric core having I(x)/I0 equal to or less than 0.005, wherein I(x) is an intensity of light remaining at a distance, x, where x is the distance that light travels through the substrate, and wherein I0 is an initial intensity of light at x=0. The substrate further includes a discrete barrier layer disposed on the fabric core. The barrier layer includes a copolymer of ethylene and vinyl acetate having a polyethylene-to-vinyl acetate ratio ranging from about 20:1 to about 9:1. The printable medium further includes a tie layer coated on the discrete barrier layer, and an image receiving layer coated on the tie layer.Type: GrantFiled: August 31, 2012Date of Patent: March 17, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Xulong Fu, Xiaoqi Zhou, Ronald J. Selensky
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Patent number: 9932239Abstract: A sheet-like fiber structure including a plurality of fibers made of amorphous silicon dioxide. The plurality of fibers are intertwined with each other and thus connected to each other, thereby forming void portions. Consequently, the sheet-like fiber structure has not only liquid permeability and voltage resistance but also high heat resistance and chemical resistance. The sheet-like fiber structure is therefore applicable to a separator for preventing a short circuit between electrodes, a scaffold for cell culture, to holding a biomolecule, or the like.Type: GrantFiled: September 14, 2012Date of Patent: April 3, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaya Nakatani, Makoto Takahashi
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Patent number: 8821687Abstract: A flushable article such as a wipe that includes a substrate that includes fibers, and a dried binder composition in contact with the fibers, the article (e.g., wipe) being insoluble in water having a pH of no greater than 6, and disintegrating in water having a pH of at least 6.5.Type: GrantFiled: December 9, 2011Date of Patent: September 2, 2014Assignee: H.B. Fuller CompanyInventors: Mutombo J. Muvundamina, Brian W. Carlson
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Publication number: 20120216975Abstract: A non-woven mat may be generated using synthetic wood pulp and short glass fibers. The non-woven mat may be made in very thin, light weight configurations for various uses. The synthetic wood pulp may serve as a dispersant to disperse the glass fibers in a mixture prior to using paper making techniques to form the mat. A heat flux may bind the glass fibers by melting the synthetic wood pulp to form a mat. The mat may be calendered. In some embodiments, the mat may have a secondary application of a polymer, such as PVDF or PMMA which may further strengthen the mat.Type: ApplicationFiled: August 2, 2011Publication date: August 30, 2012Applicant: POROUS POWER TECHNOLOGIES, LLCInventors: Jay Forlino, Kazuyuki Sakamoto
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Publication number: 20120199299Abstract: The present invention relates to cationic polymers, such as polyaminoamide epichlorohydrin (PAE), that are derived from renewable resources and can be used to produce wet strength resins suitable for a variety of applications, such as in absorbent paper articles.Type: ApplicationFiled: January 17, 2012Publication date: August 9, 2012Inventor: John Collins Dyer
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Publication number: 20120199298Abstract: The present invention relates to cationic polymers, such as polyaminoamide epichlorohydrin (PAE), that are derived from renewable resources and can be used to produce wet strength resins suitable for a variety of applications, such as in absorbent paper articles.Type: ApplicationFiled: February 3, 2011Publication date: August 9, 2012Inventor: John Collins Dyer
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Publication number: 20120180968Abstract: Ribbon fibers, nonwoven articles derived therefrom, and their process of manufacture are provided. The ribbon fibers are derived from multicomponent fibers having a striped configuration and have a length of less than 25 millimeters, a minimum transverse dimension of less than 5 microns, and a transverse aspect ratio of at least 2:1. The ribbon fibers are formed from a water non-dispersible synthetic polymer. The nonwoven articles containing the ribbon fibers may be used for a wide array of products.Type: ApplicationFiled: October 14, 2011Publication date: July 19, 2012Applicant: EASTMAN CHEMICAL COMPANYInventors: Rakesh Kumar Gupta, Melvin Glenn Mitchell, Daniel William Klosiewicz, Mark Dwight Clark, Chris Delbert Anderson, Marvin Lynn Mitchell, Paula Hines Mitchell, Amber Layne Wolfe
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Publication number: 20110100574Abstract: Fibrous structures that exhibit a 4-Factor Consumer Relevant Property Value and more particularly to fibrous structures that exhibit a 5-Factor and/or 6-Factor Consumer Relevant Property Value are provided.Type: ApplicationFiled: November 2, 2010Publication date: May 5, 2011Inventors: Steven Lee Barnholtz, Paul Dennis Trokhan, Christopher Michael Young, Douglas Jay Barkey
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Publication number: 20110104444Abstract: Fibrous structures that exhibit a pore volume distribution such that at least 25% and/or at least 43% of the total pore volume present in the fibrous structures exists in pores of radii of from 91 ?m to 140 ?m, and to methods for making such fibrous structures are provided.Type: ApplicationFiled: November 2, 2010Publication date: May 5, 2011Inventors: Steven Lee Barnholtz, Paul Dennis Trokhan, Douglas Jay Barkey, Christopher Michael Young, Michael Donald Suer
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Publication number: 20100314333Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a low surface electrical resistivity. The fiber webs may also be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.Type: ApplicationFiled: July 7, 2009Publication date: December 16, 2010Applicant: Hollingsworth & Vose CompanyInventors: James M. Witsch, Christophe Lefaux
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Patent number: 7850832Abstract: The present invention relates to an inert, non-asbestos separator and method of making same, the separator comprising an inorganic/polymer fibrid and agglomeration composite material containing from about 5 weight percent to about 70 weight percent of organic halocarbon polymer fibers together with from about 30 wt percent to about 95 weight percent of a finely divided non-organic particulate, which non-organic particulate is firmly bound in said composite fibrids and agglomerates; a natural gum thickening agent in an amount to provide a viscosity of about 6270 to about 590 cP at 0.22 sec?1; and an inert inorganic particulate powder whereby the inert inorganic particulate remains unbound from the inorganic/polymer fibrid and agglomeration composite, the inorganic particulate powder having a mean particle size of not greater than 1.0 ?m and being present in an amount to provide a ratio of polymer fiber composite to unbound inorganic particulate in a range from about 1 to 25.Type: GrantFiled: September 7, 2006Date of Patent: December 14, 2010Assignee: Industrie de Nora S.p.A.Inventors: Nick J. Tomba, Michael S. Moats, Richard L. Romine, Thomas F. Florkiewicz, Douglas J. Waskovich, Edward S. Kazimir
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Publication number: 20100230061Abstract: The instant invention relates to a process for the production of optically brightened paper by treating the pulp suspension with an optically brightened filler composition comprising optically brightened plastic fibres, preferably polyester fibres, which leads to a surprising high lightfastness of the resulting paper.Type: ApplicationFiled: December 22, 2006Publication date: September 16, 2010Inventor: Achim Kohler
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Publication number: 20100139877Abstract: This specification is generally related to reinforced, parchmented paper, composite, reinforced parchmented paper and methods of manufacture thereof. The reinforced, parchmented paper may be used to form a sausage casing.Type: ApplicationFiled: January 10, 2008Publication date: June 10, 2010Inventors: Michael Dennis Black, Alan Wightman, Noël Cartier, Raymond Volpe, Julien Bras, Carlos Vaca-Garcia
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Publication number: 20090294081Abstract: The disclosure provides a method comprising contacting a fibrous polymeric material and a carbon material to form a mixture, contacting the mixture with a liquid to form a slurry, and then forming a layer comprising the slurry. Also disclosed are layers formed from the recited methods, electrodes comprising the layers, and electrical devices comprising the layers and/or electrodes.Type: ApplicationFiled: May 29, 2008Publication date: December 3, 2009Inventors: Kishor Purushottam Gadkaree, Joseph Frank Mach
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Patent number: 7311209Abstract: A filter material has one or more plies of fiber layers, in particular for the production of filter bags and filter cones for infused beverages, the at least one fiber layer containing fibers or microcapsules having phase change material. Paraffinic hydrocarbons can be used as the phase change material.Type: GrantFiled: September 9, 2004Date of Patent: December 25, 2007Assignees: Outlast Technologies, Inc, Schoeller + Hoesch GmbH & Co. KGInventors: Martin Bentz, Danny H. Meger
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Patent number: 7272915Abstract: A composite sheet, and a process of making the same, including cured modified urea formaldehyde reinforced by glass fibers. The modifier is an acrylonitrile-butadiene-styrene copolymer. A roofing shingle, formed by coating the composite sheet with filled asphalt, represents a major application of the composite sheet.Type: GrantFiled: May 7, 2004Date of Patent: September 25, 2007Assignee: Building Materials Investment CorporationInventor: Qinyun Peng
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Patent number: 6942756Abstract: The invention provides fluororesin fiber paper excellent in adhesion to a copper foil, heat resistance, chemical resistance, low water absorption and electric insulation and capable of being used as a substrate of a printed board suitable for use in high frequency, of which a low dielectric loss is required. The fluororesin fiber paper is a porous sheet obtained by forming a slurry comprising fluororesin fiber into a sheet by a wet paper making method and sintering the resultant sheet and has an average pore diameter of 0.5 to 50 ?m and a maximum pore diameter of at most 250 ?m. A copper-clad laminate for printed board is produced by laminating the fluororesin fiber paper and a copper foil having a ten point mean height of surface roughness profile (Rz) of 0.5 to 8.0 ?m on each other by means of vacuum hot pressing.Type: GrantFiled: July 31, 2002Date of Patent: September 13, 2005Assignee: Tomoegawa Paper Co., Ltd.Inventors: Takanori Suzuki, Hajime Tsuda
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Patent number: 6767851Abstract: A non-woven mat useful for a wide variety of purposes, including forming reinforced resin products, is produced in a manner having different specific uses of, and advantages over, conventional chopped strand mats and conventional glass tissue. The mat is preferably made by the foam process (but may be made by the liquid process), and at speeds well in excess of 60 m./min., and has a substantially uniform construction even when low density (e.g. 100 g/m2 or less). At least 20% (preferably at least 85%) of the fibers are in fiber bundles with between 5-450 fibers/bundle. The fibers (typically at least 85%) have a length between 5-100 mm, preferably 7-50 mm, substantially the same as the length of the fiber bundle they are in. The fibers are preferably held in the bundles by substantially non-water soluble sizing, such as epoxy resin or PVOH. The fibers in the bundles typically have diameters of approximately 7-500 microns, preferably about 7-35 microns.Type: GrantFiled: April 5, 2000Date of Patent: July 27, 2004Assignee: Ahlstrom Glassfibre OyInventors: Kay Rökman, Juhani Jansson, Harri Kostamo, Juha Bohm
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Patent number: 6737369Abstract: A coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating is provided. The coated mat is a cured, non-woven mat including a mixture of fibers having different fiber lengths. The fibers contain a polysiloxane compound and are fixedly distributed in a binder.Type: GrantFiled: October 29, 2002Date of Patent: May 18, 2004Assignee: Building Materials Investment CorporationInventors: Qinyun Peng, Krishna Srinivasan, Bill Bittle, Betty C. Roberts, Mark McAteer
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Patent number: 6720388Abstract: A polypropylene blend including from 0.5 to 50% by weight of a syndiotactic polypropylene having a multimodal molecular weight distribution and at least 50% by weight of an isotactic polypropylene.Type: GrantFiled: January 24, 2002Date of Patent: April 13, 2004Assignee: Atofina Research S.A.Inventor: Axel Demain
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Patent number: 6706147Abstract: The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde type binder containing a binder modifier which is a crosslinked styrene/acrylic polymer, and to a process for the preparation of the mat.Type: GrantFiled: December 9, 2002Date of Patent: March 16, 2004Assignee: Building Materials Investment CorporationInventors: Qinyun Peng, Krishna Srinivasan
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Publication number: 20030121631Abstract: Thermoplastic fibres of different melting points are present in an aqueous slurry of refractory fibres, binder and flocculant. The slurry is passed through a screen to form a wet body which is heated to dry the body and melt the thermoplastic fibres to bind the refractory fibres together.Type: ApplicationFiled: November 7, 2002Publication date: July 3, 2003Inventors: John Dinwoodie, Kathleen E. Wade, Stella M. Young
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Publication number: 20030024666Abstract: The invention provides fluororesin fiber paper excellent in adhesion to a copper foil, heat resistance, chemical resistance, low water absorption and electric insulation and capable of being used as a substrate of a printed board suitable for use in high frequency, of which a low dielectric loss is required. The fluororesin fiber paper is a porous sheet obtained by forming a slurry comprising fluororesin fiber into a sheet by a wet paper making method and sintering the resultant sheet and has an average pore diameter of 0.5 to 50 &mgr;m and a maximum pore diameter of at most 250 &mgr;m. A copper-clad laminate for printed board is produced by laminating the fluororesin fiber paper and a copper foil having a ten point mean height of surface roughness profile (Rz) of 0.5 to 8.0 &mgr;m on each other by means of vacuum hot pressing.Type: ApplicationFiled: July 31, 2002Publication date: February 6, 2003Applicant: TOMOEGAWA PAPER CO., LTD.Inventors: Takanori Suzuki, Hajime Tsuda
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Patent number: 6352660Abstract: Composite fibers useful for preparing diaphragms are prepared by (a) mixing a PTFE or PTFE copolymer dispersion or powder with a finely divided inorganic material and a fiber forming material, (b) shear heating the resulting mixture to a temperature at which sheared to PTFE or PTFE copolymer becomes flowable without showing signs of decomposition while removing the dispersion medium, if a PTFE or PTFE copolymer dispersion is used, (c) cooling the mixture to below 70° C., (d) mix shearing the mixture at below 70° C. to form composite fibers.Type: GrantFiled: October 21, 1998Date of Patent: March 5, 2002Assignee: BASF AktiengesellschaftInventors: Holger Friedrich, Ulrich Bröckel, Dieter Schläfer, Klaus-Dieter Hoppe, Kurt Hecky, Peter Palm
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Patent number: 6338772Abstract: A polyolefin synthetic pulp comprising a polyolefin resin graft-modified with an unsaturated carboxylic acid or a derivative thereof, and/or a polyolefin resin composition which comprises an ethylene/&agr;,&bgr;-unsaturated carboxylic acid copolymer and a polyethylene resin. Further, there is provided a heat sealing paper comprising a base fiber layer whose at least one surface is laminated and integrated with a layer of the polyolefin synthetic pulp. This polyolefin synthetic pulp has a large breaking length and an excellent internal bond strength, and exhibits stable heat sealing and hot tack properties over a wide temperature range from low to high temperature. The polyolefin synthetic pulp is suitable to use in battery separators, molding fiberboards, heat sealing papers and the like.Type: GrantFiled: October 27, 1999Date of Patent: January 15, 2002Assignee: Mitsui Chemicals INCInventors: Norihiko Nakagawa, Masaki Shoji, Toshikazu Senoo, Makoto Nakamaru, Yukio Kouno
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Patent number: 6171443Abstract: A high-opacity cellulose-free synthetic paper is formed from a wet-laid nonwoven web of thermoplastic fibers, all or most of which fibers are made of a predetermined polymeric material. The wet-laid web is dried to remove excess water, drying being carried cut at temperatures below the melting temperature of the predetermined polymeric material. The dried nonwoven web is saturated on at least one side with a pigmented binder forming a continuous coating thereon. The binder is cured at temperatures below the melting temperature of the predetermined polymeric material.Type: GrantFiled: June 6, 1995Date of Patent: January 9, 2001Assignee: Polyweave International, LLCInventors: James A. Goettmann, Peter J. Angelini, Stephen H. Monroe, John R. Boylan