Containing Polymeric And Natural Strand Or Fiber Materials Patents (Class 442/416)
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Publication number: 20020081930Abstract: The present invention is directed to ion-sensitive, water-dispersible fabric. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymer formulations and their applicability as binder compositions for disposable items.Type: ApplicationFiled: December 5, 2001Publication date: June 27, 2002Applicant: Kimberly-Clark Worldwide, Inc.Inventors: David Martin Jackson, Frederick John Lang, Kenneth Yin Wang, Duane Zacharias
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Patent number: 6407309Abstract: An inexpensive sheet or web shaped fibre material for use e.g., in sanitary napkins typically consists of a mixture of short cellulose fibres and some 15% of relatively long, thermoplastic binder fibers. It is a noticeable problem that the short fibres “dust” out of the material, and according to the invention this is remedied in that the material, when made by dry forming, is provided with a surface coating of very thin layers of pure binder fibres. In addition to a marked holding back of the dust, these layers condition that the amount of binder fibres in the base material can be halved and that the breaking stress of the material is noticeably improved. Thereby the products are usable not only as inserts, but also as individual, self-contained units e.g., for wiping in domestic or industrial cleaning.Type: GrantFiled: August 11, 1998Date of Patent: June 18, 2002Assignee: Scan-Web I/SInventor: Helmut Erwin Schilkowski
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Patent number: 6387831Abstract: There is provided a fibrous web which includes a binder and which is compressed to a density of up to about 0.3 g/cc. The web may preferably be formed by the bonded carded web process or air lay process. The binder may depend on hydrogen bonding using moisture or may be a non-aqueous solution, a powder, a fibrous binder or a conjugate fiber binder including a moisture triggerable component. Conjugate fibers may be crimped. When wetted the web of this invention should expand rapidly to greater than 80% of its uncompressed thickness and greater than 90% of its thickness when saturated if starting from the uncompressed state.Type: GrantFiled: November 16, 1998Date of Patent: May 14, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Hannong Rhim, Roland Columbus Smith, Jr., Rob David Everett, Clifford Jackson Ellis, Christopher Cosgrove Creagan
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Publication number: 20020028625Abstract: A stencil is made by thermally forming perforations arranged in both a main scanning direction and a sub-scanning direction in a thermoplastic resin film of heat-sensitive stencil material by the use of a heat source which is heated through supply of energy. Supply of energy to the heat source is cut when a time interval not shorter than 50% and not longer than 100% of an estimated perforating time lapses from the time at which supply of energy to the heat source is started. The estimated perforating time is a time interval expected to be necessary for a perforation to be produced by the heat of the heat source and to be enlarged to a desired size as a final size as measured from the time at which supply of energy to the heat source is started.Type: ApplicationFiled: May 17, 2001Publication date: March 7, 2002Inventors: Jun Nakamura, Kenji Oshima
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Publication number: 20020009942Abstract: Disclosed is an absorbent material which is used as ink pads of ink-jet and bubble-jet printers, various building materials and materials for civil engineering work, said absorbent material comprising a non-woven fabric containing water-absorptive fibers, wherein a water absorption percentage is not less than 400% by weight and a change in volume is less than 10% in a state where water is absorbed in the amount of not less than 400% by weight.Type: ApplicationFiled: September 1, 1999Publication date: January 24, 2002Inventors: YOSHIKATSU MIZUKAMI, KATSUMI AGARI, HIROKO FUKUMOTO, HIROSHI ONOUE, OSAYUKI NUMATA
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Patent number: 6329052Abstract: A blowable insulation material includes batt shredded into blowable clusters. In the several embodiments, the clusters include water-repellant or lubricant-finished fiber and/or dry fiber and/or binder fiber, and may be a mixture of clusters and a natural material including down, silk, wool, cotton or any other natural material with insulating properties, or any combination thereof, and may also include synthetic open fibers.Type: GrantFiled: June 14, 1999Date of Patent: December 11, 2001Assignee: Albany International Corp.Inventors: Zivile M Groh, Victor P. Laskorski
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Patent number: 6274522Abstract: Disclosed is a liquid absorbing body and a method of manufacturing the liquid absorbing body which has an excellent swelling property and absorbed liquid holding ability in a vertical state and which is suitable to a mass production at a low manufacturing cost. This liquid absorbing body includes natural cellulose fibers and/or synthetic fibers, a thermally fusible material and a thickening material. This liquid absorbing body is formed by defibering natural cellulose fibers and/or synthetic fibers, a thermally fusible material and a thickening material in air and mixing them to form a mat, heating thus formed mat at a temperature higher than a fusible point of the thermally fusible material and then fixing the thickening material in a web by compressing the mat with a press roller.Type: GrantFiled: December 11, 1997Date of Patent: August 14, 2001Assignee: Oji Paper Co., Ltd.Inventors: Tadanori Sameshima, Teruo Miura, Kiyotaka Miyata, Eiji Yagura
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Publication number: 20010008824Abstract: There is provided a fibrous web which includes a binder and which is compressed to a density of up to about 0.3 g/cc. The web may preferably be formed by the bonded carded web process or air lay process. The binder may depend on hydrogen bonding using moisture or may be a non-aqueous solution, a powder, a fibrous binder or a conjugate fiber binder including a moisture triggerable component. Conjugate fibers may be crimped. When wetted the web of this invention should expand rapidly to greater than 80% of its uncompressed thickness and greater than 90% of its thickness when saturated if starting from the uncompressed state.Type: ApplicationFiled: November 16, 1998Publication date: July 19, 2001Inventors: HANNONG RHIM, ROLAND COLUMBUS SMITH,, ROB DAVID EVERETT, CLIFFORD JACKSON ELLIS, CHRISTOPHER COSGROVE CREAGAN
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Patent number: 6232249Abstract: A short fiber-containing down-feather wadding in which the short fibers are entangled in barbs of the down-feathers. In this wadding, the short fibers are uniformly mixed with the down-feathers, and the properties of the down-feathers, and the short fibers are effectively imparted to the wadding.Type: GrantFiled: May 6, 1997Date of Patent: May 15, 2001Inventor: Yukihiro Kawada
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Patent number: 6034002Abstract: The invention relates to a sealing tape which is suitable for winding around pipe ends, especially pipe threads, and for sealing screw pipe joints and spigot pipe joints, which has a waterproof functional layer, preferably with one or more base layers, where the functional layer contains polymers on polyetherester basis, polyurethane basis and/or polyetheramide basis, and the use of the sealing tape in heating pipes, utility water pipes, drinking water pipes, water vapor pipes, gas pipes, compressed air pipes, industrial valves and valves used in domestic installations.Type: GrantFiled: April 15, 1997Date of Patent: March 7, 2000Assignee: Akzo Nobel NvInventor: Eugeniusz Maderek
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Patent number: 6028018Abstract: An improved wet wipe includes a multiple layer basesheet to provide a unique combination of properties to the wipe which are not capable in a single layer basesheet. The layered basesheet includes at least two layers which include different fibers and have different physical properties. One of the layers may include polyethylene fibers to provide a soft, gentle feel for contacting the skin of the user during use while the other layer may include polypropylene fibers to provide strength and resiliency to the wipe to withstand the forces exerted by the user, and maintain its shape and integrity in use.Type: GrantFiled: September 6, 1996Date of Patent: February 22, 2000Assignee: Kimberly-Clark Worldwide, Inc.Inventors: John David Amundson, John Charles Eckert, Mark George Everson, David Martin Jackson, Walter Theodore Schultz, Charles Allen Smith, David Craige Strack
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Patent number: 6001750Abstract: The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, carbon particles, carbon fibers, phenolic novoloid fibers, and at least one filler material, optionally cotton fibers, and a secondary layer of carbon particles on at least one surface of the fibrous base material for use in a non-asbestos friction material. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having an extended high speed durability life, good "break-in" characteristics, good heat dissipation characteristics, and good noise or squawk resistance.Type: GrantFiled: March 24, 1999Date of Patent: December 14, 1999Assignee: Borg-Warner Automotive, Inc.Inventor: Robert C. Lam
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Patent number: 5994615Abstract: There is provided a surge material for personal care products which is a wettable web of fibers of 30 microns in diameter or less where the web has a permeability between about 250 and 1500 Darcys, a capillary tension between about 1.5 and 5 cm, and which maintains that permeability and capillary tension over the life of the web. Its preferred that the web have a density between about 0.02 g/cc to about 0.07 g/cc.Type: GrantFiled: December 16, 1998Date of Patent: November 30, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard Norris Dodge, II, Clifford Jackson Ellis, Connie Lynn Hetzler, Sylvia Bandy Little, Tamara Lee Mace, Lawrence Howell Sawyer, Hoa La Wilhelm
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Patent number: 5948543Abstract: A laminate base material of aromatic polyamide fiber non-woven fabric which comprises a combined non-woven fabric of para-aramid fibers and meta-aramid fibers bonded with each other by a resin binder such as an epoxy resin binder and meta-aramid fibres being thermally adhered to each other and meta-aramid fibers being thermally adhered to para-aramid fibers while they are passing through a pair of thermal rolls and heated and pressed by them and the meta-aramid fibers being included preferably by 5 through 30 weight %.Type: GrantFiled: February 21, 1997Date of Patent: September 7, 1999Assignees: Shin-Kobe Electric Machinery Co., Ltd., Teijin Limited, Oji Paper Co., Ltd.Inventors: Minoru Ootuka, Hirokazu Hiraoka, Toru Shimadu, Masayuki Noda
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Patent number: 5905046Abstract: A water-disintegrable sheet having biodegradability. The sheet comprises one or more kinds of biodegradable synthetic fibers, and one or more kinds of natural fibers and/or regenerated fibers, all the fibers being bound together by a binder such that the binding power of the binder will be substantially lost in water. The sheet has a given degree of tensile strength and good softness, coupled with a required degree of liquid absorbency, and still has some biodegradation property. Therefore, the sheet can be flushed in a flush toilet without involving any appreciable increase in the volume of solid residues in a septic tank and/or in a sewage disposal plant and is therefore suitable for use in the form of a wet wiper in particular.Type: GrantFiled: April 23, 1997Date of Patent: May 18, 1999Assignees: Uni-Charm Corporation, Unitika Ltd.Inventors: Yasushi Takeda, Toshiya Okubo, Chieko Arita, Chizu Otani, Yoshishige Yoshioka, Fumio Matsuoka, Naoji Ichise
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Patent number: 5885908Abstract: An anisotropic elastic web, particularly an anisotropic elastic film layer having a machine direction and a cross direction and having a thickness of from 20 to 300 microns formed of an extruded blend of a block copolymer elastomer portion and a polyolefin polymer portion blended in a ratio of from 10:1 to 0.4:1, respectively. The elastomer portion generally is a block copolymer elastomer formed of A blocks and B blocks, the A blocks are formed predominately of monoalkenyl arene and the B blocks are formed predominately of conjugated diene. The polyolefin portion is comprised predominately of an inelastic fiber forming polyolefin polymer, copolymer or blend. The anisotropic film layer has a F10 force Ratio (MD to CD) of at least 1.5. This anisotropic elastic web is usable in a variety of garment applications where an elastic is supplied in roll form and requires strength in a machine direction and elastic properties in a cross direction.Type: GrantFiled: October 4, 1996Date of Patent: March 23, 1999Assignee: Minnesota Mining and Manufacturing Co.Inventors: Jobst Tilman Jaeger, Alan J. Sipmen
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Patent number: 5879343Abstract: There is provided a surge material for personal care products which is a wettable web of fibers of 30 microns in diameter or less where the web has a permeability between about 250 and 1500 Darcys, a capillary tension between about 1.5 and 5 cm, and which maintains that permeability and capillary tension over the life of the web. Its preferred that the web have a density between about 0.02 g/cc to about 0.07 g/cc.Type: GrantFiled: November 22, 1996Date of Patent: March 9, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard Norris Dodge, II, Clifford Jackson Ellis, Connie Lynn Hetzler, Sylvia Bandy Little, Tamara Lee Mace, Lawrence Howell Sawyer, Hoa La Wilhelm
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Patent number: 5877099Abstract: A web, formed from dielectric fibers and non-dielectric fibers, which has been subjected to corona discharge to improve the particulate filtration properties of the web is provided. The dielectric and non-dielectric fibers may be intermingled within the web such that the distribution of the dielectric and non-dielectric fibers within the web is generally uniform. In one embodiment, the dielectric fibers may be formed from a thermoplastic polymer, and particularly polyolefin and the non-dielectric fibers may be formed from cellulose, and particularly wood pulp.Type: GrantFiled: January 27, 1997Date of Patent: March 2, 1999Inventor: Bernard Cohen
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Patent number: 5876840Abstract: Spunbond multicomponent filaments and nonwoven webs made from the filaments are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement additive. Specifically, the crimp enhancement additive is added to one of the polymeric components in order to accelerate its solidification rate. The additive enhances crimp, allows for highly crimped filaments to be made at smaller deniers, and produces low density webs with improved stretch and cloth-like properties. Specifically, the additive incorporated into the filaments is a nonionic surfactant such as an alkyl ether alkoxylate, a siloxane alkoxylate, an ester of a polyalkylene glycol, a polysaccharide derivative, a glycerol ester, or mixtures thereof.Type: GrantFiled: September 30, 1997Date of Patent: March 2, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Xin Ning, Samuel E. Marmon
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Patent number: 5858883Abstract: The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of carbon particles on at least one surface of the fibrous base material for use in a non-asbestos friction material. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having good "break-in" and durability characteristics.Type: GrantFiled: January 28, 1997Date of Patent: January 12, 1999Assignee: Borg-Warner Automotive, Inc.Inventors: Robert C. Lam, Marc A. Yesnik, Yih-Fang Chen
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Patent number: 5801107Abstract: Disclosed is a liquid transport material composed of a pulp fibers hydraulically needled into a nonwoven fibrous structure adapted to have a liquid transport value of at least 12 grams of liquid per gram of material over 30 minutes. The liquid transport material may contain up to about 50 percent, by weight, short staple length fibers as well as effective amounts of various particulates. The liquid transport material may be used as a liquid transport component of an absorbent structure which may be part of, for example, a personal care product. Also disclosed is a process of making a liquid transport material utilizing hydraulic needling techniques.Type: GrantFiled: December 20, 1996Date of Patent: September 1, 1998Assignee: Kimberly-Clark CorporationInventors: Cherie Hartman Everhart, Ann Louise McCormack, Debra Nell Welchel
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Patent number: 5786065Abstract: An abrasive nonwoven fibrous web material is produced by initially forming a nonabrasive precursor nonwoven fibrous web material having on a first planar surface thereof a substantially uniform distribution of attenuated meltable thermoplastic fibers, such as polypropylene fibers. The precursor web is heated sufficiently to cause the attenuated thermoplastic fibers therein to shrink and form nodulated fiber remnants that impart a roughened abrasive character to the planar surface of the resultant web material. The concentration of the abrasive fiber remnants decreases across the thickness of the web material from the abrasive planar surface toward the opposite planar surface of the web to provide an abrasive fiber remnant gradient across the web. The nodulated abrasive fiber remnants comprise about 10%-50% by weight of the total fiber content of the web material and exhibit an average particle size of at least about 100 micrometers.Type: GrantFiled: March 18, 1997Date of Patent: July 28, 1998Assignee: The Dexter CorporationInventors: Vaughan R. Annis, John J. Walker, Scott H. Murdock
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Patent number: 5783505Abstract: Compostable and biodegradable compositions of a blend of natural cellulosic and thermoplastic biodegradable fibers are disclosed. Typically the compositions include cotton and cellulose acetate. A process for the manufacture of a nonwoven composition which comprises a compostable blend of natural cellulosic fibers such as cotton and thermoplastic biodegradable fibers such as cellulose acetate; the blend is then carded to obtain the nonwoven composition.Type: GrantFiled: January 4, 1996Date of Patent: July 21, 1998Assignee: The University of Tennessee Research CorporationInventors: Kermit E. Duckett, Gajanan S. Bhat, Hageun Suh
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Patent number: 5733826Abstract: An insole for shoes is a three-dimensionally shaped laminate composed of two adhesive-free formed fabrics, the formed fabric on the foot side being thin and abrasion-resistant, and the thicker formed fabric forming the base material of the insole consisting of staple fibers, having a composition of 50-60% by weight of core/sheath-polyester/copolyester fibers with a melting range of the core component of 255.degree.-260.degree. C. and of the sheath component of 110.degree.-140.degree. C., 5-15% by weight of high-shrinkage polyester fibers, and 25-40% by weight of absorbent fibers. The base material has a mass per unit area of 800-1200 g/m.sup.2 with a thickness of 0.70-0.85 cm.Type: GrantFiled: July 3, 1996Date of Patent: March 31, 1998Assignee: Firma Carl FreudenbergInventor: Dieter Groitzsch
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Patent number: 5731083Abstract: Carboxymethyl cellulose fiber having a degree of substitution of at least 0.1, preferably 0.2-0.5, carboxymethyl groups per glucose unit is derived from solvent-spun cellulose fiber, for example by reaction with a strong alkali and a monochloroacetate reagent. The fiber has an absorbency of at least 8 grams, usually at least 15 grams, 0.9% saline solution per gram of fibre and a tenacity of at least 10, usually at least 15, cN/tex. It can be used for absorbent personal products.Type: GrantFiled: December 6, 1995Date of Patent: March 24, 1998Assignee: Courtaulds PLCInventors: Hardev Singh Bahia, Jim Robert James
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Patent number: 5726107Abstract: A non-wovens fabric of electret fibers having an improved charge stability and comprising materials which chiefly comprise a fiber-forming addition or condensation polymer and 0.01 to 30% by weight (preferably 0.01 to 10, in particular 0.1 to 5, % by weight), based on the weight of the material, of organic or organometallic charge control agents, wherein the non-woven fabric comprises at least two types of electret fiber which are made of different materials which differ from one another in that they comprise different fiber-forming addition or condensation polymers and if appropriate also different charge control agents is described.Type: GrantFiled: August 28, 1995Date of Patent: March 10, 1998Assignee: Hoechst AktiengesellschaftInventors: Jorg Dahringer, Ernst-August Albers, Werner Groh, Achim Heyer
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Patent number: 5690529Abstract: An adsorber material for collecting, concentrating and/or recovering gaseous and/or particle-shaped trace substances from an air or gas flow, in which the adsorber material is composed of fibrous elements made of natural and/or synthetic, organic, textile fibers which are worked into a nonwoven web having a planar geometry, the nonwoven web having a thickness of between 100 .mu.m and 2 mm and a weight per unit area of between 20 and 200 g/m.sup.2. Preferably the fibers have a fiber size between 1 and 10 dtex and are composed of cellulose and/or polyester, and if desired, the fibers may be provided with a binding agent and/or a moisture resistance agent. In preferred embodiments the nonwoven adsorber web is a fiber mixture of 80 parts polyester fibers, 20 parts viscose rayon staple fibers, and 20 parts polyvinyl alcohol fibers or a fiber mixture of 50 parts viscose rayon staple fibers and 50 parts linters, which are provided with an epichlorohydrin resin binder.Type: GrantFiled: November 13, 1996Date of Patent: November 25, 1997Assignees: Securetec GmbH, Boehringer Mannheim GmbHInventors: Helmut Oberpriller, Reinhold Hilpert, Florian Binder, Josef Ritter, Harald Ertl, Rolf Lerch, Reiner Schlipfenbacher, Ludwig Angermaier, Christian Klein
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Patent number: 5667882Abstract: A fibrous structure including a carded web of fibers that have higher individual-fiber linear density and which exhibit a spring characteristic. The web is sprayed with glass fibers or continuous glass filaments that randomly spread out flat on the web, and the web is subsequently needle-punched through a surface thereof to drive the glass fiber or glass filaments through the thickness of the web such that the glass fibers or glass filaments emerge through an opposite surface of the web.Type: GrantFiled: May 29, 1996Date of Patent: September 16, 1997Assignee: Etablissements les Fils d'Auguste Chomarat et CieInventors: Andre Fourezon, Thierry Klethi
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Patent number: 5609933Abstract: A ceremonial roll of material that can be easily unrolled and used is described. The roll contains a small layer or strip of releasable adhesive located on the floor surface of the roll within a starting end region of the roll. This adhesive is then pressed onto the floor itself before the roll is rolled down the aisle or walkway to be used. The adhesive will hold to the floor during the unrolling but can easily be removed by pulling up at an angle from the floor. The ceremonial roll may be made from a host of materials but a non-woven material made from long, natural and synthetic fibers and wherein the non-woven material is made from materials made from component fibers or other particles from polyesters, polypropylenes, polyamides, nylons, rayons, pulps, hemps, cottons, polyolefins and mixtures of two or more of these materials, is preferred. The ceremonial roll may also contain a plurality of adhesive strips within the starting end region to permit the roll to be placed over a set of stairs or steps.Type: GrantFiled: July 27, 1995Date of Patent: March 11, 1997Assignee: Hampshire Paper Corp.Inventor: Michael J. Stepanek