Patents Examined by Christopher Raimund
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Patent number: 6531231Abstract: A recording material comprising a substrate layer and an ink receiving layer formed on said substrate layer, wherein the ink receiving layer has a retention of ink concentration after water immersion of not less than 30% and a surface gloss of not less than 55%. The recording material of the present invention is capable of absorbing ink quickly, which ink being hard to be removed even after pouring water thereon, and of color ink jet printing with high surface gloss. The recording material of the present invention permits provision of printed matters having high gloss, high quality and high grade, like silver salt photographs.Type: GrantFiled: May 7, 1999Date of Patent: March 11, 2003Assignee: Toyo Boseki Kabushiki KaishaInventors: Katsuya Ito, Toru Kotani, Toshitake Suzuki
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Patent number: 6352948Abstract: A multilayer laminate comprising a fine fiber nonwoven composite web which is a mixture of a first group of fibers and a second group of fibers such that the first and second fibers comprise polymers that are incompatible with each other. The fine fiber nonwoven composite web is bonded to a barrier layer such as a microporous film or a nonwoven web of meltblown fibers.Type: GrantFiled: December 19, 1997Date of Patent: March 5, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard Daniel Pike, Henry Louis Griesbach, III
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Patent number: 6235392Abstract: The invention is lyocell fiber characterized by a pebbled surface as seen at high magnification and having a variable cross section and diameter along and between fibers. The fiber is produced by centrifugal spinning, melt blowing or its espunbonding variation. The fibers can be made in the microdenier range with average weights as low as one denier or less. The fibers have inherently low gloss and can be formed into tight yarns for making fabrics of very soft hand. Alternatively, the fibers can be formed into self bonded nonwoven fabrics.Type: GrantFiled: March 16, 1998Date of Patent: May 22, 2001Assignee: Weyerhaeuser CompanyInventors: Mengkui Luo, Vincent A. Roscelli, Amar N. Neogi, Richard A. Jewell
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Patent number: 6227009Abstract: Relatively viscous glass is fiberized in a rotary fiberization process at relatively high disk speeds and through relatively large diameter holes to form long, fine diameter glass fibers which preferably are rapidly solubilized in biological fluids. The method of forming the long, fine diameter glass fibers includes maintaining a ratio of the velocity of the external surface of the peripheral wall of the fiberizing disk to the velocity of the glass passing through the fiberizing orifices within a specific range (the disc/glass velocity ratio); maintaining a ratio of the velocity of the air exiting the air ring to the velocity of the glass passing through the fiberizing orifices within a specific range (the air-ring/glass velocity ratio); and maintaining a ratio of the BTU content of the fuel expended forming the hot attenuating combustion gases to the BTU content of a pound of molten glass being fiberized within a specific range (the attenuating combustion gases/glass heat content ratio).Type: GrantFiled: December 14, 1998Date of Patent: May 8, 2001Inventors: Michael John Cusick, Kenneth Andrew Clocksin
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Patent number: 6221798Abstract: The specification discloses a method for laminating a synthetic film or sheet to a fibrous web. According to the method, a heat-softenable material is combined as a sheet, film, spray or powder with a continuous fibrous web in interfacial contact with fibers of the fibrous web to form a composite. The composite is then continuously conducted through an extended nip dryer where heat and pressure are applied to the composite to effect a substantial reduction in moisture content of the composite while plasticizing the heat-softenable material so that at least a mechanical bond is formed between the material and the fibers of the web characterized by an intermingling of the fibers and the heat-softenable material.Type: GrantFiled: July 24, 1997Date of Patent: April 24, 2001Assignee: International Paper CompanyInventors: Anant D. Mahale, Xiang Yu, George Karles, Narendra Srivatsa
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Patent number: 6204208Abstract: A surfactant and skin wellness composition useful for imparting durability and wettability to a substrate as well as skin wellness, includes a first surfactant in combination with aloe vera. The first surfactant includes a compound selected from ethoxylated hydrogenated fatty oils, monosaccharides, monosaccharide derivatives, polysaccharides, polysaccharide derivatives, and combinations thereof. Other ingredients can also be added. The composition can be applied as an aqueous emulsion to a substrate such as a nonwoven web, to provide enhanced wettability combined with skin enhancement to the wearer.Type: GrantFiled: August 21, 1998Date of Patent: March 20, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Duane G. Krzysik, David Charles Musil, Andrea Louise Potokar, Frank Andrew Rosch, III, Christian Lee Sanders, Benjamin Brent Forbis, Gordon Allen Shaw, Ali Yahiaoui
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Patent number: 6203911Abstract: A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding processs using molding compositions including reactive high-volatility monomeric groups are also described.Type: GrantFiled: June 17, 1998Date of Patent: March 20, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Rolf Thomas Weberg, Lawrence J. Simmons, Richard Reid Gleason
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Patent number: 6200635Abstract: A method for producing visco-elastic fluidic material flows by drawing a visco-elastic fluidic material with corresponding separate second fluid flows associated therewith to form a visco-elastic fiber vacillating in a repeating, generally omega-shaped pattern having a bowed portion with first and second side portions that first converge toward each other and then diverge outwardly in generally opposing directions. In one operation, the visco-elastic fiber vacillating in the repeating, generally omega-shaped pattern is an adhesive material deposited onto woven and non-woven fabric substrates and stretched elongated elastic strands in the manufacture of a variety of bodily fluid absorbing hygienic articles.Type: GrantFiled: August 31, 1998Date of Patent: March 13, 2001Assignee: Illinois Tool Works Inc.Inventor: Kui-Chiu Kwok
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Patent number: 6197406Abstract: A method for producing visco-elastic fluidic material flows by drawing a visco-elastic fluidic material with corresponding separate second fluid flows associated therewith to form a visco-elastic fiber vacillating in a repeating, generally omega-shaped pattern having a bowed portion with first and second side portions that first converge toward each other and then diverge outwardly in generally opposing directions. In one operation, the visco-elastic fiber vacillating in the repeating, generally omega-shaped pattern is an adhesive material deposited onto woven and non-woven fabric substrates and stretched elongated elastic strands in the manufacture of a variety of bodily fluid absorbing hygienic articles.Type: GrantFiled: March 16, 2000Date of Patent: March 6, 2001Assignee: Illinois Tool Works Inc.Inventor: Kui-Chiu Kwok
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Patent number: 6194066Abstract: The invention comprises devices composed of at least one microscopic hollow tube having a wall of single or multiple layers with a thickness of at least one nanometer and a diameter of at least 5 nanometers. The tubes can be formed from a wide variety of materials, some of the preferred materials include metals, polymers, silica, carbon, carbides, nitrides and oxides. The inside of the tubes can be coated with a desired material such as a catalyst. The tubes further may act as devices upon which materials can be deposited which are not compatible with the fiber and further may have depressions or elevations therein that were imparted to the fibers upon which the tubes were formed. The wall layers may be porous for the purpose of removing the fiber therethrough. Further the hollow tubes can be used in a preform by themselves or serve the purpose of being used to form rods or filaments in the desired configuration after the tubes are removed.Type: GrantFiled: April 15, 1994Date of Patent: February 27, 2001Assignee: The United States of America as represented by the Secretary of the Air ForceInventor: Wesley P. Hoffman
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Patent number: 6187696Abstract: A moisture vapor permeable, substantially liquid impermeable composite sheet material comprising a fibrous substrate and a moisture vapor permeable thermoplastic film layer. The moisture vapor permeable film has an average thickness of less than 25 microns, a peel strength of at least 0.1 N/cm, a dynamic fluid transmission of less than about 0.75 g/m2 when subjected to an impact energy of about 2400 joules/m2, a hydrostatic head of at least 60 cm, and a moisture vapor transmission rate, according to the desiccant method, of at least 2800 g/m2/24 hr. The moisture vapor permeable film is preferably comprised of at least about 50% by weight of polymer selected from the group of block copolyether esters, block copolyether amides, polyurethanes, polyvinyl alcohol, and combinations thereof. A method for making such a sheet material is also provided.Type: GrantFiled: December 3, 1997Date of Patent: February 13, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Hyun Sung Lim, J. Michael McKenna, George Joseph Ostapchenko, Shailaja R. Vaidya, John Joseph Curro, Gary Dean Lavon
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Patent number: 6183834Abstract: The invention relates to a ballistic-resistant molded article containing a compressed stack of monolayers, with each monolayer containing unidirectionally oriented reinforcing fibers and at most 30 wt. % of a plastic matrix material and with the fiber direction in each monolayer being rotated with respect to the fiber direction in an adjacent monolayer, characterized in that the density (&rgr;P) of the compressed stack is at least 98.0% of the theoretical maximum density. The invention also relates to a process for manufacturing the molded article. The ballistic-resistant article may be used in, for instance, helmets, as inserts in bullet-proof vests, as armoring on military vehicles and in ballistic-resistant panels.Type: GrantFiled: December 22, 1997Date of Patent: February 6, 2001Assignee: DSM N.V.Inventor: Leonardus L. H. van der Loo
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Patent number: 6168849Abstract: A multilayer material suitable for use as a cover or topsheet for personal care absorbent articles such as diapers, sanitary pads, adult incontinence garments, training pants and the like having a top layer and a bottom, where the top layer forms a plurality of apertures and contacts the bottom layer in land areas disposed between the apertures. The bottom layer has a permeability substantially equivalent to, or higher than, the top layer.Type: GrantFiled: November 14, 1997Date of Patent: January 2, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jaime Braverman, Michael Allen Daley, Arthur Edward Garavaglia, Rebecca Griffin, Tamara Lee Mace, David Wayne Primm, Eugenio Go Varona, Ali Yahiaoui
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Patent number: 6168852Abstract: A wipe comprising a high internal phase inverse emulsion disposed in a discontinuous pattern on a substrate. The pattern provides areas coated with the emulsion and areas free of the emulsion. Preferably the emulsion is disposed so that the surface area to volume ratio of the emulsion is minimized. The emulsion locally expresses water during use upon the application of pressure to the wipe. The water is useful for cleaning. The discontinuous pattern of the emulsion provides regions of the substrate which are wetted during use and regions which may remain dry. The wetted regions transfer water to the surface to be cleaned. The dry regions then remove the water from the surface for more efficacious cleaning.Type: GrantFiled: February 16, 1999Date of Patent: January 2, 2001Assignee: The Procter & Gamble CompanyInventors: Charles Zell Smith, III, Steven Lee Barnholtz, David William Cabell
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Patent number: 6165584Abstract: A rug exhibiting a wool-like appearance made by the process comprising the steps of a. extruding a dyeable polyolefin resin comprising the reaction product of a polypropylene and an ethylene alkyl acrylate copolymer to provide an extruded fiber; b. drawing the extruded fiber by conveying the fiber among a system of unheated and heated godets; c. crimping the drawn fiber by passing the fiber into a texturing jet utilizing hot air; d. twisting at least two separate drawn and crimped fibers to provide a multi-ply carpet face yarn wherein the yarn is from about 1000 to about 8000 denier and has about 2 to about 7 twists per inch; e. heat-setting the multi-ply yarn; f. dyeing the multi-ply yarn using a space-dyeing process; and g. weaving the dyed yarn into a rug; thereby providing a rug with a wool-like appearance. The invention also provides a process for making a rug with a wool-like appearance.Type: GrantFiled: January 11, 1999Date of Patent: December 26, 2000Assignee: Shaw Industries, Inc.Inventor: Christopher S. Bryant
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Patent number: 6162530Abstract: A chemical synthetic route is disclosed for nanostructured materials that is scalable to large volume production, comprising spray atomization of a reactant solution into a precursor solution to form a nanostructured oxide or hydroxide precipitate. The precipitate is then heat-treated followed by sonication, or sonicated followed by heat treatment. This route yields nanostructured doped and undoped nickel hydroxide, manganese dioxide, and ytrria-stabilized zirconia. Unusual morphological superstructures may be obtained, including well-defined cylinders or nanorods, as well as a novel structure in nickel hydroxide and manganese dioxide, comprising assemblies of nanostructured fibers, assemblies of nanostructured fibers and agglomerates of nanostructured particles, and assemblies of nanostructured fibers and nanostructured particles. These novel structures have high percolation rates and high densities of active sites, rendering them particularly suitable for catalytic applications.Type: GrantFiled: November 17, 1997Date of Patent: December 19, 2000Assignee: University of ConnecticutInventors: Tongsan D. Xiao, Peter R. Strutt, Bernard H. Kear, Huimin Chen, Donald M. Wang
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Patent number: 6159880Abstract: A felt provides a uniform paper-supporting surface having good water storage and water release properties. These qualities are effected by a bat including one or more layers of fine fibers being needled onto a base containing perforations and cavities. The free surfaces of the bat fibers needled into the cavities are reduced in a special production step following the needling operation.Type: GrantFiled: June 15, 1998Date of Patent: December 12, 2000Inventor: Christian Schiel
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Patent number: 6156412Abstract: A fabric is constructed to act as a diffraction grating for deBroglie waves of the continuous electromagnetic spectrum. The fabric is made by coating or laminating emissive layers on each side of a fabric and then etching one side to create a diffraction grating. The thickness of the fabric and the width of the etch determine diffracted wave lengths. Constructive or destructive interference can be established to increase the energy (constructive) or decrease the energy (destructive) of the waves diffracted proportionate to the amplitude squared.Type: GrantFiled: January 25, 1999Date of Patent: December 5, 2000Inventor: Jon C. Hagerty
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Patent number: 6156423Abstract: A layer of base material has a film layer and a barrier layer on the film layer, and also adhesive tape has the base material and an adhesive layer on the barrier layer. Thus, they do not have any fish-eye or foreign substance on their surfaces, so that accuracy in thickness are improved and contamination of a material to be adhered with the adhesive layer is also improved.Type: GrantFiled: April 10, 1998Date of Patent: December 5, 2000Assignee: Lintec CorporationInventors: Kouichi Nagamoto, Takeshi Kondoh, Kazuhiro Takahashi, Katsuhisa Taguchi, Kazuyoshi Ebe
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Patent number: RE37295Abstract: A water and/or oil-impermeable sealing mat is provided in form of a bentonite non-woven fabric combination with the possibility of transmitting thrust from one batt layer to the other, i.e. on a slope thrust forces can be transmitted by the covering batt material through the layer of swellable clay into the supporting batt material. Such a sealing mat is a fiber-reinforced mineral seal permitting the transmission of thrust forces on slopes, without the risk of the layer of swellable clay itself becoming the preferred sliding plane. The sealing mat consists of a non-woven textile material as substrate layer, a layer of swellable clay, preferably sodium bentonite, and a cover layer consisting preferably also of a non-woven textile material, all three layers having been needled together in the conventional manner in a needle loom. When moistened, the clay swells and forms the water and/or oil-impermeable layer.Type: GrantFiled: December 11, 1995Date of Patent: July 24, 2001Assignee: Naue-Fasertechnik GmbH & Co. KGInventors: Georg Heerten, Karsten Johannssen, Volkhard Müller