Patents Examined by Norca Torres-Velazquez
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Patent number: 7456119Abstract: This invention relates to a composite laminate, a layup and preform for such a composite laminate and to a method of manufacturing the composite laminate. The layup (28), preform and composite laminate (22) include at least one ply (20) which includes hairy yarn (10). The action of the hairy yarn (10) is to provide cross ply linking owing to the extension of fibers from the hairy yarn into spaces both within the ply and between the plies. The addition of resin matrix material (26) to layup provides a firm cross ply linkage to the composite laminate.Type: GrantFiled: January 9, 2002Date of Patent: November 25, 2008Assignees: Bae Systems PLC, Devold AMT ASInventor: Michael J Healey
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Patent number: 7456120Abstract: This invention relates to a bag filter having a tubular section, one closed end and one open end, the tubular section having a nonwoven felt comprising an intimate fiber blend of 50 to 80 parts by weight meta-aramid fiber and 20 to 50 parts by weight acrylic fiber, based on the total weight of meta-aramid and acrylic fibers in the felt, wherein the acrylic fiber has an equal or lower denier per filament than the meta-aramid fiber.Type: GrantFiled: September 13, 2006Date of Patent: November 25, 2008Assignee: E. I. du Pont de Nemours and CompanyInventors: Anil Kohli, Herman Hans Forsten, Kurt Hans Wyss
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Patent number: 7452832Abstract: A full-surface bonded multiple component nonwoven fabric is provided that has an improved combination of tear strength and tensile strength at lower thicknesses than known in the art. The full-surface bonded multiple component webs have a void percent between about 3% and 56% and a Frazier permeability of at least 0.155 m3/min-m2. The full-surface bonded multiple component nonwoven fabrics can be prepared in a smooth-calendering process.Type: GrantFiled: December 9, 2004Date of Patent: November 18, 2008Assignee: E.I. du Pont de Nemors and CompanyInventors: Vishal Bansal, Hyun Sung Lim, David Matthews Laura, Jr.
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Patent number: 7452589Abstract: Present invention relates to a process of forming a multi-layer pad of a non-woven fiber batt and a foam layer having conforming convoluted surfaces and to a multi-layer pad incorporating a non-woven fiber batt and foam layer. The process of forming a non-woven batt layer and a foam layer having conforming convoluted surfaces comprises transporting each layer along its longitudinal dimension while compressing each layer along its lateral dimension. Concomitantly with compression, each layer is cut transversely along its lateral dimension to separate each layer into an upper segment and a lower segment and to provide conforming convoluted surfaces on the segments of each layer, the convoluted surfaces comprised of upstanding projections and depressions.Type: GrantFiled: December 22, 2005Date of Patent: November 18, 2008Assignee: L&P Property Management CompanyInventors: Niels S. Mossbeck, Steven E. Ogle
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Patent number: 7445841Abstract: A polylactic acid resin suitable for use especially in textile products; textile products obtained from the resin as a raw material (a fiber, multifilament, monofilament, staple, false-twist yarn, long-fiber nonwoven fabric, etc.); and processes for producing these textile products. The polylactic acid resin is a resin consisting mainly of a polylactic acid and is characterized in that it is linear, has an L-isomer content of 95 mol % or higher, an Sn content of 30 ppm or lower, a monomer content of 0.50 wt. % or lower, and has a relative viscosity of 2.7 to 3.9 or has a weight-average molecular weight of 120,000 to 220,000 and a number-average molecular weight of 60,000 to 110,000. Each of the textile products comprises the polylactic acid resin as the main material. The textile products each comprises a polylactic acid that is excellent in processability and excellent fiber properties. The free textile products are problems in practical use.Type: GrantFiled: June 19, 2000Date of Patent: November 4, 2008Assignee: Toray Industries, Inc.Inventors: Hiroshi Kaijiyama, Hideo Ueda, Hiroji Yoshida, Toichi Ogura
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Patent number: 7442429Abstract: A grain-finished artificial leather composed of a base layer and a coating layer Y formed on one of the surfaces of the base layer. The base layer is composed of an entangled nonwoven fabric X made of bundles of microfine fibers having an average single fiber fineness of 0.07 dtex or less and impregnated with a polymeric elastomer A and a polymeric elastomer B. The entangled nonwoven fabric X is composed of a lower layer XA and an upper layer XB wherein the lower layer XA is impregnated mainly with the polymeric elastomer A which is substantially not adhered to the bundles of microfine fibers and the upper layer XB is impregnated mainly with the polymeric elastomer B which is substantially not adhered to the bundles of microfine fibers.Type: GrantFiled: April 26, 2005Date of Patent: October 28, 2008Assignee: Kuraray Co., Ltd.Inventors: Masaru Makimura, Hisao Yoneda
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Patent number: 7435693Abstract: A non-crimped, unidirectional fabric. The fabric includes a plurality of non-crimped, unidirectional fibers arranged parallel to one another. Weft fibers are arranged perpendicular to the non-crimped, unidirectional fibers. Warp fibers are arranged parallel to the non-crimped, unidirectional fibers. The weft fibers are woven around the non-crimped, unidirectional fibers and around the warp fibers without crimping the unidirectional fibers. A non-woven thermoplastic fabric is secured, such as by melt bonding, to the non-crimped unidirectional fibers to act as a toughening layer and improve the impact resistance of the fabric after it is molded into a part.Type: GrantFiled: January 7, 2005Date of Patent: October 14, 2008Assignee: The Boeing CompanyInventors: Thomas K Tsotsis, Winfried Steinhauser
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Patent number: 7431982Abstract: A cushion sheet has a sheet body and a low-friction layer formed on the sheet body. The low-friction layer is formed by a plurality of synthetic resin fibers. The synthetic resin fibers are bonded with a surface of the sheet body in a state resembling a spread cloth. It is preferred that the diameter of each of the synthetic resin fibers be set in a range of 10 to 600 micrometers. It is also preferred that the amount of the synthetic resin fibers bonded with the surface of the sheet body be set in a range of 5 to 100 grams per square meter of the sheet body.Type: GrantFiled: February 14, 2006Date of Patent: October 7, 2008Assignee: Inoac CorporationInventors: Takuhiro Sasao, Tunenori Oguri, Noriyoshi Takami
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Patent number: 7416777Abstract: A disposable diaper including an ink-printed substrate web exhibiting ink rub-off resistance. The substrate web is printed with an ink composition to form an ink film on the substrate web. The ink film is coated with a coating composition to form a coating film on the ink film. At least one of the ink composition and the coating composition forms a cross-linked structure within the film thereof and forms a cross-linked structure with the other composition between the ink film and the coating film. A method for making the diaper includes the steps of printing and coating the ink film.Type: GrantFiled: March 2, 2007Date of Patent: August 26, 2008Assignee: The Procter & Gamble CompanyInventors: Radhakrishnan Janardanan Nair, Shunketsu Sue
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Patent number: 7405171Abstract: PROBLEM TO BE SOLVED: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. SOLUTION: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.Type: GrantFiled: August 5, 2003Date of Patent: July 29, 2008Assignees: Chisso Corporation, Chisso Polypro Fiber Company LimitedInventors: Yoshimi Tsujiyama, Hisanobu Minamizawa, Junji Iwata
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Patent number: 7399718Abstract: The invention relates to a multilayer material comprising (a) a first layer that consists of plaster or that substantially consists of plaster, and (b) at least one second layer, comprising a sandwich textile fiber material. The fibers of said material are interlinked in a mechanically stable manner, are incombustible and weather-proof and the interspaces are filled with a finely porous material. The second layer has a diffusion-equivalent air layer thickness of not more than 2.0 m and is water-impermeable at a water pressure of at least 100 mm water column. The inventive material can be used outdoors due to its properties. The invention further relates to methods for producing such a material.Type: GrantFiled: February 22, 2002Date of Patent: July 15, 2008Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Gert Neumann, Friedrich Raether, Holger Boese, Peter Loeschke, Volker Thole, Johann W. Herlyn, Heinz Sattler
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Patent number: 7384881Abstract: An aqueous composition that includes a) aqueous hydroxy functional, carboxy functional polymer including the reaction product of at least 5% by weight ?,?-ethylenically unsaturated hydroxy monomer, at least 30% by weight ethylenically unsaturated carboxylic acid monomer, from 0% by weight to less than 50% by weight ?,?-ethylenically unsaturated nonhydroxy functional, noncarboxy functional monomer, and chain transfer agent, and b) condensation accelerator, and articles that include a nonwoven web including glass fibers, and cured aqueous binder composition.Type: GrantFiled: August 16, 2002Date of Patent: June 10, 2008Assignee: H.B. Fuller Licensing & Financing, Inc.Inventors: Wayne P. Miller, Stewart C. Anderson, Michael J. Dochniak
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Patent number: 7381667Abstract: A non-woven hydroentangled textile is described formed in cross-section with a central area of low mass fiber density surrounded on both sides by areas of higher mass density. Further, a personal cleansing article is described wherein the hydroentangled textile is associated with a personal cleansing composition that includes a lathering surfactant. The composition is deposited onto, impregnated into or at least is partially enclosed by the textile. Also described is a process for producing the textile involving feeding into a hydroentangling unit a loose random assembly of fibers both above and below a fibrous screen modifying textile substrate.Type: GrantFiled: August 21, 2003Date of Patent: June 3, 2008Assignee: Unilever Home & Personal care USA, division of Conopco, Inc.Inventors: Paul Roland Bergquist, Shauna Mary Lagatol, Jesus Antonio Urbaez, David Robert Williams, Gregory Aaron Grissett, Filomena Augusta Macedo
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Patent number: 7381666Abstract: A breathable viral barrier film, viral barrier laminate and surgical articles including the film or laminate are provided. The film has viral barrier properties in the presence of low surface tension liquids, as well as in the presence of aqueous liquids. The film includes a core layer surrounded by two skin layers. The core layer includes a polymer matrix, filler particles, and at least 0.5% by weight of a selected fluorochemical. The film is bonded to one or more nonwoven webs to provide laminates useful in surgical articles.Type: GrantFiled: December 20, 2002Date of Patent: June 3, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Sylvia B. Little, Roger Bradshaw Quincy, III, John A. Rotella, Phillip A. Schorr, Steven R. Stopper
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Patent number: 7378360Abstract: A water dispersible nonwoven web is disclosed. The nonwoven web is produced in an airlaying process and contains pulp fibers mixed with water soluble fibers. The water soluble fibers may be, for instance, polyvinyl alcohol fibers. The nonwoven web may be pre-saturated with a cleaning solution. Once pre-saturated with a cleaning solution, the wiping product is particularly well suited to cleaning and/or disinfecting surfaces, such as toilet seats prior to use. Because the nonwoven web is water dispersible, the wiper may be disposed of by being flushed down a toilet.Type: GrantFiled: December 17, 2003Date of Patent: May 27, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: James W. Clark, Joseph Mitchell
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Patent number: 7307031Abstract: A breathable composite sheet material, a method for making such a sheet material, and an absorbent article utilizing the sheet material are provided. The composite sheet material is comprised of a thermoplastic film adhered directly to a fibrous substrate. The thermoplastic film comprises at least 50% by weight of a polymer material from the group of block copolyether esters, block copolyether amides and polyurethanes. The substrate comprises a fibrous web of at least 50% by weight of polyolefin polymer synthetic fibers. The composite sheet exhibits 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, and a moisture vapor transmission rate, according to the desiccant method, of at least 1500 g/m2/24 hr.Type: GrantFiled: January 7, 2004Date of Patent: December 11, 2007Assignee: The Procter & Gamble CompanyInventors: Nora Liu Carroll, Hyun Sung Lim, George Joseph Ostapchenko, Shailaja R. Vaidya, J. Michael McKenna, John Joseph Curro, Gary Dean Lavon, Richard L. Sparks