Patents Examined by Christopher Pratt
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Patent number: 6838154Abstract: There is provided a resilient, three dimensional material having fibrous texture and appearance and capable of fluid handling. It consists of a top surface and a bottom surface wherein fiber-like elements typically extend from one surface to the other forming flat to undulating surfaces characterized by a multiplicity of interconnected fluid passageways. Deformed, discontinuous film-like or encapsulated regions connect fiber-like elements and stabilize the material. The material of this invention is unique based on the three principle characteristics which are communicated in this application: 1) ff(?)<0.87, 2) SA/VV<186 cm2/cm3, and 3) caliper<0.150 inches. This material is useful for a number of purposes, such as for use as a liner for personal care products like diapers, absorbent underpants, swim wear, feminine hygiene products, adult incontinence products and the like.Type: GrantFiled: December 9, 1998Date of Patent: January 4, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Eugenio Go Varona, Monica Lynn Bontrager, Jaime Braverman, Kuo-Shu Edward Chang, Michael Allen Daley, Karen Lynn English, Arthur Edward Garavaglia, Hristo Angelov Hristov, Nancy Donaldson Kollin, Tamara Lee Mace, David Michael Matela, Sharon Rymer, Reginald Smith, Roland Columbus Smith, Jr., Michael Donald Sperl
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Patent number: 6838399Abstract: There is provided and fibrous layer for personal care products wherein the fibrous layer is made from micro-fine fibers deposited as an aqueous slurry onto a nonwoven web, and subsequently dried. The micro-fine fibers have a diameter from a positive amount to 0.5 microns. The nonwoven web may be produced from a number of methods, such as meltblowing, spunbonding, coforming, bonding and carding, and airlaying. The micro-fine fiber layer can be used to adjust the permeability of the nonwoven web, thus providing a method of controlling the rate of fluid movement through a personal care product, like diapers, training pants, incontinence garments and feminine hygiene products.Type: GrantFiled: December 1, 2000Date of Patent: January 4, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ganesh Chandra Deka, Margaret Gwyn Latimer, Charles Allen Smith
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Patent number: 6815380Abstract: A process for preparing a fiberglass insulation product, including the steps of: (a) providing a layer of kraft paper, (b) coating the kraft paper layer with from 2 to 10 pounds of HDPE or of polypropylene per 3000 square feet of the paper to form an HDPE-kraft laminate or a polypropylene-kraft laminate, (c) coating the HDPE-kraft or polypropylene-kraft laminate with from 3 to 10 pounds of LDPE per 3000 square feet of the HDPE-kraft laminate or polypropylene-kraft laminate to form an LDPE-HDPE-kraft laminate or an LDPE-polypropylene-kraft laminate, (d) adjusting the temperature of the LDPE-HDPE-kraft laminate or the LDPE-polypropylene-kraft laminate so that the LDPE becomes tacky while the HDPE or polypropylene remains solid, (e) providing a layer of fiberglass wool, and (f) contacting the LDPE layer of the LDPE-HDPE-kraft laminate or of the LDPE-polypropylene-kraft laminate with the fiberglass wool layer with pressure and cooling to bond the LDPE-HDPE-kraft laminate or LDPE-polypropylene-kraft laminate to thType: GrantFiled: June 27, 2001Date of Patent: November 9, 2004Assignee: Owens Corning Fiberglas Technology, Inc.Inventor: James G. Snyder
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Patent number: 6815382Abstract: A nonwoven fabric for manufacturing repeatedly re-usable clean-room protective clothing, made of super microfilaments having a titer of less the 0.2 dtex that are produced by water jet splitting multicomponent multisegment filaments having a titer of less than 2 dtex, the primary filaments being spun from the melt, aerodynamically stretched, laid to form a nonwoven fabric, and subjected to water-jet prebonding prior to splitting.Type: GrantFiled: May 9, 2002Date of Patent: November 9, 2004Assignee: Carl Freudenberg KGInventors: Robert Groten, Holger Schilling, Arnold Bremann, Hartwig Von Der Mühlen
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Patent number: 6812169Abstract: A personal care absorbent article, such as a sanitary pad or napkin, wound dressing, and the like having an absorbent material treated with a fluid treatment agent, which fluid treatment agent causes red blood cells in a blood-containing fluid to agglomerate or lyse as the fluid passes into and/or through the absorbent article. In accordance with one preferred embodiment, the absorbent material is a porous nonwoven web material.Type: GrantFiled: November 9, 2001Date of Patent: November 2, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David Charles Potts, Jack Nelson Lindon, Emmanuelle Cecile Damay, Dmitry Yavich, Matthew David Young
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Patent number: 6797653Abstract: A polymeric fiber liner insulation includes of a resilient, insulation blanket core of randomly oriented entangled fibers with between 60% and 90% by weight of the fibers being standard polymeric fibers and/or flame retardant polymeric fibers and between 10% and 40% by weight of the fibers being polymeric lofting and bonding fibers. The first major surface the liner insulation has a low porosity or air and/or liquid impervious surface layer. The surface layer is formed by melting and consolidating fibers at and adjacent the first major surface of the blanket core or by coating the first major surface of the blanket core with a polymeric coating. The liner insulation exhibits a flame spread/smoke developed index of ≦25/50.Type: GrantFiled: September 28, 2001Date of Patent: September 28, 2004Assignee: Johns Manville International, Inc.Inventor: Ralph Michael Fay
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Patent number: 6774070Abstract: A disposable wipe-out sheet That comprises a plurality of synthetic resin filaments bonded to a synthetic resin base sheet. The synthetic resin filaments comprise core-sheath type conjugated fiber in which the sheath has a melting point that is at least 30° C. lower than the melting point of the core.Type: GrantFiled: October 11, 2001Date of Patent: August 10, 2004Assignee: Uni-Charm CorporationInventors: Yasuhiko Kenmochi, Yoshinori Tanaka
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Patent number: 6759356Abstract: A thermoplastic polymer electret material comprising a porous substrate of a blend of a first thermoplastic polymer, such as a polyolefin or polyamide, and from 0.1% to about 25% by weight, of a compatible telomer. The porous substrate is electrostatically charge and is well suited for use in filter media, sterilization wraps, face masks, dust wipes and the like.Type: GrantFiled: June 28, 1999Date of Patent: July 6, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventor: David Lewis Myers
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Patent number: 6746760Abstract: The gas adsorption sheet of the present invention has a granular activated carbon-containing sheet comprising a granular activated carbon having an average particle diameter of 60 to 600 &mgr;m, a supporting fiber for fixing the granular activated carbon in contact with it, and an adhesive fiber which mainly contributes to shape retention. An air-purifying filter of the present invention is obtained by forming the gas adsorption sheet into a shape of pleats or wave. A method for producing a gas adsorption sheet of the present invention comprises a step of forming a granular activated carbon-containing sheet by using an aqueous slurry containing a granular activated carbon, a supporting fiber and a water-swelling adhesive fiber.Type: GrantFiled: August 10, 2001Date of Patent: June 8, 2004Assignee: Toyobo Co., LTDInventors: Shinichi Minemura, Masayuki Imagawa
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Patent number: 6746978Abstract: Heat bonded thermoplastic and partially thermoplastic nonwoven webs which have been thermomechanically treated while under low strain rate tension show significant improvement to their coformability and softness. More importantly the low strain rate thermomechanical treatment imparts a high degree of commercially valuable elasticity. The resultant webs find use in all nonwoven applications where softness, conformability and elasticity are useful. The resultant webs develop elasticity in only one direction but the two embodiments provide the ability to create elasticity in the machine or cross machine direction of a roll of precursor material. In addition virtually any precursor web containing at least 70% thermally bonded thermoplastic fibers can be used.Type: GrantFiled: March 22, 2000Date of Patent: June 8, 2004Inventor: Gregory F. Ward
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Patent number: 6730387Abstract: An absorbent material having substantially improved structural stability in the dry and wet states. The absorbent materials are significantly less susceptible to handling losses of absorbent gelling particles during manufacturing operations. The absorbent material also is not subject to shifting of the absorbent gelling particles during or after swelling by fluids. The absorbent material comprises absorbent gelling particles comprising (a) a water-insoluble absorbent hydrogel-forming polymer; (b) a polycationic polymer bonded to the absorbent gelling particles at the surface thereof; (c) glue microfibers dispersed in the absorbent gelling particles; and (d) a carrier layer bonded to the absorbent gelling particles through the glue microfibers. The invention further relates to a method of making the absorbent materials, and the absorbent articles comprising the absorbent materials.Type: GrantFiled: October 12, 1998Date of Patent: May 4, 2004Assignee: The Procter & Gamble CompanyInventors: Ebrahim Rezai, Kesyin Hsueh
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Patent number: 6720062Abstract: A grip structure includes a surface material layer, a substrate material layer, the surface material layer and the substrate material layer laminated with each other, and a plurality of evenly distributed bonding combination points secured between the surface material layer and the substrate material layer, so that the surface material layer can be bonded and combined with the substrate material layer by the bonding combination points. In such a manner, the sweat or water will return to infiltrate into the surface of the grip structure in a slower speed, thereby greatly enhancing the comfortable sensation of holding the grip structure of the racket.Type: GrantFiled: June 21, 2001Date of Patent: April 13, 2004Inventor: Hunter Jaw
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Patent number: 6376047Abstract: The present invention provides a band body which is used for a strap of a cordless telephone, a pull tab of a slider, and the like, has a proper degree of rigidity and flexibility, and is easy to handle and use. Multifilaments of synthetic fiber are used as warp yarns at opposite longitudinal edge portions of the band body, hollow pipe wire rods molded from thermoplastic resin and having a diameter in a range of 0.5 to 2.0 mm are used as warp yarns at a center portion of the band body, and a monofilament which is synthetic fiber is used as a weft yarn so as to form thick, flexible, and resilient woven fabrics at the opposite longitudinal edge portions of the band body and a thin, rigid, and resilient woven fabric at the center portion of the band body.Type: GrantFiled: May 21, 1999Date of Patent: April 23, 2002Assignee: YKK CorporationInventor: Takayuki Hasegawa