Fiber Is Nonlinear (e.g., Crimped, Sinusoidal, Etc.) Patents (Class 428/298.4)
-
Patent number: 11547777Abstract: Techniques to fabricate and use a nanocomposite coating that includes one or more nanotubes such as carbon nanotubes are disclosed. In some examples, a guidewire may include the nanocomposite material. The guidewire is immune to electromagnetic interference, is thermally robust, and is capable of accommodating inactive markers and active electronics.Type: GrantFiled: June 26, 2018Date of Patent: January 10, 2023Assignee: The Regents of the University of CaliforniaInventors: Sanjeet Hegde, Kanishka Ratnayaka, John Moore, Sunghoon Park, Prabhakar Bandaru
-
Patent number: 10619276Abstract: A nonwoven fabric web having an excellent sound absorption coefficient in a frequency range from 800 Hz to 1000 Hz when used as a sound absorbing member for a vehicle exterior. The nonwoven fabric web including a nonwoven fabric having meltblown fibers and binder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least, the weight per unit area of the nonwoven fabric being from 400 g/m2 to 1500 g/m2, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm.Type: GrantFiled: April 28, 2015Date of Patent: April 14, 2020Assignee: 3M Innovative Properties CompanyInventors: Daisuke Kurashima, Koji Imai, Kenichi Yoda
-
Patent number: 8415002Abstract: A method of manufacturing a circuit board which may include the steps of forming a circuit board with horizontal and vertical fiberglass fibers, rotating the circuit board, and cutting the circuit board so that the horizontal and vertical fiberglass fibers form a non-right angle with a cut line of the circuit board. The circuit board may have a plurality of conductive traces located thereon which pass by areas of higher fiberglass-to-resin material and lower fiberglass-to-resin material to assist in reducing differential to common mode conversion between signals in the plurality of conducive traces.Type: GrantFiled: March 15, 2010Date of Patent: April 9, 2013Assignee: Intel CorporationInventors: James A. McCall, David Shykind
-
Patent number: 8211536Abstract: The invention relates to a composite solid surface article. More particularly, the invention relates to a composite solid surface article containing fibers and polymeric powder particles. A composite solid surface article may comprise a matrix of at least one polymeric resin, randomly-shaped fibers dispersed in the matrix, wherein the article comprises a substantially smooth surface with a viewable pattern formed by one or more ingredients of the composite solid surface article, the viewable pattern comprises at least part of the randomly-shaped fibers.Type: GrantFiled: December 8, 2005Date of Patent: July 3, 2012Assignee: Cheil Industries Inc.Inventors: Do Choon Rha, Eung Seo Park, Jae Wook Juen
-
Patent number: 7662467Abstract: A CNT composite (10) includes a matrix (14) and a number of CNTs (12) embedded in the matrix. The matrix has a surface (102) and an opposite surface (104). Head portions of the respective CNTs are consistently oriented, parallel to the surfaces of the matrix. A method for manufacturing the composite includes (a) providing a substrate and depositing a catalyst film on the substrate; (b) forming the array of CNTs via the catalyst film on the substrate; (c) immersing the CNTs in a liquid matrix material, infusing the liquid matrix material into the array of CNTs; (d) taking the carbon nanotubes with the infused matrix out of the liquid matrix; (e) pressing the still-soft matrix and the CNTs therein, in order to arrange the CNTs consistently and parallel to the surfaces of the matrix; and (f) solidifying and peeling away the matrix to produce the CNT composite.Type: GrantFiled: October 17, 2006Date of Patent: February 16, 2010Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Qing-Wei Li, Chang-Hong Liu, Shou-Shan Fan
-
Patent number: 7618702Abstract: Composite of polyamide layer solvent bonded to cellulosic substrate is formed by solution electrospinning deposit of polyamide on cellulosic substrate with the solution subjected to electrospinning containing as solvent for polyamide one that swells cellulosic fibers on contact therewith and/or by depositing very long polyamide fibers of low average diameter.Type: GrantFiled: December 13, 2006Date of Patent: November 17, 2009Assignee: Cornell Research Foundation, Inc.Inventors: Margaret W. Frey, Lei Li, Thomas B. Green
-
Patent number: 7462392Abstract: Non-fractured, non-fibrillatable short fibers, for reinforcing matrix materials such as concrete, have substantially uniform transverse cross-sectional areas along their length for maximum efficiency in pull-out resistance, and two different tapering characteristics along their lengths. Preferred bi-tapered fibers of the invention have a high modulus of elasticity in the range of 5-250 Gigapascal and are preferably modulated in both tapering dimensions. Matrix materials containing the fibers, as well as a method for making the fibers, are disclosed.Type: GrantFiled: February 3, 2006Date of Patent: December 9, 2008Assignee: W. R. Grace & Co.-Conn.Inventors: Anandakumar Ranganathan, Klaus-Alexander Rieder
-
Patent number: 7459200Abstract: A circuit board is described where the fiberglass fiber pattern as been modified than what is found in conventional FR4 circuit boards. In one embodiment, the sets of fiberglass fibers are disposed in a zig-zag or herringbone manner. In one use, when a pair of conductors are disposed onto or into the board, the material surrounding a first conductor tends to be similar to the material surrounding a second conductor. Doing so may reduce differential to common mode conversion between the conductors.Type: GrantFiled: August 15, 2003Date of Patent: December 2, 2008Assignee: Intel CorporationInventors: James A. McCall, David Shykind
-
Patent number: 7220474Abstract: A resin composition for producing a molded article having a surface which has an appearance of a non-woven fabric, which comprises fiber piles of a carbonized polyacrylonitrile having a nitrogen content of 10% by weight or more, a size of 1 to 15 denier and a length of 0.1 to 1 mm. A process for producing a molded article of a resin having a surface which has an appearance of a non-woven fabric which comprises mixing the resin composition with an uncolored resin and molding the prepared mixture. A molded article produced by molding the resin composition. The resin composition can be pelletized with stability and, when the resin composition is mixed with pellets of an uncolored resin and molded, the molded article shows excellent mechanical properties and durability for a long time, exhibits a non-woven fabric appearance with warmth ad depth and has an excellent recycling property.Type: GrantFiled: May 13, 2003Date of Patent: May 22, 2007Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Masaki Kondou, Isamu Yamaguchi, Masaki Mizuno, Nobuhiko Todaka
-
Publication number: 20040175556Abstract: A textured fabric having at least one surface that contains peaks and valleys is provided. Greater than about 90% of the peaks and less than about 10% of the valleys are disposed with a treatment composition, the treatment composition comprising a latex polymer. In one embodiment, for example, the textured fabric is a hydraulically entangled composite fabric formed from a spunbond nonwoven web and pulp fibers. When coated onto the fabric, the treatment composition may form a thin film layer on the fiber surface that prevents fibers or zones of fibers from breaking away from the surface as lint. Further, because the coating is applied only to the peaks, the valleys may remain free of the latex polymer and substantially maintain the absorbency of the uncoated fabric.Type: ApplicationFiled: March 3, 2003Publication date: September 9, 2004Applicant: Kimberly-Clark Worldwide, Inc.Inventors: James W. Clark, Ming Xie, James J. Detamore
-
Patent number: 6734335Abstract: A unitary absorbent composite having a plurality of strata is disclosed. In the composite, adjacent strata are separated by a transition zone integrally connecting the strata. Each stratum includes fibers and a binder, and the transition zone includes fibers from adjacent strata. Method for forming the unitary composite are also disclosed.Type: GrantFiled: June 4, 1999Date of Patent: May 11, 2004Assignee: Weyerhaeuser CompanyInventors: Peter A. Graef, Daniel T. Bunker, Charles E. Miller, Jeffrey D. Mathews, Fred B. Howard, Terry M. Grant, Shahrokh A. Naieni, David G. Marsh, Melissa L. Dopps, Kay Rokman, Juhani Jansson, Eino Laine
-
Patent number: 6660372Abstract: A resin composition for producing a molded article having a surface which has an appearance of a non-woven fabric, which comprises fiber piles of carbonized polyacrylonitrile having a nitrogen content of 10% by weight or more or fiber piles of viscose rayon mass-colored with a pigment; a process for producing a molded article of a resin having a surface which has an appearance of a non-woven fabric which comprises mixing the resin composition with an uncolored resin and molding the prepared mixture; and a molded article produced by using the resin composition. The resin composition can be pelletized with stability and, when the resin composition is mixed with pellets of an uncolored resin and molded, the molded article shows excellent mechanical properties and durability for a long time, exhibits a non-woven fabric appearance with warmth and depth and has an excellent recycling property.Type: GrantFiled: March 24, 2000Date of Patent: December 9, 2003Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Masaki Kondou, Isamu Yamaguchi, Masaki Mizuno, Nobuhiko Todaka
-
Publication number: 20030134557Abstract: A flooring material having a textile pad substructure with about 60% slightly crimped 6D nylon is provided. The textile pad has reinforcement and binding fibers. The binding fibers are thermoplastic and are used to bind the reinforcement fibers together. The pad is created by heating and compressing a fibrous textile batt so that it has a density of about 7.1 lbs per cubic ft.Type: ApplicationFiled: February 28, 2003Publication date: July 17, 2003Inventors: Alan B. Collison, Chad A. Collison
-
Patent number: 6553734Abstract: An uncured, thermoset resin sheet is reinforced with oriented fibers and is slit to define a desired length for the fibers. A series of the sheets are cut and stacked to form integrated layers of the composite material for a structural panel. The panel has two outer layers that sandwich two shorter layers on each end, and syntactic or foamed resin layer in between. Each of the composite layers is formed from the same materials and by the same process, but may vary in the directional orientation of their fibers. The uncured panel is assembled into a flexible, substantially flat configuration is heated and formed to the contours of a tool having a undulated surface geometry. The panel is further heated to cure the combined composite and syntactic resins into a series of undulations that permeate each of its layers. In one embodiment, the undulations are in a smooth, sine wave-like pattern that allow the panel to maintain a planar configuration.Type: GrantFiled: August 24, 2000Date of Patent: April 29, 2003Assignee: Lockheed Martin CorporationInventors: Elbert Lee McKague, Jr., David T Uhl
-
Patent number: 6524692Abstract: An energy absorbing structural laminate comprising: (a) a first layer of composite material comprising x1 plies; wherein at least 0.5x1 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; (b) a second layer of composite material comprising x2 plies; wherein at least 0.5x2 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; and (c) a viscoelastic layer disposed between the first and second layers such that shear strains are substantially distributed throughout the viscoelastic layer when a load is applied to the structural laminate.Type: GrantFiled: May 2, 2000Date of Patent: February 25, 2003Assignee: Structured Composites, LPInventor: B. Walter Rosen
-
Patent number: 6335087Abstract: A yarn for use in a cement mortar matrix, includes a core and a multitude of staple fibers forming a layer which envelopes the core and provides an extended surface area and interstical spaces for infiltration by cement fines and hydrates. The staple fibers are spun around the core and attached to the core, and have sufficient freedom of radial movement to provide said spaces and permit ingress of cement fines and the formation of hydrates in said spaces.Type: GrantFiled: November 16, 1998Date of Patent: January 1, 2002Inventor: Donald Henry Hourahane
-
Patent number: 6274230Abstract: A process for producing sharp surface visible patterns on composite articles formed of resin coated reinforcing strands employs a liquid uncured resin having a coloring component therein to produce an opaque resin of light color to mask the color of the reinforcing strands. An absorbent surface veil is applied to the surface of the article before curing the resin to produce an absorbent opaque surface layer of light color into which a pattern of contrasting color is then transferred by sublimating an ink or dye pattern from a pattern carrier into the opaque resin impregnated surface layer and veil. Articles ready for application of the surface pattern thereto by sublimation may be produced using pultrusion or hand lay-up methods. Distribution of the surface pattern partially or entirely through the thickness of the surface layer results in an article having a surface in which the pattern remains sharply visible despite surface wear.Type: GrantFiled: June 25, 1999Date of Patent: August 14, 2001Assignee: Jas. D. Easton, Inc.Inventors: Didier Sarrelongue, Edwin A. Rowsell, Philip A. Dixon, Peter Yan