Plural Foamed Layers Patents (Class 442/372)
  • Patent number: 10894383
    Abstract: A textile composite material for lamination, in particular a textile composite material for lamination of a seat cover, with at least one nonwoven fabric component and with at least one foam material component which is connected to the nonwoven fabric component, wherein the nonwoven fabric component and the foam material component are mechanically connected to each other. The nonwoven fabric component and the foam material component may be needled with each other, wherein a holding force between the nonwoven fabric component and the foam material component, which acts counter to a foam-nonwoven separating force, is greater than 1 N.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: January 19, 2021
    Assignee: J.H. Ziegler GmbH
    Inventor: Steffi Schoenfelder
  • Patent number: 10851304
    Abstract: The present application discloses a fireproof buffering structure which includes a buffering plate and a fireproof plate attached thereto. A combustion rate of the fireproof plate is lower than that of the buffering plate. In contrast to conventional buffering structures, the fireproof buffering structure adopts the combined buffering plate and fireproof plate. The buffering plate has good impact absorbing capacity for providing a soft and comfortable seating environment and buffering and protection effects during a crash accident, and the fireproof plate can reduce the combustion rate of the integral structure when catching fire. Therefore, the fireproof buffering structure achieves the purposes of safety and comfort. The present application further discloses a supporting cushion apparatus which includes a covering member and the aforementioned fireproof buffering structure accommodated therein.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: December 1, 2020
    Assignee: Wonderland Switzerland AG
    Inventors: Yong Chao Kou, Feng Xiang Yan, Jian Hui Liu
  • Patent number: 9091018
    Abstract: Methods of forming a stitched multi-layer fabric are provided. An embodiment method includes stitching an interior layer to a barrier layer, the interior layer comprising a first non-waterproof fabric and the barrier layer configured to inhibit fluid flow, disposing a face layer over the barrier layer without contacting the interior layer, the face layer comprising a second non-waterproof fabric, and melting a portion of the barrier layer to bond the face layer to the barrier layer and to fill stitch holes formed in the barrier layer during the stitching.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: July 28, 2015
    Assignee: SWNR Development, LLC
    Inventors: William Thomas Woods, II, Douglas Stanley Lumb, Daniel L. English
  • Publication number: 20140287641
    Abstract: Composites comprising aerogel materials are generally described. Layered aerogel composites may be of great utility for a wide variety of applications including lightweight structures, ballistic panels, multilayer thermal and acoustic insulation, spacecraft reentry shielding, supercapacitors, batteries, acoustic insulation, and flexible garments. Layered aerogel composites may be prepared by combing layers of fiber-containing sheets and multisheet plies with aerogel materials. Composites comprising mechanically strong aerogels and reticulated aerogel structures are described. Various nanocomposite aerogel materials may be prepared to facilitate production of composites with desirable functions and properties.
    Type: Application
    Filed: March 15, 2014
    Publication date: September 25, 2014
    Applicant: Aerogel Technologies, LLC
    Inventor: Stephen A. Steiner, III
  • Publication number: 20140287644
    Abstract: Disclosed is a sound-absorbing material for an automobile, using foaming urethane foam to which carbon nano-tubes are applied, and a preparation method thereof. More particularly, disclosed is a sound-absorbing material for an automobile, which has excellent sound absorption and insulation performance while maintaining excellent flame retardancy, by increasing the ratio of open cells while uniformly maintaining the cell structure of the foam by adding carbon nano-tubes as a substitute for a portion of a flame retardant filler, and a preparation method thereof.
    Type: Application
    Filed: October 24, 2013
    Publication date: September 25, 2014
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventor: Jung-Wook Lee
  • Patent number: 8759235
    Abstract: A new orthopedic prayer mat proposed, whereas the new orthopedic prayer mat has a multiple layered structure. The top layer is made from microfiber which is antimicrobial, anti-molding, water-resistant, anti-dust and heat-resistant. The bottom layer is an anti-slip layer to prevent the user from physical injury in any situation while using the mat, and a soft polyurethane layer and an anti-fatigue layer or a hard polyurethane layer are arranged between the top microfiber layer and the bottom anti-slip layer in order to absorb pressure pressure and providing support, and the soft and hard polyurethane layer are combined at an angle to adjust the ratio of the weight-absorption and bearing to form the orthopedic prayer mat. Further the angle between the layers is tailored for users according to user's weight, height, body structure type and healthy conditions.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: June 24, 2014
    Inventor: Nader Sabry
  • Patent number: 8747587
    Abstract: A multi-layered material and a method for making the same are provided. The multi-layered material includes a first foamed layer, a substrate, a second foamed layer, and a surface layer. The first foamed layer has a plurality of first cells. The substrate is a fabric. The second foamed layer has a plurality of second cells. The foaming method of the second foamed layer is different from that of the first foamed layer. The size of the second cells is different from that of the first cells. The variation in size of the second cells is different from that of the first cells. The surface layer is disposed on the second foamed layer. Thus, when the multi-layered material is used as a surface cover of a ball, it can provide excellent resilience and control, and improve manufacturing efficiency.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: June 10, 2014
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, Yung-Yu Fu, Kun-Lin Chiang, Jung-Ching Chang, Chih-Chenh Lin, Chun-Wei Wu, Pei-Huo Huang, I-Peng Yao
  • Publication number: 20130303041
    Abstract: The present application discloses a composite material with cushioning qualities, comprising multiple sheeting structures bonded to each other in layers.
    Type: Application
    Filed: March 14, 2013
    Publication date: November 14, 2013
    Inventor: Daniel Kim
  • Patent number: 8569190
    Abstract: The waterproof/breathable moisture transfer liner for a snowboard boot includes an inner liner selected from technically advanced fabrics which are carefully selected. A series of layers are provided outside the inner liner including foam material layers, breathable membranes, a supportive mesh or a moldable foam, and an outer shell fabric. The applicability of the liner to alpine, cross country and hiking boots, along with appropriate variations for each application.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: October 29, 2013
    Assignee: Solid Water Holdings
    Inventor: Baychar
  • Publication number: 20130186546
    Abstract: A multi-layer material suitable for use as a covering for an article includes a polymeric cellular layer and nonwoven backing layer. The multi-layer material having a creasability angle of between about 20 and about 160 degrees.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 25, 2013
    Inventors: JIAN LING DING, ARTHUR VICTOR FLEURY, JR., CHARLES E. SNYDER, JASON CURTIS HINKLE, DANIEL T. BUNKER
  • Publication number: 20130174344
    Abstract: Components are disclosed that include a first layer and a second layer affixed to the first layer or an optional third layer. At least one of the first layer and the second layer includes a gel foam.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 11, 2013
    Inventors: Steve Klancnik, Leona Wightman
  • Publication number: 20120231691
    Abstract: Porous multilayer articles and methods of making are disclosed. Multicomponent polymeric fibers are introduced into a forming chamber and are deposited onto a first porous substrate. The multicomponent fibers are then bonded to each other to form a porous coherent web, and the porous coherent web is bonded to the first porous substrate, so as to form a porous multilayer article. The porous coherent web contains particles that are bonded to the multicomponent fibers of the web. The particles in the porous coherent web may be e.g. abrasive, absorbent, etc.
    Type: Application
    Filed: October 15, 2010
    Publication date: September 13, 2012
    Inventors: Jeremie Peyras-Carratte, Jean-Marie Coant
  • Publication number: 20120202029
    Abstract: Provided are: a porous film for a heat-sealable bag-constituting member which has a high seal strength and is resistant to edge tear when heat-sealed to form a bag, and excels in workability (bag productivity); and a porous film for a heat-sealable bag-constituting member which enables the use of a polyolefinic nonwoven fabric to be laminated (combined) therewith. The porous film (11) for a heat-sealable bag-constituting member includes a porous film layer (layer A) (11a) and another porous film layer (layer B) (11b). Resinous component(s) constituting the layer A (11a) contains 50 percent by weight or more of at least one polyethylene (a) having a melting point of 90° C. or higher and lower than 110° C., and resinous component(s) constituting the layer B (11b) contains 50 percent by weight or more of at least one polyethylene (b) having a melting point of 110° C. or higher and 140° C. or lower.
    Type: Application
    Filed: October 14, 2010
    Publication date: August 9, 2012
    Applicant: NITTO LIKETEC CORPORATION
    Inventor: Kaori Ohnishi
  • Publication number: 20110308181
    Abstract: A composite sheet useful as a housewrap is provided having a textile substrate, with a cellular, polymer layer coated on at least one side of the substrate, wherein the cellular, polymer layer is created by applying a foamed, latex coating and heating the latex to create a semi-rigid, cellular membrane, and a water repellant finish applied to the outer surface of the textile substrate or the polymer layer. The properties of the composite sheet may be further modified by calendering, to reduce the overall thickness of the sheet by 50% or more.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 22, 2011
    Inventor: David Tony FREEMAN
  • Publication number: 20110250811
    Abstract: A multi-layered material and a method for making the same are provided. The multi-layered material includes a first foamed layer, a substrate, a second foamed layer, and a surface layer. The first foamed layer has a plurality of first cells. The substrate is a fabric. The second foamed layer has a plurality of second cells. The foaming method of the second foamed layer is different from that of the first foamed layer. The size of the second cells is different from that of the first cells. The variation in size of the second cells is different from that of the first cells. The surface layer is disposed on the second foamed layer. Thus, when the multi-layered material is used as a surface cover of a ball, it can provide excellent resilience and control, and improve manufacturing efficiency.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 13, 2011
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: CHUNG-CHIH FENG, YUNG-YU FU, KUN-LIN CHIANG, JUNG-CHING CHANG, CHIH-CHENH LIN, CHUN-WEI WU, PEI-HUO HUANG, I-PENG YAO
  • Patent number: 7884038
    Abstract: The invention relates to a lining element, in particular an interior lining and/or covering element, for motor vehicles, having a decorative layer and a support layer structure with at least one support layer, in which the air permeability and/or density and/or the mass per unit area of the support layer structure are preset for controlling the acoustic properties, and to a method for producing a lining element, in particular an interior lining element or covering element for motor vehicles, having a decorative layer and a support layer structure of at least one support layer with controlled acoustic properties. In particular, the acoustic properties of the lining element are controlled by matching the thickness, and/or the mass per unit area, and/or the air permeability of the lining element in zones, or over the entire surface, to sound emissions which are to be absorbed.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: February 8, 2011
    Assignee: Ideal Automotive GmbH
    Inventor: Hubert Röding
  • Patent number: 7799710
    Abstract: A foamed composite armor laminate comprising interleaved combinations of ballistic resistant fabrics, and ceramic and/or metallic plates or sheets in a polymeric foam matrix. The foamed composite armor can be fabricated by inserting polymer powder or sheets between layers of fabric and/or ceramic or metallic sheets to form a laminated structure, heating this laminated structure under pressure to form a consolidated panel, and then foaming the polymeric portion of the consolidated panel in an autoclave or pressure vessel by saturating the polymeric portion with inert gas at elevated temperature, rapidly releasing the pressure and controllably cooling the laminated structure to ambient. Alternatively, pre-foamed panels can be laminated to fabric, ceramic and/or metallic sheets using adhesives or the like. Through proper selection of the various elements of the laminate, i.e.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: September 21, 2010
    Inventor: Seng Tan
  • Publication number: 20090325444
    Abstract: A carpet backing prepared from a polyurethane forming composition which comprises: (A) a polyisocyanate and (B) a mixture of a vegetable oil, a cross-linking agent, and a blowing agent.
    Type: Application
    Filed: September 1, 2009
    Publication date: December 31, 2009
    Applicant: Textile Management Associates, Inc.
    Inventors: Larry E. Mashburn, William H. Harrison, Thomas E. Patterson
  • Patent number: 7629042
    Abstract: Multilayer microporous films comprise first and second microporous film layers. The first film layer has a first maximum pore size and the second film layer has a second maximum pore size different from the first maximum pore size. In a more specific embodiment, the multilayer microporous films comprise coextruded first, second and third microporous film layers. One of the first, second and third film layers has a maximum pore size smaller than the respective maximum pore sizes of the remaining layers of the multilayer film or larger than the respective maximum pore sizes of the remaining layers of the multilayer film, and the one layer does not have an unconstrained surface in the multilayer film. Methods for producing multilayer microporous films provide a first film layer having a maximum pore size upon stretching which is different from that of a second film layer upon stretching.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: December 8, 2009
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Gregory K. Jones, Larry Hughey McAmish, Pai-Chuan Wu, Kenneth L. Lilly, Christopher Aaron Shelley, Mark Andrew Wendorf
  • Publication number: 20090239435
    Abstract: The present disclosure is directed to a composite material comprising one or more layers that are able to bind and deactivate chemical and/or biological agents. The first layer comprises a porous polymer substrate and a nucleophilic organic polymer cross-linked on the surface or within the pores of the porous polymer substrate using a carbamate cross-linking agent, wherein the cross-linked nucleophilic polymer comprises functional groups operative to form a covalent bond with a chemical or biological agent. The composite material is used to manufacture items of protective apparel including chemical-biological protective suits.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 24, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gary Davis, Joshua Stone, Hieu Duong, Vishal Bansal
  • Publication number: 20080160852
    Abstract: A flame retardant, heat-insulated and moisture permeable coated fabric and its manufacturing method comprises the steps of: mixing the expandable graphite with the chemical containing phosphorus or nitrogen; mixing the mixture of the expandable graphite and the chemical containing phosphorus or nitrogen in the foam material to form the to-be-coated material; one-side or two-sides coating the to-be-coated material on the surface of the textile cloth by using wet coating to form at least one flame retardant, heat-insulated and moisture permeable coating which can permeate the textile cloth on the surface of the textile cloth. Thereby, the flame retardant, heat-insulated and moisture permeable coating can absorb heat and expand to form the porous structure, which not only can absorb heat and smoke simultaneously, but also can wrap the textile cloth to avoid the phenomena of secondary combustion and melting drip.
    Type: Application
    Filed: December 10, 2007
    Publication date: July 3, 2008
    Inventor: Chou-Fu Yang
  • Publication number: 20080132134
    Abstract: A carpet backing prepared from a polyurethane forming composition which comprises: (A) a polyisocyanate and (B) a mixture of a vegetable oil, a cross-linking agent, and a blowing agent.
    Type: Application
    Filed: October 29, 2007
    Publication date: June 5, 2008
    Inventors: Larry E. MASHBURN, William H. Harrison, Thomas E. Patterson
  • Patent number: 7365031
    Abstract: A fabric including within its construction a first elongated electrical conductor crossed by a second elongated electrical conductor, the conductors being normally biased apart at a crossover point of said fibres with an air gap between them, whereby application of pressure in a direction substantially normal to a plane of the fabric causes the conductors to make contact. The fabric may be woven, knitted, non-woven or plaited. The fabric can be used as a pressure sensor, switch or other sensor.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: April 29, 2008
    Assignee: Intelligent Textiles Limited
    Inventors: Stanley Shigezo Swallow, Asha Peta-Thomson
  • Patent number: 7238630
    Abstract: A seat cushion or other resilient structure includes a foam inner core combined with layers of varying density fiber batts to impart desirable comfort characteristics, support features and durability thereto. In one embodiment, the foam core is positioned between intermediate layers of low loft fiber batts of relatively high densities. In turn, the intermediate batts are sandwiched between outer high loft fiber batts having relatively low densities. Alternately, the foam core comprises one or more intermediate layers of relatively high density fiber batts that are positioned within the foam core to create one or more fiber batt subcores. The outer high loft fiber batts sandwich the foam core comprising the fiber batt subcores to create the resilient structure.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: July 3, 2007
    Assignee: L&P Property Management Company
    Inventors: D. Patrick Steagall, Steven E. Ogle, Philip S. Kaylor, Karl Van Becelaere
  • Patent number: 7112364
    Abstract: Foaming of a resinous backing (2) to a glass sheet (1) is frustrated at the interface (3) with the glass by maintaining the glass sheet (1) cool during formation of the foam. The degree of foaming is nil at the interface (3) to effect a strong bond there, and increases progressively through the thickness of the foam body (2) away from the interface (3). The foam body (2) is backed by glass-fibre cloth (4) that is impregnated with the resin from which the foaming gas has been vented so as to bond the cloth (4) to the body (2) and to an outer aluminium foil (5). The glass sheet (3) may be a mirror, and may be replaced by a glass laminate (20;23) that includes a fused-powder coating (22;25) with or without an aluminium foil backing.
    Type: Grant
    Filed: October 9, 2000
    Date of Patent: September 26, 2006
    Assignee: Thorstone Business Management Limited
    Inventor: Roger John Leach
  • Patent number: 6901697
    Abstract: A protective winter turf cover is formed with a layered polyethylene laminated sheet with each layer having force striations running at an angle to the edge of the sheet and with the force striations of one layer at an angle to the force striations of the adjacent layer, the resulting turf cover being lightweight, compactly foldable, and substantially impermeable to water. The protective winter turf cover is efficiently held down with a dual apertured washer and x-position of nails therethrough.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: June 7, 2005
    Inventor: James E. Stoller
  • Patent number: 6893695
    Abstract: The waterproof/breathable moisture transfer liner for a snowboard boot includes an inner liner selected from technically advanced fabrics which are carefully selected. A series of layers are provided outside the inner liner including foam material layers, breathable membranes, a supportive mesh or a moldable foam, and an outer shell fabric. The applicability of the liner to alpine, cross country and hiking boots, along with appropriate variations for each application.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: May 17, 2005
    Assignee: Baychar Holdings, LLC
    Inventor: Dummy Baychar
  • Publication number: 20030096079
    Abstract: Sound attenuating laminates for use within vehicles are provided that include a substrate and polyurethane attached to selected portions of the substrate. The polyurethane is non-porous and serves as a barrier to attenuate sound passing through the substrate. Additional non-porous polyurethane may be added to one or more selected portions of the polyurethane layer to enhance sound attenuation characteristics in the one or more selected portions. Sound attenuating laminates for use within vehicles are provided that include a substrate and breathable polyurethane attached to selected portions of the substrate. The polyurethane serves as an absorber of sound (e.g., sound generated within a vehicle compartment). Additional breathable polyurethane may be added to one or more selected portions of the polyurethane layer to enhance sound absorption characteristics in the one or more selected portions.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 22, 2003
    Inventors: Anthony Messina, Surendra Khambete, Girma Gebreselassie
  • Publication number: 20030036326
    Abstract: To a composite sheet in which on one or both surfaces of an open cell foam sheet fiber cloth is bonded, a conductive metal coating is provided so as to maintain the open cell of the foam followed by providing thereon a flame retardant composition, thereby a flame retardant conductive material suitable for a gasket material for electromagnetic wave shield is obtained.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 20, 2003
    Applicant: SEIREN CO. LTD.
    Inventors: Susumu Takagi, Akihide Katayama, Sachiyo Sakagawa, Toru Takegawa
  • Publication number: 20030032358
    Abstract: A novel porous fibrous structure containing from 10 to 100% by weight of wet heat bonding fibers, having cellular cavities in the fibrous structure of the fibers, in which a plurality of indefinite cellular cavities are present independently or in a state of partially connected in the inside of the fibrous structure, at least a portion of the fibers constituting the fibrous structure is heat bonding by the wet heat bonding fibers, and a process for producing such porous fibrous structure.
    Type: Application
    Filed: October 11, 2002
    Publication date: February 13, 2003
    Applicant: KURARAY CO. LTD.
    Inventors: Tosirou Yamaguchi, Hisaharu Kuwahara, Hirokuni Tanii
  • Publication number: 20020127385
    Abstract: A microlayer polymer film comprising a plurality of coextruded microlayers including a non-degradable layer comprising a non-water degradable, melt-extrudable polymer and degradable layer comprising a water degradable, melt-extrudable polymer. The microlayer polymer film degrades when soaked in water and is suitable as a covering material for disposal items such as flushable diapers. The microlayer polymer film is also breathable and is a barrier to small amounts of water. A suitable non-water degradable, melt-extrudable polymer is linear low density polyethylene filled with a particulate filler. A suitable water degradable, melt-extrudable polymer is polyethylene oxide.
    Type: Application
    Filed: December 29, 2000
    Publication date: September 12, 2002
    Inventors: Vasily Topolkaraev, Dave A. Soerens, Kelly Dean Branham
  • Publication number: 20020058452
    Abstract: The present invention relates to a multilayer product which comprises a first element consisting of a layer of spongy, semi-rigid polymer (A), impregnated on one or both sides with polyurethane resin (B), inserted between two layers of glass fiber and/or natural fiber (C), coupled in continuous with the central layer (B) (A) (B), said first element being coupled with at least a second element comprising a layer of spongy, semi-rigid polymer (A), impregnated on one or both sides with polyurethane resin (B), said second element being in turn coupled with a further layer of glass fiber and/or natural fiber (C).
    Type: Application
    Filed: October 9, 2001
    Publication date: May 16, 2002
    Inventors: Giuseppe Di Sante, Patrizio D?apos; Ambrosio, Mario Biggio, Guerino Di Sante, Cesare Di Domenico, Gabriella Giovannelli, Claudio Sfredda
  • Patent number: 6372076
    Abstract: The 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: Grant
    Filed: September 28, 1999
    Date of Patent: April 16, 2002
    Assignee: L&P Property Management Company
    Inventor: Steven Eugene Ogle
  • Patent number: 6261674
    Abstract: A breathable microlayer polymer film comprising a plurality of coextruded microlayers including a first layer comprising a first melt-extrudable polymer and a second layer comprising second melt-extrudable polymer, the first melt-extrudable polymer having a first water vapor transmission rate and the second melt-extrudable polymer having a second water vapor transmission rate less than the first water vapor transmission rate. A method for making such a breathable film is also disclosed. The microlayer polymer film is breathable, but can also be a barrier to liquid, microbial organisms, organic toxins, and body fluids, and is suitable as a covering material for disposable items such as diapers. While the first polymer is more breathable, the second polymer can impart other properties to the microlayer film such as enhanced tensile properties.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: July 17, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kelly Dean Branham, Vasily Topolkaraev, Dave A. Soerens
  • Patent number: 6235661
    Abstract: Heat, pressure, and glue are used to form a composite material in which a layer of U.S. Coast Guard approved flotation foam is located between a pair of fabric layers which are glued to the foam layer. The process of bonding the fabric layers to the foam layer is accomplished using both heat and pressure whereby a fabric covered, foam composite structure is provided. In a preferred embodiment, a flotation foam of the type which can be included in the calculation of flotation for a U.S. Coast Guard approved PFD is used, so the composite material can be used both as a fabric and as flotation in a U.S. Coast Guard approved PFD.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: May 22, 2001
    Assignee: Extrasport, Inc.
    Inventor: Alexander Khanamirian
  • Patent number: 6235662
    Abstract: This invention provides air impermeable liquid-water resistant water vapor-permeable composites with enhanced water-vapor-permeable properties comprising: (a) a layer of a microporous polymer that is water-vapor permeable and which is liquid water-resistant in contact with (b) an air-impermeable, liquid water resistant, polymer layer that is permeable to water-vapor molecules, and (c) a third layer of a microporous, water vapor permeable, hydrophilic polymer present on the side of the air impermeable polymer layer opposite the microporous polymer (a).
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: May 22, 2001
    Inventor: Wolfgang Zehnder
  • Patent number: 6187696
    Abstract: 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: Grant
    Filed: December 3, 1997
    Date of Patent: February 13, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hyun Sung Lim, J. Michael McKenna, George Joseph Ostapchenko, Shailaja R. Vaidya, John Joseph Curro, Gary Dean Lavon
  • Patent number: 6117802
    Abstract: A nonwoven filter media or mat (10) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24), smaller than the cavity width, to the fiber (20) surface and each retaining within the internal cavity (22) an electrically conductive material. The electrically conductive material can be a large number of relatively small conductive solid particles (18). The small solid particles (18), which can be graphite are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive. The electrically conductive material can also be a selected liquid. In the case of a liquid, the wicking fibers (20) are filled with the selected conductive liquid through capillary action by which the individual wicking fibers (20) rapidly draw the selected electrically conductive liquid, with which they come into contact, through the internal cavities (22).
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: September 12, 2000
    Assignee: AlliedSignal Inc.
    Inventors: Ronald P. Rohrbach, Daniel E. Bause, Peter D. Unger, Lixin Xue, Russell A. Dondero, Gordon W. Jones
  • Patent number: 5987668
    Abstract: A washable fabric covered mattress pad involves the combination of a layer of resilient foam with a layer of fabric, both of which layers are machine washable and dryable. The fabric, either manmade or natural fiber material, is flame laminated to one side of the layer of foam. The non-covered side of the foam layer frictionally engages a mattress for non-slip self-positioning of the mattress pad without requiring straps or other specific holding mechanisms. A second or additional layers of foam of varying physical characteristics and/or thicknesses may be added through heat bonding thereof in a predetermined pattern to the non-covered side of the first layer of foam. Such arrangement results in a fabric covered, completely washable self-positioning mattress pad, such as having a preferred thickness generally in a range of from about one to about four inches.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 23, 1999
    Assignee: Span-America Medical Systems, Inc.
    Inventor: Robert E. Ackley
  • Patent number: 5955187
    Abstract: A self-regulating breathable microporous film layer transmits water vapor at normal use conditions, and reduces or eliminates the vapor transmission when the vapor in the environment becomes excessive. The film layer includes a voided polymer matrix and a plurality of fine water-swellable filler particles disposed within the voids. When there is an excess of vapor, the filler particles swell to block or partially block transmission of vapor through the voids and the film layer.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 21, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Louise McCormack, David Craige Strack, Jay Sheldon Shultz, William F. Cartwright, Carol A. Blaney
  • Patent number: 5849407
    Abstract: The present invention relates to combined insulation layers (ISS), preferably for use in shipbuilding, encompassing (i) an outer layer (AS) consisting of sheet metal, combined with (ii) a melamine layer (MSS), (iii) a sheet aluminum layer, (iv) a core layer of a hard foam material (HSS), coated on both sides with a phenolic resin prepreg (PNP).
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: December 15, 1998
    Assignee: Roehm GmbH Chemische Fabrik
    Inventor: Hermann Seibert
  • Patent number: 5736466
    Abstract: The invention relates to coating compositions for producing watertight, vapor-permeable and flame-retardant coatings, comprising a vinyl chloride copolymer or vinyl acetate/ethylene dispersion, flameproofing agents, foam stabilizer and optionally crosslinkers. The invention further relates to a process for producing watertight, vapor-permeable and flame-retardant coatings by mechanically foaming the coating composition to produce a stable foam, applying the foam to a woven, knitted or nonwoven support material on one or both of the sides and drying it at a temperature of from 60.degree. to 180.degree. C. and optionally, after drying, compressing the foam layer. The textile support materials coated with the coating composition are suitable for use in building protection and in the geotextile sector.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: April 7, 1998
    Assignee: Wacker-Chemie GmbH
    Inventors: Konrad Wierer, Franco Serafini