Abstract
Nonwoven Fabric for Automotive Interior Skin Material and Preparation Thereof
Document Number: 20110159239
Inventors: Ryu, Sung-Yong; Kim, Eun-Kyung; Jung, Yong-Gil; An, Moon-Ki
Assignee: Carl Freudenberg KG
A method for manufacturing a nonwoven fabric for automotive interior materials includes printing on at least one of a front surface and a back surface of the nonwoven fabric. Alkaline etching is performed on the front surface of the nonwoven fabric.
Automotive Inner Ceiling Material and Molding Method Thereof
Document Number: 20110084425
Inventor: Yamamoto, Hisao
Assignee: Unitika Fibers Inc.
The present invention provides an automotive inner ceiling material difficult to deform at a high temperature. Sheath-core type conjugate polyester fibers are prepared. The sheath is a heat fusible component. The core is a non heat fusible component. The sheath is made of copolyester which comprises acid units made of terephthalic acid and diol unites made of ethylene glycol and 1,4-butanediol. The conjugate fibers and the main fibers of polyester are mixed and provided in a card machine to be opened and accumulated to obtain a fibrous web. The fibrous web is heated to melt the sheaths, which are thereafter solidified to bind the fibers to obtain a nonwoven fabric. The nonwoven fabric is heat-treated at a temperature equal to or higher than the melting point of the sheath. Immediately thereafter, the nonwoven fabric is heat-molded between a pair of a mold plates. During the heat-molding process, the inner temperature is maintained at about 130°C for 60 seconds to obtain the ceiling material.
Puncture-resistant Fabric
Document Number: 20110159759
Inventors: MacDonald, John Gavin; Ross, Russell F.; Ryu, JinHo
The present invention is generally directed to a nonwoven fabric having a plurality of coated fibers, the coating including silane and dialdehyde, and, in certain embodiments, further including particles.
Method of Cleaning Using an Anti-microbial Nonwoven Wipe
Document Number: 20110159063
Inventors: Ellis, Dianne; West, Jimmy D.; Mayhorn, Jennifer; Carter, Nick
Assignee: Polymer Group, Inc.
The present invention is directed to a method of cleaning a hard surface with a nonwoven anti-microbial hard surface wipe, and more specifically to an anti-microbial hard surface wipe that more readily releases a disinfectant or anti-microbial agent, that includes coating a nonwoven wipe having a fibrous nonwoven substrate with a nonionic and cationic binder mixture to provide a first coated nonwoven wipe, coating the first coated nonwoven wipe with a cationic dual quaternary ammonia anti-microbial agent to provide a second coated nonwoven wipe, providing a water source, and introducing the second coated nonwoven wipe to the water source wherein the cationic dual quaternary ammonia anti-microbial agent is readily released upon the second coated nonwoven wipe being introduced to the water source.
Geo-synthetic Composite Insulation for Roofing
Document Number: 20110154775
Inventor: Jutras, Luc
Assignee: Produits Pour Toiture Fransyl Ltee
A geo-synthetic composite insulation panel for roofing applications is provided. The panel comprises a bottom layer made of an insulating material and a top layer made from a geotextile laminated on top of the bottom layer. The geotextile material provides an absorption zone for any adhesive used to glue waterproof membranes onto the insulation panel. This allows a better redistribution of loads on the insulation panel and increases the resistance of the material to punctures that the surface of the waterproof membrane may be subject to. The material, by its nature, will enhance the whole integrity of the roofing system.
Chemical Resistant Ionomers and Protective Coverings
Document Number: 20110143620
Inventor: Wu, Huisheng
This invention relates to novel chemical resistant, film forming, and moisture vapor permeable ionomers, including specialized polyurethane ionomers, polyurea ionomers, polyamide ionomers, polyester ionomers, or a mixture of the said ionomers, having high content of covalent-bonded ionic groups, total >100 mEq per 100 g of ionomers. These specialized ionomers have low noxious chemical crossover rate, high moisture vapor transmission rate, hydrolytically stable in humid environment, and capable of forming thin films. These novel chemical resistant ionomers can be cationic (selected from tertiary amines and their derivatives or quaternary ammoniums), anionic (selected from aliphatic carboxylic acids and their derivatives or aliphatic sulfonic acids and their derivatives), or zwitterions (selected from ionomers or a mixture of ionomers containing both cations and anions groups), or a mixture of any combination of the above three types, preferably in a form of coating solutions or dispersions suitable for coatings to form thin films or membranes, to protect the coated surface with acceptable barrier properties at any humidity with high moisture vapor permeability. One major application is in the field of protective fabric and protective clothing, gloves, shoes, hats, tents, sleeping bags, and protective skin cream against noxious liquids and gases.
Exterior Finishing System and Building Wall Containing a Corrosion-resistant Enhanced Thickness Fabric
Document Number: 20110143616
Inventors: Egan, William F.; Newton, Mark J.; Tucker, Mark W.
A corrosion-resistant lath is provided for use in exterior finishing systems, such as stucco systems and exterior insulation and finish systems (EIFS). The lath includes in a first embodiment an open, woven fabric comprising weft and warp yarns containing nonmetallic fibers, such as glass fibers. A portion of the weft yarns are undulated, resulting in an increased thickness for the fabric. The fabric is coated with a polymeric resin for substantially binding the weft yarns in the undulated condition. This invention also includes methods for making an exterior finish system and building wall including an exterior finish system using such a lath.
Textile Substrates Having Self-cleaning Properties
Document Number: 20110136400
Inventors: Hennige, Volker; Hying, Christian; Horpel, Gerhard; Oles, Markus; Nun, Edwin; Schleich, Bernhard
Assignee: Degussa AG
The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.
Sonochemical Coating of Textiles with Metal Oxide Nanoparticles for Antimicrobial Fabrics
Document Number: 20110097957
Inventors: Gedanken, Aharon; Nitzan, Yeshayahu; Perelshtein, Ilana; Perkas, Nina; Applerot, Guy
Assignee: Bar Ilan University
We disclose a system for preparing antimicrobial fabrics, coated with metal oxide nanoparticles by means of a novel sonochemical method. These antibacterial fabrics are widely used for production of outdoor clothes, underwear, bed linen, bandages, etc. The deposition of metal oxides known to possess antimicrobial activity, namely ZnO, MgO, and CuO, can significantly extend the applications of textile fabrics and prolong the period of their use. By means of the novel sonochemical method disclosed here, uniform deposition of metal oxide nanoparticles is achieved simply.
Fabric for Airbag
Document Number: 20110097956
Inventors: Kano, Kenichiro; Tsuruta, Takashi; Isoda, Hideo; Hagiwara, Hiroaki; Maruyama, Gaku; Hattori, Takahiro
Assignee: Toyo Boseki Kabushiki Kaisha
An object of the present invention is to provide a fabric for an airbag, which is of low cost, is excellent in accommodability, and has air permeability satisfying the human body initial constraining performance. The present invention provides a fabric for an airbag comprising a synthetic fiber woven fabric in which at least one side thereof is coated with a synthetic resin, characterized in that a range of 0.1 to 10 g/m2 of a synthetic resin is adhered to the synthetic fiber woven fabric having a cover factor represented by the equation 1 of less than 2000 and FR represented by the equation 2 of 55% or more, and air permeability of the fabric under a pressure difference of 100 kPa after adhesion is 0.01 to 1.00 L/cm2/min.
Woven Fabric for Airbag
Document Number: 20110097955
Inventors: Kano, Kenichiro; Tsuruta, Takashi; Kitamura, Mamoru; Isoda, Hideo; Hagiwara, Hiroaki; Maruyama, Gaku; Hattori, Takahiro
Assignee: Toyo Boseki Kabushiki Kaisha
An object of the present invention is to provide a woven fabric for an airbag which is of low cost, is excellent in accommodability, and has air permeability satisfying the human body initial constraining performance. The present invention provides a woven fabric for an airbag comprising a synthetic fiber woven fabric having a cover factor represented by the equation 1 of 2000 to 2500 in which at least one side thereof is coated with a synthetic resin, wherein air permeability of the woven fabric under a pressure difference of 100 kPa is 0.01 to 1.00 L/cm2/min, and a resin film is present at an upper part of a single yarn at a thickness of 2 µm or less on a central cross section of a weaving yarn part, while a resin film is present at an upper part of a single yarn at a thickness of 2 to 30 µm on a cross section at a border between weaving yarn parts.
Environmentally Friendly Polymeric Textile Coating
Document Number: 20110097500
Inventors: Weber, Robert F.; Zagryn, Michael
Assignee: Vantage Industries, LLC
A composition comprises a polyvinylchloride homopolymer, a biodegradable plasticizer and either a swelling agent or a carbohydrate coupled to the polyvinylchloride homopolymer or a combination thereof. The composition may further comprise a blowing agent. A coated fabric comprises a textile substrate and a biodegradable coating at least partially coating the textile substrate, wherein the biodegradable coating degrades at least 60% after 28 days under the ASTM D584 standard. A method of making a biodegradable coating comprises providing a polymer and blending a biodegradable plasticizer with the polymer to form a blend. A method of making a coated textile comprises providing a textile and a composition comprising a polymer, a biodegradable plasticizer, and at least one other component; applying the composition to the textile; and curing the composition, thereby making a coated textile.
Lightweight, Breathable, Waterproof, Stretchable, Dye-Sublimatable Fabric for Apparel
Document Number: 20110086208
Inventors: Nemphos, JR., Charles J.; Brendel, Robert
A stretchable, waterproof, breathable, colored fabric particularly suited for athletic and outdoor use comprising an outer layer composed of a woven or knitted, dye-sublimated colored polyester elastomeric yarn, an intermediately disposed stretchable, breathable, and waterproof membrane, and a woven or knitted polypropylene elastomeric layer all being laminated to form a unitary fabric.
Bacterial Poly(hydroxy Alkanoate) Polymer and Natural Fiber Composites
Document Number: 20110112257
Inventors: Billington, Sarah L.; Criddle, Craig S.; Frank, Curtis W.; Morse, Margaret C.; Christian, Sarah J.; Pieja, Allison J.
A biocomposite is produced from natural fiber fabrics embedded in a matrix of biosynthetic polyhydroxy-alkanoate (PHA) polymers. The PHA is synthesized using aerobic microbial biosynthesis using mixed bacterial cultures and a feedstock containing anaerobic degradation products such as methane and volatile fatty acids derived from microbial biodegradation of organic waste materials, which may include waste biocomposites. Monomers may be added to the synthesized PHA polymer to control mechanical properties of the resulting biocomposite. The natural fibers and/or PHA may be pretreated using various techniques to improve the bond between the fibers and the PHA resin matrix and water absorption resistance of the fibers. The composite may be a laminate of treated and untreated fabric layers, or differently treated layers, to achieve good in-service performance as well as rapid and/or optimal biogas production when taken out of service and put in an anaerobic environment to degrade.
Elastic Knit Fabrics with Cross Direction Stretch
Document Number: 20110111658
Inventors: Terraneo, Leopoldo; Piermattei, Alessandro
Assignee: Invista North America S.a.r.L.
Disclosed herein are stretchable elastic fabrics prepared by substantially uniformly impregnating a consolidated warp knit fabric with an elastomeric polymer by treatment with an elastomeric polymer solution. The resulting fabrics exhibit considerable elongation in the cross-direction with little or no machine-direction elongation. Such stretchable elastic fabrics are useful in medical and personal hygiene articles as well as in apparel applications.
Multi-layer Flame-retardant Fabric
Document Number: 20110081517
Inventors: Rock, Moshe; Hunter, Jane; Costello, David; Vainer, Gadalia
Assignee: MMI-IPCO, LLC
A composite velour fabric garment includes a laminate consisting of an outer woven shell layer, an inner thermal layer of knit construction, and an intermediate layer disposed between and laminated to each of the shell layer and the thermal layer. The outer woven shell layer contains spandex in at least a weft direction for stretch and recovery in a width direction. The knit construction of the inner thermal layer provides stretch in at least a width direction, in harmony with the shell layer, and the inner thermal layer has a raised surface facing inwardly, away from the shell layer. The intermediate layer has controlled air permeability, including zero air permeability.
Process and System for Making Noise Absorber Carpet and a Noise Absorber Carpet Made Therefrom
Document Number: 20110088830
Inventor: Yamada, Kohei
A process for making a noise absorber carpet including a fabric layer portion and a resinous backing layer portion including the substantially concurrent steps of continuously feeding a softened resinous backing material from a backing resin feeder onto a backing roll to form a continuous resinous backing sheet thereon, and continuously feeding a heated continuous fabric sheet via a fabric roll onto the backing sheet continuously formed on the backing roll, wherein the backing roll includes spike depressions and perforation pins on its surface, and wherein the fabric roll is located close to the backing roll to press the fabric sheet against the backing sheet as the sheets proceed between the rolls and mold spikes and perforations on the backing sheet, the backing roll being cooled to a temperature range between 10°C and 50°C with a cooling medium to harden said spikes and perforations and provide bonding between the fabric sheet and the backing sheet.
Reusable Smart Textile Complex for Medicinal Use, Washable Protective Medicinal Sheet, and Reusable Washable Dressing Manufactured Using Said Complex
Document Number: WO 2011058199
Inventor: Segundo, Jimenez Mariano
Assignee: Segundo, Jimenez Mariano
The invention relates to a reusable smart textile complex for medicinal use, intended for keeping patients with general incontinence dry, said textile complex including: a top outer layer, consisting of a honeycomb-type fabric with a double thermoplastic fiber layer, in which the exposed layer is a soft-touch fabric and the inner layer is an open-weave fabric, the two surfaces being linked by a zigzagging monofilament that maintains the separation between the layers; a set of inner layers, including: a first layer of a thermoplastic fiber open-weave fabric; a second layer consisting of a set of at least three fabrics, each made of a low-density nonwoven material (geotextile) comprising polypropylene fibers embedded in polyester thread, said fabrics being connected by a continuous filament thread; a third layer of at least one fabric made of a high-density nonwoven material (geotextile) of artificial cellulose fibers; and a bottom outer layer comprising a jersey made of waterproofed continuous thermoplastic fiber. The invention also relates to a protective medicinal sheet that can be washed and reused, as well as to a reusable washable dressing for manufacturing underwear for incontinent outpatients including same.
Knitted Geotextile, and Geotextile Tube Constructed Thereof
Document Number: GB 2476442
Inventors: Wynn, Jonathan R; Thompson, John
Assignee: Tensar Internat Corp.
A geotextile for sediment dewatering and containment has a pattern of oriented warp fibers positioned substantially parallel to each other, a pattern of oriented weft inserted fibers positioned substantially parallel to each other and substantially perpendicular to the oriented warp fibers, a nonwoven fleece, and oriented knitting fibers that interconnect the warp fibers, the weft fibers, and the nonwoven fleece as a knitted structure. Because of the knitted configuration, the load-bearing warp fibers and weft fibers remain substantially straight rather than interlaced as in a woven product. Consequently, the load-bearing warp fibers and weft fibers take up stress immediately, thereby giving higher performance at lower strain. Because the load-bearing warp fibers and weft fibers are substantially straight, they also retain their permeability under loading. Since more water flows through and from the geotextile, even when fully loaded, the dewatering process is both faster and safer to complete.
Semipermeable Membrane Supporting Body, Spiral-wound Semipermeable Membrane Element, and Method for Producing Semipermeable Membrane Supporting Body
Document Number: WO 2011049231
Inventors: Yoshida, Mitsuo; Takayama, Kazuhiko; Kimura, Kaoru; Takeuchi, Tsunekatsu; Fujiki, Hitoshi; Fukuda, Motomichi
Assignees: Mitsubishi Paper Mills Ltd; Yoshida, Mitsuo; Takayama, Kazuhiko; Kimura, Kaoru; Takeuchi, Tsunekatsu; Fujiki, Hitoshi; Fukuda, Motomichi
Disclosed are a semipermeable membrane supporting body, which is characterized by being composed of a nonwoven fabric that contains two or more kinds of main synthetic fibers having different fiber diameters and a synthetic binder fiber and has a ratio of smoothness of the surface that is coated with a semipermeable membrane relative to the surface that is not coated with the semipermeable membrane of from 5.0:1.0 to 1.1:1.0; a semipermeable membrane supporting body, which is characterized by being composed of a nonwoven fabric that contains a main synthetic fiber and a synthetic binder fiber and has average breaking lengths in the machine direction (MD) and in the crosswise direction (CD) at 5% elongation of less than 4.0 km and a dimensional change ratio in the crosswise direction (CD) due to heating of from −0.3% to +1.0%; a spiral-wound semipermeable membrane element using the semipermeable membrane supporting body; and a method for producing a semipermeable membrane supporting body.
Method for Purifying Drinking Water Using Nanofilter Coated with Nano-sized Ferromagnetic Ferrite, Method for Sterilizing Harmful Bacteria Contained in Drinking Water Using Said Nanofilter, and Method for Improving Drinking Water by Sterilizing
Document Number: WO 2011046061
Inventors: Yanagidaira, Sakan; Ishibashi, Shinichiro
Assignees: Yutaka Trends Inc; Yanagidaira, Sakan; Ishibashi, Shinichiro
Provided is a method for purifying drinking water, which has a simple and low-cost configuration in which the magnetic line of force generated from the surface of a nanofilter formed by coating a nano-sized ferromagnetic ferrite on a nonwoven fabric is used, and which reliably removes aggregates which were formed as harmful substances such as arsenic have aggregated on the iron in the drinking water. The method for purifying drinking water involves coating a filter material formed from a nonwoven fabric with a nanosized ferrite having a particle diameter of 5 to 30 nm in order to form a nanofilter coated with the nanosized ferromagnetic ferrite that emits a magnetic line of force from the surface of the filter material, soaking and leaving the nanofilter within drinking water for a predetermined period of time, and absorbing, with the nanofilter coated with the nanosized ferromagnetic ferrite and by means of the action of the magnetic line of force thereof, aggregate substances included in which are a magnetic arsenic and a compound thereof which have aggregated on the iron in the drinking water, thereby purifying the drinking water.
Coated Light Fabric, in Particular for a Flight Sail
Document Number: WO 2011042653
Inventor: Veran, Stephane
Assignees: Porcher Ind; Veran, Stephane
The invention relates to a light fabric consisting of continuous warp yarns and weft yarns, said fabric being coated on one or both of the surfaces thereof with a polyurethane, in which the bare fabric has a coverage rate TC of 1.8 to 4, preferably 2.6 to 3.2, the polyurethane is made of polyether and polycarbonate with a tensile stress at 100% elongation of less than or equal to 5 MPa, the impregnation rate is greater than or equal to 10 wt%, preferably 12 to 30 wt%, more preferably 15 to 25 wt%, and the fabric has a weight, including the coating, of 25 to 40 g/m2. The invention also relates to a method for manufacturing such a fabric. The invention can be used in particular for flight sails, in particular paragliders.
Highly Absorbent Composite Compositions, Absorbent Sheets Provided with the Compositions, and Process for Producing the Same
Document Number: EP 2305749
Inventors: Suzuki, Migaku; Matsumoto, Ryoichi; Mori, Shingo
Assignee: DSG Internat Ltd
Composite compositions containing, as the major components, fine hydratable microfibril fibers obtained from cellulose or derivatives thereof and a solid capable of swelling with water, wherein at least part of the surface of the solid is coated with the fine microfibril fibers, and a process for producing the same. The solid capable of swelling with water is exemplified by particulate polymer absorbents to which short fibers have been added as the third component. These composite absorbents may be located on supporting sheets made of, for example, a nonwoven fabric to give composite absorbent sheets applicable to various absorbent products including diapers for infants and adults.
Reusable Smart Textile Complex for Medicinal Use, Washable Protective Medicinal Sheet, and Reusable Washable Dressing Manufactured Using Said Complex
Document Number: WO 2011058199
Inventor: Segundo, Jimenez Mariano
Assignee: Segundo, Jimenez Mariano
The invention relates to a reusable smart textile complex for medicinal use, intended for keeping patients with general incontinence dry, said textile complex including: a top outer layer, consisting of a honeycomb-type fabric with a double thermoplastic fiber layer, in which the exposed layer is a soft-touch fabric and the inner layer is an open-weave fabric, the two surfaces being linked by a zigzagging monofilament that maintains the separation between the layers; a set of inner layers, including: a first layer of a thermoplastic fiber open-weave fabric; a second layer consisting of a set of at least three fabrics, each made of a low-density nonwoven material (geotextile) comprising polypropylene fibers embedded in polyester thread, said fabrics being connected by a continuous filament thread; a third layer of at least one fabric made of a high-density nonwoven material (geotextile) of artificial cellulose fibers; and a bottom outer layer comprising a jersey made of waterproofed continuous thermoplastic fiber. The invention also relates to a protective medicinal sheet that can be washed and reused, as well as to a reusable washable dressing for manufacturing underwear for incontinent outpatients including same.
Water Vapor Permeable Shrinkable Fabric
Document Number: EP 2315667
Inventors: Todt, Gregory L; Ozol, Seckin
Assignee: Transhield Technology AS
A shrinkable-stretchable polymeric laminated structure is made up of a shrink-stretch film on the outside and a nonwoven on the inside, with or without an adhesive. Preferably the film, nonwoven and adhesive are made from the same polymer family, including copolymers, which renders the laminate 100% recyclable. The film, nonwoven, and adhesive are modified to provide different responses to heat in addition to controlled water vapor permeability. The structure allows for water vapor permeability in one direction (inside-to-outside) and not in the opposite direction to allow wrapped article to dry or to keep wrapped articles dry and prevent corrosion related damage.
System for Making Watertight a Fabric Covering a Cavity Which, by Way of Microvalves Consisting of Fibers Produced During the Chemical Reaction of a Polymer that Comes into Contact with a Fluid Which Expands and Builds up Within the Cavity, Creates a High Barrier Effect
Document Number: EP 2337755
Inventor: Marchesini, Franco
Assignee: Marchesini, Franco
System for making watertight a fabric covering a cavity which, by way of microvalves consisting of fibers produced during the chemical reaction of a polymer that comes into contact with a fluid which expands and builds up within the cavity, creates a high barrier effect. During the chemical transformation that takes place when a fluid comes into contact with a polymer, very short, interwoven fibers are developed that form microcells. Said microcells form the seal section of a one-way microvalve which creates a containment structure which is soft, flexible and, at the same time, resistant to the specific internal pressure caused by the chemical transformation of the polymer with hydraulic expansion and a large increase in the build-up of the fluid in the cavity. The external surface of the cavity is subject to actual and/or imposed loads. The result obtained shows the significant volume ratio inside during the “passive” stage, that is, when the fluid builds up and the “active” stage when the chemical reaction in the cavity occurs. In addition, the “system” shows considerable operational efficiency and, more particularly, pertains to specific applications in the field of civil, environmental, and industrial protection and so on.
Composition for Impregnating Braid of Textile Ropes, Especially Dynamic Climbing Ropes, Process for Preparing and Applying Braid Impregnating Composition, Braid Coating and Rope with Such Coating
Document Number: CZ 302496
Inventors: Krysa, Josef; Novotna, Petra
Assignee: Vysoka Uekola Chemicko Technologicka V Praze
In the present invention, there I disclosed a rope impregnating composition intended for better wear resistance and water resistance thereof at lower production costs. The composition consisting of a sol containing polydimethylsiloxane, tetraisoproxytitanate, and tetraethoxysilane produces a coating onto the surface of a rope braid wherein the coating contains 10 to 45 vol% of polydimethylsiloxane, 10 to 45 vol% of titanium white and 10 to 45 vol% of silica. The composition of the present invention is prepared from a mixture of polydimethylsiloxane (PMDS), tetraisoproxytitanate (TiP) and tetraethoxysilane (TEOS) precursors and tetrahydrofuran (THF), ethanol (EtOH) and acetylacetone (AcAc) solvents. The mixture is homogenized by agitation for a period of 0.5 to 2 hours; subsequently H2O and HCL are added into the mixture; Then, (THF, EtOH and AcAc) solvents are again added followed by hydrolytic-condensation reactions at room temperature for a period of 0.5 to 2 hours to give a three-dimensional chemically bound organic-inorganic network. Subsequently the solution is again agitated for a period of 3 to 24 hours. The invention also discloses a method of applying the impregnation composition to a rope and a rope with a coating performed in such a manner.
Nonwoven Fabric for Medical Use and Process for the Preparation Thereof
Document Number: WO 2011054932
Inventors: Willems, Frank; Classen, Christoph; Kaempf, Stefanie
Assignees: Nonwotecc Medical GmbH; Willems, Frank; Classen, Christoph; Kaempf, Stefanie
Process for preparing a nonwoven fabric for medical use, comprising the following steps: performing a spraying process in which a spray jet is generated from a polycarbonate urethane plastic solution having a viscosity of from 800 to 1500 Pas using a spraying unit from which the polycarbonate urethane plastic solution exits; said spray jet includes at least one strand of a single microfiber that may have a diameter of from 1 to 15 µm, preferably a diameter of from 2 to 10 µm; said at least one strand of the single microfiber is sprayed onto a support, wherein the support is moved relative to the spraying unit, or the spraying unit is moved relative to the support; the spraying process is repeated several times to form polycarbonate urethane microfiber layers; whereby polycarbonate urethane microfibers formed from the individual spraying processes overlay each other and adhere to each other at the respective contact points; and a nonwoven fabric having a fibrillar microporous structure is formed; and optionally detached from the support after the last spraying process.
Multilayer Fabric Materials for Roofing Applications
Document Number: EP 2309046
Inventors: Stehlin, Thomas Dr; Groh, Werner Dr; Lehnert, Joerg
Assignee: Johns Manville
The invention relates to two or multilayer fabric laminate comprising (i) at least one polymer nonwoven layer and (ii) at least one fabric layer of nonpolymer fibers, characterized in that the at least two different layers (i) and (ii) have been laminated using at least one B-stage binder, a method for their production and their use. The laminates according to the instant invention are suitable as carrier for roofing felts, for bituminous roofing felts, sealing membranes or PVC floor coverings, in particular as bitumious roofing felts. The invention further relates to the method of manufacture these new multilayer laminates and the use thereof.
A Heat-insulating and Sound-absorbing Material for the Heat-insulating and Sound-absorbing Structure of a Car Body
Document Number: CA 2707220
Inventors: Ogawa, Masanori; Fujii, Makoto
Assignee: Nagoya Oilchemical
The subject of the present invention is to provide a heat-insulating structure for a car, the heat-insulating structure having a lightweight, and excellent heat-insulating and sound-absorbing performance. A heat-insulating and sound-absorbing material is provided in the invention. The heat-insulating and sound-absorbing material is characterized by an air-flow resistance controlling layer which lies between an air-permeable rigid layer and an air-permeable resilient layer, wherein the air-flow resistance controlling layer is a pulp fiber layer or a laminated layer of a pulp fiber layer and a nonwoven fabric having a mass per unit area in the range of between 10 and 50 g/m2, a thickness in the range of between 0.08 and 0.30 mm, and an air-flow resistance in the range of between 0.07 and 3.00 kPa·s/m.
Carbon Fiber Reinforced Composite Materials
Document Number: WO 2011064994
Inventors: Miyauchi, Masahiko; Iwahara, Takahisa; Kusakabe, Masato
Assignees: Kaneka Corp; Miyauchi, Masahiko; Iwahara, Takahisa; Kusakabe, Masato
Provided are carbon fiber reinforced composite materials which each comprise both a reinforcing fiber that takes the form of a unidirectionally arranged material (UD) composed of continuous carbon fibers or a woven or knitted fabric composed thereof and a matrix resin that consists of a modified polyolefin resin and which exhibit improved adhesion and mechanical strengths, said carbon fiber reinforced composite materials being characterized in that the matrix resin forms a multiphase structure consisting of a sea-island structure wherein the island portions (disperse phase) have a mean diameter of 0.5 µm or less. One embodiment relates to a composite material wherein the matrix resin is a modified polyolefin resin obtained by grafting a polyolefin resin with a monomer that contains an ethylenic double bond and a polar group in one molecule and the reinforcing fiber is composed of continuous carbon fibers. Another embodiment relates to a fiber-reinforced composite material which is obtained by laminating a modified polyolefin resin and carbon fibers in a mold having a prescribed shape, impregnating the carbon fibers with a melt of the modified polyolefin resin under elevated pressure, and then curing the resulting laminate by cooling.
Multi-layer Heat-insulating Material
Document Number: RU 2415622
Inventors: Gorberg, Boris L Vovich; Belova, Irina Jur Evna; Veselov, Valerij Viktorovich; Ivanov, Andrej Anatol Evich; Mamontov, Oleg Vladimirovich; Stegnin, Valerij Anatol Evich
Assignees: Gorberg, Boris L Vovich; Belova, Irina Jur Evna; Veselov, Valerij Viktorovich; Ivanov, Andrej Anatol Evich; Mamontov, Oleg Vladimirovich; Stegnin, Valerij Anatol Evich
Multi-layer heat-insulating material contains the main layer made of textile fabric and structural elements formed into an additional layer arranged on the front side of the main layer in rows continuously or in a broken manner, or as adjacent to each other or arranged as overlapping. At the same time structural elements are made as hollow from increasable textile fabric and have cylinder-like, ellipse-like or drop-like shape, and inner side of structural elements has metallized coating. The multi-layer heat-insulating material may be used for special-purpose clothes, mobile shelters (canvases, tents). The invention provides for high extent of camouflaging protection of biological object during night time due to provision of high heat insulation properties that weaken heat radiation, and also provision of camouflaging effect during daytime.