Coating Or Impregnation Specified As Porous Or Permeable To A Specific Substance (e.g., Water Vapor, Air, Etc.) Patents (Class 442/76)
  • Publication number: 20020132547
    Abstract: A nonwoven fabric/film laminate material is particularly suited for use as a “housewrap”, or in like building construction applications. The laminate material comprises a spunbond polypropylene nonwoven fabric, and a breathable, polymeric film which is extrusion-coated onto the nonwoven fabric layer. Both the fabric layer and extrusion-coating can be formed in a cost-effective manner on conventionally available processing equipment. By appropriate selection of the nonwoven fabric layer and film properties, the present laminate material acts as an effective barrier to liquid water and air infiltration, while providing desirable permeability to water vapor.
    Type: Application
    Filed: January 12, 2001
    Publication date: September 19, 2002
    Inventors: Pierre D. Grondin, Paul Anthony Kamnikar, Valeria Griep Erdos, Richard James Witmeyer, Marlene Storzer, Charles Pearce
  • Patent number: 6451715
    Abstract: Coated inflatable fabrics, more particularly airbags to which very low add-on amounts of coating have been applied, are provided which exhibit extremely low air permeabilities. The inventive fabrics are primarily for use in automotive restraint cushions which require low permeability characteristics (such as side curtain airbags). Traditionally, heavy, and thus expensive, coatings of compounds such as neoprene, silicones and the like, have been utilized to provide such required low permeability. The inventive fabric utilizes an inexpensive, very thin coating to provide such necessary low permeability levels. Thus, the inventive coated airbag possesses a coating of at most 3.0 ounces per square yard, most preferably about 0.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: September 17, 2002
    Assignee: Milliken & Company
    Inventors: Shulong Li, John A. Sollars, Jr.
  • Patent number: 6444595
    Abstract: A cover (200) for inhibiting corrosion of a metallic object over which the cover is placed. The cover has an inner surface (104) defined by a liquid-permeable layer (202) and an outer surface (102) defined by a liquid-impermeable layer (204). A moisture-absorbing layer (206) is sandwiched between the liquid-permeable layer and the liquid-impermeable layer. The liquid-permeable layer allows vapor and liquid moisture beneath the cover to be absorbed into the moisture-absorbing layer to reduce the amount of moisture beneath the cover. The liquid-impermeable layer repels environmental liquid moisture, such as rain, sea spray, dew and the like and prevents such moisture from penetrating the cover. A radar-influencing layer (308) and vapor corrosion inhibitors (214) may be included in the cover. A method of protecting an object is also disclosed. The method includes covering a metallic object with cover (200).
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: September 3, 2002
    Assignee: Creare Inc.
    Inventors: Nabil A. Elkouh, Bruce R. Pilvelait
  • Patent number: 6444594
    Abstract: This invention relates to novel airbag coating compositions and systems comprising heat-expandable microspheres that provide effective insulation for the target airbag fabric during exothermic inflation. The inventive airbag fabrics are either pre-calendered prior to application of this composition or are coated through a floating knife method with such heat-expandable microsphere-containing compositions. The coated airbag fabrics and cushions may then be heated to expand the microsphere constituents of the coating compositions both within the interstices between the individual yarns of the fabric and over the raised yarns of the fabric. Such a coating system thus provides an extremely high degree of protection from heat exposure that permits structural integrity of the target airbag cushion airbag and provides protection from such high inflation temperatures to a vehicle passenger cushion during such a highly exothermic inflation event.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: September 3, 2002
    Assignee: Milliken & Company
    Inventors: Andrew D. Child, Derek S. Kozlowski
  • Publication number: 20020106957
    Abstract: Airbag fabric, method for its manufacture and its use An airbag fabric is proposed with which, in order to increase the static friction of the yarns at the intersections of the warp and the weft, crystalline and/or amorphous particles are incorporated in at least some of the openings remaining between their intersections. The airbag fabric can be manufactured on a padding machine in that a strip of the raw fabric is passed through an aqueous dispersion of colloidal silicic acid and subsequently dried. The fabric is used for the manufacture of airbags.
    Type: Application
    Filed: January 23, 2002
    Publication date: August 8, 2002
    Applicant: TRW Occupant Restraint Systems GmbH & Co. KG
    Inventor: Philipp Ritter
  • Patent number: 6429155
    Abstract: Coated inflatable fabrics, more particularly airbags to which very low add-on amounts of coating have been applied, are provided which exhibit extremely low air permeability. The inventive inflatable fabrics are primarily for use in automotive restraint cushions that require low permeability characteristics (such as side curtain airbags). Traditionally, heavy, and thus expensive, coatings of compounds such as neoprene, silicones and the like, have been utilized to provide such required low permeability. The inventive fabric utilizes an inexpensive, very thin coating to provide such necessarily low permeability levels. Thus, the inventive coated inflatable airbag comprises a film laminated on at least a portion of the target fabric surface wherein the film possesses a tensile strength of at least 2,000 and an elongation at break of at least 180%.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: August 6, 2002
    Assignee: Milliken & Company
    Inventors: Shulong Li, John A. Sollars, Jr.
  • Patent number: 6429156
    Abstract: There is disclosed a substance releasing material including a substrate having at least one beneficial substance adhered thereto by at least one layer of bonding agent. The beneficial substance or substances is releasable by the action of a release agent. Examples of the beneficial substance include an anti-rust agent, a foodstuff preservative, a sterilising agent, and a foodstuff flavouring.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: August 6, 2002
    Inventors: Keith Charles Tipler, Ivan Robert Tatt
  • Publication number: 20020098756
    Abstract: Provided is a leatherlike sheet material which has a base material (I) comprising a nonwoven fabric (A) constituted with ultrafine-fiber bundles having single fineness of no greater than 0.2 de, a high molecular elastomer (B) and a high molecular elastomer (C), and in which a grained surface layer (II) comprising a high molecular elastomer (C)-constituted surface porous layer (D) and a surface finishing layer (E) is formed on at least one side of the surfaces of the base material (I), wherein the leatherlike sheet material is characterized in that the apparent density of the base material (I), the weight ratio of the nonwoven fabric (A) to the high molecular weight elastomer (B) and the high molecular elastomer (C) in the base material (I), the thickness of the grained surface layer (II), and the ratios of 20%-elongation load (&sgr;20)/5%-elongation load (&sgr;5) in the longitudinal direction and the transverse direction of the leatherlike sheet material satisfy their own specific ranges.
    Type: Application
    Filed: June 24, 1999
    Publication date: July 25, 2002
    Inventors: KUNIHIKO SASAKI, YOSHIYUKI SUZUKI
  • Publication number: 20020098763
    Abstract: A polishing and cleaning sheet for hard surfaces which comprises a sheet substrate impregnated with a polishing cleaner, wherein the substrate is a laminate comprising (A) a fiber aggregate comprising 50 to 100% by weight of ultrafine fibers having a fineness of 0.01 to 1.2 dtex and (B) a flexible material comprising 50 to 100% by weight of hydrophobic fibers and has a maximum absorption capacity of 4 to 15 times its own weight, the substrate is impregnated with 1 to 5 parts by weight, per part by weight of the substrate, of the polishing cleaner, provided that the amount of the polishing cleaner infiltrated in the substrate is not exceed 80% of the maximum absorption capacity, and the polishing cleaner comprises 0.01 to 10% by weight of a water-repellent compound and 50 to 99% by weight of water.
    Type: Application
    Filed: November 16, 2001
    Publication date: July 25, 2002
    Inventors: Masashi Yoshikawa, Masashi Shioji, Kenji Ishikawa, Yutaka Saito, Michio Yokosuka
  • Publication number: 20020098755
    Abstract: A coated textile fabric is disclosed for manufacturing an air holding device for a vehicle restraint system, including a base woven, knitted or non-woven base textile fabric having a first surface and a second surface. The base textile fabric is completely or partially coated with an adhesive polyurethane to form a first coating layer, the first coating layer being coated with a second composite coating layer. The second composite coating layer is preferably a polyurethane, a polysiloxane, and an epoxy resin which acts as a filler and adhesion promoter. A third coating layer is formed of a polymeric polyurethane material coated on the second composite layer. A method of producing the coated textile fabric is also disclosed. A heat sealing die for forming sealing beads to seal such coated textile fabrics to form air holding devices is also disclosed.
    Type: Application
    Filed: January 2, 2002
    Publication date: July 25, 2002
    Inventor: Manuel J. Veiga
  • Patent number: 6416854
    Abstract: A uniformly applied monolithic roofing surface membrane at appropriate thickness and pitch is field applied upon a surface. The surface membrane may be field applied from a spray applicator foam dispenser moving between two parallel tracks. The uniform application of foam at each pass is assured, by accelerating the speed of the foam dispenser at the end of each pass, by providing continuous movement of the spray applicator upon the tracks. The monolithic roofing surface monolithic thus formed includes a spontaneously curable polymer, such as low rise polyurethane adhesive or polyurethane foam, having a mesh such as of fabric or fiberglass therein, with a silicone coating thereon.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: July 9, 2002
    Inventor: John P. Hunter, Jr.
  • Publication number: 20020081922
    Abstract: A coating for a structure with an integrated airbag has a coating element which has a portion operative for covering an airbag box and being perforated in a region of an edge of the portion for covering the airbag box.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 27, 2002
    Inventor: Tanju Yaldir
  • Patent number: 6410465
    Abstract: A moisture vapor permeable, substantially liquid impermeable composite sheet material includes a powder-bonded nonwoven web adhered to a moisture vapor permeable thermoplastic film. The nonwoven web includes a first layer comprised primarily of fibers that are compatible with an adhesive used to bond the web, and a second layer comprised of a blend of fibers, some of which are compatible with, and some of which are incompatible with the bonding adhesive and the thermoplastic film. A method for making the composite sheet material and an item of apparel made from the sheet material are also provided.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: June 25, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hyun Sung Lim, George Joseph Ostapchenko
  • Publication number: 20020071944
    Abstract: This invention provides breathable composite materials with good liquid barrier properties comprising a laminate of a nonwoven web layer and a breathable film layer wherein breathability of the composite is provided by a plurality of point-like deformations of the film layer. In one embodiment, the composites also have a soft, cloth-like texture at at least one surface thereof. Also provided is a process for making such composites comprising applying a molten film-forming resin composition capable of developing breathability on deformation to a nonwoven web, cooling the molten composition to form a coated web having a web layer bonded to a film layer, and subjecting the coated web to heat and pressure at a plurality of points on a surface thereof wherein the heat, pressure and density of, and proportion of the composite surface occupied by, the deformations are effective to impart breathability to the film without loss of liquid barrier properties.
    Type: Application
    Filed: April 20, 1999
    Publication date: June 13, 2002
    Inventors: HUGH C. GARDNER, JEFFREY H. MUMM, KAM C. LUI
  • Publication number: 20020061691
    Abstract: This invention relates to novel airbag coating compositions and systems comprising pre-expanded or non-expandable microspheres that provide effective insulation for the target airbag fabric during exothermic inflation. The inventive airbag fabrics are either pre-calendered prior to application of this composition or are coated through a gap (floating) knife method with such heat-expandable microsphere-containing compositions. The coated airbag fabrics and cushions may then be heated to evaporate the solvent within the coating composition. The resultant fabric thus exhibits the presence of the microsphere constituents of the coating compositions both within the interstices between the individual yarns of the fabric and over the raised yarns of the fabric.
    Type: Application
    Filed: November 10, 1999
    Publication date: May 23, 2002
    Inventors: ANDREW D. CHILD, DEREK S. KOZLOWSKI
  • Publication number: 20020055311
    Abstract: This invention relates to novel airbag coating compositions and systems comprising heat-expandable microspheres that provide effective insulation for the target airbag fabric during exothermic inflation. The inventive airbag fabrics are either pre-calendered prior to application of this composition or are coated through a floating knife method with such heat-expandable microsphere-containing compositions. The coated airbag fabrics and cushions may then be heated to expand the microsphere constituents of the coating compositions both within the interstices between the individual yarns of the fabric and over the raised yarns of the fabric. Such a coating system thus provides an extremely high degree of protection from heat exposure that permits structural integrity of the target airbag cushion airbag and provides protection from such high inflation temperatures to a vehicle passenger cushion during such a highly exothermic inflation event.
    Type: Application
    Filed: November 10, 1999
    Publication date: May 9, 2002
    Inventors: ANDREW D. CHILD, DEREK S. KOZLOWSKI
  • Publication number: 20020052161
    Abstract: On a support, a porous resin layer which is opaque in a water-unabsorbed state and capable of turning transparent in a water-absorbed state is formed, and also a water-repellent resin layer is so provided as to exist in the porous resin layer at its some area or areas in a co-existent state, to make up a water-metachromatic laminate. A novel toy element can be provided in which latent images standing invisible in a normal condition are rendered visible by means of water as a medium so as to be visually distinguished.
    Type: Application
    Filed: September 25, 2001
    Publication date: May 2, 2002
    Inventors: Akio Nakashima, Hisayoshi Kato
  • Publication number: 20020049018
    Abstract: A moisture-permeable waterproof fabric comprising a textile fabric and a moisture-permeable resin film containing a non-porous urethane resin layer formed on at least one side thereof, wherein the moisture-permeable waterproof fabric has a moisture permeability of 15,000 g/m2·24 hr or greater according to the potassium acetate method, a moisture condensation of no more than 5 g/m2·hr and a water pressure resistance of 20,000 mmH2O or greater, and a release-sheet attached moisture-permeable resin film comprising a release sheet and a moisture-permeable resin film formed thereon containing a non-porous urethane resin layer.
    Type: Application
    Filed: November 1, 2001
    Publication date: April 25, 2002
    Inventors: Yasunao Shimano, Masashi Mukai, Kenji Nitta
  • Publication number: 20020042237
    Abstract: Disclosed is a liquid absorbing body and a method of manufacturing the liquid absorbing body which has an excellent swelling property and absorbed liquid holding ability in a vertical state and which is suitable to a mass production at a low manufacturing cost. This liquid absorbing body includes natural cellulose fibers and/or synthetic fibers, a thermally fusible material and a thickening material. This liquid absorbing body is formed by defibering natural cellulose fibers and/or synthetic fibers, a thermally fusible material and a thickening material in air and mixing them to form a mat, heating thus formed mat at a temperature higher than a fusible point of the thermally fusible material and then fixing the thickening material in a web by compressing the mat with a press roller.
    Type: Application
    Filed: July 16, 2001
    Publication date: April 11, 2002
    Inventors: Tadanori Sameshima, Teruo Miura, Kiyotaka Miyata, Eiji Yagura
  • Publication number: 20020042235
    Abstract: An air bag cover having a surface sheet including a TPE layer (decorative layer) on the surface side is provided. A surface sheet with the breaking elongation adjusted by containing a filler in a TPE material for forming the TPE layer, is used. Thereby, the breaking rapidity at a tear line groove formation portion is improved.
    Type: Application
    Filed: September 27, 2001
    Publication date: April 11, 2002
    Inventors: Shigehiro Ueno, Akiyoshi Nagano, Akio Nakano, Kenichi Furuta, Hiroshi Suyama, Yukihiko Horiba, Yoshiaki Shichida, Toshikatsu Togawa
  • Patent number: 6368991
    Abstract: This invention relates to a low fiber, plyable facer suitable for use in the construction industry, particularly for insulation board manufacture, comprising a dry preformed fiber mat containing a binder for the fibers, preferably a preformed glass mat, coated with a prefoamed composition which contains a thixotropic polymer latex, a foam sustaining amount of a surfactant and a flame retarding and/or strengthening amount of a mineral filler and also to the use and process for the preparation of the above as well as to a siding underlayment or insulation board having a foamed, thermosetting resin core which is surfaced with said facer as a product for commercial use.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: April 9, 2002
    Assignee: Building Materials Investment Corporation
    Inventors: Charles J. Horner, Jr., Frank S. Franzyshen, Murray S. Sherman
  • Patent number: 6365533
    Abstract: This invention relates to a low fiber, plyable facer suitable for use in the construction industry, particularly for insulation board manufacture, comprising a dry preformed fiber mat containing a binder for the fibers, preferably a preformed glass mat, coated with a prefoamed composition which contains a thixotropic polymer latex, a foam sustaining amount of a surfactant and a flame retarding and/or strengthening amount of a mineral filler and also to the use and process for the preparation of the above as well as to a siding underlayment or insulation board having a foamed, thermosetting resin core which is surfaced with said facer as a product for commercial use.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: April 2, 2002
    Assignee: Building Materials Investment Corportion
    Inventors: Charles J. Horner, Jr., Frank S. Franzyshen, Murray S. Sherman
  • Publication number: 20020028621
    Abstract: A coated substrate comprises a strippable intermediate coating atop the substrate and a strip agent-permeable waterborne overcoat adhered to the intermediate coating, wherein the dried overcoat is less strippable and more wear-resistant than the dried intermediate coating. When the overcoat eventually becomes worn and must be renewed, a strip agent (e.g., chemical strip agent) can be applied to the overcoat. The strip agent penetrates the overcoat and attacks the intermediate coating, thereby enabling removal of the intermediate coating and overcoat without aggressive removal techniques such as sanding.
    Type: Application
    Filed: April 20, 2001
    Publication date: March 7, 2002
    Inventors: Mark D. Levitt, Bryan Michael Anderson, Keith Edward Olson, Kim R. Smith
  • Patent number: 6350709
    Abstract: A coated textile fabric is disclosed for manufacturing an air holding device for a vehicle restraint system, including a base woven, knitted or non-woven base textile fabric having a first surface and a second surface. The base textile fabric is completely or partially coated with an adhesive polyurethane to form a first coating layer, the first coating layer being coated with a second composite coating layer. The second composite coating layer is preferably a polyurethane, a polysiloxane, and an epoxy resin which acts as a filler and adhesion promoter. A third coating layer is formed of a polymeric polyurethane material coated on the second composite layer. A method of producing the coated textile fabric is also disclosed. A heat sealing die for forming sealing beads to seal such coated textile fabrics to form air holding devices is also disclosed.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: February 26, 2002
    Assignee: Bradford Industries, Inc.
    Inventor: Manuel J. Veiga
  • Publication number: 20020022420
    Abstract: The invention is directed to applying a plurality of polyurethane coating layers to a knit, woven or non-woven fabric substrate, following by sealing of two of such coated substrates together by radio frequency sealing, hot air sealing, or ultrasonic sealing to form an improved air-holding restraint system, such as an air curtain or air bag with superior air-holding characteristics.
    Type: Application
    Filed: September 19, 2001
    Publication date: February 21, 2002
    Inventors: Manuel J. Veiga, Richard J. Satin, Philip R. Rampolla, Leo Lizotte, Ryan Jennings
  • Patent number: 6348423
    Abstract: A novel wound dressing includes a fibrous absorbent layer for absorbing wound exudate, an odor layer for absorbing odor and a barrier layer interposed the fibrous absorbent and barrier layers. Preferably the barrier layer is vacuum perforated and the fibrous absorbent layer is of highly absorbent fibres capable of absorbing 25 grams of exudate per gram of dressing.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: February 19, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bryan Griffiths, Elizabeth Jacques, Stephen Bishop
  • Patent number: 6348422
    Abstract: A moisture-permeable waterproof fabric comprising a textile fabric and a moisture-permeable resin film containing a non-porous urethane resin layer formed on at least one side thereof, wherein the moisture-permeable waterproof fabric has a moisture permeability of 15,000 g/m2·24 hr or greater according to the potassium acetate method, a moisture condensation of no more than 5 g/m2·hr and a water pressure resistance of 20,000 mmH2O or greater, and a release-sheet attached moisture-permeable resin film comprising a release sheet and a moisture-permeable resin film formed thereon containing a non-porous urethane resin layer.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: February 19, 2002
    Assignee: Komatsu Seiren Co., Ltd.
    Inventors: Yasunao Shimano, Masashi Mukai, Kenji Nitta
  • Publication number: 20010049243
    Abstract: A lightweight coated fabric substrate of high tenacity yams, such as nylon, polyester, polypropylene or the like is extrusion coated with a material resulting in a substantially air impermeable fabric with a tear strength-to-weight ratio of at least 8 pounds/oz. per sq. yd. at weights of between 2 and 7.5 oz. per sq. yd.
    Type: Application
    Filed: February 12, 2001
    Publication date: December 6, 2001
    Inventors: Earl T. Crouch, Michael D. Bertolucci, Keith N. Gray
  • Patent number: 6326323
    Abstract: A fabric for ink-jet recording comprises a fibrous substrate and an ink absorbing layer formed thereon, wherein the ink absorbing layer contains fine fibrous cellulose with a diameter of 0.5 &mgr;m or less, a water-soluble nonionic polymer, porous silica, and a cationic polymer. The fabric also has a resin layer which includes a flame retardant formed on a side opposite to the ink absorbing layer. The ink absorbing layer has improved ink absorption and drying properties, while the color developing property, sharpness and moisture resistance of the images are improved.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: December 4, 2001
    Assignee: Komatsu Seiren Co., Ltd.
    Inventors: Yasunao Shimano, Takeshi Minamiyama
  • Patent number: 6323144
    Abstract: A convertible fabric having improved acoustical and heat transfer properties comprising an elastomeric polymer coating on a double woven fabric. The double woven having the standard sateen weave and the backing fabric of a plain weave interconnected to the sateen weave fabric with one surface of the plain weave coated with an elastomeric polymer to provide air spaces between the fabrics of the double woven fabric.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: November 27, 2001
    Assignee: Milliken & Company
    Inventor: Charles E. Dalbec
  • Patent number: 6307207
    Abstract: An emergency egress system for a locus that is exposed to light in non-emergency use and susceptible to interruption or termination of light in emergency circumstances. The emergency egress system comprises a fibrous web deployed in the locus, wherein the fibrous web has photoluminescent fiber incorporated therein in sufficient amount and distribution to illuminate the web or predetermined portions thereof during the interruption or termination of light in emergency circumstances, and subsequent to light exposure thereof.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: October 23, 2001
    Assignee: Astronics Corporation
    Inventor: Robert M. Burbank
  • Patent number: 6300257
    Abstract: A nonwoven layer of sheeting is extrusion-coated on one side with ethylene polymers, propylene polymers, modified propylene polymers and fillers. The nonwoven layer of sheeting is formed from polyethylene, polypropylene, polyethylene terephthalate and/or polyamide. The coated nonwoven sheeting is subjected to longitudinal and transverse stretching and white crackling cloudiness develops. The extrusion-coated nonwoven sheeting has a textile texture and is suitable for use in hygiene products, in medical products, in the textile and clothing industry, in the automobile industry and in construction products.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: October 9, 2001
    Assignee: Borealis AG
    Inventors: Manfred Kirchberger, Anton Wolfsberger, Christian Paulik
  • Patent number: 6299965
    Abstract: The invention relates to inflatable fabrics which comprise two separated and distinct fabric layers in discrete areas of such fabrics as well as C-shaped seam-producing materials to which such fabric layers are attached. The resultant inflatable fabric composite this includes inflatable areas separated, at least partially, by seamed barrier areas. This configuration will form “pillowed” structures within the target fabric upon inflation. Such seam-producing materials are incorporated within the two-layer structure as C-shaped peel seams in relation with the individual fabric layers. Upon inflation, the seams then act as shear seams which greatly increases the overall strength of the two-layer inflatable fabric. These shear seams thus provide a relatively effective manner of reducing air permeability within the entire fabric article. Such a fabric may be utilized in numerous and various applications wherein fabric inflation is desired or necessary.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: October 9, 2001
    Assignee: Milliken & Company
    Inventor: Ramesh Keshavaraj
  • Patent number: 6294487
    Abstract: The present invention relates to an airbag fabric which is woven in such a manner as to possess a cover factor of less than about 1900 but which simultaneously, through the presence of a film (laminate) or coating, possesses an extremely low air permeability. The utilization of such a loosely constructed fabric within airbag cushions has heretofore not been possible, even with the application of standard airbag coatings (such as silicones) over the fabric surface since such coatings with not easily remain in contact over the loosely constructed fabric surface (i.e., the coating would leak through the fabric). The coupling of a low cover factor fabric with a laminate film (or with a coating wherein the cover factor is at least 1600), however, solves such a problem and permits the utilization of inexpensively produced woven fabrics within airbag applications.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: September 25, 2001
    Assignee: Milliken & Company
    Inventor: Ramesh Keshavaraj
  • Patent number: 6291371
    Abstract: Described is a fragrance control release system which is an emulsifier-free, single phase, nonporous, continuous, permeable polymeric film having a substantially uniform thickness of from about 1 up to about 150 microns, having entrapped and dissolved therein molecules of at least one fragrance substance capable of evolving from said film into the environment proximate said film by means of molecular diffusion at a permeation rate of from about 1×10−7 up to about 0.1 mg-mm/cm2-min in a sustained and controlled release manner. Also described is a process for using the aforementioned system for imparting a fragrance into the environment above the unobstructed outer surface of the aforementioned polymer film which is coated on the surface of a solid or semi-solid support, e.g., a woven or non-woven fabric substrate; or a solid surface or human epidermis.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: September 18, 2001
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Adi Shefer, Shmuel David Shefer, Michael John Robert White
  • Publication number: 20010021616
    Abstract: A method of preparing a stain resistant and water repellant textile fabric comprising:
    Type: Application
    Filed: May 4, 2001
    Publication date: September 13, 2001
    Inventors: Kyle Bullock, Craig A. Rubin, Randy B. Rubin
  • Patent number: 6284351
    Abstract: This invention describes two products both with a plain, fine textured, nonperforated surface visual consisting of a fiberboard substrate with or without a laminated porous nonwoven scrim and then a finished painted surface. The finish painted surface decorates or finishes the board, but most important, must remain acoustically transparent to retain the sound absorption properties of the fiberboard prior to painting. The fiberboard substrate is made to be porous or modified with hole perforations to cause it to be a good sound absorber. If the fiberboard substrate is sufficiently porous without hole perforations, then the sprayable, high solids, porous paint can be directly applied. If hole perforations are used to improve the sound absorption properties of the board substrate, then a porous, nonwoven scrim is attached and painted using the same high solids porous paint.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: September 4, 2001
    Assignee: Armstrong World Industries, Inc.
    Inventor: Darryl L. Sensenig
  • Patent number: 6277769
    Abstract: A high temperature and energy capacity friction material for wet brake and clutch applications comprising a resin impregnated carbon fabric. Preferably, the fabric is a woven cloth and the resin is a thermoset such as phenolic resin. The invention involves the controlled impregnation of the fabric so as to leave the fabric with a high compressive strength, effectively impervious to internal oil flow, but with macroscopic voids between the tows of yarn to afford local reservoirs of oil at the working surface and flow of oil across the working surface.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: August 21, 2001
    Assignee: S.K.. Wellman Corp.
    Inventors: Richard E. Dowell, Thomas F. Csarny
  • Publication number: 20010009829
    Abstract: Coated inflatable fabrics, more particularly airbags to which very low add-on amounts of coating have been applied, are provided which exhibit extremely low air permeability. The inventive inflatable fabrics are primarily for use in automotive restraint cushions that require low permeability characteristics (such as side curtain airbags). Traditionally, heavy, and thus expensive, coatings of compounds such as neoprene, silicones and the like, have been utilized to provide such required low permeability. The inventive fabric utilizes an inexpensive, very thin coating to provide such necessarily low permeability levels. Thus, the inventive coated inflatable airbag comprises a film laminated on at least a portion of the target fabric surface wherein the film possesses a tensile strength of at least 2,000 and an elongation at break of at least 180%.
    Type: Application
    Filed: January 22, 2001
    Publication date: July 26, 2001
    Inventors: John A. Sollars, Shulong Li
  • Publication number: 20010008672
    Abstract: Novel flocked articles are disclosed which include as at least one component of the article a water resistant, wind resistant, breathable portion. The water resistant, wind resistant, breathable portion may be a membrane, layered structure or composite which is either porous or nonporous, which can also be air permeable or air impermeable, hydrophilic, hydrophobic and/or oleophobic. In a particularly preferred embodiment of the present invention, at least a portion of the article comprises an ePTFE material. The flocked article may have any desired shape, such as a flexible sheet, a fabric, a fiber, a flexible or rigid three-dimensional shape, a tube, or the like. Moreover the configuration of the article may be either simple or complex, ranging from a single sheet to a layered structure to a multi-layered, multi-compositional form.
    Type: Application
    Filed: January 29, 1998
    Publication date: July 19, 2001
    Inventors: JEAN NORVELL, PHILIP L. WAGNER
  • Patent number: 6245693
    Abstract: The laminated absorbent structure has absorbent gelling material (26) and a first odour absorber (24) each held between separate containing layers (2,4,6). The absorbent gelling material also separates a fluid-receiving surface from the first odour absorber. A second absorber may be a coating sprayed onto the layer (2) so that it is between the gelling material and the first surface. The first absorber is active when not wetted and the second odour absorber is active when wetted. The containing layers are fibrous layers and absorbent gelling material and the odour absorbers are in particle or powder form.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: June 12, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Ivano Gagliardi, Mario Guarracino, Carlo Toro
  • Patent number: 6239046
    Abstract: The invention is directed to coating a knit, woven, or non-woven textile substrate with adhesive polyurethane layer and then with an elastomeric polysiloxane layer and to then form an air curtain or air bag therefrom with superior air-holding and superior heat resistance.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: May 29, 2001
    Assignee: Bradford Industries, Inc.
    Inventors: Manuel J. Veiga, Richard J. Satin
  • Patent number: 6235658
    Abstract: Composites with a textile character with a high water vapor permeability and a high waterproofness, consisting of textile fabrics, film coatings and/or extrusion coatings of modified polypropylenes and unmodified polypropylenes and optionally of an intermediate layer of bonding agent between the textile fabric and the film coating and/or extrusion coating. The composites with a textile character are produced by extrusion coating or film coating of the textile fabrics. Areas of use for the composite with a textile character are the hygiene sector, the medical sector, the textile and clothing industry, the automobile industry and construction.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: May 22, 2001
    Assignee: Borealis GmbH
    Inventors: Ulf Panzer, Christian Paulik, Anton Wolfsberger, Manfred Kirchberger
  • Patent number: 6207255
    Abstract: Preferably configured in ridge and recess irregularity, the inventive article provides adsorption of malodor components in air and also dust collecting function. It comprises woven sheet having coarse three dimensional structure whose areas of sheet surface as well as internal fiber structure allowable to contact to incoming outer air are formed with a binder layer made of latex or emulsion or non-solvent adhesive and such binder layer is adhered with activated carbon particles partially exposed. The process of adhereing activated carbon particles is conveniently performed by a fluidizing bed. The inventive sheet form fabric incorporates the particles with a high void ratio and uniformity and thereby exhibits high adsorptive rate and capacity, and exceedingly low pressure loss with such result that it is applicable regardless of high or air wind rate. Preferable use is a filter element of air-conditioner for cars.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: March 27, 2001
    Assignee: Kuraray Chemical Co., Ltd.
    Inventors: Masaki Fukuura, Teruhiro Okada, Shohichi Takamoto, Shushi Nishimura
  • Patent number: 6203888
    Abstract: Disclosed herein is an ink-jet printing cloth comprising at least two water-soluble neutral salts in a proportion of 0.1 to 30% by weight.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: March 20, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventor: Makoto Aoki
  • Patent number: 6169044
    Abstract: A laminate structure for use as a container for liquids including a structural substrate such as a paperboard which facilitates a gable top container having incorporated on its inner surface a layer of a fibrous matrix which has encapsulated or incorporated therein a finely ground divinylbenzene ethyl vinylbenzene copolymer, polystyrene divinylbenzene copolymer resin or a cyclodextrin placed on its inner surface. Additionally, the fibrous matrix may be produced as an insert and attached to the inner surface of the gable top container through the use of various items such as hot melt adhesives.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: January 2, 2001
    Assignee: International Paper Company
    Inventors: Michael Olshavsky, Gene Bartholomew, Elizabeth Cornelius, Henry Mei
  • Patent number: 6156677
    Abstract: A medical packaging material based on a cellulosic nonwoven web which may be used in an oxidizing gas plasma sterilization environment. The material includes a cellulosic nonwoven web made up of fibers. From about 50 to 100 percent by weight of the fibers, based on the total weight of the fibers, are cellulosic fibers, and from 0 to about 50 percent by weight of the fibers, based on the total weight of the fibers, are noncellulosic fibers, such as glass wool and synthetic polymer fibers. In some embodiments, the cellulosic nonwoven web may be composed of 100 percent by weight of cellulosic fibers. The cellulosic nonwoven web includes a saturant which is present at a level of from about 50 to about 150 percent by weight, based on the dry weight of the fibers. The saturant includes a cellulosic fiber-protecting synthetic polymer having an effectively low permeability to hydrogen peroxide. For example, the cellulosic fiber-protecting synthetic polymer may have a water vapor transmission rate for a 2.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: December 5, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Amy Brown Reed, Robert Emil Weber, Michael Joseph Scott
  • Patent number: 6140259
    Abstract: Glass fiber non-woven fabric for base material of laminate comprising binder binding glass fibers to each other and having glass transition temperature of higher than 120.degree. C.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: October 31, 2000
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Masayuki Ushida, Masayuki Noda, Masaru Ogata
  • Patent number: 6133168
    Abstract: A coated substrate having an MVTR greater than about 5 perms comprises a substrate, a monolithic, extrusion coated breathable polymer layer, and a primer layer intermediate and adhered to the substrate and the monolithic, extrusion coated breathable polymer layer.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: October 17, 2000
    Assignee: K2, Inc.
    Inventors: Robert E. Doyle, Mohamed A. Fahmy, James G. Moore
  • Patent number: 6114260
    Abstract: Sheet structural material and leather-like sheet structural material which have a porous layer formed by applying a foamed material having a thixotropy index of 2 to 4 and drying the foamed material and a method of producing the same, are disclosed. The foamed material is prepared by foaming a compound solution containing at least a base resin and a filler. The porous layer has open cells and the diameter of the open cells is in the range from 20 to 250 micrometer. The air permeability of the resulting sheet structural material is 3 to 13 cm.sup.2 /cm.sup.3 /sec.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: September 5, 2000
    Assignee: Koatsu Cloth Co., Ltd.
    Inventor: Soojin Kim