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WO2001085863A1 - Toile a revetement en mousse - Google Patents

Toile a revetement en mousse Download PDF

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Publication number
WO2001085863A1
WO2001085863A1 PCT/EP2001/005460 EP0105460W WO0185863A1 WO 2001085863 A1 WO2001085863 A1 WO 2001085863A1 EP 0105460 W EP0105460 W EP 0105460W WO 0185863 A1 WO0185863 A1 WO 0185863A1
Authority
WO
WIPO (PCT)
Prior art keywords
foam
flexible web
substrate
layer
polymer foam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2001/005460
Other languages
English (en)
Inventor
Dany Felix Maria Michiels
Lieven Vangheluwe
Kris Ledegen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Milliken Europe NV
Original Assignee
Milliken Europe NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Milliken Europe NV filed Critical Milliken Europe NV
Priority to AU74035/01A priority Critical patent/AU7403501A/en
Publication of WO2001085863A1 publication Critical patent/WO2001085863A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer

Definitions

  • the present invention relates to a flexible web, and more particularly to a flexible web having a substrate of fabric material and a coating layer of polymer foam.
  • the flexible web of the invention has particular application as a vibration dampening product for at least partially insulating one or more components from mechanical and/or sound vibrations.
  • a vibration dampening product may be in the form of an adhesive tape, such as a cable wrap or harness tape, and it will be convenient to hereinafter describe the invention in relation to this exemplary application. It should be appreciated, however, that the invention is not limited to vibration dampening applications, but that other tape and sheeting applications are also possible.
  • web is intended as a generic reference to a relatively thin planar element, such as a sheet or strip; such webs typically having a thickness of not more than about 2 mm.
  • Foam-coated flexible webs for use in adhesive tapes, such as cable wrap or harness tape, are already known. It is ever sought, however, to provide - improvements in this field - namely, superior tape properties and/or simpler and more cost- effective production techniques. The present invention is concerned with such improvements. Summary of the Invention
  • the present invention provides a flexible web having a substrate of fabric material and a coating layer of polymer foam, wherein the polymer foam is obtained from a water based polymer formulation, and the substrate of fabric material is an essentially two-dimensional open fabric construction which is at least substantially embedded in the layer of polymer foam.
  • the substrate of fabric material is an essentially two-dimensional open fabric construction which is at least substantially embedded in the layer of polymer foam.
  • all yarns of the fabric material are completely enveloped by the polymer foam.
  • the polymer foam is obtained in situ, i.e. on the substrate, from the water based polymer formulation.
  • a water based system for obtaining the polymer foam allows the chemical to in situ penetrate around and into the yarns of the substrate such that substantially all yarns are completely, i.e. over their full circumference, embedded in the polymer foam layer.
  • the present invention thus provides a closed structure, i.e. the open textile web used as substrate is closed by the polymer foam.
  • the water based polymer formulation for obtaining the polymer foam is an aqueous dispersion or a high solid system.
  • an outer surface of the flexible web is provided with adhesive properties for adherence to a range of materials.
  • the web is preferably formed as an elongate strip.
  • the flexible web of the invention preferably takes the form of an adhesive tape, such as cable wrap or harness tape, having sound and vibration absorption properties.
  • the primary function of the substrate is to provide the foam layer, the thickness of which is preferably in the range of from 0.1 mm to 1 mm, with a degree of robustness and dimensional stability.
  • a fabric substrate having an open fabric construction i.e. a relatively low-density construction exhibiting a plurality of apertures there-through between the fibres or filaments of the fabric
  • the substrate is able to be formed relatively light-weight with low material requirements, and therefore lower cost.
  • the open substrate construction is also advantageously able to be made readily tearable by hand in at least a transverse direction.
  • the foam substantially closes the open substrate construction (i.e. covers or seals the apertures through the fabric substrate) so that there is substantially no "strike-through" of adhesive when an adhesive compound is subsequently applied to the web to provide the adhesive properties.
  • the open fabric substrate may be selected from the group consisting of woven fabrics, non-woven fabrics, laid fabrics, multi-axial fabrics, and knitted fabrics (including weft and warp knitted fabrics) .
  • the substrate is a weft inserted-warp knitted (WIWK) fabric.
  • the fibres or yarns used in the fabric substrate may be spun yarns, monofil, multifil and/or tape yarns and may comprise any one or more of a wide variety of natural, synthetic or inorganic material including, but not limited to, cotton, wool, nylon, rayon, aramid, polya ide, polyethylene, polyester, PEN, PBO and PEEK.
  • the present invention also contemplates that the substrate may be formed from glass and/or carbon fibres or cord.
  • the polymer foam layer is inherently heat resistant and flame retardant.
  • Heat resistance and flame retardance are two important characteristics for products such as harness tape or cable wrap.
  • such products are used in electromechanical systems that produce mechanical and/or sound vibrations as they operate.
  • FR flame retardance
  • the invention provides a superior product having a simpler production technique. That is, no additional treatment or production step is required to achieve the heat resistance and/or fire-resistant properties of the tape.
  • Heat resistance is generally understood as the ability to resist changes in the physical properties of the foam despite increase in temperature, possibly to extreme levels.
  • “Flame retardancy” (FR) refers to a tendency not to burn, or a resistance to burning.
  • the heat resistance and flame retardancy of the foam layer are preferably designed to satisfy industry norms (e.g. SSFMV302) .
  • halogen compounds e.g. a fluorocarbon compound
  • halogen-free FR compounds such as Flovan cgn" and alternatives, silicates, polyphosphates, ammonium polyphosphates and derivatives.
  • other additives to the foam composition such as antimony and phophorous oxide compounds (e.g.
  • antimony trioxide and antimony pentoxide can be included for the desired FR properties.
  • Heat resistance can be provided through PU dispersion or other fillers such as silica, clay, graphite or other inert materials.
  • the fabric substrate itself may thereby also be treated for heat resistance and flame retardance.
  • the fabric substrate could be pre-treated for any one of its desired properties before application of the foam.
  • fluorocarbon could be applied to the substrate by pre- spraying or pre-dipping, instead of during the foam coating process .
  • the polymer foam layer in the invention may be formed as either a chemical foam or a mechanical foam or a physical foam, as is known in the art.
  • blowing agents such as carbonates, bicarbonates , azocarbamide, sulfonylhydrazides and pyrophosphates may be used.
  • appropriate additives such as ammonium derivatives or ammonium laurylsulfate, may be used to create the foam mechanically.
  • expandable microspheres may be used.
  • the foam layer may be applied to or deposited on the substrate in a dipping or spraying operation.
  • a mechanical foam is aerated and pumped as a liquid dispersion and deposited across the surface of a moving open fabric substrate.
  • a doctor blade or a double knife system is employed to spread or distribute the foam mixture evenly over the surface of the substrate.
  • a double knife system employs two adjustable blades, one of which is arranged over the top surface of the substrate and the other arranged beneath the bottom surface of the substrate.
  • the present invention also provides a method of manufacturing a foam coated flexible web, comprising the steps of: providing a substrate sheet of fabric material having an essentially two-dimensional open fabric construction; and applying a layer of polymer foam over a surface of said open fabric substrate, including the steps of: distributing a water based polymer foam formulation in liquid form substantially uniformly over said surface, and drying and/or curing said water based polymer foam formulation to form a foam layer at least substantially enveloping the fabric material.
  • the polymer foam composition may include acrylics, nitriles, polyurethane (PU) , styrene-butadiene rubber latex (SBR) , EVA, PVAC, neoprene, PVDC1, and/or EAA in combination with blends thereof and/or copolymers. Additives to the composition may enhance other properties of the product - for example colour, anti-oxidants, anti-ozonants, oil and water repellancy etc.
  • the foam composition may also include fillers, in addition to the desired FR ingredients already described.
  • the composition of the foam layer is such that, when the invention is embodied as an adhesive tape, the foam layer also has intrinsically good release properties enabling the tape strip to be easily unwound from a spool or reel.
  • intrinsic release properties of the foam further simplify manufacture as a special release coating, such as a lacquer, need not be applied. This invention does contemplate embodiments, however, in which an additional lacquer release coating may be applied.
  • the adhesive tape is also oil repellent and/or hydrophobic (i.e. water repellent). Such properties may be obtained with fluorocarbons (6 %) and with silicone-based products. Again, such properties are preferably inherent properties of the foam itself. Alternatively, the adhesive tape may include an additional layer or coating. Similar considerations are also true in respect ' of the adhesive tape having anti-microbial and anti-funghi properties.
  • the polymer foam layer may have flocking applied as an outer layer. That is, "flocking", or discontinuous textile fibres, may be applied (typically before drying or curing) to the polymer foam composition already coating the substrate. This provides the tape with an additional level of “cushioning", thereby enhancing its vibration dampening and sound absorption properties. Flocking may also increase the durability of the tape product. J 0)
  • OJ JH a C JH MH • H JH 3 4-1 O U -P ⁇ a rd rd JH rd TJ r-H rd JH ⁇ - r-t JH ⁇ .
  • OJ QJ > •r-l rd JH 0 TJ 4-1 a TJ rH rd to ⁇ c c 4-1 4-1 a ⁇ ⁇ o XJ rd J 4-J to CO 4-J rd ⁇ a 4-1
  • JH JH QJ 4-1 JH 5 ⁇ ⁇ a 4-> to XJ TJ ⁇ 3 xt 4-1 rd 4J JH o MH •H TJ G 4-1 JH rd rd TJ ⁇ o C ⁇ o a JH 2? • c a 4-J ⁇ ⁇ rd • to 3 TJ JH ⁇ ⁇ rd rd 3
  • the substrate then passes through a stenter in which the liquid foam dispersion is dried or cured by evaporating the water therefrom and polymerizing the other constituents in a condensation reaction.
  • the foam-coated substrate typically passes through a calendering operation in which the foam layer is compressed and densified.
  • the calendering operation may also be used to crush the foam cells in order to improve the resilient characteristics of the foam layer.
  • the foam layer so produced is resiliently deformable and adapted to dampen mechanical and/or sound vibrations. That foam layer furthermore substantially closes the open construction of the fabric substrate, thereby making it more suitable for application of an adhesive substance.
  • the foam coated substrate sheet is provided with adhesive properties over the surface thereof opposite to the surface carrying the layer of foam.
  • the adhesive properties are provided by application of an adhesive substance or glue such as a pressure-sensitive adhesive (PSA) .
  • PSA pressure-sensitive adhesive
  • This is applied as a coating, for example, by spraying. No strike-through of the adhesive occurs by virtue of the now closed construction of the foam coated substrate.
  • the sheet is slit into elongate strips which are then wound onto reels or spools to form the final vibration dampening tape product of the invention.
  • the thickness of the tape web is preferably in the range of about 0.4 to 1 mm.
  • a covering of discontinuous textile fibres or "flocking" may also be added to the foam composition before it is dried or cured to enhance vibration/sound absorption as well as to improve the wear characteristics of the tape.
  • the adhesive tape of the invention provides good sound absorption/ sound dampening properties.
  • the properties of the foam are such that it provides good release from its wound condition on the spool or reel. That is, the tacky pressure-sensitive adhesive on one side of the tape web readily releases from its adhesive contact with the polymer foam layer of an adjacent tape web element on the reel. A special lacquer "release” layer is therefore not required.

Landscapes

  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)

Abstract

L'invention concerne une toile flexible à revêtement en mousse pouvant être utilisée particulièrement comme bande adhésive, tel qu'un recouvrement pour câble ou un ruban de harnais, lorsque la toile se présente sous forme de bande. La toile de l'invention comprend une couche de revêtement en mousse polymère déformable de façon élastique pouvant être utilisée pour absorber les vibrations. Une surface externe de la toile présente de préférence des propriétés adhésives permettant à la toile d'adhérer sur une large gamme de matériaux. La bande flexible comprend un substrat formé d'une toile essentiellement bidimensionnelle présentant une structure de tissu ouvert au moins sensiblement encastrée dans la couche de mousse polymère obtenue à partir d'une formulation polymère aqueuse. L'invention concerne également un procédé de fabrication de cette toile à revêtement en mousse.
PCT/EP2001/005460 2000-05-12 2001-05-14 Toile a revetement en mousse Ceased WO2001085863A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU74035/01A AU7403501A (en) 2000-05-12 2001-05-14 Foam-coated web

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0011386.0 2000-05-12
GB0011386A GB2362116A (en) 2000-05-12 2000-05-12 Foam-coated web

Publications (1)

Publication Number Publication Date
WO2001085863A1 true WO2001085863A1 (fr) 2001-11-15

Family

ID=9891404

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/005460 Ceased WO2001085863A1 (fr) 2000-05-12 2001-05-14 Toile a revetement en mousse

Country Status (3)

Country Link
AU (1) AU7403501A (fr)
GB (1) GB2362116A (fr)
WO (1) WO2001085863A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006018141A1 (fr) * 2004-08-17 2006-02-23 Huntsman Textile Effects (Germany) Gmbh Polymeres mousses et tissus en textile a revetement de mousse
WO2007050000A1 (fr) 2005-10-26 2007-05-03 Industrial Property Of Scandinavia Ab Composition resistante au feu a des fins de revetement, scellement et protection
JP2009167326A (ja) * 2008-01-17 2009-07-30 Jerico:Kk 難燃性発泡合成樹脂材およびその成型方法
US20130302601A1 (en) * 2001-08-27 2013-11-14 Matscitechno Licensing Company Vibration dampening material
EP2716432A1 (fr) 2012-10-05 2014-04-09 3M Innovative Properties Company Procédé de clivage d'un joint adhésif
US12108818B2 (en) 2015-12-18 2024-10-08 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body
US12250980B2 (en) 2015-12-18 2025-03-18 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61285281A (ja) * 1985-06-12 1986-12-16 Nitto Electric Ind Co Ltd 粘着テ−プまたはシ−ト
US4705715A (en) * 1986-10-28 1987-11-10 The Kendall Company Adhesive tapes having a foamed backing and method for making same
JPH02190563A (ja) * 1989-01-13 1990-07-26 Matsushita Electric Works Ltd 制振・緩衝材の製造方法
US5314530A (en) * 1991-07-24 1994-05-24 Wacker Chemie Gmbh Coating compositions for producing watertight, vapor-permeable and flame retardant coatings
DE4442507A1 (de) * 1994-11-30 1996-06-05 Beiersdorf Ag Rückseitenbeschichtetes Klebeband auf Basis eines Kunit- bzw. Multikunitvlieses
EP0716136A2 (fr) * 1994-11-25 1996-06-12 Beiersdorf Aktiengesellschaft Bande adhésive à base de tissu non tissé
EP0716137A2 (fr) * 1994-11-25 1996-06-12 Beiersdorf Aktiengesellschaft Bande adhésive à base de tissu non tissé revêtu sur la face arrière
WO1997021778A1 (fr) * 1995-12-12 1997-06-19 Sliontec Corporation Composition auto-adhesive, bande ou feuille auto-adhesive fabriquee au moyen de la composition et bande auto-adhesive servant a attacher des harnais de cables
DE29706342U1 (de) * 1997-04-10 1997-07-10 Certoplast Vorwerk & Sohn GmbH, 42285 Wuppertal Klebeband, insbesondere Wickelband zur Bündelung von Kabeln in Automobilen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951718A (en) * 1975-01-03 1976-04-20 Mcdonnell Douglas Corporation Method for producing reinforced insulating foam
FR2405818A1 (fr) * 1977-10-14 1979-05-11 Sable Freres Int Materiau composite insonorisant pour parois metalliques
DE9205611U1 (de) * 1992-04-24 1992-06-11 Silu Verwaltung AG, Littau Selbstklebendes Band, insbesondere Dichtungs- und Fugenband

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61285281A (ja) * 1985-06-12 1986-12-16 Nitto Electric Ind Co Ltd 粘着テ−プまたはシ−ト
US4705715A (en) * 1986-10-28 1987-11-10 The Kendall Company Adhesive tapes having a foamed backing and method for making same
JPH02190563A (ja) * 1989-01-13 1990-07-26 Matsushita Electric Works Ltd 制振・緩衝材の製造方法
US5314530A (en) * 1991-07-24 1994-05-24 Wacker Chemie Gmbh Coating compositions for producing watertight, vapor-permeable and flame retardant coatings
EP0716136A2 (fr) * 1994-11-25 1996-06-12 Beiersdorf Aktiengesellschaft Bande adhésive à base de tissu non tissé
EP0716137A2 (fr) * 1994-11-25 1996-06-12 Beiersdorf Aktiengesellschaft Bande adhésive à base de tissu non tissé revêtu sur la face arrière
DE4442507A1 (de) * 1994-11-30 1996-06-05 Beiersdorf Ag Rückseitenbeschichtetes Klebeband auf Basis eines Kunit- bzw. Multikunitvlieses
WO1997021778A1 (fr) * 1995-12-12 1997-06-19 Sliontec Corporation Composition auto-adhesive, bande ou feuille auto-adhesive fabriquee au moyen de la composition et bande auto-adhesive servant a attacher des harnais de cables
DE29706342U1 (de) * 1997-04-10 1997-07-10 Certoplast Vorwerk & Sohn GmbH, 42285 Wuppertal Klebeband, insbesondere Wickelband zur Bündelung von Kabeln in Automobilen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199036, Derwent World Patents Index; Class A12, AN 1990-271255, XP002176959 *
PATENT ABSTRACTS OF JAPAN vol. 011, no. 150 (C - 422) 15 May 1987 (1987-05-15) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130302601A1 (en) * 2001-08-27 2013-11-14 Matscitechno Licensing Company Vibration dampening material
WO2006018141A1 (fr) * 2004-08-17 2006-02-23 Huntsman Textile Effects (Germany) Gmbh Polymeres mousses et tissus en textile a revetement de mousse
WO2007050000A1 (fr) 2005-10-26 2007-05-03 Industrial Property Of Scandinavia Ab Composition resistante au feu a des fins de revetement, scellement et protection
JP2009167326A (ja) * 2008-01-17 2009-07-30 Jerico:Kk 難燃性発泡合成樹脂材およびその成型方法
EP2716432A1 (fr) 2012-10-05 2014-04-09 3M Innovative Properties Company Procédé de clivage d'un joint adhésif
US12108818B2 (en) 2015-12-18 2024-10-08 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body
US12250980B2 (en) 2015-12-18 2025-03-18 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body
US12274318B2 (en) 2015-12-18 2025-04-15 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body

Also Published As

Publication number Publication date
GB0011386D0 (en) 2000-06-28
AU7403501A (en) 2001-11-20
GB2362116A (en) 2001-11-14

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