EP2198080B1 - Nappe de renforcement constituée de câblés hybrides pour produits en élastomère - Google Patents

Nappe de renforcement constituée de câblés hybrides pour produits en élastomère Download PDF

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Publication number
EP2198080B1
EP2198080B1 EP20080787460 EP08787460A EP2198080B1 EP 2198080 B1 EP2198080 B1 EP 2198080B1 EP 20080787460 EP20080787460 EP 20080787460 EP 08787460 A EP08787460 A EP 08787460A EP 2198080 B1 EP2198080 B1 EP 2198080B1
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EP
European Patent Office
Prior art keywords
twisted
textile yarn
strength element
yarn
ply according
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.)
Active
Application number
EP20080787460
Other languages
German (de)
English (en)
Other versions
EP2198080A1 (fr
Inventor
Wolfgang Reese
Claus Van Barneveld
Carole Justine
Birgit Freitag
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.)
Continental Reifen Deutschland GmbH
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Continental Reifen Deutschland GmbH
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
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Publication of EP2198080A1 publication Critical patent/EP2198080A1/fr
Application granted granted Critical
Publication of EP2198080B1 publication Critical patent/EP2198080B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/48—Tyre cords
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2039—Polyesters
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249922—Embodying intertwined or helical component[s]

Definitions

  • the invention relates to a reinforcing layer of a hybrid cord for elastomeric products and the use of such a reinforcement layer especially in pneumatic vehicle tires, but also in conveyor belts, flat belts, fabric hoses and bellows.
  • Strength supports for reinforcing various elastomeric products are well known.
  • a belt bandage which is formed in one or more layers, covering the belt edges and contains parallel and substantially circumferentially extending reinforcements in the form of rubber embedded in the cords.
  • This belt bandage serves, in particular in high-speed deployment, to prevent an elevation of the tire by the centrifugal forces occurring during driving.
  • the bandage is applied in the manufacture of tires in the form of layers with embedded in an unvulcanized rubber compound reinforcing agents that are wound or wound on the belt.
  • the reinforcing elements are embedded in rubber for such layers by a calender in the longitudinal direction a calender of substantially parallel filiform reinforcing materials, which are usually pretreated with a thermal impregnation and / or for better adhesion to the embedding rubber in the known manner or pass through an extruder to coat with the rubber compound.
  • the tire In the bombing with previously used devices and the vulcanization of the tire, the tire usually extends in the shoulder area by the survey by up to 2% and in the Center area up to 4% compared to unvulcanized blank, when the blank is wound on a flat drum. With newer construction drums only a lower elongation during tire production of about max. 2% required. For newer devices, the survey is lower.
  • the cords of the bandage are to allow a sufficient elevation in the camber and in the vulcanization mold in the tire production, so that the tire can be formed precisely, and they should ensure a good high speed capability after the completion of the tire while driving. To meet these requirements, the cords should be stretched with an effort of about 4% with moderate effort and from a higher elongation only with very high force.
  • Conveyor belts are belts made endless, which as an essential feature usually contain a reinforcement made of fabric inserts constructed of identical and / or different cord materials.
  • the cord fabric is subject here already in the production of conveyor belts strong mechanical stress. It is fritationiert or paved to make it easy to attach to the slip layer and then occupied in the calender on both sides, several times doubled and finally aufkalandriert the ceiling pad.
  • Conveyor belts usually have to withstand significant loads due to high transport performance, which is why usually a high strength carrier use is necessary.
  • a tension member is formed from a reinforcement layer consisting of cable cords.
  • the cords embedded in a rubber matrix are protected by one or two rubberized transfer fabrics.
  • the Cord should allow the flat belt transmission of high forces at low strains.
  • fabric hoses which are exposed to high internal and external pressures and are therefore reinforced by a suitable reinforcement layer of a cord fabric or individual cords.
  • reinforcement by a reinforcing layer constructed of cords is also important for partially absorbing the stresses of compression, tension or thrust.
  • the requirement for the strengthened support layer composed of cords in turn lies in the high power transmission with the lowest possible strains.
  • the hybrid cord consists of glass fibers and aramid fibers, which have each been subjected to a resorcinol-formaldehyde Kaufschuklatex (RFL) treatment.
  • RRL resorcinol-formaldehyde Kaufschuklatex
  • D2 describes a reinforcing layer for the belt bandage of Fahrzetig poverty, wherein the strength members are hybrid cords, which are composed of a first yarn with a high elastic modulus and a second yarn with a low modulus of elasticity.
  • the first yarn of the hybrid cord is an aramid yarn, while the second yarn of the hybrid cord is a nylon yarn.
  • D4 a hybrid cord composed of a lower elastic modulus yarn and a higher modulus yarn is described.
  • the problem to be solved by D4 is to achieve a reduced tire weight through the use of textile belts (stuscht Stahlgürteln) and at the same time occurrence Cracks in the groove bottom of the profile ("Groove Cracks") to avoid during driving.
  • the yarn having a lower elastic modulus nylon, polyester or the like may be used, while as the yarn having the higher elastic modulus, aromatic polyamide fibers, polyvinyl alcohol fibers, carbon fibers, glass fibers or the like may be used.
  • the object of the invention is now to provide a built-up of cords reinforcement layer, which can ensure a higher compared to the prior art power transmission with low elongation.
  • Another object of the invention is the use of said reinforcement layer for the production of particular pneumatic vehicle tires, but also of conveyor belts, flat belts, fabric hoses and bellows.
  • a reinforcement layer is provided, wherein the reinforcement are constructed of a hybrid cord, which are arranged substantially parallel to each other within the layer and from a first twisted textile yarn of a first material and a second twisted textile yarn a second material which are end twisted together, wherein the first twisted textile yarn is a polyketone yarn and the second twisted textile yarn is a polyester.
  • the reinforcement layer according to the invention of a hybrid cord consisting of polyketone and polyester yarn has a better elongation than an aramid cord and a lower shrinkage than nylon cord and, in addition, polyketone is cheaper to obtain compared to aramid.
  • the elongation of the hybrid cords can be controlled by suitable stretching known to those skilled in the art, advantageously a 1-bath process being sufficient for a hybrid cord of polyketone and polyester yarn.
  • the first twisted textile yarn is a polyketone yarn and the second twisted textile yarn is a polyester yarn selected from the group consisting of polyethylene terephthalate (PET) and / or polyethylene naphthalate (PEN) and / or polybutylene terephthalate (PBT) and / or polycarbonate (PC) is.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PBT polybutylene terephthalate
  • PC polycarbonate
  • polyketone is meant a polyolefin ketone which is a condensation product of ethene and carbon monoxide.
  • the first and / or the second twisted textile yarn have a fineness of 400 to 2200 dtex / has.
  • a comparatively fine hybrid cord is created, which due to its low weight, but also due to its above-described advantageous material properties such as the sustainability of both yarns of the hybrid cord according to the invention, low to no shrinkage properties of the cord and the good connectability of the cord to a rubber matrix, for the use of already mentioned elastomeric products necessary mechanical properties, increased.
  • UHP ultra-high-performance
  • the difference in the fineness between the two yarns should be chosen as small as possible in order to obtain the most uniform possible cord, which can be processed well and has a good residual strength after fatigue. It is advantageous if both yarns forming the cord have the same fineness.
  • the hybrid cord forming yarns are twisted end with a rotation of 150 to 600 t / m, preferably with 340 to 480 t / m.
  • the textile hybrid cords In order to ensure a reliable adhesion of textile reinforcing materials to the rubber, it is expedient to provide the textile hybrid cords with an adhesive impregnation, for example with an RFL dip in the 1- or 2-bath process.
  • the tire has a particularly good high-speed capability and flattening under load (flat-spotting) are greatly reduced.
  • the advantage lies in the fact that the hybrid-strength supports have a higher modulus than conventionally used nylon reinforcement layers, the adhesion to the rubber is improved and there is also a cost advantage.
  • Another exemplary hybrid cord used in the reinforcing layer of the present invention is a polyketone yarn having a fineness of 1670 dtex, Z-twisted 350 T / m initial twist, and a polyester yarn having a fineness of 1670 dtex, Z-twisted 350 T
  • the first twist was twisted to a hybrid cord (polyketone 1670x1 + polyester 1670 x1) S- with a final twist of 350 T / m.
  • These cords have the properties shown in the table.
  • hybrid cords of polyketone and nylon are listed.
  • the yarns S and the cord Z can be turned.
  • Elongation at break according to ASTM D 855 is about 10 to 11% for the polyketone and polyester hybrid cords, while the elongation at break of the polyketone and nylon hybrid cords is 11.33% and 13.58%, respectively.
  • the elongation of the hybrid cords at 45N according to ASTM D 855 shows that the polyketone and polyester hybrid cords are only subjected to 3.6% and 3.2% elongation, respectively, while the polyketone / nylon hybrid cords are 4.46% and 5.94% are stretched.
  • the shrinkage behavior according to ASTM D 855 at 180 ° C is also more advantageous in the hybrid cords of polyketone and polyester than in the hybrid cords of polyketone and nylon. While the polyketone and nylon hybrid cords shrink by 6.37% and 7.13%, respectively, the polyketone and polyester hybrid cords are subject to shrinkage of only 4.0% and 4.7% respectively.
  • the polyketone / polyester hybrid cord provides a reinforcing layer for elastomeric products having approximately equal low elongation force transmission, and thus both for use in pneumatic vehicle tires, particularly for use at high speeds, and for other elastomeric products high mechanical stresses are exposed, such as Conveyor belts, flat belts, fabric hoses and air bellows.
  • the cost factor is to be considered.
  • the use of aramid yarn is more expensive than the use of polyketone yarn, which also results in lower elongation at break and lower shrinkage behavior.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tires In General (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (15)

  1. Couche de support de renforcement pour produits élastomères, les supports de renforcement étant des câbles hybrides, disposés de manière essentiellement parallèle les uns aux autres dans la couche et constitués d'un premier fil textile torsadé en un premier matériau et d'un deuxième fil textile torsadé en un deuxième matériau, qui sont assemblés l'un avec l'autre en une torsade finale, le premier fil textile torsadé étant un fil en polycétone et le deuxième fil textile torsadé étant un fil en polyester.
  2. Couche de support de renforcement selon la revendication 1, le deuxième fil textile torsadé étant un fil en polyester choisi dans le groupe constitué par le poly(téréphtalate d'éthylène) (PET) et/ou le poly(naphtalate d'éthylène) (PEN) et/ou le poly(téréphtalate de butylène) (PBT) et/ou le polycarbonate (PC).
  3. Couche de support de renforcement selon la revendication 1 ou 2, le deuxième fil textile torsadé présentant une finesse de 400 à 2200 dtex.
  4. Couche de support de renforcement selon l'une quelconque des revendications 1 à 3, le premier fil textile torsadé présentant une finesse de 400 à 2200 dtex.
  5. Couche de support de renforcement selon l'une quelconque des revendications 1 à 4, le premier et le deuxième fil textile torsadé étant assemblés en un câble hybride en formant une torsade finale de 150 à 600 t/m.
  6. Couche de support de renforcement selon l'une quelconque des revendications 1 à 5, le premier et le deuxième fil textile torsadé étant assemblés en un câble hybride en formant une torsade finale de 380 à 480 t/m.
  7. Couche de support de renforcement selon l'une quelconque des revendications 1 à 5, le premier fil textile torsadé, d'une finesse de 1670 dtex, torsadé en Z en une première torsade de 340 t/m, et le deuxième fil textile torsadé, d'une finesse de 1440 dtex, torsadé en Z en une première torsade de 340 t/m, étant torsadés en S en un câble hybride, polycétone 1670 x 1 + polyester 1440 x 1, en formant une torsade finale de 340 t/m.
  8. Couche de support de renforcement selon l'une quelconque des revendications 1 à 5, le premier fil textile torsadé, d'une finesse de 1670 dtex, torsadé en Z en une première torsion de 350 t/m, et le deuxième fil textile torsadé, d'une finesse de 1670 dtex, torsadé en Z en une première torsade de 350 t/m, étant torsadés en S en un câble hybride, polycétone 1670 x 1 + polyester 1670 x 1, en formant une torsade finale de 350 t/m.
  9. Couche de support de renforcement selon l'une quelconque des revendications 1 à 8, le premier et/ou le deuxième fil textile torsadé étant pourvu(s) d'une imprégnation d'adhérence pour assurer l'adhérence du support de renforcement textile au caoutchouc.
  10. Utilisation d'une couche de support de renforcement selon l'une quelconque des revendications 1 à 9 pour la fabrication d'un pneu de voiture.
  11. Utilisation d'une couche de support de renforcement selon la revendication 10 pour la fabrication d'un pneu de voiture, la couche de support de renforcement étant disposée comme bandage de ceinture et/ou comme renforcement de talon.
  12. Utilisation d'une couche de support de renforcement selon l'une quelconque des revendications 1 à 9 pour la fabrication d'une courroie de transport.
  13. Utilisation d'une couche de support de renforcement selon l'une quelconque des revendications 1 à 9 pour la fabrication d'une courroie plate.
  14. Utilisation d'une couche de support de renforcement selon l'une quelconque des revendications 1 à 9 pour la fabrication d'une gaine textile.
  15. Utilisation d'une couche de support de renforcement selon l'une quelconque des revendications 1 à 9 pour la fabrication d'un soufflet pneumatique.
EP20080787460 2007-09-15 2008-08-26 Nappe de renforcement constituée de câblés hybrides pour produits en élastomère Active EP2198080B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710044153 DE102007044153A1 (de) 2007-09-15 2007-09-15 Festigkeitsträgerlage aus Hybridcorden für elastomere Erzeugnisse
PCT/EP2008/061108 WO2009033942A1 (fr) 2007-09-15 2008-08-26 Nappe de renforcement constituée de câblés hybrides pour produits en élastomère

Publications (2)

Publication Number Publication Date
EP2198080A1 EP2198080A1 (fr) 2010-06-23
EP2198080B1 true EP2198080B1 (fr) 2013-06-26

Family

ID=39832551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080787460 Active EP2198080B1 (fr) 2007-09-15 2008-08-26 Nappe de renforcement constituée de câblés hybrides pour produits en élastomère

Country Status (5)

Country Link
US (1) US20100166993A1 (fr)
EP (1) EP2198080B1 (fr)
DE (1) DE102007044153A1 (fr)
ES (1) ES2426766T3 (fr)
WO (1) WO2009033942A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9561397B2 (en) * 2011-05-16 2017-02-07 Amir Zaki Grab-and-use exercise strap
US20120295777A1 (en) * 2011-05-16 2012-11-22 Zaki Amir A Grab-And-Use Exercise Strap
DE102018209525A1 (de) * 2018-06-14 2019-12-19 Continental Reifen Deutschland Gmbh Verstärkungscord für elastomere Erzeugnisse, insbesondere für Fahrzeugluftreifen, und elastomeres Erzeugnis

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07149112A (ja) * 1993-11-26 1995-06-13 Bridgestone Corp 空気入りラジアルタイヤ
DE69403315T2 (de) 1993-12-28 1997-08-28 Sumitomo Rubber Ind Radialer Luftreifen
GB9603948D0 (en) * 1996-02-24 1996-04-24 Sumitomo Rubber Ind Reinforcement ply and method of manufacture
US7015303B1 (en) * 1998-08-10 2006-03-21 Asahi Kasei Kabushiki Kaisha Polyketone solution
US6601378B1 (en) * 1999-09-08 2003-08-05 Honeywell International Inc. Hybrid cabled cord and a method to make it
US20020017351A1 (en) 2000-05-30 2002-02-14 Shinichi Miyazaki Pneumatic tire
JP3883510B2 (ja) * 2001-02-27 2007-02-21 旭化成せんい株式会社 ポリケトン繊維及びその製造方法
JP4660014B2 (ja) * 2001-05-23 2011-03-30 旭化成せんい株式会社 ロープ
JP3846236B2 (ja) * 2001-07-24 2006-11-15 帝人テクノプロダクツ株式会社 ハイブリッドコード及びゴム補強物
JP4169506B2 (ja) * 2001-11-12 2008-10-22 横浜ゴム株式会社 空気入りラジアルタイヤの製造方法
JP3995495B2 (ja) * 2002-02-13 2007-10-24 横浜ゴム株式会社 空気入りラジアルタイヤ
JP2004306636A (ja) * 2003-04-02 2004-11-04 Bridgestone Corp 空気入りラジアルタイヤ
ATE320926T1 (de) 2003-05-09 2006-04-15 Continental Ag Gürtelbandage mit hybridkord und reifen damit
US7721780B2 (en) * 2005-07-21 2010-05-25 The Goodyear Tire & Rubber Company Monoply pneumatic run-flat tire with composite ply cord

Also Published As

Publication number Publication date
DE102007044153A1 (de) 2009-03-26
US20100166993A1 (en) 2010-07-01
EP2198080A1 (fr) 2010-06-23
ES2426766T3 (es) 2013-10-25
WO2009033942A1 (fr) 2009-03-19

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