• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention particularly relates to a reinforcing cord for e astomeric objects, which cord is built up of two or more groups of endless filament bundles which are twisted or laid together. Each group contains at least one bundle of PPDT filaments and at least one bundle of rayon filaments. The cord is especially meant for use in pneumatic tyres of vehicles. When use is made of the cord composite according to the invention, radial ply tyres for motor-lorries need be provided with only two carcass plies and heavy-duty tyres of passenger cars need comprise only one carcass ply.
    公开号:SU1102484A3
    申请号:SU813236553
    申请日:1981-01-16
    公开日:1984-07-07
    发明作者:Питер Ван Дер Верфф Обеле
    申请人:Акцо Н.В. (Фирма)；
    IPC主号:
    专利说明:

    1 The invention relates to the manufacture of tire frames with an elastomeric material used for the manufacture of pneumatic tires for vehicles. A tire carcass with an elastomeric material is known that contains reinforcing cord threads, each of which has at least two complex threads that are twisted one with the other, each of which contains a bundle of elementary polyparaphenylene terephthalamide threads t1J. However, the high twist of polyparaphenylene terephthalamide yarns with polyester or polyamide yarns, necessary to reduce the difference in the elasticity of these two types of yarns, reduces the strength of the polyparaphenylene terephthalamide yarns, which deteriorates the performance properties of the frame. The aim of the invention is to improve the performance properties. This target in a tire carcass with an elastomer material containing reinforcing cord threads, each of which has at least two filaments twisted one with another, each of which contains a bundle of elementary polyparaphenylene terephthalamide yarns, is achieved by the fact that each complex thread additionally contains a bundle viscose yarns with a tensile strength of at least 3 cN / dtex, mainly 5 cN / dtex, and an elongation at not less than 8%, mostly 13%, and polyparaphenylene terephthalamide yarns have a tensile strength is not less than 10 cN / dtex, mainly 17 cN / dtex, and at least 2.7% elongated at break. predominantly 3.4%, while the ratio of the average cross-sectional area of viscose yarns in a bundle to the average cross-sectional area of a polyp of phenylene terephthalamide yarns is 0.2-4.0, mostly 1.01, 5, and the ratio of the linear density of the viscose bundle The yarns to the linear density of the bundle of polyparaphenylene-phthalamide yarns in the cadre of the complex yarn are 0.1-10, predominantly 1-2. The linear density of the polyparapheny of the band-terephthalamide yarns in each multifilament yarn is 3504 3500 dtex, mainly 850-1700,1700 dtex, with the number of filaments in the beam 200-2400, mainly 500-1000. The linear density of the beam of viscose yarns in each complex yarn is 1000-3000 dtex with the number of filaments in the ZOO2000 beam. Each complex thread has a twist of 100-400 twist / m, preferably 200-300 twist / m, and the cord thread has a twist opposite to it equal to 100-400 twist / m, mostly 200300 twist / m. The cord yarn has a bonding component for adhesion and / or a protective component for rubber. The binder and protective components are made of resorcil-formaldehyde latex resin or polyurethane latex resin. Figure 1 shows a tire with a frame MJ in figure 2 - part of the tire, in figure. Complex cord thread} in figure 4-8 - cord, cross-section, figure 9 - complex thread cross-section. Pneumatic tire 1. It has an elastomeric material from rubber 2 with a tire carcass in the form of two woven layers 3 and 4 made of cord threads 5 and passing through the entire tire from one side 6 to the other side (not shown), where woven layers round steel wires 7 of circular cross section (FIG. 1) or square cross section (FIG. 2). Under the tread 8, the tire can be reinforced, for example, with three belt bands 9,10 and 11 of conventional construction. Each cord 5 has at least two multifilament yarns twisted with one another, each of which is twisted of 12 viscose yarns of a non-twisted bundle with a tensile strength of at least 3 CN / dtex, preferably 5 CN / dtex, and an elongation at least 8 %, predominantly 13%, and a non-twisted bundle of 13 polyparafennelenterephthalamide yarns with a tensile strength of at least 10 cN / dtex, preferably 17 cN / dtex, and an elongation at break of at least 2.7%, predominantly 3.4% average cross-sectional area of viscose yarn in the bundle to the average cross-sectional area of the polyparaphenipenterephthalamide yarns in the bundle is O, 24, 0, preferably 1.0-1.5.
    The linear density of the polyparaphenylene terephthalamide yarns in each multifilament yarn is 350-3500 dtex, preferably 850-1700 dtex, with the number of filaments in the beam 200-2400, mainly 500-1000J The linear dependence of the viscose bundle in each multifilament yarn is 1000-3000 dtex at the number of filaments in the beam 5002000. The ratio of the linear density of the beam of viscose yarns to the linear DENSITY of the bundle of polyparaphenylene terephthalamide yarns in each complex yarn is 0.1-10, preferably 1-2. This ratio of the cross-sectional areas of the bundles of yarns of both types and their linear densities makes it possible to obtain a halogenated cord thread similar to the cord thread of the same type of fibers.
    Each complex thread has a twist equal to 100-400 twist / m, mainly 200-300 twist / m, and a cord thread has an opposite twist equal to 100-400 twist / m, mainly 200-300 twist / m.
    The cord thread in FIGS. 5 and 7 contains three S-twisted multifilament yarns, each of which has. 2-twist and contains a bundle of 1000 viscose yarns with a linear density of 1840 dtex, and a bundle of 1000 polyparaphenylene terephthalamide yarns with a linear area of 1680 dtex.
    The cord thread in FIG. 6 has two similar multifilament yarns. As the third component, the viscose yarn bundle, and the cord thread in FIG. B consists of five multifilament yarns.
    The cord is coated with a binding component for adhesion and / or a protective component for rubber, made of resins on the basis of resorcil-formaldehyde latex or based on polyurethane latex, by passing the thread through a bath and subsequent heat treatment at 120-220 ° C, preferably at 150-175 C, and a tension of 5-100 mN / tex, preferably. 10–20 mN / tex, for 50 ° C, mainly 120 s.
    Such processing of cord yarn does not reduce its strength and in some
    cases contributes to a few percent increase in strength, which is 650-690 N.
    Due to the indicated characteristics of the elementary yarns of both types of cord yarn with an S-twist equal to 225, twist / m, obtained from two complex yarns with a Z-twist equal to 225 twist / m, each of which has a linear density beam of 2440 dtex from 1000 viscose 1680 dt of 1000 polyparaphenylene terephthalamide yarns and a linear pltness bundle, after treatment in the bath, with a diameter of 1.03 mm, have a tensile strength of about 720 mN / tex and an elongation at break.
    When performing a cord yarn of three complex yarns with a linear density of 1000 viscose yarns of 1,840 dtex and a linear density of 500 polyparaphenylene terephthalamide yarns of 840 dtex, it has a diameter of 0.98 mm and a tensile strength of 700 mN / tex and elongation at break of 6.8%.
    The S-twist cord is 270 steamer / m, obtained from three complex yarns with 2 twists equal to 270 steamer / m, each of which has a linear density beam of 840 dtex from 1000 viscose yarns in a linear density beam of 1680 dtex from 1000 polyparaphenylene terephthalamide yarns, has a diameter of 1.27 mm, a tensile strength of 507 mN / tex and an elongation at break of 10%.
    By increasing the number of polyparaphenylene terephthalamide yarns to 5000, reducing the linear density of the beam to 840 dtex and increasing the twist of the complex yarns and the cord yarn to 310 twist / m, the breaking strength of the latter decreases to 463 mN / t without changing the elongation at break.
    The 5-twist cord is 225 twist / m, obtained from three complex yarns with a Z-twist equal to 225 twist / m, each of which has a linear density beam of 1840 dtex from 1000 viscose yarns and a linear density beam of 840 dtex from 500 polyparaphenylene terephthalamide yarns, has a diameter of 0.98 mm, strength at a gap of 630 mN / tex
    and elongation at break of 6.45%. With an increase in both twists to 250 twist / m, the strength decreases to 557 mN / tex, and the elongation at break is 8%.
    Despite no significant difference in the modulus of elasticity and load at a given elongation between viscose and polyparaphenylene terephthalamide yarns, the low-twist cord yarn allows fabric to be made from it, which is similar in properties to fabrics made from homogeneous fibers. Since the dependence of the change in deformation of fabric from viscose yarns on stress is characterized by a concave curve, and a similar relationship to a fabric made from polyparagraphs and telephthalate yarns is described by a curve, the combination of these strands in a complex yarn makes it possible to straighten the 3rd line. When present in a cord consisting of three
    complex yarns, 30% polyparaphenylene terephthalamide yarn strain dependence, cord yarn stress is characterized by a straight line.
    When loading the cord thread before breaking, there is a simultaneous break of the threads of both types, while the dimensional stability of the cord thread and the fatigue strength is higher than that of the viscose cord.
    This cord yarn allows only two layers of cord fabric to be used in the tissue frame, ensuring the necessary high strength and adhesion to rubber, similar to the adhesion of cord fabric obtained only from viscose fabrics. The presence in the tire carcass of two layers of cord fabric reduces its mass and the mass of the elastomeric material in the tire.
    权利要求:
    Claims (7)
    [1]
    . TIRE FRAME C. ELASTOMER | MATERIAL, containing reinforcing cord yarns, each of which has at least two multifilament yarns twisted with one another, each of which contains a bundle of elementary polypair.phenylene terephthalamide yarns, characterized in that, for improving its performance properties, each multifilament yarn additionally contains a bundle of viscose yarns with a tensile strength of at least 3 cN / dtex, mainly 5 cN / dtex, and an elongation at break of at least 8%, mainly 13%, and polyparaphenylene terephth lamide yarns have a tensile strength of at least 10 cN / dtex, preferably 17 cN / dtex, and an elongation at break of at least 2.7%, mainly 3.4%, with the ratio of the average cross-sectional area of viscose yarns to the average cross-sectional area polyparaphenylene-terephthalamide filaments is 0.2-4.0, preferably 1.0-1.5, and the ratio of the linear density of a bundle of viscose yarns to the linear density of a bundle of polyparaphenylenetelephthalamide filaments in each multifilament yarn is 0.1-10, preferably 1- 2.
    [2]
    2. The frame according to claim 1, characterized in that the linear density of polyparaphenylene terephthalamide yarns in each multifilament yarn is 350-3500 dtex, mainly 850-1700 dtex, with the number of filaments in the bundle 200-2400, mainly 500-1000
    [3]
    3. The frame according to claim 1, characterized in that the linear density of the bundle of viscose yarns in each complex yarn is 10003000 decitex with the number of elementary threads in the bundle 500-2000.
    [4]
    4. The frame according to claim 1, characterized in that each complex thread has a twist of 100—
    400 torsion / m, mainly 200,000 torsion / m, and the cord has a twist of 100,400 t / m opposite to it, mostly 200 • 300 torsion / m.
    [5]
    5. The frame according to claims 1 to 4, characterized in that · the cord thread has a bonding component for adhesion and / or a protective component for rubber.
    [6]
    6. The frame according to claim 5, characterized in that the binder and protective components are made of resins based on resorcyl formaldehyde latex "
    1Y102484
    [7]
    7. The frame according to claim 5, characterized in that the binder and protective components are made of dmols based on polyurethane latex.
    类似技术:
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    SU1102484A3|1984-07-07|Tyre core with elastomeric material
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    CA2201465C|2003-10-07|Endless power transmission belt construction, cord therefor and methods of making the same
    US5855704A|1999-01-05|Pneumatic tire with polyester belt cord
    KR19990037011A|1999-05-25|A reinforcing fabric for elastic material products and an elastic material product comprising the reinforcing fabric
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    EP0443459B1|1996-12-18|Fiber reinforced rubber
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    RU2741973C1|2021-02-01|Reinforcing layer for items from elastomer material and pneumatic tires of vehicle
    KR100324827B1|2002-06-24|Air-in radial tire
    JPH05179531A|1993-07-20|Yarn having plurally layered structure and web using the same
    JPH1058911A|1998-03-03|Tire for vehicle
    同族专利:
    公开号 | 公开日
    EP0034378B1|1984-03-21|
    DE3162709D1|1984-04-26|
    US4389839A|1983-06-28|
    EP0034378A1|1981-08-26|
    ES8203728A1|1982-04-16|
    ES498517A0|1982-04-16|
    BR8100222A|1981-08-04|
    CA1150116A|1983-07-19|
    MX7454E|1988-12-15|
    JPS56107038A|1981-08-25|
    AT6756T|1984-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3419059A|1965-05-04|1968-12-31|Goodyear Tire & Rubber|Reinforcement element|
    US3429354A|1966-02-07|1969-02-25|Celanese Corp|Tire cord constructions and tires made therewith|
    US3938313A|1967-08-29|1976-02-17|Owens-Corning Fiberglas Corporation|Reinforcement for tires and method of making same|
    US3977172A|1975-02-06|1976-08-31|E. I. Du Pont De Nemours And Company|Reinforcement cord|
    JPS61452B2|1976-06-17|1986-01-08|Teijin Ltd|
    US4155394A|1977-08-29|1979-05-22|The Goodyear Tire & Rubber Company|Tire cord composite and pneumatic tire|
    JPS55122012A|1979-03-13|1980-09-19|Asahi Chem Ind Co Ltd|Poly-p-phenylene terephthalamide fiber having improved fatigue resistance and its production|US4652252A|1983-11-21|1987-03-24|The Gates Rubber Company|Toothed belt and method with reinforcement cord|
    US4852625A|1984-04-10|1989-08-01|Mitsubishi Belting Ltd.|Tire for two-wheeled vehicle in which individual cord belts contain both adhesive and reinforcing cords|
    JPH0443801B2|1984-04-18|1992-07-17|Yokohama Rubber Co Ltd|
    JPH0443802B2|1984-04-27|1992-07-17|Yokohama Rubber Co Ltd|
    JPS6164003U|1984-09-28|1986-05-01|
    JPS62116303A|1985-11-18|1987-05-27|Bridgestone Corp|Pneumatic tire fore vehicle|
    JP2516614Y2|1986-07-24|1996-11-06|株式会社ブリヂストン|Aromatic polyamide fiber cord for rubber reinforcement|
    IT1210379B|1987-04-01|1989-09-14|Zanussi Elettrodomestici|DRIVE BELT.|
    US4832102A|1987-06-15|1989-05-23|The Goodyear Tire & Rubber Company|Pneumatic tires|
    US4893665A|1988-02-17|1990-01-16|The Goodyear Tire & Rubber Company|Cables for reinforcing deformable articles and articles reinforced by said cables|
    JPH0291239A|1988-09-22|1990-03-30|Sumitomo Rubber Ind Ltd|Radial tire for autobicycle|
    FR2671030A1|1990-12-27|1992-07-03|Michelin Rech Tech|REINFORCING ASSEMBLIES WITH MONOFILAMENTS OF ORGANIC POLYMERS.|
    JP2714296B2|1991-11-26|1998-02-16|住友ゴム工業株式会社|Pneumatic radial tire|
    US5744237A|1993-02-19|1998-04-28|Hoechst Celanese Corporation|Heterofilaments for cord reinforcement in rubber goods|
    US5407701A|1993-05-14|1995-04-18|The Goodyear Tire & Rubber Company|Cords for pneumatic tires and process for making them|
    US6460588B1|1997-09-26|2002-10-08|The Goodyear Tire & Rubber Company|Pen reinforcement for rubber composites|
    JP3961667B2|1998-05-19|2007-08-22|株式会社ブリヂストン|Method for producing organic fiber dip cord having connecting portion|
    EP1621666A3|1998-07-29|2007-04-18|Sumtiomo Rubber Industries Ltd|Metallic cord and pneumatic tyre|
    JP3864820B2|2002-03-22|2007-01-10|日本板硝子株式会社|Hybrid cord for rubber reinforcement and rubber products|
    KR101306235B1|2007-11-09|2013-09-17|코오롱인더스트리 주식회사|The Industrial High Tenacity Polyester Fiber with superior Creep Properties and the manufacture thereof|
    US20100065178A1|2008-09-15|2010-03-18|Serge Julien Auguste Imhoff|Carcass ply for a pneumatic tire|
    US20110014467A1|2009-07-16|2011-01-20|Brown Nancy E|Extrusion coated non-twisted yarn|
    EP2601333B2|2010-08-05|2017-06-28|Cordenka GmbH & Co. KG|Use of a cord made of cellulosic multifilament yarns having an increased linear density of individual filaments|
    EP2781633A1|2013-03-18|2014-09-24|Continental Reifen Deutschland GmbH|Hybrid cord of at least two mutually twisted multifilament yarns|
    CN103397534B|2013-08-05|2016-05-04|上海婉静纺织科技有限公司|The blend fabric of Fanglun l414 and anti-flaming viscose|
    CN103361994B|2013-08-05|2016-08-03|上海婉静纺织科技有限公司|Thermal resistant fire resistant fibric|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL8000265|1980-01-16|
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