PNEUMATIC TIRE
    1.
    发明公开
    PNEUMATIC TIRE 审中-公开
    充气轮胎

    公开(公告)号:EP3305549A1

    公开(公告)日:2018-04-11

    申请号:EP16800004.0

    申请日:2016-05-24

    发明人: TAKENAKA, Yuichi

    摘要: A pneumatic tire has a tire skeleton portion in which a plurality of arranged reinforcing cords are covered by a rubber layer. The reinforcement cords are organic fiber cords formed from polyethylene terephthalate. The organic fiber cords have an intermediate elongation (2.0 cN/dtex) of 3.0% to 4.0%, a dimensional stability index of 5.0% to 6.5%, and a difference between an elongation ratio at a strength at 70% the strength at the time of breaking and an elongation ratio at the time of breaking in a strength-elongation curve of 11% to 16%.

    摘要翻译: 充气轮胎具有轮胎骨架部分,其中多个布置的加强帘线被橡胶层覆盖。 增强帘线是由聚对苯二甲酸乙二醇酯形成的有机纤维帘线。 有机纤维帘线具有3.0%至4.0%的中等伸长率(2.0cN / dtex),5.0%至6.5%的尺寸稳定性指数,以及当时强度为70%时的伸长率 断裂时的断裂伸长率和11%至16%的强度伸长率断裂时的断裂伸长率。

    METHOD FOR PREPARING CORD YARN WITH EXCELLENT SHAPE STABILITY
    6.
    发明公开
    METHOD FOR PREPARING CORD YARN WITH EXCELLENT SHAPE STABILITY 审中-公开
    用于生产KORDGARN具有优良的尺寸稳定性

    公开(公告)号:EP2889404A1

    公开(公告)日:2015-07-01

    申请号:EP13872607.0

    申请日:2013-07-16

    发明人: KIM, Il Han

    IPC分类号: D02G3/26 D02G3/02

    摘要: A method for manufacturing a cord yarn, which has at least one filament strand, includes applying a first twist so that a K1 value has a value of 0.1837763/D1n or below, applying a second twist so that a K2 value has a value between 0.0166819/D2n and 0.3183099/D2n, and applying a third twist so that a K3 value has a value between 0.0278485/D3 and 0.2968288/D3, wherein the twists are applied so that the cord yarn has roundness of 50% or above, and when the filament is a multi filament, so that porosity between strands of the cord yarn is less than 40%.