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    • 6. 发明授权
    • Poly(ethyleneterephthalate) tire cord, and tire comprising the same
    • 聚(对苯二甲酸乙二醇酯)轮胎帘线,和包含该帘线的轮胎帘线
    • US09062394B2
    • 2015-06-23
    • US13003737
    • 2009-07-22
    • Ok-Hwa JeonIl ChungGi-Woong Kim
    • Ok-Hwa JeonIl ChungGi-Woong Kim
    • D02G3/00D02G3/48D01F6/62
    • D02G3/48D01F6/62D10B2331/04Y10S57/902Y10T152/10513
    • Disclosed is a PET tire cord which has a flat spot index (FSI) defined by the following Calculation Formula 1 of 5.0% or less: Flat Spot Index (FSI)(%)=(L1−L2)/L0×100  Calculation Formula 1 wherein, L0 is an initial length of the tire cord, L1 is a length of the tire cord that is measured after providing a load corresponding to 13% of the strength at break of the cord for 5 minutes at 120° C. and cooling the same to 24° C. while maintaining the load, and L2 is a length of the tire cord that is measured after providing a load corresponding to 13% of the strength at break of the cord for 5 minutes at 120° C. and cooling the same to 24° C. while remaining the load of 0.01 g/d only.
    • 公开了以下计算式1定义的平均光斑指数(FSI)为5.0%以下的PET轮胎帘线:平均光斑指数(FSI)(%)=(L1-L2)/ L0×100计算式1 其中,L0是轮胎帘线的初始长度,L 1是轮胎帘线的长度,其在120℃下提供相当于钢丝断裂强度的13%的负荷5分钟后测量,并冷却 在保持负荷的同时至24℃,L2是轮胎帘线的长度,其在120℃下提供相当于帘线断裂强度的13%的负载5分钟后测量,并冷却 相同于24℃,同时仅保留0.01g / d的负载。