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1.发明申请Polyester Tire Cord With Excellent Dimensional Stability And Method For Manufacturing The Same 有权具有优异尺寸稳定性的聚酯轮胎线及其制造方法公开(公告)号：US20160312388A1
公开(公告)日：2016-10-27
申请号：US15102115
申请日：2015-01-13
申请人： HYOSUNG CORPORATION
发明人： Si-Hwan Joo , Hong-Un Kim , Jin-Kyeong Park , Su-Yeon Hwang , Cheol Kim
摘要： The present invention relates to a polyester tire cord with excellent dimensional stability which utilizes a yarn manufactured by adjusting spinning and drawing conditions, and a method for manufacturing the same.
摘要翻译： 本发明涉及利用通过调节纺丝和拉伸条件制造的纱线的尺寸稳定性优异的聚酯轮胎帘线及其制造方法。
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2.发明授权公开(公告)号：US10017883B2
公开(公告)日：2018-07-10
申请号：US15102115
申请日：2015-01-13
申请人： HYOSUNG CORPORATION
发明人： Si-Hwan Joo , Hong-Un Kim , Jin-Kyeong Park , Su-Yeon Hwang , Cheol Kim
摘要： A polyester tire cord having improved dimensional stability and methods of manufacturing the polyester tire cord are provided. The method includes forming a discharge yarn, extruded while a polyester containing 85 mol % or more of ethylene terephthalate units is melted and passes through a nozzle; forming an undrawn yarn by spinning the discharged yarn; manufacturing a yarn by multistep drawing the undrawn yarn; plying the yarn by twisting; and dipping the plied yard in a dipping solution, and then drying, drawing, and heat-setting the plied yarn before dipping the plied yarn in resorcinol-formaldehyde latex and again drying an heat-setting the plied yarn. An intermediate elongation of the formed polyester tire cord after vulcanization for 20 minutes at 170° C. is E2, an intermediate elongation of the polyester tire cord before vulcanization is E1, and a difference between E2 and E1 is ΔE. ΔE divided by E1 is 0.5 or less.
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