| 发明名称 | Method for manufacturing poly(ethyleneterephthalate) drawn fiber, poly(ethyleneterephthalate) drawn fiber and tire-cord | ||
| 摘要 | Disclosed are a method for manufacturing a drawn fiber, which is suitable for manufacturing a poly(ethylene terephthalate) drawn fiber showing superior strength and dimensional stability and having a high fineness of 2000 denier or more without breakage or reduction in physical properties during the manufacturing process, and a poly(ethylene terephthalate) drawn fiber and a tire-cord obtained therefrom. | ||
| 申请公布号 | US9328434(B2) | 申请公布日期 | 2016.05.03 |
| 申请号 | US201214233438 | 申请日期 | 2012.09.25 |
| 申请人 | KOLON INDUSTRIES, INC. | 发明人 | Park Sung-Ho;Chung Il;Kim Gi-Woong |
| 分类号 | D01D5/08;D02G3/48;D02J1/22;D01F6/60;D01D5/12;D01F6/62;B60C9/00;D01D5/098;D01D10/02 | 主分类号 | D01D5/08 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. A method for manufacturing a poly(ethylene terephthalate) drawn fiber, comprising the steps of: adding a polyamide-based resin to a polymer including 90 mol % or more of poly(ethylene terephthalate), wherein the polyamide-base resin is added in an amount of 0.1 to 2.0 wt % based on the weight of the poly(ethylene terephthalate); melt-spinning the polyamide-based resin-added polymer mixture through a spinneret at a speed of 2500 to 4000 m/min in a three- or four-ply spinning manner so as to produce an undrawn fiber having a fineness of 2000 denier or more; and drawing the undrawn fiber with a drawing ratio of 1.4 to 2.4, wherein the polymer including 90 mol % or more of poly(ethylene terephthalate) has an intrinsic viscosity of 0.8 to 1.5, and wherein the polyamide-based resin includes nylon 6 or nylon 66. | ||
| 地址 | Gwacheon-si KR | ||