- 专利标题: Method for manufacturing wholly aromatic liquid-crystalline polyester fiber with enhanced spinnability
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申请号: US16771257申请日: 2019-11-18
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公开(公告)号: US11525192B2公开(公告)日: 2022-12-13
- 发明人: Sun Hwa Jang , Tae-Young Ha , Sung-Eun Kim , Youn Eung Lee
- 申请人: SEYANG POLYMER
- 申请人地址: KR Incheon
- 专利权人: SEYANG POLYMER
- 当前专利权人: SEYANG POLYMER
- 当前专利权人地址: KR Incheon
- 代理机构: Goldilocks Zone IP Law
- 优先权: KR10-2018-0150266 20181129
- 国际申请: PCT/KR2019/015774 WO 20191118
- 国际公布: WO2020/111619 WO 20200604
- 主分类号: D01F6/62
- IPC分类号: D01F6/62 ; C08G63/183 ; C08G63/195 ; C08G63/80 ; D01D5/08 ; D01D10/02 ; D01F6/84
摘要:
The present invention relates to a method for manufacturing a wholly aromatic liquid-crystalline polyester fiber with enhanced spinnability, and more specifically, to a method for manufacturing a wholly aromatic liquid-crystalline polyester fiber including: pelletizing a resin manufactured by adding 1.08 equivalents to 1.12 equivalents of acetic anhydride to raw material monomers including hydroxy benzoic acid, hydroxy naphthoic acid, biphenol, terephthalic acid, and isophthalic acid, followed by solid-phase polycondensation, and melt-spinning under oil conditions in which winding-up improving oil is diluted to 0.5% to 2% and silicone spinning oil for high temperature is diluted to 0.5% to 2%, respectively, with water as a solvent.