专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3101161A1 LIQUID CRYSTAL POLYESTER FIBERS, AND PRODUCTION METHOD THEREFOR 审中-公开
标题翻译：赫尔辛基广播公司
公开(公告)号：EP3101161A1
公开(公告)日：2016-12-07
申请号：EP15742762.6
申请日：2015-01-21
申请人： Toray Industries, Inc.
发明人： FUNATSU Yoshitsugu , MASUDA Masato , KAWAMATA Chieko
IPC分类号： D01F6/84 , D01F6/62
CPC分类号： D01F6/62 , D01D5/08 , D01F6/84 , D10B2331/04
摘要： Provided is a liquid crystal polyester fiber having high strength, high elastic modulus, high abrasion resistance, excellent processability, and little thermal deformation at high temperature, and also provided is a production method thereof. A liquid crystal polyester fiber, characterized in that the peak half-value width of the endothermic peak (Tm1) observed when measuring by differential calorimetry under rising temperature conditions starting at 50°C and increasing 20°C/min is 15°C or higher, the polystyrene-converted weight-average molecular weight is between 250,000 and 2,000,000 inclusive, the peak temperature of the loss tangent (tanδ) is between 100°C and 200°C inclusive, and the peak value of the loss tangent (tanδ) is between 0.060 and 0.090 inclusive. A mesh fabric comprising the liquid crystal polyester fiber. A production method for melt liquid crystal polyester fiber, characterized in that liquid crystal polyester fiber obtained by melt-spinning is subject to solid-phase polymerization, and subsequently heat treated at a stretch ratio of at least 0.1% and under 3.0% at a temperature at least 50°C higher than the endothermic peak temperature (Tm1) as observed when measuring by differential calorimetry under rising temperature conditions starting at 50°C and increasing 20°C/min.
摘要翻译：本发明提供高强度，高弹性模量，高耐磨性，优异的加工性，高温下的热变形少的液晶聚酯纤维。一种液晶聚酯纤维，其特征在于，在从50℃开始升高20℃/分钟的上升温度条件下通过差示量热法测定时观察到的吸热峰（Tm1）的峰值半值宽度为15℃以上，聚苯乙烯换算的重均分子量在250,000和2,000,000之间，损耗角正切（tan'）的峰值温度在100℃和200℃之间，损耗角正切（tan'）的峰值）在0.060和0.090之间。包含液晶聚酯纤维的网状织物。熔融液晶聚酯纤维的制造方法，其特征在于，将通过熔融纺丝得到的液晶聚酯纤维进行固相聚合，然后在温度为0.1％以上且3.0％以下的拉伸倍率进行热处理比起在50℃开始升高20℃/分钟的上升温度条件下通过差示量热法测得的吸热峰温度（Tm1）高至少50℃。

2. 发明公开

EP3744888A1 SPUNBONDED NONWOVEN FABRIC 审中-公开
公开(公告)号：EP3744888A1
公开(公告)日：2020-12-02
申请号：EP19743580.3
申请日：2019-01-23
申请人： Toray Industries, Inc.
发明人： NISHIGUCHI Yuka , KATSUTA Hiroo , FUNATSU Yoshitsugu , ARANISHI Yoshitaka , KAJIWARA Kentaro
IPC分类号： D04H3/14 , D01F6/92 , D04H3/011
摘要： This nonwoven fabric is a spunbonded nonwoven fabric composed of monocomponent fibers comprising a copolyester resin derived by copolymerizing a polyester resin with 5-40 wt.% polyethylene glycol, characterized in that the ΔMR of the spunbonded nonwoven fabric is 0.5% to 15% inclusive.

3. 发明授权

EP2407583B1 LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：液晶聚酯及其制造方法
公开(公告)号：EP2407583B1
公开(公告)日：2013-10-09
申请号：EP10750740.2
申请日：2010-03-04
申请人： Toray Industries, Inc.
发明人： FUNATSU Yoshitsugu , MAEDA Yuhei , SUZUKI Norio , KATSUTA Hiroo
IPC分类号： D01D10/02 , D01F6/62 , D01F6/84 , D02J13/00 , D06M15/643
CPC分类号： D06M15/643 , C09K19/3809 , D01D10/02 , D01F6/62 , D01F6/84 , D02J13/00 , Y10T428/298 , Y10T442/183

4. 发明公开

EP2407583A1 LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING THE SAME 有权
标题翻译： R R R R R R R R R R R R R R R R R R R
公开(公告)号：EP2407583A1
公开(公告)日：2012-01-18
申请号：EP10750740.2
申请日：2010-03-04
申请人： Toray Industries, Inc.
发明人： FUNATSU Yoshitsugu , MAEDA Yuhei , SUZUKI Norio , KATSUTA Hiroo
IPC分类号： D02J13/00 , D01F6/62 , D06M15/643
CPC分类号： D06M15/643 , C09K19/3809 , D01D10/02 , D01F6/62 , D01F6/84 , D02J13/00 , Y10T428/298 , Y10T442/183
摘要： Disclosed are liquid crystal polyester fibers, which have a peak half-width of 15°C or greater at an endothermic peak (Tm1) observed by differential calorimetry under a temperature elevation of 20°C/minute from 50°C, polystyrene equivalent weight average molecular weight of 250,000 or more and 2,000,000 or less, and a variable waveform of less than 10% in terms of the half inert diagram mass waveform determined by a Uster yarn irregularity tester. Also disclosed is a method for producing liquid crystal polyester fibers, wherein liquid crystal polyester fibers are formed into a package, the fibers are then subjected to solid-phase polymerization, and the solid-phase polymerized liquid crystal polyester fibers are unrolled from the package and successively heat treated without being once taken up. The heat treatment temperature is controlled at a temperature of the endothermic peak temperature (Tm1) of the solid-phase polymerized liquid crystal polyester fibers + 60°C or higher, and the speeds of the fibers before and after heat treatment are regulated, respectively, by first and second rollers.
摘要翻译：公开了在50℃的温度升高20℃/分钟下通过差示量热法观察到的吸热峰（Tm1）的峰值半宽度为15℃以上的液晶聚酯纤维，聚苯乙烯换算重量平均值分子量为25万以上且2,000,000以下，以及由乌斯特纱线不均匀性测定仪确定的半惰性图质量波形的小于10％的可变波形。还公开了一种液晶聚酯纤维的制造方法，其中将液晶聚酯纤维形成包装，然后将纤维进行固相聚合，并将固相聚合的液晶聚酯纤维从包装上展开，连续热处理而不被一次吸收。将热处理温度控制在固相聚合液晶聚酯纤维的吸热峰温度（Tm1）+ 60℃以上的温度下，分别调节热处理前后的纤维速度，通过第一和第二辊。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式