公开(公告)号：US11255032B2

公开(公告)日：2022-02-22

申请号：US16449889

申请日：2019-06-24

申请人： KURARAY CO., LTD.

发明人： Akihiro Uehata ,  Hayato Hohman ,  Satoshi Koizumi

IPC分类号： D04H1/55 ,  D01F6/92 ,  D04H1/732 ,  D21H13/24

摘要： The problem to be solved by the present invention is to provide a polyester binder fiber having a low crystallization temperature and exhibiting improved adhesiveness and a fiber structure including the polyester binder fiber. The polyester binder fiber according to the present invention includes a polyester polymer and an amorphous polyether imide polymer in a proportion of 0.1 to 5.0 mass % (based on the mass of the polyester polymer), and the polyester binder fiber has a crystallization temperature measured by differential calorimetry in a range of 100° C. or higher and 250° C. or lower.

公开(公告)号：US10683589B2

公开(公告)日：2020-06-16

申请号：US15468151

申请日：2017-03-24

申请人： KURARAY CO., LTD.

发明人： Tetsuya Okamoto ,  Akihiro Uehata ,  Satoshi Katsuya

IPC分类号： D01F6/78 ,  D04H1/4326 ,  D04H1/46 ,  D01F1/04 ,  D01F6/74 ,  D01D1/02 ,  D01D5/08

摘要： Provided is a polyetherimide-based fiber containing a polyetherimide resin and carbon black dispersed in the resin, wherein the content of the carbon black is 0.03 wt % or greater; the carbon black has a primary particle number-mean particle size of from 30 nm to 500 nm; and the fiber has a weight reduction rate of less than 0.5% around the glass transition point (Tg) of the polyetherimide resin, where the weight reduction rate is defined by a following formula (1). Weight reduction rate (%)={[(fiber weight at temperature T1)−(fiber weight at temperature T2)]/(fiber weight at temperature T1)}×100  (1) Where T1 denotes a temperature (Tg−15° C.) that is 15° C. lower than the glass transition point (glass transition temperature) of the polyetherimide resin, and T2 denotes a temperature (Tg+25° C.) that is 25° C. higher than the glass transition point.

公开(公告)号：US09518341B2

公开(公告)日：2016-12-13

申请号：US14539657

申请日：2014-11-12

申请人： KURARAY CO., LTD.

发明人： Ryokei Endo ,  Yosuke Washitake ,  Yukie Sugihara ,  Akihiro Uehata

IPC分类号： D01D1/00 ,  D01D7/00 ,  D01F1/02 ,  D01F1/10 ,  D01D5/08 ,  D01F6/74 ,  D01F6/66

CPC分类号： D01D5/08 ,  D01F6/66 ,  D01F6/74 ,  D10B2331/06 ,  Y10T428/2913

摘要： Provided are an amorphous polyetherimide fiber having not only a small single fiber fineness suitable for producing fabrics, and a fabric comprising the amorphous polyetherimide fiber. The fiber comprises an amorphous polyetherimide polymer having a molecular weight distribution (Mw/Mn) of less than 2.5, and having a shrinkage percentage under dry heat at 200° C. of 5% or less, and a single fiber fineness of 3.0 dtex or less. The fiber may have a tenacity at room temperature of 2.0 cN/dtex or greater.

摘要翻译： 本发明提供一种无定形聚醚酰亚胺纤维，其不仅具有适合于生产织物的单一纤维细度，还包含无定形聚醚酰亚胺纤维的织物。 纤维包含分子量分布（Mw / Mn）小于2.5，在200℃干热下的收缩率为5％以下，单纤维纤度为3.0dtex的无定形聚醚酰亚胺聚合物， 减。 纤维在室温下可以具有2.0cN / dtex以上的强度。

公开(公告)号：US09982368B2

公开(公告)日：2018-05-29

申请号：US14798994

申请日：2015-07-14

申请人： KURARAY CO., LTD.

发明人： Akihiro Uehata ,  Tetsuya Okamoto ,  Takayuki Ikeda

IPC分类号： D01F6/62 ,  C08J5/04 ,  D01D5/08 ,  D01F6/74 ,  D01F6/94 ,  D01F1/04 ,  D01F1/10 ,  D01F1/06

CPC分类号： D01F6/62 ,  C08J5/04 ,  C08J2367/03 ,  C08J2379/08 ,  C08J2467/03 ,  C08J2479/08 ,  D01D5/08 ,  D01F1/04 ,  D01F1/06 ,  D01F1/106 ,  D01F6/74 ,  D01F6/94 ,  Y10T428/249921

摘要： Provided is a flame-retardant fiber having improved light resistance and/or colorability. The flame-retardant fiber is a fiber including a fiber-forming polymer. The fiber-forming polymer contains a polymer blend comprising a polyetherimide polymer (A) and a thermoplastic polymer (B) having a glass transition temperature lower than that of the polymer (A); and the fiber-forming polymer further contains a functional additive (C) that provides light resistance, colorability, or both of light resistance and colorability. The mass ratio (A)/(B) of the polymer (A) to the polymer (B) is from 50/50 to 90/10, and the content of the functional additive (C) is from 0.5 to 10% by mass relative to 100% by mass of the total mass (A+B+C) of the polymer (A), the thermoplastic polymer (B), and the functional additive (C).

公开(公告)号：US20150069654A1

公开(公告)日：2015-03-12

申请号：US14539657

申请日：2014-11-12

申请人： KURARAY CO., LTD.

发明人： Ryokei Endo ,  Yosuke Washitake ,  Yukie Sugihara ,  Akihiro Uehata

IPC分类号： D01D5/08 ,  D01F6/66

CPC分类号： D01D5/08 ,  D01F6/66 ,  D01F6/74 ,  D10B2331/06 ,  Y10T428/2913

摘要： Provided are an amorphous polyetherimide fiber having not only a small single fiber fineness suitable for producing fabrics, and a fabric comprising the amorphous polyetherimide fiber. The fiber comprises an amorphous polyetherimide polymer having a molecular weight distribution (Mw/Mn) of less than 2.5, and having a shrinkage percentage under dry heat at 200° C. of 5% or less, and a single fiber fineness of 3.0 dtex or less. The fiber may have a tenacity at room temperature of 2.0 cN/dtex or greater.

摘要翻译： 本发明提供一种无定形聚醚酰亚胺纤维，其不仅具有适合于生产织物的单一纤维细度，还包含无定形聚醚酰亚胺纤维的织物。 纤维包含分子量分布（Mw / Mn）小于2.5，在200℃干热下的收缩率为5％以下，单纤维纤度为3.0dtex的无定形聚醚酰亚胺聚合物， 减。 纤维在室温下可以具有2.0cN / dtex以上的强度。