公开(公告)号：US20150167199A1

公开(公告)日：2015-06-18

申请号：US14634125

申请日：2015-02-27

Applicant: KURARAY CO., LTD.

Inventor： Ryokei ENDO ,  Yosuke WASHITAKE ,  Jun ARAMAKI

IPC: D01F6/84 ,  D01F6/74

CPC classification number: D01F6/84 ,  B29C43/003 ,  C08L67/02 ,  C08L79/08 ,  D01F6/74 ,  D01F6/92 ,  D01F6/94 ,  D04H1/55 ,  D10B2331/04 ,  D10B2331/14 ,  D10B2401/04

Abstract: Provided are a heat-fusible fiber having excellent heat resistance, flame retardancy and dimensional stability; a fiber structure comprising the heat-fusible fiber; and a molded article produced by applying a heat fusion treatment to the fiber structure and having excellent heat resistance. The heat-fusible fiber comprises an amorphous PES type polymer (A) not substantially having a melting point and an amorphous PEI type polymer (B) in the mixture ratio (weight) of (A)/(B)=5/95 to 95/5, the fiber having a single glass transition temperature in the range between 80° C. and 200° C., and being amorphous. The fiber structure comprises 10% by weight or higher of the amorphous heat-fusible fiber. The molded article comprises at least a fiber structure comprising 10% by weight or higher of the amorphous heat-fusible fiber, to be fusion-bonded at a temperature higher than the glass transition temperature of the amorphous heat-fusible fiber.

Abstract translation: 提供具有优异的耐热性，阻燃性和尺寸稳定性的热熔纤维; 包括所述热熔纤维的纤维结构; 以及通过对纤维结构进行热熔融处理并具有优异的耐热性而制造的成型品。 热熔融纤维包含基本上不具有熔点的无定形PES型聚合物（A）和（A）/（B）= 5/95〜95的混合比（重量）的无定形PEI型聚合物（B） / 5，纤维的单一玻璃化转变温度在80℃和200℃之间的范围内，并且是无定形的。 纤维结构体包含10重量％以上的非晶态热熔纤维。 成型体至少含有10重量％以上的无定形热熔性纤维的纤维结构体，其在比非晶态热熔融纤维的玻璃化转变温度高的温度下熔合。

公开(公告)号：US20230044329A1

公开(公告)日：2023-02-09

申请号：US17788764

申请日：2020-11-16

Applicant: KURARAY CO., LTD.

Inventor： Toshimichi KUSUNOKI ,  Tomohiro HAYAKAWA ,  Hiroyuki KAWAI ,  Jun ARAMAKI

IPC: H01G11/52 ,  H01G9/02

Abstract: The present invention relates to a separator for electrochemical elements, the separator comprising synthetic fibers and beaten cellulose fibers, wherein the beaten cellulose fibers have a Canadian standard freeness measured in accordance with JIS P 8121 of 50 ml or more and 500 ml or less, and in a fiber diameter distribution histogram of the beaten cellulose fibers, (1) the fibers have a maximum frequency peak in a range of 50 μm or less, and (2) a ratio of the fibers having a fiber diameter of 20 μm or less is 55% or more.

公开(公告)号：US20170203245A1

公开(公告)日：2017-07-20

申请号：US15477385

申请日：2017-04-03

Applicant: KURARAY CO., LTD.

Inventor： Takayoshi HOSOYA ,  Hiroyuki KAWAI ,  Tomohiro HAYAKAWA ,  Jun ARAMAKI

IPC: B01D39/16 ,  C02F1/00 ,  B32B5/26 ,  B32B5/02 ,  D01F6/14 ,  D04H3/007 ,  D04H3/03 ,  D04H3/16 ,  D01D5/00 ,  B01D29/66 ,  B32B3/28

CPC classification number: B01D39/1623 ,  B01D29/66 ,  B01D2239/025 ,  B01D2239/0421 ,  B01D2239/0631 ,  B01D2239/0654 ,  B01D2239/1291 ,  B32B3/28 ,  B32B5/022 ,  B32B5/26 ,  B32B2250/20 ,  B32B2262/0223 ,  B32B2307/718 ,  B32B2307/726 ,  C02F1/001 ,  C02F2201/006 ,  C02F2209/03 ,  C02F2303/16 ,  D01D5/0007 ,  D01F6/14 ,  D04H1/728 ,  D04H3/007 ,  D04H3/02 ,  D04H3/03 ,  D04H3/16 ,  D04H13/00 ,  D10B2505/04

Abstract: The present invention provides a filtering material for filtering water having high collection efficiency and long filtering life, and a water filtering apparatus including the material. The present filtering material includes a laminated sheet in which a nanofiber layer formed from a nanofiber having a single fiber average diameter of 10 to 1000 nm and meeting all the following conditions and a base material including a nonwoven or woven fabric containing a hydrophilic fiber having a single fiber average diameter of not less than 1 μm. Further, the present water filtering apparatus is configured by including the filtering material for filtering water. (1) The nanofiber layer has a basis weight of 0.1 to 10 g/m2. (2) The nanofiber is a continuous long fiber. (3) The nanofiber contains at least an ethylene-vinyl alcohol copolymer.