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1. 发明申请

US20140213135A1 EXTRA-FINE FIBER SHEET 审中-公开
标题翻译：超细纤维片
公开(公告)号：US20140213135A1
公开(公告)日：2014-07-31
申请号：US14227557
申请日：2014-03-27
申请人： KURARAY CO., LTD.
发明人： Takayoshi HOSOYA , Tomohiro HAYAKAWA
IPC分类号： D04H3/016
CPC分类号： D04H3/016 , D04H1/4382 , D04H1/728 , Y10T442/615
摘要： Provided is an extra-fine fiber sheet including an extra-fine fiber assembly including extra-fine fibers having an average fiber diameter of 500 nm or smaller. The extra-fine fiber sheet includes an extra-fine fiber assembly. The assembly includes a solvent-spinnable polymer (A) having a weight average molecular weight of 5,000 to 100,000 as a main component and a polymer (B) having a weight average molecular weight equal to or more than 10 times as large as that of the polymer (A) as an accessory component; and the assembly includes constituent fibers having an average fiber diameter of 10 to 500 nm. The polymer (A) may be a non-conductive polymer, and the polymer (B) may be a thickening polymer.
摘要翻译：提供了一种超细纤维片材，其包括具有平均纤维直径为500nm以下的超细纤维的超细纤维集合体。超细纤维片包括超细纤维组件。组合物包含重均分子量为5,000〜100,000的溶剂可纺性聚合物（A）作为主要成分，重均分子量等于或大于10重量％的聚合物（B）聚合物（A）作为辅助成分; 并且该组件包括平均纤维直径为10至500nm的构成纤维。聚合物（A）可以是非导电聚合物，聚合物（B）可以是增稠聚合物。

2. 发明申请

US20170203245A1 WATER FILTER APPARATUS AND METHOD OF FILTERING FINE PARTICLES FROM WATER 审中-公开
公开(公告)号：US20170203245A1
公开(公告)日：2017-07-20
申请号：US15477385
申请日：2017-04-03
申请人： KURARAY CO., LTD.
发明人： Takayoshi HOSOYA , Hiroyuki KAWAI , Tomohiro HAYAKAWA , Jun ARAMAKI
IPC分类号： B01D39/16 , C02F1/00 , B32B5/26 , B32B5/02 , D01F6/14 , D04H3/007 , D04H3/03 , D04H3/16 , D01D5/00 , B01D29/66 , B32B3/28
CPC分类号： 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
摘要： 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.

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