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1. 发明授权

EP2659955B1 METHOD FOR PRODUCING A WET-LAID NONWOVEN FABRIC FOR SEMIPERMEABLE MEMBRANE SUPPORTING BODY, AND METHOD FOR IDENTIFYING LOW-DENSITY DEFECT OF WET-LAID NONWOVEN FABRIC 有权转让
标题翻译：生产用于半透膜支撑体的湿热无纺织物的方法以及用于识别湿面非织造织物的低密度缺陷的方法
公开(公告)号：EP2659955B1
公开(公告)日：2018-03-21
申请号：EP11854090.5
申请日：2011-12-22
申请人： Hokuetsu Kishu Paper Co., Ltd.
发明人： SOYAMA, Toshihiko , SAKADUME, Nobuyuki , NEMOTO, Junji
IPC分类号： B01D69/10 , B01D65/10 , D04H1/541 , D04H1/732 , D21H13/10 , D21H13/24 , D21H25/04 , D21H17/67 , D21H17/53 , D21H13/40 , D04H1/55
CPC分类号： D04H1/732 , B01D69/105 , D04H1/04 , D04H1/26 , D04H1/4218 , D04H1/541 , D04H1/55 , D21H13/10 , D21H13/24 , D21H13/40 , D21H17/53 , D21H17/67 , D21H25/04 , Y10T442/60
摘要： Provided is a uniform semipermeable membrane supporting body which does not cause any defect in the semipermeable membrane coating layer when a semipermeable membrane coating liquid is applied, and is free of low density defects. The wet-laid nonwoven fabric for a semipermeable membrane supporting body according to the present invention contains a synthetic fiber as a main constituent fiber, has been subjected to hot press processing, has a pressure loss at a face velocity of 5.2 cm/second of from 50 Pa to 3000 Pa and a sheet density of 0.5 g/cm 3 or greater, and satisfies the evaluation criterion of condition 1 or condition 2: (Condition 1) Spots are not observed when solid printing is carried out with a printing ink over the entire surface of one surface of the wet-laid nonwoven fabric for a semipermeable membrane supporting body (rolled product, cut to a length of 1800 mm in the length direction); and (Condition 2) When a wet-laid nonwoven fabric for a semipermeable membrane supporting body that has been cut to a size of 210 mm x 297 mm is subjected to solid printing over the entire surface of one surface with a printing ink, is used as a sample, spots are not observed in 95% or more of the samples among such samples thus extracted.

2. 发明授权

EP2987544B1 FILTER MATERIAL FOR AIR FILTER, METHOD FOR MANUFACTURING SAME, AND AIR FILTER PROVIDED WITH SAME 有权转让
标题翻译：用于空气过滤器的过滤材料，用于制造该空气过滤器的方法以及提供有该空气过滤器的空气过滤器
公开(公告)号：EP2987544B1
公开(公告)日：2017-12-27
申请号：EP14785326.1
申请日：2014-01-30
申请人： Hokuetsu Kishu Paper Co., Ltd.
发明人： SATO, Masashi , YAMAMOTO, Hiroyuki , MEGURO, Eiko , NEMOTO, Junji , SOYAMA, Toshihiko
IPC分类号： B01D39/20 , D04H1/4218 , D04H1/542 , D21H13/10 , D21H13/40 , F24F7/00
CPC分类号： B01D39/2024 , B01D2239/086 , B01D2239/1233 , D04H1/4218 , D04H1/542 , D21H13/24 , D21H13/40 , D21H15/02 , D21H17/09 , D21H17/53 , F24F2003/1614 , Y02A50/21
摘要： The present invention is to provide a filter media for an air filter having a PF value higher than ever, and an air filter provided with the same. The filter media for an air filter according to the present invention is composed of wet-laid nonwoven fabric containing a glass fiber having an average fiber diameter of less than 1 µm, and a binder fiber, and is characterized in that the wet-laid nonwoven fabric contains a fluorine resin and a surfactant, and does not contain a resin binder or contains a binder resin in an amount of 50% by mass or less based on the fluorine resin.

3. 发明公开

EP2857583A1 POROUS CELLULOSE BODY AND METHOD FOR PRODUCING SAME 有权转让
标题翻译：多孔纤维体和方法及其生产
公开(公告)号：EP2857583A1
公开(公告)日：2015-04-08
申请号：EP13800396.7
申请日：2013-05-15
申请人： Hokuetsu Kishu Paper Co., Ltd. , The University of Tokyo
发明人： NEMOTO, Junji , SOYAMA, Toshihiko , ISOGAI, Akira , SAITO, Tsuguyuki
IPC分类号： D21H11/20 , C08B15/04
CPC分类号： C08J9/28 , C08B15/04 , C08J2201/0484 , C08J2301/02 , C08L1/02 , D21H11/20 , F26B5/06 , Y10T428/249965
摘要： An object of the present invention is to provide a porous body that contains cellulose nanofibers having very thin fiber diameters and high hydrophilicity, and has a large specific surface area, and to provide a method of producing the porous body simply with low cost. The method of producing a porous cellulose body pertinent to the present invention is a method of producing a porous cellulose body, the method comprising a process of lyophilizing a mixed liquid containing cellulose nanofibers and a dispersion medium, wherein the dispersion medium is a mixed dispersion medium of water and an organic solvent dissolving in water, a concentration of the organic solvent in the mixed dispersion medium is 2 to 40 mass%, and a solid content concentration of the cellulose nanofibers in the mixed liquid is 0.001 to 5 mass%.

4. 发明授权

EP2810702B1 NON-WOVEN FABRIC FOR SEMIPERMEABLE MEMBRANE SUPPORT 有权转让
标题翻译：非织造的半渗透膜的支持
公开(公告)号：EP2810702B1
公开(公告)日：2017-04-12
申请号：EP13743165.6
申请日：2013-01-29
申请人： Hokuetsu Kishu Paper Co., Ltd.
发明人： SOYAMA, Toshihiko , NEMOTO, Junji , HAMABE, Hisashi
IPC分类号： B01D69/10 , B01D71/48 , D04H1/435 , D04H1/542 , D21H13/24 , D04H1/64 , B32B5/02 , B32B27/12 , D04H1/44 , D21H25/04
CPC分类号： B01D69/10 , B32B5/022 , B32B27/12 , B32B2255/02 , B32B2262/0276 , B32B2307/726 , B32B2307/7265 , D04H1/435 , D04H1/44 , D04H1/542 , D04H1/64 , D21H13/24 , Y10T442/2861

5. 发明公开

EP3332856A1 METHOD FOR MANUFACTURING FILTER MEDIUM FOR AIR FILTER 有权转让
公开(公告)号：EP3332856A1
公开(公告)日：2018-06-13
申请号：EP15900365.6
申请日：2015-08-03
申请人： Hokuetsu Kishu Paper Co., Ltd. , The University Of Tokyo
发明人： NEMOTO, Junji , ISOGAI, Akira , SAITO, Tsuguyuki
IPC分类号： B01D39/00 , B01D39/16 , C08J9/36 , D21H15/02
CPC分类号： B01D39/18 , B01D39/00 , B01D39/16 , B01D46/0001 , B01D2239/025 , B01D2239/1233 , C08J9/36 , D21F5/00 , D21H15/02
摘要： An object of the present invention is to provide a method for manufacturing a filter medium for an air filter having improved particle collection performance using cellulose nanofibers. The method for manufacturing a filter medium for an air filter according to the present invention is a method for manufacturing a filter medium for an air filter, including: causing a mixed solution containing cellulose nanofibers and a dispersion medium to adhere to an air-permeable support; and subsequently freeze-drying the resulting product, in which a number average fiber diameter of the cellulose nanofibers is 1 to 50 nm, the dispersion medium is a mixed dispersion medium of water and a water-soluble organic solvent, and a solid content concentration of the cellulose nanofibers in the mixed solution is 0.001 to 0.150% by mass.

6. 发明公开

EP2810702A1 NON-WOVEN FABRIC FOR SEMIPERMEABLE MEMBRANE SUPPORT 有权转让
标题翻译：非织造的半渗透膜的支持
公开(公告)号：EP2810702A1
公开(公告)日：2014-12-10
申请号：EP13743165.6
申请日：2013-01-29
申请人： Hokuetsu Kishu Paper Co., Ltd.
发明人： SOYAMA, Toshihiko , NEMOTO, Junji , HAMABE, Hisashi
IPC分类号： B01D69/10 , B01D71/48 , D04H1/435 , D04H1/542 , D21H13/24
CPC分类号： B01D69/10 , B32B5/022 , B32B27/12 , B32B2255/02 , B32B2262/0276 , B32B2307/726 , B32B2307/7265 , D04H1/435 , D04H1/44 , D04H1/542 , D04H1/64 , D21H13/24 , Y10T442/2861
摘要： Provided is a non-woven fabric for semipermeable membrane support, in which adhesiveness of a semipermeable membrane to a support is satisfactory, the thickness uniformity of the semipermeable membrane is satisfactory, and permeation-through of a coating liquid does not occur. Disclosed is a non-woven fabric for semipermeable membrane support containing organic synthetic fibers as a primary component, wherein a semipermeable membrane is to be supported by one surface of the non-woven fabric, wherein the coated surface to be coated with the semipermeable membrane and the non-coated surface that is opposite to the coated surface of the non-woven fabric both have a Bekk smoothness of 5 seconds or more, and the non-woven fabric has an internal bond strength in the sheet transverse direction in the range from 0.4 to 0.8 N·m.

7. 发明授权

EP2857583B1 POROUS CELLULOSE BODY AND METHOD FOR PRODUCING SAME 有权转让
标题翻译：多孔纤维素体及其制造方法
公开(公告)号：EP2857583B1
公开(公告)日：2017-12-20
申请号：EP13800396.7
申请日：2013-05-15
申请人： Hokuetsu Kishu Paper Co., Ltd. , The University of Tokyo
发明人： NEMOTO, Junji , SOYAMA, Toshihiko , ISOGAI, Akira , SAITO, Tsuguyuki
IPC分类号： D21H11/20 , C08B15/04
CPC分类号： C08J9/28 , C08B15/04 , C08J2201/0484 , C08J2301/02 , C08L1/02 , D21H11/20 , F26B5/06 , Y10T428/249965
摘要： An object of the present invention is to provide a porous body that contains cellulose nanofibers having very thin fiber diameters and high hydrophilicity, and has a large specific surface area, and to provide a method of producing the porous body simply with low cost. The method of producing a porous cellulose body pertinent to the present invention is a method of producing a porous cellulose body, the method comprising a process of lyophilizing a mixed liquid containing cellulose nanofibers and a dispersion medium, wherein the dispersion medium is a mixed dispersion medium of water and an organic solvent dissolving in water, a concentration of the organic solvent in the mixed dispersion medium is 2 to 40 mass%, and a solid content concentration of the cellulose nanofibers in the mixed liquid is 0.001 to 5 mass%.

8. 发明公开

EP2987544A1 FILTER MATERIAL FOR AIR FILTER, METHOD FOR MANUFACTURING SAME, AND AIR FILTER PROVIDED WITH SAME 有权转让
标题翻译：用于空气过滤器的过滤材料，用于制造该空气过滤器的方法以及提供有该空气过滤器的空气过滤器
公开(公告)号：EP2987544A1
公开(公告)日：2016-02-24
申请号：EP14785326.1
申请日：2014-01-30
申请人： Hokuetsu Kishu Paper Co., Ltd.
发明人： SATO, Masashi , YAMAMOTO, Hiroyuki , MEGURO, Eiko , NEMOTO, Junji , SOYAMA, Toshihiko
IPC分类号： B01D39/20 , D04H1/4218 , D04H1/542 , D21H13/10 , D21H13/40 , F24F7/00
CPC分类号： B01D39/2024 , B01D2239/086 , B01D2239/1233 , D04H1/4218 , D04H1/542 , D21H13/24 , D21H13/40 , D21H15/02 , D21H17/09 , D21H17/53 , F24F2003/1614 , Y02A50/21
摘要： The present invention is to provide a filter media for an air filter having a PF value higher than ever, and an air filter provided with the same. The filter media for an air filter according to the present invention is composed of wet-laid nonwoven fabric containing a glass fiber having an average fiber diameter of less than 1 µm, and a binder fiber, and is characterized in that the wet-laid nonwoven fabric contains a fluorine resin and a surfactant, and does not contain a resin binder or contains a binder resin in an amount of 50% by mass or less based on the fluorine resin.
摘要翻译：本发明提供一种PF值比以往更高的空气过滤器用过滤器滤材及具备其的空气过滤器。根据本发明的用于空气过滤器的过滤介质由包含平均纤维直径小于1μm的玻璃纤维和粘合剂纤维的湿式非织造织物构成，并且其特征在于湿式非织造织物织物含有氟树脂和表面活性剂，并且不含有树脂粘合剂或含有基于氟树脂的50质量％以下的粘合剂树脂。

9. 发明公开

EP2821125A1 NONWOVEN FABRIC FOR SEMIPERMEABLE MEMBRANE SUPPORTING BODY AND METHOD FOR MANUFACTURING SAME 有权转让
标题翻译： VLIESSTOFFFÜRSUBSTRATKÖRPERFÜRHALBDURCHLÄSSIGEMEMBRAN UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2821125A1
公开(公告)日：2015-01-07
申请号：EP13755422.6
申请日：2013-02-15
申请人： Hokuetsu Kishu Paper Co., Ltd.
发明人： SOYAMA, Toshihiko , NEMOTO, Junji , HAMABE, Hisashi
IPC分类号： B01D69/10 , B01D71/48 , D21H13/24
CPC分类号： B01D71/06 , B01D69/02 , B01D69/10 , B01D2325/00 , D04H1/435 , D04H1/55 , D04H1/558 , D04H1/64 , D10B2331/04 , D10B2505/04 , D21H13/24 , Y10T442/671
摘要： The present invention addresses the problem of providing a nonwoven fabric for semipermeable membrane supporting body, which gives fine MD curl when a semipermeable membrane coating liquid is coated on the supporting body (nonwoven fabric) and cured, and a method for producing the nonwoven fabric. The nonwoven fabric for semipermeable membrane supporting body according to the present invention is a nonwoven fabric containing organic synthetic fibers as a primary component, wherein a semipermeable membrane is to be supported by one surface of the nonwoven fabric, wherein when the nonwoven fabric on which a semipermeable membrane is to be coated is separated into a layer on the side of the semipermeable membrane-coated surface and a layer on the side of the non-semipermeable membrane-coated surface by delaminating the nonwoven fabric into two layers in the thickness direction, the layer on the side of the semipermeable membrane-coated surface is 35% by mass or more and 70% by mass or less with respect to the total of the layer on the side of the semipermeable membrane-coated surface and the layer on the side of the non-semipermeable membrane-coated surface.
摘要翻译：本发明解决了提供一种半透膜支撑体用无纺布的问题，在将半透膜涂布液涂布在支撑体（无纺布）上并使其固化时，能够得到良好的MD卷曲，以及无纺布的制造方法。本发明的半透膜支撑体用无纺布是以有机合成纤维为主要成分的无纺布，其中半透膜由无纺布的一个表面支承，其中，通过将无纺织物在厚度方向上分层成两层，将半透膜将被分离成半透膜涂覆面一侧的层和非半透膜涂层表面侧的层，半透膜涂层表面一侧的层相对于半透膜涂布面一侧的层的总计为35质量％以上且70质量％以下，非半透膜涂膜表面。

10. 发明公开

EP2816006A1 POROUS BODY AND PROCESS FOR MANUFACTURING SAME 有权转让
标题翻译： PORÖSERKÖRPERUND VERFAHREN ZUR HERSTELLUNG DAVON
公开(公告)号：EP2816006A1
公开(公告)日：2014-12-24
申请号：EP12868878.5
申请日：2012-02-15
申请人： Hokuetsu Kishu Paper Co., Ltd. , The University of Tokyo
发明人： NEMOTO, Junji , SOYAMA, Toshihiko , SAITO, Tsuguyuki , ISOGAI, Akira
IPC分类号： B82B1/00 , B01D39/18 , B01D69/10 , B01D71/10 , B82Y30/00
CPC分类号： B01D71/10 , B01D39/18 , B01D67/0002 , B01D67/0079 , B01D67/0095 , B01D69/12 , B01D71/022 , B01D71/04 , B01D2239/025 , B01D2239/0654 , B01D2239/1233 , B82Y30/00 , C08J9/0085 , C08J9/42 , C08J2301/00 , C08J2369/00 , D06M15/05
摘要： The object of the present invention is to provide a porous body having fluid permeance, which contains cellulose-based nanofibers having an extremely thin fiber diameter and high hydrophilicity, and to manufacture a porous body at low cost. The porous body according to the present invention is a porous body in which nanofibers are entangled to form net-like structural bodies in pores of a porous support having many pores that are connecting with one another, wherein the nanofibers are cellulose-based nanofibers, and have a number average fiber diameter of from 1 to 100 nm.
摘要翻译：本发明的目的是提供一种具有流体渗透性的多孔体，其含有纤维直径极小且亲水性极高的纤维素类纳米纤维，并且以低成本制造多孔体。根据本发明的多孔体是多孔体，其中纳米纤维被缠结以形成网状结构体，所述多孔体具有彼此连接的许多孔的多孔载体的孔中，其中所述纳米纤维是基于纤维素的纳米纤维，以及数均纤维直径为1〜100nm。

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