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公开(公告)号：US12048891B2
公开(公告)日：2024-07-30
申请号：US17041502
申请日：2019-03-28
Applicant: Toray Industries, Inc.
Inventor： Yuji Yatsunami , Yasuhiro Asada , Yufuko Takaki
IPC: B01D46/00 , A61L9/014 , B01D39/16 , B01D46/10 , B01D53/44 , B01D53/72 , B01D53/81 , B01J21/08 , B01J31/02 , B01J35/00 , B01J35/50 , B01J35/58 , B01J37/02 , B32B5/02 , B32B5/16 , B32B5/30
CPC classification number: B01D46/0038 , A61L9/014 , B01D39/16 , B01D46/0001 , B01D46/0032 , B01D46/0036 , B01D46/10 , B01D53/44 , B01D53/72 , B01D53/81 , B01J21/08 , B01J31/0209 , B01J35/19 , B01J35/50 , B01J35/58 , B01J37/0215 , B32B5/022 , B32B5/16 , B32B5/30 , A61L2209/14 , A61L2209/22 , B01D2239/0407 , B01D2239/0435 , B01D2239/045 , B01D2239/0618 , B01D2239/065 , B01D2239/10 , B01D2239/1241 , B01D2253/304 , B01D2257/708 , B01D2275/10
Abstract: The challenge of the present invention is to provide a multilayer filter medium whose deodorizing performance after a long-term storage of the filter medium is suppressed from deteriorating and which is superior in deodorizing performance and exhibits low pressure drop. A multilayer filter medium includes three or more nonwoven fabric layers superposed together and has two or more interlayer regions each formed by two adjacent layers of the nonwoven fabric layers, in which a first interlayer region of the interlayer regions contains functional particles A having an average particle diameter of 50 to 100 μm, and a second interlayer region selected from the interlayer regions excluding the first interlayer region contains functional particles B having an average particle diameter of 150 to 500 μm.
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公开(公告)号：US20180056219A1
公开(公告)日：2018-03-01
申请号：US15561256
申请日：2016-03-25
Applicant: TORAY INDUSTRIES, INC.
Inventor： Jun Yoshida , Yasuhiro Asada , Kengo Miyoshi
IPC: B01D39/16 , C09J9/00 , C09J5/06 , C09J123/06 , B03C3/28 , B01D46/00 , B32B5/26 , B32B5/02 , B32B7/12 , B32B37/12 , D04H1/58 , D04H1/542
CPC classification number: B01D39/1607 , A61L9/16 , B01D46/0001 , B01D46/0032 , B01D2239/0407 , B01D2239/0435 , B01D2239/0457 , B01D2239/065 , B01D2239/086 , B01D2239/10 , B01D2239/1241 , B03C3/28 , B32B5/022 , B32B5/26 , B32B7/12 , B32B37/1207 , B32B2037/1238 , C09J5/06 , C09J9/00 , C09J123/06 , C09J2423/04 , D04H1/542 , D04H1/58
Abstract: An object of the present invention is to provide an air filter medium which includes heat-expandable particles that, even when contained in a small amount, impart excellent flame retardancy to the air filter medium and which has excellent flame retardancy and a low pressure loss. The present invention provides an air filter medium including: a plurality of stacked fibrous sheets; and heat-expandable particles and a binder disposed in at least one of interlaminar spaces between adjacent layers of the fibrous sheets.
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公开(公告)号：US20230390734A1
公开(公告)日：2023-12-07
申请号：US18033593
申请日：2021-10-26
Applicant: Toray Industries, Inc.
Inventor： Toshiki Hayashi , Yasuhiro Asada , Kengo Miyoshi
CPC classification number: B01J20/22 , B01J20/10 , B01J20/28035 , B01J20/3204 , B01J20/3251 , B01D46/0001 , B01D2275/10 , B01D2275/30
Abstract: An object of the present invention is to provide an adsorbent, a filter medium, and an air filter that have good aldehyde removal performance that undergoes little deterioration over time, where the adsorbent is one in which an inorganic porous medium supports at least an amine-based compound and a compound having a sulfide group as a functional group.
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公开(公告)号：US20210046410A1
公开(公告)日：2021-02-18
申请号：US17041502
申请日：2019-03-28
Applicant: Toray Industries, Inc.
Inventor： Yuji Yatsunami , Yasuhiro Asada , Yufuko Takaki
IPC: B01D46/00 , B01D46/10 , B01D39/16 , B01D53/44 , B01D53/72 , B01D53/81 , B32B5/02 , B32B5/16 , B32B5/30 , B01J21/08 , B01J31/02 , B01J35/06 , B01J35/00 , B01J35/02 , B01J37/02 , A61L9/014
Abstract: The challenge of the present invention is to provide a multilayer filter medium whose deodorizing performance after a long-term storage of the filter medium is suppressed from deteriorating and which is superior in deodorizing performance and exhibits low pressure drop. A multilayer filter medium includes three or more nonwoven fabric layers superposed together and has two or more interlayer regions each formed by two adjacent layers of the nonwoven fabric layers, in which a first interlayer region of the interlayer regions contains functional particles A having an average particle diameter of 50 to 100 μm, and a second interlayer region selected from the interlayer regions excluding the first interlayer region contains functional particles B having an average particle diameter of 150 to 500 μm.
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