Invention Grant
- Patent Title: Air filter medium, air filter pack, and air filter unit
-
Application No.: US16338252Application Date: 2017-09-25
-
Publication No.: US11406927B2Publication Date: 2022-08-09
- Inventor: Takashi Niki , Masaaki Mori , Shiho Wada , Atsushi Daimon , Toshiki Yanagi
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Osaka
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2016-194411 20160930
- International Application: PCT/JP2017/034581 WO 20170925
- International Announcement: WO2018/062111 WO 20180405
- Main IPC: B01D46/54
- IPC: B01D46/54 ; B01D46/52 ; B32B27/12 ; B32B27/08 ; B01D39/16 ; B32B3/28 ; B32B5/02 ; B32B27/32 ; B01D71/36 ; B01D63/14 ; B32B5/28 ; B32B27/30
Abstract:
An air filter medium includes a first porous PTFE membrane and a second porous PTFE membrane. The air filter medium has a first main surface and a second main surface, and the first porous PTFE membrane and the second porous PTFE membrane are arranged so that an air flow moving from the first main surface to the second main surface passes through the first porous PTFE membrane and subsequently through the second porous PTFE membrane. A contact angle of the first porous PTFE membrane with water is in the range of 154° to 165°.
Public/Granted literature
- US20190232211A1 AIR FILTER MEDIUM, AIR FILTER PACK, AND AIR FILTER UNIT Public/Granted day:2019-08-01
Information query
IPC分类:
