KR101353726B1 - 폴리테트라플루오로에틸렌 다공질막의 제조 방법과 필터 여과재 및 필터 유닛 - Google Patents
폴리테트라플루오로에틸렌 다공질막의 제조 방법과 필터 여과재 및 필터 유닛 Download PDFInfo
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- KR101353726B1 KR101353726B1 KR1020087026175A KR20087026175A KR101353726B1 KR 101353726 B1 KR101353726 B1 KR 101353726B1 KR 1020087026175 A KR1020087026175 A KR 1020087026175A KR 20087026175 A KR20087026175 A KR 20087026175A KR 101353726 B1 KR101353726 B1 KR 101353726B1
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims (10)
- 미소성의 폴리테트라플루오로에틸렌 시트를, 폴리테트라플루오로에틸렌의 융점 이상의 온도에서 소정의 방향으로 5 내지 30배 연신하고,상기 연신한 시트를, 상기 융점 미만의 온도에서, 상기 소정의 방향과는 상이한 방향으로 5 내지 40배 더 연신한 후에 상기 융점 이상의 온도로 가열하는 폴리테트라플루오로에틸렌 다공질막의 제조 방법이며,상기 미소성의 폴리테트라플루오로에틸렌 시트가 띠 형상이고,상기 소정의 방향이 상기 시트의 길이 방향이고,상기 상이한 방향이 상기 시트의 폭 방향인 폴리테트라플루오로에틸렌 다공질막의 제조 방법.
- 삭제
- 제1항에 있어서, 폴리테트라플루오로에틸렌 미세 분말과 액상 윤활제의 혼합물을, 압출 및 압연으로부터 선택되는 적어도 하나의 방법에 의해 시트 형상으로 성형하여, 상기 미소성의 폴리테트라플루오로에틸렌 시트를 형성하는 폴리테트라플루오로에틸렌 다공질막의 제조 방법.
- 제1항에 있어서, 평균 구멍 직경이 1 내지 5 ㎛인 상기 다공질막을 형성하는 폴리테트라플루오로에틸렌 다공질막의 제조 방법.
- 제1항에 있어서, 두께가 5 ㎛ 이상 35 ㎛ 이하이고, 유속 5.3 ㎝/sec로 기체를 투과시켰을 때에 발생하는 압력 손실이 100 ㎩ 이하인 상기 다공질막을 형성하는 폴리테트라플루오로에틸렌 다공질막의 제조 방법.
- 제1항에 있어서, 두께가 35 ㎛ 초과 50 ㎛ 이하이고, 유속 5.3 ㎝/sec로 기체를 투과시켰을 때에 발생하는 압력 손실이 200 ㎩ 이하인 상기 다공질막을 형성하는 폴리테트라플루오로에틸렌 다공질막의 제조 방법.
- 제1항에 있어서, 입경 0.3 내지 0.5 ㎛인 입자를 포함하는 기체를 유속 5.3 ㎝/sec로 투과시켰을 때에, 상기 입자의 89 % 이상을 포집하는 상기 다공질막을 형성하는 폴리테트라플루오로에틸렌 다공질막의 제조 방법.
- 제7항에 있어서, 상기 입자의 99.97 % 이상을 포집하는 상기 다공질막을 형성하는 폴리테트라플루오로에틸렌 다공질막의 제조 방법.
- 삭제
- 삭제
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2006-088175 | 2006-03-28 | ||
JP2006088175A JP4963185B2 (ja) | 2006-03-28 | 2006-03-28 | ポリテトラフルオロエチレン多孔質膜の製造方法とフィルター濾材ならびにフィルターユニット |
PCT/JP2007/056093 WO2007119508A1 (ja) | 2006-03-28 | 2007-03-23 | ポリテトラフルオロエチレン多孔質膜の製造方法とフィルター濾材ならびにフィルターユニット |
Publications (2)
Publication Number | Publication Date |
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KR20090017488A KR20090017488A (ko) | 2009-02-18 |
KR101353726B1 true KR101353726B1 (ko) | 2014-01-20 |
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KR1020087026175A Expired - Fee Related KR101353726B1 (ko) | 2006-03-28 | 2007-03-23 | 폴리테트라플루오로에틸렌 다공질막의 제조 방법과 필터 여과재 및 필터 유닛 |
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US (1) | US7846238B2 (ko) |
EP (1) | EP2000499B1 (ko) |
JP (1) | JP4963185B2 (ko) |
KR (1) | KR101353726B1 (ko) |
CN (1) | CN101415756B (ko) |
AT (1) | ATE523551T1 (ko) |
WO (1) | WO2007119508A1 (ko) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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PL1750493T3 (pl) * | 2005-07-14 | 2011-10-31 | Gore W L & Ass Gmbh | Wentylatorowa jednostka chłodząca do chłodzenia podzespołów elektronicznych |
JP5658860B2 (ja) * | 2008-05-12 | 2015-01-28 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜およびその製造方法ならびに濾材 |
US8105411B2 (en) | 2008-08-28 | 2012-01-31 | Illinois Tool Works Inc. | Fluid filter system and method |
JP2011105895A (ja) * | 2009-11-20 | 2011-06-02 | Nitto Denko Corp | ポリテトラフルオロエチレン多孔質膜の製造方法とフィルタ濾材ならびに集塵機用のフィルタユニット |
US8092768B2 (en) * | 2010-02-11 | 2012-01-10 | Energy & Environmental Research Center Foundation | Advanced particulate matter control apparatus and methods |
JP5012990B2 (ja) * | 2010-06-17 | 2012-08-29 | ダイキン工業株式会社 | 多孔膜を備える濾材、その製造方法、フィルタパック、ならびにフィルタユニット |
JP2013022547A (ja) * | 2011-07-25 | 2013-02-04 | Nitto Denko Corp | フィルタユニットおよびそれを備えた掃除機 |
US20140231341A1 (en) * | 2013-02-15 | 2014-08-21 | Pall Corporation | Ptfe membrane |
JP6411826B2 (ja) * | 2013-09-12 | 2018-10-24 | 日東電工株式会社 | 充填材含有フッ素樹脂シートの製造方法 |
EP3275531B1 (en) * | 2015-05-07 | 2020-07-08 | Nitto Denko Corporation | Filter material and filter unit |
JP6816938B2 (ja) * | 2015-07-27 | 2021-01-20 | 日東電工株式会社 | 撥油性が付与された通気フィルタ |
WO2018117056A1 (ja) * | 2016-12-19 | 2018-06-28 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜とこれを用いた防水通気膜及び防水通気部材 |
CN108807786B (zh) * | 2017-05-04 | 2020-05-15 | 宁波昌祺微滤膜科技有限公司 | 一种用于电池隔离的增强膜及其制备方法 |
MY205530A (en) * | 2017-09-22 | 2024-10-24 | Nitto Denko Corp | Filter medium for air filter, filter pleat pack, and air filter unit |
KR102160201B1 (ko) * | 2017-10-26 | 2020-09-25 | 주식회사 엘지화학 | 불소계 수지 다공성 막 및 그 제조방법 |
KR20210014137A (ko) * | 2018-06-01 | 2021-02-08 | 닛토덴코 가부시키가이샤 | 필터 여과재와, 이를 구비하는 필터 유닛 |
EP3858456A4 (en) * | 2018-09-28 | 2022-07-20 | Daikin Industries, Ltd. | Filter medium for air filter, filter pack, air filter unit, and manufacturing methods therefor |
CN114761102B (zh) * | 2019-12-05 | 2024-05-10 | 日东电工株式会社 | 聚四氟乙烯拉伸多孔质膜和使用其的透气滤材及过滤器构件 |
KR20220104724A (ko) * | 2019-12-05 | 2022-07-26 | 닛토덴코 가부시키가이샤 | 폴리테트라플루오로에틸렌 연신 다공질막과 이것을 사용한 통기 여과재 및 필터 부재 |
Citations (1)
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KR20000057425A (ko) * | 1996-12-04 | 2000-09-15 | 이노우에 노리유끼 | 필터 여과재 및 그것을 이용한 에어 필터 유니트 |
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US5510176A (en) * | 1991-07-04 | 1996-04-23 | Mitsubishi Kasei Corporation | Polytetrafluoroethylene porous film |
EP0633053B1 (en) * | 1993-01-25 | 1997-07-30 | Daikin Industries, Limited | Process for preparing a porous polytetrafluoroethylene film |
JPH07196831A (ja) | 1993-12-28 | 1995-08-01 | Japan Gore Tex Inc | ポリテトラフルオロエチレン多孔膜とその製造方法 |
US5814405A (en) * | 1995-08-04 | 1998-09-29 | W. L. Gore & Associates, Inc. | Strong, air permeable membranes of polytetrafluoroethylene |
JP3273735B2 (ja) * | 1996-05-17 | 2002-04-15 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜およびその製造方法、シート状ポリテトラフルオロエチレン成形体、並びに、エアーフィルター用濾材 |
JPH10165787A (ja) * | 1996-12-11 | 1998-06-23 | Nitto Denko Corp | ポリテトラフルオロエチレン多孔質膜およびその製造方法 |
JP3302606B2 (ja) * | 1997-04-16 | 2002-07-15 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜及びその製造方法 |
JPH1180397A (ja) * | 1997-07-16 | 1999-03-26 | Nitto Denko Corp | ポリテトラフルオロエチレン多孔質膜およびその製造方法 |
JP2004231756A (ja) * | 2003-01-29 | 2004-08-19 | Nitto Denko Corp | ポリテトラフルオロエチレンシート、ポリテトラフルオロエチレン多孔質膜およびその製造方法 |
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2006
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2007
- 2007-03-23 CN CN2007800118285A patent/CN101415756B/zh active Active
- 2007-03-23 KR KR1020087026175A patent/KR101353726B1/ko not_active Expired - Fee Related
- 2007-03-23 AT AT07739534T patent/ATE523551T1/de not_active IP Right Cessation
- 2007-03-23 WO PCT/JP2007/056093 patent/WO2007119508A1/ja active Application Filing
- 2007-03-23 US US12/225,023 patent/US7846238B2/en not_active Expired - Fee Related
- 2007-03-23 EP EP20070739534 patent/EP2000499B1/en not_active Not-in-force
Patent Citations (1)
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KR20000057425A (ko) * | 1996-12-04 | 2000-09-15 | 이노우에 노리유끼 | 필터 여과재 및 그것을 이용한 에어 필터 유니트 |
Also Published As
Publication number | Publication date |
---|---|
EP2000499A2 (en) | 2008-12-10 |
ATE523551T1 (de) | 2011-09-15 |
CN101415756A (zh) | 2009-04-22 |
EP2000499B1 (en) | 2011-09-07 |
CN101415756B (zh) | 2011-08-03 |
EP2000499A4 (en) | 2010-04-14 |
EP2000499A9 (en) | 2009-03-25 |
JP4963185B2 (ja) | 2012-06-27 |
US20090071339A1 (en) | 2009-03-19 |
KR20090017488A (ko) | 2009-02-18 |
US7846238B2 (en) | 2010-12-07 |
WO2007119508A1 (ja) | 2007-10-25 |
JP2007260547A (ja) | 2007-10-11 |
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