HK14197A - Process for producing an electret a film electret and an electret filter - Google Patents
Process for producing an electret a film electret and an electret filterInfo
- Publication number
- HK14197A HK14197A HK14197A HK14197A HK14197A HK 14197 A HK14197 A HK 14197A HK 14197 A HK14197 A HK 14197A HK 14197 A HK14197 A HK 14197A HK 14197 A HK14197 A HK 14197A
- Authority
- HK
- Hong Kong
- Prior art keywords
- electret
- film
- producing
- article
- produce
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000000835 fiber Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 150000002605 large molecules Chemical class 0.000 abstract 1
- 239000004745 nonwoven fabric Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000002759 woven fabric Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/28—Plant or installations without electricity supply, e.g. using electrets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0435—Electret
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/08—Fibrillating cellular materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/48—Processes of making filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/05—Methods of making filter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/39—Electrets separator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Filtering Materials (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6070590 | 1990-03-12 | ||
JP31318290 | 1990-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK14197A true HK14197A (en) | 1997-02-14 |
Family
ID=26401762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK14197A HK14197A (en) | 1990-03-12 | 1997-02-05 | Process for producing an electret a film electret and an electret filter |
Country Status (7)
Country | Link |
---|---|
US (1) | US5256176A (de) |
EP (1) | EP0447166B1 (de) |
AT (1) | ATE139054T1 (de) |
CA (1) | CA2037942A1 (de) |
DE (1) | DE69119948T2 (de) |
HK (1) | HK14197A (de) |
SG (1) | SG64858A1 (de) |
Families Citing this family (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04330907A (ja) * | 1991-05-02 | 1992-11-18 | Mitsui Petrochem Ind Ltd | エレクトレットフィルターの製造方法 |
WO1994003276A1 (en) * | 1992-07-30 | 1994-02-17 | E.V.E. Holdings Limited | Electrostatic filter |
US5401446A (en) * | 1992-10-09 | 1995-03-28 | The University Of Tennessee Research Corporation | Method and apparatus for the electrostatic charging of a web or film |
US5863312A (en) * | 1992-10-23 | 1999-01-26 | Wolfe; Michael | Non-entraining filter |
KR100336012B1 (ko) * | 1993-08-17 | 2002-10-11 | 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 | 일렉트릿필터매체를하전시키는방법 |
CA2124237C (en) | 1994-02-18 | 2004-11-02 | Bernard Cohen | Improved nonwoven barrier and method of making the same |
CA2136576C (en) | 1994-06-27 | 2005-03-08 | Bernard Cohen | Improved nonwoven barrier and method of making the same |
AU4961696A (en) | 1994-12-08 | 1996-06-26 | Kimberly-Clark Worldwide, Inc. | Method of forming a particle size gradient in an absorbent article |
CA2153278A1 (en) | 1994-12-30 | 1996-07-01 | Bernard Cohen | Nonwoven laminate barrier material |
KR100340352B1 (ko) * | 1995-02-21 | 2005-02-02 | 니혼바이린 가부시기가이샤 | 피처리유전체로일렉트릿물체를제조하는방법및그제조장치 |
US5645627A (en) * | 1995-02-28 | 1997-07-08 | Hollingsworth & Vose Company | Charge stabilized electret filter media |
WO1996037276A1 (en) | 1995-05-25 | 1996-11-28 | Kimberly-Clark Worldwide, Inc. | Filter matrix |
ZA965786B (en) | 1995-07-19 | 1997-01-27 | Kimberly Clark Co | Nonwoven barrier and method of making the same |
US5908598A (en) * | 1995-08-14 | 1999-06-01 | Minnesota Mining And Manufacturing Company | Fibrous webs having enhanced electret properties |
US5834384A (en) | 1995-11-28 | 1998-11-10 | Kimberly-Clark Worldwide, Inc. | Nonwoven webs with one or more surface treatments |
US6162535A (en) | 1996-05-24 | 2000-12-19 | Kimberly-Clark Worldwide, Inc. | Ferroelectric fibers and applications therefor |
US6068799A (en) * | 1997-10-01 | 2000-05-30 | 3M Innovative Properties Company | Method of making electret articles and filters with increased oily mist resistance |
US6238466B1 (en) | 1997-10-01 | 2001-05-29 | 3M Innovative Properties Company | Electret articles and filters with increased oily mist resistance |
US6537932B1 (en) | 1997-10-31 | 2003-03-25 | Kimberly-Clark Worldwide, Inc. | Sterilization wrap, applications therefor, and method of sterilizing |
US6365088B1 (en) | 1998-06-26 | 2002-04-02 | Kimberly-Clark Worldwide, Inc. | Electret treatment of high loft and low density nonwoven webs |
US6759356B1 (en) | 1998-06-30 | 2004-07-06 | Kimberly-Clark Worldwide, Inc. | Fibrous electret polymeric articles |
US6123752A (en) * | 1998-09-03 | 2000-09-26 | 3M Innovative Properties Company | High efficiency synthetic filter medium |
US6573205B1 (en) * | 1999-01-30 | 2003-06-03 | Kimberly-Clark Worldwide, Inc. | Stable electret polymeric articles |
US6444312B1 (en) | 1999-12-08 | 2002-09-03 | Fiber Innovation Technology, Inc. | Splittable multicomponent fibers containing a polyacrylonitrile polymer component |
AU2001237000A1 (en) | 2000-02-15 | 2001-08-27 | Hollingsworth And Vose Company | Melt blown composite hepa filter media and vacuum bag |
US6590759B1 (en) * | 2000-10-16 | 2003-07-08 | Illinois Tool Works Inc. | Device for placing a charge on an object and a method of retrofitting a conveyor for the device |
WO2002073673A1 (en) | 2001-03-13 | 2002-09-19 | Rochester Institute Of Technology | A micro-electro-mechanical switch and a method of using and making thereof |
WO2002089956A1 (en) * | 2001-05-02 | 2002-11-14 | Hollingsworth & Vose Company | Filter media with enhanced stiffness and increased dust holding capacity |
US7195393B2 (en) | 2001-05-31 | 2007-03-27 | Rochester Institute Of Technology | Micro fluidic valves, agitators, and pumps and methods thereof |
WO2002100551A1 (en) * | 2001-06-11 | 2002-12-19 | Rochester Institute Of Technology | An electrostatic filter and a method thereof |
US7211923B2 (en) | 2001-10-26 | 2007-05-01 | Nth Tech Corporation | Rotational motion based, electrostatic power source and methods thereof |
US7378775B2 (en) | 2001-10-26 | 2008-05-27 | Nth Tech Corporation | Motion based, electrostatic power source and methods thereof |
US20030203696A1 (en) * | 2002-04-30 | 2003-10-30 | Healey David Thomas | High efficiency ashrae filter media |
US20040040652A1 (en) * | 2002-08-30 | 2004-03-04 | 3M Innovative Properties Company | Methods for electrostatically adhering an article to a substrate |
US6805048B2 (en) * | 2002-08-30 | 2004-10-19 | 3M Innovative Properties Company | Method of marking a substrate using an electret stencil |
US20040043248A1 (en) * | 2002-08-30 | 2004-03-04 | 3M Innovative Properties Company | Phosphorescent elecret films and methods of making the same |
JP2005537358A (ja) * | 2002-08-30 | 2005-12-08 | スリーエム イノベイティブ プロパティズ カンパニー | 消去可能な物品の製造方法およびその物品 |
US7217582B2 (en) | 2003-08-29 | 2007-05-15 | Rochester Institute Of Technology | Method for non-damaging charge injection and a system thereof |
US7287328B2 (en) | 2003-08-29 | 2007-10-30 | Rochester Institute Of Technology | Methods for distributed electrode injection |
US8581308B2 (en) | 2004-02-19 | 2013-11-12 | Rochester Institute Of Technology | High temperature embedded charge devices and methods thereof |
US7553440B2 (en) * | 2005-05-12 | 2009-06-30 | Leonard William K | Method and apparatus for electric treatment of substrates |
KR100879279B1 (ko) | 2007-02-14 | 2009-01-16 | 이상열 | 고온용 일렉트릿트, 그의 제조방법 및 이를 구비하는마이크로폰 |
JP5446879B2 (ja) * | 2008-02-22 | 2014-03-19 | 旭硝子株式会社 | エレクトレットおよび静電誘導型変換素子 |
US8776367B2 (en) * | 2008-03-10 | 2014-07-15 | National Taiwan University | Method of manufacturing an electret film |
JP5267555B2 (ja) * | 2008-03-27 | 2013-08-21 | 旭硝子株式会社 | エレクトレットおよび静電誘導型変換素子 |
JP5541155B2 (ja) * | 2008-03-31 | 2014-07-09 | 旭硝子株式会社 | 加速度センサ装置、無線センサネットワーク及び広域異常振動記録システム |
WO2009128503A1 (ja) * | 2008-04-17 | 2009-10-22 | 旭硝子株式会社 | エレクトレットおよび静電誘導型変換素子 |
TWI462598B (zh) * | 2008-08-06 | 2014-11-21 | Univ Nat Taiwan | 駐極體薄膜之製造方法及包含該駐極體薄膜之揚聲器 |
DE102008047552A1 (de) * | 2008-09-16 | 2010-04-08 | Carl Freudenberg Kg | Elektretfilterelement und Verfahren zu dessen Herstellung |
JP5527211B2 (ja) * | 2008-09-19 | 2014-06-18 | 旭硝子株式会社 | エレクトレット、静電誘導型変換素子、及びエレクトレットの製造方法 |
US20100212272A1 (en) * | 2009-02-24 | 2010-08-26 | Hollingsworth & Vose Company | Filter media suitable for ashrae applications |
JP6200799B2 (ja) * | 2012-12-27 | 2017-09-20 | 積水化学工業株式会社 | エレクトレットシート |
EP2938420B1 (de) | 2012-12-28 | 2018-03-07 | 3M Innovative Properties Company | Elektretbahnen mit ladungsverstärkenden zusätzen |
ES2638777T3 (es) | 2013-04-19 | 2017-10-24 | 3M Innovative Properties Company | Bandas de electret con aditivos potenciadores de la carga |
JP6482814B2 (ja) * | 2013-10-15 | 2019-03-13 | 株式会社ユポ・コーポレーション | フィルター |
ES2674802T3 (es) | 2014-06-23 | 2018-07-04 | 3M Innovative Properties Company | Bandas de electret con aditivos potenciadores de la carga |
BR112018000412A2 (pt) | 2015-07-07 | 2018-09-11 | 3M Innovative Properties Co | benzotriazol fenóis substituídos |
BR112018000381A2 (pt) | 2015-07-07 | 2018-09-11 | 3M Innovative Properties Company | sais de fenolato de benzotriazol substituído e composições antioxidantes formadas a partir dos mesmos |
EP3320038A1 (de) | 2015-07-07 | 2018-05-16 | 3M Innovative Properties Company | Polymermatrizen mit ionischen additiven |
JP7076718B2 (ja) | 2017-01-05 | 2022-05-30 | スリーエム イノベイティブ プロパティズ カンパニー | 帯電強化添加剤を含むエレクトレットウェブ |
CN114555691B (zh) | 2019-10-16 | 2023-11-28 | 3M创新有限公司 | 取代的苯并咪唑熔体添加剂 |
EP4045167A1 (de) | 2019-10-16 | 2022-08-24 | 3M Innovative Properties Company | Schmelzzusätze mit zweifachfunktion |
EP4069898B1 (de) | 2019-12-03 | 2023-06-21 | 3M Innovative Properties Company | Thiolatsalzschmelzadditive |
WO2021111290A1 (en) | 2019-12-03 | 2021-06-10 | 3M Innovative Properties Company | Aromatic-heterocyclic ring melt additives |
CN115427622B (zh) | 2020-01-27 | 2023-09-15 | 3M创新有限公司 | 取代的硫醇盐熔体添加剂 |
US11982031B2 (en) | 2020-01-27 | 2024-05-14 | 3M Innovative Properties Company | Substituted thiol melt additives |
CN111710778B (zh) * | 2020-07-27 | 2022-03-22 | 西安交通大学 | 一种可拉伸的磁电驻极体及其制备方法 |
CN112127144A (zh) * | 2020-09-22 | 2020-12-25 | 武汉海派特塑料机械有限公司 | 用于熔喷布的静电驻极加载装置 |
CN116252502B (zh) * | 2023-03-13 | 2023-10-27 | 天津大学 | 一种基于界面沉积改性的聚丙烯薄膜介电性能提升方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3458713A (en) * | 1966-11-01 | 1969-07-29 | Northern Electric Co | Polycarbonate electrets |
US3574790A (en) * | 1967-12-07 | 1971-04-13 | Sinclair Research Inc | Polystyrene composition of suppressed electrostatic accumulation tendencies |
JPS5019183B1 (de) * | 1970-03-10 | 1975-07-04 | ||
JPS5019360B1 (de) * | 1970-08-26 | 1975-07-05 | ||
GB1337753A (en) * | 1971-01-21 | 1973-11-21 | Thermo Electron Corp | Electrets |
JPS5650408B2 (de) * | 1973-07-05 | 1981-11-28 | ||
NL181632C (nl) * | 1976-12-23 | 1987-10-01 | Minnesota Mining & Mfg | Electreetfilter en werkwijze voor het vervaardigen daarvan. |
JPS5925612B2 (ja) * | 1979-07-09 | 1984-06-19 | 新田ベルト株式会社 | エレクトレツトフイルタ− |
NL7907539A (nl) * | 1979-10-11 | 1981-04-14 | Tno | Werkwijze voor het vervaardigen van elektreten. |
US4375718A (en) * | 1981-03-12 | 1983-03-08 | Surgikos, Inc. | Method of making fibrous electrets |
US4513049A (en) * | 1983-04-26 | 1985-04-23 | Mitsui Petrochemical Industries, Ltd. | Electret article |
DE3509857C2 (de) * | 1984-03-19 | 1994-04-28 | Toyo Boseki | Elektretisiertes Staubfilter und dessen Herstellung |
JPS60225416A (ja) * | 1984-04-24 | 1985-11-09 | 三井化学株式会社 | 高性能エレクトレツトおよびエアフイルタ− |
US4874659A (en) * | 1984-10-24 | 1989-10-17 | Toray Industries | Electret fiber sheet and method of producing same |
GB8612070D0 (en) * | 1986-05-19 | 1986-06-25 | Brown R C | Blended-fibre filter material |
JP2638011B2 (ja) * | 1987-12-02 | 1997-08-06 | 東洋紡績株式会社 | エレクトレットフィルターの製造方法 |
US4874399A (en) * | 1988-01-25 | 1989-10-17 | Minnesota Mining And Manufacturing Company | Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene) |
JP2672329B2 (ja) * | 1988-05-13 | 1997-11-05 | 東レ株式会社 | エレクトレット材料 |
-
1991
- 1991-03-11 CA CA002037942A patent/CA2037942A1/en not_active Abandoned
- 1991-03-12 US US07/668,042 patent/US5256176A/en not_active Expired - Fee Related
- 1991-03-12 SG SG9601215A patent/SG64858A1/en unknown
- 1991-03-12 AT AT91302033T patent/ATE139054T1/de not_active IP Right Cessation
- 1991-03-12 EP EP91302033A patent/EP0447166B1/de not_active Expired - Lifetime
- 1991-03-12 DE DE69119948T patent/DE69119948T2/de not_active Expired - Fee Related
-
1997
- 1997-02-05 HK HK14197A patent/HK14197A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US5256176A (en) | 1993-10-26 |
DE69119948T2 (de) | 1996-10-24 |
SG64858A1 (en) | 2001-03-20 |
ATE139054T1 (de) | 1996-06-15 |
DE69119948D1 (de) | 1996-07-11 |
EP0447166B1 (de) | 1996-06-05 |
EP0447166A2 (de) | 1991-09-18 |
CA2037942A1 (en) | 1991-09-13 |
EP0447166A3 (en) | 1992-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |