EP3585499A4 - Milieu filtrant contenant un électret - Google Patents

Milieu filtrant contenant un électret Download PDF

Info

Publication number: EP3585499A4
Authority: EP; European Patent Office
Prior art keywords: electret; filter media; containing filter; media; filter
Prior art date: 2017-02-21
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Pending

Application number

EP18757748.1A

Other languages

German (de)

English (en)

Other versions

EP3585499A1 (fr

Inventor

Sudheer Jinka

Bruce Smith

Jeremy Andrew Collingwood

Mark GALLIMORE

Syed Gulrez

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Hollingsworth and Vose Co

Original Assignee

Hollingsworth and Vose Co

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2017-02-21

Filing date

2018-02-21

Publication date

2020-12-23

2017-02-21 Priority claimed from US15/438,042 external-priority patent/US11077394B2/en

2017-02-21 Priority claimed from US15/438,028 external-priority patent/US10814261B2/en

2017-10-23 Priority claimed from US15/790,651 external-priority patent/US20180236385A1/en

2018-02-21 Application filed by Hollingsworth and Vose Co filed Critical Hollingsworth and Vose Co

2020-01-01 Publication of EP3585499A1 publication Critical patent/EP3585499A1/fr

2020-12-23 Publication of EP3585499A4 publication Critical patent/EP3585499A4/fr

Status Pending legal-status Critical Current

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
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
- 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
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/064—The fibres being mixed
- 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
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0654—Support layers
- 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
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1258—Permeability

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Filtering Materials (AREA)

EP18757748.1A 2017-02-21 2018-02-21 Milieu filtrant contenant un électret Pending EP3585499A4 (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US15/438,042 US11077394B2 (en)	2017-02-21	2017-02-21	Electret-containing filter media
US15/438,028 US10814261B2 (en)	2017-02-21	2017-02-21	Electret-containing filter media
US15/790,651 US20180236385A1 (en)	2017-02-21	2017-10-23	Electret-containing filter media
PCT/US2018/018924 WO2018156561A1 (fr)	2017-02-21	2018-02-21	Milieu filtrant contenant un électret

Publications (2)

Publication Number	Publication Date
EP3585499A1 EP3585499A1 (fr)	2020-01-01
EP3585499A4 true EP3585499A4 (fr)	2020-12-23

Family

ID=63254432

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP18757748.1A Pending EP3585499A4 (fr)	2017-02-21	2018-02-21	Milieu filtrant contenant un électret

Country Status (3)

Country	Link
EP (1)	EP3585499A4 (fr)
CN (2)	CN115646068A (fr)
WO (1)	WO2018156561A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US11420143B2 (en)	2018-11-05	2022-08-23	Hollingsworth & Vose Company	Filter media with irregular structure and/or reversibly stretchable layers
US20210187421A1 (en) *	2019-12-19	2021-06-24	Hollingsworth & Vose Company	Filter media comprising a non-wetlaid backer
CN111495035B (zh) *	2020-02-28	2022-09-06	中科贝思达（厦门）环保科技股份有限公司	一种驻极纳米纤维空气过滤材料及其制备方法
WO2021226049A1 (fr) *	2020-05-04	2021-11-11	Hollingsworth & Vose Company	Milieu filtrant présentant une structure irrégulière et/ou des couches étirables de manière réversible
WO2021262974A1 (fr) *	2020-06-26	2021-12-30	Jabil Inc.	Articles de polyester/poly(méthacrylate de méthyle) et leurs procédés de fabrication
WO2022064332A1 (fr) *	2020-09-22	2022-03-31	3M Innovative Properties Company	Filtre avec additifs à électret
RU205640U1 (ru) *	2020-12-03	2021-07-26	Ольга Александровна Лещинская	Электростатический фильтр
KR102755377B1 (ko) *	2021-11-24	2025-01-22	주식회사 성창오토텍	공기정화용 항균 탈취 복합부직포 및 그의 제조방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5898981A (en) *	1996-04-30	1999-05-04	Minnesota Mining & Manufacturing Company	Synthetic filter media and method for manufacturing same
WO1999052619A1 (fr) *	1998-04-08	1999-10-21	All-Felt Filtration, Llc	Composites ameliores de milieu de filtrage
EP2060311B1 (fr) *	2007-11-14	2011-05-11	Wolf PVG GmbH & Co. Kommanditgesellschaft	Milieu de filtre à air
EP2567744A1 (fr) *	2010-05-07	2013-03-13	Japan Vilene Company, Ltd.	Filtre et masque électriquement chargés
WO2016017484A1 (fr) *	2014-07-30	2016-02-04	日本バイリーン株式会社	Matériau de filtration, élément de filtre l'utilisant, et procédé de fabrication de matériau de filtration

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS54112071A (en) *	1978-02-22	1979-09-01	Mitsui Petrochemical Ind	Method of filtering liquid
US5277976A (en) *	1991-10-07	1994-01-11	Minnesota Mining And Manufacturing Company	Oriented profile fibers
US5792242A (en) *	1996-02-26	1998-08-11	Minnesota Mining And Manufacturing Co.	Electrostatic fibrous filter web
GB9815629D0 (en)	1998-07-18	1998-09-16	Hepworth Minerals & Chemicals	Filter materials and methods for the producton thereof
US6537614B1 (en) *	1998-12-18	2003-03-25	Kimberly-Clark Worldwide, Inc.	Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist
CN100377760C (zh) *	2002-09-16	2008-04-02	特里奥辛控股有限公司	加入活性剂的充有静电的过滤介质
US7244292B2 (en) *	2005-05-02	2007-07-17	3M Innovative Properties Company	Electret article having heteroatoms and low fluorosaturation ratio
US8202340B2 (en) *	2007-02-28	2012-06-19	Hollingsworth & Vose Company	Waved filter media and elements
US8257459B2 (en) *	2007-02-28	2012-09-04	Hollingsworth & Vose Company	Waved filter media and elements
WO2009062009A2 (fr) *	2007-11-09	2009-05-14	Hollingsworth & Vose Company	Milieu filtrant soufflé par fusion
GB2472097B (en) *	2009-07-24	2013-04-17	Dyson Technology Ltd	Separating apparatus with electrostatic filter
US8679218B2 (en) *	2010-04-27	2014-03-25	Hollingsworth & Vose Company	Filter media with a multi-layer structure
KR20130091734A (ko) *	2010-07-07	2013-08-19	쓰리엠 이노베이티브 프로퍼티즈 컴파니	패턴화된 에어 레이드 부직포 일렉트릿 섬유질 웨브 및 그 제조 및 사용 방법
US20120152821A1 (en)	2010-12-17	2012-06-21	Hollingsworth & Vose Company	Fine fiber filter media and processes
US20120152824A1 (en)	2010-12-17	2012-06-21	Hollingsworth & Vose Company	Fine fiber filter media and processes
US20130341290A1 (en) *	2012-06-20	2013-12-26	Hollingsworth & Vose Company	Fibrillated fibers for liquid filtration media
CN103007630A (zh) *	2012-08-30	2013-04-03	辽宁天泽产业集团纺织有限公司	一种耐高温纤维无纺过滤布及其制造方法
US9694306B2 (en) *	2013-05-24	2017-07-04	Hollingsworth & Vose Company	Filter media including polymer compositions and blends
CN105214510B (zh) *	2014-04-15	2017-05-03	纳米新能源（唐山）有限责任公司	基于摩擦发电的pm2.5滤膜及其制备方法
CN105013248A (zh) *	2014-04-20	2015-11-04	汪涛	一种空气过滤材料及其制造方法
US20160199765A1 (en) *	2015-01-08	2016-07-14	Panasonic Intellectual Property Management Co., Ltd.	Nonwoven fabric, air purifier using the same, and method for producing nonwoven fabric
CN105771427B (zh) *	2016-04-16	2018-05-15	青岛锦美盛无纺布有限公司	一种空气过滤用驻极体非织造过滤材料
EP3487602A4 (fr) *	2016-07-22	2020-01-15	Hollingsworth & Vose Company	Milieux de filtration multicouches contenant des électrets

2018
- 2018-02-21 WO PCT/US2018/018924 patent/WO2018156561A1/fr not_active Ceased
- 2018-02-21 CN CN202211237409.6A patent/CN115646068A/zh active Pending
- 2018-02-21 EP EP18757748.1A patent/EP3585499A4/fr active Pending
- 2018-02-21 CN CN201880025705.5A patent/CN110545894B/zh not_active Expired - Fee Related

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5898981A (en) *	1996-04-30	1999-05-04	Minnesota Mining & Manufacturing Company	Synthetic filter media and method for manufacturing same
WO1999052619A1 (fr) *	1998-04-08	1999-10-21	All-Felt Filtration, Llc	Composites ameliores de milieu de filtrage
EP2060311B1 (fr) *	2007-11-14	2011-05-11	Wolf PVG GmbH & Co. Kommanditgesellschaft	Milieu de filtre à air
EP2567744A1 (fr) *	2010-05-07	2013-03-13	Japan Vilene Company, Ltd.	Filtre et masque électriquement chargés
WO2016017484A1 (fr) *	2014-07-30	2016-02-04	日本バイリーン株式会社	Matériau de filtration, élément de filtre l'utilisant, et procédé de fabrication de matériau de filtration

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018156561A1 *

Also Published As

Publication number	Publication date
EP3585499A1 (fr)	2020-01-01
CN110545894A (zh)	2019-12-06
CN115646068A (zh)	2023-01-31
CN110545894B (zh)	2022-10-28
WO2018156561A1 (fr)	2018-08-30

Publication	Publication Date	Title
EP3618174A4 (fr)	2020-12-16	Filtre
EP3142767A4 (fr)	2018-04-18	Milieu filtrant modifié en surface
EP3554670A4 (fr)	2020-09-02	Milieux filtrants comprenant des adhésifs
EP3233240A4 (fr)	2018-07-04	Couche filtrante comprenant une couche de pré-filtrage
EP3205947A4 (fr)	2018-08-15	Filtre
EP3283189A4 (fr)	2018-11-21	Matériaux filtrants stables comprenant des nanofibres
EP3160616A4 (fr)	2018-02-21	Milieux filtrants comprenant des fibres orientées
EP3287179A4 (fr)	2019-01-02	Unité de filtration
EP3645089A4 (fr)	2021-02-17	Ensembles de cartouche de filtre
EP3449739A4 (fr)	2020-01-15	Cigarette à filtre
EP3585499A4 (fr)	2020-12-23	Milieu filtrant contenant un électret
EP3466518A4 (fr)	2019-05-22	Dispositif de filtration
EP3151428A4 (fr)	2018-03-28	Filtre de mode commun
EP3616768A4 (fr)	2020-03-04	Filtre à tamis
EP3544712A4 (fr)	2020-06-24	Système de filtration
EP3367496A4 (fr)	2018-12-26	Unité de filtre et filtre
EP3168989A4 (fr)	2018-02-21	Filtre passe-bas
EP3717096A4 (fr)	2021-07-21	Système de filtration
EP3578243A4 (fr)	2020-12-23	Ensemble filtre
EP3733259A4 (fr)	2021-02-17	Dispositif de filtrage
EP3256231A4 (fr)	2018-07-18	Milieu filtrant et filtres comprenant celui-ci
EP3129636A4 (fr)	2018-02-28	Construction d'élément filtrant
EP3119501A4 (fr)	2017-04-12	Filtre
EP3615180A4 (fr)	2020-12-23	Purificateur de milieu régénérable en continu
EP3142774A4 (fr)	2017-12-06	Matériau filtrant multicouche pré-coalescent

Legal Events

Date	Code	Title	Description
2018-09-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2019-12-05	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2019-12-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2020-01-01	17P	Request for examination filed	Effective date: 20190920
2020-01-01	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2020-01-01	AX	Request for extension of the european patent	Extension state: BA ME
2020-05-27	DAV	Request for validation of the european patent (deleted)
2020-05-27	DAX	Request for extension of the european patent (deleted)
2020-12-23	A4	Supplementary search report drawn up and despatched	Effective date: 20201119
2020-12-23	RIC1	Information provided on ipc code assigned before grant	Ipc: B01D 39/16 20060101ALI20201113BHEP Ipc: B01D 46/00 20060101AFI20201113BHEP
2023-01-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: EXAMINATION IS IN PROGRESS
2023-03-01	17Q	First examination report despatched	Effective date: 20230131