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CA2474282A1 - Media filtrant electretes - Google Patents

Media filtrant electretes Download PDF

Info

Publication number
CA2474282A1
CA2474282A1 CA002474282A CA2474282A CA2474282A1 CA 2474282 A1 CA2474282 A1 CA 2474282A1 CA 002474282 A CA002474282 A CA 002474282A CA 2474282 A CA2474282 A CA 2474282A CA 2474282 A1 CA2474282 A1 CA 2474282A1
Authority
CA
Canada
Prior art keywords
filter media
web
electret filter
thermoplastic
microfibers
Prior art date
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.)
Granted
Application number
CA002474282A
Other languages
English (en)
Other versions
CA2474282C (fr
Inventor
Seyed A. Angadjivand
Marvin E. Jones
Daniel E. Meyer
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.)
3M Co
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority claimed from CA002168126A external-priority patent/CA2168126C/fr
Publication of CA2474282A1 publication Critical patent/CA2474282A1/fr
Application granted granted Critical
Publication of CA2474282C publication Critical patent/CA2474282C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Landscapes

  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Electrostatic Separation (AREA)
CA002474282A 1993-08-17 1994-08-17 Media filtrant electretes Expired - Fee Related CA2474282C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10751793A 1993-08-17 1993-08-17
US08/107,517 1993-08-17
CA002168126A CA2168126C (fr) 1993-08-17 1994-08-17 Methode de chargement d'un materiau filtrant a electrets

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002168126A Division CA2168126C (fr) 1993-08-17 1994-08-17 Methode de chargement d'un materiau filtrant a electrets

Publications (2)

Publication Number Publication Date
CA2474282A1 true CA2474282A1 (fr) 1995-02-23
CA2474282C CA2474282C (fr) 2007-04-10

Family

ID=32962986

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002474282A Expired - Fee Related CA2474282C (fr) 1993-08-17 1994-08-17 Media filtrant electretes

Country Status (1)

Country Link
CA (1) CA2474282C (fr)

Also Published As

Publication number Publication date
CA2474282C (fr) 2007-04-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140819