BRPI0906535A2 - "meio de filtração composto por uma rede de nanofibras e método para filtração de ar" - Google Patents

"meio de filtração composto por uma rede de nanofibras e método para filtração de ar"

Info

Publication number
BRPI0906535A2
BRPI0906535A2 BRPI0906535-0A BRPI0906535A BRPI0906535A2 BR PI0906535 A2 BRPI0906535 A2 BR PI0906535A2 BR PI0906535 A BRPI0906535 A BR PI0906535A BR PI0906535 A2 BRPI0906535 A2 BR PI0906535A2
Authority
BR
Brazil
Prior art keywords
filtration
nanofiber network
medium
air
air filtration
Prior art date
Application number
BRPI0906535-0A
Other languages
English (en)
Portuguese (pt)
Inventor
Cheng-Hang Chi
Hyun Sung Lim
Lu Zhang
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of BRPI0906535A2 publication Critical patent/BRPI0906535A2/pt

Links

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
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/025—Types of fibres, filaments or particles, self-supporting or supported materials comprising nanofibres
    • 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
    • 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
    • B01D2239/1233—Fibre diameter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
BRPI0906535-0A 2008-04-07 2009-04-07 "meio de filtração composto por uma rede de nanofibras e método para filtração de ar" BRPI0906535A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12335008P 2008-04-07 2008-04-07
US13249808P 2008-06-19 2008-06-19
PCT/US2009/039742 WO2009126605A2 (en) 2008-04-07 2009-04-07 Air filtration medium with improved dust loading capacity and improved resistance to high humidity environment

Publications (1)

Publication Number Publication Date
BRPI0906535A2 true BRPI0906535A2 (pt) 2015-06-30

Family

ID=41100566

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0906535-0A BRPI0906535A2 (pt) 2008-04-07 2009-04-07 "meio de filtração composto por uma rede de nanofibras e método para filtração de ar"

Country Status (7)

Country Link
US (1) US8282712B2 (enExample)
EP (1) EP2259860B1 (enExample)
JP (1) JP5619723B2 (enExample)
KR (1) KR101700455B1 (enExample)
CN (1) CN101983097B (enExample)
BR (1) BRPI0906535A2 (enExample)
WO (1) WO2009126605A2 (enExample)

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US11618238B2 (en) 2019-04-12 2023-04-04 Ascend Performance Materials Operations Llc Nonwoven multilayer structures having nanofiber layers
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Also Published As

Publication number Publication date
WO2009126605A2 (en) 2009-10-15
KR101700455B1 (ko) 2017-02-13
WO2009126605A3 (en) 2010-03-25
EP2259860B1 (en) 2018-10-31
CN101983097B (zh) 2014-08-27
JP5619723B2 (ja) 2014-11-05
EP2259860A2 (en) 2010-12-15
CN101983097A (zh) 2011-03-02
JP2011516261A (ja) 2011-05-26
KR20110004424A (ko) 2011-01-13
US8282712B2 (en) 2012-10-09
US20090249956A1 (en) 2009-10-08

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]