CA3138150A1 - Milieu filtrant comprenant une couche de nanofibres de polyamide - Google Patents

Milieu filtrant comprenant une couche de nanofibres de polyamide Download PDF

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Publication number
CA3138150A1
CA3138150A1 CA3138150A CA3138150A CA3138150A1 CA 3138150 A1 CA3138150 A1 CA 3138150A1 CA 3138150 A CA3138150 A CA 3138150A CA 3138150 A CA3138150 A CA 3138150A CA 3138150 A1 CA3138150 A1 CA 3138150A1
Authority
CA
Canada
Prior art keywords
layer
polyamide
filter media
nanofiber
filter
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
CA3138150A
Other languages
English (en)
Other versions
CA3138150C (fr
Inventor
Wai-Shing Yung
Scott E. Osborn
Joseph L. Menner
Albert E. Ortega
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.)
Ascend Performance Materials Operations LLC
Original Assignee
Ascend Performance Materials Operations LLC
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 Ascend Performance Materials Operations LLC filed Critical Ascend Performance Materials Operations LLC
Publication of CA3138150A1 publication Critical patent/CA3138150A1/fr
Application granted granted Critical
Publication of CA3138150C publication Critical patent/CA3138150C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0622—Melt-blown
    • 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
    • B01D2239/06—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
    • B01D2239/1233—Fibre diameter
    • 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)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Artificial Filaments (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un milieu filtrant comprenant une couche de nanofibres de polyamide. Le polyamide peut avoir une Viscosité Relative de 2 à 200 . La couche de nanofibres de polyamide peut avoir un point de fusion de 225C ou plus. Les nanofibres peuvent avoir un diamètre de fibre moyen inférieur à 1000 nanomètres (1 micron). L'invention concerne également des procédés pour préparer le milieu filtrant. En général, le procédé comprend les étapes suivantes : (a) la fourniture d'une composition de polymère de polyamide filable, le polyamide ayant une Viscosité Relative de 2 à 200 ; (b) le filage à l'état fondu de la composition de polymère de polyamide en une pluralité de nanofibres ayant un diamètre moyen de fibre inférieur à 1 micron, suivi de (c) la formation de la couche de nanofibres de polyamide.
CA3138150A 2019-05-01 2020-05-01 Milieu filtrant comprenant une couche de nanofibres de polyamide Active CA3138150C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962841485P 2019-05-01 2019-05-01
US62/841,485 2019-05-01
PCT/US2020/031038 WO2020223638A1 (fr) 2019-05-01 2020-05-01 Milieu filtrant comprenant une couche de nanofibres de polyamide

Publications (2)

Publication Number Publication Date
CA3138150A1 true CA3138150A1 (fr) 2020-11-05
CA3138150C CA3138150C (fr) 2023-09-19

Family

ID=70802948

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3138150A Active CA3138150C (fr) 2019-05-01 2020-05-01 Milieu filtrant comprenant une couche de nanofibres de polyamide

Country Status (9)

Country Link
EP (1) EP3962626A1 (fr)
JP (1) JP7340037B2 (fr)
KR (1) KR20210153137A (fr)
CN (1) CN113710344A (fr)
BR (1) BR112021020488A2 (fr)
CA (1) CA3138150C (fr)
MX (1) MX2021013375A (fr)
TW (1) TWI758722B (fr)
WO (1) WO2020223638A1 (fr)

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* Cited by examiner, † Cited by third party
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RU205640U1 (ru) * 2020-12-03 2021-07-26 Ольга Александровна Лещинская Электростатический фильтр
CN114713051B (zh) * 2022-03-28 2023-06-27 金发科技股份有限公司 聚酰胺膜、光修复聚酰胺膜的制备方法和应用
CN114889252B (zh) * 2022-04-29 2023-04-04 广东埃力生科技股份有限公司 一种气凝胶-双组分针刺纤维毡的复合材料及其制备方法和应用
CN115487586B (zh) * 2022-09-19 2024-05-07 上海聚蓝水处理科技有限公司 电晶膜复合滤芯
CN115487587B (zh) * 2022-09-20 2024-05-10 上海聚蓝水处理科技有限公司 活性炭颗粒夹层滤芯

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Also Published As

Publication number Publication date
JP7340037B2 (ja) 2023-09-06
BR112021020488A2 (pt) 2022-02-15
MX2021013375A (es) 2021-11-25
TW202110520A (zh) 2021-03-16
CA3138150C (fr) 2023-09-19
EP3962626A1 (fr) 2022-03-09
TWI758722B (zh) 2022-03-21
CN113710344A (zh) 2021-11-26
KR20210153137A (ko) 2021-12-16
JP2022530806A (ja) 2022-07-01
WO2020223638A1 (fr) 2020-11-05

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