KR100424968B1 - 에어필터 및 이의 제조방법 - Google Patents
에어필터 및 이의 제조방법 Download PDFInfo
- Publication number
- KR100424968B1 KR100424968B1 KR10-1998-0035804A KR19980035804A KR100424968B1 KR 100424968 B1 KR100424968 B1 KR 100424968B1 KR 19980035804 A KR19980035804 A KR 19980035804A KR 100424968 B1 KR100424968 B1 KR 100424968B1
- Authority
- KR
- South Korea
- Prior art keywords
- nonwoven fabric
- air filter
- porous membrane
- composite
- ptfe porous
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 50
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 46
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 46
- 239000012528 membrane Substances 0.000 claims abstract description 35
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 229920000728 polyester Polymers 0.000 claims abstract description 12
- 229920000098 polyolefin Polymers 0.000 claims abstract description 11
- 238000004817 gas chromatography Methods 0.000 claims abstract description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 238000003475 lamination Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 14
- 239000010687 lubricating oil Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- 239000000306 component Substances 0.000 description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229920006358 Fluon Polymers 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 239000004811 fluoropolymer Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229940057995 liquid paraffin Drugs 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000009823 thermal lamination Methods 0.000 description 2
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229920006361 Polyflon Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- BWHLPLXXIDYSNW-UHFFFAOYSA-N ketorolac tromethamine Chemical compound OCC(N)(CO)CO.OC(=O)C1CCN2C1=CC=C2C(=O)C1=CC=CC=C1 BWHLPLXXIDYSNW-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B01D39/1692—Other shaped material, e.g. perforated or porous sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0083—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/107—Organic support material
- B01D69/1071—Woven, non-woven or net mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/026—Porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249981—Plural void-containing components
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/674—Nonwoven fabric with a preformed polymeric film or sheet
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/674—Nonwoven fabric with a preformed polymeric film or sheet
- Y10T442/677—Fluorinated olefin polymer or copolymer sheet or film [e.g., TeflonR, etc.]
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Filtering Materials (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims (4)
- 폴리올레핀 및 폴리에스테르로부터 선택된 하나 이상을 주성분으로서 함유하는 섬유로 구성된 부직포 또는 당해 부직포로 이루어진 복합재와 폴리테트라플루오로에틸렌 다공성 막(膜)과의 적층물을 포함하며, 이로부터 생성된 가스의 총량이 가스 크로마토그래피로 정량분석하여 20㎍/g이하인 에어 필터.
- 제1항에 있어서, 부직포 또는 이의 복합재가 열처리되어 있는 에어 필터.
- 폴리올레핀 및 폴리에스테르로부터 선택된 하나 이상을 주성분으로서 함유하는 섬유로 구성된 부직포 또는 당해 부직포의 복합재를 80 내지 130℃의 온도에서 5 내지 20분 동안 열처리한 다음, 열처리된 부직포 또는 이의 복합재를 폴리테트라플루오로에틸렌 다공성 막과 적층시킴을 포함하는, 에어 필터의 제조방법.
- 폴리올레핀 및 폴리에스테르로부터 선택된 하나 이상을 주성분으로서 함유하는 섬유로 구성된 부직포 또는 당해 부직포의 복합재와 폴리테트라플루오로에틸렌 다공성 막을 적층시킨 다음, 생성된 적층물을 80 내지 130℃의 온도에서 5 내지 20분 동안 열처리함을 포함하는, 에어 필터의 제조방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23689897 | 1997-09-02 | ||
JP97-236898 | 1997-09-02 | ||
JP98-117517 | 1998-04-27 | ||
JP11751798A JPH11137931A (ja) | 1997-09-02 | 1998-04-27 | エアフィルタ及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990029400A KR19990029400A (ko) | 1999-04-26 |
KR100424968B1 true KR100424968B1 (ko) | 2004-06-05 |
Family
ID=26455613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-1998-0035804A KR100424968B1 (ko) | 1997-09-02 | 1998-09-01 | 에어필터 및 이의 제조방법 |
Country Status (4)
Country | Link |
---|---|
US (2) | US6030484A (ko) |
JP (1) | JPH11137931A (ko) |
KR (1) | KR100424968B1 (ko) |
DE (1) | DE19839576A1 (ko) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3365617B2 (ja) * | 1998-06-11 | 2003-01-14 | 日東電工株式会社 | エアフィルタ用濾材の製造方法 |
JP2000079332A (ja) * | 1998-07-08 | 2000-03-21 | Nitto Denko Corp | エアフィルタ用ろ材 |
US6110249A (en) * | 1999-03-26 | 2000-08-29 | Bha Technologies, Inc. | Filter element with membrane and bicomponent substrate |
JP2001347686A (ja) * | 2000-04-05 | 2001-12-18 | Nitto Denko Corp | インク容器用通気フィルタおよびこれを用いたインク容器 |
JP4495831B2 (ja) * | 2000-05-31 | 2010-07-07 | ポール・コーポレーション | 積層型フィルタエレメント |
JP3362730B2 (ja) * | 2000-08-24 | 2003-01-07 | ダイキン工業株式会社 | エアフィルター濾材、それを用いたエアフィルターパック及びエアフィルターユニット並びにエアフィルター濾材の製造方法 |
KR100402559B1 (ko) * | 2000-09-29 | 2003-10-30 | (주) 일진프라임 | 열가소성 합성수지를 이용한 다공성 집진/집수장치필터 및그 제조방법 |
JP4747255B2 (ja) * | 2000-12-27 | 2011-08-17 | Jnc株式会社 | 帯電性を有するトウおよびそれを用いた積層体 |
EP1266681B1 (en) * | 2001-06-13 | 2013-12-25 | Nitto Denko Corporation | Filter medium for turbine and methods of using and producing the same |
US20030145566A1 (en) * | 2002-02-04 | 2003-08-07 | Parks David P. | Disposable filtration bag |
DE10211667A1 (de) * | 2002-03-15 | 2003-10-02 | P D Tec Fil Gmbh Tech Filament | Textiles Glas-/PTFE-Gewebe |
KR100509329B1 (ko) * | 2002-05-30 | 2005-08-23 | 주식회사 현우기술연구 | 탁주찌꺼기가 붙지 않는 가스 배출용 부직포필터와 그 제조방법 |
KR100658177B1 (ko) * | 2004-04-12 | 2006-12-14 | 이노필텍(주) | 집진기용 내열 필터여재 및 그 제조방법 |
US20060060085A1 (en) * | 2004-09-22 | 2006-03-23 | Ptak Thaddeus J | Composite filter media |
CA2585633A1 (en) * | 2004-10-26 | 2006-06-01 | Reemay, Inc. | Composite filtration media |
KR100625286B1 (ko) * | 2006-02-03 | 2006-09-15 | 지영화 | 다층적층형 공기정화용 화학흡착필터의 제조방법 |
KR100625203B1 (ko) * | 2006-02-03 | 2006-09-15 | 지영화 | 핫멜팅형 공기정화용 화학흡착필터의 제조방법 |
US7837756B2 (en) | 2007-04-05 | 2010-11-23 | Aaf-Mcquay Inc. | Filter with ePTFE and method of forming |
US8673040B2 (en) | 2008-06-13 | 2014-03-18 | Donaldson Company, Inc. | Filter construction for use with air in-take for gas turbine and methods |
US8142535B2 (en) * | 2008-08-05 | 2012-03-27 | Johns Manville | High dust holding capacity filter media |
US8919385B2 (en) | 2010-11-24 | 2014-12-30 | Pall Corporation | Manifold plates and fluid treatment arrangements including manifold plates |
CN102806663B (zh) * | 2011-06-02 | 2014-10-01 | 上海超高工程塑料有限公司 | 具有聚四氟乙烯体表层的塑料过滤器的制备方法 |
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EP0374605A1 (en) * | 1988-12-15 | 1990-06-27 | Millipore Corporation | Sterile hydrophobic polytetrafluoroethylene membrane laminate |
JPH0523517A (ja) * | 1991-07-23 | 1993-02-02 | Daikin Ind Ltd | フイルターエレメント |
JPH0929020A (ja) * | 1995-05-18 | 1997-02-04 | Taisei Corp | エアフィルターの使用方法および製造方法 |
JPH09206568A (ja) * | 1996-02-01 | 1997-08-12 | Nitto Denko Corp | エアーフィルター用濾材 |
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CA2074349C (en) * | 1991-07-23 | 2004-04-20 | Shinji Tamaru | Polytetrafluoroethylene porous film and preparation and use thereof |
DE69424569T2 (de) * | 1993-01-25 | 2001-01-18 | Daikin Industries, Ltd. | Poröser Film aus Polytetrafluoroethylen |
-
1998
- 1998-04-27 JP JP11751798A patent/JPH11137931A/ja active Pending
- 1998-08-27 US US09/141,110 patent/US6030484A/en not_active Expired - Lifetime
- 1998-08-31 DE DE1998139576 patent/DE19839576A1/de not_active Ceased
- 1998-09-01 KR KR10-1998-0035804A patent/KR100424968B1/ko active IP Right Grant
-
1999
- 1999-12-08 US US09/456,497 patent/US20020177381A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0374605A1 (en) * | 1988-12-15 | 1990-06-27 | Millipore Corporation | Sterile hydrophobic polytetrafluoroethylene membrane laminate |
JPH0523517A (ja) * | 1991-07-23 | 1993-02-02 | Daikin Ind Ltd | フイルターエレメント |
JPH0929020A (ja) * | 1995-05-18 | 1997-02-04 | Taisei Corp | エアフィルターの使用方法および製造方法 |
JPH09206568A (ja) * | 1996-02-01 | 1997-08-12 | Nitto Denko Corp | エアーフィルター用濾材 |
Also Published As
Publication number | Publication date |
---|---|
US6030484A (en) | 2000-02-29 |
JPH11137931A (ja) | 1999-05-25 |
DE19839576A1 (de) | 1999-03-04 |
US20020177381A1 (en) | 2002-11-28 |
KR19990029400A (ko) | 1999-04-26 |
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