DE69003114T2 - Neues filtermedium zu gebrauchen als chirurgische oder reinraummaske. - Google Patents

Neues filtermedium zu gebrauchen als chirurgische oder reinraummaske.

Info

Publication number
DE69003114T2
DE69003114T2 DE91902588T DE69003114T DE69003114T2 DE 69003114 T2 DE69003114 T2 DE 69003114T2 DE 91902588 T DE91902588 T DE 91902588T DE 69003114 T DE69003114 T DE 69003114T DE 69003114 T2 DE69003114 T2 DE 69003114T2
Authority
DE
Germany
Prior art keywords
cleanroom
surgical
mask
filter medium
new 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.)
Expired - Fee Related
Application number
DE91902588T
Other languages
English (en)
Other versions
DE69003114D1 (de
Inventor
Hudson Benson
Carole Siegfried
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.)
WL Gore and Associates Inc
Original Assignee
WL Gore and Associates Inc
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 WL Gore and Associates Inc filed Critical WL Gore and Associates Inc
Publication of DE69003114D1 publication Critical patent/DE69003114D1/de
Application granted granted Critical
Publication of DE69003114T2 publication Critical patent/DE69003114T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B32B5/245—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 another layer next to it being a foam layer
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • 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
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/1213—Laminated layers
    • 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
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B5/26—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 another layer next to it also being fibrous or filamentary
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
DE91902588T 1989-12-18 1990-12-12 Neues filtermedium zu gebrauchen als chirurgische oder reinraummaske. Expired - Fee Related DE69003114T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45253189A 1989-12-18 1989-12-18
PCT/US1990/007429 WO1991008829A1 (en) 1989-12-18 1990-12-12 New filter media for use in surgical and clean room masks

Publications (2)

Publication Number Publication Date
DE69003114D1 DE69003114D1 (de) 1993-10-07
DE69003114T2 true DE69003114T2 (de) 1994-04-07

Family

ID=23796824

Family Applications (1)

Application Number Title Priority Date Filing Date
DE91902588T Expired - Fee Related DE69003114T2 (de) 1989-12-18 1990-12-12 Neues filtermedium zu gebrauchen als chirurgische oder reinraummaske.

Country Status (3)

Country Link
EP (1) EP0506858B1 (de)
DE (1) DE69003114T2 (de)
WO (1) WO1991008829A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06311A (ja) * 1992-06-22 1994-01-11 Japan Gore Tex Inc ろ過材料
CA2132555A1 (en) * 1993-12-15 1995-06-16 Kevin K. Brunson Disposable aerosol mask with face shield
US5724964A (en) * 1993-12-15 1998-03-10 Tecnol Medical Products, Inc. Disposable face mask with enhanced fluid barrier
US5553608A (en) * 1994-07-20 1996-09-10 Tecnol Medical Products, Inc. Face mask with enhanced seal and method
US5507847A (en) * 1994-07-29 1996-04-16 W. L. Gore & Associates, Inc. ULPA filter
DE19610880C2 (de) * 1995-08-15 2001-02-22 Inst Umwelttechnologie Und Umw Filter als Mundschutz
DK0761109T3 (da) * 1995-08-15 1999-08-30 Inst Umwelttechnologie Und Umw Respirationsmaske
TW438678B (en) 1996-08-09 2001-06-07 Daikin Ind Ltd Fire-retardant filter medium and air filter unit using the same
TW371284B (en) 1996-12-04 1999-10-01 Daikin Ind Ltd Filtration material of filter and air cleaning device using the filtration material
EP1058505A1 (de) * 1997-01-31 2000-12-13 Tecnol Medical Products, Inc. Wegwerferzeugnisse mit niedriger partikelemission zur verwendung bei reinräumen
JP3512100B2 (ja) * 1997-04-11 2004-03-29 ダイキン工業株式会社 エアフィルターユニットおよびその製造方法
US6644314B1 (en) 2000-11-17 2003-11-11 Kimberly-Clark Worldwide, Inc. Extensible and retractable face mask
US7837756B2 (en) 2007-04-05 2010-11-23 Aaf-Mcquay Inc. Filter with ePTFE and method of forming
WO2010092938A1 (ja) * 2009-02-16 2010-08-19 住友電工ファインポリマー株式会社 多孔質複層フィルターおよびその製造方法
WO2010143437A1 (ja) * 2009-06-11 2010-12-16 日東電工株式会社 複合通気膜およびそれを用いた通気構造
JP2012176361A (ja) * 2011-02-25 2012-09-13 Sumitomo Electric Fine Polymer Inc 多孔質複層フィルター
JP5966282B2 (ja) * 2011-08-31 2016-08-10 ダイキン工業株式会社 エアフィルタ用濾材及びエアフィルタユニット
CN103948190B (zh) * 2014-05-16 2015-08-12 上海联博安防器材有限公司 一种微孔过滤口罩及其制备方法
US9731239B2 (en) 2014-12-15 2017-08-15 W. L. Gore & Associates, Inc. Fluoropolymer article for bacterial filtration
CN109892724A (zh) * 2017-12-08 2019-06-18 齐凌科技有限公司 一种口罩
CN111991921A (zh) * 2020-06-03 2020-11-27 浙江净膜环保有限责任公司 一种口罩用滤材
CN112656061A (zh) * 2021-01-07 2021-04-16 辽宁新洪源环保材料有限公司 一种防护面罩

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802429A (en) * 1971-07-06 1974-04-09 Johnson & Johnson Surgical face mask
ZA813133B (en) * 1980-05-14 1982-12-29 Surgikos Inc Disposable surgical face mask and method of producing it
DE3719420A1 (de) * 1987-06-11 1988-12-29 Sandler Helmut Helsa Werke Atemschutzmaske
US4816328A (en) * 1987-11-13 1989-03-28 W. L. Gore & Associates, Inc. Breathable, non-linting laminate

Also Published As

Publication number Publication date
DE69003114D1 (de) 1993-10-07
EP0506858A1 (de) 1992-10-07
EP0506858B1 (de) 1993-09-01
WO1991008829A1 (en) 1991-06-27

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Legal Events

Date Code Title Description
8380 Miscellaneous part iii

Free format text: DER INHABER IST ZU AENDERN IN: W.L. GORE & ASSOCIATES, INC., NEWARK, DEL., US

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee