BR9812585A - Artigo de eletreto, fibra ou folha contínua de não tecido, filtro de eletreto, respirador, equipamento eletrônico, e, composição intermediária para a fabricação de um filtro de eletreto - Google Patents
Artigo de eletreto, fibra ou folha contínua de não tecido, filtro de eletreto, respirador, equipamento eletrônico, e, composição intermediária para a fabricação de um filtro de eletretoInfo
- Publication number
- BR9812585A BR9812585A BR9812585A BR9812585A BR9812585A BR 9812585 A BR9812585 A BR 9812585A BR 9812585 A BR9812585 A BR 9812585A BR 9812585 A BR9812585 A BR 9812585A BR 9812585 A BR9812585 A BR 9812585A
- Authority
- BR
- Brazil
- Prior art keywords
- electret
- filter
- respirator
- fiber
- manufacture
- Prior art date
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
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
-
- 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
- B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/28—Plant or installations without electricity supply, e.g. using electrets
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43838—Ultrafine fibres, e.g. microfibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0435—Electret
-
- 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
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/48—Processes of making filters
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/33—Gas mask canister
-
- 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
- Y10S55/35—Respirators and register filters
-
- 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
- Y10S55/39—Electrets separator
-
- 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.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2164—Coating or impregnation specified as water repellent
- Y10T442/2189—Fluorocarbon containing
-
- 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.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2262—Coating or impregnation is oil repellent but not oil or stain release
- Y10T442/227—Fluorocarbon containing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Filtering Materials (AREA)
- Electrostatic Separation (AREA)
- Nonwoven Fabrics (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
"ARTIGO DE ELETRETO, FIBRA OU FOLHA CONTìNUA DE NãO TECIDO, FILTRO DE ELETRETO, RESPIRADOR, EQUIPAMENTO ELETRôNICO, E, COMPOSIçãO INTERMEDIáRIA PARA A FABRICAçãO DE UM FILTRO DE ELETRETO". Novos artigos de eletreto contendo um polímero e um aditivo de melhoramento de desempenho podem ser identificados por suas características de condutividade termicamente estimuladas ou suas propriedades de filtragem. Artigos de eletreto tais como folhas contínuas e respiradores de filtro de não tecidos apresentam desempenho de carga de névoa, oleosa, penetração baixa e uma queda de tensão pequena. Os artigos de eletreto são preferivelmente produzidos por sopro em fusão de uma mistura de um polímero e um aditivo fluoroquímico selecionado do grupo consitindo das fórmulas (I), (II) e (III).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/941,270 US6238466B1 (en) | 1997-10-01 | 1997-10-01 | Electret articles and filters with increased oily mist resistance |
PCT/US1998/001439 WO1999016532A1 (en) | 1997-10-01 | 1998-01-26 | Oily mist resistant electret articles and filters |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9812585A true BR9812585A (pt) | 2000-07-25 |
Family
ID=25476204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9812585A BR9812585A (pt) | 1997-10-01 | 1998-01-26 | Artigo de eletreto, fibra ou folha contínua de não tecido, filtro de eletreto, respirador, equipamento eletrônico, e, composição intermediária para a fabricação de um filtro de eletreto |
Country Status (12)
Country | Link |
---|---|
US (3) | US6238466B1 (pt) |
EP (2) | EP1402934B8 (pt) |
JP (2) | JP2003520659A (pt) |
KR (1) | KR100496233B1 (pt) |
CN (1) | CN1101241C (pt) |
AU (1) | AU740968B2 (pt) |
BR (1) | BR9812585A (pt) |
CA (1) | CA2303004A1 (pt) |
DE (2) | DE69839703D1 (pt) |
PL (1) | PL195918B1 (pt) |
RU (1) | RU2199372C2 (pt) |
WO (1) | WO1999016532A1 (pt) |
Families Citing this family (111)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU767026B2 (en) * | 1997-10-01 | 2003-10-30 | Minnesota Mining And Manufacturing Company | Oily mist resistant electret articles and filters |
US6213122B1 (en) | 1997-10-01 | 2001-04-10 | 3M Innovative Properties Company | Electret fibers and filter webs having a low level of extractable hydrocarbons |
US6732733B1 (en) | 1997-10-03 | 2004-05-11 | 3M Innovative Properties Company | Half-mask respirator with head harness assembly |
US6062221A (en) | 1997-10-03 | 2000-05-16 | 3M Innovative Properties Company | Drop-down face mask assembly |
US6432175B1 (en) | 1998-07-02 | 2002-08-13 | 3M Innovative Properties Company | Fluorinated electret |
EP1202788B1 (en) * | 1999-06-17 | 2003-03-12 | HOLLINGSWORTH & VOSE COMPANY | Charge stabilized electret filter media |
US6627563B1 (en) * | 1999-08-19 | 2003-09-30 | 3M Innovative Properties Company | Oily-mist resistant filter that has nondecreasing efficiency |
US6406657B1 (en) * | 1999-10-08 | 2002-06-18 | 3M Innovative Properties Company | Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid |
US6375886B1 (en) * | 1999-10-08 | 2002-04-23 | 3M Innovative Properties Company | Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid |
US6524360B2 (en) | 2000-02-15 | 2003-02-25 | Hollingsworth & Vose Company | Melt blown composite HEPA filter media and vacuum bag |
WO2001068658A2 (en) * | 2000-03-15 | 2001-09-20 | Hollingsworth & Vose Company | Melt blown composite hepa vacuum filter |
US6743273B2 (en) | 2000-09-05 | 2004-06-01 | Donaldson Company, Inc. | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures |
US6740142B2 (en) | 2000-09-05 | 2004-05-25 | Donaldson Company, Inc. | Industrial bag house elements |
US7280014B2 (en) * | 2001-03-13 | 2007-10-09 | Rochester Institute Of Technology | Micro-electro-mechanical switch and a method of using and making thereof |
US6802315B2 (en) * | 2001-03-21 | 2004-10-12 | Hollingsorth & Vose Company | Vapor deposition treated electret filter media |
US7101423B2 (en) * | 2001-04-24 | 2006-09-05 | Ulrich Lersch | Respiratory air filter |
EP1385597A1 (en) * | 2001-05-02 | 2004-02-04 | HOLLINGSWORTH & VOSE COMPANY | Filter media with enhanced stiffness and increased dust holding capacity |
AU2002303933A1 (en) * | 2001-05-31 | 2002-12-09 | Rochester Institute Of Technology | Fluidic valves, agitators, and pumps and methods thereof |
US6773488B2 (en) | 2001-06-11 | 2004-08-10 | Rochester Institute Of Technology | Electrostatic filter and a method thereof |
US6514324B1 (en) * | 2001-08-10 | 2003-02-04 | Rick L. Chapman | High efficiency active electrostatic air filter and method of manufacture |
US7211923B2 (en) * | 2001-10-26 | 2007-05-01 | Nth Tech Corporation | Rotational motion based, electrostatic power source and methods thereof |
US7378775B2 (en) * | 2001-10-26 | 2008-05-27 | Nth Tech Corporation | Motion based, electrostatic power source and methods thereof |
AU2003210851A1 (en) * | 2002-02-13 | 2003-09-04 | 3M Innovative Properties Company | Filter device, method of manufacturing the same and method of replacing a filter device |
WO2003090872A1 (en) * | 2002-04-25 | 2003-11-06 | Avon Protection Systems, Inc. | Respirator filter canisters and method of filling same |
US20030203696A1 (en) * | 2002-04-30 | 2003-10-30 | Healey David Thomas | High efficiency ashrae filter media |
US6923182B2 (en) * | 2002-07-18 | 2005-08-02 | 3M Innovative Properties Company | Crush resistant filtering face mask |
US20050000642A1 (en) * | 2003-07-03 | 2005-01-06 | 3M Innovative Properties Company | Cling articles |
US7004999B2 (en) * | 2003-08-18 | 2006-02-28 | Dynamotive Energy Systems Corporation | Apparatus for separating fouling contaminants from non-condensable gases at the end of a pyrolysis/thermolysis of biomass process |
US7217582B2 (en) * | 2003-08-29 | 2007-05-15 | Rochester Institute Of Technology | Method for non-damaging charge injection and a system thereof |
US7287328B2 (en) * | 2003-08-29 | 2007-10-30 | Rochester Institute Of Technology | Methods for distributed electrode injection |
US7097694B1 (en) | 2003-12-04 | 2006-08-29 | Fleetguard, Inc. | High performance, high efficiency filter |
US7703456B2 (en) * | 2003-12-18 | 2010-04-27 | Kimberly-Clark Worldwide, Inc. | Facemasks containing an anti-fog / anti-glare composition |
CN101791153A (zh) * | 2004-01-13 | 2010-08-04 | 黄重德 | 个人用吸入过滤器 |
US8581308B2 (en) * | 2004-02-19 | 2013-11-12 | Rochester Institute Of Technology | High temperature embedded charge devices and methods thereof |
KR100809568B1 (ko) * | 2004-04-23 | 2008-03-04 | 마츠시다 덴코 가부시키가이샤 | 정전 무화기를 구비한 가열 송풍 장치 |
US7320722B2 (en) * | 2004-10-29 | 2008-01-22 | 3M Innovative Properties Company | Respiratory protection device that has rapid threaded clean air source attachment |
US20060096911A1 (en) * | 2004-11-08 | 2006-05-11 | Brey Larry A | Particle-containing fibrous web |
US7419526B2 (en) * | 2005-03-03 | 2008-09-02 | 3M Innovative Properties Company | Conformal filter cartridges and methods |
EP1888201A2 (en) * | 2005-03-07 | 2008-02-20 | 3M Innovative Properties Company | Vehicle passenger compartment air filter devices |
JP2008538532A (ja) * | 2005-04-22 | 2008-10-30 | スリーエム イノベイティブ プロパティズ カンパニー | 車両客室エアフィルター装置 |
US7244291B2 (en) * | 2005-05-02 | 2007-07-17 | 3M Innovative Properties Company | Electret article having high fluorosaturation ratio |
US7244292B2 (en) * | 2005-05-02 | 2007-07-17 | 3M Innovative Properties Company | Electret article having heteroatoms and low fluorosaturation ratio |
US7553440B2 (en) | 2005-05-12 | 2009-06-30 | Leonard William K | Method and apparatus for electric treatment of substrates |
US7922644B2 (en) * | 2005-09-20 | 2011-04-12 | Lawrence Livermore National Security, Llc | Hazardous particle binder, coagulant and re-aerosolization inhibitor |
US20070074731A1 (en) * | 2005-10-05 | 2007-04-05 | Nth Tech Corporation | Bio-implantable energy harvester systems and methods thereof |
US7503326B2 (en) * | 2005-12-22 | 2009-03-17 | 3M Innovative Properties Company | Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap |
US7390351B2 (en) * | 2006-02-09 | 2008-06-24 | 3M Innovative Properties Company | Electrets and compounds useful in electrets |
US7601192B2 (en) * | 2006-06-07 | 2009-10-13 | Gore Enterprise Holdings, Inc. | Recirculation filter |
US7905973B2 (en) * | 2006-07-31 | 2011-03-15 | 3M Innovative Properties Company | Molded monocomponent monolayer respirator |
US7947142B2 (en) * | 2006-07-31 | 2011-05-24 | 3M Innovative Properties Company | Pleated filter with monolayer monocomponent meltspun media |
US20090000624A1 (en) * | 2007-06-28 | 2009-01-01 | 3M Innovative Properties Company | Respirator having a harness and methods of making and fitting the same |
BRPI0819048C8 (pt) * | 2007-12-06 | 2018-08-07 | 3M Innovative Properties Co | "meio filtrante de eletreto e método de preparo de uma manta de eletreto" |
US7765698B2 (en) * | 2008-06-02 | 2010-08-03 | 3M Innovative Properties Company | Method of making electret articles based on zeta potential |
WO2009148747A2 (en) * | 2008-06-02 | 2009-12-10 | 3M Innovative Properties Company | Charge-enhancing additives for electrets |
BRPI0909959B1 (pt) * | 2008-06-02 | 2018-11-13 | 3M Innovative Properties Co | manta de eletreto e meio de filtro à base de eletreto |
JP2011528610A (ja) * | 2008-06-30 | 2011-11-24 | スリーエム イノベイティブ プロパティズ カンパニー | 多孔性基材フィールド内の金属ナノクラスターのその場での形成方法 |
US20100212272A1 (en) * | 2009-02-24 | 2010-08-26 | Hollingsworth & Vose Company | Filter media suitable for ashrae applications |
US20100252047A1 (en) * | 2009-04-03 | 2010-10-07 | Kirk Seth M | Remote fluorination of fibrous filter webs |
US9284669B2 (en) * | 2009-04-03 | 2016-03-15 | 3M Innovative Properties Company | Processing aids for olefinic webs, including electret webs |
JP5706875B2 (ja) * | 2009-04-03 | 2015-04-22 | スリーエム イノベイティブ プロパティズ カンパニー | 帯電強化添加剤を含むエレクトレットウェブ |
WO2010127161A2 (en) * | 2009-04-29 | 2010-11-04 | Koehler Richard H | Surgical face mask, including reusable masks, with filtered inhalation and exhalation valves |
ITPD20090117A1 (it) * | 2009-05-04 | 2010-11-05 | Euroflex Srl | Spruzzatore a mano per liquidi detergenti |
US8365771B2 (en) | 2009-12-16 | 2013-02-05 | 3M Innovative Properties Company | Unidirectional valves and filtering face masks comprising unidirectional valves |
US8187488B2 (en) | 2010-03-31 | 2012-05-29 | MALAXIT Co. | Electret composite with deep trapping centers on the interphase boundary |
ES2616956T3 (es) | 2010-08-23 | 2017-06-14 | Fiberweb Holdings Limited | Red no tejida y fibras con propiedades de electreto, procesos de fabricación de las mismas y su uso |
DE102011014202A1 (de) * | 2011-03-16 | 2012-09-20 | Sandler Ag | Filtermedium für die Herstellung plissierter Filter |
US8861167B2 (en) | 2011-05-12 | 2014-10-14 | Global Plasma Solutions, Llc | Bipolar ionization device |
RU2572172C2 (ru) | 2011-08-01 | 2015-12-27 | 3М Инновейтив Пропетриз Компани | Сборочный узел респиратора, содержащий фиксирующий механизм |
US9700743B2 (en) | 2012-07-31 | 2017-07-11 | 3M Innovative Properties Company | Respiratory assembly including latching mechanism |
WO2014105107A1 (en) * | 2012-12-28 | 2014-07-03 | 3M Innovative Properties Company | Electret webs with charge-enhancing additives |
US9247788B2 (en) | 2013-02-01 | 2016-02-02 | 3M Innovative Properties Company | Personal protective equipment strap retaining devices |
US9259058B2 (en) | 2013-02-01 | 2016-02-16 | 3M Innovative Properties Company | Personal protective equipment strap retaining devices |
US9510626B2 (en) | 2013-02-01 | 2016-12-06 | 3M Innovative Properties Company | Sleeve-fit respirator cartridge |
ES2638777T3 (es) | 2013-04-19 | 2017-10-24 | 3M Innovative Properties Company | Bandas de electret con aditivos potenciadores de la carga |
BR112016002769A2 (pt) | 2013-08-08 | 2017-08-01 | H Koehler Richard | película de máscara facial a ser usada para prover uma película entre a face do usuário e uma máscara respiratória de máscara facial de qualquer desenho e método para aplicação de película em uma máscara facial |
CN106165040B (zh) | 2014-04-04 | 2019-01-22 | 东洋纺株式会社 | 驻极体 |
US10240269B2 (en) | 2014-06-23 | 2019-03-26 | 3M Innovative Properties Company | Electret webs with charge-enhancing additives |
CN108026054B (zh) | 2015-07-07 | 2021-10-15 | 3M创新有限公司 | 取代的苯并三唑酚 |
CN107849449B (zh) | 2015-07-07 | 2020-12-29 | 3M创新有限公司 | 取代的苯并三唑酚盐及由其形成的抗氧化剂组合物 |
EP3320135B1 (en) | 2015-07-07 | 2019-08-28 | 3M Innovative Properties Company | Electret webs with charge-enhancing additives |
US11053373B2 (en) | 2015-07-07 | 2021-07-06 | 3M Innovative Properties Company | Polymeric matrices with ionic additives |
CN108136298B (zh) | 2015-10-02 | 2020-08-28 | 东洋纺株式会社 | 驻极体和驻极体滤材 |
JP6959933B2 (ja) * | 2016-03-09 | 2021-11-05 | ファイバーテクス・パーソナル・ケア・アクティーゼルスカブ | 高バリア不織布 |
EP3219376B1 (de) | 2016-03-17 | 2018-10-31 | Eurofilters N.V. | Staubsaugerfilterbeutel aus recyclierten kunststoffen |
CN113996120A (zh) | 2016-03-17 | 2022-02-01 | 欧洲过滤袋公司 | 具有回收纺织材料和/或棉短绒的真空吸尘器过滤袋 |
CN109641170B (zh) * | 2016-08-26 | 2022-04-26 | 3M创新有限公司 | 改进的室内空气净化器和过滤介质 |
RU2719873C1 (ru) | 2016-09-16 | 2020-04-23 | 3М Инновейтив Пропертиз Компани | Клапан выдоха и респиратор с клапаном выдоха |
CN106528972B (zh) * | 2016-10-31 | 2019-06-07 | 山西新华化工有限责任公司 | 滤毒罐气流模拟仿真试验方法 |
US10543441B2 (en) | 2016-12-15 | 2020-01-28 | Hollingsworth & Vose Company | Filter media including adhesives and/or oleophobic properties |
US10898838B2 (en) | 2016-12-15 | 2021-01-26 | Hollingsworth & Vose Company | Filter media including adhesives |
EP3565653B1 (en) | 2017-01-05 | 2020-10-28 | 3M Innovative Properties Company | Electret webs with charge-enhancing additives |
US10814261B2 (en) | 2017-02-21 | 2020-10-27 | Hollingsworth & Vose Company | Electret-containing filter media |
US11077394B2 (en) | 2017-02-21 | 2021-08-03 | Hollingsworth & Vose Company | Electret-containing filter media |
CN114470971B (zh) * | 2017-03-28 | 2024-03-08 | 霍林斯沃思和沃斯有限公司 | 包含粘合剂和/或疏油特性的过滤介质 |
EP3406780B1 (de) * | 2017-05-22 | 2020-01-08 | Axel Nickel | Getemperter meltblown-vliesstoff mit hoher stauchhärte |
CN108635966A (zh) * | 2018-04-24 | 2018-10-12 | 华中科技大学 | 一种纳米纤维薄膜过滤材料的制备方法及其产品 |
US20200270787A1 (en) * | 2019-02-25 | 2020-08-27 | North Carolina State University | Spunbond filters with low pressure drop and high efficiency |
US20220396684A1 (en) | 2019-10-16 | 2022-12-15 | 3M Innovative Properties Company | Substituted benzimidazole melt additives |
WO2021074863A1 (en) | 2019-10-16 | 2021-04-22 | 3M Innovative Properties Company | Dual-function melt additives |
EP4069899A1 (en) | 2019-12-03 | 2022-10-12 | 3M Innovative Properties Company | Aromatic-heterocyclic ring melt additives |
WO2021111246A1 (en) | 2019-12-03 | 2021-06-10 | 3M Innovative Properties Company | Thiolate salt melt additives |
WO2021152426A1 (en) | 2020-01-27 | 2021-08-05 | 3M Innovative Properties Company | Substituted thiol melt additives |
WO2021152422A1 (en) | 2020-01-27 | 2021-08-05 | 3M Innovative Properties Company | Substituted thiolate salt melt additives |
WO2021160051A1 (zh) * | 2020-02-13 | 2021-08-19 | 上海必修福企业管理有限公司 | 电子面罩和防护服 |
CN111560710A (zh) * | 2020-05-20 | 2020-08-21 | 吉林省洁诺新材料有限公司 | 一种熔喷非织造布双向静电驻极方法 |
US20200376305A1 (en) * | 2020-06-10 | 2020-12-03 | Noah Lang | Personal protective equipment system for safe air, train or bus travel protecting against infectious agents including novel coronavirus - covid-19 |
WO2022034444A1 (en) | 2020-08-11 | 2022-02-17 | 3M Innovative Properties Company | Electret webs with benzoate salt charge-enhancing additives |
EP4196630A1 (en) | 2020-08-11 | 2023-06-21 | 3M Innovative Properties Company | Electret webs with carboxylic acid or carboxylate salt charge-enhancing additives |
WO2022091060A1 (en) | 2020-11-02 | 2022-05-05 | 3M Innovative Properties Company | Core-sheath fibers, nonwoven fibrous web, and filtering articles including the same |
WO2022130080A1 (en) | 2020-12-18 | 2022-06-23 | 3M Innovative Properties Company | Electrets comprising a substituted cyclotriphosphazene compound and articles therefrom |
CN116785834A (zh) * | 2022-03-18 | 2023-09-22 | 大金工业株式会社 | 驻极体材料、过滤器以及母料 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3959421A (en) | 1974-04-17 | 1976-05-25 | Kimberly-Clark Corporation | Method for rapid quenching of melt blown fibers |
US4215682A (en) | 1978-02-06 | 1980-08-05 | Minnesota Mining And Manufacturing Company | Melt-blown fibrous electrets |
AU565762B2 (en) | 1983-02-04 | 1987-09-24 | Minnesota Mining And Manufacturing Company | Method and apparatus for manufacturing an electret filter medium |
US4536440A (en) | 1984-03-27 | 1985-08-20 | Minnesota Mining And Manufacturing Company | Molded fibrous filtration products |
US4931230A (en) | 1986-05-08 | 1990-06-05 | Minnesota Mining And Manufacturing Company | Method for preparing radiation resistant polypropylene articles |
US5099026A (en) | 1986-09-12 | 1992-03-24 | Crater Davis H | Fluorochemical oxazolidinones |
US5025052A (en) | 1986-09-12 | 1991-06-18 | Minnesota Mining And Manufacturing Company | Fluorochemical oxazolidinones |
US4950549A (en) | 1987-07-01 | 1990-08-21 | Minnesota Mining And Manufacturing Company | Polypropylene articles and method for preparing same |
JP2638011B2 (ja) * | 1987-12-02 | 1997-08-06 | 東洋紡績株式会社 | エレクトレットフィルターの製造方法 |
US4874399A (en) | 1988-01-25 | 1989-10-17 | Minnesota Mining And Manufacturing Company | Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene) |
JP2672329B2 (ja) | 1988-05-13 | 1997-11-05 | 東レ株式会社 | エレクトレット材料 |
CA2037942A1 (en) | 1990-03-12 | 1991-09-13 | Satoshi Matsuura | Process for producing an electret, a film electret, and an electret filter |
AU669420B2 (en) | 1993-03-26 | 1996-06-06 | Minnesota Mining And Manufacturing Company | Oily mist resistant electret filter media |
EP0714463B1 (en) | 1993-08-17 | 1999-03-10 | Minnesota Mining And Manufacturing Company | Method of charging electret filter media |
JP2765690B2 (ja) | 1993-12-27 | 1998-06-18 | 花王株式会社 | 清掃用シート |
DE9414040U1 (de) | 1994-08-30 | 1995-01-19 | Hoechst Ag | Vliese aus Elektretfasermischungen mit verbesserter Ladungsstabilität |
US5645627A (en) | 1995-02-28 | 1997-07-08 | Hollingsworth & Vose Company | Charge stabilized electret filter media |
US5908598A (en) | 1995-08-14 | 1999-06-01 | Minnesota Mining And Manufacturing Company | Fibrous webs having enhanced electret properties |
US5817415A (en) | 1996-09-12 | 1998-10-06 | E. I. Du Pont De Nemours And Company | Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters |
JP3566477B2 (ja) * | 1996-12-26 | 2004-09-15 | 興研株式会社 | 静電フィルター |
-
1997
- 1997-10-01 US US08/941,270 patent/US6238466B1/en not_active Expired - Lifetime
-
1998
- 1998-01-26 AU AU62494/98A patent/AU740968B2/en not_active Ceased
- 1998-01-26 DE DE69839703T patent/DE69839703D1/de not_active Expired - Lifetime
- 1998-01-26 KR KR10-2000-7003520A patent/KR100496233B1/ko not_active IP Right Cessation
- 1998-01-26 JP JP2000513658A patent/JP2003520659A/ja not_active Withdrawn
- 1998-01-26 BR BR9812585A patent/BR9812585A/pt active Search and Examination
- 1998-01-26 CN CN98809670A patent/CN1101241C/zh not_active Expired - Fee Related
- 1998-01-26 EP EP20030026835 patent/EP1402934B8/en not_active Expired - Lifetime
- 1998-01-26 PL PL98339650A patent/PL195918B1/pl unknown
- 1998-01-26 CA CA 2303004 patent/CA2303004A1/en not_active Abandoned
- 1998-01-26 WO PCT/US1998/001439 patent/WO1999016532A1/en not_active Application Discontinuation
- 1998-01-26 RU RU2000108467A patent/RU2199372C2/ru not_active IP Right Cessation
- 1998-01-26 EP EP98904680A patent/EP1019173B9/en not_active Expired - Lifetime
- 1998-01-26 DE DE1998637864 patent/DE69837864T2/de not_active Expired - Lifetime
-
2000
- 2000-01-18 US US09/483,768 patent/US6214094B1/en not_active Expired - Lifetime
- 2000-01-18 US US09/484,307 patent/US6261342B1/en not_active Expired - Lifetime
-
2008
- 2008-03-21 JP JP2008074246A patent/JP2009006313A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE69839703D1 (de) | 2008-08-21 |
DE69837864D1 (de) | 2007-07-12 |
EP1402934A1 (en) | 2004-03-31 |
EP1019173A1 (en) | 2000-07-19 |
JP2003520659A (ja) | 2003-07-08 |
DE69837864T2 (de) | 2008-12-24 |
CN1272069A (zh) | 2000-11-01 |
CN1101241C (zh) | 2003-02-12 |
PL339650A1 (en) | 2001-01-02 |
KR100496233B1 (ko) | 2005-06-20 |
PL195918B1 (pl) | 2007-11-30 |
AU6249498A (en) | 1999-04-23 |
JP2009006313A (ja) | 2009-01-15 |
WO1999016532A1 (en) | 1999-04-08 |
EP1402934B1 (en) | 2007-05-30 |
AU740968B2 (en) | 2001-11-15 |
EP1402934B8 (en) | 2007-10-10 |
CA2303004A1 (en) | 1999-04-08 |
EP1019173B1 (en) | 2008-07-09 |
US6238466B1 (en) | 2001-05-29 |
RU2199372C2 (ru) | 2003-02-27 |
US6261342B1 (en) | 2001-07-17 |
EP1019173B9 (en) | 2008-11-05 |
KR20010024378A (ko) | 2001-03-26 |
US6214094B1 (en) | 2001-04-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR9812585A (pt) | Artigo de eletreto, fibra ou folha contínua de não tecido, filtro de eletreto, respirador, equipamento eletrônico, e, composição intermediária para a fabricação de um filtro de eletreto | |
BR9911728A (pt) | Eletreto, processo de produção de um eletreto, filtro, e, respirador | |
EA200100066A1 (ru) | Огнестойкая вспучивающаяся композиция для покрытия лигноцеллюлозных материалов | |
ATE457330T1 (de) | Flammhemmende mikroporöse polymere schäume | |
DE69610856D1 (de) | Vliesstoff aus zerblasenem polyäthylen und verfahren zur herstellung | |
ATE46527T1 (de) | Vertraegliche mischungen von imidiertem acrylpolymer und polyamid und ihre verwendung bei der herstellung von kunststofferzeugnissen. | |
BR0012695A (pt) | Meio de filtração e artigos que incorporam os mesmos | |
BR9812593A (pt) | Processo de se produzir um artigo eletreto | |
BR9805841A (pt) | Não tecido e método para fabricação do mesmo. | |
SE8603242D0 (sv) | Polyolefininnehallande extruderbara kompositioner och forfaranden for deras formning till elastpordukter | |
KR930008040A (ko) | 열가소성 조성물 및 그로부터 제조된 부직 웹 | |
DE69722311D1 (de) | Coextrusionsbindemittel, seine Verwendung für Mehrschichtstrukturen und Mehrschichtstrukturen daraus hergestellt | |
FI973221A (fi) | 1-aryyli-2-asyyliammo-etaaniyhdisteitä ja niiden käyttö neurokiniiniantagonisteina, erityisesti neurokiniini 1 antagonisteina | |
BR0007275A (pt) | Naftopiranos e fenantropiranos anelados em c5-c6com um grupo bicìclico e composições e matrizes | |
DE60000451T2 (de) | Vliesbahn | |
DE69706305T2 (de) | Polymere auf den basis von orthoestern und ihre herstellung und verwendung | |
NO20016037D0 (no) | Dermale anestetika | |
ATE115004T1 (de) | Makroporöse, asymmetrische, hydrophile membran aus polyaramid. | |
BR8300645A (pt) | Composicao amaciadora de tecidos | |
TR200001182T2 (tr) | Yeni karbonik asit türevleri, üretimleri ve kullanımları. | |
KR970015826A (ko) | 미다공성 시트, 그 시트를 사용한 인조 피혁용 재료 및 그 시트의 제조 방법 | |
ATE506400T1 (de) | Verbesserte verarbeitung und lebensdauer von mörtelplatten aus maurermörtel und verfahren zu dessen herstellung | |
EA200400343A1 (ru) | Композиция с контролируемым высвобождением кларитромицина или тинидазола | |
YU3701A (sh) | Supstituisani fenilamidini sa antitrombskim dejstvom | |
BR9914667A (pt) | Laminados elásticos respiráveis |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B11D | Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time |