CA2252516A1 - Ferroelectric fibers and applications therefor - Google Patents
Ferroelectric fibers and applications thereforInfo
- Publication number
- CA2252516A1 CA2252516A1 CA002252516A CA2252516A CA2252516A1 CA 2252516 A1 CA2252516 A1 CA 2252516A1 CA 002252516 A CA002252516 A CA 002252516A CA 2252516 A CA2252516 A CA 2252516A CA 2252516 A1 CA2252516 A1 CA 2252516A1
- Authority
- CA
- Canada
- Prior art keywords
- ferroelectric material
- particles
- fibers
- nonwoven web
- surfactant
- 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
Links
Classifications
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
-
- 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
-
- 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
-
- 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
- D04H1/4382—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
- D04H1/43825—Composite fibres
- D04H1/43832—Composite fibres side-by-side
-
- 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
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2927—Rod, strand, filament or fiber including structurally defined particulate matter
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2967—Synthetic resin or polymer
-
- 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]
- Y10T442/693—Including a paper layer
-
- 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]
- Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]
Abstract
A fiber which includes a thermoplastic polymer and particles of a ferroelectric material dispersed therein. The thermoplastic polymer may be, for example, a polyolefin, such as polypropylene or polyethylene, and the ferroelectric material may be barium titanate. The ferroelectric material may be present at a level of from about 0.01 to about 50 percent by weight (from about 0.001 to about 13 percent by volume), and will have a longest dimension in a range of from about 10 nanometers to about 10 micrometers. The fiber may be exposed to an electric field. A plurality of the fibers may be employed to form a knitted or woven fabric or a nonwoven web. Also provided is a method of preparing fibers containing particles of a ferroelectric material. The method includes destructuring the ferroelectric material in the presence of a liquid and a surfactant to give destructured particles; the liquid is a solvent for the surfactant and the surfactant is adapted to stabilize the destructured particles against agglomeration. A blend of the stabilized, destructured ferroelectric material particles and a thermoplastic polymer is then formed and extruded to form fibers. The extruded fibers may be collected on a moving foraminous support to form a nonwoven web and, if desired, may be exposed to an electric field. The fiber of the present invention, especially when in the form of a nonwoven web, is especially suited as a filtration medium. For example, the nonwoven web may be adapted to remove particulate matter from a gaseous stream.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65356296A | 1996-05-24 | 1996-05-24 | |
US08/653,562 | 1996-05-24 | ||
US08/762,213 US6162535A (en) | 1996-05-24 | 1996-12-06 | Ferroelectric fibers and applications therefor |
US08/762,213 | 1996-12-06 | ||
PCT/US1997/008482 WO1997044509A1 (en) | 1996-05-24 | 1997-05-15 | Ferroelectric fibers and applications therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2252516A1 true CA2252516A1 (en) | 1997-11-27 |
CA2252516C CA2252516C (en) | 2005-07-19 |
Family
ID=27096535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2252516 Expired - Lifetime CA2252516C (en) | 1996-05-24 | 1997-05-15 | Ferroelectric fibers and applications therefor |
Country Status (9)
Country | Link |
---|---|
US (2) | US6162535A (en) |
EP (1) | EP0902851B1 (en) |
KR (1) | KR100432466B1 (en) |
CN (1) | CN1179072C (en) |
AU (1) | AU722436B2 (en) |
BR (1) | BR9708956A (en) |
CA (1) | CA2252516C (en) |
DE (1) | DE69732770T2 (en) |
WO (1) | WO1997044509A1 (en) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090235933A1 (en) * | 2008-08-26 | 2009-09-24 | Trutek Corp. | Electrostatically charged mask filter products and method for increased filtration efficiency |
US6162535A (en) * | 1996-05-24 | 2000-12-19 | Kimberly-Clark Worldwide, Inc. | Ferroelectric fibers and applications therefor |
DE69804361T2 (en) | 1998-05-13 | 2002-10-10 | Texel Inc | FRICTION AIR FILTER |
BR9911631B1 (en) | 1998-06-30 | 2009-12-01 | electret material. | |
US6649547B1 (en) | 2000-08-31 | 2003-11-18 | Kimberly-Clark Worldwide, Inc. | Integrated nonwoven laminate material |
CN100503717C (en) * | 2000-09-05 | 2009-06-24 | 唐纳森公司 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures |
US6743273B2 (en) | 2000-09-05 | 2004-06-01 | Donaldson Company, Inc. | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures |
CN1222832C (en) * | 2002-07-15 | 2005-10-12 | 三星电子株式会社 | Electronic photoetching equipment with pattern emitter |
US20100313890A1 (en) * | 2002-09-16 | 2010-12-16 | Messier Pierre J | Protective mask with breathable filtering face seal |
US6928657B2 (en) * | 2002-10-25 | 2005-08-16 | Kimberly-Clark Worldwide, Inc. | Face mask having hook and loop type fastener |
US20040078860A1 (en) * | 2002-10-25 | 2004-04-29 | Bell Daryl Steven | Single piece face mask |
US7032751B2 (en) * | 2002-12-19 | 2006-04-25 | Kimberly-Clark Worldwide, Inc. | Dispensing assembly for single piece face mask |
US7045211B2 (en) * | 2003-07-31 | 2006-05-16 | Kimberly-Clark Worldwide, Inc. | Crimped thermoplastic multicomponent fiber and fiber webs and method of making |
US7097694B1 (en) * | 2003-12-04 | 2006-08-29 | Fleetguard, Inc. | High performance, high efficiency filter |
US20060057377A1 (en) * | 2003-12-19 | 2006-03-16 | U.S.A.As Represented By The Administrator Of The National Aeronautics And Space Administration | Electrospun electroactive polymers |
US20050148266A1 (en) * | 2003-12-30 | 2005-07-07 | Myers David L. | Self-supporting pleated electret filter media |
US7413586B2 (en) * | 2004-02-27 | 2008-08-19 | Intel Corporation | In-tool and out-of-tool protection of extreme ultraviolet (EUV) reticles |
KR20070039481A (en) * | 2004-04-12 | 2007-04-12 | 폴리머 그룹, 인크 | Method of making electro-conductive substrates |
KR100616730B1 (en) | 2004-07-26 | 2006-08-28 | 한국표준과학연구원 | Ferroelectric Nano Wire and Method of fabricating the same |
US7846530B2 (en) * | 2004-09-27 | 2010-12-07 | Kimberly-Clark Worldwide, Inc. | Creped electret nonwoven wiper |
US20060079145A1 (en) * | 2004-10-13 | 2006-04-13 | Hollingsworth & Vose Company | Filter media with charge stabilizing and enhancing additives |
JP4355945B2 (en) * | 2004-11-08 | 2009-11-04 | 住友金属鉱山株式会社 | Near-infrared absorbing fiber and fiber product using the same |
DE102005042372B3 (en) * | 2005-09-07 | 2007-01-18 | Dräger Medical AG & Co. KG | Artificial respiration and/or anesthetic device comprises hydrophilic polymer material surface that contains silver particle and mineral filler such as zeolite, silicon dioxide, titanium dioxide, alumina, and zircon oxide |
JP5261896B2 (en) * | 2006-07-27 | 2013-08-14 | ダイキン工業株式会社 | Coating composition |
US7642208B2 (en) * | 2006-12-14 | 2010-01-05 | Kimberly-Clark Worldwide, Inc. | Abrasion resistant material for use in various media |
DE102007001451A1 (en) | 2007-01-03 | 2008-07-10 | Behr Gmbh & Co. Kg | Heating device for motor vehicle, has air through-flowable structure made from electrically conductive foil, which is electrically heated for warming up air |
US20090326128A1 (en) * | 2007-05-08 | 2009-12-31 | Javier Macossay-Torres | Fibers and methods relating thereto |
US7820100B2 (en) | 2007-05-17 | 2010-10-26 | Garfield Industries, Inc. | System and method for photocatalytic oxidation air filtration using a substrate with photocatalyst particles powder coated thereon |
WO2009103673A1 (en) * | 2008-02-19 | 2009-08-27 | Nanogate Ag | Electret coating on a substrate |
DE102008013941A1 (en) * | 2008-03-12 | 2009-09-17 | Nanogate Ag | Electret coating on a substrate, useful e.g. for finishing textiles and carpets, producing filters, preferably for filtering air and water, and in sensors, comprises non-magnetic particles with inorganic coating and/or magnetic particles |
KR101155077B1 (en) * | 2008-06-16 | 2012-06-12 | 코오롱글로텍주식회사 | Hydrophobic polypropylene staple fibers with dielectric properties and method of producing the same, nonwoven made of them |
US9390857B2 (en) * | 2008-09-30 | 2016-07-12 | General Electric Company | Film capacitor |
US8021996B2 (en) | 2008-12-23 | 2011-09-20 | Kimberly-Clark Worldwide, Inc. | Nonwoven web and filter media containing partially split multicomponent fibers |
EP3508641B1 (en) | 2010-06-17 | 2020-08-05 | Washington University | Biomedical patches with aligned fibers |
US9074301B2 (en) * | 2010-10-25 | 2015-07-07 | Rick L. Chapman | Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents |
KR101125253B1 (en) * | 2011-10-28 | 2012-03-21 | 주식회사 지클로 | Skin-core fiber comprising anionic polymer salt and cellulose, and method for manufacturing the same |
US9099384B2 (en) | 2012-02-15 | 2015-08-04 | Drexel University | Charge ordered vertical transistors |
EP3824853B1 (en) | 2012-09-21 | 2023-07-26 | Washington University | Biomedical patches with spatially arranged fibers |
JP6109334B2 (en) * | 2012-12-14 | 2017-04-05 | スリーエム イノベイティブ プロパティズ カンパニー | Non-woven electret fiber web and method for producing the same |
KR101433332B1 (en) | 2013-03-18 | 2014-08-22 | 한국과학기술원 | Barium Hexaferrite Nanofiber Filter and Method for Removing Heavy Metals and Seperating Magnetic Nano Particles Using the Same |
EP3058999B1 (en) * | 2013-10-15 | 2021-09-15 | Yupo Corporation | Filter |
CN103657257B (en) * | 2013-12-05 | 2015-11-18 | 福建鑫华股份有限公司 | A kind of Efficient electret filtration material and preparation method thereof |
US20150247281A1 (en) | 2014-02-28 | 2015-09-03 | Avent, Inc. | Reduced medical wet packs, post steam sterilization |
US9476146B2 (en) * | 2014-09-11 | 2016-10-25 | Clopay Plastic Products Company, Inc. | Polymeric materials providing improved infrared emissivity |
US10632228B2 (en) | 2016-05-12 | 2020-04-28 | Acera Surgical, Inc. | Tissue substitute materials and methods for tissue repair |
CN107088473B (en) * | 2017-06-13 | 2020-04-10 | 青岛海纳能源环保科技开发有限公司 | Preparation and use method of polar substance adsorption separation and purification material |
CN109746120B (en) * | 2017-11-03 | 2021-02-26 | 北京中科艾加科技有限公司 | Filter device comprising piezoelectric composite material and application of filter device in adsorption of atmospheric particulates |
EP3534423A1 (en) | 2018-03-01 | 2019-09-04 | SABIC Global Technologies B.V. | Perovskite quantum dot layer |
CN109103280B (en) * | 2018-07-24 | 2020-01-07 | 东南大学 | Solar cell with all-inorganic perovskite ferroelectric fiber composite structure and preparation method thereof |
KR102619564B1 (en) * | 2018-11-21 | 2024-01-02 | (주)엘엑스하우시스 | fiber composition for window filter, and window filter comprising the same, and manufacturing method of window filter |
KR102202190B1 (en) * | 2019-03-08 | 2021-01-13 | 주식회사 성창오토텍 | Micro fiber including ferroelectric nanopowder |
KR102534327B1 (en) * | 2019-04-16 | 2023-05-19 | (주)엘엑스하우시스 | Window filter and manufacturing method of window filter |
CN115243778A (en) * | 2020-03-02 | 2022-10-25 | 纳米复合技术股份有限公司 | Carbon nanotube sheet for air or water purification |
WO2022157284A1 (en) * | 2021-01-25 | 2022-07-28 | Sabic Global Technologies B.V. | Piezoelectric textiles produced via electrospinning |
CN113457279B (en) * | 2021-05-25 | 2023-08-15 | 惠州中科华洋材料科技有限公司 | Preparation method of felt layer for rapidly decomposing ozone in real time and filter material |
Family Cites Families (110)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3016599A (en) * | 1954-06-01 | 1962-01-16 | Du Pont | Microfiber and staple fiber batt |
CH457674A (en) * | 1963-09-12 | 1968-06-15 | Ciba Geigy | Process for the production of pigment preparations |
US3341394A (en) * | 1966-12-21 | 1967-09-12 | Du Pont | Sheets of randomly distributed continuous filaments |
US3542615A (en) * | 1967-06-16 | 1970-11-24 | Monsanto Co | Process for producing a nylon non-woven fabric |
DE1785158C3 (en) * | 1968-08-17 | 1979-05-17 | Metallgesellschaft Ag, 6000 Frankfurt | Round nozzle for pulling off and depositing threads to form a thread fleece |
US3849241A (en) * | 1968-12-23 | 1974-11-19 | Exxon Research Engineering Co | Non-woven mats by melt blowing |
US3978185A (en) * | 1968-12-23 | 1976-08-31 | Exxon Research And Engineering Company | Melt blowing process |
DE2048006B2 (en) * | 1969-10-01 | 1980-10-30 | Asahi Kasei Kogyo K.K., Osaka (Japan) | Method and device for producing a wide nonwoven web |
DE1950669C3 (en) * | 1969-10-08 | 1982-05-13 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the manufacture of nonwovens |
US3704198A (en) * | 1969-10-09 | 1972-11-28 | Exxon Research Engineering Co | Nonwoven polypropylene mats of increased strip tensile strength |
US3755527A (en) * | 1969-10-09 | 1973-08-28 | Exxon Research Engineering Co | Process for producing melt blown nonwoven synthetic polymer mat having high tear resistance |
US3745142A (en) * | 1971-07-29 | 1973-07-10 | Hercules Inc | Process for preparing highly filled polyolefins |
US3767444A (en) * | 1971-12-01 | 1973-10-23 | Siegle & Co Gmbh G | Pigment composition for coloring polypropylene |
US3746142A (en) | 1971-12-13 | 1973-07-17 | Ncr | Line printer paper tensioning mechanism |
BE793649A (en) * | 1972-01-04 | 1973-07-03 | Rhone Poulenc Textile | DEVICE FOR THE MANUFACTURE OF NONWOVEN CONTINUOUS FILAMENT TABLECLOTH |
GB1453447A (en) | 1972-09-06 | 1976-10-20 | Kimberly Clark Co | Nonwoven thermoplastic fabric |
NL160303C (en) | 1974-03-25 | 1979-10-15 | Verto Nv | METHOD FOR MANUFACTURING A FIBER FILTER |
US4100324A (en) * | 1974-03-26 | 1978-07-11 | Kimberly-Clark Corporation | Nonwoven fabric and method of producing same |
US3959421A (en) | 1974-04-17 | 1976-05-25 | Kimberly-Clark Corporation | Method for rapid quenching of melt blown fibers |
DE2425196A1 (en) * | 1974-05-24 | 1975-12-11 | Hoechst Ag | METHOD OF MANUFACTURING ELECTRICALLY CONDUCTIVE FLEECE |
US4100319A (en) * | 1975-07-14 | 1978-07-11 | Kimberly-Clark Corporation | Stabilized nonwoven web |
US4064605A (en) * | 1975-08-28 | 1977-12-27 | Toyobo Co., Ltd. | Method for producing non-woven webs |
US4091140A (en) * | 1976-05-10 | 1978-05-23 | Johnson & Johnson | Continuous filament nonwoven fabric and method of manufacturing the same |
CA1073648A (en) * | 1976-08-02 | 1980-03-18 | Edward R. Hauser | Web of blended microfibers and crimped bulking fibers |
US4215682A (en) | 1978-02-06 | 1980-08-05 | Minnesota Mining And Manufacturing Company | Melt-blown fibrous electrets |
JPS5584420A (en) | 1978-12-20 | 1980-06-25 | Chisso Corp | Method of making side by side conjugate fiber with no crimp |
US4229187A (en) | 1979-04-09 | 1980-10-21 | Gamewell Manufacturing, Inc. | Movable, continuously changing, self-charging electrostatic filter |
US4342849A (en) | 1979-09-10 | 1982-08-03 | The University Of Akron | Novel telechelic polymers and processes for the preparation thereof |
US4308223A (en) * | 1980-03-24 | 1981-12-29 | Albany International Corp. | Method for producing electret fibers for enhancement of submicron aerosol filtration |
US4405297A (en) * | 1980-05-05 | 1983-09-20 | Kimberly-Clark Corporation | Apparatus for forming nonwoven webs |
US4340563A (en) * | 1980-05-05 | 1982-07-20 | Kimberly-Clark Corporation | Method for forming nonwoven webs |
US4375718A (en) | 1981-03-12 | 1983-03-08 | Surgikos, Inc. | Method of making fibrous electrets |
GB2113471B (en) * | 1981-11-18 | 1986-02-05 | Unitika Ltd | High dielectric-constant film |
DE3151294C2 (en) * | 1981-12-24 | 1986-01-23 | Fa. Carl Freudenberg, 6940 Weinheim | Spunbonded polypropylene fabric with a low coefficient of fall |
WO1984003193A1 (en) * | 1983-02-04 | 1984-08-16 | Minnesota Mining & Mfg | Method and apparatus for manufacturing an electret filter medium |
US4513049A (en) | 1983-04-26 | 1985-04-23 | Mitsui Petrochemical Industries, Ltd. | Electret article |
JPS60126310A (en) * | 1983-12-09 | 1985-07-05 | Mitsubishi Rayon Co Ltd | Antistatic fiber |
DE3401639A1 (en) * | 1984-01-19 | 1985-07-25 | Hoechst Ag, 6230 Frankfurt | DEVICE FOR PRODUCING A SPINNING FLEECE |
JPS60168511A (en) * | 1984-02-10 | 1985-09-02 | Japan Vilene Co Ltd | Production of electret filter |
DE3509857C2 (en) * | 1984-03-19 | 1994-04-28 | Toyo Boseki | Electretized dust filter and its manufacture |
JPS60196921A (en) * | 1984-03-19 | 1985-10-05 | 東洋紡績株式会社 | Method of producing electreted material |
KR900001481B1 (en) * | 1984-04-18 | 1990-03-12 | 가부시기가이샤 히다찌세이사꾸쇼 | Gas-insulated electrical apparatus |
JPS60225416A (en) * | 1984-04-24 | 1985-11-09 | 三井化学株式会社 | High performance electret and air filter |
US4874659A (en) | 1984-10-24 | 1989-10-17 | Toray Industries | Electret fiber sheet and method of producing same |
US4663220A (en) * | 1985-07-30 | 1987-05-05 | Kimberly-Clark Corporation | Polyolefin-containing extrudable compositions and methods for their formation into elastomeric products including microfibers |
US4622259A (en) | 1985-08-08 | 1986-11-11 | Surgikos, Inc. | Nonwoven medical fabric |
US4644045A (en) * | 1986-03-14 | 1987-02-17 | Crown Zellerbach Corporation | Method of making spunbonded webs from linear low density polyethylene |
JPS6385112A (en) * | 1986-09-25 | 1988-04-15 | Teijin Ltd | Electrically conductive conjugate fiber |
JPS63202663A (en) * | 1987-02-18 | 1988-08-22 | Teijin Ltd | Antistatic thermoplastic polymer composition |
JPS63288216A (en) * | 1987-05-21 | 1988-11-25 | Teijin Ltd | Antistatic polyester fiber |
US4969457A (en) | 1987-10-02 | 1990-11-13 | Tecnol, Inc. | Body fluids barrier mask |
DE3839956C2 (en) * | 1987-11-28 | 1998-07-02 | Toyo Boseki | Electret film and process for its production |
CA1325983C (en) | 1988-01-12 | 1994-01-11 | Satoshi Matsuura | Processes for preparing electret filters |
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 (en) * | 1988-05-13 | 1997-11-05 | 東レ株式会社 | Electret material |
US5270121A (en) * | 1988-08-31 | 1993-12-14 | Rohm And Haas Company | Polymer-coated articles |
US4963390A (en) | 1988-10-05 | 1990-10-16 | The Aerospace Corporation | Metallo-organic solution deposition (MOSD) of transparent, crystalline ferroelectric films |
US4917942A (en) | 1988-12-22 | 1990-04-17 | Minnesota Mining And Manufacturing Company | Nonwoven filter material |
US5070223A (en) * | 1989-03-01 | 1991-12-03 | Colasante David A | Microwave reheatable clothing and toys |
US5188885A (en) | 1989-09-08 | 1993-02-23 | Kimberly-Clark Corporation | Nonwoven fabric laminates |
CA2027687C (en) | 1989-11-14 | 2002-12-31 | Douglas C. Sundet | Filtration media and method of manufacture |
CA2037942A1 (en) | 1990-03-12 | 1991-09-13 | Satoshi Matsuura | Process for producing an electret, a film electret, and an electret filter |
US5540756A (en) | 1990-03-19 | 1996-07-30 | Hoppitt; Bernard | Electrostatic filter and method of filtering dust |
US5204174A (en) | 1990-05-04 | 1993-04-20 | Kimberly-Clark Corporation | Fine fiber webs with improved physical properties |
US5165979A (en) | 1990-05-04 | 1992-11-24 | Kimberly-Clark Corporation | Three-dimensional polymer webs with improved physical properties |
US5271883A (en) | 1990-06-18 | 1993-12-21 | Kimberly-Clark Corporation | Method of making nonwoven web with improved barrier properties |
JPH05214A (en) | 1990-11-30 | 1993-01-08 | Mitsui Petrochem Ind Ltd | Electret filter |
US5459188A (en) | 1991-04-11 | 1995-10-17 | Peach State Labs, Inc. | Soil resistant fibers |
JPH04313313A (en) | 1991-04-12 | 1992-11-05 | Mitsubishi Paper Mills Ltd | Filter medium for liquid filtering |
JPH04330907A (en) | 1991-05-02 | 1992-11-18 | Mitsui Petrochem Ind Ltd | Manufacture of electret filter |
TW206266B (en) | 1991-06-12 | 1993-05-21 | Toray Industries | |
US5238634A (en) | 1992-01-07 | 1993-08-24 | Exxon Chemical Patents Inc. | Disentangled chain telechelic polymers |
US5407581A (en) | 1992-03-17 | 1995-04-18 | Asahi Medical Co., Ltd. | Filter medium having a limited surface negative charge for treating a blood material |
US5382400A (en) | 1992-08-21 | 1995-01-17 | Kimberly-Clark Corporation | Nonwoven multicomponent polymeric fabric and method for making same |
US5350624A (en) | 1992-10-05 | 1994-09-27 | Kimberly-Clark Corporation | Abrasion resistant fibrous nonwoven composite structure |
US5401446A (en) * | 1992-10-09 | 1995-03-28 | The University Of Tennessee Research Corporation | Method and apparatus for the electrostatic charging of a web or film |
JP2849291B2 (en) * | 1992-10-19 | 1999-01-20 | 三井化学株式会社 | Electretized nonwoven fabric and method for producing the same |
US5765556A (en) | 1992-12-16 | 1998-06-16 | Tecnol Medical Products, Inc. | Disposable aerosol mask with face shield |
US5482772A (en) | 1992-12-28 | 1996-01-09 | Kimberly-Clark Corporation | Polymeric strands including a propylene polymer composition and nonwoven fabric and articles made therewith |
EP0623941B1 (en) * | 1993-03-09 | 1997-08-06 | Hoechst Celanese Corporation | Polymer electrets with improved charge stability |
DE59410352D1 (en) * | 1993-03-09 | 2004-03-11 | Trevira Gmbh | Electret fibers with improved charge stability, process for their production, and textile material containing these electret fibers |
US5405913A (en) | 1993-03-22 | 1995-04-11 | The University Of Akron | Free radical copper(II)-enolate polymerization initiators |
US5571864A (en) | 1993-03-23 | 1996-11-05 | Regents Of The University Of Minnesota | Miscible polyolefin blends with modifying polyolefin having matching segment lengths |
AU669420B2 (en) | 1993-03-26 | 1996-06-06 | Minnesota Mining And Manufacturing Company | Oily mist resistant electret filter media |
US5607766A (en) | 1993-03-30 | 1997-03-04 | American Filtrona Corporation | Polyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom |
CA2111071E (en) | 1993-06-30 | 2011-08-23 | Sonya Nicholson Bourne | Single step sterilization wrap system |
US5409765A (en) | 1993-08-04 | 1995-04-25 | Fiberweb North America, Inc. | Nonwoven webs made from ionomers |
US5658640A (en) | 1993-08-17 | 1997-08-19 | Minnesota Mining And Manufacturing Company | Electret filter media having an undulated surface |
DE4327595A1 (en) * | 1993-08-17 | 1995-02-23 | Hoechst Ag | Compositions with improved electrostatic properties containing aromatic polyamides, molded articles made therefrom and their use and process for their production |
CA2111172A1 (en) | 1993-09-23 | 1995-03-24 | Dennis S. Everhart | Nonwoven fabric formed from alloy fibers |
US5553608A (en) | 1994-07-20 | 1996-09-10 | Tecnol Medical Products, Inc. | Face mask with enhanced seal and method |
US5688157A (en) | 1994-04-05 | 1997-11-18 | Kimberly-Clark Worldwide, Inc. | Nonwoven fabric laminate with enhanced barrier properties |
US5482765A (en) | 1994-04-05 | 1996-01-09 | Kimberly-Clark Corporation | Nonwoven fabric laminate with enhanced barrier properties |
US5597645A (en) | 1994-08-30 | 1997-01-28 | Kimberly-Clark Corporation | Nonwoven filter media for gas |
DE9414040U1 (en) * | 1994-08-30 | 1995-01-19 | Hoechst Ag | Nonwovens made from electret fiber blends with improved charge stability |
CN1067910C (en) | 1994-10-31 | 2001-07-04 | 金伯利-克拉克环球有限公司 | High density nonwowen filter media |
US6001299A (en) * | 1995-02-21 | 1999-12-14 | Japan Vilene Company, Ltd. | Process and apparatus for manufacturing an electret article |
US5645627A (en) | 1995-02-28 | 1997-07-08 | Hollingsworth & Vose Company | Charge stabilized electret filter media |
US5620785A (en) | 1995-06-07 | 1997-04-15 | Fiberweb North America, Inc. | Meltblown barrier webs and processes of making same |
US5610455A (en) | 1995-06-29 | 1997-03-11 | Minnesota Mining And Manufacturing Company | Electret containing syndiotactic vinyl aromatic polymer |
US5652048A (en) | 1995-08-02 | 1997-07-29 | Kimberly-Clark Worldwide, Inc. | High bulk nonwoven sorbent |
US5609947A (en) | 1995-09-27 | 1997-03-11 | Tonen Chemical Corporation | Laminated non-woven fabric filtering medium and method for producing same |
US5932309A (en) * | 1995-09-28 | 1999-08-03 | Alliedsignal Inc. | Colored articles and compositions and methods for their fabrication |
US5709735A (en) | 1995-10-20 | 1998-01-20 | Kimberly-Clark Worldwide, Inc. | High stiffness nonwoven filter medium |
US5721180A (en) | 1995-12-22 | 1998-02-24 | Pike; Richard Daniel | Laminate filter media |
US5707735A (en) | 1996-03-18 | 1998-01-13 | Midkiff; David Grant | Multilobal conjugate fibers and fabrics |
US6162535A (en) * | 1996-05-24 | 2000-12-19 | Kimberly-Clark Worldwide, Inc. | Ferroelectric fibers and applications therefor |
US5800866A (en) * | 1996-12-06 | 1998-09-01 | Kimberly-Clark Worldwide, Inc. | Method of preparing small particle dispersions |
BR9911631B1 (en) * | 1998-06-30 | 2009-12-01 | electret material. | |
US20040000313A1 (en) * | 2002-06-28 | 2004-01-01 | Kimberly-Clark Worldwide, Inc. | Spunbonded/meltblown/spunbonded laminate face mask |
-
1996
- 1996-12-06 US US08/762,213 patent/US6162535A/en not_active Expired - Lifetime
-
1997
- 1997-05-15 CA CA 2252516 patent/CA2252516C/en not_active Expired - Lifetime
- 1997-05-15 KR KR10-1998-0709485A patent/KR100432466B1/en active IP Right Grant
- 1997-05-15 DE DE1997632770 patent/DE69732770T2/en not_active Expired - Lifetime
- 1997-05-15 BR BR9708956A patent/BR9708956A/en not_active IP Right Cessation
- 1997-05-15 WO PCT/US1997/008482 patent/WO1997044509A1/en active IP Right Grant
- 1997-05-15 CN CNB971967156A patent/CN1179072C/en not_active Expired - Lifetime
- 1997-05-15 AU AU31325/97A patent/AU722436B2/en not_active Expired
- 1997-05-15 EP EP97926603A patent/EP0902851B1/en not_active Expired - Lifetime
-
1999
- 1999-03-12 US US09/267,973 patent/US6858551B1/en not_active Expired - Fee Related
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CN1179072C (en) | 2004-12-08 |
CA2252516C (en) | 2005-07-19 |
BR9708956A (en) | 1999-08-03 |
CN1226293A (en) | 1999-08-18 |
EP0902851B1 (en) | 2005-03-16 |
AU722436B2 (en) | 2000-08-03 |
EP0902851A1 (en) | 1999-03-24 |
KR20000015931A (en) | 2000-03-15 |
DE69732770T2 (en) | 2006-04-13 |
AU3132597A (en) | 1997-12-09 |
WO1997044509A1 (en) | 1997-11-27 |
DE69732770D1 (en) | 2005-04-21 |
US6858551B1 (en) | 2005-02-22 |
KR100432466B1 (en) | 2004-07-16 |
US6162535A (en) | 2000-12-19 |
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