RU2003107850A - POLYMER, POLYMERIC MICROFIBER, POLYMERIC NANOFIBER AND AREAS OF APPLICATION INCLUDING FILTER DESIGNS - Google Patents

POLYMER, POLYMERIC MICROFIBER, POLYMERIC NANOFIBER AND AREAS OF APPLICATION INCLUDING FILTER DESIGNS

Info

Publication number
RU2003107850A
RU2003107850A RU2003107850/04A RU2003107850A RU2003107850A RU 2003107850 A RU2003107850 A RU 2003107850A RU 2003107850/04 A RU2003107850/04 A RU 2003107850/04A RU 2003107850 A RU2003107850 A RU 2003107850A RU 2003107850 A RU2003107850 A RU 2003107850A
Authority
RU
Russia
Prior art keywords
polymer
fiber
additive
thin fiber
nylon
Prior art date
Application number
RU2003107850/04A
Other languages
Russian (ru)
Other versions
RU2300543C2 (en
Inventor
Ху. Й. ЧАНГ
Джон Р. Б. ХОЛЛ
Марк А. ГОГИНС
Дуглас Г. КРОФУТ
Томас М. УИК
Original Assignee
Дональдсон Компани, Инк.
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
Priority claimed from US09/871,583 external-priority patent/US6743273B2/en
Application filed by Дональдсон Компани, Инк. filed Critical Дональдсон Компани, Инк.
Publication of RU2003107850A publication Critical patent/RU2003107850A/en
Application granted granted Critical
Publication of RU2300543C2 publication Critical patent/RU2300543C2/en

Links

Claims (24)

1. Полимерный состав, включающий полимер присоединения и приблизительно от 2 до 25 вес.% добавки, причем добавка содержит смолистый материал, имеющий молекулярный вес приблизительно от 500 до 3000 и ароматическую природу, в котором указанная добавка смешивается в полимере.1. A polymer composition comprising an addition polymer and from about 2 to 25 wt.% Additives, the additive containing a resinous material having a molecular weight of from about 500 to 3000 and an aromatic nature in which said additive is mixed in the polymer. 2. Состав по п.1, отличающийся тем, что добавка включает олигомер, содержащий третичный бутилфенол.2. The composition according to claim 1, characterized in that the additive includes an oligomer containing tertiary butylphenol. 3. Полимерный состав, содержащий полимер конденсации, отличающийся от сополимера, сформированного из циклического лактама и диамин мономера С6-10 или двукислотного мономера С6-10, и смолистая добавка, включающая олигомер, имеющий молекулярный вес приблизительно от 500 до 3000 и ароматическую природу, в котором добавка, смешивается в полимере конденсации.3. A polymer composition comprising a condensation polymer, different from a copolymer formed from cyclic lactam and a diamine monomer C 6-10 or a di-acid monomer C 6-10 , and a resinous additive comprising an oligomer having a molecular weight of from about 500 to 3000 and aromatic nature in which the additive is mixed in a condensation polymer. 4. Состав по п.3, отличающийся тем, что нейлоновый сополимер объединен со вторым нейлоновым полимером, причем второй нейлоновый полимер отличается по составу мономера или по молекулярному весу.4. The composition according to claim 3, characterized in that the nylon copolymer is combined with the second nylon polymer, and the second nylon polymer differs in the composition of the monomer or in molecular weight. 5. Состав по п.4, отличающийся тем, что полимеры обрабатываются с возможностью сформировать единственный полимерный состав, как он измерен дифференциальным сканирующим калориметром, показывающим однофазный материал.5. The composition according to claim 4, characterized in that the polymers are processed with the ability to form a single polymer composition, as it is measured by a differential scanning calorimeter showing a single-phase material. 6. Состав тонкого волокна, включающий полимер присоединения и приблизительно от 2 до 25 вес.% добавки, причем добавка содержит смолистый материал, имеющий молекулярный вес приблизительно от 500 до 3000 и ароматическую природу, в котором добавка смешивающийся в полимере.6. A fine fiber composition comprising an addition polymer and from about 2 to 25% by weight of the additive, the additive containing a resinous material having a molecular weight of from about 500 to 3000 and an aromatic nature in which the additive is miscible in the polymer. 7. Тонкое волокно по п.6, отличающееся тем, что добавка содержит гидрофобное покрытие на поверхности тонкого волокна.7. Thin fiber according to claim 6, characterized in that the additive contains a hydrophobic coating on the surface of the thin fiber. 8. Состав тонкого волокна, включающий полимер конденсации, отличающийся от сополимера циклического лактама и мономера диамина С6-10 или двукислотного мономера С6-10, и аддитивный состав, имеющий молекулярный вес приблизительно от 500 до 3000,8. The composition of the thin fiber, including a condensation polymer, different from a copolymer of cyclic lactam and monomer diamine C 6-10 or dicarbon monomer C 6-10 , and an additive composition having a molecular weight of from about 500 to 3000, 9. Тонкое волокно по п.8, отличающееся тем, что гидрофобное и олеофобное покрытие сформировано на волокне, имеющем гидрофильный состав.9. A thin fiber according to claim 8, characterized in that the hydrophobic and oleophobic coating is formed on a fiber having a hydrophilic composition. 10. Тонкое волокно, включающее волокно, имеющее диаметр приблизительно от 0,1 до 0,5 мкм и содержит продукт реакции реагента альдегида и смеси нейлона 4,6 и нейлона 6,6.10. A thin fiber comprising a fiber having a diameter of from about 0.1 to 0.5 microns and contains a reaction product of an aldehyde reagent and a mixture of nylon 4.6 and nylon 6.6. 11. Тонкое волокно по п.10, отличающееся тем, что тонкое волокно включает продукт реакции реагента альдегида и смеси нейлона 6 и нейлона 6,6 в присутствии спирта С1-24 и воды.11. The thin fiber of claim 10, wherein the thin fiber includes a reaction product of an aldehyde reagent and a mixture of nylon 6 and nylon 6.6 in the presence of alcohol C 1-24 and water. 12. Полимерный состав, содержащий полимерный продукт реакции нейлона 6 и нейлонового сополимера, включающего циклический лактам, мономер диамина С6-10 и двухкислотный мономер С6-10, и смолистая добавка, содержащая олигомер, имеющий молекулярный вес приблизительно от 500 до 3000 и ароматическую природу, в котором добавка смешивающийся в полимере конденсации.12. A polymeric composition comprising a polymeric reaction product of nylon 6 and a nylon copolymer comprising a cyclic lactam, a C 6-10 diamine monomer and a diacid monomer is a C 6-10, and the resinous additive comprising an oligomer having a molecular weight from about 500 to 3000 and an aromatic nature in which the additive is miscible in polymer condensation. 13. Полимерный Состав по п.12, отличающийся тем, что полимерное продукт реакции включает нейлон 6,6 и нейлоновый сополимер.13. The polymer composition according to item 12, wherein the polymer reaction product includes nylon 6.6 and a nylon copolymer. 14. Состав по п.12, отличающийся тем, что добавка содержит олигомер, включающий14. The composition according to p. 12, characterized in that the additive contains an oligomer, including
Figure 00000001
Figure 00000001
15. Фильтрующая среда, содержащая тонкое волокно, причем это тонкое волокно имеет размер приблизительно от 0,01 до 0,5 мкм и после выдержки на воздухе при 140°F(60°C) и относительной влажности 100% в течение от 1 до 16 ч, по меньшей мере, 50% волокна остается, в основном, неизменным.15. The filter medium containing a thin fiber, and this fine fiber has a size of from about 0.01 to 0.5 μm and after exposure to air at 140 ° F (60 ° C) and a relative humidity of 100% for 1 to 16 h, at least 50% of the fiber remains essentially unchanged. 16. Среда по п.15, отличающаяся тем, что слой тонкого волокна может быть подвергнут действию спиртового растворителя при температуре 70°F(21°C), и в которой после 5 мин остается, по меньшей мере, 50% волокна.16. The environment of claim 15, wherein the thin fiber layer can be exposed to an alcohol solvent at a temperature of 70 ° F (21 ° C), and in which at least 50% of the fiber remains after 5 minutes. 17. Среда по п.15, отличающаяся тем, что фильтрующая среда также включает тканую или нетканую подложку.17. The medium according to item 15, wherein the filter medium also includes a woven or non-woven substrate. 18. Среда по п.15, отличающаяся тем, что подложка включает электростатически спряденную полимерную нетканую ткань.18. The environment of claim 15, wherein the substrate comprises electrostatically spun polymer nonwoven fabric. 19. Среда по п.15, отличающаяся тем, что тонкое волокно включает микроволокно, имеющее диаметр приблизительно от 0,1 до 0,5 мкм.19. The medium according to item 15, wherein the thin fiber includes a microfiber having a diameter of from about 0.1 to 0.5 microns. 20. Среда по п.19, отличающаяся тем, что включает подложку и слой тонкого волокна.20. The medium according to claim 19, characterized in that it includes a substrate and a layer of thin fiber. 21. Способ изготовления материала из тонкого волокна, включающего волокна, имеющие диаметр приблизительно от 0,01 до 0,5 мкм, и поверхностное покрытие, имеющее толщину менее чем приблизительно 100 А; причем способ включает формирование раствора, содержащего низший спирт, воду или их смеси и приблизительно от 3 до приблизительно 30 вес.% полимерного состава, отличающегося от сополимера, сформированного из циклического лактама и мономера диамина С6-10 или двухкислотного мономера С6-10 и приблизительно от 2 до 25 вес.% добавки, на основе полимера; указанная добавка включает смолистый материал, имеющий молекулярный вес приблизительно от 500 до приблизительно 3000 и ароматическую природу, в котором добавка смешивается в полимере, при этом раствор полимера подвергается действию электрического поля с потенциалом более чем 10х103 вольт, в результате чего в растворе формируются ускоренные пряди раствора, которые при испарении растворителя образуют тонкое волокно, собирая тонкое волокно на подложке и подвергая тонкое волокно и подложку термической обработке, при этом термическая обработка повышает температуру тонкого волокна до температуры, не превышающей точки плавления полимера.21. A method of manufacturing a material of thin fiber, including fibers having a diameter of from about 0.01 to 0.5 microns, and a surface coating having a thickness of less than about 100 A; wherein the method comprises forming a solution containing a lower alcohol, water or mixtures thereof and from about 3 to about 30 wt.% of the polymeric composition, different from the copolymer formed from a cyclic lactam and a C 6-10 diamine monomer or a C6-10 diacid monomer and from about 2 to 25% by weight of a polymer based additive; said additive includes a resinous material having a molecular weight of from about 500 to about 3000 and an aromatic nature in which the additive is mixed in the polymer, wherein the polymer solution is exposed to an electric field with a potential of more than 10x10 3 volts, resulting in the formation of accelerated strands in the solution solution, which upon evaporation of the solvent form a thin fiber, collecting the thin fiber on the substrate and subjecting the thin fiber and the substrate to heat treatment, while heat treatment It increases the fine fiber temperature to a temperature not exceeding the polymer melting point. 22. Способ по п.21, отличающийся тем, что полимер содержит полимер присоединения.22. The method according to item 21, wherein the polymer contains an addition polymer. 23. Способ по п.21, отличающийся тем, что полимер содержит смесь нейлонового гомополимера и нейлонового сополимера, включающего структурные единицы, производные от циклического лактама, мономера диамина С6-10 и двухкислотного мономера С6-10.23. The method according to claim 21, characterized in that the polymer mixture comprises a nylon homopolymer and a nylon copolymer comprising structural units derived from a cyclic lactam, a C 6-10 diamine monomer and a diacid monomer C 6-10. 24. Способ создания тонковолоконного материала, содержащего волокна, имеющие диаметр приблизительно от 0,01 до 2 мкм, при этом волокно включает линейное волокно, формирующее полимер и катализатор; указанный способ включает формирование раствора, включающего низший спирт, воду или их смеси и приблизительно от 3 до 30 вес.% полимерного состава, при этом полимерный раствор подвергается воздействию электрического поля потенциалом более порогового потенциала в вольтах, при котором в растворе формируются ускоренные пряди раствора, которые высушивают до тонкого волокна, собирая тонкое волокно на подложке и подвергая тонкое волокно термической обработке, при этом термическая обработка повышает температуру тонкого волокна до температуре, не превышающей точки плавления полимера, формирующего волокно.24. A method of creating a thin fiber material containing fibers having a diameter of from about 0.01 to 2 μm, the fiber comprising a linear fiber forming a polymer and a catalyst; said method includes forming a solution comprising lower alcohol, water or mixtures thereof and from about 3 to 30 wt.% polymer composition, wherein the polymer solution is exposed to an electric field with a potential of more than a threshold potential in volts, in which accelerated strands of the solution are formed in the solution, which are dried to a thin fiber, collecting the thin fiber on the substrate and subjecting the thin fiber to heat treatment, while the heat treatment raises the temperature of the thin fiber to a temperature not exceeding the melting point of the fiber-forming polymer.
RU2003107850/04A 2001-05-31 2001-08-09 Fine fiber compositions, methods for preparation thereof, and a method of manufacturing fine-fiber material RU2300543C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US60/230,138 2000-09-05
US09/871,583 2001-05-31
US09/871,583 US6743273B2 (en) 2000-09-05 2001-05-31 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures

Publications (2)

Publication Number Publication Date
RU2003107850A true RU2003107850A (en) 2004-09-20
RU2300543C2 RU2300543C2 (en) 2007-06-10

Family

ID=38312649

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003107850/04A RU2300543C2 (en) 2001-05-31 2001-08-09 Fine fiber compositions, methods for preparation thereof, and a method of manufacturing fine-fiber material

Country Status (2)

Country Link
US (1) US7316723B2 (en)
RU (1) RU2300543C2 (en)

Families Citing this family (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6743273B2 (en) 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US20110197556A1 (en) 2004-11-02 2011-08-18 Baldwin Filters, Inc. Filter element
US20060091061A1 (en) * 2004-11-02 2006-05-04 Baldwin Filters, Inc. Filter assembly with sealing system
US20060091064A1 (en) * 2004-11-02 2006-05-04 Baldwin Filters, Inc. Filter apparatus with separable seal support frame
US20070186528A1 (en) * 2006-02-15 2007-08-16 Baldwin Filters, Inc. Fluted filter apparatus
US7318851B2 (en) 2004-11-02 2008-01-15 Baldwin Filters, Inc. Filter element
US7931725B2 (en) 2004-11-02 2011-04-26 Baldwin Filters, Inc. Fluted filter apparatus
US7909954B2 (en) * 2004-11-03 2011-03-22 Baldwin Filters, Inc. Method and apparatus for winding a filter media pack
US8325097B2 (en) * 2006-01-14 2012-12-04 Research In Motion Rf, Inc. Adaptively tunable antennas and method of operation therefore
US7753982B2 (en) 2006-02-17 2010-07-13 Baldwin Filters, Inc. Filter with drained jacket, seal indicator/lock means, and seal baffle
US9757676B2 (en) 2006-12-06 2017-09-12 Baldwin Filters, Inc. Method and apparatus for winding a filter element
US10040020B2 (en) 2006-12-06 2018-08-07 Baldwin Filters, Inc. Fluid filter apparatus having filter media wound about a winding frame
US8303693B2 (en) * 2007-04-26 2012-11-06 The Hong Kong Polytechnic University Nanofiber filter facemasks and cabin filters
US20090326128A1 (en) * 2007-05-08 2009-12-31 Javier Macossay-Torres Fibers and methods relating thereto
US9545593B2 (en) * 2007-11-01 2017-01-17 Baldwin Filters, Inc. Winding core pressure relief for fluted filter
US8986432B2 (en) 2007-11-09 2015-03-24 Hollingsworth & Vose Company Meltblown filter medium, related applications and uses
WO2009062009A2 (en) * 2007-11-09 2009-05-14 Hollingsworth & Vose Company Meltblown filter medium
US8425644B2 (en) * 2008-01-31 2013-04-23 Anders Sundvik High flow V-bank filter
US8231378B2 (en) * 2008-03-17 2012-07-31 The Board Of Regents Of The University Of Texas System Superfine fiber creating spinneret and uses thereof
TWI365102B (en) * 2008-05-05 2012-06-01 Ind Tech Res Inst Nanofiber filter and method for manufacturing the same
US8673040B2 (en) 2008-06-13 2014-03-18 Donaldson Company, Inc. Filter construction for use with air in-take for gas turbine and methods
PL2294252T3 (en) * 2008-06-24 2014-02-28 Univ Stellenbosch Method and apparatus for the production of fine fibres
US7959703B2 (en) * 2008-06-30 2011-06-14 Baldwin Filters, Inc. Fluted filter with integrated frame
US8048187B2 (en) * 2008-06-30 2011-11-01 Baldwin Filters, Inc. Filter frame attachment and fluted filter having same
US8206481B2 (en) 2009-02-27 2012-06-26 Bha Group, Inc. HEPA (H-10) performance synthetic nonwoven and nanofiber composite filter media
US8950587B2 (en) 2009-04-03 2015-02-10 Hollingsworth & Vose Company Filter media suitable for hydraulic applications
US8262780B2 (en) * 2009-07-22 2012-09-11 Bha Group, Inc High performance gas turbine inlet filter (HEPA) using membrane media
WO2011013121A1 (en) * 2009-07-27 2011-02-03 Airfreedom Ltd. Improved filter configuration
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
KR101223624B1 (en) 2010-09-17 2013-01-17 삼성에스디아이 주식회사 Binder composition for rechargeable lithium battery, composition for forming negative active material layer and rechargeable lithium battery including the same
RU2447207C1 (en) * 2010-10-19 2012-04-10 Учреждение Российской академии наук Институт высокомолекулярных соединений РАН Method of producing nanofibres from aliphatic copolyamides
US20120152821A1 (en) 2010-12-17 2012-06-21 Hollingsworth & Vose Company Fine fiber filter media and processes
US10155186B2 (en) 2010-12-17 2018-12-18 Hollingsworth & Vose Company Fine fiber filter media and processes
US8647540B2 (en) 2011-02-07 2014-02-11 Fiberio Technology Corporation Apparatuses having outlet elements and methods for the production of microfibers and nanofibers
DE102011111738A1 (en) * 2011-08-26 2013-02-28 Neenah Gessner Gmbh Multi-layer filter material and filter element made therefrom
CN106929933B (en) 2011-09-21 2019-09-03 唐纳森公司 The fiber made of soluble polymer
CA2849079C (en) 2011-09-21 2019-06-11 Donaldson Company, Inc. Fine fibers made from polymer crosslinked with resinous aldehyde composition
AU2013293139B2 (en) 2012-07-25 2017-11-30 Baldwin Filters, Inc. Filter housing, fluted filter and safety filter
US9120046B2 (en) 2012-08-01 2015-09-01 Bha Altair, Llc Filter media and filter device comprised thereof
US9149748B2 (en) 2012-11-13 2015-10-06 Hollingsworth & Vose Company Multi-layered filter media
US11090590B2 (en) 2012-11-13 2021-08-17 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
US9149749B2 (en) 2012-11-13 2015-10-06 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
EP2964817A1 (en) 2013-03-09 2016-01-13 Donaldson Company, Inc. Fine fibers made from reactive additives
WO2014164127A1 (en) 2013-03-09 2014-10-09 Donaldson Company, Inc. Nonwoven filtration media including microfibrillated cellulose fibers
EP3903904A1 (en) 2013-03-15 2021-11-03 Donaldson Company, Inc. Filter media and elements
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
US9474994B2 (en) 2013-06-17 2016-10-25 Donaldson Company, Inc. Filter media and elements
US10399024B2 (en) 2014-05-15 2019-09-03 Hollingsworth & Vose Company Surface modified filter media
US10195542B2 (en) 2014-05-15 2019-02-05 Hollingsworth & Vose Company Surface modified filter media
US10744435B2 (en) 2014-07-30 2020-08-18 Sabic Global Technologies B.V. Spunbond polycarbonate resin filter media
US9200568B1 (en) 2014-09-24 2015-12-01 General Electric Company Inlet air filtration system with self-cleaning filter bag
US10159924B2 (en) 2014-09-24 2018-12-25 General Electric Company Inlet air filtration system with self-cleaning hydrophobic filter bag
US10343095B2 (en) 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
US10828587B2 (en) 2015-04-17 2020-11-10 Hollingsworth & Vose Company Stable filter media including nanofibers
US10561972B2 (en) 2015-09-18 2020-02-18 Hollingsworth & Vose Company Filter media including a waved filtration layer
US10449474B2 (en) 2015-09-18 2019-10-22 Hollingsworth & Vose Company Filter media including a waved filtration layer
USD786935S1 (en) 2015-11-20 2017-05-16 Baldwin Filters, Inc. Filter element
US10035095B2 (en) 2016-03-04 2018-07-31 General Electric Company Diverted pulse jet cleaning device and system
CN109069964B (en) * 2016-04-06 2022-07-15 唐纳森公司 Fine fibers prepared by room temperature crosslinking
US10682597B2 (en) 2016-04-14 2020-06-16 Baldwin Filters, Inc. Filter system
BR112018073436B1 (en) 2016-05-13 2022-10-04 Donaldson Company, Inc GAS FILTER MEDIUM, ELEMENT COMPRISING SAID GAS FILTER MEDIUM AND METHODS FOR FILTRATING A GAS
US10625196B2 (en) 2016-05-31 2020-04-21 Hollingsworth & Vose Company Coalescing filter media
US20170362740A1 (en) * 2016-06-16 2017-12-21 Eurekite Holding BV Flexible ceramic fibers and polymer composite and method of making the same
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
CN110446538B (en) * 2017-03-22 2022-10-14 霍林斯沃思和沃斯有限公司 Filter media including a corrugated filter layer
EP3679181A4 (en) 2017-09-08 2021-05-12 The Board of Regents of The University of Texas System Mechanoluminescence polymer doped fabrics and methods
KR20200088915A (en) 2017-12-13 2020-07-23 도날드슨 컴파니, 인코포레이티드 Oleophobic polyamide microfibers, methods, filter media, and filter elements
US11583797B2 (en) * 2018-01-04 2023-02-21 Nxtnano, Llc Dual density nanofiber media
US11420143B2 (en) 2018-11-05 2022-08-23 Hollingsworth & Vose Company Filter media with irregular structure and/or reversibly stretchable layers
US11433332B2 (en) 2018-11-05 2022-09-06 Hollingsworth & Vose Company Filter media with irregular structure
WO2020172207A1 (en) 2019-02-20 2020-08-27 Board Of Regents, University Of Texas System Handheld/portable apparatus for the production of microfibers, submicron fibers and nanofibers
EP3962626A1 (en) 2019-05-01 2022-03-09 Ascend Performance Materials Operations LLC Filter media comprising polyamide nanofiber layer
EP4041432A1 (en) 2019-10-08 2022-08-17 Donaldson Company, Inc. Filter medium comprising a fine fiber layer
CN116194187A (en) 2020-04-02 2023-05-30 唐纳森公司 Filter media, composite materials, and mask systems using the same
TWI783320B (en) * 2020-12-10 2022-11-11 財團法人紡織產業綜合研究所 Breathable water resistant film
TWI847076B (en) * 2021-12-07 2024-07-01 財團法人紡織產業綜合研究所 Breathable water resistant film
CN114794535A (en) * 2022-04-28 2022-07-29 姜济华 Enhanced filter cotton and preparation method thereof

Family Cites Families (120)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US567399A (en) * 1896-09-08 Machine chuck
US2169250A (en) * 1937-05-27 1939-08-15 Du Pont Process of forming films, threads, and the like
US2384947A (en) * 1941-07-18 1945-09-18 Dow Chemical Co Vinylidene chloride compositions
US2443450A (en) * 1943-07-01 1948-06-15 Du Pont Article coated with nu-alkoxymethyl polyamide and process of making same
BE465981A (en) 1945-01-04
US2835341A (en) * 1954-10-25 1958-05-20 Little Inc A Filter construction
US3251475A (en) * 1955-04-18 1966-05-17 Fmc Corp Fibrous filter body
US2980204A (en) * 1959-08-04 1961-04-18 United Gas Improvement Co Apparatus for filtering gas
US3102793A (en) * 1960-03-14 1963-09-03 Chace Co W M Thermostat metal
NL131144C (en) * 1961-03-06
US3284178A (en) 1963-06-20 1966-11-08 Norton Co Metal backed abrasives
US3258900A (en) * 1963-08-06 1966-07-05 American Air Filter Co Unit filter assembly
US3387326A (en) * 1964-06-04 1968-06-11 Du Pont Apparatus for charging and spreading a web
US3360598A (en) 1964-12-28 1967-12-26 Du Pont Process of dry spinning an aromatic polycarbonamide fiber
US3570675A (en) * 1967-01-05 1971-03-16 Pall Corp Back pressure resistant filter element
US3591010A (en) * 1968-06-10 1971-07-06 Pall Corp Filter having a microporous layer attached thereto
US3565979A (en) * 1968-09-18 1971-02-23 Du Pont Flash spinning
US3596441A (en) * 1968-11-26 1971-08-03 Ernest W Lundahl Filtering device for vehicle exhaust
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
US4143196A (en) * 1970-06-29 1979-03-06 Bayer Aktiengesellschaft Fibre fleece of electrostatically spun fibres and methods of making same
US3745748A (en) * 1970-10-29 1973-07-17 Johns Manville Filtering process
US3772136A (en) 1971-04-20 1973-11-13 Gen Mills Inc Fibrous products from thermoplastic polyamide polymers
US3839529A (en) 1971-12-17 1974-10-01 Standard Oil Co Preparation of polyamide-imide filaments
US3825380A (en) * 1972-07-07 1974-07-23 Exxon Research Engineering Co Melt-blowing die for producing nonwoven mats
US3980605A (en) * 1972-09-13 1976-09-14 Standard Oil Company Semi-permeable membrane compositions based on blends of polyamides and polyvinyl alcohols
US3851023A (en) 1972-11-02 1974-11-26 Du Pont Process for forming a web
US4210615A (en) * 1973-05-23 1980-07-01 Basf Aktiengesellschaft Manufacture of thermoplastics fibrids
CH570493A5 (en) 1973-08-16 1975-12-15 Battelle Memorial Institute
US3888610A (en) * 1973-08-24 1975-06-10 Rothmans Of Pall Mall Formation of polymeric fibres
US4032688A (en) * 1973-08-31 1977-06-28 Pall Corporation Seamless tubular nonwoven webs and filters thereof
US4011067A (en) * 1974-01-30 1977-03-08 Minnesota Mining And Manufacturing Company Filter medium layered between supporting layers
US4020230A (en) * 1975-10-03 1977-04-26 The Dow Chemical Company Microporous polyethylene hollow fibers and process of preparing them
US4070519A (en) * 1976-04-27 1978-01-24 Huyck Corporation High temperature filter fabrics
GB1538810A (en) * 1976-08-10 1979-01-24 Sumitomo Electric Industries Hydrophilic porous fluorocarbon structures and process for their production
US4278623A (en) * 1977-01-11 1981-07-14 Union Carbide Corporation Ultra-fine fibers and method for making same
US4148595A (en) * 1977-09-28 1979-04-10 E. I. Du Pont De Nemours And Company Coating for aerodynamic shield in apparatus for making non-woven web
US4215682A (en) * 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
EP0005035B1 (en) * 1978-04-19 1981-09-23 Imperial Chemical Industries Plc A method of preparing a tubular product by electrostatic spinning
NZ190436A (en) * 1978-05-15 1981-12-15 Pall Corp Preparation of skinless hydrophilic alcohol insoluble polyamide membranes membranes casting resin solutions
US4223101A (en) * 1978-07-17 1980-09-16 Inmont Corporation Method of producing fibrous structure
DE2965672D1 (en) * 1978-10-10 1983-07-21 Ici Plc Production of electrostatically spun products
US4290987A (en) * 1979-07-02 1981-09-22 Celanese Corporation Process for preparing microporous hollow fibers
JPS56159314A (en) * 1980-05-09 1981-12-08 Ube Ind Ltd Preparation of polyimide fiber
EP0090397B1 (en) 1982-03-31 1990-01-24 Toray Industries, Inc. Ultrafine fiber entangled sheet and method of producing the same
US4468428A (en) * 1982-06-01 1984-08-28 The Procter & Gamble Company Hydrophilic microfibrous absorbent webs
US4469606A (en) * 1982-07-26 1984-09-04 Ciba-Geigy Corporation Stabilization systems for fiber finishes
DE3475085D1 (en) * 1983-12-12 1988-12-15 Toray Industries Ultra-high-tenacity polyvinyl alcohol fiber and process for producing same
US4594162A (en) * 1984-02-13 1986-06-10 American Filtrona Corporation Pleated filter and method and apparatus for fabricating same
US4759782A (en) * 1985-07-05 1988-07-26 Pall Corporation Coalescing filter for removal of liquid aerosols from gaseous streams
JPS6249922A (en) * 1985-08-28 1987-03-04 Kurabo Ind Ltd Multilayered filter element
US4647952A (en) * 1985-11-13 1987-03-03 The Mead Corporation Phenolic developer resins
US4824451A (en) * 1985-12-31 1989-04-25 Kimberly-Clark Corporation Melt-blown filter medium
US5166246A (en) 1986-01-06 1992-11-24 General Electric Company Polyetherimide-polyamide compositions
US4650506A (en) * 1986-02-25 1987-03-17 Donaldson Company, Inc. Multi-layered microfiltration medium
GB2189738B (en) * 1986-03-24 1989-11-15 Ethicon Inc Apparatus for producing fibrous structures electrostatically
US4842924A (en) * 1986-08-25 1989-06-27 Farris Richard J Novel compositions based on reinforcement with microfibrillar networks of rigid-rod polymers
US4929502A (en) * 1986-10-14 1990-05-29 American Cyanamid Company Fibrillated fibers and articles made therefrom
GB8630881D0 (en) * 1986-12-24 1987-02-04 Markwell E R Protective garment
US5026591A (en) * 1987-04-21 1991-06-25 W. L. Gore & Associates, Inc. Coated products and methods for making
US4915886A (en) * 1987-04-27 1990-04-10 Cuno, Incorporated Method of manufacturing nylon microporous hollow fiber membrane
SE461068B (en) * 1987-12-21 1990-01-08 Electrolux Ab VACUUM CLEANER
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)
JPH01293102A (en) * 1988-05-23 1989-11-27 Tokuyama Soda Co Ltd Microporous hollow yarn membrane and its production
US5283281A (en) * 1988-06-02 1994-02-01 Toray Industries, Inc. Polyvinyl alcohol multifilament yarn and process for producing the same
CA1333820C (en) * 1988-09-13 1995-01-03 Masahiko Sekiya Magneto-optical recording medium
US4917942A (en) * 1988-12-22 1990-04-17 Minnesota Mining And Manufacturing Company Nonwoven filter material
US5593768A (en) * 1989-04-28 1997-01-14 Fiberweb North America, Inc. Nonwoven fabrics and fabric laminates from multiconstituent fibers
US4992515A (en) * 1990-01-09 1991-02-12 Shakespeare Company Nylon terpolymer crosslinked with melamine formaldehyde for coating sewing threads
JP2975396B2 (en) * 1990-05-22 1999-11-10 ダイニック株式会社 Air filter material
US5104537A (en) * 1990-07-20 1992-04-14 Donaldson Company, Inc. High pressure hydraulic spin-on filter
US5082476A (en) 1990-10-19 1992-01-21 Donaldson Company, Inc. Filtration arrangement and method
US5843442A (en) 1990-10-22 1998-12-01 Corvas International, Inc. Blood coagulation protein antagonists and uses therefor
US5176952A (en) * 1991-09-30 1993-01-05 Minnesota Mining And Manufacturing Company Modulus nonwoven webs based on multi-layer blown microfibers
US5981038A (en) 1991-10-18 1999-11-09 3M Innovative Properties Company Minnesota Mining And Manufacturing Co. Laminate preventing transmissions of viral pathogens
US5203201A (en) * 1991-12-20 1993-04-20 Donaldson Company, Inc. On-line web filtration efficiency test method
US5269925A (en) 1992-05-04 1993-12-14 Exxon Research And Engineering Company Filter comprising multiple layers of non-woven filter fabric of decreasing porosity
US5753343A (en) * 1992-08-04 1998-05-19 Minnesota Mining And Manufacturing Company Corrugated nonwoven webs of polymeric microfiber
US5273565A (en) 1992-10-14 1993-12-28 Exxon Chemical Patents Inc. Meltblown fabric
AU669420B2 (en) * 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media
US5437910A (en) * 1993-07-21 1995-08-01 Steinbeis Gessner Gmbh Multi-ply filter lasminate/composite for manufacturing vacuum cleaner filter bags
ES2128590T3 (en) * 1993-08-17 1999-05-16 Minnesota Mining & Mfg METHOD FOR LOADING FILTERS WITH ELECTRETES.
US5358638A (en) 1993-08-27 1994-10-25 Isp Investments Inc. Multiple layer filter bag including abrasion-resistant material
EP0648524A1 (en) 1993-10-19 1995-04-19 Millipore Corporation Filter cartridge construction
WO1995017236A1 (en) * 1993-12-22 1995-06-29 Baxter International Inc. Filtration media and device for filtering leukocytes
US5466515A (en) 1994-04-04 1995-11-14 Blauer Manufacturing Company, Inc. Weather protective fabric combination, outerwear constructed therefrom
US5597645A (en) * 1994-08-30 1997-01-28 Kimberly-Clark Corporation Nonwoven filter media for gas
EP0709410A3 (en) * 1994-10-26 1997-03-26 Ocg Microelectronic Materials Polymers
US5453314A (en) * 1994-12-20 1995-09-26 Collier; George W. Single use disposable protective wearing apparel
AU690010B2 (en) 1995-01-12 1998-04-09 Donaldson Company Inc. Filter element
US5908598A (en) 1995-08-14 1999-06-01 Minnesota Mining And Manufacturing Company Fibrous webs having enhanced electret properties
US5672399A (en) * 1995-11-17 1997-09-30 Donaldson Company, Inc. Filter material construction and method
US6171684B1 (en) * 1995-11-17 2001-01-09 Donaldson Company, Inc. Filter material construction and method
US5820646A (en) 1996-04-26 1998-10-13 Donaldson Company, Inc. Inline filter apparatus
US5672188A (en) * 1996-05-28 1997-09-30 Aaf International High capacity filter media
US5800586A (en) 1996-11-08 1998-09-01 Johns Manville International, Inc. Composite filter media
IL119809A (en) * 1996-12-11 2001-06-14 Nicast Ltd Device for manufacture of composite filtering material and method of its manufacture
US6015764A (en) * 1996-12-27 2000-01-18 Kimberly-Clark Worldwide, Inc. Microporous elastomeric film/nonwoven breathable laminate and method for making the same
US6037281A (en) * 1996-12-27 2000-03-14 Kimberly-Clark Worldwide, Inc. Cloth-like, liquid-impervious, breathable composite barrier fabric
US6048661A (en) * 1997-03-05 2000-04-11 Shin-Etsu Chemical Co., Ltd. Polymeric compounds, chemically amplified positive type resist materials and process for pattern formation
US5853442A (en) 1997-04-18 1998-12-29 Donaldson Company, Inc. Bolt connector assembly having retainer ring construction and reduced diameter shank portion
US6354443B1 (en) * 1997-05-01 2002-03-12 Millipore Corporation Surface modified porous membrane and process
US6068799A (en) * 1997-10-01 2000-05-30 3M Innovative Properties Company Method of making electret articles and filters with increased oily mist resistance
US5895510A (en) * 1997-10-22 1999-04-20 Dana Corporation Air filter assembly
US5980755A (en) 1997-11-07 1999-11-09 Rg, Delaware, Inc. Methods and apparatus for monitoring a filter bed by differential pressure
US6192520B1 (en) * 1998-01-30 2001-02-27 Safety Components Fabric Technologies, Inc. Water resistant protective garment for fire fighters
US6265333B1 (en) * 1998-06-02 2001-07-24 Board Of Regents, University Of Nebraska-Lincoln Delamination resistant composites prepared by small diameter fiber reinforcement at ply interfaces
DE19832611C2 (en) * 1998-07-21 2002-03-21 Freudenberg Carl Kg Vacuum Cleaner Bags
US6090173A (en) * 1998-08-07 2000-07-18 Donaldson Company, Inc. Air filter assembly for filtering air with particulate matter
WO2000053428A1 (en) * 1999-03-12 2000-09-14 Nashua Corporation Heat-sensitive coating containing acrylate copolymer, recording material and methods of manufacture
US6110249A (en) * 1999-03-26 2000-08-29 Bha Technologies, Inc. Filter element with membrane and bicomponent substrate
DE19919809C2 (en) * 1999-04-30 2003-02-06 Fibermark Gessner Gmbh & Co Dust filter bag containing nanofiber fleece
ATE417660T1 (en) * 1999-10-29 2009-01-15 Hollingsworth & Vose Co FILTER MATERIAL
US6716274B2 (en) * 2000-09-05 2004-04-06 Donaldson Company, Inc. Air filter assembly for filtering an air stream to remove particulate matter entrained in the stream
US6673136B2 (en) * 2000-09-05 2004-01-06 Donaldson Company, Inc. Air filtration arrangements having fluted media constructions and methods
US6743273B2 (en) * 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US20020084178A1 (en) * 2000-12-19 2002-07-04 Nicast Corporation Ltd. Method and apparatus for manufacturing polymer fiber shells via electrospinning
US6855743B1 (en) * 2001-10-29 2005-02-15 Nanosystems Research, Inc. Reinforced, laminated, impregnated, and composite-like materials as crosslinked polyvinyl alcohol hydrogel structures
US20030088266A1 (en) * 2001-11-02 2003-05-08 Bowlin Gary L. Method of fusing electroprocessed matrices to a substrate
US6660172B2 (en) * 2002-01-31 2003-12-09 Koslow Technologies Corporation Precoat filtration media and methods of making and using
US20060231487A1 (en) * 2005-04-13 2006-10-19 Bartley Stuart L Coated filter media

Similar Documents

Publication Publication Date Title
RU2003107850A (en) POLYMER, POLYMERIC MICROFIBER, POLYMERIC NANOFIBER AND AREAS OF APPLICATION INCLUDING FILTER DESIGNS
CN1080338C (en) Superfine microfiber nonwoven web
CA2419770A1 (en) Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
KR100819355B1 (en) Methods for filtering air in a gas turbine intake system and a filter structure used therefor
US9587328B2 (en) Fine fibers made from polymer crosslinked with resinous aldehyde composition
CN1763274B (en) Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
JP2006511315A (en) Wiping material having a nanofiber layer
CN1068074C (en) Fibrillatable fiber of sea-islands structure
CN109338497B (en) Preparation method of hydrophilic degradable polybutyrolactam superfine fiber
US12104287B2 (en) Fine fibers made from room temperature crosslinking
KR20120110468A (en) Method for manufacturing non-woven fabric composed of polyamide nanofiber with excellent water repellency and oil repellency
JP7424975B2 (en) Oleophobic polyamide microfibers, methods, filter media and filter elements
WO2005049707A1 (en) A method for manufacturing a fibrous structure, a method for manufacturing a fiber, and a fibrous structure
JP3716969B2 (en) Charged non-woven fabric
Banciu et al. Filtering membranes based on electrospun expanded polystyrene/β-cyclodextrin fibers
Feng An investigation on phase behavior and orientation factor of electrospun nanofibers