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Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • D06B-003/00
  • B01D-039/16
출원번호 US-0415291 (1999-10-08)
발명자 / 주소
  • Philip D. Eitzman
  • Alan D. Rousseau
출원인 / 주소
  • 3M Innovative Properties Company
대리인 / 주소
    Karl G. Hanson
인용정보 피인용 횟수 : 41  인용 특허 : 44

초록 ▼

A method for imparting an electrostatic charge to a nonwoven fibrous web 20. The fibrous web 20 is wetted with a wetting liquid 24, followed by being saturated with an aqueous polar liquid 30 and drying 31. The resulting dried product is an electret article 43 that could be used as an air filter in,

대표청구항

1. A method of making a fibrous electret web, which method comprises:wetting a fibrous web, which web contains nonconductive polymeric fibers, with a wetting liquid; saturating the wetted web in an aqueous polar liquid; and then substantially drying the web.

이 특허에 인용된 특허 (44)

  1. Allen Martin A. (Dawsonville GA) Fetcko John T. (Dawsonville GA), Airless quench method and apparatus for meltblowing.
    상세보기
  2. Brown Richard C. (Dore GB2), Blended-fibre filter material.
    상세보기
  3. Lifshutz Norman (Nashua NH) Gahan Richard E. (Wrentham MA) Stevens Graham C. (Quincy MA), Charge stabilized electret filter media.
    상세보기
  4. Shizuno Akihito (Tochigi-ken JPX) Yanagida Hiroyuki (Tochigi-ken JPX), Cleaning sheet comprising a network layer and at least one nonwoven layer of specific basis weight needled thereto.
    상세보기
  5. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Composition useful for making electret fibers.
    상세보기
  6. Ando Katsutoshi (Otsu JPX) Ogawa Yo (Kusatsu JPX), Electret fiber sheet and method of producing same.
    상세보기
  7. Reed John F. (Arden Hills MN) Jones Marvin E. (Stillwater MN), Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene).
    상세보기
  8. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Electret filter media containing filtration enhancing additives.
    상세보기
  9. Mishra Anupama (Guelph CAX), Electret made of branched alpha-olefin polymer.
    상세보기
  10. Nishiura Eiichi (Otsu JPX) Ando Katsutoshi (Otsu JPX), Electret materials and the method for preparing the electret materials.
    상세보기
  11. Ohmori Susumu (Okayama JPX) Yagi Akira (Otsu JPX) Takase Satoshi (Otsu JPX), Electretized material for a dust filter.
    상세보기
  12. Ohmori Susumu (Okayama JPX) Yagi Akira (Otsu JPX) Takase Satoshi (Otsu JPX), Electretized material for a dust filter.
    상세보기
  13. Rader Mark S. (Knoxville TN) Alexeff Igor (Oak Ridge TN) Tsai Peter P. (Knoxville TN) Wadsworth Larry C. (Knoxville TN), Electrostatic charging apparatus and method.
    상세보기
  14. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Fibrous webs having enhanced electret properties.
    상세보기
  15. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Fibrous webs useful for making electret filter media.
    상세보기
  16. Miyake, Masaaki; Fukumori, Kunihiko, Filter medium and process for preparing same.
    상세보기
  17. Jameson Lee K. (Roswell GA) Cohen Bernard (Berkley Lake GA), Hydrosonic process for forming electret filter media.
    상세보기
  18. Coufal Hans J. (San Jose CA) Grygier Robert K. (San Jose CA), Jet deposition of electrical charge on a dielectric surface.
    상세보기
  19. Kubik Donald A. (Houlton WI) Davis Charles I. (Cottage Grove MN), Melt-blown fibrous electrets.
    상세보기
  20. Chou Richard Tien-Hua ; Ireland Patrick Stephen ; Molnar Charles John ; Lim Hyun Sung ; Shin Hyunkook, Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters.
    상세보기
  21. Tsai Peter P. (Knoxville TN) Wadsworth Larry C. (Knoxville TN), Method and apparatus for the electrostatic charging of a web or film.
    상세보기
  22. Besenhard Jurgen-Otto,DEX ; Claussen Olaf,DEX ; Gausmann Hans-Peter,DEX ; Meyer Heinrich,DEX ; Mahlkow Hartmut,DEX, Method for coating surfaces with finely particulate materials.
    상세보기
  23. Appel David W. (Wittenberg WI) Morman Michael T. (Appleton WI), Method for forming nonwoven webs.
    상세보기
  24. van Turnhout Jan (Pijnacker NLX) Rieke Johannes C. (Delft NLX), Method for manufacturing a filter of electrically charged electret fiber material and electret filters obtained accordin.
    상세보기
  25. Klaase Petrus T. A. (Voorburg NLX) van Turnhout Jan (Pijnacker NLX), Method for manufacturing an electret filter medium.
    상세보기
  26. Krueger Dennis L. (St. Paul MN) Insley Thomas I. (St. Paul MN) Meyer Daniel E. (St. Paul MN) Rolando Richard J. (St. Paul MN), Method for preparing radiation resistant polypropylene articles.
    상세보기
  27. Weber Robert E. (Appleton WI) Peterson Richard M. (Appleton WI), Method for rapid quenching of melt blown fibers.
    상세보기
  28. van Turnhout Jan (Delft NLX), Method for the manufacture of an electret fibrous filter.
    상세보기
  29. van Turnhout Jan (Pnacker NLX), Method for the manufacture of an electret fibrous filter.
    상세보기
  30. Herman Raymond L. (Richland WA), Method of and apparatus for testing the integrity of filters.
    상세보기
  31. Angadjivand Seyed A. (Darlington MN GB2) Jones Marvin E. (Stillwater MN) Meyer Daniel E. (Stillwater MN), Method of charging electret filter media.
    상세보기
  32. Reeves William G. (Woodstock GA) Powers Michael D. (Dunwoody GA) Mathis Michael P. (Marietta GA) Duello Leonard E. (Woodstock GA), Method of making conductive, water and/or alcohol repellent nonwoven fabric and resulting product.
    상세보기
  33. Pall David B. (Roslyn Estates NY) Harwood Colin F. (Glen Cove NY) Bradley Arthur (Floral Park NY) Brennan Timothy R. (Old Westbury NY), Method of making cylindrical fibrous filter structures.
    상세보기
  34. Nakao Etsuro (Motiyama JPX), Method of manufacturing an electret filter.
    상세보기
  35. Berg, Harvey J., Molded fibrous filtration products.
    상세보기
  36. Cohen Bernard ; Gipson Lamar Heath ; Brostin Joel, Nonwoven webs with one or more surface treatments.
    상세보기
  37. Jones Marvin E. (Grant Township MN) Rousseau Alan D. (Stillwater MN), Oily mist resistant electret filter media.
    상세보기
  38. Jones Marvin E. (Grant Township ; Washington County MN) Rousseau Alan D. (Stillwater MN), Oily mist resistant electret filter media and method for filtering.
    상세보기
  39. Rolando Richard J. (Oakdale MN) Krueger Dennis L. (Hudson WI) Meyer Daniel E. (Stillwater MN) Insley Thomas I. (Lake Elmo MN), Polypropylene articles and method for preparing same.
    상세보기
  40. Rolando Richard J. (Oakdale MN) Krueger Dennis L. (Hudson WI) Meyer Daniel E. (Stillwater MN) Insley Thomas L. (Lake Elmo MN), Preparing polypropylene articles.
    상세보기
  41. Peckinpaugh Frank L. (Colonial Heights VA) Biron Raymond J. (Colonial Heights VA), Quench process for synthetic fibers using fog and flowing air.
    상세보기
  42. Peckinpaugh Frank L. (Colonial Heights VA) Biron Raymond J. (Colonial Heights VA), Quench system for synthetic fibers using fog and flowing air.
    상세보기
  43. Krueger Dennis L. (Hudson WI) Insley Thomas I. (Lake Elmo MN) Meyer Daniel E. (Stillwater MN) Rolando Richard J. (Oakdale MN), Radiation resistant polypropylene articles and method for preparing same.
    상세보기
  44. Hauser ; Edward R., Web of blended microfibers and crimped bulking fibers.
    상세보기

이 특허를 인용한 특허 (41)

  1. Ball, David Matthew; Crabtree, LaMonte A., Box filter with orientation device.
    상세보기
  2. Crabtree, LaMonte A.; Chesson, Jr., Richard Keith; Geil, Jr., Ronald Jay; Sinclair, Jeffrey A., Collapsible and/or assembled filter housing and filter used therewith.
    상세보기
  3. Crabtree, LaMonte A.; Chesson, Jr., Richard Keith; Geil, Jr., Ronald Jay; Sinclair, Jeffrey A., Collapsible and/or assembled filter housing and filter used therewith.
    상세보기
  4. Greer,Paul A.; Slack,Joseph D.; Legare,Pierre, Conformal filter cartridges and methods.
    상세보기
  5. Kirk,Seth M.; Spartz,Gerald R.; Jones,Marvin E.; Pachuta,Steven J.; Huberty,John S., Electret article having heteroatoms and low fluorosaturation ratio.
    상세보기
  6. Spartz,Gerald R.; Kirk,Seth M.; Jones,Marvin E.; Cabibil,Hyacinth L.; Rousseau,Alan D.; Pachuta,Steven J., Electret article having high fluorosaturation ratio.
    상세보기
  7. Chin, Hui; Gande, Matthew E.; Leggio, Andrew J., Electret materials.
    상세보기
  8. Li, Fuming B.; Bai, Feng; Sebastian, John M.; Jones, Marvin E., Electret webs with charge-enhancing additives.
    상세보기
  9. Li, Fuming B.; Sebastian, John M.; Jones, Marvin E.; Japuntich, Daniel A., Electret webs with charge-enhancing additives.
    상세보기
  10. Schultz, Nathan E.; Li, Fuming B.; Sebastian, John M., Electret webs with charge-enhancing additives.
    상세보기
  11. Schultz, Nathan E.; Li, Fuming B.; Sebastian, John M., Electret webs with charge-enhancing additives.
    상세보기
  12. Schultz, Nathan E.; Li, Fuming B.; Sebastian, John M., Electret webs with charge-enhancing additives.
    상세보기
  13. Sebastian, John M.; Li, Fuming B.; Jones, Marvin E.; Dressel, Luke T.; Japuntich, Daniel A., Electret webs with charge-enhancing additives.
    상세보기
  14. Takeuchi, Masami; Takashima, Yuichirou, Electrically charged filter and mask.
    상세보기
  15. Viner, Andrew S.; Conlan, Audra A.; Cormack, Brian; Watson, Malcolm R.; Henderson, Christopher P.; Curran, Desmond T.; Williams, Elfed I., Filter element that has a thermo-formed housing around filter material.
    상세보기
  16. Crabtree, LaMonte A.; Chesson, Jr., Richard Keith; Geil, Jr., Ronald Jay; Sinclair, Jeffrey A., Filter frame housing and filter for animal confinement building.
    상세보기
  17. Crabtree, LaMonte A., Filter system using plastic frames along structural wall of animal confinement building.
    상세보기
  18. Duffy, Dean R.; Holler, Robert E., Filtering face-piece respirator dispenser.
    상세보기
  19. Duffy, Dean R., Filtering face-piece respirator having strap-activated folded flange.
    상세보기
  20. Fox, Andrew R.; Jones, Marvin E., Highly charged, charge stable nanofiber web.
    상세보기
  21. Duffy, Dean R., Horizontal flat-fold filtering face-piece respirator having indicia of symmetry.
    상세보기
  22. Leonard, William K., Method and apparatus for electric.
    상세보기
  23. Leonard, William K., Method and apparatus for electric treatment of substrates.
    상세보기
  24. Leonard, William K., Method and apparatus for electric treatment of substrates.
    상세보기
  25. Leonard, William K., Method and apparatus for electric treatment of substrates.
    상세보기
  26. Viner,Andrew S.; Conlan,Audra A.; Cormack,Brian; Watson,Malcolm R.; Henderson,Christopher P.; Curran,Desmond T.; Williams,Elfed I., Method of making a filter cartridge using a thermoforming step.
    상세보기
  27. Jones, Marvin E.; Lyons, Christopher S.; Redmond, David B.; Solomon, Jeffrey L.; Angadjivand, Seyed Abolhassan, Method of making a respirator that has a fluorinated electret.
    상세보기
  28. Sebastian, John M.; Jones, Marvin E.; Li, Fuming B.; Chou, Shih-Hung; Schultz, Nathan E.; Keough, Justin L.; Shah, Rahul R.; Japuntich, Daniel A., Method of making electret articles based on zeta potential.
    상세보기
  29. Jones, Marvin E.; Lyons, Christopher S.; Redmond, David B.; Solomon, Jeffrey L.; Angadjivand, Seyed Abolhassan, Method of making fluorinated electrets.
    상세보기
  30. Jones, Marvin E.; Lyons, Christopher S.; Redmond, David B.; Solomon, Jeffrey L.; Angadjivand, Seyed Abolhassan, Method of using fluorinated electrets.
    상세보기
  31. Ball, David Matthew; Crabtree, LaMonte A., Non V-bank filter for animal confinement facility.
    상세보기
  32. Fu, Xiaoshuan; Chen, Rui; Xu, Qiang; Le normand, Jean; Both, Hendrik; Wu, Tien T.; Fox, Andrew R., Non-woven electret fibrous webs and methods of making same.
    상세보기
  33. Eitzman, Philip D.; Rousseau, Alan D., Process of making a fibrous electret web.
    상세보기
  34. Li, Fuming B.; Sebastian, John M.; Jones, Marvin E.; Brandner, John M.; Olson, David A.; Keough, Justin L., Processing aids for olefinic webs, including electret webs.
    상세보기
  35. Castiglione, David M.; Betz, James R.; Reier, Matthew D., Respiratory assembly including latching mechanism.
    상세보기
  36. Mittelstadt,William A.; Pilgrim,John M., Respiratory protection device that has rapid threaded clean air source attachment.
    상세보기
  37. Blomberg, David M.; Cowell, Michael J.; Mittelstadt, William A.; Raines, III, Carl W.; Abel, Nathan A., Sleeve-fit respirator cartridge.
    상세보기
  38. Crabtree, LaMonte A.; Chesson, Jr., Richard K.; Geil, Jr., Ronald J., V-bank air filtration system such as for animal confinement.
    상세보기
  39. Crabtree, LaMonte A.; Geil, Jr., Ronald Jay; Chesson, Jr., Richard Keith; Sinclair, Jeffrey A., V-bank air filtration system such as for animal confinement.
    상세보기
  40. Croll, Lisa M.; Dahn, Jeffrey R.; Smith, Jock W. H.; Romero, Jennifer V., Zinc oxide containing filter media and methods of forming the same.
    상세보기
  41. Croll, Lisa M.; Dahn, Jeffrey R.; Smith, Jock W. H.; Romero, Jennifer V., Zinc oxide containing filter media and methods of forming the same.
    상세보기

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