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Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H05B-007/16
  • B27N-003/04
출원번호 US-0415566 (1999-10-08)
발명자 / 주소
  • Seyed A. Angadjivand
  • Michael G. Schwartz
  • Philip D. Eitzman
  • Marvin E. Jones
출원인 / 주소
  • 3M Innovative Properties Company
대리인 / 주소
    Karl G. Hanson
인용정보 피인용 횟수 : 41  인용 특허 : 39

초록 ▼

A method and apparatus for charging fibers that contain a nonconductive polymer. A polar liquid 32, 34 is sprayed onto free-fibers 24, and the free-fibers 24 are then collected to form an entangled nonwoven fibrous web 25 that may contain a portion of the polar liquid. The nonwoven web 25 is then dr

대표청구항 ▼

1. A method of making a nonwoven fibrous electret web, which method comprises the steps of:(a) forming one or more free-fibers from a nonconductive polymeric fiber-forming material; (b) spraying an elective amount of polar liquid onto the free-fibers; (c) collecting the free-fibers to form a nonwove

이 특허에 인용된 특허 (39)

  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. Deeds William E. (Knoxville TN), Charging method for meltblown webs.
    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. Appel David W. (Wittenberg WI) Morman Michael T. (Appleton WI), Method for forming nonwoven webs.
    상세보기
  23. 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
  24. Klaase Petrus T. A. (Voorburg NLX) van Turnhout Jan (Pijnacker NLX), Method for manufacturing an electret filter medium.
    상세보기
  25. 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
  26. Weber Robert E. (Appleton WI) Peterson Richard M. (Appleton WI), Method for rapid quenching of melt blown fibers.
    상세보기
  27. van Turnhout Jan (Delft NLX), Method for the manufacture of an electret fibrous filter.
    상세보기
  28. van Turnhout Jan (Pnacker NLX), Method for the manufacture of an electret fibrous filter.
    상세보기
  29. Angadjivand Seyed A. (Darlington MN GB2) Jones Marvin E. (Stillwater MN) Meyer Daniel E. (Stillwater MN), Method of charging electret filter media.
    상세보기
  30. 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
  31. Nakao Etsuro (Motiyama JPX), Method of manufacturing an electret filter.
    상세보기
  32. Jones Marvin E. (Grant Township MN) Rousseau Alan D. (Stillwater MN), Oily mist resistant electret filter media.
    상세보기
  33. Jones Marvin E. (Grant Township ; Washington County MN) Rousseau Alan D. (Stillwater MN), Oily mist resistant electret filter media and method for filtering.
    상세보기
  34. 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
  35. 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
  36. Peckinpaugh Frank L. (Colonial Heights VA) Biron Raymond J. (Colonial Heights VA), Quench process for synthetic fibers using fog and flowing air.
    상세보기
  37. Peckinpaugh Frank L. (Colonial Heights VA) Biron Raymond J. (Colonial Heights VA), Quench system for synthetic fibers using fog and flowing air.
    상세보기
  38. 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
  39. Hauser ; Edward R., Web of blended microfibers and crimped bulking fibers.
    상세보기

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  2. Kirk,Seth M.; Spartz,Gerald R.; Jones,Marvin E.; Pachuta,Steven J.; Huberty,John S., Electret article having heteroatoms and low fluorosaturation ratio.
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  3. Spartz,Gerald R.; Kirk,Seth M.; Jones,Marvin E.; Cabibil,Hyacinth L.; Rousseau,Alan D.; Pachuta,Steven J., Electret article having high fluorosaturation ratio.
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  4. Li, Fuming B.; Bai, Feng; Sebastian, John M.; Jones, Marvin E., Electret webs with charge-enhancing additives.
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  5. Schultz, Nathan E.; Li, Fuming B.; Sebastian, John M., Electret webs with charge-enhancing additives.
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  6. Schultz, Nathan E.; Li, Fuming B.; Sebastian, John M., Electret webs with charge-enhancing additives.
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  7. Schultz, Nathan E.; Li, Fuming B.; Sebastian, John M., Electret webs with charge-enhancing additives.
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  8. Sebastian, John M.; Li, Fuming B.; Jones, Marvin E.; Dressel, Luke T.; Japuntich, Daniel A., Electret webs with charge-enhancing additives.
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  9. Takeuchi, Masami; Takashima, Yuichirou, Electrically charged filter and mask.
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  10. Andrady, Anthony L.; Ensor, David S., Electrospinning in a controlled gaseous environment.
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  11. Andrady, Anthony L.; Ensor, David S.; Newsome, Randall J., Electrospinning in a controlled gaseous environment.
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  12. Andrady,Anthony L.; Ensor,David S., Electrospinning in a controlled gaseous environment.
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  13. Andrady,Anthony L.; Ensor,David S.; Newsome,Randall J., Electrospinning of fibers using a rotatable spray head.
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  14. Andrady, Anthony L.; Ensor, David S., Electrospray/electrospinning apparatus and method.
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  15. Andrady, Anthony L.; Ensor, David S., Electrospray/electrospinning apparatus and method.
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  16. 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.
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  17. Duffy, Dean R.; Holler, Robert E., Filtering face-piece respirator dispenser.
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  18. Duffy, Dean R., Filtering face-piece respirator having strap-activated folded flange.
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  19. Fox, Andrew R.; Jones, Marvin E., Highly charged, charge stable nanofiber web.
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  20. Duffy, Dean R., Horizontal flat-fold filtering face-piece respirator having indicia of symmetry.
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  21. Jenkins, Anthony; McGann, William J.; Napoli, Joseph D.; Perry, Kevin J., Materials and apparatus for the detection of contraband.
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  22. Jenkins, Anthony; McGann, William J.; Napoli, Joseph; Perry, Kevin, Materials and apparatus for the detection of contraband.
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  23. Leonard, William K., Method and apparatus for electric.
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  24. Leonard, William K., Method and apparatus for electric treatment of substrates.
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  25. Leonard, William K., Method and apparatus for electric treatment of substrates.
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  26. Leonard, William K., Method and apparatus for electric treatment of substrates.
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  27. 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.
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  28. 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.
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  29. 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.
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  30. Jones, Marvin E.; Lyons, Christopher S.; Redmond, David B.; Solomon, Jeffrey L.; Angadjivand, Seyed Abolhassan, Method of making fluorinated electrets.
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  31. Jones, Marvin E.; Lyons, Christopher S.; Redmond, David B.; Solomon, Jeffrey L.; Angadjivand, Seyed Abolhassan, Method of using fluorinated electrets.
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  32. Andrady, Anthony L.; Ensor, David S.; Walker, Teri A.; Prabhu, Purva, Nanofiber mats and production methods thereof.
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  34. Berkemann, Ralph; Lauffenburger, Patrick, Nonwoven web and fibers with electret properties, manufacturing processes thereof and their use.
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