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Predicting electret performance by measuring level of extractable hydrocarbons 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • A62B-018/02
출원번호 US-0487377 (2000-01-18)
발명자 / 주소
  • Rousseau Alan D.
  • Miller Joel W.
출원인 / 주소
  • 3M Innovative Properties Company
대리인 / 주소
    Hanson
인용정보 피인용 횟수 : 5  인용 특허 : 29

초록

A method of predicting the performance of electret filter web involves measuring the level of extractable hydrocarbon material in the web. Electret filters that have low extractable hydrocarbon levels exhibit improved filtration performance.

대표청구항

[ What is claimed is:] [1.]1. A method of predicting the performance of an electret filter web comprising the step of measuring the level of extractable hydrocarbons in the web.

이 특허에 인용된 특허 (29)

  1. Brown Richard C. (Dore GB2), Blended-fibre filter material.
  2. Lifshutz Norman (Nashua NH) Gahan Richard E. (Wrentham MA) Stevens Graham C. (Quincy MA), Charge stabilized electret filter media.
  3. 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.
  4. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Composition useful for making electret fibers.
  5. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Compounds useful as resin additives.
  6. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Electret filter media containing filtration enhancing additives.
  7. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Fibrous webs having enhanced electret properties.
  8. Rousseau Alan D. ; Jones Marvin E. ; Angadjivand Seyed A.,GBX, Fibrous webs useful for making electret filter media.
  9. Brostrom Gerald M. (St. Paul MN) Japuntich Daniel A. (St. Paul MN) Yard Sabrina M. (St. Paul MN), Filter element.
  10. Brostrom Gerald M. (St. Paul MN) Japuntich Daniel A. (St. Paul MN) Yard Sabrina M. (St. Paul MN), Filter element.
  11. Berrigan Michael R. (Oakdale MN) Olson David A. (St. Paul MN), Filter media having an undulated surface.
  12. Crater Davis H. (P.O. Box 33427 St. Paul MN 55133-3427) Howells Richard D. (P.O. Box 33427 St. Paul MN 55133-3427) Stern Richard M. (P.O. Box 33427 St. Paul MN 55133-3427) Temperante John A. (P.O. Bo, Fluorochemical oxazolidinones.
  13. Crater Davis H. (White Bear Lake MN) Howells Richard D. (St. Paul MN) Stern Richard M. (Woodbury MN) Temperante John A. (St. Paul MN), Fluorochemical oxazolidinones.
  14. Japuntich Daniel A. (St. Paul MN), High efficiency respirator.
  15. Kubik Donald A. (Houlton WI) Davis Charles I. (Cottage Grove MN), Melt-blown fibrous electrets.
  16. 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.
  17. 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.
  18. Klaase Petrus T. A. (Voorburg NLX) van Turnhout Jan (Pijnacker NLX), Method for manufacturing an electret filter medium.
  19. Stern Sidney C. (Framingham MA), Method for producing electret fibers for enhancement of submicron aerosol filtration.
  20. van Turnhout Jan (Pnacker NLX), Method for the manufacture of an electret fibrous filter.
  21. Angadjivand Seyed A. (Darlington MN GB2) Jones Marvin E. (Stillwater MN) Meyer Daniel E. (Stillwater MN), Method of charging electret filter media.
  22. Nakao Etsuro (Motiyama JPX), Method of manufacturing an electret filter.
  23. Berg, Harvey J., Molded fibrous filtration products.
  24. Jones Marvin E. (Grant Township MN) Rousseau Alan D. (Stillwater MN), Oily mist resistant electret filter media.
  25. Jones Marvin E. (Grant Township ; Washington County MN) Rousseau Alan D. (Stillwater MN), Oily mist resistant electret filter media and method for filtering.
  26. Jungmann ; deceased Martin (late of Rangeley ME by Gertrude Jungmann ; heir), Pelvic device.
  27. 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.
  28. Dyrud James F. (New Richmond WI) Berg Harvey J. (St. Paul MN) Murray Alice C. (Maplewood MN), Resilient shape-retaining fibrous filtration face mask.
  29. Japuntich Daniel A. (St. Paul MN) Grannis Vaughn B. (Inver Grove Heights MN) Seppala Harold J. (St. Paul MN) Ferguson Anthony B. (Woodbury MN), Unidirectional fluid valve.

이 특허를 인용한 특허 (5)

  1. 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.
  2. Rousseau, Alan D.; Miller, Joel W., Method of making electret fibers.
  3. Jones, Marvin E.; Lyons, Christopher S.; Redmond, David B.; Solomon, Jeffrey L.; Angadjivand, Seyed Abolhassan, Method of making fluorinated electrets.
  4. Jones, Marvin E.; Lyons, Christopher S.; Redmond, David B.; Solomon, Jeffrey L.; Angadjivand, Seyed Abolhassan, Method of using fluorinated electrets.
  5. Berkemann, Ralph; Lauffenburger, Patrick, Nonwoven web and fibers with electret properties, manufacturing processes thereof and their use.
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