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Filtration media comprising non-charged meltblown fibers and electrically charged staple fibers 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-039/02
  • D04H-001/04
  • D04H-001/58
  • B32B-003/28
출원번호 US-0824994 (1992-01-24)
발명자 / 주소
  • Sundet Douglas C. (St. Paul MN) Fox Albert H. (St. Paul MN)
출원인 / 주소
  • Minnesota Mining and Manufacturing (Saint Paul MN 02)
인용정보 피인용 횟수 : 60  인용 특허 : 0

초록 ▼

Filtration material comprising a web comprising meltblown fibers and staple, electrically charged fibers randomly dispersed among the meltblown fibers. The filtration material can be formed in planar configurations and in configurations other than planar. Non-planar configurations can extend the use

대표청구항 ▼

A web comprising: (a) a mass of meltblown, non-charged fibers made of polymeric material; and (b) staple, electrically charged fibers randomly dispersed among the meltblown fibers, wherein the pressure drop through the web is less than about 74.7 pascals (Pa) at 0.91 m/sec air velocity and the value

이 특허를 인용한 특허 (60)

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