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Modification of polyvinylidene fluoride membrane and method of filtering 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-071/34
출원번호 US-0271646 (1994-07-07)
발명자 / 주소
  • Raghavan Srini (Tuscon AZ) Jan Der\e (Tuscon AZ) Chilkunda Raghunath (Tuscon AZ)
출원인 / 주소
  • University of Arizona (Tucson AZ 02)
인용정보 피인용 횟수 : 97  인용 특허 : 0

초록 ▼

There is provided a filter medium comprising a microporous polyvinylidene fluoride membrane and a polymer containing a positively charged organic phosphonium compound grafted to the membrane in a concentration sufficient to provide a surface of said membrane with a positive charge such that there is

대표청구항 ▼

A method for ultrapurifying a liquid having macromolecular contaminants therein comprising passing the liquid through a microporous polyvinylidene fluoride membrane having a polymer of vinyltriphenyl phosphonium bromide and a member of the group consisting of an acrylate and a methacrylate grafted t

이 특허를 인용한 특허 (97)

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