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Dispersing casting of integral skinned highly asymmetric polymer membranes

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29D-027/00
출원번호 US-0932372 (1986-11-19)
발명자 / 주소
  • Wrasidlo Wolfgang J. (La Jolla CA)
출원인 / 주소
  • Brunswick Corporation (DeLand FL 02)
인용정보 피인용 횟수 : 117  인용 특허 : 2

초록

There is disclosed, in one aspect, an improved highly asymmetric membrane comprising a skin and a porous asymmetric support. The skin contains pores which have an mean pore diameter of from about 0.005 to about 3.0 microns and the asymmetric support comprises a reticulated structure which contains p

대표청구항

A method of making a highly asymmetric integrally skinned polymer membrane with excellent retention properties, a high flow rate, and improved resistance to fouling, said method comprising: A. mixing a polymer and a solvent to produce a polymer solution, B. adding a non-solvent in an amount sufficie

이 특허에 인용된 특허 (2)

  1. Pall David B. (Roslyn Estates NY), Process for preparing hydrophilic polyamide membrane filter media and product.
  2. Martin Carlyle J. (Pierce Creek Road ; R.D. No. 1 Binghamton NY 13903), Seal assemblies for water well casings.

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