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Process for preparing isotropic microporous polysulfone membranes 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29C-067/20
출원번호 US-0248880 (1988-09-23)
발명자 / 주소
  • Ly Ann L. (Bedford MA) Chu Chaokang (Lexington MA) Nguyen Thanh D. (Billerica MA)
출원인 / 주소
  • W. R. Grace & Co.-Conn. (New York NY 02)
인용정보 피인용 횟수 : 21  인용 특허 : 11

초록

Isotropic microporous polysulfone membranes can be prepared by using a particular combination of casting solution and precipitation solution formulations, and casting conditions. Both hollow fiber and flat membranes can be prepared in this manner. The membranes are skinless and are characterized by

대표청구항

The process of claim 15 which further comprises water washing said flat sheet membrane following step (d).

이 특허에 인용된 특허 (11)

  1. Nohmi Takashi (Fuji JPX), Aromatic polysulfone type resin hollow fiber membrane and process for producing the same.
  2. Linder Charles (Rehovot ILX) Aviv Gershon (Tel Aviv ILX) Perry Mordechai (Petach Tikvah ILX) Kotraro Reuven (Rehovot ILX), Chemically modified semipermeable membranes and their use in reverse osmosis and ultrafiltration.
  3. Linder Charles (Rehovot ILX) Aviv Gershon (Tel Aviv ILX) Perry Mordechai (Petach Tikvah ILX) Kotraro Reuven (Rehovot ILX), Chemically modified semipermeable polysulfone membranes and their use in reverse osmosis and ultrafiltration.
  4. Baker Richard W. (Palo Alto CA) Barss Robert P. (Bend OR), Composite membrane for reverse osmosis.
  5. Eguchi Tamiyuki (Kobe JPX), Hollow fiber filter medium and process for preparing the same.
  6. Walch Axel (Frankfurt am Main DEX) Wildhardt Juergen (Huenstetten DEX) Beissel Dieter (Weisbaden DEX), Macroporous asymmetrical hydrophilic membrane made of a synthetic polymer.
  7. Repetti Ronald V. (Guilford CT) Yaeger Scott P. (Cheshire CT) Chu Chaokang (Lexington MA), Method of manufacturing a hollow porous fiber.
  8. Joh Yasushi (Yokohama JPX) Yamazaki Masahiro (Yokohama JPX) Kaneko Noriaki (Kamakura JPX) Oikawa Shigehiko (Sagamihara JPX) Makuta Yoshihiro (Kawasaki JPX) Hayashi Chizuko (Yokohama JPX), Method of manufacturing hollow fiber.
  9. Ishii Kiyoshi (Saitama JA) Sato Kozi (Saitama JA), Poly(arylether-sulfone) semipermeable membrane comprising substituted halomethyl and/or quaternary nitrogen groups.
  10. Marze Xavier (Lyons FRX), Polymeric compositions for membranes.
  11. Browne Colin L. (Clover SC), Process for forming a skinless hollow fiber of a cellulose ester.

이 특허를 인용한 특허 (21)

  1. Kawazoe, Hiroshi; Akai, Kunihiko; Yasue, Kiyoshi, Analytical pretreatment device.
  2. Kawazoe, Hiroshi; Akai, Kunihiko; Yasue, Kiyoshi, Analytical pretreatment device.
  3. Allen, Robert David; Hedrick, James Lupton; Na, Young-Hye; Nelson, Alshakim; Sooriyakumaran, Ratnam, Composite membranes with performance enhancing layers.
  4. Chu Chaokang (Lexington MA) Ferraro Joseph F. (Londonderry NH) Ly Ann L. (Bedford MA), Low and medium flux membranes.
  5. Kloos, Steven D.; Rudie, Brian; Hodgins, Leonard T., Materials and methods for processing non-aqueous mixtures.
  6. Kloos, Steven D.; Schwartz, Keith; Rudie, Brian, Materials for processing non-aqueous mixtures and methods for their preparation.
  7. Han,Wenli; Ketterer,Martin; Lee,Jonnie; Nguyen,Thanh; Washington,George; Jordan,Delores; De,Dibyendu, Melt-spun polysulfone semipermeable membranes and methods for making the same.
  8. Meluch, Timothy B.; Chiang, Chung-Yuan; Jaanine, Hamid; Nguyen, Thanh; Radovich, John M.; Ruzius, Kees; Silva, Lalith K.; Washington, George, Melt-spun polysulfone semipermeable membranes and methods for making the same.
  9. Kitamura, Yoshihiro; Kuzuhara, Ikuya; Matsuo, Hiroshi; Ishizuka, Hirotoshi; Nishiura, Ken; Takashima, Yuu; Koumoto, Atsuhito, Method for manufacturing sheet-shaped separation membrane.
  10. Jeong, Seung-Pyo; Lee, Seung-Yup; Lee, Phill; Kwon, Hye-Jin; Shin, Chong-Kyu, Method of manufacturing reverse osmosis membrane, and reverse osmosis membrane manufactured thereby.
  11. Jeong, Seung-Pyo; Lee, Seung-Yup; Lee, Phill; Kwon, Hye-Jin; Shin, Chong-Kyu, Method of manufacturing reverse osmosis membrane, and reverse osmosis membrane manufactured thereby.
  12. Kawazoe, Hiroshi; Nakaso, Akishi; Arike, Shigeharu, Micro fluid system support and manufacturing method thereof.
  13. Kawazoe, Hiroshi; Nakaso, Akishi; Arike, Shigeharu, Micro fluid system support and manufacturing method thereof.
  14. Allen, Robert David; Na, Young-Hye; Sooriyakumaran, Ratnam, Polymeric films made from polyhedral oligomeric silsesquioxane (POSS) and a hydrophilic comonomer.
  15. Ferrer, Ismael; Cardinal, Richard S.; Kalayci, Veli, Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy.
  16. Ferrer, Ismael; Cardinal, Richard S.; Kalayci, Veli, Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy.
  17. Yuan,Youxin, Preparation of porous poly(aryl ether) articles and use thereof.
  18. Fritsch, Detlev; Bengtson, Gisela; Ebert, Katrin; Koll, Joachim; Merten, Petra, Process for producing a polymer membrane, and polymer membrane.
  19. Tsuyumoto, Michio; Yamato, Yo, Process for producing porous film and porous film.
  20. Diep, Jacquana T.; Na, Young-Hye; Sooriyakumaran, Ratnam; Vora, Ankit, Thin film composite membranes embedded with molecular cage compounds.
  21. Na, Young-Hye; Sooriyakumaran, Ratnam; Vora, Ankit; Diep, Jacquana, Thin film composite membranes embedded with molecular cage compounds.
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