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GB1434055A - Hollow fibres of acrylonitrile polymers for use as an ultrafitter and method for producing the same - Google Patents

Hollow fibres of acrylonitrile polymers for use as an ultrafitter and method for producing the same

Info

Publication number
GB1434055A
GB1434055A GB1864273A GB1864273A GB1434055A GB 1434055 A GB1434055 A GB 1434055A GB 1864273 A GB1864273 A GB 1864273A GB 1864273 A GB1864273 A GB 1864273A GB 1434055 A GB1434055 A GB 1434055A
Authority
GB
United Kingdom
Prior art keywords
fibre
axis
microns
nitric acid
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1864273A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP4275072A external-priority patent/JPS496552A/ja
Priority claimed from JP157873A external-priority patent/JPS5215072B2/ja
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Publication of GB1434055A publication Critical patent/GB1434055A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
    • B01D71/421—Polyacrylonitrile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B01D63/021—Manufacturing thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D01D5/247—Discontinuous hollow structure or microporous structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2975—Tubular or cellular
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2978—Surface characteristic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/298—Physical dimension

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

1434055 Hollow polyacrylonitrile filaments ASAHI KASEI KOGYO. KK 18 April 1973 [28 April 1972 29 Dec 1972] 18642/73 Heading B5B [Also in Divisions B1 and C3] Hollow process fibres are made by dissolving a polymer containing at least 60 mol per cent acrylonitrile units in aqueous nitric acid containing 65 to 95% by weight of nitric acid to give a solution containing 2 to 40% by weight of polymer, and then extruding the solution through a spinneret having a ring orifice into an aqueous coagulation bath containing 0 to 30% by weight of nitric acid at a temperature of 4‹ to 50‹ C., whilst feeding a liquid coagulant into the central portion of the ring orifice. Fig. 2 shows a suitable spinneret nozzle, the spinning solution is fed through tube 7 and the coagulant injected into the fibre via tube 6. The preferred internal coagulant is water. The resulting fibre has a reticulated porous region, the pores being of substantially uniform size, with closed cylindrical or ellipsoidal shaped voids having a diameter in the direction of the short axis of 10 to 50 microns and a long axis pointing towards the fibre axis. The voids are arranged concentrically around the fibre axis and have long axes at least twice the length of the maximum cross-sectional diameter. The diameters of their cross-sections are substantially equal on the same hypothetical cylindrical surfaces having longitudinal axes coincident with the longitudinal axis of the fibre. On either the outside or on both sides of the the porous reticulated layer, and concentric with it, lies a porous layer. The pores here have a gradient in size decreasing from 5 to 1 microns adjacent to the reticulated layer to 0À1 microns to a matter of Angstrom units at the fibre surface.
GB1864273A 1972-04-28 1973-04-18 Hollow fibres of acrylonitrile polymers for use as an ultrafitter and method for producing the same Expired GB1434055A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4275072A JPS496552A (en) 1972-04-28 1972-04-28
JP157873A JPS5215072B2 (en) 1972-12-29 1972-12-29

Publications (1)

Publication Number Publication Date
GB1434055A true GB1434055A (en) 1976-04-28

Family

ID=26334826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1864273A Expired GB1434055A (en) 1972-04-28 1973-04-18 Hollow fibres of acrylonitrile polymers for use as an ultrafitter and method for producing the same

Country Status (6)

Country Link
US (1) US3871950A (en)
CA (1) CA1042166A (en)
DE (1) DE2321460C3 (en)
FR (1) FR2182202B1 (en)
GB (1) GB1434055A (en)
IT (1) IT982837B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364759A (en) 1979-03-28 1982-12-21 Monsanto Company Methods for preparing anisotropic hollow fiber membranes comprising polymer of acrylonitrile and styrene and hollow fiber membranes produced therefrom

Families Citing this family (41)

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Publication number Priority date Publication date Assignee Title
US4183884A (en) * 1973-01-24 1980-01-15 Ceskoslovenska Akademie Ved Method for manufacturing hydrogel tubes
US4209307A (en) * 1974-08-14 1980-06-24 Monsanto Company Method for filtering through highly permeable acrylic hollow fibers
US3975478A (en) * 1974-08-14 1976-08-17 Monsanto Company Method for producing highly permeable acrylic hollow fibers
JPS5215627A (en) * 1975-07-09 1977-02-05 Mitsubishi Rayon Co Ltd Porous polypropylene hollow fibers and a process for manufacturing the m
JPS5226380A (en) * 1975-08-25 1977-02-26 Sumitomo Chem Co Ltd Method of making semipermeable membranes
US4061821A (en) * 1975-12-29 1977-12-06 Asahi Kasei Kogyo Kabushiki Kaisha Semipermeable composite membranes
JPS5812932B2 (en) * 1977-06-30 1983-03-10 日本ゼオン株式会社 Hollow fiber manufacturing method
US4175153A (en) * 1978-05-16 1979-11-20 Monsanto Company Inorganic anisotropic hollow fibers
DE2935097A1 (en) * 1978-09-07 1980-03-20 Kuraray Co AETHYLENE / VINYL ALCOHOL COPOLYMER MEMBRANE
FR2565842B1 (en) * 1984-06-13 1990-03-23 Inst Nat Rech Chimique IMPROVEMENT FOR ULTRAFILTRATION AND MICROFILTRATION OPERATIONS
EP0183757B1 (en) * 1984-06-13 1991-10-30 Lyonnaise Des Eaux - Dumez Method of producing hollow fibres and their applications particularly in the field of membrane-type separations
US4670341A (en) * 1985-05-17 1987-06-02 W. R. Grace & Co. Hollow fiber
US4900626A (en) * 1987-07-28 1990-02-13 Rhone-Poulenc Recherches Hollow composite fibers selectively permeable to water vapor
US5049276A (en) * 1988-10-13 1991-09-17 Fuji Photo Film Co., Ltd. Hollow fiber membrane
US5338605A (en) * 1990-01-31 1994-08-16 Ketema, Inc. Hollow carbon fibers
ATE134393T1 (en) * 1991-05-21 1996-03-15 Univ Brown Res Found HOLLOW FIBERS AND DEVICE FOR PRODUCING THEM
EP0547471B1 (en) * 1991-12-14 1997-03-12 Akzo Nobel N.V. Polyacrylnitrile membrane
US5472607A (en) * 1993-12-20 1995-12-05 Zenon Environmental Inc. Hollow fiber semipermeable membrane of tubular braid
US5714072A (en) * 1995-11-06 1998-02-03 Hoechst Celanese Corporation Method for solvent extraction using a dual-skinned asymmetric microporous membrane
US6354444B1 (en) * 1997-07-01 2002-03-12 Zenon Environmental Inc. Hollow fiber membrane and braided tubular support therefor
EP1198257A1 (en) 1999-07-21 2002-04-24 The Procter & Gamble Company Microorganism filter and method for removing microorganism from water
CA2434940A1 (en) * 2001-01-23 2002-08-01 Attila Herczeg Asymmetric hollow fiber membranes
DE10134447B4 (en) * 2001-07-16 2006-04-20 Gkss-Forschungszentrum Geesthacht Gmbh Carrier membrane for biohybrid organs, method of preparation and use
DE60236290D1 (en) * 2001-07-24 2010-06-17 Asahi Kasei Kuraray Medical Co HOLLOW FIBER MEMBRANE FOR CLEANSING BLOOD
JP3515570B2 (en) * 2001-07-31 2004-04-05 三菱レイヨン株式会社 Hollow fiber, gel-filled hollow fiber, and fiber array flake with comb-shaped polymer introduced on the inner wall
US7615152B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products, Inc. Water filter device
US7614507B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same
US20050279696A1 (en) * 2001-08-23 2005-12-22 Bahm Jeannine R Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
KR100777951B1 (en) * 2001-08-23 2007-11-28 더 프록터 앤드 갬블 캄파니 Water filter material, corresponding water filter and method of use thereof
US7614508B2 (en) * 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing silver coated particles and processes for using the same
AU2003261571A1 (en) * 2002-09-12 2004-04-30 Asahi Medical Co., Ltd. Plasma purification membrane and plasma purification system
WO2006069677A2 (en) * 2004-12-30 2006-07-06 Cinvention Ag Combination comprising an agent providing a signal, an implant material and a drug
DE602005010747D1 (en) 2005-01-13 2008-12-11 Cinv Ag CARBON NANOPARTICLES CONTAINING COMPOSITE MATERIALS
AU2006207461A1 (en) * 2005-01-24 2006-07-27 Cinvention Ag Metal containing composite materials
KR20070100836A (en) * 2005-02-03 2007-10-11 신벤션 아게 Drug Delivery Substances Prepared by Sol / Gel Technology
EP1858820A2 (en) * 2005-03-18 2007-11-28 Cinvention Ag Process for the preparation of porous sintered metal materials
EA200800196A1 (en) * 2005-07-01 2008-06-30 Синвеншен Аг METHOD OF MAKING A POROUS COMPOSITION MATERIAL
BRPI0612602A2 (en) * 2005-07-01 2010-11-23 Cinv Ag medical devices comprising a crosslinked composite material
GB201104337D0 (en) 2011-03-15 2011-04-27 Glaxo Group Ltd Novel device
DE102016212056A1 (en) * 2016-07-01 2018-01-04 Mahle International Gmbh Filter medium and method for producing such a filter medium
US11930867B2 (en) 2020-07-30 2024-03-19 Fxi Inc. Limited Coated substrates and articles with anti-viral properties, and fabrication processes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL105850C (en) * 1952-06-28 1900-01-01
US3088188A (en) * 1960-01-04 1963-05-07 Monsanto Chemicals Manufacture of shaped objects of acrylonitrile polymer by wet spinning
US3147322A (en) * 1963-01-23 1964-09-01 Asahi Chemical Ind Method for preparing acrylonitrile synthetic fiber
US3636187A (en) * 1967-11-09 1972-01-18 Asahi Chemical Ind Process for the manufacture of acrylonitrile synthetic fibers
FR1586563A (en) * 1968-10-29 1970-02-20
US3698994A (en) * 1971-01-27 1972-10-17 American Cyanamid Co Acrylic synthetic fibers having improved properties and process for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364759A (en) 1979-03-28 1982-12-21 Monsanto Company Methods for preparing anisotropic hollow fiber membranes comprising polymer of acrylonitrile and styrene and hollow fiber membranes produced therefrom

Also Published As

Publication number Publication date
FR2182202B1 (en) 1977-02-11
DE2321460A1 (en) 1973-12-06
DE2321460C3 (en) 1975-05-28
FR2182202A1 (en) 1973-12-07
IT982837B (en) 1974-10-21
US3871950A (en) 1975-03-18
CA1042166A (en) 1978-11-14
DE2321460B2 (en) 1974-10-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930417