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
Grant status
Application
Patent type
Prior art keywords
fibre
axis
weight
microns
nitric acid
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
Original Assignee
Asahi Kasei Corp
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/40Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42Polymers of nitriles, e.g. polyacrylonitrile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/18Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02Hollow fibre modules
    • B01D63/021Manufacturing thereof
    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/24Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/24Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D01D5/247Discontinuous hollow structure or microporous structure
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2973Particular cross section
    • Y10T428/2975Tubular or cellular
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2973Particular cross section
    • Y10T428/2978Surface characteristic
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/298Physical dimension

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)

Priority Applications (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 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 (5)

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

Families Citing this family (40)

* Cited by examiner, † Cited by third party
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
JPS5652123B2 (en) * 1975-07-09 1981-12-10
JPS5238988B2 (en) * 1975-08-25 1977-10-01
US4061821A (en) * 1975-12-29 1977-12-06 Asahi Kasei Kogyo Kabushiki Kaisha Semipermeable composite membranes
JPS5812932B2 (en) * 1977-06-30 1983-03-10 Nippon Zeon Co
US4175153A (en) * 1978-05-16 1979-11-20 Monsanto Company Inorganic anisotropic hollow fibers
DE2935097C2 (en) * 1978-09-07 1990-04-12 Kuraray Co., Ltd., Kurashiki, Okayama, Jp
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
FR2565842B1 (en) * 1984-06-13 1990-03-23 Inst Nat Rech Chimique Development brings to operations ultrafiltration and microfiltration
WO1986000028A1 (en) * 1984-06-13 1986-01-03 Institut National De Recherche Chimique Appliquee Hollow fibres, production method thereof 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
EP0586559B1 (en) * 1991-05-21 1996-02-21 Brown University Research Foundation Apparatus for forming hollow fibers and said fibers
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
JP2003505227A (en) 1999-07-21 2003-02-12 ザ、プロクター、エンド、ギャンブル、カンパニー The method of removing the microorganisms from the microorganism filter and water
WO2002058828A1 (en) * 2001-01-23 2002-08-01 Innovasep Technology Corporation Asymmetric hollow fiber membranes
DE10134447B4 (en) * 2001-07-16 2006-04-20 Gkss-Forschungszentrum Geesthacht Gmbh Support membrane for Biohybridorgane, methods of making and using
WO2003009926A1 (en) * 2001-07-24 2003-02-06 Asahi Medical Co., Ltd. Hollow fiber membrane for purifying blood
US7718260B2 (en) * 2001-07-31 2010-05-18 Mitsubishi Rayon Co., Ltd. Hollow fiber having inner wall into which comb polymer is introduced, hollow fiber impregnated with gel, and thin slice of fiber array
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 materials, corresponding water filters and processes for using the same
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
US7615152B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products, Inc. Water filter device
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
CN100503020C (en) * 2002-09-12 2009-06-24 旭化成可乐丽医疗株式会社 Plasma purifying membrane and plasma purifying system
WO2006069677A3 (en) * 2004-12-30 2006-12-07 Soheil Asgari Combination comprising an agent providing a signal, an implant material and a drug
DK1836239T3 (en) 2005-01-13 2009-01-19 Cinv Ag Composite materials containing carbon nanoparticles
JP2008528722A (en) * 2005-01-24 2008-07-31 シンベンション アーゲー Metal-containing composite material
KR20070100836A (en) * 2005-02-03 2007-10-11 신벤션 아게 Drug delivery materials made by sol/gel technology
CN101142149A (en) * 2005-03-18 2008-03-12 金文申有限公司 Process for the preparation of porous sintered metal materials
EP1902087A1 (en) * 2005-07-01 2008-03-26 Cinvention Ag Process for the production of porous reticulated composite materials
CN101212990A (en) * 2005-07-01 2008-07-02 金文申有限公司 Medical devices comprising a reticulated composite material
GB201104337D0 (en) 2011-03-15 2011-04-27 Glaxo Group Ltd Novel device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL179065B (en) * 1952-06-28 Werner & Pfleiderer
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

Also Published As

Publication number Publication date Type
US3871950A (en) 1975-03-18 grant
DE2321460A1 (en) 1973-12-06 application
CA1042166A1 (en) grant
CA1042166A (en) 1978-11-14 grant
DE2321460B2 (en) 1974-10-10 application
DE2321460C3 (en) 1975-05-28 grant
FR2182202A1 (en) 1973-12-07 application
FR2182202B1 (en) 1977-02-11 grant

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930417