CA1140309A - Filaments with porous surface - Google Patents

Filaments with porous surface

Info

Publication number
CA1140309A
CA1140309A CA000332832A CA332832A CA1140309A CA 1140309 A CA1140309 A CA 1140309A CA 000332832 A CA000332832 A CA 000332832A CA 332832 A CA332832 A CA 332832A CA 1140309 A CA1140309 A CA 1140309A
Authority
CA
Canada
Prior art keywords
threads
bath
homogeneous mixture
temperature
polymer
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
CA000332832A
Other languages
English (en)
French (fr)
Inventor
Klaus Gerlach
Erich Kessler
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.)
Akzo NV
Original Assignee
Akzo NV
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
Application filed by Akzo NV filed Critical Akzo NV
Application granted granted Critical
Publication of CA1140309A publication Critical patent/CA1140309A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08Hollow fibre membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane manufacture
    • B01D67/0023Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
CA000332832A 1978-07-31 1979-07-30 Filaments with porous surface Expired CA1140309A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782833568 DE2833568A1 (de) 1978-07-31 1978-07-31 Faeden
DEP2833568.4-26 1978-07-31

Publications (1)

Publication Number Publication Date
CA1140309A true CA1140309A (en) 1983-02-01

Family

ID=6045861

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000332832A Expired CA1140309A (en) 1978-07-31 1979-07-30 Filaments with porous surface

Country Status (11)

Country Link
JP (1) JPS5522097A (xx)
AT (1) AT372411B (xx)
BE (1) BE877930A (xx)
BR (1) BR7904887A (xx)
CA (1) CA1140309A (xx)
CH (1) CH637795B (xx)
DE (1) DE2833568A1 (xx)
ES (1) ES482966A1 (xx)
FR (1) FR2432564A1 (xx)
GB (1) GB2026935B (xx)
IT (1) IT1118170B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159739A (ja) * 1982-03-19 1983-09-22 オリンパス光学工業株式会社 レ−ザ手術装置
JPS6052613A (ja) * 1983-08-30 1985-03-25 Toyobo Co Ltd 高強力、高弾性率ポリエチレン繊維
JP2543360B2 (ja) * 1987-04-06 1996-10-16 トヨタ自動車株式会社 多孔質ポリプロピレン繊維
JPH0636809Y2 (ja) * 1988-10-11 1994-09-28 株式会社モリタ製作所 歯科用レーザ切換装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL128691C (xx) * 1961-02-10
US3513110A (en) * 1965-07-26 1970-05-19 Celanese Corp Open-celled low density filamentary material
DE2550080B2 (de) * 1975-11-07 1978-03-09 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung von Filamenten mit nicht durchgehenden Hohlräumen
DE2554124C3 (de) * 1975-12-02 1986-07-10 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von hydrophilen Fasern und Fäden aus Acrylnitrilpolymerisaten

Also Published As

Publication number Publication date
GB2026935A (en) 1980-02-13
FR2432564B1 (xx) 1982-12-10
JPS5522097A (en) 1980-02-16
ES482966A1 (es) 1980-05-16
FR2432564A1 (fr) 1980-02-29
ATA506279A (de) 1983-02-15
IT1118170B (it) 1986-02-24
CH637795B (de)
BE877930A (fr) 1979-11-16
IT7949806A0 (it) 1979-07-19
BR7904887A (pt) 1980-04-22
CH637795GA3 (xx) 1983-08-31
DE2833568C2 (xx) 1987-02-12
DE2833568A1 (de) 1980-02-21
AT372411B (de) 1983-10-10
GB2026935B (en) 1982-09-08

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Legal Events

Date Code Title Description
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