IT7949806A0 - PROCEDURE FOR THE PRODUCTION OF POROUS YARNS OR FILAMENTS - Google Patents

PROCEDURE FOR THE PRODUCTION OF POROUS YARNS OR FILAMENTS

Info

Publication number
IT7949806A0
IT7949806A0 IT7949806A IT4980679A IT7949806A0 IT 7949806 A0 IT7949806 A0 IT 7949806A0 IT 7949806 A IT7949806 A IT 7949806A IT 4980679 A IT4980679 A IT 4980679A IT 7949806 A0 IT7949806 A0 IT 7949806A0
Authority
IT
Italy
Prior art keywords
filaments
procedure
production
porous yarns
yarns
Prior art date
Application number
IT7949806A
Other languages
Italian (it)
Other versions
IT1118170B (en
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
Publication of IT7949806A0 publication Critical patent/IT7949806A0/en
Application granted granted Critical
Publication of IT1118170B publication Critical patent/IT1118170B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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

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)
IT49806/79A 1978-07-31 1979-07-19 PROCEDURE FOR THE PRODUCTION OF POROUS YARNS OR FILAMENTS IT1118170B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782833568 DE2833568A1 (en) 1978-07-31 1978-07-31 FEDING

Publications (2)

Publication Number Publication Date
IT7949806A0 true IT7949806A0 (en) 1979-07-19
IT1118170B IT1118170B (en) 1986-02-24

Family

ID=6045861

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49806/79A IT1118170B (en) 1978-07-31 1979-07-19 PROCEDURE FOR THE PRODUCTION OF POROUS YARNS OR FILAMENTS

Country Status (11)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159739A (en) * 1982-03-19 1983-09-22 オリンパス光学工業株式会社 Laser operation apparatus
JPS6052613A (en) * 1983-08-30 1985-03-25 Toyobo Co Ltd High-tensile and high-modulus polyethylene fiber
JP2543360B2 (en) * 1987-04-06 1996-10-16 トヨタ自動車株式会社 Porous polypropylene fiber
JPH0636809Y2 (en) * 1988-10-11 1994-09-28 株式会社モリタ製作所 Dental laser switching device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL128691C (en) * 1961-02-10
US3513110A (en) * 1965-07-26 1970-05-19 Celanese Corp Open-celled low density filamentary material
DE2550080B2 (en) * 1975-11-07 1978-03-09 Akzo Gmbh, 5600 Wuppertal Process for the production of filaments with discontinuous voids
DE2554124C3 (en) * 1975-12-02 1986-07-10 Bayer Ag, 5090 Leverkusen Process for the production of hydrophilic fibers and threads from acrylonitrile polymers

Also Published As

Publication number Publication date
BR7904887A (en) 1980-04-22
BE877930A (en) 1979-11-16
CA1140309A (en) 1983-02-01
GB2026935B (en) 1982-09-08
ES482966A1 (en) 1980-05-16
FR2432564B1 (en) 1982-12-10
JPS5522097A (en) 1980-02-16
GB2026935A (en) 1980-02-13
IT1118170B (en) 1986-02-24
CH637795B (en)
DE2833568A1 (en) 1980-02-21
AT372411B (en) 1983-10-10
CH637795GA3 (en) 1983-08-31
FR2432564A1 (en) 1980-02-29
DE2833568C2 (en) 1987-02-12
ATA506279A (en) 1983-02-15

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