NL7704427A - MICROPOROUS POLYETHER WIRES AND THE METHOD FOR MANUFACTURE THEREOF. - Google Patents

MICROPOROUS POLYETHER WIRES AND THE METHOD FOR MANUFACTURE THEREOF.

Info

Publication number
NL7704427A
NL7704427A NL7704427A NL7704427A NL7704427A NL 7704427 A NL7704427 A NL 7704427A NL 7704427 A NL7704427 A NL 7704427A NL 7704427 A NL7704427 A NL 7704427A NL 7704427 A NL7704427 A NL 7704427A
Authority
NL
Netherlands
Prior art keywords
per
fibres
copolymers
wires
manufacture
Prior art date
Application number
NL7704427A
Other languages
Dutch (nl)
Other versions
NL187967C (en
NL187967B (en
Original Assignee
Cordis Dow 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
Priority to AU24436/77A priority Critical patent/AU508669B2/en
Application filed by Cordis Dow Corp filed Critical Cordis Dow Corp
Priority to NLAANVRAGE7704427,A priority patent/NL187967C/en
Priority to GB16919/77A priority patent/GB1558856A/en
Priority to CH504377A priority patent/CH632169A5/en
Priority to FR7712320A priority patent/FR2388065A1/en
Priority to DE19772718155 priority patent/DE2718155A1/en
Publication of NL7704427A publication Critical patent/NL7704427A/en
Publication of NL187967B publication Critical patent/NL187967B/en
Application granted granted Critical
Publication of NL187967C publication Critical patent/NL187967C/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • 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
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • 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
    • B01D69/08—Hollow fibre membranes
    • 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
    • B01D71/26—Polyalkenes
    • B01D71/261—Polyethylene
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/08—Addition of substances to the spinning solution or to the melt for forming hollow filaments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

In microporous hollow fibres the pores are mutually adjoining and they have a permeability for oxygen gas (O2 gas) of at least 2 x 10<-5> cm<3>, under standard pressure and temperature conditions, per cm<2> of membrane area per second per cm of mercury column transmembrane pressure differential. The fibres consist of polyethylene homopolymers or copolymers or their mixture with other homo- or copolymers and at least one ester, the main part of the fibre being polyethylene. The fibres mentioned can be used as means for altering the concentration of a dissolved substance in an aqueous solution.
NLAANVRAGE7704427,A 1977-04-20 1977-04-22 METHOD FOR MANUFACTURING A MICROPOROUS HOLLOW FIBER NL187967C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU24436/77A AU508669B2 (en) 1977-04-20 1977-04-20 Microporous hollow polyethylene fibers
NLAANVRAGE7704427,A NL187967C (en) 1977-04-20 1977-04-22 METHOD FOR MANUFACTURING A MICROPOROUS HOLLOW FIBER
GB16919/77A GB1558856A (en) 1977-04-20 1977-04-22 Microporus polyethylene hollow fibres and process for preparing them
CH504377A CH632169A5 (en) 1977-04-20 1977-04-22 Microporous hollow fibres and manufacture thereof
FR7712320A FR2388065A1 (en) 1977-04-20 1977-04-22 POLYETHYLENE HOLLOW FIBERS, MICROPOROUS, AND THEIR MANUFACTURING PROCESS
DE19772718155 DE2718155A1 (en) 1977-04-20 1977-04-23 MICROPOROUS POLYAETHYLENE HOLLOW FIBER AND METHOD FOR MANUFACTURING IT

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AU24436/77A AU508669B2 (en) 1977-04-20 1977-04-20 Microporous hollow polyethylene fibers
NLAANVRAGE7704427,A NL187967C (en) 1977-04-20 1977-04-22 METHOD FOR MANUFACTURING A MICROPOROUS HOLLOW FIBER
GB16919/77A GB1558856A (en) 1977-04-20 1977-04-22 Microporus polyethylene hollow fibres and process for preparing them
CH504377A CH632169A5 (en) 1977-04-20 1977-04-22 Microporous hollow fibres and manufacture thereof
FR7712320A FR2388065A1 (en) 1977-04-20 1977-04-22 POLYETHYLENE HOLLOW FIBERS, MICROPOROUS, AND THEIR MANUFACTURING PROCESS
DE19772718155 DE2718155A1 (en) 1977-04-20 1977-04-23 MICROPOROUS POLYAETHYLENE HOLLOW FIBER AND METHOD FOR MANUFACTURING IT

Publications (3)

Publication Number Publication Date
NL7704427A true NL7704427A (en) 1978-10-24
NL187967B NL187967B (en) 1991-10-01
NL187967C NL187967C (en) 1992-03-02

Family

ID=27542612

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7704427,A NL187967C (en) 1977-04-20 1977-04-22 METHOD FOR MANUFACTURING A MICROPOROUS HOLLOW FIBER

Country Status (6)

Country Link
AU (1) AU508669B2 (en)
CH (1) CH632169A5 (en)
DE (1) DE2718155A1 (en)
FR (1) FR2388065A1 (en)
GB (1) GB1558856A (en)
NL (1) NL187967C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026718A1 (en) * 1980-07-15 1982-02-04 Akzo Gmbh, 5600 Wuppertal HOLLOW FIBER MEMBRANE FOR PLASMA SEPARATION
US4670341A (en) * 1985-05-17 1987-06-02 W. R. Grace & Co. Hollow fiber
US4726989A (en) † 1986-12-11 1988-02-23 Minnesota Mining And Manufacturing Microporous materials incorporating a nucleating agent and methods for making same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6510872A (en) * 1964-09-02 1966-03-03
DE2630374A1 (en) * 1975-07-09 1977-01-13 Mitsubishi Rayon Co POROESE POLYPROPYLENE HOLLOW THREADS AND THE PROCESS FOR THEIR MANUFACTURING
US4082658A (en) * 1977-02-09 1978-04-04 Monsanto Company Hollow fiber membranes of ethylene copolymers and process for use

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6510872A (en) * 1964-09-02 1966-03-03
DE2630374A1 (en) * 1975-07-09 1977-01-13 Mitsubishi Rayon Co POROESE POLYPROPYLENE HOLLOW THREADS AND THE PROCESS FOR THEIR MANUFACTURING
US4082658A (en) * 1977-02-09 1978-04-04 Monsanto Company Hollow fiber membranes of ethylene copolymers and process for use

Also Published As

Publication number Publication date
DE2718155C2 (en) 1987-05-21
GB1558856A (en) 1980-01-09
FR2388065A1 (en) 1978-11-17
NL187967C (en) 1992-03-02
AU508669B2 (en) 1980-03-27
AU2443677A (en) 1978-10-26
NL187967B (en) 1991-10-01
FR2388065B1 (en) 1980-02-01
CH632169A5 (en) 1982-09-30
DE2718155A1 (en) 1979-03-15

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BT A notification was added to the application dossier and made available to the public
A85 Still pending on 85-01-01
BB A search report has been drawn up
BC A request for examination has been filed
CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: CD MEDICAL, INC.

CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: DOW CHEMICAL COMPANY. THE -

V4 Discontinued because of reaching the maximum lifetime of a patent

Free format text: 970422