BR7904888A - MEMBRANE OF SYNTHETIC POLYMERS, IN THE FORM OF FLAT SHEET, OF TUBULAR STRUCTURE OR HOLE WIRE, AND THE PROCESS OF OBTAINING IT - Google Patents

MEMBRANE OF SYNTHETIC POLYMERS, IN THE FORM OF FLAT SHEET, OF TUBULAR STRUCTURE OR HOLE WIRE, AND THE PROCESS OF OBTAINING IT

Info

Publication number
BR7904888A
BR7904888A BR7904888A BR7904888A BR7904888A BR 7904888 A BR7904888 A BR 7904888A BR 7904888 A BR7904888 A BR 7904888A BR 7904888 A BR7904888 A BR 7904888A BR 7904888 A BR7904888 A BR 7904888A
Authority
BR
Brazil
Prior art keywords
membrane
obtaining
tubular structure
synthetic polymers
flat sheet
Prior art date
Application number
BR7904888A
Other languages
Portuguese (pt)
Inventor
E Kessler
K Gerlach
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
Priority claimed from DE19782833623 external-priority patent/DE2833623A1/en
Priority claimed from DE2833493A external-priority patent/DE2833493C2/en
Application filed by Akzo Nv filed Critical Akzo Nv
Publication of BR7904888A publication Critical patent/BR7904888A/en

Links

Classifications

    • 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
    • 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
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0543—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0545—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
    • C08J2201/0546—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic
BR7904888A 1978-07-31 1979-07-30 MEMBRANE OF SYNTHETIC POLYMERS, IN THE FORM OF FLAT SHEET, OF TUBULAR STRUCTURE OR HOLE WIRE, AND THE PROCESS OF OBTAINING IT BR7904888A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782833623 DE2833623A1 (en) 1978-07-31 1978-07-31 Polypropylene membranes with porous surface - are used for filters, microfilters, membrane supports and as oxygenation agents
DE2833493A DE2833493C2 (en) 1978-07-31 1978-07-31 Hollow filaments

Publications (1)

Publication Number Publication Date
BR7904888A true BR7904888A (en) 1980-04-22

Family

ID=25775227

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7904888A BR7904888A (en) 1978-07-31 1979-07-30 MEMBRANE OF SYNTHETIC POLYMERS, IN THE FORM OF FLAT SHEET, OF TUBULAR STRUCTURE OR HOLE WIRE, AND THE PROCESS OF OBTAINING IT

Country Status (14)

Country Link
AU (1) AU531433B2 (en)
BR (1) BR7904888A (en)
CA (1) CA1140308A (en)
CH (1) CH644789A5 (en)
DK (1) DK152439C (en)
ES (1) ES8101135A1 (en)
FI (1) FI70733C (en)
FR (1) FR2432329A1 (en)
GB (1) GB2026381B (en)
IT (1) IT1118157B (en)
LU (1) LU81555A1 (en)
NL (1) NL189969C (en)
NO (1) NO153879C (en)
SE (1) SE7906441L (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047874B (en) * 1979-03-17 1983-12-21 Akzo Nv Apparatus in which heat is transferred through hollow threads as well as hollow threads suitable for this purpose
JPS56159128A (en) * 1980-05-15 1981-12-08 Asahi Chem Ind Co Ltd Thermoplastic resin porous film and production thereof
DE3049557A1 (en) * 1980-12-31 1982-07-29 Akzo Gmbh, 5600 Wuppertal POROESE TUBES
AU540708B2 (en) * 1982-01-25 1984-11-29 Mitsubishi Rayon Company Limited Water purifying method and system
DE3205289C2 (en) * 1982-02-15 1984-10-31 Akzo Gmbh, 5600 Wuppertal Process for the production of porous bodies with adjustable total pore volume, adjustable pore size and adjustable pore wall
CA1226112A (en) * 1982-09-09 1987-09-01 Minnesota Mining And Manufacturing Company Microporous sheet material, method of making and articles made therewith
US4539256A (en) * 1982-09-09 1985-09-03 Minnesota Mining And Manufacturing Co. Microporous sheet material, method of making and articles made therewith
ZA837304B (en) * 1982-09-30 1985-05-29 Extracorporeal Med Spec Semipermeable membranes and method of making the same
EP0110580A3 (en) * 1982-11-03 1986-06-11 Gelman Sciences, Inc. Improved process for removing pyrogens utilizing a hydrophobic microporous membrane
DE3301268A1 (en) * 1983-01-17 1984-07-26 Akzo Gmbh, 5600 Wuppertal METHOD AND DEVICE FOR PRODUCING HOLLOW BANDS
EP0133882B1 (en) * 1983-07-30 1990-04-04 Akzo Patente GmbH Moulded articles with pores
JPS6190705A (en) * 1984-10-09 1986-05-08 Terumo Corp Hollow yarn membrane and its production
US4778601A (en) * 1984-10-09 1988-10-18 Millipore Corporation Microporous membranes of ultrahigh molecular weight polyethylene
EP0193318B1 (en) * 1985-02-25 1990-12-19 Tonen Corporation Microporous membrane of ultra-high molecular weight alpha-olefin polymer
JPH0775622B2 (en) * 1985-07-16 1995-08-16 テルモ株式会社 Hollow fiber membrane for artificial lung, method for producing the same, and artificial lung using the hollow fiber membrane
US4609584A (en) * 1985-09-19 1986-09-02 Minnesota Mining And Manufacturing Company Absorptive devices
US4726989A (en) * 1986-12-11 1988-02-23 Minnesota Mining And Manufacturing Microporous materials incorporating a nucleating agent and methods for making same
US4867881A (en) * 1987-09-14 1989-09-19 Minnesota Minning And Manufacturing Company Orientied microporous film
PT92292B (en) * 1988-11-10 1995-08-09 Memtec Ltd PROCESS FOR THE PREPARATION OF POROUS MEMBRANES
JPH1092444A (en) 1996-09-13 1998-04-10 Japan Gore Tex Inc Solid high molecular electrolyte complex for electrochemical reaction device and electrochemical reaction device using it
US6277104B1 (en) 1997-08-25 2001-08-21 Mcneil-Ppc, Inc. Air permeable, liquid impermeable barrier structures and products made therefrom
US6635384B2 (en) 1998-03-06 2003-10-21 Gore Enterprise Holdings, Inc. Solid electrolyte composite for electrochemical reaction apparatus

Also Published As

Publication number Publication date
AU4932879A (en) 1980-02-07
NL7905816A (en) 1980-02-04
FI70733B (en) 1986-06-26
NO792308L (en) 1980-02-01
FI70733C (en) 1986-10-06
NO153879C (en) 1986-06-11
FI792365A (en) 1980-02-01
GB2026381A (en) 1980-02-06
CH644789A5 (en) 1984-08-31
NL189969C (en) 1993-09-16
NO153879B (en) 1986-03-03
DK152439C (en) 1988-09-12
DK314779A (en) 1980-02-01
IT7949805A0 (en) 1979-07-19
DK152439B (en) 1988-02-29
LU81555A1 (en) 1979-10-31
GB2026381B (en) 1982-08-18
SE7906441L (en) 1980-02-01
CA1140308A (en) 1983-02-01
IT1118157B (en) 1986-02-24
AU531433B2 (en) 1983-08-25
ES482967A0 (en) 1980-12-01
ES8101135A1 (en) 1980-12-01
FR2432329A1 (en) 1980-02-29
FR2432329B1 (en) 1984-01-27
NL189969B (en) 1993-04-16

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19940730