NL7711594A - PERMSELECTIVE MEMBRANE AS WELL AS A SOLUTION AND METHOD FOR PREPARING A PERMS SELECTIVE MEMBRANE. - Google Patents

PERMSELECTIVE MEMBRANE AS WELL AS A SOLUTION AND METHOD FOR PREPARING A PERMS SELECTIVE MEMBRANE.

Info

Publication number
NL7711594A
NL7711594A NL7711594A NL7711594A NL7711594A NL 7711594 A NL7711594 A NL 7711594A NL 7711594 A NL7711594 A NL 7711594A NL 7711594 A NL7711594 A NL 7711594A NL 7711594 A NL7711594 A NL 7711594A
Authority
NL
Netherlands
Prior art keywords
membrane
perms
preparing
well
solution
Prior art date
Application number
NL7711594A
Other languages
Dutch (nl)
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of NL7711594A publication Critical patent/NL7711594A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
    • C08L79/02—Polyamines
    • 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
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • B01D67/00111—Polymer pretreatment in the casting solutions
    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0083—Thermal after-treatment
    • 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/38—Hydrophobic membranes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
NL7711594A 1976-10-21 1977-10-21 PERMSELECTIVE MEMBRANE AS WELL AS A SOLUTION AND METHOD FOR PREPARING A PERMS SELECTIVE MEMBRANE. NL7711594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73463176A 1976-10-21 1976-10-21

Publications (1)

Publication Number Publication Date
NL7711594A true NL7711594A (en) 1978-04-25

Family

ID=24952479

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7711594A NL7711594A (en) 1976-10-21 1977-10-21 PERMSELECTIVE MEMBRANE AS WELL AS A SOLUTION AND METHOD FOR PREPARING A PERMS SELECTIVE MEMBRANE.

Country Status (7)

Country Link
JP (1) JPS5351184A (en)
CA (1) CA1107424A (en)
DE (1) DE2747408A1 (en)
FR (1) FR2368289A1 (en)
GB (1) GB1561200A (en)
IT (1) IT1143711B (en)
NL (1) NL7711594A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028213C2 (en) * 1980-07-25 1990-12-06 Akzo Gmbh, 5600 Wuppertal Process for the production of an ultrafiltration membrane made of polyamide and a membrane produced therefrom
GB8320797D0 (en) * 1983-08-02 1983-09-01 Shell Int Research Very thin dense membrane
AU4787685A (en) * 1984-09-27 1986-04-10 E.I. Du Pont De Nemours And Company Aromatic polyamide membrane for reverse osmosis
NL9000329A (en) * 1990-02-12 1991-09-02 Stork Friesland Bv HYDROFILE MEMBRANE, METHOD FOR MANUFACTURING A HYDROFILE MEMBRANE.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3660281A (en) * 1970-05-06 1972-05-02 Du Pont Permeation separation membranes
US3775361A (en) * 1971-10-21 1973-11-27 Du Pont Preparation of stable concentrated solutions of aromatic nitrogen-linked condensation polymers
US3954607A (en) * 1972-05-01 1976-05-04 E. I. Du Pont De Nemours And Company Permselective membranes of diacyl hydrazide-containing aromatic polymers having selected metals complexed therewith
US3853754A (en) * 1972-07-20 1974-12-10 Du Pont Membrane separation of homogeneous catalysts from nitrile solutions
US3816303A (en) * 1972-12-20 1974-06-11 Us Interior Poly(n-amido)imides as semipermeable membranes
JPS568645B2 (en) * 1974-09-05 1981-02-25
US4159251A (en) * 1976-09-29 1979-06-26 Pharmaco, Inc. Ultrafiltration membranes based on heteroaromatic polymers

Also Published As

Publication number Publication date
FR2368289A1 (en) 1978-05-19
FR2368289B1 (en) 1984-06-08
DE2747408A1 (en) 1978-04-27
DE2747408C2 (en) 1987-06-25
IT1143711B (en) 1986-10-22
JPS6127085B2 (en) 1986-06-24
GB1561200A (en) 1980-02-13
CA1107424A (en) 1981-08-18
JPS5351184A (en) 1978-05-10

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BI The patent application has been withdrawn