FR2368289B1 - - Google Patents

Info

Publication number
FR2368289B1
FR2368289B1 FR7731590A FR7731590A FR2368289B1 FR 2368289 B1 FR2368289 B1 FR 2368289B1 FR 7731590 A FR7731590 A FR 7731590A FR 7731590 A FR7731590 A FR 7731590A FR 2368289 B1 FR2368289 B1 FR 2368289B1
Authority
FR
France
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
FR7731590A
Other languages
French (fr)
Other versions
FR2368289A1 (fr
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of FR2368289A1 publication Critical patent/FR2368289A1/fr
Application granted granted Critical
Publication of FR2368289B1 publication Critical patent/FR2368289B1/fr
Granted legal-status Critical Current

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)
FR7731590A 1976-10-21 1977-10-20 Solution et procede pour la preparation de membranes a permeabilite selective Granted FR2368289A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2368289A1 FR2368289A1 (fr) 1978-05-19
FR2368289B1 true FR2368289B1 (es) 1984-06-08

Family

ID=24952479

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731590A Granted FR2368289A1 (fr) 1976-10-21 1977-10-20 Solution et procede pour la preparation de membranes a permeabilite selective

Country Status (7)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028213C2 (de) * 1980-07-25 1990-12-06 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung einer Ultrafiltrationsmembran aus Polyamid und daraus hergestellte Membran
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 (nl) * 1990-02-12 1991-09-02 Stork Friesland Bv Hydrofiel membraan, werkwijze ter vervaardiging van een hydrofiel membraan.

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 (es) * 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
JPS6127085B2 (es) 1986-06-24
GB1561200A (en) 1980-02-13
FR2368289A1 (fr) 1978-05-19
DE2747408C2 (es) 1987-06-25
DE2747408A1 (de) 1978-04-27
CA1107424A (en) 1981-08-18
NL7711594A (nl) 1978-04-25
JPS5351184A (en) 1978-05-10
IT1143711B (it) 1986-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse