DK157978C - Membran af den anisotrope geltype af polypiperazinamider og fremgangsmaade til fremstilling deraf - Google Patents

Membran af den anisotrope geltype af polypiperazinamider og fremgangsmaade til fremstilling deraf

Info

Publication number
DK157978C
DK157978C DK240274A DK240274A DK157978C DK 157978 C DK157978 C DK 157978C DK 240274 A DK240274 A DK 240274A DK 240274 A DK240274 A DK 240274A DK 157978 C DK157978 C DK 157978C
Authority
DK
Denmark
Prior art keywords
polypiperazinamides
procedures
membrane
producing
gel type
Prior art date
Application number
DK240274A
Other languages
English (en)
Other versions
DK157978B (da
Inventor
Lino Credali
Vincenzo Guidotti
Original Assignee
Montedison Spa
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 Montedison Spa filed Critical Montedison Spa
Publication of DK157978B publication Critical patent/DK157978B/da
Application granted granted Critical
Publication of DK157978C publication Critical patent/DK157978C/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen
    • 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/40—Polyamides containing oxygen in the form of ether groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polyamides (AREA)
DK240274A 1973-05-07 1974-05-02 Membran af den anisotrope geltype af polypiperazinamider og fremgangsmaade til fremstilling deraf DK157978C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2377073 1973-05-07
IT23770/73A IT987156B (it) 1973-05-07 1973-05-07 Polipiperazinammidi copolipiperazi nammidi e membrane per osmosi in versa a base di tali materiali polimerici

Publications (2)

Publication Number Publication Date
DK157978B DK157978B (da) 1990-03-12
DK157978C true DK157978C (da) 1990-08-27

Family

ID=11209824

Family Applications (1)

Application Number Title Priority Date Filing Date
DK240274A DK157978C (da) 1973-05-07 1974-05-02 Membran af den anisotrope geltype af polypiperazinamider og fremgangsmaade til fremstilling deraf

Country Status (11)

Country Link
JP (1) JPS575565B2 (da)
BE (1) BE814603A (da)
CA (1) CA1029496A (da)
DE (1) DE2421353A1 (da)
DK (1) DK157978C (da)
ES (1) ES426000A1 (da)
FR (1) FR2228805B1 (da)
GB (1) GB1422767A (da)
IL (1) IL44761A (da)
IT (1) IT987156B (da)
NL (1) NL176176C (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1040274B (it) * 1975-07-30 1979-12-20 Consiglio Nazionale Ricerche Procedimento di preparazione di membrane anisotrope supportate per osmosi inversa a base di poliammidi sintetiche
JPS6246014Y2 (da) * 1980-10-17 1987-12-10
US4433117A (en) * 1982-03-23 1984-02-21 Kuraray Co., Ltd. Copolyesteramide and production of the same

Also Published As

Publication number Publication date
IL44761A (en) 1977-10-31
NL176176C (nl) 1985-03-01
GB1422767A (en) 1976-01-28
JPS5081978A (da) 1975-07-03
NL7405900A (da) 1974-11-11
BE814603A (fr) 1974-11-06
FR2228805B1 (da) 1976-12-17
CA1029496A (en) 1978-04-11
IL44761A0 (en) 1974-07-31
NL176176B (nl) 1984-10-01
ES426000A1 (es) 1976-11-01
JPS575565B2 (da) 1982-01-30
IT987156B (it) 1975-02-20
FR2228805A1 (da) 1974-12-06
DK157978B (da) 1990-03-12
DE2421353A1 (de) 1974-11-21

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