CA1029496A - Polymeric piperazinamides and membranes for reverse osmosis made therefrom - Google Patents

Polymeric piperazinamides and membranes for reverse osmosis made therefrom

Info

Publication number
CA1029496A
CA1029496A CA199,175A CA199175A CA1029496A CA 1029496 A CA1029496 A CA 1029496A CA 199175 A CA199175 A CA 199175A CA 1029496 A CA1029496 A CA 1029496A
Authority
CA
Canada
Prior art keywords
piperazinamides
membranes
polymeric
reverse osmosis
made therefrom
Prior art date
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
CA199,175A
Other languages
French (fr)
Other versions
CA199175S (en
Inventor
Lino Credali
Vincenzo Guidotti
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.)
Montedison SpA
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
Application granted granted Critical
Publication of CA1029496A publication Critical patent/CA1029496A/en
Expired legal-status Critical Current

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)
CA199,175A 1973-05-07 1974-05-07 Polymeric piperazinamides and membranes for reverse osmosis made therefrom Expired CA1029496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23770/73A IT987156B (en) 1973-05-07 1973-05-07 POLYPERAZINAMIDES COPOLIPERAZI NAMIDES AND MEMBRANES FOR OSMOSIS IN VERSA BASED ON SUCH POLYMERIC MATERIALS

Publications (1)

Publication Number Publication Date
CA1029496A true CA1029496A (en) 1978-04-11

Family

ID=11209824

Family Applications (1)

Application Number Title Priority Date Filing Date
CA199,175A Expired CA1029496A (en) 1973-05-07 1974-05-07 Polymeric piperazinamides and membranes for reverse osmosis made therefrom

Country Status (11)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1040274B (en) * 1975-07-30 1979-12-20 Consiglio Nazionale Ricerche PROCEDURE FOR PREPARATION OF ANISOTROPIC MEMBRANES SUPPORTED FOR REVERSE OSMOSIS BASED ON SYNTHETIC POLYAMIDES
JPS6246014Y2 (en) * 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
IT987156B (en) 1975-02-20
JPS5081978A (en) 1975-07-03
IL44761A0 (en) 1974-07-31
NL176176C (en) 1985-03-01
DE2421353A1 (en) 1974-11-21
NL176176B (en) 1984-10-01
BE814603A (en) 1974-11-06
GB1422767A (en) 1976-01-28
FR2228805A1 (en) 1974-12-06
FR2228805B1 (en) 1976-12-17
ES426000A1 (en) 1976-11-01
DK157978B (en) 1990-03-12
DK157978C (en) 1990-08-27
NL7405900A (en) 1974-11-11
JPS575565B2 (en) 1982-01-30
IL44761A (en) 1977-10-31

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