IT987156B - Polipiperazinammidi copolipiperazi nammidi e membrane per osmosi in versa a base di tali materiali polimerici - Google Patents
Polipiperazinammidi copolipiperazi nammidi e membrane per osmosi in versa a base di tali materiali polimericiInfo
- Publication number
- IT987156B IT987156B IT23770/73A IT2377073A IT987156B IT 987156 B IT987156 B IT 987156B IT 23770/73 A IT23770/73 A IT 23770/73A IT 2377073 A IT2377073 A IT 2377073A IT 987156 B IT987156 B IT 987156B
- Authority
- IT
- Italy
- Prior art keywords
- polyperazinamides
- copoliperazi
- namides
- osmosis
- membranes
- Prior art date
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)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
DK240274A DK157978C (da) | 1973-05-07 | 1974-05-02 | Membran af den anisotrope geltype af polypiperazinamider og fremgangsmaade til fremstilling deraf |
NLAANVRAGE7405900,A NL176176C (nl) | 1973-05-07 | 1974-05-02 | Werkwijze ter bereiding van polypiperazineamiden en daaruit vervaardigde anisotrope membranen. |
IL44761A IL44761A (en) | 1973-05-07 | 1974-05-03 | Poly-and copolypiperazinamides membranes for reverse osmosis made therefrom and their preparation |
DE2421353A DE2421353A1 (de) | 1973-05-07 | 1974-05-03 | Polypiperazinamide und ihre verwendung |
JP4929974A JPS575565B2 (it) | 1973-05-07 | 1974-05-04 | |
BE143969A BE814603A (fr) | 1973-05-07 | 1974-05-06 | Polypiperazinamides |
FR7415547A FR2228805B1 (it) | 1973-05-07 | 1974-05-06 | |
ES426000A ES426000A1 (es) | 1973-05-07 | 1974-05-06 | Procedimiento para la preparacion de membranas de gel ani- sotropico. |
GB1994674A GB1422767A (en) | 1973-05-07 | 1974-05-07 | Polypiperazinamides and reverse osmosis anisotropic membranes made therefrom |
CA199,175A CA1029496A (en) | 1973-05-07 | 1974-05-07 | Polymeric piperazinamides and membranes for reverse osmosis made therefrom |
US05/634,760 US4123424A (en) | 1973-05-07 | 1975-11-24 | Polymeric piperazinamides and membranes for reverse osmosis made therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 (1)
Publication Number | Publication Date |
---|---|
IT987156B true IT987156B (it) | 1975-02-20 |
Family
ID=11209824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS575565B2 (it) |
BE (1) | BE814603A (it) |
CA (1) | CA1029496A (it) |
DE (1) | DE2421353A1 (it) |
DK (1) | DK157978C (it) |
ES (1) | ES426000A1 (it) |
FR (1) | FR2228805B1 (it) |
GB (1) | GB1422767A (it) |
IL (1) | IL44761A (it) |
IT (1) | IT987156B (it) |
NL (1) | NL176176C (it) |
Families Citing this family (3)
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 (it) * | 1980-10-17 | 1987-12-10 | ||
US4433117A (en) * | 1982-03-23 | 1984-02-21 | Kuraray Co., Ltd. | Copolyesteramide and production of the same |
-
1973
- 1973-05-07 IT IT23770/73A patent/IT987156B/it active
-
1974
- 1974-05-02 NL NLAANVRAGE7405900,A patent/NL176176C/xx not_active IP Right Cessation
- 1974-05-02 DK DK240274A patent/DK157978C/da active
- 1974-05-03 DE DE2421353A patent/DE2421353A1/de not_active Withdrawn
- 1974-05-03 IL IL44761A patent/IL44761A/en unknown
- 1974-05-04 JP JP4929974A patent/JPS575565B2/ja not_active Expired
- 1974-05-06 FR FR7415547A patent/FR2228805B1/fr not_active Expired
- 1974-05-06 BE BE143969A patent/BE814603A/xx unknown
- 1974-05-06 ES ES426000A patent/ES426000A1/es not_active Expired
- 1974-05-07 GB GB1994674A patent/GB1422767A/en not_active Expired
- 1974-05-07 CA CA199,175A patent/CA1029496A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5081978A (it) | 1975-07-03 |
NL7405900A (it) | 1974-11-11 |
GB1422767A (en) | 1976-01-28 |
NL176176C (nl) | 1985-03-01 |
DE2421353A1 (de) | 1974-11-21 |
NL176176B (nl) | 1984-10-01 |
DK157978B (da) | 1990-03-12 |
FR2228805B1 (it) | 1976-12-17 |
JPS575565B2 (it) | 1982-01-30 |
IL44761A (en) | 1977-10-31 |
CA1029496A (en) | 1978-04-11 |
ES426000A1 (es) | 1976-11-01 |
BE814603A (fr) | 1974-11-06 |
FR2228805A1 (it) | 1974-12-06 |
IL44761A0 (en) | 1974-07-31 |
DK157978C (da) | 1990-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19920930 |