GB1422767A - Polypiperazinamides and reverse osmosis anisotropic membranes made therefrom - Google Patents
Polypiperazinamides and reverse osmosis anisotropic membranes made therefromInfo
- Publication number
- GB1422767A GB1422767A GB1994674A GB1994674A GB1422767A GB 1422767 A GB1422767 A GB 1422767A GB 1994674 A GB1994674 A GB 1994674A GB 1994674 A GB1994674 A GB 1994674A GB 1422767 A GB1422767 A GB 1422767A
- Authority
- GB
- United Kingdom
- Prior art keywords
- units
- water
- solvent
- solution
- casting
- 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
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)
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 |
---|---|
GB1422767A true GB1422767A (en) | 1976-01-28 |
Family
ID=11209824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1994674A Expired GB1422767A (en) | 1973-05-07 | 1974-05-07 | Polypiperazinamides and reverse osmosis anisotropic membranes made therefrom |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS575565B2 (xx) |
BE (1) | BE814603A (xx) |
CA (1) | CA1029496A (xx) |
DE (1) | DE2421353A1 (xx) |
DK (1) | DK157978C (xx) |
ES (1) | ES426000A1 (xx) |
FR (1) | FR2228805B1 (xx) |
GB (1) | GB1422767A (xx) |
IL (1) | IL44761A (xx) |
IT (1) | IT987156B (xx) |
NL (1) | NL176176C (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089846A1 (en) * | 1982-03-23 | 1983-09-28 | Kuraray Co., Ltd. | Copolyesteramide and its production |
Families Citing this family (2)
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 (xx) * | 1980-10-17 | 1987-12-10 |
-
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 IL IL44761A patent/IL44761A/en unknown
- 1974-05-03 DE DE2421353A patent/DE2421353A1/de not_active Withdrawn
- 1974-05-04 JP JP4929974A patent/JPS575565B2/ja not_active Expired
- 1974-05-06 ES ES426000A patent/ES426000A1/es not_active Expired
- 1974-05-06 BE BE143969A patent/BE814603A/xx unknown
- 1974-05-06 FR FR7415547A patent/FR2228805B1/fr not_active Expired
- 1974-05-07 CA CA199,175A patent/CA1029496A/en not_active Expired
- 1974-05-07 GB GB1994674A patent/GB1422767A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089846A1 (en) * | 1982-03-23 | 1983-09-28 | Kuraray Co., Ltd. | Copolyesteramide and its production |
Also Published As
Publication number | Publication date |
---|---|
NL176176B (nl) | 1984-10-01 |
JPS575565B2 (xx) | 1982-01-30 |
IL44761A0 (en) | 1974-07-31 |
FR2228805B1 (xx) | 1976-12-17 |
ES426000A1 (es) | 1976-11-01 |
FR2228805A1 (xx) | 1974-12-06 |
DK157978B (da) | 1990-03-12 |
JPS5081978A (xx) | 1975-07-03 |
CA1029496A (en) | 1978-04-11 |
BE814603A (fr) | 1974-11-06 |
IT987156B (it) | 1975-02-20 |
NL176176C (nl) | 1985-03-01 |
IL44761A (en) | 1977-10-31 |
DK157978C (da) | 1990-08-27 |
NL7405900A (xx) | 1974-11-11 |
DE2421353A1 (de) | 1974-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940506 |