GB1227280A - - Google Patents
Info
- Publication number
- GB1227280A GB1227280A GB1227280DA GB1227280A GB 1227280 A GB1227280 A GB 1227280A GB 1227280D A GB1227280D A GB 1227280DA GB 1227280 A GB1227280 A GB 1227280A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solvent
- membranes
- oct
- units
- film
- 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
- 239000004952 Polyamide Substances 0.000 abstract 4
- 239000012528 membrane Substances 0.000 abstract 4
- 229920002647 polyamide Polymers 0.000 abstract 4
- 239000002904 solvent Substances 0.000 abstract 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 2
- MPCRDALPQLDDFX-UHFFFAOYSA-L Magnesium perchlorate Chemical compound [Mg+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O MPCRDALPQLDDFX-UHFFFAOYSA-L 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 125000005037 alkyl phenyl group Chemical group 0.000 abstract 1
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 1
- 238000010612 desalination reaction Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 125000000623 heterocyclic group Chemical group 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 230000001012 protector Effects 0.000 abstract 1
- 238000001223 reverse osmosis Methods 0.000 abstract 1
- 239000013535 sea water Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR168446 | 1968-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1227280A true GB1227280A (https=) | 1971-04-07 |
Family
ID=8655196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1227280D Expired GB1227280A (https=) | 1968-10-02 | 1969-10-01 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3686116A (https=) |
| BE (1) | BE739700A (https=) |
| BR (1) | BR6912815D0 (https=) |
| CH (1) | CH511916A (https=) |
| DE (1) | DE1949847A1 (https=) |
| ES (1) | ES372085A1 (https=) |
| FR (1) | FR1587787A (https=) |
| GB (1) | GB1227280A (https=) |
| IL (1) | IL33093A (https=) |
| LU (1) | LU59552A1 (https=) |
| NL (1) | NL6914496A (https=) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2193634A1 (en) * | 1972-07-20 | 1974-02-22 | Du Pont | Polyimide semi-permeable membranes |
| US3822202A (en) * | 1972-07-20 | 1974-07-02 | Du Pont | Heat treatment of membranes of selected polyimides,polyesters and polyamides |
| US3993625A (en) * | 1973-05-28 | 1976-11-23 | Toray Industries, Inc. | Permselective polymeric membranes of organic polyamide or polyhydrazide |
| US3951789A (en) * | 1973-10-11 | 1976-04-20 | Allied Chemical Corporation | Novel high diffusivity membranes |
| DE2418996A1 (de) * | 1974-04-19 | 1975-10-30 | Bayer Ag | Asymmetrische, semipermeable membranen aus polybenz-1,3-oxazindionen-2,4 |
| DE2602493A1 (de) * | 1975-01-27 | 1976-07-29 | Ramot Plastics | Verfahren zur entfernung von harnstoff aus waessrigen loesungen |
| JPS5193786A (en) * | 1975-02-15 | 1976-08-17 | Makurokagatano chukuseni | |
| GB1586167A (en) * | 1976-09-24 | 1981-03-18 | Bfg Glassgroup | Moulding solid layers |
| DE2704600C3 (de) * | 1977-02-04 | 1988-05-26 | Hoechst Ag, 6230 Frankfurt | Permselektive, asymmetrische Hämofiltrationsmembran mit heteroporöser Struktur auf Basis von Polyamid |
| JPS5443882A (en) * | 1977-09-14 | 1979-04-06 | Nippon Zeon Co Ltd | Preparation of semipermeable membrane |
| US5164475A (en) * | 1989-01-31 | 1992-11-17 | Du Pont Merck Pharmaceutical Company | Porous substrates with a high concentration of amine groups |
| US5352273A (en) * | 1993-04-14 | 1994-10-04 | E. I. Du Pont De Nemours And Company | Alkyl substituted aromatic polyester gas separation membranes |
| EA026762B1 (ru) * | 2009-08-24 | 2017-05-31 | Оасис Уотер, Инк. | Прямоосмотическая мембрана |
| WO2011069050A1 (en) | 2009-12-03 | 2011-06-09 | Yale University | High flux thin-film composite forward osmosis and pressure-retarded osmosis membranes |
| KR20130101533A (ko) | 2010-10-04 | 2013-09-13 | 오아시스 워터, 인크. | 박막 필름 복합 열 교환기 |
| EP2632577B1 (en) | 2011-01-24 | 2014-10-01 | Dow Global Technologies LLC | Method for making a composite polyamide membrane |
| JP6054968B2 (ja) | 2011-08-31 | 2016-12-27 | ダウ グローバル テクノロジーズ エルエルシー | アミン−反応性およびリン−含有官能基を含むモノマーから誘導された複合ポリアミド膜 |
| WO2013048764A1 (en) | 2011-09-29 | 2013-04-04 | Dow Global Technologies Llc | Method for preparing high purity mono-hydrolyzed acyl halide compound |
| ES2806675T3 (es) | 2012-01-06 | 2021-02-18 | Ddp Specialty Electronic Mat Us Inc | Método de preparación de una membrana de poliamida de material compuesto |
| EP2858740B8 (en) | 2012-07-19 | 2020-04-29 | DDP Specialty Electronic Materials US, Inc. | Method for making membrane composite polyamide membrane with combination of different polyfunctional amine-reactive monomers |
| WO2014109947A1 (en) | 2013-01-14 | 2014-07-17 | Dow Global Technologies Llc | Composite polyamide membrane comprising substituted benzamide monomer |
| WO2014109946A1 (en) | 2013-01-14 | 2014-07-17 | Dow Global Technologies Llc | Composite polyamide membrane |
| US9051227B2 (en) | 2013-03-16 | 2015-06-09 | Dow Global Technologies Llc | In-situ method for preparing hydrolyzed acyl halide compound |
| US9051417B2 (en) | 2013-03-16 | 2015-06-09 | Dow Global Technologies Llc | Method for solubilizing carboxylic acid-containing compound in hydrocarbon solvent |
| US9289729B2 (en) | 2013-03-16 | 2016-03-22 | Dow Global Technologies Llc | Composite polyamide membrane derived from carboxylic acid containing acyl halide monomer |
| WO2014179024A1 (en) | 2013-05-03 | 2014-11-06 | Dow Global Technologies Llc | Composite polyamide membrane derived from an aliphatic acyclic tertiary amine compound |
| CN106170333B (zh) | 2013-12-02 | 2019-02-15 | 陶氏环球技术有限责任公司 | 用二羟基芳基化合物和亚硝酸处理的复合聚酰胺膜 |
| JP6577468B2 (ja) | 2013-12-02 | 2019-09-18 | ダウ グローバル テクノロジーズ エルエルシー | 亜硝酸で後処理される複合ポリアミド膜 |
| JP6535010B2 (ja) | 2014-01-09 | 2019-06-26 | ダウ グローバル テクノロジーズ エルエルシー | 好ましいアゾ含有量を有する複合ポリアミド皮膜 |
| CA2935699C (en) | 2014-01-09 | 2022-05-31 | Dow Global Technologies Llc | Composite polyamide membrane having azo content and high acid content |
| KR102289354B1 (ko) | 2014-01-09 | 2021-08-12 | 다우 글로벌 테크놀로지스 엘엘씨 | 높은 산 함량 및 낮은 아조 함량을 갖는 복합 폴리아미드 막 |
| KR102343738B1 (ko) | 2014-04-28 | 2021-12-27 | 다우 글로벌 테크놀로지스 엘엘씨 | 아질산으로 후처리된 복합체 폴리아미드막 |
| KR102359211B1 (ko) | 2014-05-14 | 2022-02-07 | 다우 글로벌 테크놀로지스 엘엘씨 | 아질산으로 후처리된 복합 폴리아미드 막 |
-
1968
- 1968-10-02 FR FR168446A patent/FR1587787A/fr not_active Expired
-
1969
- 1969-09-02 BR BR212815/69A patent/BR6912815D0/pt unknown
- 1969-09-24 NL NL6914496A patent/NL6914496A/xx unknown
- 1969-09-29 IL IL33093A patent/IL33093A/en unknown
- 1969-09-30 US US862522A patent/US3686116A/en not_active Expired - Lifetime
- 1969-10-01 GB GB1227280D patent/GB1227280A/en not_active Expired
- 1969-10-01 CH CH1478169A patent/CH511916A/fr not_active IP Right Cessation
- 1969-10-01 BE BE739700D patent/BE739700A/xx unknown
- 1969-10-01 LU LU59552D patent/LU59552A1/xx unknown
- 1969-10-02 ES ES372085A patent/ES372085A1/es not_active Expired
- 1969-10-02 DE DE19691949847 patent/DE1949847A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR1587787A (https=) | 1970-03-27 |
| LU59552A1 (https=) | 1970-04-01 |
| BR6912815D0 (pt) | 1973-01-09 |
| IL33093A0 (en) | 1969-11-30 |
| NL6914496A (https=) | 1970-04-06 |
| BE739700A (https=) | 1970-04-01 |
| ES372085A1 (es) | 1971-09-01 |
| US3686116A (en) | 1972-08-22 |
| DE1949847A1 (de) | 1970-04-09 |
| CH511916A (fr) | 1971-08-31 |
| IL33093A (en) | 1972-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1227280A (https=) | ||
| GB1507921A (en) | Membranes | |
| ES417934A1 (es) | Procedimiento para purificar y concentrar una solucion acuo-sa de polisacarido derivada de algas marinas. | |
| ES266929Y (es) | "una membrana de ultrafiltracion". | |
| AT339604B (de) | Verfahren zur herstellung von copolyamiden enthaltend caprolactam, laurinlactam und adipinsaures hexamethylendiamin | |
| ES462585A1 (es) | Procedimiento para la obtencion de membranas semipermeables. | |
| ES8107038A1 (es) | Un metodo mejorado para preparar una membrana anisotropa | |
| ES372255A1 (es) | Procedimiento para la preparacion de membranas semi-permea-bles. | |
| ATE31248T1 (de) | Membran und verfahren zu ihrer herstellung. | |
| GB1441014A (en) | Reverse osmosis membrane | |
| IT1055704B (it) | Membrane polimeriche permselettive di poliammidi o poliidrrazidi or ganiche | |
| FR2333547A1 (fr) | Membranes semi-permeables en copolyamides et leur utilisation pour l'ultra-filtration ou l'osmose inverse | |
| BE746629A (fr) | Procede pour la formation de membranes semi-permeables pour dessalementd'eaux saumatres et marines, par hyperfiltration, et membranes produites par le susdit procede | |
| FR2333548A1 (fr) | Nouvelles membranes semi-permeables en copolyamides, et leur utilisation pour l'osmose inverse | |
| DE69208015D1 (de) | Neue Zusammensetzungen von Meeresalgenderivaten, Verfahren zu ihrer Herstellung und Verwendungen in der Landwirtschaft | |
| US3527853A (en) | Process for manufacturing semipermeable cellulose acetate membranes suitable for desalination | |
| GB1279719A (en) | Process for the preparation of a semipermeable membrane | |
| JPS536627A (en) | Hollow fibers | |
| JP3241855B2 (ja) | 無機塩で目詰めされた多孔膜 | |
| AT321886B (de) | Verfahren zur herstellung des neuen n-2,4-dimethylphenyl-n'-methylformamidins und seiner säureadditionssalze | |
| GB1290775A (https=) | ||
| AT303909B (de) | Verfahren zur Herstellung von neuen, in Wasser schwerlöslichen Styryfarbstoffen | |
| ATA1015273A (de) | Verfahren zur herstellung von neuen (1,4) ditihiino (2,3-c) pyrrolderivaten und von deren saureadditionssalzen | |
| JPS55137005A (en) | Selectively permeable composite membrane and preparing the same | |
| AT304462B (de) | Verfahren zur Herstellung des neuen N,N'-Bis-trifluormethyl-tetrafluoräthylendiamis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |