DD120357A5 - - Google Patents
Info
- Publication number
- DD120357A5 DD120357A5 DD186910A DD18691075A DD120357A5 DD 120357 A5 DD120357 A5 DD 120357A5 DD 186910 A DD186910 A DD 186910A DD 18691075 A DD18691075 A DD 18691075A DD 120357 A5 DD120357 A5 DD 120357A5
- Authority
- DD
- German Democratic Republic
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
-
- 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
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
- B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
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)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2431071A DE2431071C2 (de) | 1974-06-28 | 1974-06-28 | Asymmetrische, semipermeable Membranen aus cyclischen Polyharnstoffen und deren Verwendung zur Meerwasserentsalzung oder zur Trennung und Konzentrierung von Stoffgemischen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD120357A5 true DD120357A5 (https=) | 1976-06-12 |
Family
ID=5919181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD186910A DD120357A5 (https=) | 1974-06-28 | 1975-06-26 |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4045337A (https=) |
| JP (1) | JPS584561B2 (https=) |
| AT (1) | AT343601B (https=) |
| BE (1) | BE830659A (https=) |
| BR (1) | BR7504058A (https=) |
| CA (1) | CA1052707A (https=) |
| CH (1) | CH618452A5 (https=) |
| DD (1) | DD120357A5 (https=) |
| DE (1) | DE2431071C2 (https=) |
| DK (1) | DK145872C (https=) |
| FI (1) | FI751893A7 (https=) |
| FR (1) | FR2276343A1 (https=) |
| GB (1) | GB1488300A (https=) |
| IL (1) | IL47563A (https=) |
| IT (1) | IT1040711B (https=) |
| NL (1) | NL7507570A (https=) |
| NO (1) | NO141458C (https=) |
| SE (2) | SE403570B (https=) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4272467A (en) * | 1975-12-22 | 1981-06-09 | Exxon Research & Engineering Co. | Method for producing an essentially gas and liquid impermeable low density, closed-cell, microcellular polyparabanic acid article |
| US4105616A (en) * | 1977-10-26 | 1978-08-08 | Exxon Research & Engineering Co. | Heterocyclic polymer solutions and products therefrom |
| JPS54107882A (en) * | 1978-02-13 | 1979-08-24 | Toray Ind Inc | Semipermeable membrane |
| DE3167434D1 (en) * | 1980-07-02 | 1985-01-10 | Bayer Ag | Semipermeable membranes |
| EP0312376A3 (en) * | 1987-10-14 | 1990-01-31 | Exxon Research And Engineering Company | Polyurea membrane and its use for aromatics/non-aromatics separations |
| DK0539870T3 (da) * | 1991-10-26 | 1996-12-09 | Hoechst Ag | Hydrofile, asymmetriske, kemikaliebestandige polyaramidmembraner |
| DE4338196A1 (de) * | 1993-11-09 | 1995-05-11 | Bayer Ag | Verfahren zum Reinigen organischer Syntheseprodukte |
| AUPP521298A0 (en) * | 1998-08-12 | 1998-09-03 | Life Therapeutics Limited | Purification of fibrinogen |
| AUPP790898A0 (en) | 1998-12-23 | 1999-01-28 | Life Therapeutics Limited | Renal dialysis |
| AUPP790698A0 (en) | 1998-12-23 | 1999-01-28 | Life Therapeutics Limited | Separation of microorganisms |
| US20050224355A1 (en) * | 1999-12-23 | 2005-10-13 | Brendon Conlan | Removal of biological contaminants |
| US7077942B1 (en) * | 1999-12-23 | 2006-07-18 | Gradipore Limited | Removal of biological contaminants |
| AUPQ691400A0 (en) | 2000-04-14 | 2000-05-11 | Life Therapeutics Limited | Separation of micromolecules |
| WO2001078877A1 (en) | 2000-04-18 | 2001-10-25 | Gradipore Limited | Electrophoresis separation and treatment of samples |
| AUPQ697300A0 (en) | 2000-04-18 | 2000-05-11 | Life Therapeutics Limited | Separation apparatus |
| US6923896B2 (en) * | 2000-09-22 | 2005-08-02 | The Texas A&M University System | Electrophoresis apparatus and method |
| JP2004510170A (ja) * | 2000-10-06 | 2004-04-02 | グラディポア リミテッド | マルチポート型分離装置および方法 |
| AUPR222300A0 (en) * | 2000-12-21 | 2001-01-25 | Life Therapeutics Limited | Electrophoresis device and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE123476C (https=) * | 1960-09-19 | |||
| US3423491A (en) * | 1964-09-02 | 1969-01-21 | Dow Chemical Co | Permselective hollow fibers and method of making |
| US3503939A (en) * | 1967-03-29 | 1970-03-31 | Du Pont | Polyamides from heterocyclic diamines |
| US3526588A (en) * | 1967-09-21 | 1970-09-01 | Amicon Corp | Macromolecular fractionation process |
| US3630999A (en) * | 1969-11-12 | 1971-12-28 | Pennwalt Corp | Tetrasubstituted urea monomers and polymers |
| US3752784A (en) * | 1970-12-23 | 1973-08-14 | Du Pont | Process for preparing microporous opencelled cellular polymeric structures |
| US3901810A (en) * | 1972-09-21 | 1975-08-26 | Calgon Corp | Ultrafiltration membranes |
-
1974
- 1974-06-28 DE DE2431071A patent/DE2431071C2/de not_active Expired
-
1975
- 1975-05-22 GB GB22178/75A patent/GB1488300A/en not_active Expired
- 1975-06-13 NO NO752114A patent/NO141458C/no unknown
- 1975-06-24 US US05/589,950 patent/US4045337A/en not_active Expired - Lifetime
- 1975-06-24 JP JP50077055A patent/JPS584561B2/ja not_active Expired
- 1975-06-25 IT IT50214/75A patent/IT1040711B/it active
- 1975-06-25 NL NL7507570A patent/NL7507570A/xx not_active Application Discontinuation
- 1975-06-25 IL IL47563A patent/IL47563A/en unknown
- 1975-06-26 SE SE7507346A patent/SE403570B/xx not_active IP Right Cessation
- 1975-06-26 FI FI751893A patent/FI751893A7/fi not_active Application Discontinuation
- 1975-06-26 AT AT491375A patent/AT343601B/de not_active IP Right Cessation
- 1975-06-26 BE BE157694A patent/BE830659A/xx not_active IP Right Cessation
- 1975-06-26 CH CH832375A patent/CH618452A5/de not_active IP Right Cessation
- 1975-06-26 CA CA230,238A patent/CA1052707A/en not_active Expired
- 1975-06-26 DD DD186910A patent/DD120357A5/xx unknown
- 1975-06-27 DK DK293775A patent/DK145872C/da not_active IP Right Cessation
- 1975-06-27 BR BR5209/75D patent/BR7504058A/pt unknown
- 1975-06-27 FR FR7520366A patent/FR2276343A1/fr active Granted
-
1978
- 1978-01-17 SE SE7800543A patent/SE422004B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US4045337A (en) | 1977-08-30 |
| CH618452A5 (https=) | 1980-07-31 |
| SE422004B (sv) | 1982-02-15 |
| IT1040711B (it) | 1979-12-20 |
| ATA491375A (de) | 1977-10-15 |
| JPS5127880A (en) | 1976-03-09 |
| CA1052707A (en) | 1979-04-17 |
| IL47563A0 (en) | 1975-08-31 |
| NO141458B (no) | 1979-12-10 |
| GB1488300A (en) | 1977-10-12 |
| NO141458C (no) | 1980-03-19 |
| AU8242975A (en) | 1977-01-06 |
| SE7800543L (sv) | 1978-01-17 |
| IL47563A (en) | 1977-07-31 |
| FI751893A7 (https=) | 1975-12-29 |
| DE2431071C2 (de) | 1982-03-04 |
| DK145872B (da) | 1983-03-28 |
| AT343601B (de) | 1978-06-12 |
| JPS584561B2 (ja) | 1983-01-27 |
| BE830659A (fr) | 1975-12-29 |
| DE2431071A1 (de) | 1976-01-15 |
| NL7507570A (nl) | 1975-12-30 |
| DK145872C (da) | 1983-09-12 |
| DK293775A (da) | 1975-12-29 |
| FR2276343B1 (https=) | 1978-10-27 |
| SE403570B (sv) | 1978-08-28 |
| NO752114L (https=) | 1975-12-30 |
| BR7504058A (pt) | 1976-06-29 |
| SE7507346L (sv) | 1975-12-29 |
| FR2276343A1 (fr) | 1976-01-23 |