DE2147136C3 - Elektrolytischer Kondensator und Verfahren zu dessen Herstellung - Google Patents
Elektrolytischer Kondensator und Verfahren zu dessen HerstellungInfo
- Publication number
- DE2147136C3 DE2147136C3 DE2147136A DE2147136A DE2147136C3 DE 2147136 C3 DE2147136 C3 DE 2147136C3 DE 2147136 A DE2147136 A DE 2147136A DE 2147136 A DE2147136 A DE 2147136A DE 2147136 C3 DE2147136 C3 DE 2147136C3
- Authority
- DE
- Germany
- Prior art keywords
- tetracyanoquinodimethane
- complex
- tcnq
- polymer
- solvent
- 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
- 239000003990 capacitor Substances 0.000 title claims description 32
- 238000000034 method Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 229920000642 polymer Polymers 0.000 claims description 44
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 36
- 239000002904 solvent Substances 0.000 claims description 32
- PCCVSPMFGIFTHU-UHFFFAOYSA-N tetracyanoquinodimethane Chemical compound N#CC(C#N)=C1C=CC(=C(C#N)C#N)C=C1 PCCVSPMFGIFTHU-UHFFFAOYSA-N 0.000 claims description 19
- 239000013078 crystal Substances 0.000 claims description 16
- 239000007784 solid electrolyte Substances 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 15
- 239000010419 fine particle Substances 0.000 claims description 14
- 229920002292 Nylon 6 Polymers 0.000 claims description 12
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 11
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 11
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 11
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229920002301 cellulose acetate Polymers 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- ZMANZCXQSJIPKH-UHFFFAOYSA-O triethylammonium ion Chemical compound CC[NH+](CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-O 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000005062 Polybutadiene Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 4
- 229920002857 polybutadiene Polymers 0.000 claims description 4
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 4
- 239000011118 polyvinyl acetate Substances 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- BMTAFVWTTFSTOG-UHFFFAOYSA-N Butylate Chemical compound CCSC(=O)N(CC(C)C)CC(C)C BMTAFVWTTFSTOG-UHFFFAOYSA-N 0.000 claims description 3
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229920006218 cellulose propionate Polymers 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 claims description 2
- 238000001953 recrystallisation Methods 0.000 claims description 2
- -1 ethanol compound Chemical class 0.000 claims 2
- WBVSERCLMQZOBK-UHFFFAOYSA-N 1-methylphenazine Chemical compound C1=CC=C2N=C3C(C)=CC=CC3=NC2=C1 WBVSERCLMQZOBK-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 claims 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 27
- 229910052782 aluminium Inorganic materials 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 239000011888 foil Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 6
- 239000004926 polymethyl methacrylate Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical class [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Substances CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- LRQKBLKVPFOOQJ-YFKPBYRVSA-N L-norleucine Chemical compound CCCC[C@H]([NH3+])C([O-])=O LRQKBLKVPFOOQJ-YFKPBYRVSA-N 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000011532 electronic conductor Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
- H01G9/028—Organic semiconducting electrolytes, e.g. TCNQ
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/48—Conductive polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/56—Solid electrolytes, e.g. gels; Additives therein
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8314270 | 1970-09-21 | ||
| JP46059416A JPS5132303B2 (cg-RX-API-DMAC7.html) | 1971-08-05 | 1971-08-05 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2147136A1 DE2147136A1 (de) | 1972-03-23 |
| DE2147136B2 DE2147136B2 (de) | 1974-05-22 |
| DE2147136C3 true DE2147136C3 (de) | 1974-12-19 |
Family
ID=26400465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2147136A Expired DE2147136C3 (de) | 1970-09-21 | 1971-09-21 | Elektrolytischer Kondensator und Verfahren zu dessen Herstellung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3679944A (cg-RX-API-DMAC7.html) |
| CA (1) | CA921576A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2147136C3 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2108369A5 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1338128A (cg-RX-API-DMAC7.html) |
| NL (1) | NL7112969A (cg-RX-API-DMAC7.html) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4895548A (cg-RX-API-DMAC7.html) * | 1972-03-17 | 1973-12-07 | ||
| JPS5610777B2 (cg-RX-API-DMAC7.html) * | 1972-06-13 | 1981-03-10 | ||
| JPS5042368A (cg-RX-API-DMAC7.html) * | 1973-08-16 | 1975-04-17 | ||
| JPS5044460A (cg-RX-API-DMAC7.html) * | 1973-08-22 | 1975-04-21 | ||
| JPS5065859A (cg-RX-API-DMAC7.html) * | 1973-10-12 | 1975-06-03 | ||
| JPS5745050B2 (cg-RX-API-DMAC7.html) * | 1973-11-07 | 1982-09-25 | ||
| JPS5739042B2 (cg-RX-API-DMAC7.html) * | 1974-03-26 | 1982-08-19 | ||
| US4039905A (en) * | 1974-07-01 | 1977-08-02 | P. R. Mallory & Co., Inc. | Electrical device of the electrolytic type having means for confining mobile electrolyte and method of making same |
| US4401877A (en) * | 1980-04-25 | 1983-08-30 | Sprague Electric Company | Method for solid tantalum capacitor with clean riser |
| US4344107A (en) * | 1980-04-25 | 1982-08-10 | Sprague Electric Company | Solid tantalum capacitor with clean riser |
| US4529538A (en) * | 1983-08-09 | 1985-07-16 | The United States Of America As Represented By The Secretary Of The Navy | Electrically conductive polymer compositions |
| DE3570007D1 (en) * | 1984-02-10 | 1989-06-08 | Nippon Chemicon | An organic semiconductor electrolyte capacitor and process for producing the same |
| US4679124A (en) * | 1985-01-14 | 1987-07-07 | Matsushita Electric Industrial Co., Ltd. | Solid electrolytic capacitors |
| US4604788A (en) * | 1985-06-17 | 1986-08-12 | The Standard Oil Company | Method for making electrodes for double layer capacitors |
| US4934033A (en) * | 1987-01-23 | 1990-06-19 | Nitsuko Corporation | Method of manufacturing a solid electrolytic capacitor |
| JPH0722075B2 (ja) * | 1987-01-23 | 1995-03-08 | 日通工株式会社 | 固体電解コンデンサの半導体層形成方法 |
| US4805074A (en) * | 1987-03-20 | 1989-02-14 | Nitsuko Corporation | Solid electrolytic capacitor, and method of manufacturing same |
| JPH01205414A (ja) * | 1987-10-30 | 1989-08-17 | Asahi Glass Co Ltd | 固体電解コンデンサ |
| FR2625602B1 (fr) * | 1987-12-30 | 1994-07-01 | Europ Composants Electron | Procede de fabrication de condensateurs electrolytiques a l'aluminium et condensateur a anode integree obtenu par ce procede |
| FR2625601A1 (fr) * | 1987-12-30 | 1989-07-07 | Europ Composants Electron | Procede de fabrication de condensateurs electrolytiques a l'aluminium a electrolyte solide et condensateur a anode monobloc obtenu par ce procede |
| FR2625832A1 (fr) * | 1988-01-08 | 1989-07-13 | Europ Composants Electron | Procede de fabrication de condensateurs electrolytiques a l'aluminium et condensateur a anode fil obtenu par ce procede |
| FR2628257A1 (fr) * | 1988-03-01 | 1989-09-08 | Europ Composants Electron | Ruban metallique destine a la fabrication de condensateurs electrolytiques a electrolyte solide, procede de fabrication et condensateurs obtenus |
| EP0355205B1 (de) * | 1988-08-16 | 1994-01-19 | Koninklijke Philips Electronics N.V. | Elektrolytkondensator |
| JP3361928B2 (ja) * | 1996-02-15 | 2003-01-07 | 株式会社東芝 | 電荷移動錯体 |
| EP1398805B1 (en) * | 2001-05-31 | 2012-08-29 | Nippon Chemi-Con Corporation | Solid electrolytic capacitor |
| US7085127B2 (en) * | 2004-03-02 | 2006-08-01 | Vishay Sprague, Inc. | Surface mount chip capacitor |
| KR20100119818A (ko) * | 2008-03-25 | 2010-11-10 | 도쿄 유니버시티 오브 사이언스 에듀케이셔널 파운데이션 애드미니스트레이티브 오거니제이션 | 유전막 제조 방법 및 그 유전막 제조 방법을 이용한 캐패시터층 형성재의 제조 방법 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3214648A (en) * | 1961-06-19 | 1965-10-26 | Sprague Electric Co | Organic semiconductor solid capacitor |
| US3214650A (en) * | 1962-12-31 | 1965-10-26 | Sprague Electric Co | Solid electrolyte capacitor |
| US3483438A (en) * | 1968-02-02 | 1969-12-09 | Gen Electric | Capacitor having electrode coated with conductive solid polymer electrolyte |
-
1971
- 1971-09-17 GB GB4348671A patent/GB1338128A/en not_active Expired
- 1971-09-20 US US181971A patent/US3679944A/en not_active Expired - Lifetime
- 1971-09-20 CA CA123237A patent/CA921576A/en not_active Expired
- 1971-09-21 FR FR7133971A patent/FR2108369A5/fr not_active Expired
- 1971-09-21 DE DE2147136A patent/DE2147136C3/de not_active Expired
- 1971-09-21 NL NL7112969A patent/NL7112969A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2147136B2 (de) | 1974-05-22 |
| GB1338128A (en) | 1973-11-21 |
| FR2108369A5 (cg-RX-API-DMAC7.html) | 1972-05-19 |
| DE2147136A1 (de) | 1972-03-23 |
| NL7112969A (cg-RX-API-DMAC7.html) | 1972-03-23 |
| US3679944A (en) | 1972-07-25 |
| CA921576A (en) | 1973-02-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EF | Willingness to grant licences |