DD150082A5 - Verfahren zur herstellung einer hochaktiven silberkathode und deren verwendung zur herstellung von 2,3,5-trichlorpyridin - Google Patents
Verfahren zur herstellung einer hochaktiven silberkathode und deren verwendung zur herstellung von 2,3,5-trichlorpyridin Download PDFInfo
- Publication number
- DD150082A5 DD150082A5 DD80220388A DD22038880A DD150082A5 DD 150082 A5 DD150082 A5 DD 150082A5 DD 80220388 A DD80220388 A DD 80220388A DD 22038880 A DD22038880 A DD 22038880A DD 150082 A5 DD150082 A5 DD 150082A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- silver
- conductor
- microcrystals
- items
- electrode
- Prior art date
Links
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 31
- 239000004332 silver Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 17
- CNLIIAKAAMFCJG-UHFFFAOYSA-N 2,3,5-trichloropyridine Chemical compound ClC1=CN=C(Cl)C(Cl)=C1 CNLIIAKAAMFCJG-UHFFFAOYSA-N 0.000 title abstract description 4
- 238000004519 manufacturing process Methods 0.000 title description 3
- 230000009467 reduction Effects 0.000 claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 17
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000013081 microcrystal Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 9
- 229910001923 silver oxide Inorganic materials 0.000 claims abstract description 8
- -1 Hydroxyl ions Chemical class 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 4
- DNDPLEAVNVOOQZ-UHFFFAOYSA-N 2,3,4,5,6-pentachloropyridine Chemical compound ClC1=NC(Cl)=C(Cl)C(Cl)=C1Cl DNDPLEAVNVOOQZ-UHFFFAOYSA-N 0.000 claims description 8
- 101000588924 Anthopleura elegantissima Delta-actitoxin-Ael1a Proteins 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- RECVMTHOQWMYFX-UHFFFAOYSA-N oxygen(1+) dihydride Chemical compound [OH2+] RECVMTHOQWMYFX-UHFFFAOYSA-N 0.000 claims description 2
- 150000003378 silver Chemical class 0.000 claims description 2
- DLOOKZXVYJHDIY-UHFFFAOYSA-N 2,3,4,5-tetrachloropyridine Chemical compound ClC1=CN=C(Cl)C(Cl)=C1Cl DLOOKZXVYJHDIY-UHFFFAOYSA-N 0.000 claims 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 230000010287 polarization Effects 0.000 claims 1
- 229910001961 silver nitrate Inorganic materials 0.000 claims 1
- FATBKZJZAHWCSL-UHFFFAOYSA-N 2,3,5,6-tetrachloropyridine Chemical compound ClC1=CC(Cl)=C(Cl)N=C1Cl FATBKZJZAHWCSL-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- VMHZXXPDUOVTHD-UHFFFAOYSA-N 2,3,4-trichloropyridine Chemical compound ClC1=CC=NC(Cl)=C1Cl VMHZXXPDUOVTHD-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- MAKFMOSBBNKPMS-UHFFFAOYSA-N 2,3-dichloropyridine Chemical compound ClC1=CC=CN=C1Cl MAKFMOSBBNKPMS-UHFFFAOYSA-N 0.000 description 1
- VAJVDSVGBWFCLW-UHFFFAOYSA-N 3-Phenylpropanol Natural products OCCCC1=CC=CC=C1 VAJVDSVGBWFCLW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000008043 acidic salts Chemical class 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000005753 chloropyridines Chemical class 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
- C25B11/093—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds at least one noble metal or noble metal oxide and at least one non-noble metal oxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/61—Halogen atoms or nitro radicals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
- C25B11/081—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound the element being a noble metal
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/20—Processes
- C25B3/25—Reduction
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Metals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/029,600 US4242183A (en) | 1979-04-13 | 1979-04-13 | Highly active silver cathode, preparation of same and use to make 2,3,5-trichloropyridine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD150082A5 true DD150082A5 (de) | 1981-08-12 |
Family
ID=21849889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD80220388A DD150082A5 (de) | 1979-04-13 | 1980-04-11 | Verfahren zur herstellung einer hochaktiven silberkathode und deren verwendung zur herstellung von 2,3,5-trichlorpyridin |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US4242183A (forum.php) |
| EP (1) | EP0018069B1 (forum.php) |
| JP (1) | JPS55141585A (forum.php) |
| KR (1) | KR840001661B1 (forum.php) |
| AR (1) | AR223704A1 (forum.php) |
| AU (1) | AU527014B2 (forum.php) |
| BR (1) | BR8002257A (forum.php) |
| CA (1) | CA1149767A (forum.php) |
| CS (1) | CS221544B2 (forum.php) |
| DD (1) | DD150082A5 (forum.php) |
| DE (1) | DE3064869D1 (forum.php) |
| DK (1) | DK156480A (forum.php) |
| ES (1) | ES8103783A1 (forum.php) |
| GB (1) | GB2051863B (forum.php) |
| HU (1) | HU182122B (forum.php) |
| IL (1) | IL59482A (forum.php) |
| IN (1) | IN153664B (forum.php) |
| MY (1) | MY8500087A (forum.php) |
| NZ (1) | NZ192994A (forum.php) |
| SU (1) | SU925254A3 (forum.php) |
| ZA (1) | ZA801261B (forum.php) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367133A (en) * | 1980-07-02 | 1983-01-04 | Comsip, Inc. | Electrochemical gas analyzer |
| EP0209611A1 (en) * | 1985-07-18 | 1987-01-28 | The Dow Chemical Company | Electrolytic cell comprising stainless steel anode and a process for preparing polychloropicolinate anions |
| US4592811A (en) * | 1981-09-28 | 1986-06-03 | The Dow Chemical Company | Electrolytic cell comprising stainless steel anode, basic aqueous electrolyte and a cathode at which tetrachloro-2-picolinate ions can be selectively reduced in high yield to 3,6-dichloropicolinate ions _ |
| US4460441A (en) * | 1982-08-31 | 1984-07-17 | The Dow Chemical Company | Expanded metal as more efficient form of silver cathode for electrolytic reduction of polychloropicolinate anions |
| US4482436A (en) * | 1983-08-10 | 1984-11-13 | The Dow Chemical Company | Use of H2 SO4 H3 PO4 to remove electrolytic deposits from silver cathode surfaces |
| US4755266A (en) * | 1986-07-11 | 1988-07-05 | The Dow Chemical Company | Process for silver cathode activation |
| US4778576A (en) * | 1986-07-31 | 1988-10-18 | The Dow Chemical Company | Nickel alloy anodes for electrochemical dechlorination |
| DE60100620T2 (de) | 2000-01-14 | 2004-03-11 | Dow Agrosciences Llc, Indianapolis | Gezielte elektrochemische reduktion von halogenierten 4-amino-picolinsäuren |
| US7666293B2 (en) * | 2007-10-04 | 2010-02-23 | Dow Agrosciences Llc | Electrochemical reduction of halogenated 4-aminopicolinic acids |
| CN101603179B (zh) * | 2009-06-29 | 2013-11-06 | 浙江工业大学 | 3,5,6-三氯吡啶甲酸的电解合成方法 |
| JP5818803B2 (ja) * | 2009-10-27 | 2015-11-18 | ダウ アグロサイエンシィズ エルエルシー | 銀陰極活性化の改良 |
| HRP20170693T1 (hr) * | 2009-11-04 | 2017-07-28 | Ffgf Limited | Proizvodnja ugljikovodika |
| CN105887128B (zh) * | 2016-05-16 | 2018-01-12 | 浙江工业大学 | 一种五氯吡啶电催化选择性氢化脱氯的方法 |
| CN108611656B (zh) * | 2016-12-12 | 2019-07-30 | 利尔化学股份有限公司 | 一种4-氨基-3,6-二氯吡啶-2-甲酸的合成方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1069586B (de) * | 1953-09-14 | 1959-11-26 | Union Carbide Corporation New York N Y (V St A) | Verfahren zur Elektrolyse wäßriger Salzlosungen unter Verwendung einer kohlenstoffhaltigen Anode |
| US3130136A (en) * | 1961-05-10 | 1964-04-21 | Hercules Powder Co Ltd | Electrolytic method for the preparation of gem-dinitrocompounds |
| US3449162A (en) * | 1965-09-17 | 1969-06-10 | Analytic Systems Co | Method of making oxygen measuring cells |
| DE1546728C3 (de) * | 1965-09-18 | 1975-07-17 | Varta Batterie Ag, 3000 Hannover | Verfahren zur Herstellung eines silberhaltigen pulverförmiger! Katalysators für Sauerstoffelektroden |
| DE1567689A1 (de) * | 1965-10-09 | 1970-06-11 | Barthel Dipl Chem Guenter | Elektrode fuer die elektrolytische Zerlegung von Salzsaeure und Verfahren zu ihrer Herstellung |
| US3657003A (en) * | 1970-02-02 | 1972-04-18 | Western Electric Co | Method of rendering a non-wettable surface wettable |
| US3687826A (en) * | 1971-01-25 | 1972-08-29 | Dow Chemical Co | Electrolytic reduction of polyhaloquinoline and polyhaloisoquinoline |
| US3694332A (en) * | 1971-03-05 | 1972-09-26 | Dow Chemical Co | Electrolytic reduction of halogenated pyridines |
| CH576529A5 (forum.php) * | 1974-10-09 | 1976-06-15 | Bbc Brown Boveri & Cie | |
| DE2508853C3 (de) * | 1975-02-28 | 1980-06-26 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur Herstellung dunner Silberkathoden für elektrochemische Zellen |
| GB1532038A (en) * | 1976-10-26 | 1978-11-15 | Ici Ltd | Process for the preparation of 2,3,5-trichloropyridine |
| US4111938A (en) * | 1977-09-14 | 1978-09-05 | The Dow Chemical Company | Preparation of 2,3,5-trichloropyridine |
-
1979
- 1979-04-13 US US06/029,600 patent/US4242183A/en not_active Expired - Lifetime
-
1980
- 1980-02-18 CA CA000345839A patent/CA1149767A/en not_active Expired
- 1980-02-26 IL IL59482A patent/IL59482A/xx not_active IP Right Cessation
- 1980-02-26 AU AU55902/80A patent/AU527014B2/en not_active Ceased
- 1980-02-27 NZ NZ192994A patent/NZ192994A/xx unknown
- 1980-02-29 EP EP80300620A patent/EP0018069B1/en not_active Expired
- 1980-02-29 GB GB8006961A patent/GB2051863B/en not_active Expired
- 1980-02-29 DE DE8080300620T patent/DE3064869D1/de not_active Expired
- 1980-03-04 ZA ZA00801261A patent/ZA801261B/xx unknown
- 1980-03-27 ES ES489966A patent/ES8103783A1/es not_active Expired
- 1980-03-31 AR AR280505A patent/AR223704A1/es active
- 1980-04-10 CS CS802487A patent/CS221544B2/cs unknown
- 1980-04-11 HU HU80885A patent/HU182122B/hu not_active IP Right Cessation
- 1980-04-11 DD DD80220388A patent/DD150082A5/de unknown
- 1980-04-11 BR BR8002257A patent/BR8002257A/pt not_active IP Right Cessation
- 1980-04-11 DK DK156480A patent/DK156480A/da not_active IP Right Cessation
- 1980-04-11 JP JP4793880A patent/JPS55141585A/ja active Granted
- 1980-04-11 SU SU802909297A patent/SU925254A3/ru active
- 1980-04-11 IN IN421/CAL/80A patent/IN153664B/en unknown
- 1980-04-12 KR KR1019800001525A patent/KR840001661B1/ko not_active Expired
-
1985
- 1985-12-30 MY MY87/85A patent/MY8500087A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL59482A0 (en) | 1980-05-30 |
| CA1149767A (en) | 1983-07-12 |
| ES489966A0 (es) | 1981-03-16 |
| CS221544B2 (en) | 1983-04-29 |
| JPH0149793B2 (forum.php) | 1989-10-26 |
| GB2051863B (en) | 1983-06-29 |
| IL59482A (en) | 1984-02-29 |
| US4242183A (en) | 1980-12-30 |
| JPS55141585A (en) | 1980-11-05 |
| HU182122B (en) | 1983-12-28 |
| KR840001661B1 (ko) | 1984-10-12 |
| SU925254A3 (ru) | 1982-04-30 |
| BR8002257A (pt) | 1980-12-02 |
| AR223704A1 (es) | 1981-09-15 |
| DK156480A (da) | 1980-10-14 |
| ZA801261B (en) | 1981-07-29 |
| MY8500087A (en) | 1985-12-31 |
| EP0018069B1 (en) | 1983-09-21 |
| DE3064869D1 (en) | 1983-10-27 |
| KR830002911A (ko) | 1983-05-31 |
| GB2051863A (en) | 1981-01-21 |
| AU527014B2 (en) | 1983-02-10 |
| AU5590280A (en) | 1980-10-16 |
| NZ192994A (en) | 1983-05-10 |
| ES8103783A1 (es) | 1981-03-16 |
| EP0018069A1 (en) | 1980-10-29 |
| IN153664B (forum.php) | 1984-08-04 |
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