DD293741A5 - Monolith- bzw. wabenfoermiger katalysator - Google Patents
Monolith- bzw. wabenfoermiger katalysator Download PDFInfo
- Publication number
- DD293741A5 DD293741A5 DD90339853A DD33985390A DD293741A5 DD 293741 A5 DD293741 A5 DD 293741A5 DD 90339853 A DD90339853 A DD 90339853A DD 33985390 A DD33985390 A DD 33985390A DD 293741 A5 DD293741 A5 DD 293741A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- metal oxide
- catalyst
- honeycomb
- concentration
- active component
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 63
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 22
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 abstract description 2
- 238000009827 uniform distribution Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 16
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 239000010970 precious metal Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000011068 loading method Methods 0.000 description 6
- 229910000510 noble metal Inorganic materials 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- XJUNLJFOHNHSAR-UHFFFAOYSA-J zirconium(4+);dicarbonate Chemical compound [Zr+4].[O-]C([O-])=O.[O-]C([O-])=O XJUNLJFOHNHSAR-UHFFFAOYSA-J 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- B01J35/19—
-
- B01J35/396—
-
- B01J35/56—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0242—Coating followed by impregnation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
- F01N2330/04—Methods of manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3912915A DE3912915C1 (es) | 1989-04-20 | 1989-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD293741A5 true DD293741A5 (de) | 1991-09-12 |
Family
ID=6379016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD90339853A DD293741A5 (de) | 1989-04-20 | 1990-04-18 | Monolith- bzw. wabenfoermiger katalysator |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5043311A (es) |
| EP (2) | EP0399203B1 (es) |
| JP (1) | JP2962768B2 (es) |
| KR (1) | KR910018081A (es) |
| BR (1) | BR9001710A (es) |
| DD (1) | DD293741A5 (es) |
| DE (3) | DE3912915C1 (es) |
| ES (2) | ES2020157T3 (es) |
| MX (1) | MX173865B (es) |
| ZA (1) | ZA902062B (es) |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI94455C (fi) * | 1992-08-28 | 1995-09-11 | Kemira Oy | Katalysaattori ja sen valmistusmenetelmä |
| GB2275624A (en) * | 1993-03-05 | 1994-09-07 | Jaguar Cars | Exhaust converter structure |
| JP3498357B2 (ja) * | 1993-05-28 | 2004-02-16 | マツダ株式会社 | 排気ガス浄化用触媒の製造方法 |
| FR2720296B1 (fr) * | 1994-05-27 | 1996-07-12 | Rhone Poulenc Chimie | Composés à base d'alumine, d'oxyde de cérium et d'oxyde de zirconium à réductibilité élevée, leur procédé de préparation et leur utilisation dans la préparation de catalyseurs. |
| US6596243B1 (en) | 1996-06-20 | 2003-07-22 | Honda Giken Kogyo Kabushiki Kaisha | Catalyst element for purifying exhaust gases from internal combustion engine |
| JP4201356B2 (ja) * | 1996-06-20 | 2008-12-24 | 本田技研工業株式会社 | 内燃機関用排ガス浄化装置 |
| DE19709102A1 (de) * | 1997-03-06 | 1998-10-08 | Degussa | Katalysatorsystem zur Abgasreinigung von Dieselmotoren |
| DE19714732A1 (de) * | 1997-04-09 | 1998-10-15 | Degussa | Verfahren zum Abscheiden von katalytisch aktiven Komponenten auf hochoberflächigen Trägermaterialien |
| DE19819372C2 (de) * | 1998-04-30 | 2000-03-02 | Degussa | Verfahren zur Verminderung des Stickoxidgehaltes der Abgase eines Verbrennungsmotors |
| DE19962544A1 (de) | 1999-12-23 | 2001-07-19 | Degussa | Verfahren zum Beschichten eines keramischen Wabenkörpers |
| JP2002177794A (ja) * | 2000-09-29 | 2002-06-25 | Denso Corp | セラミック触媒体およびセラミック担体 |
| US20030103875A1 (en) * | 2001-09-26 | 2003-06-05 | Siemens Westinghouse Power Corporation | Catalyst element having a thermal barrier coating as the catalyst substrate |
| US7541005B2 (en) * | 2001-09-26 | 2009-06-02 | Siemens Energy Inc. | Catalytic thermal barrier coatings |
| US7371352B2 (en) * | 2001-09-26 | 2008-05-13 | Siemens Power Generation, Inc. | Catalyst element having a thermal barrier coating as the catalyst substrate |
| DE10201042A1 (de) * | 2002-01-14 | 2003-08-07 | Eberspaecher J Gmbh & Co | Abgasanlage für Verbrennungsmotoren, mit einem katalytischen Abgaskonverter |
| WO2003086579A1 (fr) * | 2002-03-29 | 2003-10-23 | Ibiden Co., Ltd. | Filtre en ceramique et unite de decontamination de gaz d'echappement |
| DE10230330A1 (de) * | 2002-07-05 | 2004-01-22 | Audi Ag | Verfahren und Vorrichtung zum räumlich inhomogenen Beschichten eines Wabenkörpers und inhomogen beschichteter Wabenkörper |
| US7651753B2 (en) | 2002-07-05 | 2010-01-26 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Process and apparatus for spatially inhomogeneously coating a honeycomb body and inhomogeneously coated honeycomb body |
| EP1598111A1 (en) * | 2004-05-15 | 2005-11-23 | Delphi Technologies, Inc. | Catalyst concentration gradient in a catalysed filter |
| DE102005020963B4 (de) * | 2005-05-06 | 2007-05-24 | Audi Ag | Abgaskatalysator für eine Brennkraftmaschine |
| GB0603942D0 (en) | 2006-02-28 | 2006-04-05 | Johnson Matthey Plc | Exhaust system for a spark-ignited internal combustion engine |
| WO2008079668A2 (en) * | 2006-12-21 | 2008-07-03 | Dow Global Technologies Inc. | Improved soot filter |
| DE102006061685A1 (de) * | 2006-12-28 | 2008-07-03 | Robert Bosch Gmbh | Filterelement und Filter zur Abgasnachbehandlung einer Brennkraftmaschine |
| FR2912666B1 (fr) * | 2007-02-20 | 2009-05-08 | Peugeot Citroen Automobiles Sa | Convertisseur catalytique pour le traitement des gaz d'echappement des moteurs a combustion interne, ligne d'echappement comportant un tel convertisseur et procede de fabrication de ce convertisseur |
| DE102007029418A1 (de) * | 2007-06-26 | 2009-01-08 | Robert Bosch Gmbh | Katalysatorelement, Katalysator zur Abgasnachbehandlung einer Brennkraftmaschine und Verfahren zur Herstellung eines erfindungsgemäßen Katalysatorelements |
| GB0716833D0 (en) * | 2007-08-31 | 2007-10-10 | Nunn Andrew D | On board diagnostic system |
| DE102007056213A1 (de) * | 2007-11-22 | 2009-05-28 | Robert Bosch Gmbh | Verfahren zur Herstellung eines von Abgas durchströmbaren Formkörpers sowie Abgasanlage einer Brennkraftmaschine |
| JP2009136833A (ja) * | 2007-12-10 | 2009-06-25 | Toyota Motor Corp | 排気ガス浄化用モノリス触媒の製造方法とモノリス触媒 |
| JP5639343B2 (ja) * | 2009-03-31 | 2014-12-10 | 日本碍子株式会社 | ハニカム触媒体 |
| DE102010053603A1 (de) | 2010-11-12 | 2012-05-16 | Bayerische Motoren Werke Aktiengesellschaft | Katalysator |
| JP5757297B2 (ja) * | 2013-01-23 | 2015-07-29 | トヨタ自動車株式会社 | 触媒コンバーター |
| GB201303396D0 (en) | 2013-02-26 | 2013-04-10 | Johnson Matthey Plc | Oxidation catalyst for a combustion engine |
| DE102013204401B4 (de) * | 2013-03-13 | 2016-06-30 | Mtu Friedrichshafen Gmbh | System zur Abgasnachbehandlung, Verfahren und Brennkraftmaschine |
| DE102013204405A1 (de) * | 2013-03-13 | 2014-09-18 | Mtu Friedrichshafen Gmbh | System zur Abgasnachbehandlung für eine Brennkraftmaschine, Verfahren zur Beeinflussung einer Abgas-Zusammensetzung und Brennkraftmaschine |
| JP6539666B2 (ja) * | 2014-09-10 | 2019-07-03 | 株式会社キャタラー | 排ガス浄化用触媒 |
| US9482131B2 (en) * | 2015-01-08 | 2016-11-01 | Tenneco Automotive Operating Company Inc. | Exhaust system with zone coated catalyst |
| US10099212B2 (en) * | 2016-03-15 | 2018-10-16 | Cummins Emission Solutions Inc. | Hydrocarbon storage optimization and coking prevention on an oxidation catalyst |
| GB2557644A (en) * | 2016-12-14 | 2018-06-27 | Ford Global Tech Llc | Improvements in or relating to flow optimised washcoating |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130555B2 (es) * | 1971-09-03 | 1976-09-01 | ||
| US3791143A (en) * | 1971-11-10 | 1974-02-12 | Engelhard Min & Chem | Process and apparatus |
| US3908047A (en) * | 1973-12-05 | 1975-09-23 | Gulf Research Development Co | Process for coating an alumina base |
| US3904551A (en) * | 1973-12-19 | 1975-09-09 | Grace W R & Co | Process for preparing an auto exhaust catalytic converter |
| US3901821A (en) * | 1974-03-18 | 1975-08-26 | Air Prod & Chem | Multi-component catalyst |
| US4128506A (en) * | 1978-01-23 | 1978-12-05 | General Motors Corporation | Platinum-rhodium catalyst for automotive emission control |
| JPS56129043A (en) * | 1980-03-14 | 1981-10-08 | Ngk Insulators Ltd | Honeycomb structure of ceramic |
| US4318888A (en) * | 1980-07-10 | 1982-03-09 | General Motors Corporation | Wound foil structure comprising distinct catalysts |
| US4340505A (en) * | 1981-04-28 | 1982-07-20 | Johnson Matthey, Inc. | Reducing precious metal use in catalyst substrates |
| JPS6125644A (ja) * | 1984-07-12 | 1986-02-04 | Toyota Motor Corp | 排気ガス浄化用モノリス触媒 |
| JPH084749B2 (ja) * | 1985-01-21 | 1996-01-24 | 日本碍子株式会社 | セラミツクハニカム構造体 |
| JPS61274746A (ja) * | 1985-05-31 | 1986-12-04 | Nissan Motor Co Ltd | 一体型排ガス浄化用触媒 |
| FR2622126B1 (fr) * | 1987-10-21 | 1991-06-14 | Procatalyse Ste Fse Produits C | Catalyseur pour le traitement des gaz d'echappement des moteurs a combustion interne et procede de fabrication de ce catalyseur |
| JPH0441937Y2 (es) * | 1987-12-28 | 1992-10-02 |
-
1989
- 1989-04-20 DE DE3912915A patent/DE3912915C1/de not_active Expired - Lifetime
-
1990
- 1990-03-16 ZA ZA902062A patent/ZA902062B/xx unknown
- 1990-04-10 BR BR909001710A patent/BR9001710A/pt not_active IP Right Cessation
- 1990-04-14 ES ES199090107181T patent/ES2020157T3/es not_active Expired - Lifetime
- 1990-04-14 DE DE9191113441T patent/DE59000579D1/de not_active Expired - Fee Related
- 1990-04-14 EP EP90107181A patent/EP0399203B1/de not_active Expired - Lifetime
- 1990-04-14 ES ES199091113441T patent/ES2036420T3/es not_active Expired - Lifetime
- 1990-04-14 EP EP91113441A patent/EP0459534B1/de not_active Expired - Lifetime
- 1990-04-14 DE DE9090107181T patent/DE59000196D1/de not_active Expired - Lifetime
- 1990-04-18 KR KR1019900005405A patent/KR910018081A/ko not_active Application Discontinuation
- 1990-04-18 DD DD90339853A patent/DD293741A5/de not_active IP Right Cessation
- 1990-04-19 MX MX020381A patent/MX173865B/es unknown
- 1990-04-19 US US07/510,266 patent/US5043311A/en not_active Expired - Lifetime
- 1990-04-20 JP JP2103228A patent/JP2962768B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59000196D1 (de) | 1992-08-13 |
| ES2020157T3 (es) | 1993-03-16 |
| US5043311A (en) | 1991-08-27 |
| EP0459534A1 (de) | 1991-12-04 |
| JP2962768B2 (ja) | 1999-10-12 |
| EP0399203A2 (de) | 1990-11-28 |
| ES2020157A4 (es) | 1991-08-01 |
| EP0399203A3 (de) | 1991-04-10 |
| DE59000579D1 (de) | 1993-01-21 |
| BR9001710A (pt) | 1991-05-21 |
| MX173865B (es) | 1994-04-07 |
| ZA902062B (en) | 1990-12-28 |
| KR910018081A (ko) | 1991-11-30 |
| EP0399203B1 (de) | 1992-07-08 |
| ES2036420T3 (es) | 1993-05-16 |
| DE3912915C1 (es) | 1990-12-13 |
| JPH03143548A (ja) | 1991-06-19 |
| EP0459534B1 (de) | 1992-12-09 |
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