WO1990014887A1 - Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof - Google Patents

Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof Download PDF

Info

Publication number
WO1990014887A1
WO1990014887A1 PCT/JP1990/000752 JP9000752W WO9014887A1 WO 1990014887 A1 WO1990014887 A1 WO 1990014887A1 JP 9000752 W JP9000752 W JP 9000752W WO 9014887 A1 WO9014887 A1 WO 9014887A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
slurry
catalyst
platinum group
activated alumina
Prior art date
Application number
PCT/JP1990/000752
Other languages
English (en)
French (fr)
Inventor
Masaki Funabiki
Kunihide Kayano
Teiji Yamada
Original Assignee
N.E. Chemcat Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by N.E. Chemcat Corporation filed Critical N.E. Chemcat Corporation
Priority to EP90908627A priority Critical patent/EP0428752B1/en
Priority to DE69012059T priority patent/DE69012059T2/de
Publication of WO1990014887A1 publication Critical patent/WO1990014887A1/ja

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56Platinum group metals
    • B01J23/63Platinum group metals with rare earths or actinides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0215Coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/024Multiple impregnation or coating
    • B01J37/0244Coatings comprising several layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/03Precipitation; Co-precipitation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/902Multilayered catalyst
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
PCT/JP1990/000752 1989-06-09 1990-06-08 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof WO1990014887A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90908627A EP0428752B1 (en) 1989-06-09 1990-06-08 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof
DE69012059T DE69012059T2 (de) 1989-06-09 1990-06-08 Abgasreinigungskatalysator mit ausgezeichneter thermischer beständigkeit und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14549189 1989-06-09
JP1/145491 1989-06-09

Publications (1)

Publication Number Publication Date
WO1990014887A1 true WO1990014887A1 (en) 1990-12-13

Family

ID=15386495

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP1990/000753 WO1990014888A1 (en) 1989-06-09 1990-06-08 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof
PCT/JP1990/000752 WO1990014887A1 (en) 1989-06-09 1990-06-08 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/000753 WO1990014888A1 (en) 1989-06-09 1990-06-08 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof

Country Status (8)

Country Link
US (2) US5200384A (ja)
EP (2) EP0428753B1 (ja)
JP (1) JP2858945B2 (ja)
AT (2) ATE110586T1 (ja)
DE (2) DE69018571T2 (ja)
DK (2) DK0428752T3 (ja)
ES (2) ES2071099T3 (ja)
WO (2) WO1990014888A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09131530A (ja) * 1995-11-09 1997-05-20 Ict:Kk 内燃機関排ガス浄化用触媒
US5883037A (en) * 1994-05-27 1999-03-16 Rhone-Poulenc Chimie Thermally stable/highly reducible catalyst compositions comprising alumina and the oxides of cerium and zirconium
WO2006046316A1 (ja) * 2004-10-28 2006-05-04 Cataler Corporation 排ガス浄化用触媒

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5212142A (en) * 1991-11-04 1993-05-18 Engelhard Corporation High performance thermally stable catalyst
JP2979809B2 (ja) * 1992-01-10 1999-11-15 日産自動車株式会社 排ガス浄化用触媒及びその製造方法
US5376610A (en) * 1992-04-15 1994-12-27 Nissan Motor Co., Ltd. Catalyst for exhaust gas purification and method for exhaust gas purification
WO1994006546A1 (en) * 1992-09-21 1994-03-31 Allied-Signal Inc. Layered automotive catalyst with improved performance
GB9226434D0 (en) * 1992-12-18 1993-02-10 Johnson Matthey Plc Catalyst
FR2699524B1 (fr) 1992-12-21 1995-02-10 Rhone Poulenc Chimie Composition à base d'un oxyde mixte de cérium et de zirconium, préparation et utilisation.
FR2701471B1 (fr) 1993-02-10 1995-05-24 Rhone Poulenc Chimie Procédé de synthèse de compositions à base d'oxydes mixtes de zirconium et de cérium, compositions ainsi obtenues et utilisations de ces dernières.
FR2701472B1 (fr) 1993-02-10 1995-05-24 Rhone Poulenc Chimie Procédé de préparation de compositions à base d'oxydes mixtes de zirconium et de cérium.
JP3041662B2 (ja) 1993-06-21 2000-05-15 三徳金属工業株式会社 酸素吸収・放出能を有する複合酸化物、その製造法、及びその使用方法
JP3505236B2 (ja) 1994-10-05 2004-03-08 株式会社三徳 酸素吸収・放出能を有する複合酸化物及びその製造法
EP0885657B1 (en) * 1993-06-25 2008-01-02 BASF Catalysts LLC Catalyst composite
ATE191658T1 (de) * 1994-06-17 2000-04-15 Engelhard Corp Zusammengesetzter katalysator mit schichtstruktur
KR960028689A (ko) * 1994-12-26 1996-07-22 이형도 센서용 히터전극 및 이를 사용한 세라믹 히터
US6087298A (en) * 1996-05-14 2000-07-11 Engelhard Corporation Exhaust gas treatment system
EP0834348B1 (en) 1996-10-07 2004-03-31 Kabushiki Kaisha Toyota Chuo Kenkyusho Composite oxide, composite oxide carrier and catalyst
DE19653629A1 (de) * 1996-12-20 1998-06-25 Basf Ag Monoklines Zirconiumoxid mit hoher Oberfläche
US5766562A (en) * 1997-03-10 1998-06-16 Ford Global Technologies, Inc. Diesel emission treatment using precious metal on titania aerogel
JPH10328570A (ja) * 1997-03-31 1998-12-15 Mazda Motor Corp 排気ガス浄化用触媒及びその製造方法並びに排気ガス浄化方法
US5888464A (en) * 1997-04-08 1999-03-30 Engelhard Corporation Catalyst composition containing an intimately combined cerium-zirconium oxide
DE19714707A1 (de) * 1997-04-09 1998-10-15 Degussa Sauerstoff speicherndes Material mit hoher Temperaturstabilität sowie Verfahren zu seiner Herstellung
US6521440B1 (en) 1997-09-15 2003-02-18 Genencor International, Inc. Proteases from gram-positive organisms
JP3903598B2 (ja) * 1997-09-24 2007-04-11 トヨタ自動車株式会社 排ガス浄化用触媒およびその製造方法
US6129898A (en) * 1998-08-17 2000-10-10 Ford Global Technologies, Inc. NOx trap catalyst for lean burn engines
JP2000167402A (ja) * 1998-12-09 2000-06-20 Daihatsu Motor Co Ltd 排気ガス浄化用触媒
JP4382180B2 (ja) * 1998-11-06 2009-12-09 株式会社キャタラー 排ガス浄化用触媒
US6139813A (en) * 1998-12-18 2000-10-31 Ford Global Technologies, Inc. NOx trapping by metal-zirconia materials during lean-burn automotive engine operation
US6143272A (en) 1998-12-18 2000-11-07 Ford Global Technologies, Inc. Sol-gel processed metal-zirconia materials
US6335305B1 (en) * 1999-01-18 2002-01-01 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for purifying exhaust gas
GB0212321D0 (en) 2002-05-29 2002-07-10 Johnson Matthey Plc Catalyst composition
DE10024994A1 (de) 1999-05-24 2001-01-04 Daihatsu Motor Co Ltd Katalytischer Umwandler zum Reinigen von Abgasen
JP3489049B2 (ja) 1999-07-15 2004-01-19 日産自動車株式会社 排気ガス浄化用触媒
JP3859940B2 (ja) 1999-08-06 2006-12-20 日産自動車株式会社 排気ガス浄化用触媒及びその製造方法
US6881384B1 (en) * 1999-08-30 2005-04-19 Daihatsu Motor Co., Ltd. Catalytic converter for cleaning exhaust gas
JP3489048B2 (ja) 2000-02-01 2004-01-19 日産自動車株式会社 排気ガス浄化用触媒
ATE297805T1 (de) 2000-03-28 2005-07-15 Umicore Ag & Co Kg Einschichtiger hochleistungskatalysator
EP1199096A1 (en) * 2000-10-21 2002-04-24 Degussa AG Catalyst for destruction of CO, VOC, and halogenated organic emissions
US7247597B2 (en) * 2001-08-30 2007-07-24 Kabushiki Kaisha Toyota Chuo Kenkyusho Composite oxide, process for producing the same, and exhaust gas reducing co-catalyst
US7276212B2 (en) * 2001-10-01 2007-10-02 Engelhard Corporation Exhaust articles for internal combustion engines
JP4584555B2 (ja) * 2002-10-17 2010-11-24 株式会社デンソー セラミック触媒体
JP4959129B2 (ja) * 2004-02-16 2012-06-20 株式会社キャタラー 排ガス浄化用触媒
JP4648089B2 (ja) * 2005-05-27 2011-03-09 株式会社キャタラー 排ガス浄化用触媒
JP5021188B2 (ja) * 2005-08-01 2012-09-05 株式会社キャタラー 排ガス浄化用触媒
JP5322526B2 (ja) * 2008-07-17 2013-10-23 エヌ・イーケムキャット株式会社 自動車から排出される排気ガスを浄化するためのハニカム構造型触媒及びその製造方法、並びに、その触媒を使用した排気ガス浄化方法
US10792647B2 (en) 2009-04-21 2020-10-06 Johnson Matthey Public Limited Company Base metal catalysts for the oxidation of carbon monoxide and volatile organic compounds
US8530372B2 (en) * 2009-07-22 2013-09-10 Basf Corporation Oxygen storage catalyst with decreased ceria reduction temperature
JP4674264B2 (ja) * 2009-07-31 2011-04-20 株式会社キャタラー 排ガス浄化用触媒
JP5777690B2 (ja) * 2013-12-02 2015-09-09 田中貴金属工業株式会社 排ガス浄化触媒及びその製造方法
US10634030B2 (en) 2014-12-08 2020-04-28 Basf Corporation Nitrous oxide removal catalysts for exhaust systems
JP7184743B2 (ja) 2019-12-26 2022-12-06 トヨタ自動車株式会社 排ガス浄化用触媒
JP7248616B2 (ja) 2020-03-25 2023-03-29 トヨタ自動車株式会社 排ガス浄化用触媒

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222539A (ja) * 1985-03-28 1986-10-03 Nippon Shokubai Kagaku Kogyo Co Ltd 一体構造型排ガス浄化用触媒の製造方法
JPS6388040A (ja) * 1986-09-30 1988-04-19 Nippon Engeruharudo Kk 車輌用排気ガス浄化用触媒及びその製造方法
JPS63116741A (ja) * 1986-11-04 1988-05-21 Toyota Motor Corp 排気ガス浄化用触媒
JPS6439824U (ja) * 1987-09-03 1989-03-09

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609861B2 (ja) * 1979-12-19 1985-03-13 株式会社豊田中央研究所 排気ガス浄化用触媒
JPS56124442A (en) * 1980-03-06 1981-09-30 Toyota Central Res & Dev Lab Inc Catalyst for cleaning of exhaust gas
JPS59156434A (ja) * 1983-02-25 1984-09-05 Toyota Motor Corp 排気ガス浄化用触媒
CA1213874A (en) * 1983-05-12 1986-11-12 Tomohisa Ohata Process for producing honeycomb catalyst for exhaust gas conversion
JPS60110334A (ja) * 1983-11-21 1985-06-15 Nissan Motor Co Ltd 排ガス浄化用触媒の製造方法
US4727052A (en) * 1986-06-27 1988-02-23 Engelhard Corporation Catalyst compositions and methods of making the same
JPS6377544A (ja) * 1986-09-19 1988-04-07 Nissan Motor Co Ltd 排気ガス浄化用触媒
AU595655B2 (en) * 1986-11-04 1990-04-05 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for the purification of exhaust gas
JPS6470146A (en) * 1987-06-24 1989-03-15 Toyota Motor Corp Catalyst for purifying exhaust gas
JPH0615040B2 (ja) * 1987-07-06 1994-03-02 株式会社豊田中央研究所 排気浄化用触媒
JP2537239B2 (ja) * 1987-08-28 1996-09-25 エヌ・イーケムキヤツト 株式会社 耐熱性に優れた内燃機関排気ガス浄化用触媒及びその製造方法
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
US5015617A (en) * 1988-04-14 1991-05-14 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purifying exhaust gas and method for production thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222539A (ja) * 1985-03-28 1986-10-03 Nippon Shokubai Kagaku Kogyo Co Ltd 一体構造型排ガス浄化用触媒の製造方法
JPS6388040A (ja) * 1986-09-30 1988-04-19 Nippon Engeruharudo Kk 車輌用排気ガス浄化用触媒及びその製造方法
JPS63116741A (ja) * 1986-11-04 1988-05-21 Toyota Motor Corp 排気ガス浄化用触媒
JPS6439824U (ja) * 1987-09-03 1989-03-09

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5883037A (en) * 1994-05-27 1999-03-16 Rhone-Poulenc Chimie Thermally stable/highly reducible catalyst compositions comprising alumina and the oxides of cerium and zirconium
JPH09131530A (ja) * 1995-11-09 1997-05-20 Ict:Kk 内燃機関排ガス浄化用触媒
WO2006046316A1 (ja) * 2004-10-28 2006-05-04 Cataler Corporation 排ガス浄化用触媒
JPWO2006046316A1 (ja) * 2004-10-28 2008-05-22 株式会社キャタラー 排ガス浄化用触媒
JP4707672B2 (ja) * 2004-10-28 2011-06-22 株式会社キャタラー 排ガス浄化用触媒
US8975204B2 (en) 2004-10-28 2015-03-10 Cataler Corporation Exhaust-gas-purifying catalyst

Also Published As

Publication number Publication date
EP0428753A1 (en) 1991-05-29
EP0428753B1 (en) 1995-04-12
ATE120985T1 (de) 1995-04-15
EP0428752A4 (en) 1991-11-21
ES2071099T3 (es) 1995-06-16
EP0428752A1 (en) 1991-05-29
EP0428752B1 (en) 1994-08-31
DK0428752T3 (da) 1994-10-03
WO1990014888A1 (en) 1990-12-13
DE69012059T2 (de) 1995-03-02
DE69018571T2 (de) 1995-09-28
DK0428753T3 (da) 1995-07-03
ATE110586T1 (de) 1994-09-15
EP0428753A4 (en) 1991-11-21
US5200384A (en) 1993-04-06
DE69018571D1 (de) 1995-05-18
US5147842A (en) 1992-09-15
ES2058919T3 (es) 1994-11-01
DE69012059D1 (de) 1994-10-06
JP2858945B2 (ja) 1999-02-17

Similar Documents

Publication Publication Date Title
WO1990014887A1 (en) Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof
KR890003437A (ko) 우수한 내열성을 갖는 내연기관 배기가스 정화용 촉매 및 그 제조방법
ES2045482T3 (es) Soporte de catalizador y catalizador para tratamiento de gas de escape de motores de combustion interna, y procedimiento de fabricacion de dicho catalizador.
KR890006290A (ko) 백금을 함유하지 않은 삼방(three-way) 촉매
ATE52200T1 (de) Katalysator zur reinigung von abgasen.
EP1127605A3 (en) Exhaust gas catalyst and method of manufacturing same
DE3571938D1 (en) Process for producing monolithic catalyst for purifying exhaust gases
KR890006291A (ko) 로듐을 함유하지 않는 3방(三方 : three-way) 촉매
CA2131041A1 (en) Exhaust Emission Control Catalyst
KR920019415A (ko) 배기가스 정화용 촉매
AU7959082A (en) Three-way catalysts for exhaust gas
KR940018546A (ko) 배기가스 정화용 촉매
EP0385123A3 (en) Thermally stable ferrites for reduction of hydrogen sulfide emissions from automobile exhaust
KR890012694A (ko) 배기 가스 정화용 촉매 및 그 제법
CA2288105A1 (en) Exhaust gas purification method and exhaust gas purification catalyst
CA2194031A1 (en) Purifying catalyst for exhaust gas from internal combustion engine
GB1400232A (en) Method of preparing a catalyst body
JP3272015B2 (ja) 排気ガス浄化用触媒
JPS5778946A (en) Catalyst for purifying exhaust gas
JPS621739U (ja)
JPS5781832A (en) Catalyst for purification of waste gas
JPH1052640A (ja) 排気ガス浄化用触媒
JPS6439825U (ja)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1990908627

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1990908627

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1990908627

Country of ref document: EP