BR8502200A - Processo para a producao seletiva de aminas secundarias e aminas primarias e catalisador de carvao ativo - Google Patents
Processo para a producao seletiva de aminas secundarias e aminas primarias e catalisador de carvao ativoInfo
- Publication number
- BR8502200A BR8502200A BR8502200A BR8502200A BR8502200A BR 8502200 A BR8502200 A BR 8502200A BR 8502200 A BR8502200 A BR 8502200A BR 8502200 A BR8502200 A BR 8502200A BR 8502200 A BR8502200 A BR 8502200A
- Authority
- BR
- Brazil
- Prior art keywords
- amines
- active carbon
- carbon catalyst
- selective production
- secondary amines
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 title 1
- 239000003054 catalyst Substances 0.000 title 1
- 150000003141 primary amines Chemical class 0.000 title 1
- 150000003335 secondary amines Chemical class 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
- C07F9/3813—N-Phosphonomethylglycine; Salts or complexes thereof
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
- C07F9/3817—Acids containing the structure (RX)2P(=X)-alk-N...P (X = O, S, Se)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60883184A | 1984-05-10 | 1984-05-10 | |
| US06/705,391 US4624937A (en) | 1984-05-10 | 1985-02-28 | Process for removing surface oxides from activated carbon catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8502200A true BR8502200A (pt) | 1986-01-14 |
Family
ID=27085877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8502200A BR8502200A (pt) | 1984-05-10 | 1985-05-09 | Processo para a producao seletiva de aminas secundarias e aminas primarias e catalisador de carvao ativo |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4624937A (pt) |
| EP (1) | EP0162035B1 (pt) |
| KR (2) | KR870001854B1 (pt) |
| AU (1) | AU569794B2 (pt) |
| BR (1) | BR8502200A (pt) |
| CA (1) | CA1244398A (pt) |
| DE (1) | DE3574827D1 (pt) |
| ES (1) | ES8703403A1 (pt) |
| HU (1) | HU205028B (pt) |
| IL (1) | IL75161A (pt) |
| MX (2) | MX165168B (pt) |
Families Citing this family (78)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444031A (en) * | 1993-01-21 | 1995-08-22 | Calgon Carbon Corporation | Process for making catalytic carbon |
| US6114273A (en) * | 1993-01-21 | 2000-09-05 | Calgon Carbon Corporation | Method for sox removal by catalytic carbon |
| US5356849A (en) * | 1993-01-21 | 1994-10-18 | Calgon Carbon Corporation | Catalytic carbon |
| JP2667059B2 (ja) * | 1993-01-21 | 1997-10-22 | カルゴン カーボン コーポレーション | 触媒炭素によるＮＯ▲下ｘ▼除去法 |
| US5352370A (en) * | 1993-01-21 | 1994-10-04 | Calgon Carbon Corporation | Method for SOx removal by catalytic carbon |
| US5338458A (en) * | 1993-01-21 | 1994-08-16 | Calgon Carbon Corporation | Method for removing chloramine with catalytic carbon |
| US5948938A (en) * | 1995-03-07 | 1999-09-07 | Sankyo Company, Limited | Process for preparing N-phosphonomethylglycine |
| TW322481B (pt) * | 1995-03-07 | 1997-12-11 | Sankyo Co | |
| US5637232A (en) * | 1996-03-11 | 1997-06-10 | Calgon Carbon Corporation | Process for the catalytic oxidation of ferrous iron in liquid media |
| CN1239473A (zh) | 1997-02-13 | 1999-12-22 | 孟山都公司 | 制备氨基羧酸的方法 |
| US6054608A (en) | 1997-05-05 | 2000-04-25 | Monsanto Company | Method for preparing formylphosphonic acid |
| US6114554A (en) * | 1997-10-29 | 2000-09-05 | Flexsys America L.P. | Preparation of quinonediimines from phenylenediamines using a hypochlorite as an oxidation agent |
| US5959126A (en) * | 1997-10-29 | 1999-09-28 | Flexsys America L. P. | Formation of quinonedimines from phenylenediamines by catalytic oxidation |
| US6187937B1 (en) | 1998-01-16 | 2001-02-13 | Flexsys America L.P. | Preparation of N-phenyl-benzoquinoneimine from hydroxydiphenylamines |
| US6232494B1 (en) * | 1998-02-12 | 2001-05-15 | Monsanto Company | Process for the preparation of N-(phosphonomethyl)glycine by oxidizing N-substituted N-(phosphonomethyl)glycine |
| US6417133B1 (en) * | 1998-02-25 | 2002-07-09 | Monsanto Technology Llc | Deeply reduced oxidation catalyst and its use for catalyzing liquid phase oxidation reactions |
| US5942643A (en) * | 1998-05-14 | 1999-08-24 | Calgon Carbon Corporation | Method for the manufacture of N-phosphonomethylglycine from N-phosphonomethyliminodiacetic acid using a low temperature catalytic carbon |
| AU754281B2 (en) | 1998-08-12 | 2002-11-14 | Monsanto Company | Continuous process for the preparation of N-(phosphonomethyl) iminodiacetic acid |
| US6194604B1 (en) | 1998-12-10 | 2001-02-27 | Monsanto Company | Process for producing phosphorous acid |
| CZ2002279A3 (cs) | 1999-07-23 | 2002-04-17 | Basf Aktiengesellschaft | Způsob výroby N-fosfonomethylglycinu nebo jeho soli |
| CN101165064A (zh) | 1999-12-21 | 2008-04-23 | 孟山都技术有限责任公司 | 氧化基质的做法 |
| US6274760B1 (en) | 2000-03-14 | 2001-08-14 | Monsanto Co. | Preparation of formylphosphonic acid from tertiary aminomethylphosphonic acid N-oxides |
| US6376708B1 (en) * | 2000-04-11 | 2002-04-23 | Monsanto Technology Llc | Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| BR0110907A (pt) * | 2000-05-15 | 2003-03-11 | Monsanto Technology Llc | Preparação de compostos de ácido iminodiacético provenientes de substratos de monoetanolamina |
| WO2001092272A2 (en) | 2000-05-22 | 2001-12-06 | Monsanto Technology Llc | Reaction systems for making n-(phosphonomethyl)glycine compounds |
| US6927304B2 (en) | 2000-05-22 | 2005-08-09 | Monsanto Technology Llc | De-oxygenation treatment for noble metal on carbon catalysts used in liquid phase oxidation reactions |
| DE10028654A1 (de) | 2000-06-09 | 2001-12-20 | Sandler Helmut Helsa Werke | Herstellung von Aktivkohle mit erhöhter katalytischer Aktivität |
| US6441223B1 (en) | 2000-11-30 | 2002-08-27 | Monsanto Technology Llc | Method of making phosphorus-containing compounds and products thereof |
| US7119047B1 (en) * | 2001-02-26 | 2006-10-10 | C And T Company, Inc. | Modified activated carbon for capacitor electrodes and method of fabrication thereof |
| DE10120484A1 (de) * | 2001-04-25 | 2002-10-31 | Degussa | Verfahren und Vorrichtung zur thermischen Behandlung von pulverförmigen Stoffen |
| WO2002095373A1 (en) | 2001-05-22 | 2002-11-28 | Monsanto Technology Llc | Use of infrared spectroscopy for on-line process control and endpoint detection |
| JP4342123B2 (ja) * | 2001-06-06 | 2009-10-14 | アドバンスト・キャパシタ・テクノロジーズ株式会社 | 残存活性酸化水素の除去方法 |
| CA2463776A1 (en) | 2001-10-18 | 2003-04-24 | Monsanto Technology Llc | Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| US7390920B2 (en) * | 2002-02-14 | 2008-06-24 | Monsanto Technology Llc | Oxidation catalyst and process |
| EP1474231B1 (en) * | 2002-02-14 | 2015-10-21 | Monsanto Technology LLC | Process for oxidation of n-(phosphonomethyl)iminodiacetic acid |
| US20040124152A1 (en) * | 2002-05-08 | 2004-07-01 | Meadwestvaco Corporation | Catalytic activated carbon for removal of chloramines from water |
| US6706194B2 (en) * | 2002-05-08 | 2004-03-16 | Meadwestvaco Corporation | Method for removal of chloramines from drinking water |
| US6699393B2 (en) * | 2002-05-08 | 2004-03-02 | Meadwestvaco Corporation | Method for removal of chloramines from drinking water |
| US6921834B2 (en) | 2002-05-22 | 2005-07-26 | Dow Agrosciences Llc | Continuous process for preparing N-phosphonomethyl glycine |
| JP4202047B2 (ja) * | 2002-05-24 | 2008-12-24 | 富士通株式会社 | ヘッド位置制御方法及びデイスク記憶装置 |
| TWI306779B (en) * | 2002-06-28 | 2009-03-01 | Monsanto Technology Llc | Use of tellurium in carbon-supported, noble metal-containing catalysts for liquid phase oxidation reactions |
| BRPI0413586A (pt) | 2003-08-14 | 2006-10-17 | Monsanto Technology Llc | catalisadores contendo metal de transição e processo para a preparação dos mesmos e uso como catalisadores de oxidação e de desidrogenação |
| DK1678188T3 (da) * | 2003-09-17 | 2008-05-13 | Monsanto Technology Llc | Fremgangsmåde til udvinding af krystallinsk produkt fra oplösning |
| US8703639B2 (en) * | 2004-09-15 | 2014-04-22 | Monsanto Technology Llc | Oxidation catalyst and its use for catalyzing liquid phase oxidation reactions |
| AR054096A1 (es) | 2004-11-12 | 2007-06-06 | Monsanto Technology Llc | Recuperacion de metales nobles de corrientes de proceso acuosas y proceso de preparacion de n-(fosfonometil)-glicina |
| US20060157419A1 (en) * | 2005-01-14 | 2006-07-20 | Clemson University | Activated carbon exhibiting enhanced removal of dissolved natural organic matter from water |
| EP1858642A2 (en) * | 2005-02-17 | 2007-11-28 | Monsanto Technology, LLC | Transition metal-containing catalysts and catalyst combinations including transition metal-containing catalysts and processes for their preparation and use as oxidation catalysts |
| MX344108B (es) * | 2005-03-04 | 2016-12-05 | Monsanto Technology Llc | Mitigacion de la necrosis en plantas de algodon transgenicas tolerantes al glifosato tratadas con formulaciones herbicidas de glifosato. |
| EP1863824B1 (en) | 2005-04-01 | 2016-10-19 | Monsanto Technology, LLC | Control of n-(phosphonomethyl) iminodiacetic acid conversion in manufacture of glyphosate |
| CA2642226A1 (en) * | 2006-02-17 | 2007-08-30 | Monsanto Technology Llc | Transition metal-containing catalysts and processes for their preparation and use as fuel cell catalysts |
| KR101350445B1 (ko) * | 2006-12-26 | 2014-01-15 | 재단법인 포항산업과학연구원 | 탄소 재료의 후처리 방법 및 그에 의해 제조되는 커패시터전극용 탄소 재료 |
| US7771494B2 (en) * | 2007-01-31 | 2010-08-10 | Monsanto Technology Llc | Process for selective removal of water and impurities from N-(phosphonomethyl)glycine |
| US8252953B2 (en) | 2008-05-01 | 2012-08-28 | Monsanto Technology Llc | Metal utilization in supported, metal-containing catalysts |
| JP2011521775A (ja) * | 2008-05-14 | 2011-07-28 | スリーエム イノベイティブ プロパティズ カンパニー | ろ過材、及びそれを含む水ろ過システム |
| WO2010135141A1 (en) | 2009-05-18 | 2010-11-25 | Monsanto Technology Llc | Recovery of phosphorus values and salt impurities from aqueous waste streams |
| WO2011125504A1 (ja) | 2010-03-31 | 2011-10-13 | クラレケミカル株式会社 | 活性炭及びその用途 |
| AU2012309078B2 (en) | 2011-09-12 | 2015-11-26 | Solventum Intellectual Properties Company | Filtration medium comprising a carbon oxychalcogenide |
| CN104302378B (zh) * | 2011-12-22 | 2017-05-03 | 3M创新有限公司 | 包含含金属颗粒的过滤介质 |
| US10519046B2 (en) * | 2012-03-30 | 2019-12-31 | Selecto, Inc. | High flow-through gravity purification system for water |
| BR112015000988A2 (pt) | 2012-07-17 | 2017-06-27 | Straitmark Holding Ag | método para a síntese de ácido n-fosfonometiliminodiacético ou derivados do mesmo |
| BR112015000993B1 (pt) | 2012-07-17 | 2020-04-28 | Monsanto Technology Llc | método para a síntese de um ácido alfaaminoalquileno fosfônico ou de um éster do mesmo |
| CN104812764B (zh) | 2012-07-17 | 2017-06-09 | 斯特雷特马克控股股份公司 | 用于合成n‑(膦酰基甲基)甘氨酸的方法 |
| EP2875036A1 (en) | 2012-07-17 | 2015-05-27 | Straitmark Holding AG | Method for the synthesis of aminoalkylenephosphonic acid |
| RU2674023C9 (ru) | 2012-07-17 | 2019-01-24 | МОНСАНТО ТЕКНОЛОДЖИ ЭлЭлСи | Способ синтеза n-(фосфонометил)глицина |
| JP6416185B2 (ja) | 2013-03-12 | 2018-10-31 | スリーエム イノベイティブ プロパティズ カンパニー | 水溶液からのクロラミン及び水銀の除去 |
| WO2015038965A1 (en) * | 2013-09-13 | 2015-03-19 | Meadwestvaco Corporation | Catalytic activated carbon structures and methods of use and manufacture |
| CN104129777B (zh) * | 2014-08-26 | 2016-03-30 | 武汉科技大学 | 一种多功能化生物炭及其制备方法 |
| CN104307855B (zh) * | 2014-09-30 | 2016-09-14 | 武汉科技大学 | 采用多功能化生物炭原位修复重金属污染土壤的方法 |
| KR101896319B1 (ko) * | 2016-02-25 | 2018-10-04 | 현대자동차 주식회사 | 활성탄소 및 이의 제조방법 |
| CN110312564B (zh) | 2017-02-13 | 2021-11-16 | 卡尔冈碳素公司 | 氯胺和氯去除材料及其制备方法 |
| BR112019027682A2 (pt) | 2017-06-26 | 2020-09-15 | Monsanto Technology Llc | controle de fósforo para fluxos de resíduos provenientes de processos de produção de glifosato |
| WO2019133728A1 (en) | 2017-12-29 | 2019-07-04 | Marmon Water (Singapore) Pte. Ltd. | Filtration media for removing chloramine, chlorine, and ammonia, and method of making the same |
| KR20200119313A (ko) | 2018-02-13 | 2020-10-19 | 칼곤 카본 코포레이션 | 화학적 수착제 산화 방법 및 이로부터 제조된 수착제 |
| JP7477527B2 (ja) | 2019-04-03 | 2024-05-01 | カルゴン カーボン コーポレーション | ペルフルオロアルキルおよびポリフルオロアルキル吸着剤材料および使用方法 |
| CN120679482A (zh) | 2020-07-14 | 2025-09-23 | 卡尔冈碳素公司 | 用于从流体中去除pfas的具有高体积碘值和高体积糖蜜值的吸附剂和其制备和使用方法 |
| KR20230062592A (ko) | 2020-08-31 | 2023-05-09 | 칼곤 카본 코포레이션 | 철 및 질소로 처리된 흡착제 및 이를 제조하는 방법 |
| JP2023538867A (ja) | 2020-08-31 | 2023-09-12 | カルゴン カーボン コーポレーション | 銅、鉄および窒素処理された吸着剤およびその製造方法 |
| WO2022047501A1 (en) | 2020-08-31 | 2022-03-03 | Calgon Carbon Corporation | Copper and nitrogen treated sorbent and method for making same |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1810871A (en) * | 1928-09-17 | 1931-06-16 | Darco Corp | Activation of carbon |
| US3243387A (en) * | 1963-04-25 | 1966-03-29 | Leuna Werke Veb | Palladium-silver-iron oxide on alphaalumina catalyst composition for the selective hydrogenation of acetylene |
| US3306761A (en) * | 1963-04-26 | 1967-02-28 | Phillips Petroleum Co | Controlled partial oxidation of carbon black with ammonium nitrate, preferably in the presence of ammonium, alkali metal, and alkaline earth metal halides |
| US3243383A (en) * | 1963-11-07 | 1966-03-29 | Monsanto Co | Process for regenerating catalysts |
| US3497564A (en) * | 1967-08-28 | 1970-02-24 | Dow Chemical Co | Oxidative dehydrogenation of alkylbenzenes |
| JPS5111037B2 (pt) * | 1973-04-26 | 1976-04-08 | ||
| US3969398A (en) * | 1974-05-01 | 1976-07-13 | Monsanto Company | Process for producing N-phosphonomethyl glycine |
| US4055628A (en) * | 1974-09-02 | 1977-10-25 | The British Petroleum Company Limited | Method for preparing graphite containing carbon |
| US4139416A (en) * | 1975-01-21 | 1979-02-13 | Centro Sperimentale Metallurgico S.P.A. | Carbonaceous material with high characteristics of surface area and activity and process for producing the same |
| JPS589763B2 (ja) * | 1975-12-15 | 1983-02-22 | 武田薬品工業株式会社 | チユウワサレタ スイジヨウキフカツリユウジヨウカツセイタン ノ セイゾウホウ |
| SU567666A1 (ru) * | 1975-12-29 | 1977-08-05 | Ленинградский Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета | Способ получени катионита на основе активного угл |
| US4264776A (en) * | 1976-01-02 | 1981-04-28 | Monsanto Company | Production of secondary amines |
| US4072706A (en) * | 1976-01-02 | 1978-02-07 | Monsanto Company | Oxidation of phosphonomethylamines |
| US4075157A (en) * | 1976-04-30 | 1978-02-21 | Phillips Petroleum Company | Production of non-carcinogenic carbon black |
| JPS5813490B2 (ja) * | 1976-06-30 | 1983-03-14 | 荏原インフイルコ株式会社 | 活性炭の再生方法 |
| US4158643A (en) * | 1976-07-15 | 1979-06-19 | Calgon Corporation | Catalytic carbon for oxidation of carbon monoxide in the presence of sulfur dioxide |
| US4083801A (en) * | 1976-12-20 | 1978-04-11 | Aluminum Company Of America | High purity activated carbon produced by calcining acid leached coal containing residual leaching solution |
| JPS5617634A (en) * | 1979-07-21 | 1981-02-19 | Fuji Electric Co Ltd | Activating treatment of carbon material for so3/so2 conversion |
-
1985
- 1985-02-28 US US06/705,391 patent/US4624937A/en not_active Expired - Lifetime
- 1985-05-08 ES ES542920A patent/ES8703403A1/es not_active Expired
- 1985-05-09 MX MX205257A patent/MX165168B/es unknown
- 1985-05-09 BR BR8502200A patent/BR8502200A/pt not_active IP Right Cessation
- 1985-05-09 AU AU42212/85A patent/AU569794B2/en not_active Ceased
- 1985-05-09 CA CA000481143A patent/CA1244398A/en not_active Expired
- 1985-05-09 KR KR1019850003163A patent/KR870001854B1/ko not_active Expired
- 1985-05-10 IL IL75161A patent/IL75161A/xx not_active IP Right Cessation
- 1985-05-10 DE DE8585870066T patent/DE3574827D1/de not_active Expired - Lifetime
- 1985-05-10 HU HU851779A patent/HU205028B/hu not_active IP Right Cessation
- 1985-05-10 EP EP85870066A patent/EP0162035B1/en not_active Expired
-
1987
- 1987-05-04 KR KR1019870004385A patent/KR890001298B1/ko not_active Expired
-
1991
- 1991-12-23 MX MX9102781A patent/MX9102781A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX165168B (es) | 1992-10-29 |
| IL75161A (en) | 1988-10-31 |
| HU205028B (en) | 1992-03-30 |
| EP0162035B1 (en) | 1989-12-20 |
| KR890001298B1 (ko) | 1989-04-29 |
| CA1244398A (en) | 1988-11-08 |
| DE3574827D1 (de) | 1990-01-25 |
| HUT39627A (en) | 1986-10-29 |
| IL75161A0 (en) | 1985-09-29 |
| MX9102781A (es) | 1994-05-31 |
| AU569794B2 (en) | 1988-02-18 |
| KR850008661A (ko) | 1985-12-21 |
| EP0162035A3 (en) | 1987-04-15 |
| KR870001854B1 (ko) | 1987-10-17 |
| ES542920A0 (es) | 1987-02-16 |
| ES8703403A1 (es) | 1987-02-16 |
| US4624937A (en) | 1986-11-25 |
| AU4221285A (en) | 1985-11-14 |
| KR880014858A (ko) | 1988-12-24 |
| EP0162035A2 (en) | 1985-11-21 |
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