NL194792C - Werkwijze voor het bereiden van kleiaarde van het boehmiettype. - Google Patents
Werkwijze voor het bereiden van kleiaarde van het boehmiettype. Download PDFInfo
- Publication number
- NL194792C NL194792C NL8900924A NL8900924A NL194792C NL 194792 C NL194792 C NL 194792C NL 8900924 A NL8900924 A NL 8900924A NL 8900924 A NL8900924 A NL 8900924A NL 194792 C NL194792 C NL 194792C
- Authority
- NL
- Netherlands
- Prior art keywords
- clay
- dodo
- pore
- pore radius
- earth
- Prior art date
Links
- 239000004927 clay Substances 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 15
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 title claims description 8
- 229910001593 boehmite Inorganic materials 0.000 title claims description 6
- 239000011148 porous material Substances 0.000 claims description 35
- 238000009826 distribution Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 241001115903 Raphus cucullatus Species 0.000 description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- RSPISYXLHRIGJD-UHFFFAOYSA-N OOOO Chemical compound OOOO RSPISYXLHRIGJD-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000012876 carrier material Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229910018404 Al2 O3 Inorganic materials 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 101100350187 Caenorhabditis elegans odd-2 gene Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- SRIXLBAWSGGPTF-NNZUOWEZSA-N alpha-Kdo-(2->4)-alpha-Kdo Chemical group O[C@H]1[C@@H]([C@H](O)CO)O[C@@](O)(C(O)=O)C[C@H]1O[C@@]1(C(O)=O)O[C@H]([C@H](O)CO)[C@H](O)[C@H](O)C1 SRIXLBAWSGGPTF-NNZUOWEZSA-N 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000002459 porosimetry Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
- C01F7/447—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes
- C01F7/448—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes using superatmospheric pressure, e.g. hydrothermal conversion of gibbsite into boehmite
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Catalysts (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3823895A DE3823895C1 (OSRAM) | 1988-07-14 | 1988-07-14 | |
| DE3823895 | 1988-07-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL8900924A NL8900924A (nl) | 1990-02-01 |
| NL194792B NL194792B (nl) | 2002-11-01 |
| NL194792C true NL194792C (nl) | 2003-03-04 |
Family
ID=6358672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8900924A NL194792C (nl) | 1988-07-14 | 1989-04-13 | Werkwijze voor het bereiden van kleiaarde van het boehmiettype. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5055019A (OSRAM) |
| JP (1) | JPH0678164B2 (OSRAM) |
| BE (1) | BE1001847A3 (OSRAM) |
| DE (1) | DE3823895C1 (OSRAM) |
| FR (1) | FR2634194B1 (OSRAM) |
| GB (1) | GB2220651B (OSRAM) |
| IT (1) | IT1230055B (OSRAM) |
| NL (1) | NL194792C (OSRAM) |
Families Citing this family (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178849A (en) * | 1991-03-22 | 1993-01-12 | Norton Company | Process for manufacturing alpha alumina from dispersible boehmite |
| JP3342705B2 (ja) * | 1991-07-31 | 2002-11-11 | 旭硝子株式会社 | 記録シート用塗布液 |
| US5593654A (en) * | 1992-03-12 | 1997-01-14 | Condea Vista Company | Preparation of stabilized alumina having enhanced resistance to loss of surface area at high temperatures |
| EP0630356A4 (en) * | 1992-03-12 | 1995-06-14 | Vista Chemical | PRODUCTION OF STABILIZED ALUMINUM OXIDE WITH INCREASED RESISTANCE AGAINST SURFACE LOSS AT HIGH TEMPERATURES. |
| WO1993017967A1 (en) * | 1992-03-12 | 1993-09-16 | Vista Chemical Company | Preparation of alumina having increased porosity |
| US5367308A (en) * | 1992-05-29 | 1994-11-22 | Iowa State University Research Foundation, Inc. | Thin film resonating device |
| RU2114785C1 (ru) * | 1997-05-15 | 1998-07-10 | Общество с ограниченной ответственностью "ИВТЕХИМ" | Способ получения гидроксида алюминия |
| DE19836821A1 (de) * | 1998-08-14 | 2000-02-24 | Rwe Dea Ag | Böhmitische Tonerden und aus diesen erhältliche phasenreine, hochtemperaturstabile und hochporöse Aluminiumoxide |
| DE19930924A1 (de) | 1999-07-06 | 2001-01-18 | Rwe Dea Ag | Verfahren zur Herstellung von Tonerdehydraten durch Fällung von Aluminiumsalzen in Gegenwart von Kristallisationskeimen |
| US7606731B2 (en) * | 1999-08-17 | 2009-10-20 | Mcclung Iii Guy Lamonte | Price guarantee methods and systems |
| DE60013750T2 (de) | 1999-12-27 | 2005-10-06 | Sumitomo Chemical Co., Ltd. | Aluminiumhydroxid, Zusammensetzung einer Reifenlauffläche und Luftreifen enthaltend Aluminiumhydroxid |
| GB2360477A (en) * | 2000-03-22 | 2001-09-26 | Gea Sprio Gills Ltd | Brazing aluminium components |
| US6461411B1 (en) * | 2000-12-04 | 2002-10-08 | Matheson Tri-Gas | Method and materials for purifying hydride gases, inert gases, and non-reactive gases |
| FR2823193B1 (fr) * | 2001-04-04 | 2004-02-13 | Pro Catalyse | Agglomeres d'alumine, leur procede de preparation, et leurs utilisations comme support de catalyseur, catalyseur ou absorbant |
| FR2823194B1 (fr) * | 2001-04-10 | 2004-02-13 | Pro Catalyse | Agglomeres d'alumine utilisables, notamment, comme supports de catalyseur, catalyseurs ou adsorbants, et leurs procedes de preparation |
| US20050250642A1 (en) * | 2001-05-10 | 2005-11-10 | Dennis Stamires | Continuous process and apparatus for the efficient conversion of inorganic solid particles |
| CN100444951C (zh) * | 2001-05-10 | 2008-12-24 | 阿克佐诺贝尔股份有限公司 | 有效转化无机固体颗粒的连续方法和设备 |
| US20030168627A1 (en) * | 2002-02-22 | 2003-09-11 | Singh Rajiv K. | Slurry and method for chemical mechanical polishing of metal structures including refractory metal based barrier layers |
| EP1551785A4 (en) * | 2002-10-16 | 2006-04-05 | Conocophillips Co | STABILIZED MOUNTAIN ALUMINUM OXIDE CATALYST CARRIERS AS BOEHMIT AND CATALYSTS MANUFACTURED THEREOF |
| US20040127352A1 (en) * | 2002-10-16 | 2004-07-01 | Conocophillips Company | High hydrothermal stability catalyst support |
| US7341976B2 (en) * | 2002-10-16 | 2008-03-11 | Conocophillips Company | Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using |
| WO2004035511A2 (en) * | 2002-10-16 | 2004-04-29 | Conocophillips Company | Fischer-tropsch processes and catalysts using stabilized supports |
| RU2005115080A (ru) * | 2002-10-16 | 2005-10-27 | КонокоФиллипс Кампэни (US) | Способ получения гидротермально стабильных катализаторов конверсии синтез-газа в углеводороды, способ получения углеводородов и катализатор с повышенной гидротермальной стабильностью |
| ATE292021T1 (de) * | 2003-01-10 | 2005-04-15 | Ilford Imaging Ch Gmbh | Aufzeichnungsmaterial für den tintenstrahldruck |
| EP1492389A1 (de) * | 2003-06-26 | 2004-12-29 | ILFORD Imaging Switzerland GmbH | Optische Verstärkermaterialien |
| US7927675B2 (en) | 2003-09-08 | 2011-04-19 | Ilford Imaging Switzerland Gmbh | Recording sheets for ink jet printing |
| ATE309916T1 (de) | 2003-09-08 | 2005-12-15 | Ilford Imaging Ch Gmbh | Aufzeichnungsmaterial für den tintenstrahldruck |
| US7163963B2 (en) * | 2003-09-08 | 2007-01-16 | Conocophillips Company | Chemically and thermally stabilized alumina for Fischer-Tropsch catalysts |
| US7541310B2 (en) * | 2003-10-16 | 2009-06-02 | Conocophillips Company | Silica-alumina catalyst support, catalysts made therefrom and methods of making and using same |
| WO2005037745A1 (en) * | 2003-10-16 | 2005-04-28 | Conocophillips Company | Silica-alumina catalyst support with bimodal pore distribution, catalysts, methods of making and using same |
| DE102004009805A1 (de) * | 2004-02-28 | 2005-09-15 | Basf Ag | Trägerkatalysator definierter Porenverteilung im Bereich der Mesoporen |
| KR100579207B1 (ko) * | 2005-03-23 | 2006-05-12 | 한국화학연구원 | 고 표면적을 갖는 보헤마이트 및 감마-알루미나의 제조방법 |
| MX2007014159A (es) * | 2005-05-12 | 2008-02-07 | Solvay | Catalizador y proceso de oxicloracion en el que se usa dicho catalizador. |
| TWI432381B (zh) * | 2005-12-12 | 2014-04-01 | Grace W R & Co | 氧化鋁粒子 |
| US9102690B2 (en) * | 2007-12-28 | 2015-08-11 | 3M Innovative Properties Company | Acicular boehmite nanoparticles |
| EP2164302A1 (de) | 2008-09-12 | 2010-03-17 | Ilford Imaging Switzerland Gmbh | Optisches Element und Verfahren zu seiner Herstellung |
| CN102030351B (zh) * | 2009-09-24 | 2012-08-15 | 中国石油化工股份有限公司 | 一种双峰孔分布的大孔氧化铝及其制备方法 |
| DE102011107702A1 (de) | 2011-07-14 | 2013-01-17 | Sasol Germany Gmbh | Verfahren zur Herstellung von Kompositen aus Aluminiumoxid und Cer-/Zirkonium-Mischoxiden |
| EP2604337A1 (en) | 2011-12-16 | 2013-06-19 | Treibacher Industrie AG | Ceria zirconia alumina composition with enhanced thermal stability |
| EP2731709B1 (en) | 2011-07-14 | 2020-01-22 | Treibacher Industrie AG | Ceria zirconia alumina composition with enhanced thermal stability |
| CN103041870B (zh) * | 2011-10-17 | 2014-11-19 | 中国石油化工股份有限公司 | 一种氧化铝载体及其制备方法和应用 |
| KR102048665B1 (ko) | 2012-03-06 | 2019-11-25 | 스미또모 가가꾸 가부시끼가이샤 | 수산화알루미늄 분말 |
| KR102221556B1 (ko) | 2012-03-16 | 2021-03-02 | 엠. 테크닉 가부시키가이샤 | 고체 금 니켈 합금 나노 입자 및 그 제조 방법 |
| JP2014023997A (ja) * | 2012-07-26 | 2014-02-06 | M Technique Co Ltd | 微粒子の製造方法 |
| JP6229351B2 (ja) * | 2013-07-26 | 2017-11-15 | 株式会社デンソー | アルミニウム製品の製造方法および製造装置 |
| CN106348327B (zh) * | 2016-08-29 | 2020-07-24 | 宁波盈诺新材料科技有限公司 | 超大孔拟薄水铝石及其制备方法 |
| FR3084361A1 (fr) | 2018-07-25 | 2020-01-31 | IFP Energies Nouvelles | Procede de metathese des olefines utilisant un catalyseur contenant du silicium, du molybdene et du soufre |
| FR3084362A1 (fr) | 2018-07-25 | 2020-01-31 | IFP Energies Nouvelles | Procede de metathese des olefines utilisant un catalyseur contenant du silicium, du molybdene et un element alcalin |
| FR3084363B1 (fr) | 2018-07-25 | 2020-08-07 | Ifp Energies Now | Procede de metathese des olefines utilisant un catalyseur contenant du silicium, du molybdene et un element alcalin |
| FR3088338B1 (fr) | 2018-11-08 | 2021-10-29 | Ifp Energies Now | Procede de reformage en lit fixe utilisant un catalyseur de forme particuliere |
| FR3103192A1 (fr) | 2019-11-15 | 2021-05-21 | IFP Energies Nouvelles | Procede de metathese des olefines utilisant un catalyseur a haute teneur en alcalin contenant du silicium, du molybdene |
| US11691888B2 (en) | 2020-05-27 | 2023-07-04 | Scandium International Mining Corporation | Process for the preparation of high purity alumina |
| US20250368523A1 (en) * | 2022-05-30 | 2025-12-04 | China Petroleum & Chemical Corporation | Pseudo-boehmite and its preparation method, and a catalytic cracking catalyst containing the pseudo-boehmite, and its preparation and application |
| FR3156335A1 (fr) | 2023-12-06 | 2025-06-13 | Axens | Catalyseur de reformage catalytique ayant une acidite optimisee |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1258854B (de) * | 1963-05-11 | 1968-01-18 | Deutsche Erdoel Ag | Verfahren zur kontinuierlichen Herstellung von Alkoholen durch Hydrolyse von Aluminiumalkoxiden in einem homogenen System aus n-Butanol und Wasser |
| US3357791A (en) * | 1964-07-20 | 1967-12-12 | Continental Oil Co | Process for producing colloidal-size particles of alumina monohydrate |
| FR1483002A (fr) * | 1966-04-21 | 1967-06-02 | Pechiney Saint Gobain | Monohydrates d'aluminium de petite surface spécifique et leurs applications |
| US3714343A (en) * | 1967-06-26 | 1973-01-30 | Mitsubishi Chem Ind | Alumina hydrate,theta-alumina and a method for the manufacture thereof |
| US3836594A (en) * | 1969-11-27 | 1974-09-17 | R Sampson | Hydrocarbon conversion process and silica and/or alumina-containing catalyst therefor |
| SE332379B (OSRAM) * | 1970-04-01 | 1971-02-01 | Cold Bound Peliets Ab | |
| US3975231A (en) * | 1972-04-14 | 1976-08-17 | Continental Oil Company | Method for producing concentrated alumina slurries |
| DE2314350C3 (de) * | 1972-04-14 | 1978-05-03 | Continental Oil Co., Ponca City, Okla. (V.St.A.) | Verfahren zur Herstellung von freifließenden Aluminiumoxyd-Aufschlämmungen |
| US3898322A (en) * | 1972-12-15 | 1975-08-05 | Continental Oil Co | Alumina having a binodal pore volume distribution |
| US3966893A (en) * | 1974-12-02 | 1976-06-29 | Philadelphia Quartz Company | Precipitating α alumina monohydrate |
| US4224302A (en) * | 1975-09-16 | 1980-09-23 | Nippon Soken Inc. | Process for producing an alumina catalyst carrier |
| CA1069486A (en) * | 1975-11-10 | 1980-01-08 | Nalco Chemical Company | Method of preparing a controlled pore volume alumina with citric acid |
| DE2556804C3 (de) * | 1975-12-17 | 1981-02-26 | Condea Chemie Gmbh, 2212 Brunsbuettel | Verfahren, zur Herstellung von Tonerdeprodukten mit großer Oberfläche |
| US4175118A (en) * | 1975-12-17 | 1979-11-20 | Condea Chemie Gmbh | Method for manufacturing a high porous alumina having a large surface area and a low bulk density |
| US4098874A (en) * | 1977-04-18 | 1978-07-04 | Uop Inc. | Method of preparation of alumina catalyst support or carrier material |
| JPS5527830A (en) * | 1978-08-15 | 1980-02-28 | Chiyoda Chem Eng & Constr Co Ltd | Production of alumina carrier |
| CA1161331A (en) * | 1979-09-04 | 1984-01-31 | Richard K. Oberlander | Alumina dispersion behavior |
| JP5744605B2 (ja) | 2011-04-07 | 2015-07-08 | キヤノン株式会社 | 情報処理装置、情報処理方法 |
-
1988
- 1988-07-14 DE DE3823895A patent/DE3823895C1/de not_active Expired
-
1989
- 1989-04-13 NL NL8900924A patent/NL194792C/nl not_active IP Right Cessation
- 1989-04-13 IT IT8920124A patent/IT1230055B/it active
- 1989-04-24 BE BE8900454A patent/BE1001847A3/fr not_active IP Right Cessation
- 1989-05-16 GB GB8911178A patent/GB2220651B/en not_active Expired - Lifetime
- 1989-05-22 FR FR8906632A patent/FR2634194B1/fr not_active Expired - Lifetime
- 1989-06-02 US US07/360,311 patent/US5055019A/en not_active Expired - Lifetime
- 1989-07-14 JP JP1180639A patent/JPH0678164B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3823895C1 (OSRAM) | 1989-12-21 |
| IT8920124A0 (it) | 1989-04-13 |
| GB8911178D0 (en) | 1989-07-05 |
| FR2634194B1 (fr) | 1993-03-19 |
| FR2634194A1 (fr) | 1990-01-19 |
| JPH0678164B2 (ja) | 1994-10-05 |
| GB2220651B (en) | 1992-01-22 |
| GB2220651A (en) | 1990-01-17 |
| JPH0264010A (ja) | 1990-03-05 |
| US5055019A (en) | 1991-10-08 |
| NL8900924A (nl) | 1990-02-01 |
| NL194792B (nl) | 2002-11-01 |
| IT1230055B (it) | 1991-09-27 |
| BE1001847A3 (fr) | 1990-03-20 |
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