JPH10152501A - 湿潤したセルロースエーテルを含有する被粉砕材料を同時に粉砕および乾燥する方法および装置 - Google Patents
湿潤したセルロースエーテルを含有する被粉砕材料を同時に粉砕および乾燥する方法および装置Info
- Publication number
- JPH10152501A JPH10152501A JP9276155A JP27615597A JPH10152501A JP H10152501 A JPH10152501 A JP H10152501A JP 9276155 A JP9276155 A JP 9276155A JP 27615597 A JP27615597 A JP 27615597A JP H10152501 A JPH10152501 A JP H10152501A
- Authority
- JP
- Japan
- Prior art keywords
- gas stream
- conduit
- gas
- mill
- partial
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 63
- 229920003086 cellulose ether Polymers 0.000 title claims abstract description 23
- 238000001035 drying Methods 0.000 title claims abstract description 12
- 238000010298 pulverizing process Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 42
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 135
- 238000000227 grinding Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 4
- 238000009736 wetting Methods 0.000 claims description 3
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- 235000010944 ethyl methyl cellulose Nutrition 0.000 claims description 2
- -1 hydroxypropyl Chemical group 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 229920003087 methylethyl cellulose Polymers 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000032258 transport Effects 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 240000006829 Ficus sundaica Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
- F26B1/005—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
- B02C13/08—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and acting as a fan
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/288—Ventilating, or influencing air circulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
- B02C2013/2825—Shape or inner surface of mill-housings with fastening means for fixing lining members to the inner surface of mill-housings
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Crushing And Pulverization Processes (AREA)
- Drying Of Solid Materials (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19641781:3 | 1996-10-10 | ||
| DE19641781A DE19641781A1 (de) | 1996-10-10 | 1996-10-10 | Verfahren und Vorrichtung zum gleichzeitigen Mahlen und Trocknen eines feuchten Celluloseether enthaltenden Mahlgutes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10152501A true JPH10152501A (ja) | 1998-06-09 |
| JPH10152501A5 JPH10152501A5 (enExample) | 2005-04-07 |
Family
ID=7808369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9276155A Withdrawn JPH10152501A (ja) | 1996-10-10 | 1997-10-08 | 湿潤したセルロースエーテルを含有する被粉砕材料を同時に粉砕および乾燥する方法および装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US5921479A (enExample) |
| EP (1) | EP0835882B1 (enExample) |
| JP (1) | JPH10152501A (enExample) |
| DE (2) | DE19641781A1 (enExample) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241401A (ja) * | 2001-02-22 | 2002-08-28 | Daicel Chem Ind Ltd | 水溶性セルロースエーテルの乾燥工程における粉綿回収システム |
| WO2013015132A1 (ja) * | 2011-07-25 | 2013-01-31 | 花王株式会社 | 粉砕物の製造方法、並びに、振動粉砕機 |
| KR20130058054A (ko) | 2010-08-25 | 2013-06-03 | 도요타지도샤가부시키가이샤 | 전지용 전극의 제조 방법 |
| JP2014510185A (ja) * | 2011-04-06 | 2014-04-24 | ダウ グローバル テクノロジーズ エルエルシー | 高い嵩密度、良好な流動性及び改善された冷水分散性を有するセルロース誘導体の製造方法。 |
| JP2015530443A (ja) * | 2012-09-25 | 2015-10-15 | ダウ グローバル テクノロジーズ エルエルシー | 冷水中で高い嵩密度、良好な流動性、および／または分散性、ならびに低い溶液色を有するセルロース誘導体の製造方法 |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19823563A1 (de) * | 1998-05-27 | 1999-12-02 | Altenburger Masch Gmbh | Mahltrocknung von Zellulose-Derivaten, insbesondere Methl-Zellulose |
| DE19836323C2 (de) * | 1998-08-11 | 2000-11-23 | Loesche Gmbh | Mahlanlage, Anlage zur Herstellung von Zement und Verfahren zur Vermahlung von Rohmaterialien |
| US6261218B1 (en) * | 1998-12-01 | 2001-07-17 | The Dow Chemical Company | Process and apparatus for making low molecular weight cellulose ethers |
| DE19943518B4 (de) * | 1999-09-11 | 2004-08-05 | Teller, Bernd | Zerkleinerungsmaschine |
| US6540165B1 (en) * | 1999-09-24 | 2003-04-01 | Union Carbide Chemicals & Plastics Technology Corporation | Process for handling particulate material at elevated pressure |
| DE10009409A1 (de) | 2000-02-28 | 2001-08-30 | Wolff Walsrode Ag | Verfahren zur Herstellung von pulverförmigen wasserlöslichen Cellulosederivaten |
| DE10101464C2 (de) * | 2001-01-12 | 2003-03-06 | Babcock Bsh Gmbh | Anlage zur Herstellung von Puderzucker aus Kristallzucker oder invertiertem Zucker |
| DE10152991A1 (de) * | 2001-10-26 | 2003-05-08 | Wolff Walsrode Ag | Verfahren und Vorrichtung zur Mahltrocknung |
| AUPS236102A0 (en) * | 2002-05-16 | 2002-06-13 | Aimbridge Pty Ltd | Grinder |
| WO2003106103A1 (en) * | 2002-06-14 | 2003-12-24 | Ellis Enz Splits, Llc. | Spiked plate and hand tool for removal |
| CH694267A5 (de) * | 2004-03-15 | 2004-10-29 | Alb Lehmann Lindmuehle Ag | Verfahren und Vorrichtung zur Herstellung eines Mehles. |
| DE102004020686B3 (de) | 2004-04-28 | 2006-01-05 | Se Tylose Gmbh & Co. Kg | Verfahren und Vorrichtung zur Mahlung von Cellulose |
| BRPI0608962A2 (pt) * | 2005-05-12 | 2010-02-17 | Akzo Nobel Nv | processo para a trituração de éter de celulose |
| EP1960109B1 (de) * | 2005-12-09 | 2018-04-11 | swissRTec AG | Stator einer prallmühle |
| DE102006057188A1 (de) * | 2006-12-05 | 2008-06-12 | Dow Wolff Cellulosics Gmbh | Celluloseether für Feststoffformulierungen |
| EP2143554A1 (de) * | 2008-07-10 | 2010-01-13 | Amandus Kahl GmbH & Co. KG | Verfahren zum Aufschluss von Lignozellulosen zu Faserstoffen |
| DE202008012894U1 (de) * | 2008-09-29 | 2009-12-24 | Gotic Gmbh | Wirbelstrommühle |
| DE102010018046A1 (de) | 2010-04-23 | 2011-10-27 | Loesche Gmbh | Verfahren zur Vermahlung von Mahlgut |
| EP2694035B1 (en) | 2011-04-06 | 2024-11-06 | Nutrition & Biosciences USA 1, LLC | Process for producing cellulose derivatives of high bulk density and good flowability |
| RU2473390C1 (ru) * | 2011-08-17 | 2013-01-27 | Закрытое Акционерное Общество "Твин Трейдинг Компани" | Мельница "трибос" |
| JP2015522416A (ja) * | 2012-07-23 | 2015-08-06 | パネル ボード ホールディング ビーヴィ | 装置 |
| SE538243C2 (sv) | 2012-11-09 | 2016-04-12 | Stora Enso Oyj | Förfarande för att bilda och därefter torka ett kompositmaterial innefattande en mikrofibrillerad cellulosa |
| FR3023187B1 (fr) * | 2014-07-01 | 2019-07-12 | Broyeur Poittemill Ingenierie | Procede et dispositif pour le sechage et le broyage de materiaux humides |
| SI3229968T1 (sl) * | 2014-12-09 | 2022-04-29 | Frewitt Fabrique De Machines S.A. | Sistem in postopek za vakuumsko mletje |
| CN105014087A (zh) * | 2015-07-01 | 2015-11-04 | 苏州市新纶喷丝组件厂 | 金属砂制备设备及制备工艺 |
| AT517756B1 (de) * | 2015-09-22 | 2017-11-15 | Next Generation Recyclingmaschinen Gmbh | Vorrichtung und Verfahren zur Verarbeitung von thermoplastischem Kunststoff mit einer Blasvorrichtung für eine Transportschnecke |
| CN105841470B (zh) * | 2016-05-27 | 2018-02-06 | 镇江高海生物药业有限公司 | 一种气流干燥系统 |
| CN105865189B (zh) * | 2016-05-27 | 2018-04-03 | 镇江高海生物药业有限公司 | 一种用于氯代土霉素的气流干燥系统 |
| US10655851B2 (en) | 2016-12-02 | 2020-05-19 | General Electric Technology Gmbh | System and method for preheating a beater mill |
| CN107166421B (zh) * | 2017-06-28 | 2023-09-26 | 北京石油化工工程有限公司 | 一种煤粉制备系统及方法 |
| EP3866617B1 (en) * | 2018-10-19 | 2023-12-20 | Evolution Industries IP Pty Ltd | Method and device for drying plant material |
| TWM589589U (zh) * | 2019-08-20 | 2020-01-21 | 蕭智遠 | 流體機動效應之物質乾式奈米化處理設備 |
| CN113908965A (zh) * | 2021-11-16 | 2022-01-11 | 泸州北方纤维素有限公司 | 乙基纤维素粉碎烘干方法及系统 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE952264C (de) * | 1952-04-06 | 1956-11-15 | Henkel & Cie Gmbh | Verfahren zur UEberfuehrung feuchter, faseriger Methylcellulosen in Pulver von hoherLoesungsgeschwindigkeit |
| DE1454824A1 (de) * | 1965-06-15 | 1969-07-17 | Kalle Ag | Verfahren zur Herstellung von Granulaten oder Pulvern aus faserigen trockenen Celluloseaethern |
| DE2410789C2 (de) * | 1974-03-07 | 1980-08-07 | Hoechst Ag, 6000 Frankfurt | Verfahren zum Kaltmahlen von Cellulosederivaten |
| US4076935A (en) * | 1974-12-13 | 1978-02-28 | Hoechst Aktiengesellschaft | Grinding method for cellulose |
| DE2558821A1 (de) * | 1975-12-27 | 1977-07-07 | Peter Volker Dipl In Grosskopf | Kaeltemaschine in flacher blockbauweise |
| DE3032778A1 (de) * | 1980-08-30 | 1982-04-22 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur kontinuierlichen homogenisierung und pelletisierung von celluloserohaethern |
| DE3038001A1 (de) * | 1980-10-08 | 1982-05-06 | Henkel KGaA, 4000 Düsseldorf | Verfahren zur herstellung von mikropulvern aus celluloseether oder cellulose |
| US4465556A (en) * | 1981-07-16 | 1984-08-14 | American Carbons, Inc. | Pyrolysis system with hot gas recirculation |
| EP0112022A3 (en) * | 1982-12-16 | 1986-09-03 | F.L. Smidth & Co. A/S | Method of and plant for grinding pulverulent or granular materials |
| US4526678A (en) * | 1983-06-22 | 1985-07-02 | Elkem Chemicals, Inc. | Apparatus and method for separating large from small particles suspended in a gas stream |
| US4824031A (en) * | 1985-01-31 | 1989-04-25 | Microfuel Corporation | Means of pneumatic comminution |
| US4885067A (en) * | 1987-08-31 | 1989-12-05 | Santa Barbara Research Center | In-situ generation of volatile compounds for chemical vapor deposition |
| DE3839831A1 (de) * | 1988-11-25 | 1990-05-31 | Hoechst Ag | Verfahren und vorrichtung zur produktschonenden mahlung und gleichzeitigen trocknung von feuchten celluloseethern |
| US5251826A (en) * | 1992-03-13 | 1993-10-12 | Pennsylvania Crusher Corporation | Tumbling media mill and control system |
-
1996
- 1996-10-10 DE DE19641781A patent/DE19641781A1/de not_active Withdrawn
-
1997
- 1997-10-06 DE DE59707634T patent/DE59707634D1/de not_active Expired - Lifetime
- 1997-10-06 EP EP97117267A patent/EP0835882B1/de not_active Expired - Lifetime
- 1997-10-07 US US08/946,419 patent/US5921479A/en not_active Expired - Lifetime
- 1997-10-08 JP JP9276155A patent/JPH10152501A/ja not_active Withdrawn
-
1999
- 1999-05-10 US US09/309,152 patent/US6021966A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241401A (ja) * | 2001-02-22 | 2002-08-28 | Daicel Chem Ind Ltd | 水溶性セルロースエーテルの乾燥工程における粉綿回収システム |
| KR20130058054A (ko) | 2010-08-25 | 2013-06-03 | 도요타지도샤가부시키가이샤 | 전지용 전극의 제조 방법 |
| US8900747B2 (en) | 2010-08-25 | 2014-12-02 | Toyota Jidosha Kabushiki Kaisha | Method for producing battery electrode |
| JP2014510185A (ja) * | 2011-04-06 | 2014-04-24 | ダウ グローバル テクノロジーズ エルエルシー | 高い嵩密度、良好な流動性及び改善された冷水分散性を有するセルロース誘導体の製造方法。 |
| WO2013015132A1 (ja) * | 2011-07-25 | 2013-01-31 | 花王株式会社 | 粉砕物の製造方法、並びに、振動粉砕機 |
| US9724702B2 (en) | 2011-07-25 | 2017-08-08 | Kao Corporation | Method for manufacturing pulverized material and vibrating pulverizer |
| JP2015530443A (ja) * | 2012-09-25 | 2015-10-15 | ダウ グローバル テクノロジーズ エルエルシー | 冷水中で高い嵩密度、良好な流動性、および／または分散性、ならびに低い溶液色を有するセルロース誘導体の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US6021966A (en) | 2000-02-08 |
| EP0835882A2 (de) | 1998-04-15 |
| EP0835882A3 (de) | 1998-05-20 |
| US5921479A (en) | 1999-07-13 |
| DE19641781A1 (de) | 1998-04-16 |
| EP0835882B1 (de) | 2002-07-03 |
| DE59707634D1 (de) | 2002-08-08 |
| MX9707797A (es) | 1998-08-30 |
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