JP3875757B2 - 粒子状親水性重合体の分級方法およびふるい分け装置 - Google Patents
粒子状親水性重合体の分級方法およびふるい分け装置 Download PDFInfo
- Publication number
- JP3875757B2 JP3875757B2 JP01292797A JP1292797A JP3875757B2 JP 3875757 B2 JP3875757 B2 JP 3875757B2 JP 01292797 A JP01292797 A JP 01292797A JP 1292797 A JP1292797 A JP 1292797A JP 3875757 B2 JP3875757 B2 JP 3875757B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrophilic polymer
- sieving
- sieving device
- particulate
- temperature
- 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.)
- Expired - Fee Related
Links
- 238000007873 sieving Methods 0.000 title claims description 75
- 229920001477 hydrophilic polymer Polymers 0.000 title claims description 42
- 238000000034 method Methods 0.000 title claims description 16
- 239000002245 particle Substances 0.000 claims description 36
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 11
- 239000002250 absorbent Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 239000000017 hydrogel Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 description 18
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
- 229940048053 acrylate Drugs 0.000 description 6
- 239000012774 insulation material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 5
- -1 2-hydroxypropyl Chemical group 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010332 dry classification Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- AUZRCMMVHXRSGT-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid;prop-2-enamide Chemical compound NC(=O)C=C.CC(C)CS(O)(=O)=O AUZRCMMVHXRSGT-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- WOAMRAPSJUZQJV-UHFFFAOYSA-N 3-oxopent-4-ene-2-sulfonic acid Chemical compound OS(=O)(=O)C(C)C(=O)C=C WOAMRAPSJUZQJV-UHFFFAOYSA-N 0.000 description 1
- AEYSASDBPHWTGR-UHFFFAOYSA-N 4-oxohex-5-ene-3-sulfonic acid Chemical compound CCC(S(O)(=O)=O)C(=O)C=C AEYSASDBPHWTGR-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 241000264877 Hippospongia communis Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 241000219061 Rheum Species 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/56—Heated screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01292797A JP3875757B2 (ja) | 1997-01-27 | 1997-01-27 | 粒子状親水性重合体の分級方法およびふるい分け装置 |
| US09/009,458 US6164455A (en) | 1997-01-27 | 1998-01-20 | Process for classifying particulate hydrophilic polymer and sieving device |
| EP98101305A EP0855232B1 (en) | 1997-01-27 | 1998-01-26 | Process for classifying particulate hydrophilic polymer and sieving device |
| DE69809089T DE69809089T2 (de) | 1997-01-27 | 1998-01-26 | Verfahren zur Klasssifizierung von hydrophilen Polymerpartikeln und Siebvorrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01292797A JP3875757B2 (ja) | 1997-01-27 | 1997-01-27 | 粒子状親水性重合体の分級方法およびふるい分け装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH10202187A JPH10202187A (ja) | 1998-08-04 |
| JPH10202187A5 JPH10202187A5 (2) | 2004-12-16 |
| JP3875757B2 true JP3875757B2 (ja) | 2007-01-31 |
Family
ID=11818964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01292797A Expired - Fee Related JP3875757B2 (ja) | 1997-01-27 | 1997-01-27 | 粒子状親水性重合体の分級方法およびふるい分け装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6164455A (2) |
| EP (1) | EP0855232B1 (2) |
| JP (1) | JP3875757B2 (2) |
| DE (1) | DE69809089T2 (2) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4739534B2 (ja) * | 2000-01-20 | 2011-08-03 | 株式会社日本触媒 | 吸水性樹脂の取扱方法 |
| US6817557B2 (en) * | 2000-01-20 | 2004-11-16 | Nippon Shokubai Co., Ltd. | Process for transporting, storing, and producing a particulate water-absorbent resin |
| EP1130045B2 (en) | 2000-02-29 | 2015-10-28 | Nippon Shokubai Co., Ltd. | Process for producing a water-absorbent resin powder |
| US6716894B2 (en) | 2001-07-06 | 2004-04-06 | Nippon Shokubai Co., Ltd. | Water-absorbent resin powder and its production process and uses |
| DE102005001789A1 (de) * | 2005-01-13 | 2006-07-27 | Basf Ag | Verfahren zum Klassieren eines teilchenförmigen wasserabsorbierenden Harzes |
| JP5334080B2 (ja) * | 2006-05-29 | 2013-11-06 | 株式会社大貴 | 吸収体又は該吸収体を使用するシーツ |
| US20090261023A1 (en) | 2006-09-25 | 2009-10-22 | Basf Se | Method for the Classification of Water Absorbent Polymer Particles |
| EP2073943B2 (de) * | 2006-09-25 | 2020-09-02 | Basf Se | Verfahren zum klassieren wasserabsorbierender polymerpartikel |
| CN101516531B (zh) * | 2006-09-25 | 2014-05-21 | 巴斯夫欧洲公司 | 吸水性聚合物颗粒的分级方法 |
| US8307987B2 (en) | 2006-11-03 | 2012-11-13 | Emerging Acquisitions, Llc | Electrostatic material separator |
| SA08290542B1 (ar) | 2007-08-28 | 2012-11-14 | نيبون شوكوباي كو. ، ليمتد | طريقة لإنتاج راتنج ماص للماء |
| US8618432B2 (en) | 2007-12-18 | 2013-12-31 | Emerging Acquisitions, Llc | Separation system for recyclable material |
| EP2253657B1 (en) | 2008-03-13 | 2015-06-03 | Nippon Shokubai Co., Ltd. | Method for producing particulate water-absorbing agent composed principally of a water-absorbing resin |
| JP5390511B2 (ja) | 2008-04-11 | 2014-01-15 | 株式会社日本触媒 | 吸水性樹脂の表面処理方法および吸水性樹脂の製造方法 |
| CN102124039B (zh) | 2008-09-16 | 2013-04-24 | 株式会社日本触媒 | 吸水性树脂的制造方法和通液性提高方法 |
| US8608096B2 (en) | 2009-02-18 | 2013-12-17 | Basf Se | Method for the production of water-absorbing polymer particles |
| CN104974358B (zh) | 2009-03-31 | 2018-11-23 | 株式会社日本触媒 | 颗粒状吸水性树脂的制造方法 |
| JP5645924B2 (ja) * | 2009-04-30 | 2014-12-24 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 金属不純物を分離する方法 |
| US8336714B2 (en) * | 2009-05-14 | 2012-12-25 | Emerging Acquistions, LLC | Heating system for material processing screen |
| CN102414160B (zh) | 2009-05-15 | 2014-06-04 | 株式会社日本触媒 | 制备(甲基)丙烯酸的方法和结晶系统 |
| MY152961A (en) | 2009-05-15 | 2014-12-15 | Nippon Catalytic Chem Ind | Process for producing (meth)acrylic acid |
| CN102428065B (zh) | 2009-05-15 | 2014-02-26 | 株式会社日本触媒 | 制备(甲基)丙烯酸的方法 |
| WO2011034146A1 (ja) | 2009-09-16 | 2011-03-24 | 株式会社日本触媒 | 吸水性樹脂粉末の製造方法 |
| WO2011042468A2 (de) * | 2009-10-09 | 2011-04-14 | Basf Se | Verfahren zur nachbefeuchtung oberflächennachvernetzter wasserabsorbierender polymerpartikel |
| EP2535369B1 (en) | 2010-02-10 | 2021-03-24 | Nippon Shokubai Co., Ltd. | Process for producing water-absorbing resin powder |
| JP5632906B2 (ja) | 2010-03-12 | 2014-11-26 | 株式会社日本触媒 | 吸水性樹脂の製造方法 |
| WO2011115221A1 (ja) * | 2010-03-17 | 2011-09-22 | 株式会社日本触媒 | 吸水性樹脂の製造方法 |
| BR112012027406B1 (pt) | 2010-04-26 | 2021-02-09 | Nippon Shokubai Co., Ltd. | resina absorvedora de água tipo ácido poliacrílico (sal), material sanitário e método para produzir a referida resina |
| US20130043384A1 (en) | 2010-04-26 | 2013-02-21 | Nippon Shokubai Co., Ltd. | Polyacrylic acid (salt), polyacrylic acid (salt)-based water-absorbing resin, and process for producing same |
| EP2565219B1 (en) | 2010-04-27 | 2018-06-27 | Nippon Shokubai Co., Ltd. | Method for producing polyacrylic acid (salt)-based water absorbent resin powder |
| JP5722921B2 (ja) | 2011-01-28 | 2015-05-27 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水性樹脂粉末の製造方法 |
| US10493429B2 (en) | 2011-01-28 | 2019-12-03 | Nippon Shokubai Co., Ltd. | Method for producing polyacrylic acid (salt)-based water absorbent resin powder |
| EP2700667B1 (en) | 2011-04-20 | 2017-08-09 | Nippon Shokubai Co., Ltd. | Process and apparatus for producing water-absorbable resin of polyacrylic acid (salt) type |
| CN103946248B (zh) | 2011-11-16 | 2016-08-24 | 株式会社日本触媒 | 聚丙烯酸(盐)系吸水性树脂的制造方法 |
| KR102125105B1 (ko) | 2012-08-01 | 2020-06-19 | 가부시키가이샤 닛폰 쇼쿠바이 | 폴리아크릴산(염)계 흡수성 수지의 제조 방법 |
| KR20150090067A (ko) | 2012-11-27 | 2015-08-05 | 가부시키가이샤 닛폰 쇼쿠바이 | 폴리아크릴산(염)계 흡수성 수지의 제조 방법 |
| WO2015046604A1 (ja) | 2013-09-30 | 2015-04-02 | 株式会社日本触媒 | 粒子状吸水剤の充填方法および粒子状吸水剤充填物のサンプリング方法 |
| JP6577572B2 (ja) * | 2015-04-02 | 2019-09-18 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水性樹脂を主成分とする粒子状吸水剤の製造方法 |
| WO2017207330A1 (de) | 2016-05-31 | 2017-12-07 | Basf Se | Verfahren zur herstellung von superabsorbern |
| US11883848B2 (en) | 2017-07-31 | 2024-01-30 | Basf Se | Classification process for superabsorbent polymer particles |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1010522A (fr) * | 1948-09-06 | 1952-06-12 | Procédé de criblage ou de tamisage direct de matières humides et appareillage appliquant ce procédé | |
| US2868378A (en) * | 1952-11-03 | 1959-01-13 | Longwy Acieries | Electrically heated screens |
| US2850163A (en) * | 1954-02-23 | 1958-09-02 | Link Belt Co | Electrically heated vibrating screen |
| US2866551A (en) * | 1954-05-24 | 1958-12-30 | Schlebusch Ludwig | Induction influenced screening apparatus |
| US2808152A (en) * | 1956-01-04 | 1957-10-01 | Marble Cliff Quarries Company | Terminal construction for electrically heated screens of material separators |
| US2984357A (en) * | 1957-04-08 | 1961-05-16 | Kufferath Josef | Electrically heated screen for separating coarser material from accompanying fines |
| US3760941A (en) * | 1971-05-04 | 1973-09-25 | Kali & Salz Ag | Process for preparing highly free flowing rock or table salt |
| US3831290A (en) * | 1971-11-11 | 1974-08-27 | Monsanto Co | Method and apparatus for processing high nitrile polymers |
| JP2745703B2 (ja) * | 1989-07-26 | 1998-04-28 | 東亞合成株式会社 | 吸水性ポリマーの製造方法 |
| JPH03170323A (ja) * | 1989-11-29 | 1991-07-23 | Sakito Seien Kk | 乾燥分級方法および装置 |
| US5061735A (en) * | 1990-08-15 | 1991-10-29 | Plastic Recovery Systems, Inc. | Process for the separation of plastics |
| DE4127572C1 (2) * | 1991-08-21 | 1993-03-11 | Kali Und Salz Ag, 3500 Kassel, De | |
| US5398816A (en) * | 1993-07-20 | 1995-03-21 | Sweco, Incorporated | Fine mesh screening |
-
1997
- 1997-01-27 JP JP01292797A patent/JP3875757B2/ja not_active Expired - Fee Related
-
1998
- 1998-01-20 US US09/009,458 patent/US6164455A/en not_active Expired - Lifetime
- 1998-01-26 DE DE69809089T patent/DE69809089T2/de not_active Revoked
- 1998-01-26 EP EP98101305A patent/EP0855232B1/en not_active Revoked
Also Published As
| Publication number | Publication date |
|---|---|
| EP0855232A3 (en) | 1999-06-30 |
| EP0855232B1 (en) | 2002-11-06 |
| JPH10202187A (ja) | 1998-08-04 |
| DE69809089T2 (de) | 2003-06-18 |
| DE69809089D1 (de) | 2002-12-12 |
| EP0855232A2 (en) | 1998-07-29 |
| US6164455A (en) | 2000-12-26 |
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