DE69507058T2 - Vorrichtung zum Entfernen von Restmonomeren - Google Patents
Vorrichtung zum Entfernen von RestmonomerenInfo
- Publication number
- DE69507058T2 DE69507058T2 DE69507058T DE69507058T DE69507058T2 DE 69507058 T2 DE69507058 T2 DE 69507058T2 DE 69507058 T DE69507058 T DE 69507058T DE 69507058 T DE69507058 T DE 69507058T DE 69507058 T2 DE69507058 T2 DE 69507058T2
- Authority
- DE
- Germany
- Prior art keywords
- column
- pvc
- slurry
- residual monomers
- sieve
- 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
- 239000000178 monomer Substances 0.000 title claims description 79
- 239000002002 slurry Substances 0.000 claims description 151
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 25
- 238000005192 partition Methods 0.000 description 23
- 238000006116 polymerization reaction Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 239000000126 substance Substances 0.000 description 11
- 230000005587 bubbling Effects 0.000 description 8
- 239000012736 aqueous medium Substances 0.000 description 7
- 238000007720 emulsion polymerization reaction Methods 0.000 description 5
- 239000012467 final product Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 238000010557 suspension polymerization reaction Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- -1 alkyl vinyl ethers Chemical class 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 150000001733 carboxylic acid esters Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/12—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
- B01J8/125—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow with multiple sections one above the other separated by distribution aids, e.g. reaction and regeneration sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B63/00—Purification; Separation; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/001—Removal of residual monomers by physical means
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/24—Treatment of polymer suspensions
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/10—Organic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Polymerisation Methods In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03414994A JP3709568B2 (ja) | 1994-02-07 | 1994-02-07 | 残留モノマー除去処理法およびそれに用いる残留モノマー除去処理塔 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69507058D1 DE69507058D1 (de) | 1999-02-18 |
| DE69507058T2 true DE69507058T2 (de) | 1999-08-05 |
Family
ID=12406150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69507058T Expired - Fee Related DE69507058T2 (de) | 1994-02-07 | 1995-02-06 | Vorrichtung zum Entfernen von Restmonomeren |
Country Status (12)
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724012B2 (ja) * | 1995-08-04 | 2005-12-07 | チッソ株式会社 | 残留モノマー除去装置およびそれを用いる残留モノマー除去方法 |
| JP3978797B2 (ja) | 1996-12-26 | 2007-09-19 | チッソ株式会社 | 残留モノマー除去方法および装置 |
| CN1085106C (zh) * | 1998-11-12 | 2002-05-22 | 华东理工大学 | 反应物料逗留时间均布的尿素合成塔 |
| TW527368B (en) * | 1999-04-22 | 2003-04-11 | Chisso Corp | Device and method for removing unreacted monomer from polymer latex |
| US6830607B2 (en) * | 2001-06-15 | 2004-12-14 | Westlake Technology Corporation | Slurry tray and slurry tray assembly for use in fractionation towers |
| US20050205215A1 (en) * | 2004-03-17 | 2005-09-22 | General Electric Company | Apparatus for the evaporation of aqueous organic liquids and the production of powder pre-forms in flame hydrolysis processes |
| RU2443716C2 (ru) | 2006-06-01 | 2012-02-27 | Джон О. БАРНЕТТ | Способ и аппарат для минимизации отложений полимера на технологическом оборудовании, в частности на защитных устройствах |
| FR2967151B1 (fr) * | 2010-11-04 | 2014-05-23 | Solvay | Procede pour le traitement d'effluents aqueux provenant de la preparation d'un polymere halogene |
| FR2967153B1 (fr) * | 2010-11-04 | 2014-10-03 | Solvay | Procede pour le traitement d'eaux usees provenant de la preparation d'un polymere halogene |
| CN102092108A (zh) * | 2011-01-06 | 2011-06-15 | 金发科技股份有限公司 | 一种消减聚合物材料中低分子有机挥发物的方法 |
| CN103412486A (zh) * | 2013-07-23 | 2013-11-27 | 沈阳化工大学 | 一种聚氯乙烯汽提过程智能控制方法 |
| CN103724466A (zh) * | 2014-01-02 | 2014-04-16 | 新疆天业（集团）有限公司 | 悬浮法pvc浆料汽提脱析vcm的方法 |
| CN106414517B (zh) * | 2014-05-28 | 2019-08-09 | 株式会社Lg化学 | 汽提设备 |
| DE102015213493A1 (de) * | 2015-07-17 | 2016-09-15 | Basf Se | Kolonne zur thermischen Behandlung von fluiden Gemischen, insbesondere solchen, die (Meth)acrylmonomere enthalten |
| CN105294891A (zh) * | 2015-10-20 | 2016-02-03 | 天能化工有限公司 | 一种pvc生产中蒸汽汽提残留vcm的方法 |
| KR102068308B1 (ko) | 2016-09-23 | 2020-01-20 | 주식회사 엘지화학 | 고분자의 잔류 모노머 함량 제어방법 |
| BR112019013623B1 (pt) | 2017-01-11 | 2023-09-26 | Koch-Glitsch, Lp | Bandeja de contato com parede defletora para concentração de baixo fluxo de líquido e método envolvendo a mesma |
| KR102702865B1 (ko) | 2020-04-24 | 2024-09-05 | 주식회사 엘지화학 | 후처리 장치 |
| KR102691945B1 (ko) * | 2020-07-22 | 2024-08-06 | 한화솔루션 주식회사 | 잔류 모노머 제거장치 |
| KR102782581B1 (ko) | 2020-10-05 | 2025-03-14 | 주식회사 엘지화학 | 스트리핑 장치 및 스트리핑 방법 |
| KR102675022B1 (ko) * | 2021-01-20 | 2024-06-14 | 한화솔루션 주식회사 | 증류장치 |
| CN116173539B (zh) * | 2023-02-02 | 2025-07-11 | 石博士实验室(广州)有限责任公司 | 一种沸腾器及具有所述沸腾器的常压低温蒸馏系统 |
| CN117464874B (zh) * | 2023-11-27 | 2024-08-30 | 山东诺森塑胶有限公司 | 一种抗菌型色母料制备用烘干装置 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1919599A (en) * | 1929-10-17 | 1933-07-25 | Standard Oil Dev Co | Method for removing entrained liquid from gases and vapors |
| US2433060A (en) * | 1943-01-01 | 1947-12-23 | Standard Oil Dev Co | Process of stripping emulsion polymerizate latices |
| US2845444A (en) * | 1953-08-18 | 1958-07-29 | Procter & Gamble | Apparatus and method for steam deodorizing of fats and oils |
| US3249516A (en) * | 1962-05-15 | 1966-05-03 | Planex Associates Ltd | Fractional distillation column with inclined wall sections |
| GB1211547A (en) * | 1967-10-12 | 1970-11-11 | Fisons Ind Chemicals Ltd | Hydrazine |
| US4017355A (en) * | 1970-12-18 | 1977-04-12 | Nippon Oil Company Ltd. | Process for treating latices |
| US3844898A (en) * | 1973-01-02 | 1974-10-29 | Universal Oil Prod Co | Fractionation apparatus having plural, integral and concentric fractionating units |
| US3959085A (en) * | 1973-01-02 | 1976-05-25 | Universal Oil Products Company | Fractionation apparatus having two integral and concentric fractionating units |
| US4158092A (en) * | 1974-07-25 | 1979-06-12 | Hoechst Aktiengesellschaft | Process for the manufacture of vinyl chloride polymer dispersions with a low monomer content |
| US4086414A (en) * | 1974-08-19 | 1978-04-25 | Ethyl Corporation | Steam stripping polyvinyl chloride resins |
| US3975164A (en) * | 1975-02-05 | 1976-08-17 | Phillips Petroleum Company | Apparatus for purifying HF catalyst in an alkylation process |
| JPS5813563B2 (ja) * | 1976-04-03 | 1983-03-14 | 信越化学工業株式会社 | 塩化ビニルの水性分散液から未反応モノマ−を除去する方法およびその装置 |
| JPS548693A (en) * | 1977-06-21 | 1979-01-23 | Chisso Corp | Removal of monomer from vinyl chloride resin slurry by steam treatment using improved plate column |
| US4303479A (en) * | 1977-10-07 | 1981-12-01 | The Goodyear Tire & Rubber Company | Distillation separation method |
| DE2759097C2 (de) * | 1977-12-30 | 1987-03-05 | Norsk Hydro A.S., Oslo | Verfahren zur Reduktion des Vinylchloridgehaltes in wäßrigen Dispersionen von Vinylchloridpolymeren und -copolymeren |
| US4228273A (en) * | 1978-09-05 | 1980-10-14 | Tenneco Chemicals, Inc. | Process for the removal of vinyl chloride from aqueous dispersions of vinyl chloride resins |
| JPS5622305A (en) * | 1979-08-01 | 1981-03-02 | Chisso Corp | Monomer removal from vinyl chloride resin slurry by steaming and apparatus therefor |
| SU1348188A1 (ru) * | 1986-01-03 | 1987-10-30 | Предприятие П/Я Р-6956 | Аппарат дл выделени полимеров из растворов |
| JP3029075B2 (ja) * | 1992-09-25 | 2000-04-04 | チッソ株式会社 | 塩化ビニル樹脂スラリーの水蒸気処理による残留ビニルモノマー含有量の低い樹脂粉体の製造方法及びその装置 |
-
1994
- 1994-02-07 JP JP03414994A patent/JP3709568B2/ja not_active Expired - Lifetime
-
1995
- 1995-02-06 MY MYPI95000255A patent/MY115335A/en unknown
- 1995-02-06 DE DE69507058T patent/DE69507058T2/de not_active Expired - Fee Related
- 1995-02-06 EP EP95300722A patent/EP0668134B1/en not_active Expired - Lifetime
- 1995-02-06 SG SG1996004421A patent/SG55065A1/en unknown
- 1995-02-06 ES ES95300722T patent/ES2127991T3/es not_active Expired - Lifetime
- 1995-02-07 CN CN95102919A patent/CN1059376C/zh not_active Expired - Fee Related
- 1995-02-07 CA CA002141989A patent/CA2141989A1/en not_active Abandoned
- 1995-02-07 KR KR1019950002550A patent/KR100359391B1/ko not_active Expired - Fee Related
- 1995-02-07 US US08/385,110 patent/US6375793B1/en not_active Expired - Fee Related
- 1995-02-13 TW TW084101278A patent/TW297820B/zh active
-
1999
- 1999-02-12 GR GR990400478T patent/GR3029394T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0668134A3 (en) | 1996-01-03 |
| EP0668134B1 (en) | 1999-01-07 |
| MY115335A (en) | 2003-05-31 |
| US6375793B1 (en) | 2002-04-23 |
| KR950032318A (ko) | 1995-12-20 |
| KR100359391B1 (ko) | 2003-01-24 |
| DE69507058D1 (de) | 1999-02-18 |
| CN1112938A (zh) | 1995-12-06 |
| TW297820B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1997-02-11 |
| SG55065A1 (en) | 1998-12-21 |
| EP0668134A2 (en) | 1995-08-23 |
| JP3709568B2 (ja) | 2005-10-26 |
| JPH07224109A (ja) | 1995-08-22 |
| CA2141989A1 (en) | 1995-08-08 |
| GR3029394T3 (en) | 1999-05-28 |
| CN1059376C (zh) | 2000-12-13 |
| ES2127991T3 (es) | 1999-05-01 |
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