DE69506906D1 - Polymere mit langkettigen verweigungen und ihre herstellung - Google Patents
Polymere mit langkettigen verweigungen und ihre herstellungInfo
- Publication number
- DE69506906D1 DE69506906D1 DE69506906T DE69506906T DE69506906D1 DE 69506906 D1 DE69506906 D1 DE 69506906D1 DE 69506906 T DE69506906 T DE 69506906T DE 69506906 T DE69506906 T DE 69506906T DE 69506906 D1 DE69506906 D1 DE 69506906D1
- Authority
- DE
- Germany
- Prior art keywords
- polymers
- production
- long
- chain branches
- branches
- 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.)
- Revoked
Links
Classifications
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/642—Component covered by group C08F4/64 with an organo-aluminium compound
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/328,187 US6300451B1 (en) | 1994-10-24 | 1994-10-24 | Long-chain branched polymers and their production |
PCT/US1995/013643 WO1996012744A1 (en) | 1994-10-24 | 1995-10-24 | Long-chain branched polymers and their production |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69506906D1 true DE69506906D1 (de) | 1999-02-04 |
DE69506906T2 DE69506906T2 (de) | 1999-05-27 |
Family
ID=23279893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69506906T Revoked DE69506906T2 (de) | 1994-10-24 | 1995-10-24 | Polymere mit langkettigen verweigungen und ihre herstellung |
Country Status (13)
Country | Link |
---|---|
US (1) | US6300451B1 (de) |
EP (1) | EP0788521B1 (de) |
JP (1) | JPH10512600A (de) |
KR (1) | KR100358857B1 (de) |
CN (2) | CN1091774C (de) |
AU (1) | AU694812B2 (de) |
BR (1) | BR9509427A (de) |
CA (1) | CA2202402C (de) |
DE (1) | DE69506906T2 (de) |
ES (1) | ES2128786T3 (de) |
RU (1) | RU2165437C2 (de) |
TW (1) | TW422857B (de) |
WO (1) | WO1996012744A1 (de) |
Families Citing this family (92)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5773106A (en) * | 1994-10-21 | 1998-06-30 | The Dow Chemical Company | Polyolefin compositions exhibiting heat resistivity, low hexane-extractives and controlled modulus |
MX9800210A (es) * | 1995-06-29 | 1998-04-30 | Dsm Nv | Copolimero elastomerico. |
CA2190678A1 (en) | 1995-11-22 | 1997-05-23 | Robert Joseph Noel Bernier | Process for preparing elastomeric compounds from granular elastomers and polymers and articles manufactured therefrom |
US5814714A (en) * | 1995-11-30 | 1998-09-29 | The Dow Chemical Company | Mono-olefin/polyene interpolymers, method of preparation, compositions containing the same, and articles made thereof |
CA2192862A1 (en) * | 1995-12-15 | 1997-06-16 | Frederick John Karol | Process for the production of long-chain branched polyolefins |
NL1006421C2 (nl) * | 1997-06-27 | 1998-12-29 | Dsm Nv | Elastomeer copolymeer. |
EA002450B1 (ru) * | 1997-06-27 | 2002-04-25 | Дсм Н.В. | Эластомерный сополимер и способ его получения |
CN1124296C (zh) * | 1998-02-17 | 2003-10-15 | 埃克森美孚化学专利公司 | 乙烯共聚方法 |
US6294631B1 (en) * | 1998-12-15 | 2001-09-25 | Exxonmobil Chemical Patents Inc. | Hyperbranched polymers by coordination polymerization |
US6281316B1 (en) | 1999-03-22 | 2001-08-28 | Union Carbide Chemicals & Plastics Technology Corporation | Enhanced crosslinking terpolymer |
AU4847500A (en) * | 1999-05-14 | 2000-12-05 | Dupont Dow Elastomers L.L.C. | Highly crystalline eaodm interpolymers |
US7041617B2 (en) | 2004-01-09 | 2006-05-09 | Chevron Phillips Chemical Company, L.P. | Catalyst compositions and polyolefins for extrusion coating applications |
US6509431B1 (en) * | 2000-01-18 | 2003-01-21 | Exxonmobil Oil Corporation | Terpolymers |
EP1519967B2 (de) * | 2002-06-19 | 2013-08-21 | ExxonMobil Chemical Patents Inc. | Verfahren zur polymerisation von ethylen, höheren alpha-olefin-comonomeren und dienen, insbesondere vinyl norbornen und nach diesem verfahren hergestellte polymere |
US7807769B2 (en) | 2002-09-20 | 2010-10-05 | Exxonmobil Chemical Patents Inc. | Isotactic polypropylene produced from supercritical polymerization process |
US8008412B2 (en) | 2002-09-20 | 2011-08-30 | Exxonmobil Chemical Patents Inc. | Polymer production at supersolution conditions |
US7319125B2 (en) * | 2002-09-20 | 2008-01-15 | Exxonmobil Chemical Patents Inc. | Supercritical polymerization process and polymers produced therefrom |
US7700707B2 (en) | 2002-10-15 | 2010-04-20 | Exxonmobil Chemical Patents Inc. | Polyolefin adhesive compositions and articles made therefrom |
JP4972284B2 (ja) | 2002-10-15 | 2012-07-11 | エクソンモービル・ケミカル・パテンツ・インク | オレフィン重合のための複数触媒系及びそれらから生成されたポリマー |
CN1697845A (zh) * | 2003-01-23 | 2005-11-16 | 三井化学株式会社 | 乙烯/α-烯烃/非共轭多烯共聚物的制备方法和乙烯/α-烯烃/非共轭多烯共聚物 |
US20050209403A1 (en) * | 2003-12-09 | 2005-09-22 | Walton Kim L | Thermoplastic olefinic compositions |
US7906586B2 (en) * | 2003-12-09 | 2011-03-15 | Dow Global Technologies Llc | Thermoplastic olefinic compositions |
US7119153B2 (en) | 2004-01-21 | 2006-10-10 | Jensen Michael D | Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength |
EP1774485B1 (de) * | 2004-07-08 | 2016-05-04 | ExxonMobil Chemical Patents Inc. | Polymerproduktion unter superkritischen bedingungen |
WO2006019494A1 (en) | 2004-07-14 | 2006-02-23 | Exxonmobil Chemical Patents Inc. | Polymer production at supercritical conditions |
US8101697B2 (en) * | 2005-02-01 | 2012-01-24 | Bridgestone Corporation | Multi-functionalized high-trans elastomeric polymers |
DE602006005645D1 (de) * | 2005-05-12 | 2009-04-23 | Dow Global Technologies Inc | Thermogeformte und extrudierte folie mit reduziertem glanz |
EP1883658B2 (de) * | 2005-05-20 | 2016-01-27 | Bridgestone Corporation | Verfahren zur herstellung von niedermolekularen polymeren |
US8288480B2 (en) | 2005-06-22 | 2012-10-16 | Exxonmobil Chemical Patents Inc. | In-reactor polymer blends |
CN101429305B (zh) * | 2005-09-12 | 2012-09-26 | 陶氏环球技术有限责任公司 | 乙烯/α-烯烃组合物制备的汽车部件 |
US8557938B2 (en) | 2005-11-10 | 2013-10-15 | Arkema Inc. | Branched fluoropolymers |
US7517939B2 (en) | 2006-02-02 | 2009-04-14 | Chevron Phillips Chemical Company, Lp | Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching |
US7619047B2 (en) | 2006-02-22 | 2009-11-17 | Chevron Phillips Chemical Company, Lp | Dual metallocene catalysts for polymerization of bimodal polymers |
US7576163B2 (en) * | 2006-03-31 | 2009-08-18 | Chevron Phillips Chemical Company, Lp | Polymerization catalysts for producing polymers with low levels of long chain branching |
EP2078055B1 (de) | 2006-11-01 | 2017-11-22 | Dow Global Technologies LLC | Mischung und wässrige dispersion enthaltend unpolares polyolefin und polyurethan |
US8242237B2 (en) * | 2006-12-20 | 2012-08-14 | Exxonmobil Chemical Patents Inc. | Phase separator and monomer recycle for supercritical polymerization process |
US8143352B2 (en) * | 2006-12-20 | 2012-03-27 | Exxonmobil Research And Engineering Company | Process for fluid phase in-line blending of polymers |
CN101611088A (zh) * | 2006-12-21 | 2009-12-23 | 陶氏环球技术公司 | 填充的热塑性聚烯烃组合物、制备其的方法和由其制得的制品 |
US8080610B2 (en) | 2007-03-06 | 2011-12-20 | Exxonmobil Research And Engineering Company | Monomer recycle process for fluid phase in-line blending of polymers |
JP5404614B2 (ja) * | 2007-05-16 | 2014-02-05 | エルジー・ケム・リミテッド | 長鎖分岐を含むエチレン−α−オレフィン共重合体 |
ES2446294T3 (es) | 2007-06-04 | 2014-03-07 | Exxonmobil Chemical Patents Inc. | Polimerización de propileno en un sistema homogéneo en condiciones de superdisolución |
ATE513011T1 (de) * | 2007-09-07 | 2011-07-15 | Dow Global Technologies Llc | Gefüllte tpo-zusammensetzungen mit guter tieftemperaturduktilität |
US7910637B2 (en) * | 2007-09-13 | 2011-03-22 | Exxonmobil Research And Engineering Company | In-line blending of plasticizers with a base polymer |
WO2009035580A1 (en) * | 2007-09-13 | 2009-03-19 | Exxonmobil Research And Engineering Company | In-line process for producing plasticized polymers and plasticized polymer blends |
EP2209625B1 (de) | 2007-11-14 | 2019-03-20 | Dow Global Technologies LLC | Mehrschichtiger artikel |
CN101945942B (zh) * | 2007-12-20 | 2012-08-08 | 埃克森美孚研究工程公司 | 生产粒料稳定的聚烯烃的在线方法 |
EP2450403A1 (de) * | 2007-12-20 | 2012-05-09 | ExxonMobil Research and Engineering Company | Polypropylen-Ethylen-Propylen-Copolymer-Mischungen und Inline-Verfahren zu deren Herstellung |
US7910679B2 (en) * | 2007-12-20 | 2011-03-22 | Exxonmobil Research And Engineering Company | Bulk homogeneous polymerization process for ethylene propylene copolymers |
US8318875B2 (en) | 2008-01-18 | 2012-11-27 | Exxonmobil Chemical Patents Inc. | Super-solution homogeneous propylene polymerization and polypropylenes made therefrom |
JP2011524447A (ja) | 2008-06-18 | 2011-09-01 | ダウ グローバル テクノロジーズ エルエルシー | ポリマー組成物、該ポリマー組成物の作製方法及び該ポリマー組成物からの調製物 |
CN102458385A (zh) * | 2009-05-08 | 2012-05-16 | 3M创新有限公司 | 口腔护理方法和套件 |
EP2454318B1 (de) | 2009-07-15 | 2014-06-25 | Dow Global Technologies LLC | Polymerzusammensetzungen, verfahren zu ihrer herstellung und daraus hergestellte artikel |
JP5815758B2 (ja) | 2009-10-14 | 2015-11-17 | 株式会社ブリヂストン | 環状ジエンと非環状ジエンとの共重合体の製造方法、及びゴム組成物 |
US9458310B2 (en) | 2009-10-16 | 2016-10-04 | Exxonmobil Chemical Patents Inc. | Modified polyethylene film compositions |
US9340664B2 (en) | 2011-09-23 | 2016-05-17 | Exxonmobil Chemical Patents Inc. | Modified polyethylene compositions for blown film |
US9321911B2 (en) | 2011-09-23 | 2016-04-26 | Exxonmobil Chemical Patents Inc. | Modified polyethylene compositions for cast film |
US20130216812A1 (en) * | 2011-09-23 | 2013-08-22 | Exxonmobil Chemical Patents Inc. | Modified Polyethylene Compositions with Enhanced Melt Strength |
EP2758441B1 (de) | 2011-09-23 | 2016-10-26 | ExxonMobil Chemical Patents Inc. | Modifizierte polyethylenzusammensetzungen |
US20160272798A1 (en) * | 2011-09-23 | 2016-09-22 | Exxonmobil Chemical Patents Inc. | Modified Polyethylene Compositions with Enhanced Melt Strength |
US8629217B2 (en) | 2011-11-22 | 2014-01-14 | Exxonmobil Chemical Patents Inc. | Modified polyethylene blown film compositions having excellent bubble stability |
US10836853B2 (en) | 2012-09-20 | 2020-11-17 | Exxonmobil Chemical Patents Inc. | Crack-resistant polyethylene compositions |
US10822479B2 (en) * | 2012-09-20 | 2020-11-03 | Exxonmobil Chemical Patents Inc. | Foamed polyethylene compositions |
US9139726B2 (en) | 2012-10-09 | 2015-09-22 | Lion Copolymer Geismar, Llc | Process for making an ethylene elastomer with long chain branching for use in anti-vibration applications |
US8901236B2 (en) * | 2012-10-09 | 2014-12-02 | Lion Copolymer Geismar, Llc | Process for creating an ethylene elastomer |
US9139727B2 (en) | 2012-10-09 | 2015-09-22 | Lion Copolymer Geismar, Llc | Low damping high strength polymer with long chain branching for use in anti-vibration applications |
US8937139B2 (en) | 2012-10-25 | 2015-01-20 | Chevron Phillips Chemical Company Lp | Catalyst compositions and methods of making and using same |
US8895679B2 (en) | 2012-10-25 | 2014-11-25 | Chevron Phillips Chemical Company Lp | Catalyst compositions and methods of making and using same |
CN104812828B (zh) | 2012-12-05 | 2016-10-12 | 埃克森美孚化学专利公司 | 具有优异的膜泡稳定性的hdpe 改性聚乙烯吹塑膜组合物 |
US8877672B2 (en) | 2013-01-29 | 2014-11-04 | Chevron Phillips Chemical Company Lp | Catalyst compositions and methods of making and using same |
US9034991B2 (en) | 2013-01-29 | 2015-05-19 | Chevron Phillips Chemical Company Lp | Polymer compositions and methods of making and using same |
CN103304742B (zh) * | 2013-06-24 | 2015-04-15 | 苏州新区佳合塑胶有限公司 | 一种含有1,3-环己二烯的阻燃耐热塑胶 |
CN103304743B (zh) * | 2013-06-24 | 2015-04-29 | 苏州新区佳合塑胶有限公司 | 一种含有4-甲基-1-戊烯的阻燃耐热塑胶 |
JP6439280B2 (ja) * | 2013-08-09 | 2018-12-19 | 三菱ケミカル株式会社 | 熱可塑性エラストマー組成物の製造方法 |
US10184045B2 (en) | 2014-02-24 | 2019-01-22 | Dow Global Technologies Llc | Thermoplastic polyolefin with reduced gloss for non-carpeted flooring |
US10125247B2 (en) | 2014-05-29 | 2018-11-13 | Exxonmobil Chemical Patents Inc. | Polyethylene compositions |
US10124528B2 (en) | 2014-05-29 | 2018-11-13 | Exxonmobil Chemical Patents Inc. | Cyclic-diene additives in polyethylene films and enhanced film orientation balance in production thereof |
WO2015183578A1 (en) | 2014-05-29 | 2015-12-03 | Exxonmobil Chemical Patents Inc. | Polyethylene films and production of such films |
US11332552B2 (en) | 2016-05-20 | 2022-05-17 | Chevron Phillips Chemical Company Lp | Low pressure process for preparing low-density polyethylene |
CN109844012A (zh) | 2016-08-12 | 2019-06-04 | 陶氏环球技术有限责任公司 | 包括碳纤维和热塑性聚烯烃弹性体的基于丙烯的组合物 |
US9574034B1 (en) | 2016-08-12 | 2017-02-21 | Lion Copolymer Geismar, Llc | Process for making high molecular weight tetrapolymer and articles produced therefrom |
US9574035B1 (en) | 2016-08-12 | 2017-02-21 | Lion Copolymer Geismar, Llc | Process for making high molecular weight tetrapolymer and articles produced therefrom |
US9574033B1 (en) | 2016-08-12 | 2017-02-21 | Lion Copolymer Geismar, Llc | Process for continuously making high molecular weight tetrapolymer for use in anti-vibration applications |
CN110582536A (zh) | 2017-03-29 | 2019-12-17 | 埃克森美孚化学专利公司 | 聚乙烯组合物 |
US10550252B2 (en) * | 2017-04-20 | 2020-02-04 | Chevron Phillips Chemical Company Lp | Bimodal PE resins with improved melt strength |
US11041035B2 (en) | 2018-03-08 | 2021-06-22 | Exxonmobil Chemical Patents Inc. | Process to produce long-chain branched polyolefins using dienes |
EP3762475A1 (de) | 2018-03-08 | 2021-01-13 | ExxonMobil Chemical Patents Inc. | Ethylen-propylen-verzweigte copolymere als viskositätsmodifikatoren mit erhöhter kraftstoffeinsparung |
KR20210069661A (ko) * | 2018-09-28 | 2021-06-11 | 다우 글로벌 테크놀로지스 엘엘씨 | 4작용성 장쇄 분지형 에틸렌계 중합체 |
US10961331B2 (en) | 2018-12-19 | 2021-03-30 | Chevron Phillips Chemical Company Lp | Ethylene homopolymers with a reverse short chain branch distribution |
SG11202109432QA (en) * | 2019-03-29 | 2021-10-28 | Dow Global Technologies Llc | Process of polymerizing tri-functional long-chain branched olefin |
EP3947484A1 (de) * | 2019-03-29 | 2022-02-09 | Dow Global Technologies LLC | Trifunktionelles langkettiges verzweigtes polyolefin |
CN113614125B (zh) * | 2019-03-29 | 2024-02-13 | 陶氏环球技术有限责任公司 | 聚合三官能长链支化烯烃的方法 |
WO2023101936A1 (en) | 2021-11-30 | 2023-06-08 | Dow Global Technologies Llc | Soft thermoplastic olefins and products made therefrom |
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ATE164169T1 (de) | 1992-06-18 | 1998-04-15 | Montell Technology Company Bv | Verfahren zur herstellung eines ethylenischen copolymerisats |
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JPH08502303A (ja) | 1992-09-29 | 1996-03-12 | エクソン・ケミカル・パテンツ・インク | 長鎖分岐ポリマー及び長鎖分岐ポリマーを製造する方法 |
WO1994013175A1 (en) * | 1992-12-16 | 1994-06-23 | Paul Solomon | Door comprising recessed cabinet |
CA2110654C (en) | 1992-12-17 | 2006-03-21 | Albert Rossi | Dilute process for the polymerization of ethylene/alpha-olefin copolymer using metallocene catalyst systems |
US5410003A (en) * | 1994-03-31 | 1995-04-25 | Union Carbide Chemicals & Plastics Technology Corporation | Process for production of homogeneous polyethylenes |
US5552489A (en) * | 1994-07-22 | 1996-09-03 | Exxon Chemical Patents Inc. | Tackifiers and a process to obtain tackifiers |
JPH1054010A (ja) | 1997-06-06 | 1998-02-24 | Ohbayashi Corp | 鋼管・コンクリート複合構造橋脚 |
-
1994
- 1994-10-24 US US08/328,187 patent/US6300451B1/en not_active Expired - Fee Related
-
1995
- 1995-10-24 BR BR9509427A patent/BR9509427A/pt not_active IP Right Cessation
- 1995-10-24 EP EP95938287A patent/EP0788521B1/de not_active Revoked
- 1995-10-24 RU RU97108600/04A patent/RU2165437C2/ru not_active IP Right Cessation
- 1995-10-24 ES ES95938287T patent/ES2128786T3/es not_active Expired - Lifetime
- 1995-10-24 CA CA002202402A patent/CA2202402C/en not_active Expired - Fee Related
- 1995-10-24 KR KR1019970702672A patent/KR100358857B1/ko not_active IP Right Cessation
- 1995-10-24 WO PCT/US1995/013643 patent/WO1996012744A1/en not_active Application Discontinuation
- 1995-10-24 JP JP8514092A patent/JPH10512600A/ja active Pending
- 1995-10-24 DE DE69506906T patent/DE69506906T2/de not_active Revoked
- 1995-10-24 CN CN95195850A patent/CN1091774C/zh not_active Expired - Fee Related
- 1995-10-24 AU AU38970/95A patent/AU694812B2/en not_active Ceased
-
1996
- 1996-04-26 TW TW085105107A patent/TW422857B/zh not_active IP Right Cessation
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2001
- 2001-09-06 CN CNB011328118A patent/CN1204157C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2202402A1 (en) | 1996-05-02 |
JPH10512600A (ja) | 1998-12-02 |
TW422857B (en) | 2001-02-21 |
AU3897095A (en) | 1996-05-15 |
ES2128786T3 (es) | 1999-05-16 |
CA2202402C (en) | 2006-10-17 |
KR970707184A (ko) | 1997-12-01 |
EP0788521B1 (de) | 1998-12-23 |
KR100358857B1 (ko) | 2003-02-07 |
WO1996012744A1 (en) | 1996-05-02 |
EP0788521A1 (de) | 1997-08-13 |
BR9509427A (pt) | 1998-01-06 |
CN1341672A (zh) | 2002-03-27 |
CN1091774C (zh) | 2002-10-02 |
CN1161700A (zh) | 1997-10-08 |
CN1204157C (zh) | 2005-06-01 |
AU694812B2 (en) | 1998-07-30 |
RU2165437C2 (ru) | 2001-04-20 |
MX9702954A (es) | 1998-07-31 |
US6300451B1 (en) | 2001-10-09 |
DE69506906T2 (de) | 1999-05-27 |
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