CA2113304A1 - Components and catalysts for the polymerization of ethylene - Google Patents
Components and catalysts for the polymerization of ethyleneInfo
- Publication number
- CA2113304A1 CA2113304A1 CA002113304A CA2113304A CA2113304A1 CA 2113304 A1 CA2113304 A1 CA 2113304A1 CA 002113304 A CA002113304 A CA 002113304A CA 2113304 A CA2113304 A CA 2113304A CA 2113304 A1 CA2113304 A1 CA 2113304A1
- Authority
- CA
- Canada
- Prior art keywords
- compound
- catalyst component
- ethylene
- alcoholate
- catalyst
- 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.)
- Abandoned
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 45
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000005977 Ethylene Substances 0.000 title claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 35
- 239000010936 titanium Substances 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 28
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 19
- 150000002367 halogens Chemical class 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000005843 halogen group Chemical group 0.000 claims abstract description 9
- 239000011949 solid catalyst Substances 0.000 claims abstract description 9
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 9
- 239000000460 chlorine Substances 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 7
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 5
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 5
- 229910052794 bromium Chemical group 0.000 claims abstract description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 5
- 150000004820 halides Chemical class 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 21
- -1 hydrocarbon radical Chemical class 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 230000001603 reducing effect Effects 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- 125000006736 (C6-C20) aryl group Chemical group 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 5
- 229910052723 transition metal Inorganic materials 0.000 claims description 5
- 150000003624 transition metals Chemical class 0.000 claims description 5
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012263 liquid product Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims 1
- 229910003074 TiCl4 Inorganic materials 0.000 claims 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims 1
- 239000004711 α-olefin Substances 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 description 20
- 239000000843 powder Substances 0.000 description 11
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000000748 compression moulding Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003801 milling Methods 0.000 description 5
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 230000002140 halogenating effect Effects 0.000 description 4
- 229920006158 high molecular weight polymer Polymers 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 150000003609 titanium compounds Chemical class 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000010076 replication Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 3
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 150000005840 aryl radicals Chemical class 0.000 description 2
- 229940125904 compound 1 Drugs 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000000877 morphologic effect Effects 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- 229920000548 poly(silane) polymer Polymers 0.000 description 2
- 150000004756 silanes Chemical class 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- 229910003822 SiHCl3 Inorganic materials 0.000 description 1
- OCBFFGCSTGGPSQ-UHFFFAOYSA-N [CH2]CC Chemical compound [CH2]CC OCBFFGCSTGGPSQ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001891 gel spinning Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 150000002681 magnesium compounds Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000011148 porous material Substances 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
- 239000012265 solid product Substances 0.000 description 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
-
- 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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/02—Ethene
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI93A000026 | 1993-01-13 | ||
| ITMI930026A IT1271425B (it) | 1993-01-13 | 1993-01-13 | Componenti e catalizzatori per la polimerizzazione di etilene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2113304A1 true CA2113304A1 (en) | 1994-07-14 |
Family
ID=11364616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002113304A Abandoned CA2113304A1 (en) | 1993-01-13 | 1994-01-12 | Components and catalysts for the polymerization of ethylene |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5500397A (ref) |
| EP (1) | EP0606908B1 (ref) |
| JP (1) | JP3401074B2 (ref) |
| KR (1) | KR100294786B1 (ref) |
| CN (1) | CN1032312C (ref) |
| BR (1) | BR9400090A (ref) |
| CA (1) | CA2113304A1 (ref) |
| DE (1) | DE69409133T2 (ref) |
| IT (1) | IT1271425B (ref) |
| TW (1) | TW268016B (ref) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6034186A (en) * | 1997-05-16 | 2000-03-07 | Phillips Petroleum Company | Olefin polymerization processes and products thereof |
| US5952423A (en) * | 1997-07-18 | 1999-09-14 | Baxter International Inc. | Plastic compositions for medical containers and methods for providing such containers and for storing red blood cells |
| US6468258B1 (en) | 1997-07-18 | 2002-10-22 | Baxter International Inc. | Plastic compositions including vitamin E for medical containers and methods for providing such compositions and containers |
| US6329476B1 (en) * | 1997-10-14 | 2001-12-11 | Phillips Petroleum Company | Olefin polymerization processes and products thereof |
| DE102005052444A1 (de) * | 2005-08-27 | 2007-03-01 | H.C. Starck Gmbh | Verfahren zur Herstellung hochreiner Zirkonium-, Hafnium-, Tantal- und Niobalkoxide |
| US20100222528A1 (en) * | 2007-08-29 | 2010-09-02 | Basell Poliolefine Italia S.R.L. | Catalyst for the polymerization of olefins |
| US20090163679A1 (en) * | 2007-12-19 | 2009-06-25 | Braskem S.A. | Suspension polymerization process for manufacturing ultra high molecular weight polyethylene, a multimodal ultra high molecular weight polyethylene homopolymeric or copolymeric composition, a ultra high molecular weight polyethylene, and their uses |
| MY180382A (en) * | 2014-09-04 | 2020-11-28 | Ptt Global Chemical Public Co Ltd | A method for preparing high activity ethylene polymerization catalyst |
| CN108794670B (zh) * | 2017-05-03 | 2020-11-06 | 中国石油天然气股份有限公司 | 改进的合成聚α-烯烃基础油的方法 |
| CN109206545B (zh) * | 2017-07-01 | 2021-07-02 | 中国石油化工股份有限公司 | 丙烯类聚合物微粒和用于烯烃聚合的固体催化剂组分及烯烃聚合催化剂 |
| US11214633B2 (en) | 2019-09-10 | 2022-01-04 | Braskem America, Inc. | Ziegler-Natta catalyst systems and methods of controlling particle size |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK154438C (da) * | 1975-06-12 | 1989-04-10 | Montedison Spa | Katalysatorbestanddel til en katalysator til polymerisation af alkener, fremgangsmaade til fremstilling af en saadan katalysatorbestanddel og anvendelse af en saadan katalysatorbestanddel |
| IT1197320B (it) * | 1986-10-02 | 1988-11-30 | Ausimont Spa | Catalizzatori per la preparazione di copolimeri olefinici elastomerici,saturi ed insaturi,e vopolimeri con essi ottenuti |
| JPH0717709B2 (ja) * | 1987-11-13 | 1995-03-01 | 日本石油株式会社 | 超高分子量ポリエチレンの製造方法 |
| IT1251796B (it) * | 1991-07-15 | 1995-05-26 | Himont Inc | Componenti e catalizzatori per la polimerizzazione di etilene |
-
1993
- 1993-01-13 IT ITMI930026A patent/IT1271425B/it active IP Right Grant
-
1994
- 1994-01-12 BR BR9400090A patent/BR9400090A/pt not_active IP Right Cessation
- 1994-01-12 CA CA002113304A patent/CA2113304A1/en not_active Abandoned
- 1994-01-13 EP EP94100437A patent/EP0606908B1/en not_active Expired - Lifetime
- 1994-01-13 CN CN94100820A patent/CN1032312C/zh not_active Expired - Fee Related
- 1994-01-13 DE DE69409133T patent/DE69409133T2/de not_active Expired - Fee Related
- 1994-01-13 KR KR1019940000491A patent/KR100294786B1/ko not_active Expired - Fee Related
- 1994-01-13 US US08/181,283 patent/US5500397A/en not_active Expired - Lifetime
- 1994-01-13 JP JP01481294A patent/JP3401074B2/ja not_active Expired - Fee Related
- 1994-03-31 TW TW083102812A patent/TW268016B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| EP0606908A1 (en) | 1994-07-20 |
| BR9400090A (pt) | 1994-08-16 |
| EP0606908B1 (en) | 1998-03-25 |
| ITMI930026A1 (it) | 1994-07-13 |
| DE69409133D1 (de) | 1998-04-30 |
| KR100294786B1 (ko) | 2001-09-17 |
| JP3401074B2 (ja) | 2003-04-28 |
| IT1271425B (it) | 1997-05-28 |
| ITMI930026A0 (it) | 1993-01-13 |
| CN1091433A (zh) | 1994-08-31 |
| TW268016B (ref) | 1996-01-11 |
| KR940018400A (ko) | 1994-08-16 |
| JPH07179515A (ja) | 1995-07-18 |
| DE69409133T2 (de) | 1998-10-01 |
| CN1032312C (zh) | 1996-07-17 |
| US5500397A (en) | 1996-03-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |