MX166813B - Procedimiento para la preparacion de 1,1,1-trifluorodicloroetano y 1,1,1,2-tetrafluorocloroetano - Google Patents
Procedimiento para la preparacion de 1,1,1-trifluorodicloroetano y 1,1,1,2-tetrafluorocloroetanoInfo
- Publication number
- MX166813B MX166813B MX012191A MX1219188A MX166813B MX 166813 B MX166813 B MX 166813B MX 012191 A MX012191 A MX 012191A MX 1219188 A MX1219188 A MX 1219188A MX 166813 B MX166813 B MX 166813B
- Authority
- MX
- Mexico
- Prior art keywords
- metal
- preparation
- content
- tetrahaloethylene
- degrees
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000011737 fluorine Substances 0.000 abstract 2
- 229910052731 fluorine Inorganic materials 0.000 abstract 2
- BOUGCJDAQLKBQH-UHFFFAOYSA-N 1-chloro-1,2,2,2-tetrafluoroethane Chemical compound FC(Cl)C(F)(F)F BOUGCJDAQLKBQH-UHFFFAOYSA-N 0.000 abstract 1
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000003682 fluorination reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/07—Preparation of halogenated hydrocarbons by addition of hydrogen halides
- C07C17/087—Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated halogenated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
- C07C17/21—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms with simultaneous increase of the number of halogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/070,826 US4766260A (en) | 1987-07-07 | 1987-07-07 | Gas-phase fluorination process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX166813B true MX166813B (es) | 1993-02-08 |
Family
ID=22097611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX012191A MX166813B (es) | 1987-07-07 | 1988-07-07 | Procedimiento para la preparacion de 1,1,1-trifluorodicloroetano y 1,1,1,2-tetrafluorocloroetano |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4766260A (en, 2012) |
| EP (1) | EP0298662B2 (en, 2012) |
| JP (1) | JP2578923B2 (en, 2012) |
| KR (1) | KR890001916A (en, 2012) |
| CN (1) | CN1014404B (en, 2012) |
| AR (1) | AR244651A1 (en, 2012) |
| AT (1) | ATE73748T1 (en, 2012) |
| AU (1) | AU600212B2 (en, 2012) |
| BR (1) | BR8803356A (en, 2012) |
| CA (1) | CA1308743C (en, 2012) |
| DE (1) | DE3869242D1 (en, 2012) |
| ES (1) | ES2033432T3 (en, 2012) |
| GR (1) | GR3004106T3 (en, 2012) |
| HK (1) | HK56792A (en, 2012) |
| MX (1) | MX166813B (en, 2012) |
| RU (1) | RU1799375C (en, 2012) |
| SG (1) | SG54092G (en, 2012) |
| ZA (1) | ZA884845B (en, 2012) |
Families Citing this family (64)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008475A (en) * | 1987-07-07 | 1991-04-16 | E. I. Du Pont De Nemours And Company | Gas-phase fluorination process |
| JPH01108292A (ja) * | 1987-10-19 | 1989-04-25 | Daikin Ind Ltd | 冷媒 |
| US4843181A (en) * | 1987-10-22 | 1989-06-27 | E. I. Du Pont De Nemours And Company | Process for the manufacture of 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethane |
| IN170774B (en, 2012) * | 1988-05-23 | 1992-05-16 | Du Pont | |
| EP0420916B1 (en) * | 1988-06-23 | 1993-09-29 | E.I. Du Pont De Nemours And Company | Catalyzed hydrofluorination process |
| US5094773A (en) * | 1988-08-01 | 1992-03-10 | E. I. Du Pont De Nemours And Company | Azeotropes of HF and process for the separation of HF via azeotropic distillation |
| ES2046492T3 (es) * | 1988-10-25 | 1994-02-01 | E.I. Du Pont De Nemours And Company | Procedimiento mejorado para la preparacion de 1,1,1,2-tetrafluoroetano. |
| GB8828544D0 (en) * | 1988-12-07 | 1989-01-11 | Ici Plc | Chemical process |
| IT1230780B (it) * | 1989-07-12 | 1991-10-29 | Ausimont Srl | Procedimento per la preparazione di 1,2 dicloro 1,1,2 trifluoroetano. |
| IT1230779B (it) * | 1989-07-12 | 1991-10-29 | Ausimont Srl | Procedimento per preparare 1,1,1,2 tetrafluoroetano. |
| AU6647690A (en) | 1989-10-04 | 1991-04-28 | E.I. Du Pont De Nemours And Company | Fluorocarbon purification process |
| US5171901A (en) * | 1990-02-14 | 1992-12-15 | Bayer Aktiengesellschaft | Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropane |
| FR2661906B1 (fr) * | 1990-05-11 | 1993-10-01 | Atochem | Procede de fabrication du 1,1,1,2-tetrafluoro-chloroethane et du pentafluoroethane. |
| US5030372A (en) * | 1990-07-31 | 1991-07-09 | E. I. Du Pont De Nemours And Company | Catalytic equilibration to improve the relative yield of selected halocarbons |
| EP0541559A1 (en) | 1990-07-31 | 1993-05-19 | E.I. Du Pont De Nemours And Company | Catalytic equilibration of selected halocarbons |
| US5300711A (en) * | 1991-03-20 | 1994-04-05 | E. I. Du Pont De Nemours And Company | Process for the manufacture of 2,2-dichloro-1,1,1-trifluoroethane, 2-chloro-1,1,1,2-tetrafluoroethane and pentafluoroethane |
| US5321170A (en) * | 1991-03-20 | 1994-06-14 | E. I. Du Pont De Nemours And Company | Process for the manufacture of 1,1,1,2-tetrafluoroethane |
| US5300710A (en) * | 1991-03-20 | 1994-04-05 | E. I. Du Pont De Nemours And Company | Process for the manufacture of 2-chloro-1,1,1,2-tetrafluoroethane and pentafluoroethane |
| EP0576613B1 (en) * | 1991-03-20 | 1996-08-14 | E.I. Du Pont De Nemours And Company | Process for the manufacture of 2-chloro-1,1,1-trifluoroethane |
| JP2748720B2 (ja) * | 1991-05-23 | 1998-05-13 | ダイキン工業株式会社 | ハロゲン化炭化水素のフッ素化方法 |
| US5243106A (en) * | 1991-06-03 | 1993-09-07 | E. I. Du Pont De Nemours And Company | Processes using aluminum fluoride catalyst compositions for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane |
| US5243108A (en) * | 1991-06-03 | 1993-09-07 | E. I. Du Pont De Nemours And Company | Aluminum fluoride catalyst compositions and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane |
| IT1251951B (it) * | 1991-10-18 | 1995-05-27 | Ausimont Spa | Procedimento per purificare 1,1,1-trifluoro-,2,2 dicloroetano dall`isomero 1,1,2-trifluoro-1,2-dicloroetano. |
| IT1251957B (it) * | 1991-10-18 | 1995-05-27 | Ausimont Spa | Procedimento per isomerizzare 1,1,2-trifluoro-1,2-dicloroetano a 1,1,1- trifluoro-2,2,-dicloroetano |
| US5334785A (en) * | 1991-10-25 | 1994-08-02 | Allied-Signal Inc. | Process for the manufacture of 1,1,1,2-tetrafluoroethane |
| JP2661441B2 (ja) * | 1991-11-27 | 1997-10-08 | ダイキン工業株式会社 | 1,1,1−トリフルオロ−2−クロロエタンおよび/または1,1,1,2−テトラフルオロエタンの製法 |
| JPH05194287A (ja) * | 1992-01-13 | 1993-08-03 | Daikin Ind Ltd | ハロゲン化ブテンおよびブタンの製造方法 |
| JP3369604B2 (ja) * | 1992-09-04 | 2003-01-20 | ダイキン工業株式会社 | 1,1,1,2,3,3−ヘキサフルオロプロパンの製造方法及びテトラフルオロクロロプロペンの製造方法 |
| US5345017A (en) * | 1992-12-08 | 1994-09-06 | E. I. Du Pont De Nemours And Company | Process for reducing the fluorine content of halocarbons |
| US5523498A (en) * | 1992-12-08 | 1996-06-04 | E. I. Du Pont De Nemours And Company | Process for reducing the fluorine content of hydrofluorocarbons and hydrohalofluorocarbons |
| FR2700766B1 (fr) * | 1993-01-27 | 1995-03-24 | Atochem Elf Sa | Procédé de fluoration de perchloréthylène ou du pentachloréthane. |
| FR2700770B1 (fr) * | 1993-01-27 | 1995-03-24 | Atochem Elf Sa | Procédé de fabrication du 1,1,1,2-tétrafluoro-2-chloroéthane et du pentafluoroéthane. |
| US5827492A (en) * | 1993-01-28 | 1998-10-27 | E. I. Du Pont De Nemours And Company | Hydrogen chloride purification process |
| US5866730A (en) * | 1993-04-02 | 1999-02-02 | E. I. Du Pont De Nemours And Company | Process for enriching 1,2-dichloro-1,1,2,2-tetrafluoroethane from a mixture of dichlorotetrafluoroethane isomers |
| US5409625A (en) * | 1993-05-24 | 1995-04-25 | E. I. Du Pont De Nemours And Company | Azeotropic mixture of linear hydrofluorocarbon and HF |
| US5274189A (en) * | 1993-05-24 | 1993-12-28 | E. I. Du Pont De Nemours And Company | Process for the manufacture of linear hydrofluorocarbons containing end group hydrogen substituents |
| US5396000A (en) * | 1993-05-24 | 1995-03-07 | E. I. Du Pont De Nemours And Company | Process for the manufacture of 1,1,1,2,3,-pentafluoropropane |
| US5274190A (en) * | 1993-05-24 | 1993-12-28 | E. I. Du Pont De Nemours And Company | Process for the manufacture of linear hydrofluorocarbons containing end group hydrogen substituents |
| WO1995011875A1 (en) * | 1993-10-28 | 1995-05-04 | Alliedsignal Inc. | Process for purifying 1,1-dichloro-2,2,2-trifluoroethane and 1-chloro-1,2,2,2-tetrafluoroethane |
| US5411583A (en) * | 1993-11-15 | 1995-05-02 | E. I. Du Pont De Nemours And Company | HF-resistant ceramics and use thereof |
| JP2865554B2 (ja) * | 1994-04-08 | 1999-03-08 | セントラル硝子株式会社 | フルオロメチル−1,1,1,3,3,3−ヘキサフルオロイソプロピルエーテルのガスクロマトグラフ分析 |
| US5545778A (en) * | 1994-05-25 | 1996-08-13 | Alliedsignal Inc. | Single stage process for producing hydrofluorocarbons from perchloroethylene |
| US5569794A (en) * | 1994-05-24 | 1996-10-29 | Alliedsignal Inc. | Vapor phase process for producing hydroflourocarbons from perchloroethylene having a phenolic inhibitor |
| US5563304A (en) * | 1994-05-26 | 1996-10-08 | E. I. Du Pont De Nemours And Company | Production of 1,2-dihydro and 2,2-dihydro hexafluoropropanes and azeotropes thereof with HF |
| ES2147857T3 (es) * | 1994-10-07 | 2000-10-01 | Daikin Ind Ltd | Procedimiento que permite separar pentafluoroetano y procedimiento de preparacion de pentafluoroetano con la ayuda de dicho procedimiento de separacion. |
| JP3558385B2 (ja) * | 1994-10-13 | 2004-08-25 | 昭和電工株式会社 | クロム系フッ素化触媒、及びフッ素化方法 |
| US5847242A (en) * | 1995-05-19 | 1998-12-08 | E. I. Du Pont De Nemours And Company | Catalysts for halogenated hydrocarbon processing, their precursors and their preparation and use |
| RU2141467C1 (ru) * | 1997-03-25 | 1999-11-20 | Товарищество с ограниченной ответственностью Научно-техническая фирма "Комкон" | Способ получения пентафторэтана |
| IT1303074B1 (it) | 1998-05-07 | 2000-10-23 | Ausimont Spa | Catalizzatore per la fluorurazione di composti organici alogenati |
| US6365544B2 (en) | 1998-05-22 | 2002-04-02 | Conoco Inc. | Fischer-Tropsch processes and catalysts using fluorided alumina supports |
| US6333294B1 (en) | 1998-05-22 | 2001-12-25 | Conoco Inc. | Fischer-tropsch processes and catalysts with promoters |
| US6472574B2 (en) | 1999-12-10 | 2002-10-29 | E. I. Du Pont Nemours And Company | Production of 1,2-dihydro and 2,2-dihydro hexafluoropropanes and azeotropes thereof with HF |
| US6333440B1 (en) | 2000-04-07 | 2001-12-25 | E. I. Du Pont De Nemours And Company | Process for perfluorocyclobutane purification |
| US7897823B2 (en) * | 2004-10-29 | 2011-03-01 | E. I. Du Pont De Nemours And Company | Process for production of azeotrope compositions comprising hydrofluoroolefin and hydrogen fluoride and uses of said azeotrope compositions in separation processes |
| US7476771B2 (en) | 2005-11-01 | 2009-01-13 | E.I. Du Pont De Nemours + Company | Azeotrope compositions comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof |
| GB0525699D0 (en) * | 2005-12-17 | 2006-01-25 | Ineos Fluor Holdings Ltd | Process |
| GB0525702D0 (en) * | 2005-12-17 | 2006-01-25 | Ineos Fluor Holdings Ltd | Process |
| GB0525701D0 (en) * | 2005-12-17 | 2006-01-25 | Ineos Fluor Holdings Ltd | Process |
| GB0525700D0 (en) * | 2005-12-17 | 2006-01-25 | Ineos Fluor Holdings Ltd | Process |
| JP5081225B2 (ja) * | 2006-03-31 | 2012-11-28 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ハイドロフルオロオレフィンの併産 |
| US8232435B2 (en) * | 2006-09-05 | 2012-07-31 | E I Du Pont De Nemours And Company | 1,2,3,3,3-pentafluoropropene production processes |
| CN101522597B (zh) | 2006-10-03 | 2013-05-29 | 墨西哥化学阿玛科股份有限公司 | 通过脱卤化氢制备c3-c6(氢)氟烯烃的方法 |
| CN103755519A (zh) * | 2014-02-24 | 2014-04-30 | 山东联创节能新材料股份有限公司 | 六氟丁烯的合成方法 |
| CN112946126B (zh) * | 2021-02-02 | 2022-07-15 | 福建德尔科技有限公司 | 高纯三氟化氯中杂质定量、定性装置及方法 |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2669590A (en) * | 1951-08-03 | 1954-02-16 | Allied Chem & Dye Corp | Production of fluorine compounds |
| US2755313A (en) * | 1951-08-03 | 1956-07-17 | Allied Chem & Dye Corp | Manufacture of saturated halocarbons |
| US2744147A (en) * | 1952-02-04 | 1956-05-01 | Dow Chemical Co | Fluorination of haloalkanes with a catalyst containing gamma alumina |
| US2744148A (en) * | 1952-02-04 | 1956-05-01 | Dow Chemical Co | Process for fluorination of haloalkanes using a hydrogen fluoride activated catalyst containing alumina, a metal fluoride and basic aluminum fluoride |
| US2724004A (en) * | 1952-04-08 | 1955-11-15 | Goodrich Co B F | Preparation of 1, 1-difluoro-1, 2, 2-trichloroethane |
| US2850543A (en) * | 1954-02-17 | 1958-09-02 | Allied Chem | Manufacture of 1, 2, 2-trichloro-1, 1, 2-trifluoroethane |
| GB805503A (en) * | 1956-03-15 | 1958-12-10 | Dow Chemical Co | Improved fluorination catalyst and process |
| US3258500A (en) * | 1959-08-17 | 1966-06-28 | Du Pont | Process for fluorinating halohydro-carbons |
| US3157707A (en) * | 1961-02-20 | 1964-11-17 | Union Carbide Corp | Method of reacting tetrachloroethylene, chlorine and hydrogen fluoride |
| NL274475A (en, 2012) * | 1962-02-07 | |||
| GB1000485A (en) * | 1962-02-07 | 1965-08-04 | Sicedison Spa | Improvements in or relating to the fluorination of halo-olefines |
| NL301934A (en, 2012) * | 1962-12-28 | 1900-01-01 | ||
| US3607955A (en) * | 1968-04-08 | 1971-09-21 | Phillips Petroleum Co | Hydrofluorination and dehydrofluorination and catalysts therefor |
| SE361134B (en, 2012) * | 1968-07-25 | 1973-10-22 | Montedison Spa | |
| DK138673B (da) * | 1968-10-10 | 1978-10-16 | Montedison Spa | Katalysator til fremstilling af chlorfluorerede ethaner. |
| DE1910529C3 (de) * | 1969-03-01 | 1978-09-28 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur katalytischen Hydrofluorierung von bestimmten gesattigten und ungesättigten halogenierten Kohlenwasserstoffen |
| GB1307224A (en) * | 1969-06-27 | 1973-02-14 | Ici Ltd | Chromium oxide catalyst |
| NL171235C (nl) * | 1970-06-10 | 1983-03-01 | Montedison Spa | Werkwijze voor het bereiden van katalysatoren die in hoofdzaak uit aluminiumfluoride bestaan en werkwijze voor het bereiden van gefluoreerde of gechloorfluoreerde koolwaterstoffen met behulp van een dergelijke katalysator. |
| US3752850A (en) * | 1970-12-24 | 1973-08-14 | Hoechst Ag | Fluorination of aliphatic compounds |
| BE613582A (en, 2012) * | 1973-09-24 | 1900-01-01 | ||
| US4147733A (en) * | 1978-05-22 | 1979-04-03 | The Dow Chemical Company | Fluorination of chlorinated hydrocarbons |
| DE3009760A1 (de) * | 1980-03-14 | 1981-09-24 | Hoechst Ag, 6000 Frankfurt | Verfahren zur herstellung von hochreinen teilfluorierten aethanen |
| IT1202652B (it) * | 1987-03-09 | 1989-02-09 | Ausimont Spa | Processo per la preparazione di 1,1,1-trifluoro-2,2-dicloroetano mediante idrofluorurazione in presenza di catalizzatori |
-
1987
- 1987-07-07 US US07/070,826 patent/US4766260A/en not_active Expired - Lifetime
-
1988
- 1988-06-30 DE DE8888305956T patent/DE3869242D1/de not_active Expired - Lifetime
- 1988-06-30 AT AT88305956T patent/ATE73748T1/de not_active IP Right Cessation
- 1988-06-30 EP EP88305956A patent/EP0298662B2/en not_active Expired - Lifetime
- 1988-06-30 ES ES198888305956T patent/ES2033432T3/es not_active Expired - Lifetime
- 1988-07-05 CA CA000571133A patent/CA1308743C/en not_active Expired - Lifetime
- 1988-07-06 BR BR8803356A patent/BR8803356A/pt not_active Application Discontinuation
- 1988-07-06 AR AR88311354A patent/AR244651A1/es active
- 1988-07-06 RU SU884356113A patent/RU1799375C/ru active
- 1988-07-06 ZA ZA884845A patent/ZA884845B/xx unknown
- 1988-07-06 KR KR1019880008379A patent/KR890001916A/ko not_active Withdrawn
- 1988-07-06 AU AU18771/88A patent/AU600212B2/en not_active Ceased
- 1988-07-07 CN CN88104212A patent/CN1014404B/zh not_active Expired
- 1988-07-07 MX MX012191A patent/MX166813B/es unknown
- 1988-07-07 JP JP63167898A patent/JP2578923B2/ja not_active Expired - Fee Related
-
1992
- 1992-03-19 GR GR920400461T patent/GR3004106T3/el unknown
- 1992-05-15 SG SG540/92A patent/SG54092G/en unknown
- 1992-07-30 HK HK567/92A patent/HK56792A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA884845B (en) | 1990-03-28 |
| JP2578923B2 (ja) | 1997-02-05 |
| CA1308743C (en) | 1992-10-13 |
| DE3869242D1 (de) | 1992-04-23 |
| ATE73748T1 (de) | 1992-04-15 |
| CN1031073A (zh) | 1989-02-15 |
| US4766260A (en) | 1988-08-23 |
| BR8803356A (pt) | 1989-01-24 |
| HK56792A (en) | 1992-08-07 |
| EP0298662A1 (en) | 1989-01-11 |
| AU1877188A (en) | 1989-01-12 |
| JPH01221338A (ja) | 1989-09-04 |
| KR890001916A (ko) | 1989-04-06 |
| SG54092G (en) | 1992-07-24 |
| AR244651A1 (es) | 1993-11-30 |
| AU600212B2 (en) | 1990-08-02 |
| ES2033432T3 (es) | 1993-03-16 |
| RU1799375C (ru) | 1993-02-28 |
| EP0298662B1 (en) | 1992-03-18 |
| CN1014404B (zh) | 1991-10-23 |
| GR3004106T3 (en, 2012) | 1993-03-31 |
| EP0298662B2 (en) | 1999-08-11 |
Similar Documents
| Publication | Publication Date | Title |
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