CH660180A5 - Verfahren zur herstellung eines acylium-fluorides. - Google Patents
Verfahren zur herstellung eines acylium-fluorides. Download PDFInfo
- Publication number
- CH660180A5 CH660180A5 CH3476/82A CH347682A CH660180A5 CH 660180 A5 CH660180 A5 CH 660180A5 CH 3476/82 A CH3476/82 A CH 3476/82A CH 347682 A CH347682 A CH 347682A CH 660180 A5 CH660180 A5 CH 660180A5
- Authority
- CH
- Switzerland
- Prior art keywords
- carbon monoxide
- organic compound
- range
- propylene
- fluoride
- Prior art date
Links
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 94
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 91
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 72
- 150000002894 organic compounds Chemical class 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 45
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 44
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 239000002253 acid Substances 0.000 claims description 22
- 239000007791 liquid phase Substances 0.000 claims description 22
- 239000011541 reaction mixture Substances 0.000 claims description 21
- FSQOYWQCIXSBNP-UHFFFAOYSA-N 2-methylpropanoyl fluoride Chemical group CC(C)C(F)=O FSQOYWQCIXSBNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 18
- 239000012808 vapor phase Substances 0.000 claims description 17
- 150000001336 alkenes Chemical class 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 150000002148 esters Chemical class 0.000 claims description 12
- -1 organic compound isopropyl isobutyrate Chemical class 0.000 claims description 11
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 6
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 6
- WDAXFOBOLVPGLV-UHFFFAOYSA-N ethyl isobutyrate Chemical compound CCOC(=O)C(C)C WDAXFOBOLVPGLV-UHFFFAOYSA-N 0.000 claims description 6
- 239000012071 phase Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- XNMQEEKYCVKGBD-UHFFFAOYSA-N dimethylacetylene Natural products CC#CC XNMQEEKYCVKGBD-UHFFFAOYSA-N 0.000 claims description 3
- IJMWOMHMDSDKGK-UHFFFAOYSA-N Isopropyl propionate Chemical compound CCC(=O)OC(C)C IJMWOMHMDSDKGK-UHFFFAOYSA-N 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229940024423 isopropyl isobutyrate Drugs 0.000 claims 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims 1
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 6
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000005810 carbonylation reaction Methods 0.000 description 4
- BHIWKHZACMWKOJ-UHFFFAOYSA-N methyl isobutyrate Chemical compound COC(=O)C(C)C BHIWKHZACMWKOJ-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 150000002222 fluorine compounds Chemical class 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- UIPSRNHDSBVXHY-UHFFFAOYSA-N 2,5-dichloropyridine-4-carbaldehyde Chemical compound ClC1=CC(C=O)=C(Cl)C=N1 UIPSRNHDSBVXHY-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006315 carbonylation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1 -dodecene Natural products CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- VRBLNWVVFVBNRK-UHFFFAOYSA-N 1,6-diphenylhexane-1,6-dione Chemical compound C=1C=CC=CC=1C(=O)CCCCC(=O)C1=CC=CC=C1 VRBLNWVVFVBNRK-UHFFFAOYSA-N 0.000 description 1
- WGCJTTUVWKJDAX-UHFFFAOYSA-N 1-fluoro-2-methylpropane Chemical compound CC(C)CF WGCJTTUVWKJDAX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- WVRPFQGZHKZCEB-UHFFFAOYSA-N Isopropyl 2-methylpropanoate Chemical compound CC(C)OC(=O)C(C)C WVRPFQGZHKZCEB-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical compound [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 239000012431 aqueous reaction media Substances 0.000 description 1
- QNRMTGGDHLBXQZ-UHFFFAOYSA-N buta-1,2-diene Chemical compound CC=C=C QNRMTGGDHLBXQZ-UHFFFAOYSA-N 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
- IICQZTQZQSBHBY-UHFFFAOYSA-N non-2-ene Chemical group CCCCCCC=CC IICQZTQZQSBHBY-UHFFFAOYSA-N 0.000 description 1
- NZGDDIUIXYFYFO-UHFFFAOYSA-N octane-2,7-dione Chemical compound CC(=O)CCCCC(C)=O NZGDDIUIXYFYFO-UHFFFAOYSA-N 0.000 description 1
- QYZLKGVUSQXAMU-UHFFFAOYSA-N penta-1,4-diene Chemical compound C=CCC=C QYZLKGVUSQXAMU-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
- C07C51/14—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on a carbon-to-carbon unsaturated bond in organic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
- C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/36—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
- C07C67/38—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by addition to an unsaturated carbon-to-carbon bond
-
- 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
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27876481A | 1981-06-29 | 1981-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH660180A5 true CH660180A5 (de) | 1987-03-31 |
Family
ID=23066263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH3476/82A CH660180A5 (de) | 1981-06-29 | 1982-06-04 | Verfahren zur herstellung eines acylium-fluorides. |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS6024088B2 (nl) |
| KR (1) | KR850001914B1 (nl) |
| AT (1) | AT388160B (nl) |
| AU (1) | AU532639B2 (nl) |
| BE (1) | BE893419A (nl) |
| CA (1) | CA1173057A (nl) |
| CH (1) | CH660180A5 (nl) |
| DE (1) | DE3221172C2 (nl) |
| FR (1) | FR2508441B1 (nl) |
| GB (1) | GB2100729B (nl) |
| IT (1) | IT1195930B (nl) |
| NL (1) | NL187013C (nl) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ195559A (en) * | 1979-11-29 | 1984-03-16 | Ris Irrigation Syst | Butterfly sprinkler with dust protection for bearing |
| US4499029A (en) * | 1983-06-15 | 1985-02-12 | Ashland Oil, Inc. | Isobutyryl fluoride manufacture |
| DE3725428A1 (de) * | 1987-07-31 | 1989-02-09 | Basf Ag | Verfahren zur herstellung von carbonsaeurehalogeniden |
| FR2691965A1 (fr) * | 1992-06-04 | 1993-12-10 | Atochem Elf Sa | Procédé de fabrication de fluorure d'isobutyryle. |
| GB9917429D0 (en) * | 1999-07-23 | 1999-09-22 | Swan Thomas & Co Ltd | Carbonylation reactions |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972291C (de) * | 1954-05-16 | 1959-07-02 | Studiengesellschaft Kohle Mbh | Verfahren zur Herstellung von Monocarbonsaeuren aus Olefinen, Kohlenoxyd und Wasser |
| DE973077C (de) * | 1954-07-30 | 1959-11-26 | Studiengesellschaft Kohle Mbh | Verfahren zur Herstellung von Carbonsaeuren aus Olefinen und Kohlenoxyd |
| DE1064941B (de) * | 1957-04-24 | 1959-09-10 | Studiengesellschaft Kohle Mbh | Verfahren zur Herstellung von Gemischen aus gesaettigten aliphatischen oder cycloaliphatischen Monocarbonsaeurealkylestern |
| US3065242A (en) * | 1960-02-23 | 1962-11-20 | Du Pont | Production of acyl halides, carboxylic acids and lactones |
| US3167585A (en) * | 1960-08-25 | 1965-01-26 | Gulf Research Development Co | Process for carboxylation of iso-olefins |
| GB942367A (en) * | 1961-04-29 | 1963-11-20 | Basf Ag | Continuous production of carboxylic acids from olefines, carbon monoxide and water |
| NL6816940A (nl) * | 1967-11-28 | 1969-05-30 | ||
| GB1232317A (nl) * | 1968-12-30 | 1971-05-19 | ||
| BE755997A (fr) * | 1969-09-11 | 1971-03-10 | Bp Chem Int Ltd | Production d'acides dicarboxyliques |
| DE2750719A1 (de) * | 1977-11-12 | 1979-05-17 | Roehm Gmbh | Verfahren zur herstellung von isobuttersaeure |
| US4224232A (en) * | 1978-12-21 | 1980-09-23 | Gulf Research & Development Company | Production of carboxylic acids from olefins and mixtures of olefins |
| DE3064472D1 (en) * | 1979-04-09 | 1983-09-08 | Chem Systems | Preparation of acids and esters |
-
1982
- 1982-06-03 AT AT0215082A patent/AT388160B/de not_active IP Right Cessation
- 1982-06-04 BE BE0/208271A patent/BE893419A/fr not_active IP Right Cessation
- 1982-06-04 AU AU84609/82A patent/AU532639B2/en not_active Ceased
- 1982-06-04 DE DE3221172A patent/DE3221172C2/de not_active Expired
- 1982-06-04 CH CH3476/82A patent/CH660180A5/de not_active IP Right Cessation
- 1982-06-04 IT IT21707/82A patent/IT1195930B/it active
- 1982-06-04 NL NLAANVRAGE8202268,A patent/NL187013C/nl not_active IP Right Cessation
- 1982-06-04 KR KR8202507A patent/KR850001914B1/ko active
- 1982-06-04 FR FR8209809A patent/FR2508441B1/fr not_active Expired
- 1982-06-04 GB GB08216304A patent/GB2100729B/en not_active Expired
- 1982-06-04 CA CA000404487A patent/CA1173057A/en not_active Expired
- 1982-06-04 JP JP57096065A patent/JPS6024088B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT8221707A0 (it) | 1982-06-04 |
| BE893419A (fr) | 1982-10-01 |
| NL187013B (nl) | 1990-12-03 |
| JPS588036A (ja) | 1983-01-18 |
| GB2100729A (en) | 1983-01-06 |
| DE3221172A1 (de) | 1983-01-05 |
| DE3221172C2 (de) | 1984-08-02 |
| ATA215082A (de) | 1988-10-15 |
| FR2508441B1 (fr) | 1987-04-30 |
| IT1195930B (it) | 1988-11-03 |
| AU8460982A (en) | 1983-03-10 |
| GB2100729B (en) | 1985-10-30 |
| AU532639B2 (en) | 1983-10-06 |
| KR840000461A (ko) | 1984-02-22 |
| KR850001914B1 (ko) | 1985-12-31 |
| NL8202268A (nl) | 1983-01-17 |
| FR2508441A1 (fr) | 1982-12-31 |
| AT388160B (de) | 1989-05-10 |
| CA1173057A (en) | 1984-08-21 |
| JPS6024088B2 (ja) | 1985-06-11 |
| NL187013C (nl) | 1991-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |