CA1063130A - Process for preparing 1,2-oxa-phospholanes - Google Patents
Process for preparing 1,2-oxa-phospholanesInfo
- Publication number
- CA1063130A CA1063130A CA254,703A CA254703A CA1063130A CA 1063130 A CA1063130 A CA 1063130A CA 254703 A CA254703 A CA 254703A CA 1063130 A CA1063130 A CA 1063130A
- Authority
- CA
- Canada
- Prior art keywords
- carbon atoms
- radical
- hydrogen
- groups
- lower alkyl
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- FXPDGSSSQUFIPW-UHFFFAOYSA-N oxaphospholane Chemical class C1COPC1 FXPDGSSSQUFIPW-UHFFFAOYSA-N 0.000 title 1
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 32
- -1 cycloalkyl radical Chemical class 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 15
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- 150000004820 halides Chemical class 0.000 claims abstract description 9
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 9
- 150000002367 halogens Chemical class 0.000 claims abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 150000003254 radicals Chemical class 0.000 claims abstract description 9
- 150000005840 aryl radicals Chemical class 0.000 claims abstract description 6
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 6
- 239000000460 chlorine Substances 0.000 claims abstract description 6
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 claims abstract description 5
- SLRMQYXOBQWXCR-UHFFFAOYSA-N 2154-56-5 Chemical compound [CH2]C1=CC=CC=C1 SLRMQYXOBQWXCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 4
- 125000003277 amino group Chemical group 0.000 claims abstract description 4
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 6
- 239000011541 reaction mixture Substances 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 229910000039 hydrogen halide Inorganic materials 0.000 claims description 3
- 239000012433 hydrogen halide Substances 0.000 claims description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Chemical group 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims 1
- SSHDEAQDXLFSAF-UHFFFAOYSA-N O=C1CCP(=O)O1 Chemical class O=C1CCP(=O)O1 SSHDEAQDXLFSAF-UHFFFAOYSA-N 0.000 abstract description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 5
- 125000000547 substituted alkyl group Chemical group 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- CDPKWOKGVUHZFR-UHFFFAOYSA-N dichloro(methyl)phosphane Chemical compound CP(Cl)Cl CDPKWOKGVUHZFR-UHFFFAOYSA-N 0.000 description 11
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 11
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 10
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 9
- 229940114077 acrylic acid Drugs 0.000 description 9
- 230000000875 corresponding effect Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- LFMAOMQWCSTELR-UHFFFAOYSA-N 2-methyl-2-oxo-1,2$l^{5}-oxaphospholan-5-one Chemical compound CP1(=O)CCC(=O)O1 LFMAOMQWCSTELR-UHFFFAOYSA-N 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 150000004850 phospholanes Chemical class 0.000 description 4
- QXFUBAAEKCHBQY-UHFFFAOYSA-N 3-[hydroxy(methyl)phosphoryl]propanoic acid Chemical compound CP(O)(=O)CCC(O)=O QXFUBAAEKCHBQY-UHFFFAOYSA-N 0.000 description 3
- OVBRWILBZHYAOR-UHFFFAOYSA-N 3-hydroxyphosphonoylpropanoic acid Chemical class OC(=O)CCP(O)=O OVBRWILBZHYAOR-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Substances ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007363 ring formation reaction Methods 0.000 description 3
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 2
- KNKRKFALVUDBJE-UHFFFAOYSA-N 1,2-dichloropropane Chemical compound CC(Cl)CCl KNKRKFALVUDBJE-UHFFFAOYSA-N 0.000 description 2
- XPLJLWYSFMFYGA-UHFFFAOYSA-N 2-oxo-2-phenyl-1,2$l^{5}-oxaphospholan-5-one Chemical compound O1C(=O)CCP1(=O)C1=CC=CC=C1 XPLJLWYSFMFYGA-UHFFFAOYSA-N 0.000 description 2
- SGGKZWABPPXBNE-UHFFFAOYSA-N 3-[chloro(methyl)phosphoryl]propanoyl chloride Chemical compound CP(Cl)(=O)CCC(Cl)=O SGGKZWABPPXBNE-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 150000008064 anhydrides Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000012442 inert solvent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- UDTDOTBYANQDIR-UHFFFAOYSA-N 2,4-dimethyl-2-oxo-1,2$l^{5}-oxaphospholan-5-one Chemical compound CC1CP(C)(=O)OC1=O UDTDOTBYANQDIR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VMEOAIGRDIYFQS-UHFFFAOYSA-N ClC(=O)CCP(=O)Cl Chemical class ClC(=O)CCP(=O)Cl VMEOAIGRDIYFQS-UHFFFAOYSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- 208000016113 North Carolina macular dystrophy Diseases 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 239000012346 acetyl chloride Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 229940052651 anticholinergic tertiary amines Drugs 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
- C07F9/657163—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms the ring phosphorus atom being bound to at least one carbon atom
- C07F9/657172—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms the ring phosphorus atom being bound to at least one carbon atom the ring phosphorus atom and one oxygen atom being part of a (thio)phosphinic acid ester: (X = O, S)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5313—Phosphinic compounds, e.g. R2=P(:O)OR'
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2526689A DE2526689C2 (de) | 1975-06-14 | 1975-06-14 | Verfahren zur Herstellung von 2,5-Dioxo-1,2-Oxa-phospholanen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1063130A true CA1063130A (en) | 1979-09-25 |
Family
ID=5949142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA254,703A Expired CA1063130A (en) | 1975-06-14 | 1976-06-11 | Process for preparing 1,2-oxa-phospholanes |
Country Status (10)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56100299A (en) * | 1980-01-16 | 1981-08-12 | Hisaka Works Ltd | Plate of plate type heat exchanger |
| JPS62202220A (ja) * | 1986-03-03 | 1987-09-05 | Mitsubishi Electric Corp | デイジタル装置 |
| US6399814B1 (en) * | 2000-03-20 | 2002-06-04 | Solutia Inc. | Process for the preparation of 2-carboxyalkyl(aryl)phosphinic acid and corresponding anhydride(s) |
| ES2654584T3 (es) * | 2010-01-15 | 2018-02-14 | Suzhou Neupharma Co., Ltd | Ciertas entidades químicas, composiciones y métodos |
| WO2012027957A1 (en) | 2010-08-28 | 2012-03-08 | Suzhou Neupharma Co., Ltd. | Bufalin derivatives, pharmaceutical compositions and use thereof |
| WO2012103810A1 (en) | 2011-02-02 | 2012-08-09 | Suzhou Neupharma Co., Ltd | Certain chemical entities, compositions, and methods |
| CN104427873B (zh) | 2012-04-29 | 2018-11-06 | 润新生物公司 | 某些化学个体、组合物及方法 |
| CN107936054B (zh) * | 2017-12-25 | 2021-02-02 | 利尔化学股份有限公司 | 一种2-羧乙基甲基次膦酸的制备方法 |
| CN108373485A (zh) * | 2018-02-27 | 2018-08-07 | 利尔化学股份有限公司 | 一种环状膦酸酐的生产方法及装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2268157A (en) * | 1939-05-05 | 1941-12-30 | Carl S Marvel | Gamma oxophosphonic acids and derivatives thereof |
| DE2346787C3 (de) * | 1973-09-17 | 1980-05-08 | Hoechst Ag, 6000 Frankfurt | Schwer entflammbare lineare Polyester, Verfahren zu deren Herstellung und deren Verwendung |
-
1975
- 1975-06-14 DE DE2526689A patent/DE2526689C2/de not_active Expired
-
1976
- 1976-06-09 CH CH727476A patent/CH620449A5/de not_active IP Right Cessation
- 1976-06-09 NL NL7606225A patent/NL7606225A/xx not_active Application Discontinuation
- 1976-06-11 JP JP51067857A patent/JPS5949235B2/ja not_active Expired
- 1976-06-11 GB GB24308/76A patent/GB1538951A/en not_active Expired
- 1976-06-11 IT IT24237/76A patent/IT1061454B/it active
- 1976-06-11 US US05/695,126 patent/US4045480A/en not_active Expired - Lifetime
- 1976-06-11 CA CA254,703A patent/CA1063130A/en not_active Expired
- 1976-06-14 FR FR7617925A patent/FR2314192A1/fr active Granted
- 1976-06-14 BE BE167910A patent/BE842940A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US4045480A (en) | 1977-08-30 |
| IT1061454B (it) | 1983-02-28 |
| JPS52271A (en) | 1977-01-05 |
| DE2526689C2 (de) | 1983-08-11 |
| DE2526689A1 (de) | 1976-12-30 |
| BE842940A (fr) | 1976-12-14 |
| GB1538951A (en) | 1979-01-24 |
| FR2314192B1 (US08118993-20120221-C00002.png) | 1979-08-31 |
| CH620449A5 (US08118993-20120221-C00002.png) | 1980-11-28 |
| NL7606225A (nl) | 1976-12-16 |
| FR2314192A1 (fr) | 1977-01-07 |
| JPS5949235B2 (ja) | 1984-12-01 |
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