GB1153035A - Production of Aromatic Polymers and Intermediates therefor - Google Patents
Production of Aromatic Polymers and Intermediates thereforInfo
- Publication number
- GB1153035A GB1153035A GB9764/66A GB976466A GB1153035A GB 1153035 A GB1153035 A GB 1153035A GB 9764/66 A GB9764/66 A GB 9764/66A GB 976466 A GB976466 A GB 976466A GB 1153035 A GB1153035 A GB 1153035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- alkali metal
- salts
- production
- sulphones
- 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
- 125000003118 aryl group Chemical group 0.000 title 1
- 239000000543 intermediate Substances 0.000 title 1
- 229920000642 polymer Polymers 0.000 title 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 2
- 150000002576 ketones Chemical class 0.000 abstract 2
- 125000001174 sulfone group Chemical group 0.000 abstract 2
- GPAPPPVRLPGFEQ-UHFFFAOYSA-N 4,4'-dichlorodiphenyl sulfone Chemical compound C1=CC(Cl)=CC=C1S(=O)(=O)C1=CC=C(Cl)C=C1 GPAPPPVRLPGFEQ-UHFFFAOYSA-N 0.000 abstract 1
- LFASIQLVFCSCCU-UHFFFAOYSA-N 4-(4-chlorophenyl)sulfonylphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(Cl)C=C1 LFASIQLVFCSCCU-UHFFFAOYSA-N 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 229910001508 alkali metal halide Inorganic materials 0.000 abstract 1
- 150000008045 alkali metal halides Chemical class 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- -1 alkali metal salts Chemical class 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000020477 pH reduction Effects 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C317/00—Sulfones; Sulfoxides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/64—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of functional groups containing oxygen only in singly bound form
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/82—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups
- C07C49/83—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups polycyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
- C08G75/0204—Polyarylenethioethers
- C08G75/0236—Polyarylenethioethers containing atoms other than carbon or sulfur in a linkage between arylene groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/20—Polysulfones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Polyethers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Priority Applications (36)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9764/66A GB1153035A (en) | 1965-09-24 | 1965-09-24 | Production of Aromatic Polymers and Intermediates therefor |
| DE19661620923 DE1620923C (de) | 1965-09-24 | 1966-09-21 | Verfahren zur Herstellung von aromatischen Polymeren |
| DE1795242A DE1795242B2 (de) | 1965-09-24 | 1966-09-21 | Alkalisalze von Halogenphenylsulfonyl phenolen Ausscheidung aus 1620923 |
| DE1795725A DE1795725B1 (de) | 1965-09-24 | 1966-09-21 | Verfahren zur Herstellung von Polysulfonen |
| LU52010D LU52010A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1966-09-22 | |
| FR77509A FR1495132A (fr) | 1965-09-24 | 1966-09-23 | Procédé de production de polymères aromatiques et de leurs intermédiaires |
| BE687344D BE687344A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1966-09-23 | |
| IL2656966A IL26569A (en) | 1965-09-24 | 1966-09-23 | Manufacture of aromatic polymers and intermediate products for this purpose |
| NL6613475A NL6613475A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1966-09-23 | |
| SE12848/66A SE337927B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1966-09-23 | |
| SE00238/70A SE368411B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1966-09-23 | |
| CS612566A CS157623B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1966-09-23 | |
| ES331567A ES331567A1 (es) | 1965-09-24 | 1966-09-24 | Procedimiento para la produccion de polimeros aromaticos. |
| CH1738370A CH506579A (de) | 1965-09-24 | 1966-09-26 | Verfahren zur Herstellung von Polyäthern |
| AT952869A AT294041B (de) | 1965-09-24 | 1966-09-26 | Verfahren zur Herstellung von neuen 4-(4'-Halogenphenylsulfonyl)-phenolen sowie von deren Alkalisalzen |
| AT721468A AT291589B (de) | 1965-09-24 | 1966-09-26 | Verfahren zur Herstellung von aromatischen Polymeren |
| CH1738270A CH507185A (de) | 1965-09-24 | 1966-09-26 | Verfahren zur Herstellung von Alkalimetallsalzen von 4-(4-Halogenphenylsulfonyl)-bzw. 4-(4-Halogenbenzoyl)-phenol |
| CH1382966A CH503065A (de) | 1965-09-24 | 1966-09-26 | Verfahren zur Herstellung von aromatischen Polymeren |
| SU1231099A SU410594A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1966-10-21 | |
| GB03892/67A GB1153528A (en) | 1965-09-24 | 1967-03-23 | Production of Aromatic Polymers |
| GB03891/67A GB1153527A (en) | 1965-09-24 | 1967-03-23 | Aromatic Polymers and the production thereof |
| GB1223168A GB1234301A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1968-03-13 | |
| BE712684D BE712684A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1968-03-22 | |
| DE19681770038 DE1770038A1 (de) | 1965-09-24 | 1968-03-22 | Verfahren zur Herstellung von aromatischen Polymeren |
| NL6804087A NL6804087A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1968-03-22 | |
| LU55747D LU55747A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1968-03-22 | |
| FR145031A FR94242E (fr) | 1965-09-24 | 1968-03-22 | Procédé de production de polymeres aromatiques et de leurs intermédiaires. |
| CH435368A CH524653A (de) | 1965-09-24 | 1968-03-25 | Verfahren zur Herstellung von aromatischen Polymeren |
| BE729715D BE729715A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1969-03-11 | |
| FR6907132A FR2003817A6 (en) | 1965-09-24 | 1969-03-13 | Aromatic polymers from dihalogeno-benzenoid cpds |
| JP7786270A JPS501020B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-09-24 | 1970-09-07 | |
| DK83671A DK137993B (da) | 1965-09-24 | 1971-02-24 | Fremgangsmåde til fremstilling af højmolekulære aromatiske polymere. |
| US36508673 USRE28252E (en) | 1965-09-24 | 1973-05-30 | Copolymers of units i and ii |
| NL737310125A NL147757B (nl) | 1965-09-24 | 1973-07-20 | Werkwijze voor het bereiden van poly(aryleenethers of thioethers). |
| NL737310126A NL149161B (nl) | 1965-09-24 | 1973-07-20 | Werkwijze voor het bereiden van een produkt, dat een alkalimetaalzout van een fenolderivaat bevat. |
| US05/632,979 US4232142A (en) | 1965-09-24 | 1975-11-18 | Production of polyarylene ether sulphones and ketones |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9764/66A GB1153035A (en) | 1965-09-24 | 1965-09-24 | Production of Aromatic Polymers and Intermediates therefor |
| GB4073465 | 1965-09-24 | ||
| GB417666 | 1966-01-31 | ||
| GB417766 | 1966-01-31 | ||
| GB417866 | 1966-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1153035A true GB1153035A (en) | 1969-05-21 |
Family
ID=27515741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9764/66A Expired GB1153035A (en) | 1965-09-24 | 1965-09-24 | Production of Aromatic Polymers and Intermediates therefor |
Country Status (10)
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2130407A1 (de) * | 1970-06-19 | 1971-12-23 | Ici Ltd | Klebstoffzusammensetzungen |
| FR2125511A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-02-16 | 1972-09-29 | Raychem Corp | |
| JPS4930519B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1969-06-25 | 1974-08-13 | ||
| DE2433400A1 (de) * | 1973-07-11 | 1975-02-06 | Denki Kagaku Kogyo Kk | Verfahren zur herstellung eines aromatischen polymeren und nach diesem verfahren hergestelltes aromatisches polymeres |
| JPS5035296A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-07-30 | 1975-04-03 | ||
| JPS5036598A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-08-06 | 1975-04-05 | ||
| US3950428A (en) * | 1971-07-15 | 1976-04-13 | Imperial Chemical Industries Limited | Aromatic polymers |
| US3979459A (en) | 1973-05-25 | 1976-09-07 | Imperial Chemical Industries Limited | Substituted 4-phenyl benzophenones |
| US3984604A (en) | 1970-06-19 | 1976-10-05 | Imperial Chemical Industries Limited | Aromatic polysulphone coated article and bonded structure |
| US4070349A (en) | 1976-06-22 | 1978-01-24 | Phillips Petroleum Company | Aromatic sulfide/sulfone polymer production |
| US4102875A (en) | 1976-06-22 | 1978-07-25 | Phillips Petroleum Company | Aromatic sulfide/sulfone polymer production |
| US4125525A (en) * | 1976-06-22 | 1978-11-14 | Phillips Petroleum Company | Aromatic sulfide/sulfone polymer production |
| US4533417A (en) * | 1983-07-19 | 1985-08-06 | Bicc Public Limited Company | Manufacture of oriented insulated wires and cables |
| US4605774A (en) * | 1978-09-18 | 1986-08-12 | Mobay Corporation | Preparation of bis(4-hydroxyphenyl thio)benzenes |
| US5079079A (en) * | 1990-09-20 | 1992-01-07 | Phillips Petroleum Company | Reinforced plastic comprising an arylene sulfide sulfone copolymer matrix |
| US5166305A (en) * | 1990-02-02 | 1992-11-24 | Korea Institute Of Science And Technology | Aromatic polysulfoneetherketone polymers |
| US8378054B2 (en) | 2007-11-13 | 2013-02-19 | Basf Se | Method for producing polyaryl ethers |
| EP3022253B1 (de) | 2013-07-18 | 2021-05-19 | Basf Se | Vereinzelung einer polyarylenetherlösung |
| CN118562132A (zh) * | 2024-05-30 | 2024-08-30 | 杭州深蓝生物材料有限公司 | 一种聚芳砜树脂的制备方法 |
-
1965
- 1965-09-24 GB GB9764/66A patent/GB1153035A/en not_active Expired
-
1966
- 1966-09-22 LU LU52010D patent/LU52010A1/xx unknown
- 1966-09-23 SE SE12848/66A patent/SE337927B/xx unknown
- 1966-09-23 NL NL6613475A patent/NL6613475A/xx unknown
- 1966-09-23 CS CS612566A patent/CS157623B2/cs unknown
- 1966-09-23 BE BE687344D patent/BE687344A/xx unknown
- 1966-09-23 SE SE00238/70A patent/SE368411B/xx unknown
- 1966-09-24 ES ES331567A patent/ES331567A1/es not_active Expired
- 1966-09-26 AT AT721468A patent/AT291589B/de active
- 1966-09-26 AT AT952869A patent/AT294041B/de not_active IP Right Cessation
- 1966-09-26 CH CH1382966A patent/CH503065A/de not_active IP Right Cessation
- 1966-10-21 SU SU1231099A patent/SU410594A3/ru active
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4930519B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1969-06-25 | 1974-08-13 | ||
| DE2130407A1 (de) * | 1970-06-19 | 1971-12-23 | Ici Ltd | Klebstoffzusammensetzungen |
| US3769150A (en) * | 1970-06-19 | 1973-10-30 | Ici Ltd | Aromatic polysulphone coated article and bonded structure |
| US3984604A (en) | 1970-06-19 | 1976-10-05 | Imperial Chemical Industries Limited | Aromatic polysulphone coated article and bonded structure |
| FR2125511A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-02-16 | 1972-09-29 | Raychem Corp | |
| US3950428A (en) * | 1971-07-15 | 1976-04-13 | Imperial Chemical Industries Limited | Aromatic polymers |
| US3979459A (en) | 1973-05-25 | 1976-09-07 | Imperial Chemical Industries Limited | Substituted 4-phenyl benzophenones |
| DE2433400A1 (de) * | 1973-07-11 | 1975-02-06 | Denki Kagaku Kogyo Kk | Verfahren zur herstellung eines aromatischen polymeren und nach diesem verfahren hergestelltes aromatisches polymeres |
| JPS5035296A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-07-30 | 1975-04-03 | ||
| JPS5036598A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-08-06 | 1975-04-05 | ||
| US4070349A (en) | 1976-06-22 | 1978-01-24 | Phillips Petroleum Company | Aromatic sulfide/sulfone polymer production |
| US4102875A (en) | 1976-06-22 | 1978-07-25 | Phillips Petroleum Company | Aromatic sulfide/sulfone polymer production |
| US4125525A (en) * | 1976-06-22 | 1978-11-14 | Phillips Petroleum Company | Aromatic sulfide/sulfone polymer production |
| US4605774A (en) * | 1978-09-18 | 1986-08-12 | Mobay Corporation | Preparation of bis(4-hydroxyphenyl thio)benzenes |
| US4533417A (en) * | 1983-07-19 | 1985-08-06 | Bicc Public Limited Company | Manufacture of oriented insulated wires and cables |
| US5166305A (en) * | 1990-02-02 | 1992-11-24 | Korea Institute Of Science And Technology | Aromatic polysulfoneetherketone polymers |
| US5079079A (en) * | 1990-09-20 | 1992-01-07 | Phillips Petroleum Company | Reinforced plastic comprising an arylene sulfide sulfone copolymer matrix |
| US8378054B2 (en) | 2007-11-13 | 2013-02-19 | Basf Se | Method for producing polyaryl ethers |
| EP3022253B1 (de) | 2013-07-18 | 2021-05-19 | Basf Se | Vereinzelung einer polyarylenetherlösung |
| EP3022253B2 (de) † | 2013-07-18 | 2024-08-14 | Basf Se | Vereinzelung einer polyarylenetherlösung |
| CN118562132A (zh) * | 2024-05-30 | 2024-08-30 | 杭州深蓝生物材料有限公司 | 一种聚芳砜树脂的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| LU52010A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-03-22 |
| AT291589B (de) | 1971-07-26 |
| BE687344A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-03-01 |
| SU410594A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-01-05 |
| SE368411B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-01 |
| ES331567A1 (es) | 1968-08-01 |
| DE1620923A1 (de) | 1970-05-27 |
| NL6613475A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-03-28 |
| DE1620923B2 (de) | 1972-08-24 |
| CH503065A (de) | 1971-02-15 |
| AT294041B (de) | 1971-11-10 |
| CS157623B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-09-16 |
| SE337927B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-08-23 |
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