CA1092290A - Plastics foil for the manufacture of audio-visual information carriers - Google Patents
Plastics foil for the manufacture of audio-visual information carriersInfo
- Publication number
- CA1092290A CA1092290A CA260,908A CA260908A CA1092290A CA 1092290 A CA1092290 A CA 1092290A CA 260908 A CA260908 A CA 260908A CA 1092290 A CA1092290 A CA 1092290A
- Authority
- CA
- Canada
- Prior art keywords
- foil
- weight
- manufacture
- range
- audio
- 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
- 239000011888 foil Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000969 carrier Substances 0.000 title claims abstract description 8
- 229920003023 plastic Polymers 0.000 title description 5
- 239000004033 plastic Substances 0.000 title description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 8
- 239000004014 plasticizer Substances 0.000 claims abstract description 4
- 239000000155 melt Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 18
- 229920000642 polymer Polymers 0.000 description 14
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 10
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 235000013872 montan acid ester Nutrition 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 229920001519 homopolymer Polymers 0.000 description 7
- 229920012128 methyl methacrylate acrylonitrile butadiene styrene Polymers 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 description 5
- 239000006229 carbon black Substances 0.000 description 5
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 5
- -1 vinyl ethers Chemical class 0.000 description 5
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 4
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 3
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 238000012662 bulk polymerization Methods 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- RZRNAYUHWVFMIP-HXUWFJFHSA-N glycerol monolinoleate Natural products CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-HXUWFJFHSA-N 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 229940035044 sorbitan monolaurate Drugs 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PHDVPEOLXYBNJY-KTKRTIGZSA-N 2-(2-hydroxyethoxy)ethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCOCCO PHDVPEOLXYBNJY-KTKRTIGZSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- HDIFHQMREAYYJW-XGXNLDPDSA-N Glyceryl Ricinoleate Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC(=O)OCC(O)CO HDIFHQMREAYYJW-XGXNLDPDSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical class NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- OASDIMRZYZWNDB-UHFFFAOYSA-L dibutyltin(2+);4-ethyl-2-sulfanyloctanoate Chemical compound CCCC[Sn+2]CCCC.CCCCC(CC)CC(S)C([O-])=O.CCCCC(CC)CC(S)C([O-])=O OASDIMRZYZWNDB-UHFFFAOYSA-L 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000002421 finishing Substances 0.000 description 2
- 239000008240 homogeneous mixture Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010557 suspension polymerization reaction Methods 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- PRIUALOJYOZZOJ-UHFFFAOYSA-L 2-ethylhexyl 2-[dibutyl-[2-(2-ethylhexoxy)-2-oxoethyl]sulfanylstannyl]sulfanylacetate Chemical compound CCCCC(CC)COC(=O)CS[Sn](CCCC)(CCCC)SCC(=O)OCC(CC)CCCC PRIUALOJYOZZOJ-UHFFFAOYSA-L 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- LWZFANDGMFTDAV-BURFUSLBSA-N [(2r)-2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O LWZFANDGMFTDAV-BURFUSLBSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- BZDKYAZTCWRUDZ-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;prop-2-enenitrile;styrene Chemical compound C=CC=C.C=CC#N.COC(=O)C(C)=C.C=CC1=CC=CC=C1 BZDKYAZTCWRUDZ-UHFFFAOYSA-N 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- LUZSPGQEISANPO-UHFFFAOYSA-N butyltin Chemical compound CCCC[Sn] LUZSPGQEISANPO-UHFFFAOYSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- VXGIVDFKZKMKQO-UHFFFAOYSA-L dioctyltin isooctylthioglycolate Chemical compound CCCCC(CC)COC(=O)CS[Sn](CCCCCCCC)(CCCCCCCC)SCC(=O)OCC(CC)CCCC VXGIVDFKZKMKQO-UHFFFAOYSA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004206 montan acid ester Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- QUWPKSVNVOPLKX-UHFFFAOYSA-N octan-3-yl 2-sulfanylacetate Chemical compound CCCCCC(CC)OC(=O)CS QUWPKSVNVOPLKX-UHFFFAOYSA-N 0.000 description 1
- NBYNZUVFQLSUFY-UHFFFAOYSA-N octatriacont-19-ene Chemical group CCCCCCCCCCCCCCCCCCC=CCCCCCCCCCCCCCCCCCC NBYNZUVFQLSUFY-UHFFFAOYSA-N 0.000 description 1
- ZMHZSHHZIKJFIR-UHFFFAOYSA-N octyltin Chemical compound CCCCCCCC[Sn] ZMHZSHHZIKJFIR-UHFFFAOYSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000011067 sorbitan monolaureate Nutrition 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- PVNIQBQSYATKKL-UHFFFAOYSA-N tripalmitin Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCC PVNIQBQSYATKKL-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
- G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
- G11B3/707—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only for video discs with grooves
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2540654.6 | 1975-09-12 | ||
| DE19752540654 DE2540654A1 (de) | 1975-09-12 | 1975-09-12 | Kunststoffolie zur herstellung von bild-ton-informationstraegern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1092290A true CA1092290A (en) | 1980-12-23 |
Family
ID=5956278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA260,908A Expired CA1092290A (en) | 1975-09-12 | 1976-09-10 | Plastics foil for the manufacture of audio-visual information carriers |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4071490A (enExample) |
| JP (1) | JPS5236003A (enExample) |
| AT (1) | AT348786B (enExample) |
| BE (1) | BE846145A (enExample) |
| BR (1) | BR7605971A (enExample) |
| CA (1) | CA1092290A (enExample) |
| CH (1) | CH622119A5 (enExample) |
| DE (1) | DE2540654A1 (enExample) |
| ES (1) | ES451276A1 (enExample) |
| FR (1) | FR2324083A1 (enExample) |
| GB (1) | GB1557715A (enExample) |
| IT (1) | IT1070596B (enExample) |
| NL (1) | NL7609920A (enExample) |
| SE (1) | SE411262B (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2818490C3 (de) * | 1978-04-27 | 1985-06-27 | Teldec Telefunken-Decca-Schallplatten Gmbh, 2000 Hamburg | Preßmasse für die Herstellung formstarrer, scheibenförmiger Informationsträger |
| JPS5532298A (en) * | 1978-08-28 | 1980-03-06 | Mca Disco Vision | Producing video disk structure |
| JPS63183949A (ja) * | 1978-08-28 | 1988-07-29 | デイスコビジョン アソシエイツ | ポリメチルメタクリレート材料 |
| US4329278A (en) * | 1981-03-11 | 1982-05-11 | E. I. Du Pont De Nemours And Company | Molding compositions |
| US4329276A (en) * | 1981-03-11 | 1982-05-11 | E. I. Du Pont De Nemours And Company | Molding components |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2248607A1 (de) * | 1972-10-04 | 1974-04-11 | Wacker Chemie Gmbh | Verfahren zur herstellung von polyvinylhalogeniden |
| US3922320A (en) * | 1973-05-21 | 1975-11-25 | Tenneco Chem | Impact-resistant vinyl halide resin compositions containing a styrene-butadiene-alkyl methacrylate polymer and a styrene-acrylonitrile copolymer |
| US3960790A (en) * | 1974-03-25 | 1976-06-01 | Rca Corporation | Disc record and method of compounding disc record composition |
| US3975321A (en) * | 1974-05-13 | 1976-08-17 | Air Products And Chemicals, Inc. | Sound reproduction compositions |
-
1975
- 1975-09-12 DE DE19752540654 patent/DE2540654A1/de not_active Withdrawn
-
1976
- 1976-09-06 ES ES451276A patent/ES451276A1/es not_active Expired
- 1976-09-07 NL NL7609920A patent/NL7609920A/xx unknown
- 1976-09-08 US US05/721,308 patent/US4071490A/en not_active Expired - Lifetime
- 1976-09-09 CH CH1145676A patent/CH622119A5/de not_active IP Right Cessation
- 1976-09-10 IT IT27115/76A patent/IT1070596B/it active
- 1976-09-10 CA CA260,908A patent/CA1092290A/en not_active Expired
- 1976-09-10 SE SE7610017A patent/SE411262B/xx unknown
- 1976-09-10 AT AT675076A patent/AT348786B/de not_active IP Right Cessation
- 1976-09-10 BR BR7605971A patent/BR7605971A/pt unknown
- 1976-09-11 JP JP51108434A patent/JPS5236003A/ja active Pending
- 1976-09-13 FR FR7627448A patent/FR2324083A1/fr not_active Withdrawn
- 1976-09-13 BE BE170590A patent/BE846145A/xx unknown
- 1976-09-13 GB GB37904/76A patent/GB1557715A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1557715A (en) | 1979-12-12 |
| ATA675076A (de) | 1978-07-15 |
| JPS5236003A (en) | 1977-03-19 |
| DE2540654A1 (de) | 1977-03-17 |
| SE7610017L (sv) | 1977-03-13 |
| CH622119A5 (enExample) | 1981-03-13 |
| NL7609920A (nl) | 1977-03-15 |
| ES451276A1 (es) | 1978-08-16 |
| SE411262B (sv) | 1979-12-10 |
| FR2324083A1 (fr) | 1977-04-08 |
| IT1070596B (it) | 1985-03-29 |
| US4071490A (en) | 1978-01-31 |
| BE846145A (fr) | 1977-03-14 |
| AT348786B (de) | 1979-03-12 |
| BR7605971A (pt) | 1977-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |