NO784051L - Fremgangsmaate til fremstilling av blanke til skinnende, galvaniske zinkutfellinger og sur vandig pletteringsopploesning til utfoerelse av fremgangsmaaten - Google Patents
Fremgangsmaate til fremstilling av blanke til skinnende, galvaniske zinkutfellinger og sur vandig pletteringsopploesning til utfoerelse av fremgangsmaatenInfo
- Publication number
- NO784051L NO784051L NO784051A NO784051A NO784051L NO 784051 L NO784051 L NO 784051L NO 784051 A NO784051 A NO 784051A NO 784051 A NO784051 A NO 784051A NO 784051 L NO784051 L NO 784051L
- Authority
- NO
- Norway
- Prior art keywords
- integer
- stated
- formula
- acid
- zinc
- Prior art date
Links
- 239000011701 zinc Substances 0.000 title claims abstract description 48
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 47
- 238000007747 plating Methods 0.000 title claims abstract description 45
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002253 acid Substances 0.000 title claims description 41
- 238000002360 preparation method Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 4
- 230000002378 acidificating effect Effects 0.000 claims abstract description 15
- 239000002244 precipitate Substances 0.000 claims abstract description 7
- -1 zinc cations Chemical class 0.000 claims description 59
- 229920000570 polyether Polymers 0.000 claims description 31
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 29
- 150000003839 salts Chemical class 0.000 claims description 26
- 125000003545 alkoxy group Chemical group 0.000 claims description 23
- 125000000217 alkyl group Chemical group 0.000 claims description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 229910017464 nitrogen compound Inorganic materials 0.000 claims description 15
- 125000000129 anionic group Chemical group 0.000 claims description 14
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 14
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 13
- 125000003342 alkenyl group Chemical group 0.000 claims description 13
- 150000003973 alkyl amines Chemical class 0.000 claims description 13
- 150000001412 amines Chemical class 0.000 claims description 13
- 229910052736 halogen Inorganic materials 0.000 claims description 13
- 150000002367 halogens Chemical class 0.000 claims description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 13
- 125000003884 phenylalkyl group Chemical group 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 10
- 125000001494 2-propynyl group Chemical group [H]C#CC([H])([H])* 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- 150000003752 zinc compounds Chemical group 0.000 claims description 10
- 125000000815 N-oxide group Chemical group 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 7
- 125000001072 heteroaryl group Chemical group 0.000 claims description 7
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 150000002825 nitriles Chemical class 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- JJKVMNNUINFIRK-UHFFFAOYSA-N 4-amino-n-(4-methoxyphenyl)benzamide Chemical compound C1=CC(OC)=CC=C1NC(=O)C1=CC=C(N)C=C1 JJKVMNNUINFIRK-UHFFFAOYSA-N 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 125000004450 alkenylene group Chemical group 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 3
- 230000001588 bifunctional effect Effects 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 125000000623 heterocyclic group Chemical group 0.000 claims description 3
- 150000003335 secondary amines Chemical class 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims 12
- 125000003396 thiol group Chemical class [H]S* 0.000 claims 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims 2
- 125000002560 nitrile group Chemical group 0.000 claims 2
- 235000009529 zinc sulphate Nutrition 0.000 claims 2
- 239000011686 zinc sulphate Substances 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 description 14
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 235000011180 diphosphates Nutrition 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000006172 buffering agent Substances 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- GTLDTDOJJJZVBW-UHFFFAOYSA-N zinc cyanide Chemical compound [Zn+2].N#[C-].N#[C-] GTLDTDOJJJZVBW-UHFFFAOYSA-N 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000557626 Corvus corax Species 0.000 description 1
- 240000007817 Olea europaea Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical class [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical class CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electrolytic Production Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/857,881 US4138294A (en) | 1977-12-06 | 1977-12-06 | Acid zinc electroplating process and composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO784051L true NO784051L (no) | 1979-06-07 |
Family
ID=25326937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO784051A NO784051L (no) | 1977-12-06 | 1978-12-01 | Fremgangsmaate til fremstilling av blanke til skinnende, galvaniske zinkutfellinger og sur vandig pletteringsopploesning til utfoerelse av fremgangsmaaten |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4138294A (pt) |
| JP (1) | JPS5490026A (pt) |
| AU (1) | AU4219578A (pt) |
| BE (1) | BE872509A (pt) |
| BR (1) | BR7807970A (pt) |
| DE (1) | DE2852432A1 (pt) |
| DK (1) | DK550078A (pt) |
| ES (1) | ES475680A1 (pt) |
| FR (1) | FR2411251A1 (pt) |
| GB (1) | GB2009790B (pt) |
| IT (1) | IT1109005B (pt) |
| NL (1) | NL7811914A (pt) |
| NO (1) | NO784051L (pt) |
| NZ (1) | NZ189069A (pt) |
| SE (1) | SE7812445L (pt) |
| ZA (1) | ZA786586B (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0037634A1 (en) * | 1980-02-28 | 1981-10-14 | Albright & Wilson Limited | Zinc plating baths and additives therefor |
| JPS6130695A (ja) * | 1984-07-20 | 1986-02-12 | Kawasaki Steel Corp | 外観色調にすぐれたＺｎ−Ｆｅ系合金電気めつき鋼板の製造方法 |
| US7454030B2 (en) * | 2003-08-27 | 2008-11-18 | Graber Curtis H | Subwoofer with cascaded linear array of drivers |
| CN103184479B (zh) * | 2013-04-12 | 2015-09-30 | 北京美坚默克化工产品有限公司 | 一种镀锌组合光亮剂及其制备方法 |
| US10458032B2 (en) * | 2017-06-15 | 2019-10-29 | Rohm And Haas Electronic Materials Llc | Environmentally friendly nickel electroplating compositions and methods |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1524719A (fr) * | 1966-05-28 | 1968-05-10 | Max Schlotter Fabrik Fuer Galv | Bain acide électrolytique de zincage brillant |
| DE1521029C3 (de) | 1966-05-28 | 1984-01-19 | Dr.-Ing. Max Schlötter GmbH & Co KG, 7340 Geislingen | Saures galvanisches Glanzzinkbad |
| US3694330A (en) * | 1967-05-23 | 1972-09-26 | Joachim Korpium | Electroplating bath for depositing bright zinc plates |
| ES369249A1 (es) * | 1968-08-10 | 1971-05-16 | Shering A G | Procedimiento para la produccion de un bano de cinc galva- nico acido para la deposicion de revestimientos de cinc bri-llantes. |
| US3730855A (en) * | 1968-12-18 | 1973-05-01 | Conversion Chem Corp | Method and composition for electroplating zinc |
| US3891520A (en) * | 1970-04-09 | 1975-06-24 | Schering Ag | Acid, galvanic zinc bath |
| US3878069A (en) * | 1970-08-15 | 1975-04-15 | Todt Hans Gunther | Acid zinc galvanic bath |
| US3778359A (en) * | 1972-03-08 | 1973-12-11 | F Popescu | Zinc electroplating baths and process |
| US3729394A (en) * | 1972-04-17 | 1973-04-24 | Conversion Chem Corp | Composition and method for electrodeposition of zinc |
| US3821095A (en) * | 1972-09-26 | 1974-06-28 | M & T Chemicals Inc | Zinc electroplating process and electrolyte therefor |
| US3919056A (en) * | 1972-09-26 | 1975-11-11 | M & T Chemicals Inc | Zinc plating process and electrolytes therefor |
| US3855085A (en) * | 1973-06-14 | 1974-12-17 | Du Pont | Acid zinc electroplating electrolyte, process and additive |
| DE2346942C3 (de) * | 1973-09-18 | 1978-10-26 | Dr.-Ing. Max Schloetter Gmbh & Co Kg, 7340 Geislingen | Schwach saures Glanzzinkbad |
| US4070256A (en) * | 1975-06-16 | 1978-01-24 | Minnesota Mining And Manufacturing Company | Acid zinc electroplating bath and process |
-
1977
- 1977-12-06 US US05/857,881 patent/US4138294A/en not_active Expired - Lifetime
-
1978
- 1978-11-22 ZA ZA00786586A patent/ZA786586B/xx unknown
- 1978-12-01 NO NO784051A patent/NO784051L/no unknown
- 1978-12-01 NZ NZ189069A patent/NZ189069A/xx unknown
- 1978-12-04 BR BR7807970A patent/BR7807970A/pt unknown
- 1978-12-04 DE DE19782852432 patent/DE2852432A1/de not_active Withdrawn
- 1978-12-04 ES ES475680A patent/ES475680A1/es not_active Expired
- 1978-12-04 SE SE7812445A patent/SE7812445L/xx unknown
- 1978-12-04 BE BE872509A patent/BE872509A/fr unknown
- 1978-12-05 DK DK550078A patent/DK550078A/da not_active Application Discontinuation
- 1978-12-05 AU AU42195/78A patent/AU4219578A/en active Pending
- 1978-12-05 FR FR7834234A patent/FR2411251A1/fr active Granted
- 1978-12-05 GB GB7847210A patent/GB2009790B/en not_active Expired
- 1978-12-05 JP JP15046678A patent/JPS5490026A/ja active Pending
- 1978-12-05 IT IT09655/78A patent/IT1109005B/it active
- 1978-12-06 NL NL7811914A patent/NL7811914A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2009790B (en) | 1982-04-21 |
| BE872509A (fr) | 1979-03-30 |
| IT7809655A0 (it) | 1978-12-05 |
| ES475680A1 (es) | 1979-04-16 |
| SE7812445L (sv) | 1979-06-07 |
| AU4219578A (en) | 1979-06-14 |
| NL7811914A (nl) | 1979-06-08 |
| US4138294A (en) | 1979-02-06 |
| NZ189069A (en) | 1980-10-08 |
| IT1109005B (it) | 1985-12-16 |
| JPS5490026A (en) | 1979-07-17 |
| BR7807970A (pt) | 1979-07-31 |
| DK550078A (da) | 1979-06-07 |
| DE2852432A1 (de) | 1979-06-07 |
| FR2411251B1 (pt) | 1982-03-26 |
| ZA786586B (en) | 1979-10-31 |
| FR2411251A1 (fr) | 1979-07-06 |
| GB2009790A (en) | 1979-06-20 |
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