DED0012765MA - - Google Patents
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- DED0012765MA DED0012765MA DED0012765MA DE D0012765M A DED0012765M A DE D0012765MA DE D0012765M A DED0012765M A DE D0012765MA
- Authority
- DE
- Germany
- Prior art keywords
- copper
- baths
- contain
- moles
- sulfate
- 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.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 239000000654 additive Substances 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 11
- 230000002378 acidificating Effects 0.000 claims description 9
- UMGDCJDMYOKAJW-UHFFFAOYSA-N Thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 8
- -1 aliphatic alcohols Chemical class 0.000 claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- ARUVKPQLZAKDPS-UHFFFAOYSA-L Copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N oxane Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- ALSTYHKOOCGGFT-KTKRTIGZSA-N Oleyl alcohol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 150000008040 ionic compounds Chemical class 0.000 claims description 3
- 229940055577 oleyl alcohol Drugs 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 2
- WABAEEDHTRIFPM-UHFFFAOYSA-N hydroxy-sulfanyl-sulfanylidene-$l^{4}-sulfane Chemical compound SS(S)=O WABAEEDHTRIFPM-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 125000000565 sulfonamide group Chemical group 0.000 claims description 2
- 125000001174 sulfone group Chemical group 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims 6
- 238000000034 method Methods 0.000 claims 5
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-Naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 claims 3
- 239000007859 condensation product Substances 0.000 claims 3
- 239000000047 product Substances 0.000 claims 3
- 159000000000 sodium salts Chemical class 0.000 claims 3
- 150000001735 carboxylic acids Chemical class 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims 2
- 229910052708 sodium Inorganic materials 0.000 claims 2
- 239000011734 sodium Substances 0.000 claims 2
- MWZFQMUXPSUDJQ-RRABGKBLSA-M sodium;[(E)-octadec-9-enyl] sulfate Chemical compound [Na+].CCCCCCCC\C=C\CCCCCCCCOS([O-])(=O)=O MWZFQMUXPSUDJQ-RRABGKBLSA-M 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 2
- VJXYKHZISPADJF-KVVVOXFISA-N (Z)-octadec-9-enoic acid;oxirane Chemical compound C1CO1.CCCCCCCC\C=C/CCCCCCCC(O)=O VJXYKHZISPADJF-KVVVOXFISA-N 0.000 claims 1
- 150000001298 alcohols Chemical class 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 235000014113 dietary fatty acids Nutrition 0.000 claims 1
- 239000000194 fatty acid Substances 0.000 claims 1
- 150000007529 inorganic bases Chemical class 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910001092 metal group alloy Inorganic materials 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 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 claims 1
- 150000007530 organic bases Chemical class 0.000 claims 1
- MATKDLDRCBUYET-UHFFFAOYSA-M sodium;hexadec-1-enyl sulfate Chemical compound [Na+].CCCCCCCCCCCCCCC=COS([O-])(=O)=O MATKDLDRCBUYET-UHFFFAOYSA-M 0.000 claims 1
- 150000003871 sulfonates Chemical class 0.000 claims 1
- 125000000101 thioether group Chemical group 0.000 claims 1
- ZJHHPAUQMCHPRB-UHFFFAOYSA-N urea urea Chemical compound NC(N)=O.NC(N)=O ZJHHPAUQMCHPRB-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 235000013877 carbamide Nutrition 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N Oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 210000004940 Nucleus Anatomy 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- FULZLIGZKMKICU-UHFFFAOYSA-N Phenylthiocarbamide Chemical compound NC(=S)NC1=CC=CC=C1 FULZLIGZKMKICU-UHFFFAOYSA-N 0.000 description 1
- NVBFHJWHLNUMCV-UHFFFAOYSA-N Sulfamide Chemical group NS(N)(=O)=O NVBFHJWHLNUMCV-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- SQSPRWMERUQXNE-UHFFFAOYSA-N diaminomethylideneurea Chemical compound NC(=N)NC(N)=O SQSPRWMERUQXNE-UHFFFAOYSA-N 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- KQVLODRFGIKJHZ-UHFFFAOYSA-N methylenediurea Chemical compound NC(=O)NCNC(N)=O KQVLODRFGIKJHZ-UHFFFAOYSA-N 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- VPJDULFXCAQHRC-UHFFFAOYSA-N prop-2-enylurea Chemical compound NC(=O)NCC=C VPJDULFXCAQHRC-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
Description
Tag der Anmeldung: 18. Juli 1952 Bekanntgemacht am 31. Oktober 1956Registration date: July 18, 1952. Advertised on October 31, 1956
DEUTSCHES PATENTAMT GERMAN PATENT OFFICE
Es wurde gefunden, daß man galvanische Kupferniederschläge von großer Kornfeinheit erhält, wenn man den üblichen sauren Galvanisierungsbädern säurebeständige, anionaktive.oder nicht ionogene Verbindungen mit Thioäther-, Mercapto-, SuIfoxyd-, Sulfon- oder Sulfonamidgruppen im Molekül zusetzt.' Diese Zusätze ergeben Niederschläge von großer Kornfeinheit, die etwa der entspricht, wie man sie in cyanidischen Kupferbädern erhält; ferner erreicht man damit eine erhöhte Streufähigkeit der Bäder. Die aus den üblichen sauren Kupferbädern anfallenden Niederschläge sind gewöhnlich matt und erfordern, falls eine blanke Oberfläche gewünscht wird, eine erhebliche Schwabbelarbeit. Die unter Verwendung der vorstehend genannten Zusätze erhaltenen Kupferniederschlage sind so hochwertig, daß ein anschließendes Polieren wesentlich erleichtert wird, wenn es nicht überhaupt überflüssig ist. Außerdem haben diese Zusätze ausgezeichnete einebnende Wirkung. Ein mit 300er Schmirgel bearbeitetes Werkstück war nach einer Auflage von 0,02 mm Kupfer fast völlig glatt. Die erhaltenen Ausbeuten sind nicht unterschiedlich gegenüber den üblichen Verkupferungsbädern; die zulässigen Temperatur- und Stromdichtebereiche sind sehr groß.It has been found that electroplating copper can be used of great fineness of grain obtained using the usual acidic galvanizing baths acid-resistant, anionic or non-ionic compounds with thioether, mercapto, sulfoxide, Adds sulfone or sulfonamide groups in the molecule. ' These additives result in precipitates of great grain fineness, which roughly corresponds to that obtained in cyanidic copper baths; furthermore one achieves thus an increased throwing power of the baths. The precipitates from the usual acidic copper baths are usually matte and, if a bare surface is desired, require a substantial amount Buffing work. The copper precipitate obtained using the above additives are of such high quality that subsequent polishing is made much easier, if not at all is superfluous. In addition, these additives have an excellent leveling effect. One with 300 Workpiece machined with emery was almost completely smooth after a layer of 0.02 mm copper. The received Yields are not different compared to the usual copper plating baths; the permissible The temperature and current density ranges are very large.
Beispielsweise können die Zusätze aus Verbindungen bestehen, die durch Schweflung von Oleylalköhol und anschließende Sulfatierung und Neutralisation mit Alkalilauge erhalten werden, weiterhin oberflächen-For example, the additives can consist of compounds formed by sulfurization of oleyl alcohol and subsequent sulfation and neutralization with alkali can be obtained, further surface-
SOe «60/396SOe «60/396
D 12765 VI/48 aD 12765 VI / 48 a
aktive, im Kohlenwasserstoffrest Schwefel enthaltende Verbindungen, die durch Schweflung von Oleylalkohol oder von Ölsäure mit anschließender Anlagerung von io bis 30 Mol Äthylenoxyd erhalten werden. Die Her-' 5 stellung solcher Verbindungen ist Gegenstand des Patents 902 737. Gegenstand der vorliegenden Erfindung sind daher weder die Herstellung der Zusätze noch die Bäder mit solchen Zusätzen, sondern lediglich die Verwendung derartig zusammengesetzter galvanischer Kupferbäder.active compounds containing sulfur in the hydrocarbon residue, which are produced by sulfurization of oleyl alcohol or from oleic acid with subsequent addition of 10 to 30 moles of ethylene oxide. The her- ' 5 position of such connections is the subject of patent 902 737. Subject of the present invention are therefore neither the manufacture of the additives nor the baths with such additives, but merely the use of galvanic copper baths composed in this way.
Die Bäder enthalten die Zusätze in Mengen von 0,1 bis 10 g pro Liter Badflüssigkeit. Die angewendeten Stromdichten liegen bei 0,5 bis 15 Amp./dm2. Bei größeren Stromdichten ist eine schnellere Bewegung der Kathode oder ,eine auf'andere Art hervorgerufene Bewegung der Badflüssigkeit notwendig. Der Gehalt an Kupfersulfat (Cu SO4-5H2O) und Schwefelsäure kann in weiten Grenzen variiert werden. Man arbeitet zweckmäßig bei Raumtemperatur (15 bis 35q C), obwohl zufriedenstellende Ergebnisse auch in dem weiteren Temperaturbereich von 5 bis 50° C zu erzielen sind.The baths contain the additives in quantities of 0.1 to 10 g per liter of bath liquid. The current densities used are between 0.5 and 15 Amp./dm 2 . In the case of higher current densities, a faster movement of the cathode or, in some other way, movement of the bath liquid is necessary. The content of copper sulfate (Cu SO 4 -5H 2 O) and sulfuric acid can be varied within wide limits. One works suitably at room temperature (15 to 35 C q), although satisfactory results can be achieved also in the wider temperature range of 5 to 50 ° C.
Man kann die Eigenschaften der Kupferbäder nach vorliegender Erfindung dadurch verbessern, daß man als weitere Zusätze Harnstoff, Thioharnstoff oder . deren Abkömmlinge verwendet, die als Zusätze zu sauren galvanischen Kupferbädern bekannt sind. Der Zusatz von Harnstoff bewirkt, daß man die Zusatz-You can improve the properties of the copper baths according to the present invention by as further additives urea, thiourea or. their descendants used as additives too acidic galvanic copper baths are known. The addition of urea has the effect that the additive
. mengen der obengenannten schwefelhaltigen, oberflächenaktiven Verbindungen erhöhen kann, ohne daß dabei ein Dunkelwerden, der Kupferniederschläge eintritt. Thioharnstoff bewirkt eine Glanzverbesserüng, die die Niederschläge aus den halbglänzenden in den spiegelglänzenden Zustand überführt, so daß sie mit Vorteil anschließend unmittelbar glanzvernickelt und glanzverchromt werden können. An Stelle der genannten Verbindungen können auch entsprechende Abkömmlinge verwendet werden, beispielsweise Allylharnstoff, Alkylharnstoffe, ■ Methylendiharnstoff, Guanylharnstoff, Biuret u. dgl., sowie entsprechende Thioharnstoffabkömmlinge, wie beispielsweise Phenylthioharnstoff, Alkylthioharnstoffe u. dgl.. can increase amounts of the above-mentioned sulfur-containing, surface-active compounds without at the same time a darkening, the copper precipitation occurs. Thiourea improves the gloss, which converts the precipitates from the semi-glossy to the mirror-glossy state, so that they with The advantage is that they can be bright nickel-plated and bright chrome-plated immediately afterwards. Instead of the mentioned Compounds can also be used corresponding derivatives, for example allyl urea, Alkyl ureas, ■ methylenediurea, guanyl urea, Biuret and the like, as well as corresponding thiourea derivatives, such as phenylthiourea, Alkylthioureas and the like
Als weitere glanzgebende Zusätze kann man bei den Bädern vorliegender Erfindung für sich oder in Verbindung mit Thioharnstoff oder dessen Abkömmlingen wasserlösliche Salze ein- oder mehrkerniger, gegebenenfalls Oxygruppen enthaltender aromatischer Mono- oder Polysulfosäuren verwenden. In den mehrkernigen aromatischen Sulfosäuren körinen die aromatischen Kerne unmittelbar oder über Methylengruppen, SuIfamidgruppen, Sulfoestergruppen oder Sulfongruppen ■verknüpft sein. Es handelt sich dabei um-wasserlösliche Salze aromatischer Sulfonsäuren, wie sie einer bekannten Gruppe synthetischer Gerbstoffe zugrundeFurther gloss-giving additives can be used in the baths of the present invention individually or in combination with thiourea or its derivatives, water-soluble salts of mononuclear or polynuclear, optionally Use aromatic mono- or polysulfonic acids containing oxy groups. In the multi-core aromatic sulfonic acids corine the aromatic nuclei directly or via methylene groups, sulfamide groups, Sulfoester groups or sulfonic groups ■ be linked. These are water-soluble Salts of aromatic sulfonic acids, such as those based on a known group of synthetic tanning agents
liegen. - ' .lie. - '.
■ Man kann die erfindungsgemäßen Mittel auch mit üblichen Zusätzen kombinieren, wie sie in der Galvanisierurigstechnik angewendet werden, also zum Beispiel ■mit Glanzmitteln, Ausgleichsmitteln oder Mitteln, die die Porenbildung verhindern. Weiterhin hat sich als besonders vorteilhaft der Zusatz von üblichen oberflächenaktiven Substanzen, insbesondere Netzmitteln, erwiesen, d, h." bekannten ;anionaktiven Mitteln,, wieThe agents according to the invention can also be combined with conventional additives such as those used in electroplating technology, for example with brighteners, leveling agents or agents that prevent pore formation. . Furthermore, it has to be particularly advantageous, the addition of conventional surface-active substances, in particular wetting agents, proved, d, h known "; anionic agents ,, such as
Claims (8)
Deutsche Patentschriften Nr. 837 029, 832 982, 758075;
USA.-Patentschrift Nr. 2 582 233.Considered publications:
German Patent Nos. 837 029, 832 982, 758075;
U.S. Patent No. 2,582,233.
Family
ID=
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