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1. WO2007147605 - TRIPYRIDINIUM COMPOUNDS USED AS ADDITIVES IN AQUEOUS ALKALINE BATHS, DEVOID OF CYANIDE, FOR THE DEPOSITION OF ELECTROPLATED ZINC AND ZINC ALLOY COATINGS

Publication Number WO/2007/147605
Publication Date 27.12.2007
International Application No. PCT/EP2007/005492
International Filing Date 21.06.2007
IPC
C25D 3/22 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
3Electroplating; Baths therefor
02from solutions
22of zinc
C25D 3/56 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
3Electroplating; Baths therefor
02from solutions
56of alloys
C07D 211/00 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
211Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
CPC
C07D 213/82
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
213Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
02having three double bonds between ring members or between ring members and non-ring members
04having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
60with heteroatoms or with carbon atoms having three bonds to hetero atoms, with at the most one to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
78Carbon atoms having three bonds to hetero atoms, with at the most one to halogen, e.g. ester or nitrile radicals
81Amides; Imides
82in position 3
C25D 3/22
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING
3Electroplating: Baths therefor
02from solutions
22of zinc
C25D 3/565
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING
3Electroplating: Baths therefor
02from solutions
56of alloys
565containing more than 50% by weight of zinc
Applicants
  • ATOTECH DEUTSCHLAND GMBH [DE]/[DE] (AllExceptUS)
  • BRUNNER, Heiko [DE]/[DE] (UsOnly)
  • FRÖSE, Bernd [DE]/[DE] (UsOnly)
  • LANG, Nadine [DE]/[DE] (UsOnly)
  • THOM, Konstantin [DE]/[DE] (UsOnly)
  • VOGEL, Roland [DE]/[DE] (UsOnly)
Inventors
  • BRUNNER, Heiko
  • FRÖSE, Bernd
  • LANG, Nadine
  • THOM, Konstantin
  • VOGEL, Roland
Agents
  • BECKMANN, Claus
Priority Data
06 012 766.921.06.2006EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) TRIPYRIDINIUM-VERBINDUNGEN ALS ZUSÄTZE IN WÄSSRIGEN ALKALISCHEN, CYANIDFREIEN BÄDERN ZUR GALVANISCHEN ABSCHEIDUNG VON ZINK- UND ZINKLEGIERUNGSÜBERZÜGEN
(EN) TRIPYRIDINIUM COMPOUNDS USED AS ADDITIVES IN AQUEOUS ALKALINE BATHS, DEVOID OF CYANIDE, FOR THE DEPOSITION OF ELECTROPLATED ZINC AND ZINC ALLOY COATINGS
(FR) COMPOSÉS TRIPYRIDINIUM UTILISÉS COMME ADDITIFS DANS DES BAINS AQUEUX, ALCALINS ET SANS CYANURE PERMETTANT LE DÉPÔT GALVANIQUE DE COUCHES DE ZINC ET D'ALLIAGE DE ZINC
Abstract
(DE)
Die Erfindung betrifft ein wässriges alkalisches, cyanidfreies Elektrolytbad zur Abscheidung von Zink- und Zinklegierungsschichten auf Substratoberflächen, umfassend die folgenden Komponenten: (a) eine Zink-Ionen-Quelle und optional eine Quelle für weitere Metallionen, (b) Hydroxidionen und (c) mindestens eine Tripyridinium-Verbindung der allgemeinen Formel I. Das Elektrolytbad eignet sich zur galvanischen Abscheidung von glänzenden und ebenen Zink- oder Zinklegierungsüberzügen. Des weiteren stellt die Erfindung die Verwendung der Verbindungen der Formel I als Glanzbildner bereit.
(EN)
The invention relates to an aqueous alkaline electrolyte bath, devoid of cyanide, for depositing zinc and zinc alloy layers on substrate surfaces. Said bath comprises the following components: (a) a zinc ion source and optionally a source for additional metal ions; (b) hydroxide ions; and (c) at least one tripyridinium compound of general formula (I). The electrolyte bath is suitable for the deposition of glossy, uniform electroplated zinc and zinc alloy coatings. The invention also relates to the use of compounds of formula (I) as brighteners.
(FR)
L'invention concerne un bain électrolytique aqueux, alcalin et sans cyanure permettant de déposer des couches de zinc et d'alliage de zinc sur des surfaces de substrats. Le bain électrolytique contient les constituants suivants : (a) une source d'ions zinc et éventuellement une source d'ions métalliques d'un autre type, (b) des ions hydroxyde et (c) au moins un composé tripyridinium de formule générale I. Le bain électrolytique peut être utilisé pour le dépôt galvanique de couches de zinc et d'alliage de zinc brillantes et planes. L'invention concerne également l'utilisation des composés de formule I comme brillanteurs.
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