Complexing agent for treating metallic and plastic surfaces

Details Complexing agent for treating metallic and plastic surfaces Complexing agent for treating metallic and plastic surfaces

C - Chemistry, Metallurgy

08

G

C08G 73/02 (2006.01) C08K 3/24 (2006.01) C08K 3/30 (2006.01) C08K 3/32 (2006.01) C08L 79/02 (2006.01) C09D 179/02 (2006.01) C23C 18/36 (2006.01) C23C 18/40 (2006.01) C25D 3/02 (2006.01) C25D 3/22 (2006.01) C25D 3/38 (2006.01) C25D 3/48 (2006.01) C25F 1/00 (2006.01) H05K 3/18 (2006.01)

Patent

CA 2489916

The invention relates to a composition for treating the surfaces of metals and for depositing metals or metal alloys on plastic surfaces. Said composition contains: a) at least one polymer, as constituent A, containing at least one structural unit of formula (I), wherein said structural unit can be part of a polymer main chain or can be bound to a polymer main chain by means of an anchor group, and M is hydrogen or an ammonium cation or a metal cation; b) water or another solvent, as constituent B, which is suitable for dissolving, dispersing, suspending or emulsifying the polymer (constituent A); c) optionally surface-active compounds, dispersants, suspension agents and/or emulsifying agents as constituent C; and either d) optionally a salt, an acid or a base based on transition metal cations, transition metal oxoanions, fluorometallates or lantanoids as constituent D, and/or e) at least one acid selected from the group consisting of phosphoric acid, sulphuric acid, sulfonic acid, nitric acid, hydrofluoric acid and hydrochloric acid as constituent E, or a base, and/or f) at least one metal oxide and/or metal salt as constituent F. The invention also relates to a method for treating the surfaces of metals, and to a method for depositing metals or metal alloys on a metallic or plastic surface, wherein the metallic or plastic surface is brought into contact with a polymer (constituent A). The invention further relates to the use of polymers (constituent A) for treating the surfaces of metals and for depositing metals or metal alloys on a metallic or plastic surface.

L'invention concerne une composition pour traiter la surface de m~taux et pour d~poser des m~taux ou des alliages de m~taux sur des surfaces plastiques, cette composition comprenant : a) au moins un polym­re comme composant A, contenant au moins une unit~ structurale de formule (I), cette unit~ structurale pouvant faire partie d'une cha¹ne principale polym­re ou pouvant Útre li~e ~ une cha¹ne principale polym­re par l'interm~diaire d'un groupe d'ancrage et M repr~sentant un atome d'hydrog­ne, un cation ammonium ou un cation m~tallique ; b) de l'eau ou un autre solvant comme composant B, dans lequel le polym­re (composant A) peut Útre dissous, dispers~, mis en suspension ou ~mulsionn~ ; c) ~ventuellement des compos~s tensioactifs, des agents de dispersion, des agents de suspension et/ou des agents d'~mulsion comme composant C ; et d) ~ventuellement un sel, un acide ou une base ~ base de cations de m~taux de transition, d'oxoanions de m~taux de transition, de fluorom~tallates ou de lantano~des comme composant D et/ou e) au moins un acide choisi dans le groupe comprenant l'acide phosphorique, l'acide sulfurique, l'acide sulfonique, l'acide nitrique, l'acide fluorhydrique et l'acide chlorhydrique comme composant E, ou une base et/ou f) au moins un oxyde m~tallique et/ou un sel m~tallique comme composant F. L'invention concerne en outre un proc~d~ pour traiter la surface de m~taux, ainsi qu'un proc~d~ pour d~poser des m~taux ou des alliages de m~taux sur une surface m~tallique ou plastique, consistant ~ mettre en contact la surface m~tallique ou plastique avec un polym­re A (composant A). L'invention concerne par ailleurs l'utilisation de polym­res (composant A) pour traiter la surface de m~taux et pour d~poser des m~taux ou des alliages de m~taux sur une surface m~tallique ou plastique.

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