Stable composition for catalytic deposition of silver
AssigneeSwissto12 SA
InventorsGaëlle Andreatta, Alba Finelli
Life of this patent
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Abstract
A solution including at least one metal salt, a reducing agent which makes it possible to reduce the metal salt, and a stabilising additive of formula F1 in which the Ra, Rb and Rc groups denote, independently of one another, an alkane, an alkene or an alkyne, which may be independently linear, branched or cyclic and which include from 1 to 20 carbon atoms, and where the Rd and Re groups denote, independently of one another, a hydrogen atom, or an alkane, an alkene or an alkyne, which may each be independently linear, branched or cyclic and which include from 1 to 20 carbon atoms.
Claims11
A solution(S) comprising at least one metal salt (M), a reducing agent (R) for reducing the metal salt (M), and a stabilizer (T), wherein the stabilizer (T) is a zwitterionic organic compound of formula (F1):
- in which the groups Ra, Rb, Rc denote, independently of one another, an alkane, an alkene, or an alkyne, being independently, linear, branched or cyclic and comprise from 1 to 20 carbon atoms, and where the groups Rd and Re denote, independently of one another, a hydrogen atom, or an alkane, an alkene, or an alkyne, being independently, linear, branched or cyclic and comprise from 1 to 20 carbon atoms,
- wherein the metal salt (M) comprises a silver salt combined with an organic or inorganic anion,
- wherein the reducing agent (R) consists of a cobalt salt, combined with an organic or inorganic anion, and
- wherein at least the metal salt (M) and the reducing agent (R) are dissolved in a solution that forms a bath.
Dependencies are inferred from the claim text.