FORMING CATALYTIC SITES FROM REDUCIBLE SILVER COMPLEXES

摘要

A non-aqueous metal catalytic composition includes (a) a silver complex comprising reducible silver ions, (b) an organic phosphite, (c) an oxyazinium salt silver ion photoreducing agent, (d) a hindered pyridine, (e) a photocurable component, a non-curable polymer, or combination of a photocurable component and a non-curable polymer, and (f) a photosensitizer different from all components (a) through (e) in the non-aqueous metal catalytic composition, in an amount of at least 1 weight %. This non-aqueous metal catalytic composition can be used to form silver metal particles in situ during suitable reducing conditions. The silver metal can be provided in a suitable layer or pattern on a substrate, which can then be subsequently subjected to electroless plating to form electrically-conductive layers or patterns for use in various articles or as touch screen displays in electronic devices.

主权项

1. A method for providing an article, comprising:
providing a metal catalytic layer or a metal catalytic pattern composed of a non-aqueous metal catalytic composition on a substrate, the non-aqueous metal catalytic composition comprising:
(a) a silver complex comprising reducible silver ions, in an amount of at least 2 weight %,(b) an organic phosphite in an amount of at least 2 weight %,(c) an oxyazinium salt silver ion photoreducing agent in an amount of at least 2 weight %,(d) a hindered pyridine in an amount of at least 5 weight %,(e) a photocurable component, non-curable polymer, or combination of a photocurable component and a non-curable polymer, and(f) a photosensitizer different from all components (a) through (e) in the non-aqueous metal catalytic composition, in an amount of at least 1 weight %,all amounts being based on the total amount of components (a) through (f) in the non-aqueous metal catalytic composition,to provide a precursor article comprising the metal catalytic layer or the metal catalytic pattern composed of the non-aqueous metal catalytic composition.