Invention Grant
US09434852B2 Photocurable compositions with dispersed carbon-coated metal particles 有权
具有分散的碳涂覆金属颗粒的可光固化组合物

Photocurable compositions with dispersed carbon-coated metal particles
Abstract:
A non-aqueous photocurable composition contains dispersed carbon-coated metal particles in an amount of at least 10 weight %, and the dispersed carbon-coated metal particles have a median diameter of less than 0.6 μm. These particles are dispersed with a particle dispersing agent that has a weight average molecular weight (Mw) of at least 2,000 and up to and including 100,000 and comprises nitrogen-containing units. Such compositions include an organic diluent as well as suitable photocurable components that can be used for example in acid-catalyzed or free radical chemistries. When the non-aqueous photocurable composition contains up to and including 25 weight % of the dispersed carbon-coated metal particles, it exhibits no visual settling when subjected to a settling test of at least 24 hours at 20° C. The non-aqueous photocurable compositions can be used to provide photocured metallic patterns for various devices that have a touch screen display.
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