UV curable catalyst compositions
UV curable compositions and methods for depositing one or more metal or metal alloy films on substrates are disclosed. The UV curable compositions contain a catalyst, one or more carrier particles, one or more UV curing agents, and one or more water-soluble or water-dispersible organic compounds. Metal or metal alloys may be deposited on the substrates by electroless or electrolytic deposition.
1. A composition comprising a catalyst, the catalyst comprises a hydrous metal oxide or hydroxide of a catalytic metal, one or more carriers having average particle sizes from 5 nm to 900 nm, the one or more carriers are in amounts of 30 times or greater than the weight of the catalytic metal in the hydrous metal oxide or hydroxide, one or more UV curing agents, and one or more water-soluble or water-dispersible organic compounds.
2. The composition of claim 1 , wherein the catalytic metal comprises silver, gold, platinum, palladium, indium, rubidium, ruthenium, rhodium, osmium, iridium, copper, cobalt, nickel, or iron.
3. The composition of claim 1 , wherein the carrier particles comprise multi-valent cation and anion pairs, metal oxides, silicates, silica, or mixtures thereof.
4. The composition of claim 1 , wherein the UV curing agent comprises onium salts, free radical generators, or mixtures thereof.
5. The composition of claim 1 , wherein the water-soluble or water-dispersible organic compound comprises a polyurethane, epoxide, or mixtures thereof.
6. The composition of claim 1 , wherein the water-soluble, or water-dispersible organic compound comprises acrylic homopolymers, acrylic copolymers, lactic acid homopolymers or copolymers, polyamides, polyesters, alkyd resins, ethylene copolymers, chlorinated homopolymers, copolymers of vinyl chloride, polymers of vinyl acetate, polymers of vinyl propionate, cyclisized rubber, chlorinated rubber, nitrocellulose, ethyl cellulose, ethylhydroxy cellulose, coumarine-indene resins, terpene resins, polyvinyl acetal resins, cellulose esters, shellac, poly alkylglycols, starch, carbohydrates, or mixtures thereof.
7. The composition of claim 1 , wherein the one or more carriers are in amounts of 55 to 330 times the weight of the catalytic metal in the hydrous metal oxide or hydroxide.
8. The composition of claim 7 , wherein the one or more carriers are in amounts of 60 to 300 times the weight of the catalytic metal in the hydrous metal oxide or hydroxide.