U.V. Curable composition
AssigneeShipley Company, L.L.C.
InventorAlfred P. Orio
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Abstract
A U.V. curable coating composition useful for electronics manufacture comprising an acrylated or methacrylated oligomer and a mixture of a multifunctional and monofunctional monomer. When further combined with an elongated filler, the U.V. curable composition is suitable for use as a permanent solder mask that adheres to metals conventionally used in electronics manufacture following wave soldering.
Claims32
A.U.V. curable coating composition comprising an acrylated or methacrylated oligomer in a concentration of from 30 to 70 weight percent of the composition, a photoinitiator in a concentration of from 1 to 12 weight percent of the composition and a monomer that is a mixture of an acrylate or methacrylate of an alkoxylated polyol having an average functionality of 2 or greater and a monofunctional ethylenically unsaturated compound having a single terminal ethylenic group, each in a concentration of from 5 to 35 percent of the composition.
A U.V. curable solder mask composition comprising an acrylated or methacrylated oligomer in a concentration of from 30 to 70 weight percent of the composition, a photoinitiator in a concentration of from 1 to 12 weight percent of the composition, a monomer that is a mixture of an acrylate or methacrylate of an alkoxylated polyol having an average functionality of 2 or greater and a monofunctional ethylenically unsaturated compound having a single terminal ethylenic group, each in a concentration of from 5 to 35 percent of the composition and a filler where at least 50 percent of the particles are elongated in a concentration of from 10 to 70 weight percent of the other components of the composition.
Dependencies are inferred from the claim text.