Patent ID: 8501033

Claim:
A liquid radiation curable resin comprising: (A) from about 0 to about 12 wt % of a cycloaliphatic epoxide having a linking ester group; (B) from about 30 to about 65 wt % of one or more epoxy functional components, wherein element (B) is not the same as element (A); (C) from about 10 to about 30 wt % of one or more oxetanes; (D) from about 1 to about 10 wt % of one or more polyols; (E) from about 2 to about 20 wt % of one or more radically curable (meth)acrylate components; (F) from about 2 to about 12 wt % of one or more impact modifiers; (G) from about 0.1 to about 8 wt % of one or more free radical photoinitiators; and (H) from about 0.1 to about 8 wt % of one or more cationic photoinitiators; wherein the one or more epoxy functional components other than (A) comprises from about 0.25 wt % to about 1.0 wt % of a mono-functional epoxy with an ethylhexyl chain; and wherein the liquid radiation curable resin has a viscosity at 30° C. of from about 200 cps to about 1300 cps.