Patent ID: 9708442
Date: 2017-07-18
CPC Classifications: B29C,B33Y,C08G,G03F

Claim:
1. A UV/vis radiation curable composition for additive fabrication comprising: a photoinitiating package comprising: a cationically curable constituent comprising from about 5 wt. % to about 40 wt. % of a free-radically curable component; and optionally, up to about 50 wt. % of one or more additives; wherein the Norrish Type I photoinitiator is an alkyl-, aryl-, or acyl-substituted compound which possesses an atom selected from the group consisting of silicon, germanium, tin, and lead; wherein the accelerator comprises an electron-donating substituent attached to a vinyl group; and wherein all weight percentages are listed relative to the weight of the entire composition.