Patent ID: 8586283

Claim:
A curable liquid formulation comprising: (i) one or more near-infrared absorbing triphenylamine-based dyes having the following generic formula: wherein at least one of R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 is selected from the group consisting of a cyclic ether group, a hydroxyl group, and a combination thereof and the remaining R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 independently represent a hydrogen atom or a hydrocarbon group containing at least one carbon atom, wherein a hydrocarbon group optionally includes one or more heteroatoms selected from nitrogen, oxygen, sulfur, and halide atoms; wherein one or more nitrogen atoms are cation radicals, and the one or more cation radicals are charge balanced by one or more anions; and (ii) one or more casting solvents.