PHOTOPOLYMERIZATION PROCESS AND COMPOSITION EMPLOYING A CHARGE TRANSFER COMPLEX AND CATIONIC PHOTOINITIATOR

摘要

A radiation curable coating composition is provided and includes an effectiv e amount of cationic photoinitiator, in combination with a charge transfer complex, the charge transfer complex comprising at least one electron withdrawing reactant component and at least one electron donating reactant component free radically reactive therewith, the electron withdrawing reacta nt component comprising an unsaturated nitrogen containing compound and the electron donating reactant component comprising an unsaturated compound havi ng at least one vinyl ether group, the electron donating reactant component may be separate from or structurally incorporated within the electron withdrawin g reactant component and an effective amount of a cationic photoinitiator. A photopolymerization process employing the composition is also provided.