| abstract |
The invention relates to a composition based on monomers, oligomers and / or polymers capable of being involved in cationic polymerization (s) and / or crosslinking (s) reactions, comprising reactive functional radicals capable of forming inter and catenary bridging, so as to obtain a film, a coating or a polymerized and / or crosslinked mass (for example composite) material having a certain hardness and a certain mechanical strength. This composition comprises a novel polymerization initiator and / or crosslinking system formed by an iodonium borate photoinitiator and a photosensitizer chosen from diether anthracenes, di-ethers naphthalenes and / or di-ether benzenes. This initiator system makes it possible to use a smaller quantity of iodonium borate with respect to known systems, for equivalent efficiency and to give off an acceptable odor, especially after polymerization / crosslinking. |