| 摘要 |
<p>A photochromic product of curing is produced by irradiating a photopolymerizable composition comprising: (A) a radical-polymerizable monomer, (B) an ultraviolet polymerization initiator exhibiting a main absorption in the ultraviolet region and a molar absorption coefficient of 150 1/(mol.cm) or above at 400 nm, and (C) a photochromic compound with an active energy radiation exhibiting an emission spectrum at 400 nm or above as the main spectrum to cure the composition. The above composition can easily be polymerized in a short time to give a product of curing exhibiting excellent photochromism.</p> |
