| abstract |
The present invention provides a novel penzophenone-based polymerizable dye having a urethane bond, a manufacturing method thereof, and an ophthalmic lens including the polymerizable dye. Benzophenone type polymeric dye represented by following General formula (1).n n n n n n n n R 1 and R 2 are each independently a hydrogen atom, a hydroxyl group, a carboxyl group, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, a sulfonic acid group or a benzyloxy group, and m and n are each independently 0 It is an integer of -18.R < 3> is any polymerizable functional group of a vinyl group, acryloyl group, and methacryloyl group). |