| 摘要 |
The present invention is to provide a novel benzophenone type polymerizable dye containing a urethane bond and an ophthalmic lens containing the said polymerizable dye. The benzophenone type polymerizable dye is shown by the following general formula (1)
(wherein R 1 and R 2 are respectively and independently a hydrogen atom, a hydroxyl group, a carboxylic group, a C1 to C8 alkyl group, a C1 to C8 alkoxy group, a sulfonic acid group or a benzyloxy group, and m and n are respectively and independently an integer of 0 to 18. R 3 is any of a polymerizable functional group of a vinyl group, an acryloyl group or a methacryloyl group).
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