The optical disk 2, wherein the amount of the acryloylmorpholine is from 10 to 30 parts by {TAIL ~ weight} per {HEAD ~ 100 parts} by weight of the ingredient  
The optical disk 2 , wherein the amount of the acryloylmorpholine is from 10 to 30 parts by { TAIL ~ weight } per { HEAD ~ 100 parts } by weight of the ingredient
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH