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