{TAIL ~ 1.70 wt %} of {HEAD ~ 2,4,6 trimethylbenzoyldiphenylphosphine oxide type photoinitiator} 
{ TAIL ~ 1.70 wt % } of { HEAD ~ 2,4,6 trimethylbenzoyldiphenylphosphine oxide type photoinitiator }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD