Patent ID: 9644104
Date: 2017-05-09
CPC Classifications: C08F,C09D

Claim:
1. A photopolymerizable composition comprising: diethylene glycol dimethacrylate; b1, where b1 is 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1-on; b2, where b2 is 2-hydroxy-1-{4-[4-(2-hydroxy-2-methyl-propionyl)benzyl]phenyl}-2-methyl-1-propane-1-on; and b3, where b3 is oligo {2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]propanone}, wherein a content of diethylene glycol dimethacrylate is 25% by weight or more, wherein a non-zero content of b2 is less than 2.5% by weight, and wherein a non-zero content of b3 is less than 3% by weight.