| 摘要 |
PROBLEM TO BE SOLVED: To form a reflection film having both of a protective coating function and an adhering function by containing a specified epoxyacrylate and a N= vilnyl lactam compd. into a photosetting component and containing a specified weight range of a photopolymn. initiator. SOLUTION: The photosetting component contains a bifunctional urethane acrylate, epoxyacrylate having a bisphenol-A structure and a N-vinyl lactam compd. expressed by formula I (m is an integer 3 to 5). The photopolymn. initiator contains a benzoylphosphine oxide compd. expressed by formula II by >=0.1 and <=5.0 wt.% to the amt. of the whole photosetting component. In formula II, R<1> , R<2> , R<3> , R<4> , R<5> , R<6> are independently hydrogen, 1 to 4C alkyl, 1 to 4C alkoxy or halogen, X is 1 to 10C alkyl or unsubtd. phenyl or substd. phenyl with substitution of groups selected from 1 to 4C alkyl, 1 to 4C alkoxy and halogen, and n is 0 or 1. |
