| abstract |
PURPOSE: To obtain the title composition improved in repetition durability by incorporating a specified singlet oxygen quencher and a fulgide compound into a transparent resin. n CONSTITUTION: A transparent resin (a) (e.g. polymethyl methacrylate) is mixed with 1-40wt.% singlet oxygen quencher (b) comprising a benzenedithiol nickel complex of formula I (wherein X is halogen or alkyl; n is 1 to 4; A is a quaternary ammonium group) [e.g. bis(1,2,3-trichloro-5,6-dithiopbenolato)nickel(II) tetra- n-butylammonium) and 10-50wt.% fulgide compound (c) (e.g. a compound of formula II). n COPYRIGHT: (C)1990,JPO&Japio |