| 摘要 |
<p>PURPOSE: To obtain a resin compsn. which has no noticeable color under the normal light but emits distinct red light under ultraviolet rays and which exhibits high burability and luminance by incorporating a specific compd. into a resin compsn. CONSTITUTION: At least one compd. represented by formula I [wherein R1 and R2 are each H, a halogen, an alkyl, an alkoxy, amino, an alkylamino, a dialkylamino, an aryl, or an aralkyl; and A<+> is a cation represented by formula II (wherein R3 to R6 are each H, an alkyl, or an aralkyl provided two of them may combine to form a ring)] [e.g. tetrabutylammonium tetra 4,4,4- trifluoro-1-(2-thienyl)-1,3-butanedionate} europium complex] is incorporated into a resin compsn.</p> |
