Patent ID: 6572977
Filing Date: 2003-06-03
Classification: B32B,C09B,C09K,Y10T

Abstract:
A fluorescent red composition comprising:a. a perylene dicarboximide dye having the formula â€ƒwherein R1 and R2 are identical or different C1-C18 alkyl which are unsubstituted or substituted by C1-C18 alkoxy, C1-C18 alkanoyloxy, C1-C18 alkylthio, hydroxyl, phenyl, phenoxy or phenylthio; cyclohexyl which is unsubstituted or substituted by hydroxyl, C1-C5 alkyl, methoxy, ethoxy, C1-C2 alkylthio, C1-C18 alkanoyloxy or C1-C18 alkoxycarbonyl; phenyl which is mono-substituted or di-substituted in the ortho position by C1-C5 alkyl or chlorine or by C1-C5 alkyl and chlorine; or naphthyl; X, Y and Z are each individually chlorine, bromine or â€”OR3, and R3 is unsubstituted phenyl, or phenyl substituted by cyano, halogen, nitro, C1-C18 alkyl or a mixture thereof, or naphthyl or anthryl; b. a film forming resin; and c. a solvent; wherein the composition provides a coating having chromaticity coordinates (x, y) within the area defined by (0.648, 0.351), (0.735, 0.265), (0.629, 0.281) and (0.565, 0.346) in terms of the CIE 1931 Standard Colorimetric System and measured using 0/45 geometry and evaluated with CIE Standard Illuminant D65 and a fluorescence luminance factor of at least about 8.