Patent ID: 8008379
Filing Date: 2011-08-30
Classification: C08F,C08L

Abstract:
1. A fluorescent polymer fine particle comprising: a polymer particle having a core-shell configuration comprising a hydrophobic core and a hydrophilic shell; and a fluorescent lanthanoid dye that is integrated with the polymer particle and comprises a fluorescent lanthanoid cation, wherein: a hydrophilic polymer which forms the hydrophilic shell comprises a polymerizable unit and at least one hydrophilic unit selected from the group consisting of a hydrophilic (meth)acrylamide unit and a hydrophilic vinyl amine unit, a volume-average particle size of the fluorescent polymer particle is in a range of 0.01 to 20 μm, and the fluorescent lanthanoid dye comprises a nitrogen-containing heterocyclic ligand represented by the following Formula (L-I): Formula (L-I) wherein each of A wherein each of R