Fluorescent polymer fine particle, method for forming...

Details Fluorescent polymer fine particle, method for forming... Fluorescent polymer fine particle, method for forming...

2011-08-30

2011-08-30

Sergent, Rabon (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C525S326100, C525S329400, C525S242000, C525S375000, C525S217000, C525S218000, C524S099000, C524S102000, C524S718000, C524S720000, C523S201000

Reexamination Certificate

active

08008379

ABSTRACT:
The invention provides a fluorescent polymer fine particle having at least: a polymer particle having a core-shell configuration having a hydrophobic core and a hydrophilic shell; and a fluorescent lanthanoid dye that is integrated with the polymer particle and has a fluorescent lanthanoid cation, wherein a hydrophilic polymer which forms the hydrophilic shell has 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. The invention further provides a method for forming the fluorescent polymer fine particle having at least dispersing and polymerizing a hydrophobic radical polymerizable monomer in an aqueous solvent in the presence of a radical generator and the presence of a components for forming a hydrophilic polymer which forms the hydrophilic shell; and introducing the fluorescent lanthanoid dye with the polymer particle.

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