POLYMER BEAD WITH EXCELLENT HEAT RESISTANCE AND UNIFORM SIZE CAPABLE OF OBTAINING HIGH LUMINANCE BY BEING USED IN A LIGHT DIFFUSING PLATE, AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A polymer bead is provided to have excellent luminance, thermal stability, and solvent resistance when used as a light diffusing agent.;CONSTITUTION: A polymer bead comprises a spherical particle comprising a crosslinking polymer of a vinyl-based monomer, and a fluorescent whitening agent between a crosslinked polymer and a crosslinked structure. The crosslinked polymer comprises a polymer crosslinked by a polyfunctional crosslinking agent. A manufacturing method of the polymer bead comprises a step of emulsifying a monomer aqueous solution which comprises a vinyl-based monomer, fluorescent whitening agent, initiator, and a suspension stabilizer; and a step of forming a polymer bead by crosslinking polymerizing the emulsifier.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Example 1; (BB) Comparative example 1;