GRAIN AGGREGATE, PREPARATION METHOD THEREOF AND LIGHT DIFFUSING AGENT

摘要

PURPOSE: A grain aggregate, its preparation method, a light diffusing agent using the grain aggregate and a light diffusing formed product using the light diffusing agent are provided, wherein grain aggregate is improved in heat resistance, solvent resistance, strength and light diffusing properties. CONSTITUTION: The grain aggregate is formed by bonding a plurality of cross-linking polymeric grains via a binder having a reactive functional group. It is formed by spray drying the grain dispersion solution containing a plurality of grains and a binder having a reactive functional group. Preferably a plurality of grains comprises organic materials; or comprises grains formed with inorganic materials and grains formed with organic materials. A plurality of grains has an average grain size of 0.01-1 micrometers and the average size of grain aggregate is 2-200 micrometers.