Patent ID: 8906505
Filing Date: 2014-12-09
Classification: B05D,B32B,C08F,C09D,G02B,Y10T

Abstract:
1. A composition for colloidal crystals, comprising: core-shell particles (A) each having a core and a shell; and a monomer (B1) having the following formula (1), wherein the core-shell particles (A) constitute 25% to 65% by weight of the composition, and the monomer (B1) constitutes 35% to 75% by weight of the composition, the core has an average particle size in the range of 50 to 900 nm, the shell is formed of a linear polymer composed of at least one of styrene and a monomer (B2) having the following formula (1), one end of the linear polymer is covalently bonded to the core, and the refractive index of the core (n(core)) satisfies the following formulae (2) and (3): wherein R wherein n(shell) denotes the refractive index of the shell, and wherein n(B) denotes the refractive index of the monomer (B1) after curing.