| 摘要 |
PROBLEM TO BE SOLVED: To provide particles for display media: which are manufactured using a thermoplastic resin which has high thermal resistance and is easily pulverized; whose Izod impact strength is less than a predetermined strength value and a load-deflection temperature is not less than a predetermined temperature; and whose thermal resistance is high and content of pigment is secured. SOLUTION: Particles for display media constitute the display media used for an information display panel, in which the display media are sealed between two substrates 1, 2, at least one substrate being transparent, and, in which the display media to which an electrostatic field is applied, are made to move so as to display information such as an image. One of the particles is produced by crushing resin blocks and classifying them, and the Izod impact strength of the resin constituting the particles for display media (based on ASTM D256) is less than 4 (kgf×cm/cm) and the load-deflection temperature of the resin constituting the particles for display media (base on ASTM D648) exceeds 100°C. The particles for display media having high thermal resistance and secured content of pigment are obtained by using above particles. COPYRIGHT: (C)2008,JPO&INPIT |
