公开(公告)号：EP2214053A1

公开(公告)日：2010-08-04

申请号：EP09805012.3

申请日：2009-08-05

申请人： Bridgestone Corporation

发明人： OOSAKI, Toshiyuki ,  ISHIGOUOKA, Hideo ,  KAGA, Norihiko ,  HANZAWA, Kentaro

IPC分类号： G02F1/167

CPC分类号： G02F1/167 ,  G02F2001/1678

摘要： A display media particle used for an information display panel having display media constituted of particles sealed between two substrates, at least one of which is transparent, for displaying information by moving the display media, is formed of a mother particle 32 made from materials including a base resin having child particles 33 added to a surface thereof. The base resin is a thermoplastic resin having a viscosity of no more than 1000Pa · s at 260°C and a shear rate at 122s -1 , and a heatproof temperature at no less than 430°C. Since optimal conditions of the viscosity and the heatproof temperature are specified, it is possible to round the resin effectively by a heat treatment for spheronization as a post-treatment after manufacturing.

摘要翻译： 用于具有由密封在两个基板之间的颗粒构成的显示介质的信息显示面板的显示介质颗粒，其中至少一个基板是透明的，以通过移动显示介质来显示信息，该显示介质颗粒由母颗粒32形成， 在其表面添加了子粒子33的基础树脂。 基础树脂是在260℃和122s -1的剪切速率下具有不超过1000Pa·s的粘度，并且耐热温度不低于430℃的热塑性树脂。 由于规定了粘度和耐热温度的最佳条件，所以作为制造后的后处理，可以通过滚圆处理的热处理有效地使树脂圆形化。