Title:
表示媒体用粒子およびこれを用いた情報表示用パネル
Document Type and Number:
Japanese Patent JP4574747
Kind Code:
B2
Abstract:
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.
Inventors:
Toshiyuki Osaki
Hideo Ishigooka
Norihiko Kaga
Kentaro Hanzawa
Hideo Ishigooka
Norihiko Kaga
Kentaro Hanzawa
Application Number:
JP2010519292A
Publication Date:
November 04, 2010
Filing Date:
August 05, 2009
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
G02F1/167
Domestic Patent References:
| JP2008083226A | 2008-04-10 | |||
| JP2006106596A | 2006-04-20 | |||
| JP2006064815A | 2006-03-09 |
Attorney, Agent or Firm:
Kenji Sugimura
Kiyoshi Kuruma
Tatsuya Sawada
Kazuyuki Tomita
Nobuyuki Okajima
Kiyoshi Kuruma
Tatsuya Sawada
Kazuyuki Tomita
Nobuyuki Okajima