申请人:Hayoz Pascal
公开号:US20120229884A1
公开(公告)日:2012-09-13
Disclosed is a composition comprising a charged particle of volume 5 nm
3
to 50 million nm
3
preferably having an inorganic core of SiO
2
, AI
2
O
3
, and/or TiO
2
, or a core essentially consisting of an organic pigment and/or pigment derivative, and a counter ion which is separable from the particle and is not covalently linked to the particle, said counter ion comprising a silicon atom which is directly bound to a carbon atom. Preferably, said charged particle comprises a dye attached to said inorganic core and said counter ion comprises a (poly)siloxane moiety linked via suitable bridge members to a quaternary, positively charged, nitrogen or phosphorus atom, or to a moiety carrying an anionic functional group. Said composition may be used e.g. in the form of a homogenous dispersion in an electrophoretic display.
本发明涉及一种组合物,包括一个带电粒子,其体积为5nm3至50百万nm3,优选具有SiO2、AI2O3和/或TiO2的无机核心,或者基本上由有机颜料和/或颜料衍生物组成的核心,以及一种可与粒子分离且不与粒子共价连接的对离子,所述对离子包括直接与碳原子结合的硅原子。优选地,所述带电粒子包括连接到所述无机核心的染料,所述对离子包括通过适当的桥连成员连接到四价、带正电的氮或磷原子,或连接到带有负离性官能团的基团上的(聚)硅氧烷基团。所述组合物可以以均匀分散的形式用于电泳显示。