发明名称 |
Fine organic silicone particle for latent electrostatic image developing toners, external additive for toners, toner for developing latent electrostatic image, and two-component developer |
摘要 |
The present invention provides an organic silicone fine particle for latent electrostatic image developing toners, wherein the organic silicone fine particle has a volume average particle diameter of 0.05 μm to 6.0 μm which is obtained by measurement based on Coulter principle, and has a hemispherical polysiloxane cross-linked structure. By mixing an appropriate amount of an organic silicone resin particle formed in a deformed shape (a hemispherical shape) in a toner or developer, the present invention prevents movement of the organic silicone resin particle from surface functional sites, the movement caused by a phenomenon such as detachment thereof from a toner surface or rolling movement on the toner surface, by the effect of its shape, and makes it possible to effectively achieve the expected function. |
申请公布号 |
US8105743(B2) |
申请公布日期 |
2012.01.31 |
申请号 |
US20080046728 |
申请日期 |
2008.03.12 |
申请人 |
ISHII MASAYUKI;INOUE RYOTA;MORIYA YOSHIHIRO;SAKASHITA SHINGO;RICOH COMPANY, LTD. |
发明人 |
ISHII MASAYUKI;INOUE RYOTA;MORIYA YOSHIHIRO;SAKASHITA SHINGO |
分类号 |
G03G13/08 |
主分类号 |
G03G13/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|