发明名称 |
Toner, developer, and image forming apparatus |
摘要 |
To provide a toner including at least a binder resin and a colorant, wherein the binder resin has two glass transition temperatures Tg1 and Tg2 in a differential scanning calorimetry at a heating speed of 5° C./min, the glass transition temperature Tg1 is−20° C. to 20° C., and the glass transition temperature Tg2 is 35° C. to 65° C., wherein the binder resin comprises a polyester skeleton and a ring-containing skeleton molecule at ends thereof, and wherein the binder resin is obtained by block copolymerization of: a polyester skeleton A which includes a structural unit obtained by dehydration condensation of a hydroxycarboxylic acid in a repeating structure; and a skeleton B which does not include a structural unit obtained by dehydration condensation of a hydroxycarboxylic acid in a repeating structure. |
申请公布号 |
US8735040(B2) |
申请公布日期 |
2014.05.27 |
申请号 |
US201213728060 |
申请日期 |
2012.12.27 |
申请人 |
AMEMORI SUZUKA;YAMADA MASAHIDE;MORIYA YOSHIHIRO;NEMOTO TAICHI;NAKAJIMA YUKIKO;YAMAUCHI YOSHITAKA;YAMASHITA DAIKI;MAKABE KEIJI;SABU AKIYOSHI;RICOH COMPANY, LTD. |
发明人 |
AMEMORI SUZUKA;YAMADA MASAHIDE;MORIYA YOSHIHIRO;NEMOTO TAICHI;NAKAJIMA YUKIKO;YAMAUCHI YOSHITAKA;YAMASHITA DAIKI;MAKABE KEIJI;SABU AKIYOSHI |
分类号 |
G03G9/087 |
主分类号 |
G03G9/087 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|