发明名称 |
Toner for developing electrostatic image |
摘要 |
<p>A toner for developing an electrostatic image is constituted by a resin composition and a colorant. The resin composition includes a high-softening point polyester resin (I) having a softening point of 120 - 180 <o>C, a low-softening point polyester resin (II) having a softening point of 80 - 120 <o>C, and a long-chain alkyl compound selected from the group consisting of a long-chain alkyl alcohol principally comprising long-chain alkyl alcohol components having long-chain alkyl groups of 23 to 252 carbon atoms and a long-chain alkyl carboxylic acid principally comprising long-chain alkyl carboxylic acid components having long-chain alkyl groups of 22 to 251 carbon atoms. The resin composition preferably includes a tetrahydrofuran (THF)-soluble content providing a gel permeation chromatogram showing a weight-average molecular weight (Mw) of at least 10<5>, a ratio of Mw to number-average molecular weight (Mn) of at least 35 and an areal percentage of at least 5 % of a region of molecular weight of at least 2x10<5>.</p> |
申请公布号 |
EP0716351(A2) |
申请公布日期 |
1996.06.12 |
申请号 |
EP19950308507 |
申请日期 |
1995.11.27 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
DOUJO, TADASHI;KOHTAKI, TAKAAKI;UNNO, MAKOTO;MIKURIYA, YUSHI |
分类号 |
G03G9/087;G03G9/097;(IPC1-7):G03G9/087 |
主分类号 |
G03G9/087 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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