发明名称 |
Preparation of conductive toners using fluidized bed processing equipment |
摘要 |
A method for making conductive toner particles includes (A) heat treating in fluidized bed processing equipment a mixture of non-conductive toner particles containing a thermoplastic resin and a colorant, and an effective amount of conductive powder blended with and coated on surfaces of the non-conductive toner particles, wherein the heat treatment is carried out at a temperature at or above the glass transition temperature of the resin for a period of time at least sufficient to fuse the conductive powder onto the surfaces of the non-conductive toner particles, and then (B) cooling the heated conductive toner particles to a temperature below the glass transition temperature of the resin. The final toner particles have a conductivity of at least about 10-8 ohm-1-cm-1 and preferably from about 10-4 to about 10-8 ohm-1-cm-1.
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申请公布号 |
US5350659(A) |
申请公布日期 |
1994.09.27 |
申请号 |
US19930040965 |
申请日期 |
1993.03.31 |
申请人 |
XEROX CORPORATION |
发明人 |
LEE, FRANK P.;KAO, SHEAU V.;ALLISON, GERALD R.;MAHABADI, HADI K.;LIEBERMANN, GEROGE;VIJAYAKUMAR, GOPALAN;DOWNING, ROBERT A. |
分类号 |
G03G9/087;G03G9/08;G03G9/09;(IPC1-7):G03G5/00 |
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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