Title:
LINEAR POLYESTER RESIN FOR TONER, TONER, AND METHOD FOR MANUFACTURING LINEAR POLYESTER RESIN FOR TONER
Document Type and Number:
Japanese Patent JP3828872
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a toner which has well balanced physical properties and particularly has excellent non-offsetting property and glossiness, and to provide a linear polyester resin for the toner and a method for manufacturing the same.
SOLUTION: The linear polyester resin for the toner contains 3-10C aliphatic diol at 10 to 60 mol parts per 100 mol parts of total carboxylic acid component, has a glass transition temperature ranging from 50 to 75°C, a softening temperature ranging from 150 to 220°C, and an acid value ≤10 mgKOH/g. The toner contains the resin as a binder. The method for manufacturing the linear polyester resin for the toner comprises: bringing the dicarboxylic acid component and diol component into esterification reaction at a temperature ranging from 250 to 280°C under pressure ranging from 200 to 500 kPa; and subjecting the components to condensation polymerization at a temperature ranging from 250 to 350°C and higher by ≥5°C than the esterification temperature under pressure below 1 kPa.
Inventors:
Akira Kondo
Yoko Harada
Sugiura
Koichi Ito
Yoko Harada
Sugiura
Koichi Ito
Application Number:
JP2003068375A
Publication Date:
October 04, 2006
Filing Date:
March 13, 2003
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
G03G9/087; (IPC1-7): G03G9/087
Domestic Patent References:
| JP11305485A | ||||
| JP11194542A | ||||
| JP10010777A | ||||
| JP2000066447A |
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