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    • 7. 发明授权
    • Toner binder for electrophotography and toner for electrophotography
    • 电子照相用调色剂粘合剂和电子照相用调色剂
    • US06497983B2
    • 2002-12-24
    • US09974893
    • 2001-10-12
    • Tsuyoshi IwaKazuya SakataShoji KawasakiMasaaki Shin
    • Tsuyoshi IwaKazuya SakataShoji KawasakiMasaaki Shin
    • G03G9087
    • G03G9/08753G03G9/0821G03G9/08704G03G9/08711G03G9/08722G03G9/08791G03G9/08793G03G9/08795G03G9/08797
    • The present invention is aimed at providing a toner binder for electrophotography that is excellent in the fixing property, offset resistance, blocking property, grindability, durable developing property and the like to correspond to the high-speed movement of a copier. The purpose of the present invention could be achieved by a toner binder having the following features for electrophotography. That is, when the viscoelasticity of the toner binder is measured in the temperature range of 50 to 200 ° C. and at a heating rate of 2° C./min., the viscoelasticity curve in the temperature range of 100 to 200° C. showing the relationship between the storage modulus and temperature, in which curve the axis of ordinate is the logarithm (Pa) of storage modulus G′ and the axis of abscissa is temperature (° C.), has a concave in the temperature range of 140 to 180° C. and has a minimum value of storage modulus G′ at the bottom of the range, and this G′ 0 and storage modulus G′ 200 at 200° C. are G′ 0
    • 本发明的目的在于提供一种电子照相用调色剂粘合剂,其对应于复印机的高速移动而具有优异的定影性能,抗偏移性,粘合性,可磨性,耐久显影性等。 本发明可以通过具有以下电子照相特征的调色剂粘合剂来实现。 也就是说,当在50〜200℃的温度范围和2℃/分钟的加热速度下测定调色剂粘合剂的粘弹性时,在100〜200℃的温度范围内的粘弹性曲线 示出了储能模量和温度之间的关系,其中纵坐标轴为储能模量G'的对数(Pa)和横坐标轴为温度(℃)的曲线,其温度范围为 140〜180℃,并且在该范围的底部具有最小的储能模量G',在200℃下的G'0和储能模量G'200为G'0