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    • 10. 发明授权
    • Toner for electrostatic image development
    • 调色剂用于静电图像显影
    • US5853939A
    • 1998-12-29
    • US684479
    • 1996-07-19
    • Akihiko YanagiboriHitoshi OnoNoriaki Takahashi
    • Akihiko YanagiboriHitoshi OnoNoriaki Takahashi
    • G03G9/087G03G9/097G03G9/00
    • G03G9/08708G03G9/08711G03G9/08782G03G9/09733G03G9/09741G03G9/09758Y10S430/105
    • The present invention relates to a toner for electrostatic image development comprising: a lubricant having a DSC determined endothermic peak at 50.degree.-130.degree. C., with the half value width of said endothermic peak being not more than 15.degree. C., and represented by the formula (I): ##STR1## wherein R.sup.1 represents an alkyl or alkoxyl group having 10 or more carbon atoms, and R.sup.2 represents an alkyl group having 10 or more carbon atoms or a group represented by --X--COOR.sup.3 wherein X represents an alkylene group and R.sup.3 represents an alkyl group having 10 or more carbon atoms; a binder resin comprising a styrene-based resin in which tetrahydrofuran soluble matter has the weight-average molecular weight of not less than 50,000, and has one or more peaks of molecular weight in the range of not more than 5.times.10.sup.4 and the range of 1.times.10.sup.5 to 1.times.10.sup.7 respectively, on the gel permeation chromatogram; and a coloring agent.
    • 本发明涉及一种用于静电图像显影的调色剂,其包括:在50-130℃下具有DSC测定的吸热峰的润滑剂,所述吸热峰的半值宽度不超过15℃,并且表示为 式(I):其中R 1表示碳原子数为10以上的烷基或烷氧基,R 2表示碳原子数为10以上的烷基或由-X-COOR 3表示的基团,式 X表示亚烷基,R 3表示碳原子数为10以上的烷基。 包含其中四氢呋喃可溶物质的重均分子量不小于50,000的苯乙烯基树脂的粘合剂树脂,并且具有一个或多个分子量在不大于5×10 4的范围内且峰值范围为1×10 5〜 1x107,凝胶渗透色谱图; 和着色剂。