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    • 2. 发明授权
    • Toner for developing electrostatic images and image forming method
    • 用于显影静电图像和成像方法的调色剂
    • US5948584A
    • 1999-09-07
    • US81085
    • 1998-05-19
    • Akira HashimotoTsutomu KukimotoSatoshi YoshidaManabu OhnoYasukazu AyakiSatoshi Handa
    • Akira HashimotoTsutomu KukimotoSatoshi YoshidaManabu OhnoYasukazu AyakiSatoshi Handa
    • G03G9/08G03G9/087G03G9/097G03G13/22
    • G03G9/08795G03G9/0825G03G9/0827G03G9/087G03G9/08755
    • A toner for developing electrostatic images is formed from toner particles containing at least a binder resin, a colorant, and a wax. The binder resin comprises a vinyl polymer component and a polyester component. The binder resin contains 40-99 wt. % of a component A, 0-20 wt. % of a component B, and 0-60 wt. % of a component C, the components B and C providing totally 1-60 wt. % of the binder resin. The component A comprises low- and medium-molecular weight components having molecular weights of below 10.sup.6, and the component B comprises high-molecular weight components having molecular weights of at least 106, respectively, based on a chromatogram obtained by gel permeation chromatography of a tetrahydrofuran (THF)-soluble component of the binder resin, and the component C is a THF-insoluble component of the binder resin. The GPC chromatogram of the THF-soluble component of the binder resin exhibits a main peak in a molecular weight region of 3.times.10.sup.3 -5.times.10.sup.4. The toner particles have a shape factor SF-1 of 100-160 and a shape factor SF-2 of 100-140.
    • 用于显影静电图像的调色剂由至少含有粘合剂树脂,着色剂和蜡的调色剂颗粒形成。 粘合剂树脂包含乙烯基聚合物组分和聚酯组分。 粘合剂树脂含有40-99wt。 组分A的%,0-20重量% 组分B的%,和0-60重量% 组分C的%,组分B和C提供总共1-60重量% %的粘合剂树脂。 组分A包含分子量低于106的低分子量组分和中等分子量组分,组分B包含分子量至少为106的高分子量组分,基于通过凝胶渗透色谱法获得的色谱图 四氢呋喃(THF) - 可溶成分的粘合剂树脂,组分C是粘合剂树脂的THF不溶性组分。 粘结剂树脂的THF可溶组分的GPC色谱图在3×103-5×104的分子量区域中显示出主峰。 调色剂颗粒的形状因子SF-1为100-160,形状因子SF-2为100-140。
    • 9. 发明授权
    • Dry toner, dry toner production process, and image forming method
    • 干粉,干粉生产工艺和成像方法
    • US06635398B1
    • 2003-10-21
    • US09695079
    • 2000-10-25
    • Keiji KomotoTsutomu KukimotoTatsuhiko ChibaAkira Hashimoto
    • Keiji KomotoTsutomu KukimotoTatsuhiko ChibaAkira Hashimoto
    • G03G9087
    • G03G9/0821G03G9/0827G03G9/08737
    • A dry toner has toner particles containing at least a binder resin, a colorant and a wax component and an external additive. The binder resin contains a component derived from a monomer selected from butadiene, isoprene and chloroprene. The toner has a main Tg from 40° C. to 70° C. When specific surface area measured by the BET method in an environment of 23° C. atmospheric temperature and 65% relative humidity is represented by A (m2/g) and specific surface area measured by the BET method in an environment of 50° C. atmospheric temperature and 3% relative humidity is represented by B (m2/g), the toner satisfies the following relationship: 0.8≦A≦4.0, 0.80≦(B/A)≦1.05. The toner has a circle-corresponding number-average particle diameter D1 from 2 to 10 &mgr;m, an average circularity from 0.950 to 0.995 and a circularity standard deviation less than 0.040. The toner has a main-peak molecular weight from 2,000 to 100,000 and contains a THF-insoluble matter from 5 to 60% by weight.
    • 干燥调色剂具有至少含有粘合剂树脂,着色剂和蜡组分的调色剂颗粒和外部添加剂。 粘合剂树脂含有源自选自丁二烯,异戊二烯和氯丁二烯的单体的成分。 调色剂的主要Tg为40℃至70℃。当在23℃环境温度和65%相对湿度的环境中通过BET法测得的比表面积由A(m 2 / g)和通过BET法在50℃环境温度和3%相对湿度的环境中测量的比表面积由B(m 2 / g)表示,调色剂满足以下关系:0.8 <= A <= 4.0,0.80 <=(B / A)<= 1.05。 调色剂具有2至10μm的圆对应的数均粒径D1,0.950至0.995的平均圆形度和小于0.040的圆形度标准偏差。 调色剂的主峰分子量为2,000〜100,000,含有5〜60重量%的THF不溶物。