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    • 46. 发明授权
    • Process for preparing oxytitanium phthalocyanine hydrate crystal
    • 氧化钛酞菁水合物晶体的制备方法
    • US5290928A
    • 1994-03-01
    • US928416
    • 1992-08-12
    • Katsumi NukadaMasakazu IijimaAkira ImaiKatsumi Daimon
    • Katsumi NukadaMasakazu IijimaAkira ImaiKatsumi Daimon
    • C09B67/12C09B67/50G03G5/06
    • C09B67/0016C09B67/0026G03G5/0696
    • A process for preparing an oxytitanium phthalocyanine hydrate crystal which, when dried at 100.degree. C. and 0.1 mmHg for 8 hours and then allowed to stand in air at room temperature for 12 hours, has a structural formula of TiOPc.multidot.(H.sub.2 O).sub.n, wherein Pc represents a phthalocyanine nucleus, and n represents a number of from 0.15 to 1, and elemental analysis values of C: 65.0 to 66.3%, H: 2.5 to 3.1%, and N: 18.5 to 19.3% is disclosed, which process comprises the steps of: mechanically grinding a mixture of oxytitanium phthalocyanine and an inorganic salt to convert the crystal form of the oxytitanium phthalocyanine to a crystal form showing a distinct peak in its X-ray diffraction pattern at a Bragg angle (2.theta..+-.0.2.degree. ) of 27.3.degree. and treating the resulting oxytitanium phthalocyanine crystal with a mixed solvent of water and a water-insoluble organic solvent. The oxytitanium phthalocyanine hydrate crystal obtained has doped therein a specific amount of water of crystallization and is stable in a solvent and also stable when used as an electrophotographic photoreceptor.
    • 一种制备氧钛酞菁水合物晶体的方法,其在100℃和0.1mmHg下干燥8小时,然后在室温下放置12小时,其结构式为TiOPcx(H 2 O)n,其中 Pc表示酞菁核,n表示0.15〜1的数,C:65.0〜66.3%,H:2.5〜3.1%,N:18.5〜19.3%的元素分析值, 步骤:机械研磨氧钛酞菁和无机盐的混合物,以将氧钛酞菁的晶体形式转变为在其布拉格角(2θ+/- 0.2°)的X射线衍射图中显示出不同峰的晶体形式 )为27.3℃,用水和水不溶性有机溶剂的混合溶剂处理得到的氧钛酞菁结晶。 获得的氧钛酞菁水合物晶体在其中掺入特定量的结晶水,并且在溶剂中是稳定的,并且当用作电子照相感光体时也是稳定的。
    • 47. 发明授权
    • Electrophotographic toner, electrophotographic developer, toner cartridge, and image forming method
    • 电子照相调色剂,电子照相显影剂,调色剂盒和成像方法
    • US08512926B2
    • 2013-08-20
    • US12046957
    • 2008-03-12
    • Katsumi DaimonYutaka SugizakiSusumu YoshinoHiroshi Nakazawa
    • Katsumi DaimonYutaka SugizakiSusumu YoshinoHiroshi Nakazawa
    • G03G9/00
    • G03G9/08755G03G9/08795G03G9/08797
    • The invention provides an electrophotographic toner having a crystalline polyester resin; a non-crystalline polyester resin; a colorant; and a releasing agent. A resin (i), that is included in a toluene-soluble component of the toner and having a molecular weight of 30,000 to 100,000 as measured by gel permeation chromatography relative to polystyrene standards, has an acid value A. A resin (ii), that is included in a toluene-soluble component of the toner and having a molecular weight of 8,000 to 12,000 as measured by gel permeation chromatography relative to polystyrene standards, has an acid value B. A resin (iii), that is included in a toluene-insoluble component of the toner, has an acid value C. The acid values A, B, and C satisfy the inequation of B>A>C. The invention further provides an electrophotographic developer using the toner, a toner cartridge storing the toner, and an image forming method using the developer.
    • 本发明提供具有结晶聚酯树脂的电子照相调色剂; 非结晶聚酯树脂; 着色剂 和脱模剂。 包含在调色剂的甲苯可溶组分中,通过凝胶渗透色谱法测定的分子量为30,000至100,000的树脂(ⅰ)的酸值为A。树脂(ⅱ), 包括在调色剂的甲苯可溶性组分中并且通过凝胶渗透色谱法相对于聚苯乙烯标准测量的分子量为8,000至12,000,具有酸值B.将包含在甲苯中的树脂(ⅲ) 调色剂的不溶成分,具有酸值C.酸值A,B和C满足B> A> C的不等式。 本发明还提供使用调色剂的电子照相显影剂,存储调色剂的调色剂盒和使用显影剂的图像形成方法。