发明名称 |
Pigment, method for producing pigment, pigment dispersion, and electrostatic image developing powder toner |
摘要 |
A pigment having weak dispersion force to be readily dispersed in a medium to be colored from which an excellent yellow image having superior transparency can be produced. The pigment includes a compound having the same chemical formula as C.I. Pigment Yellow 180. The BET specific surface area based on the nitrogen absorption process of the pigment is 20-100 m<2>/g, and the ratio of the absolute strength of X-ray diffraction at Bragg angle 2theta=17.5°±0.2° to the absolute strength of X-ray diffraction at Bragg angle 2theta=18.2°±0.2° of the pigment in a powder X-ray diffraction diagram using a CuKalpha characteristic X-ray is less than 1.8/1.0. The present invention also provides a dispersion including the pigment and a thermoplastic resin having excellent transparency and color strength.
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申请公布号 |
US6784231(B2) |
申请公布日期 |
2004.08.31 |
申请号 |
US20020100063 |
申请日期 |
2002.03.19 |
申请人 |
DAINIPPON INK AND CHEMICALS, INC. |
发明人 |
SHIMADA KATSUNORI;SUNOUCHI JUNKO |
分类号 |
C09B67/00;C09B67/10;G03G9/09;(IPC1-7):C09B35/22;C09B35/035;D06P1/18;D06P1/44 |
主分类号 |
C09B67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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