发明名称 DYE, MICROCAPSULE PIGMENT USING SAME, AND INK COMPOSITION FOR WRITING MATERIALS
摘要 <p>Provided are a colorant represented by the following Formula (I) which is excellent in a color intensity and a lightfastness, a microcapsule pigment prepared by using the above colorant, and an ink composition for writing instruments: [in Formula (I) described above, X and Y represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a halogen atom; and X and Y may be identical or different from each other, provided that a case in which both of X and Y are a hydrogen atom is excluded]. The above microcapsule pigment is characterized by comprising at least the colorant comprising the leuco dye represented by Formula (I) described above, a developer and a chromic temperature controller, and the ink composition for writing instruments is characterized by comprising the above microcapsule pigment.</p>
申请公布号 EP2772517(A4) 申请公布日期 2015.07.22
申请号 EP20120844552 申请日期 2012.10.05
申请人 MITSUBISHI PENCIL COMPANY, LIMITED 发明人 ICHIKAWA, SHUJI
分类号 C09B11/28;C09B11/24;C09B67/02;C09B67/08;C09B67/20;C09D11/16;C09D11/17;C09K9/02 主分类号 C09B11/28
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