| 发明名称 | Colorant, microcapsule pigment prepared by using the same and ink composition for writing instrument | ||
| 摘要 | Provided are a colorant represented by the following Formula (I) which is excellent in a color intensity and a lightfastness, a microcapsule pigment including the colorant, a developer and a chromic temperature controller and an ink composition for writing instruments including the microcapsule pigment:; wherein 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. | ||
| 申请公布号 | US9315672(B2) | 申请公布日期 | 2016.04.19 |
| 申请号 | US201214350842 | 申请日期 | 2012.10.05 |
| 申请人 | MITSUBISHI PENCIL COMPANY, LIMITED | 发明人 | Ichikawa Shuji |
| 分类号 | C09D11/17;C09B11/24;C09B67/02;C09K9/02;C09B67/08 | 主分类号 | C09D11/17 |
| 代理机构 | Buchanan, Ingersoll & Rooney PC | 代理人 | Buchanan, Ingersoll & Rooney PC |
| 主权项 | 1. A blue colorant comprising a leuco dye represented by the following Formula (I): wherein 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. | ||
| 地址 | Tokyo JP | ||