发明授权
US06458194B1 Azo dye compound having 1,2,4-triazole as the azo component
失效
具有1,2,4-三唑作为偶氮成分的偶氮染料化合物
- 专利标题： Azo dye compound having 1,2,4-triazole as the azo component
- 专利标题（中）： 具有1,2,4-三唑作为偶氮成分的偶氮染料化合物
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申请号： US09676226申请日： 2000-09-29
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公开(公告)号： US06458194B1公开(公告)日： 2002-10-01
- 发明人: Hisashi Mikoshiba , Takayoshi Kamio
- 申请人： Hisashi Mikoshiba , Takayoshi Kamio
- 优先权： JP11-275697 19990929
- 主分类号： C09D1100
- IPC分类号： C09D1100
摘要：
A dye compound excellent in transfer property and color fastness against light, a yellow dye excellent in light absorption property, a yellow dye compound for thermal transfer dye donating material excellent in solubility and a dye compound which can be synthesized with ease from readily-available source materials are provided. A dye compound of the present invention is expressed by the general formula (1): or a salt thereof, wherein R1, R2, R3 and R4 independently represent a hydrogen atom or a substituent.