发明授权
- 专利标题: Anthraquinone compounds
- 专利标题(中): 蒽醌化合物
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申请号: US363223申请日: 1982-03-29
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公开(公告)号: US4391754A公开(公告)日: 1983-07-05
- 发明人: Andrew H. M. Renfrew
- 申请人: Andrew H. M. Renfrew
- 申请人地址: GB2 London
- 专利权人: Imperial Chemical Industries PLC
- 当前专利权人: Imperial Chemical Industries PLC
- 当前专利权人地址: GB2 London
- 主分类号: C09B1/02
- IPC分类号: C09B1/02 ; C09B1/503 ; C09B1/515 ; C09K19/60 ; C07C97/26 ; C07C49/74
摘要:
Compounds of the formula: ##STR1## wherein R.sup.1 is alkyl or aryl;X is H, NH.sub.2 or NHCH.sub.3 ;one of Y and Z is OH and the other is H, NH.sub.2 or NHCH.sub.3 ; andone of R.sup.2 and R.sup.3 is H and the one that is ortho to the OH group is a --CH.sub.2 R.sup.1 radical.The compounds include pleochroic dyes useful in liquid crystal display systems.
公开/授权文献
- USD331154S Chair 公开/授权日:1992-11-24
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