首页>
外国专利>
Pressure-sensitive record sheets employing amido and sulfonamido-substituted fluorans
Pressure-sensitive record sheets employing amido and sulfonamido-substituted fluorans
展开▼
机译:使用酰胺基和磺酰胺基取代的荧烷的压敏记录纸
展开▼
页面导航
摘要
著录项
相似文献
摘要
A pressure-sensitive record sheet employing a novel chromogenic material of normally colorless form is disclosed, the chromogenic material having a structural formula:
展开▼