| 发明名称 |
Phenothiazine leucodyes for electrochromic recording |
| 摘要 |
An electrochromic recording substrate comprising bromide ions and a leucodye having the structure <IMAGE> wherein R is lower alkyl, lower alkoxy, lower thioalkyl, lower dialkylamino, or diarylamino.
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| 申请公布号 |
US4439280(A) |
申请公布日期 |
1984.03.27 |
| 申请号 |
US19820426478 |
申请日期 |
1982.09.29 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GENDLER, PAUL L.;TWIEG, ROBERT J. |
| 分类号 |
C08K5/00;B41M5/20;C08K5/35;C08K5/357;C09B21/00;C09K9/00;G02F1/15;G02F1/17;(IPC1-7):B21H1/20;B41C3/08 |
主分类号 |
C08K5/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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