| 发明名称 |
PHTHALIDE COMPOUND AND RECORDING MATERIAL USING THE SAME |
| 摘要 |
NEW MATERIAL:A compd. of formula I (wherein R is 1-4C alkyl). USE:A color-developing agent used for a recording material (pressure-sensitive copying paper or thermal recording paper) and for a temp. indicating material. PREPARATION:A compd. of formula II is made to react with a compd. of formula III by heating them in acetic anhydride. |
| 申请公布号 |
JPH03200876(A) |
申请公布日期 |
1991.09.02 |
| 申请号 |
JP19890302211 |
申请日期 |
1989.11.22 |
| 申请人 |
HODOGAYA CHEM CO LTD |
发明人 |
KANEKO KAZUO;NAKAMURA AKIRA;YAMAGUCHI MASAHIKO;YOSHIKAWA KATSUMASA |
| 分类号 |
B41M5/327;B41M5/145;B41M5/30;C09B57/00 |
主分类号 |
B41M5/327 |
| 代理机构 |
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