发明名称 |
THERMAL SENSITIVE RECORDING MEDIUM |
摘要 |
A thermal sensitive recording medium which further contains poly urea compou nd in the thermal color developing layer containing dye precursor and color developer, which displays an excellent image preservative stability. Said poly urea compound contains units of a structure represented by general formula (1), and further contains a repeating unit represented by general formulae (2) ~ (7). <IMG> In these formulae A1 ~ A7 are a divalent group, R1 ~ R5 are an alkyl group, an alkoxy group or an electron accepting group, o, p, and q are an integer from 0 to 4 , r is an integer from 2 to 12 and s and t are an integer from 0 to 8.
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申请公布号 |
CA2231705(C) |
申请公布日期 |
2005.11.15 |
申请号 |
CA19982231705 |
申请日期 |
1998.03.05 |
申请人 |
NIPPON PAPER INDUSTRIES CO., LTD. |
发明人 |
SEKI, JUNKO;YOSHIOKA, HIDETOSHI;NAKANO, TOMOYUKI;OHASHI, REIJI;YANAI, KOICHI |
分类号 |
B41M5/333;B41M5/337;(IPC1-7):B41M5/30 |
主分类号 |
B41M5/333 |
代理机构 |
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地址 |
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