发明名称 NEW ESTER COMPOUND WITH UREA BOND
摘要 PROBLEM TO BE SOLVED: To obtain the subject new compound useful as a material for a colorization/decolorization controlling agent for a reversible thermo-sensitive recording medium, which, when used for the above medium, quickly erases the color and is excellent in preservation stability. SOLUTION: This compound is shown by the formula [(q) is 1 to 11; (r) is 11 to 17; and R is a <=4C aliphatic hydrocarbon], e.g. methyl N'-n- octadecylureidoacetate. The compound shown by the formula is obtained by, e.g. esterification of amino acid and adding the product to an alkyl isocyanate, preferably in an organic solvent, e.g. toluene. A reversible thermo-sensitive recording medium is obtained by including (A) the above compound serving as a colorization/decolorization controlling agent, (B) a developer, e.g. dodecylphosphonic acid, and (C) a colorant e.g. 2-anilino-3-methyl-6- dimethylaminofluoran. It is preferable to include the component B at 0.1 to 20 mols per mol of the component C and the component A at 0.1 to 300 wt.% based on the component B.
申请公布号 JPH11349552(A) 申请公布日期 1999.12.21
申请号 JP19980175433 申请日期 1998.06.08
申请人 RICOH CO LTD 发明人 SHIMADA MASARU;TORII MASASHI;MATSUI HIROAKI;TSUTSUI KYOJI;FURUYA HIROMI;TATEWAKI TADAFUMI;KAWAMURA FUMIO;KUTAMI ATSUSHI
分类号 B41M5/337;B41M5/26;B41M5/30;B41M5/333;C07C275/16 主分类号 B41M5/337
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