发明名称 Thermosensitive recording material and color developer compound therefor
摘要 A thermosensitive recording material has a support and a thermosensitive coloring layer formed thereon containing a leuco dye and a color developer capable of inducing color formation in the leuco dye upon application of heat thereto, with the color developer including at least one compound (A) having in a molecule thereof at least two aromatic ring moieties with specific structures, selected from the group consisting of an aromatic ring moiety having at least one carboxyl group and electron-attracting functional group, an aromatic ring moiety having at least one carboxyl group and electron-donating functional group, and an aromatic ring moiety having at least one carboxyl group, free of the electron-attracting and electron-donating functional groups. An aromatic carboxylic acid compound serving as the above-mentioned compound (A) and the producing method thereof are also disclosed.
申请公布号 US6180560(B1) 申请公布日期 2001.01.30
申请号 US19980134689 申请日期 1998.08.14
申请人 RICOH COMPANY, LTD. 发明人 HAYAKAWA KUNIO;MORITA MITSUNOBU
分类号 B41M5/30;B41M5/333;B41M5/40;B41M5/44;C07C69/017;C07C69/76;C07C69/88;C07C69/92;C07C205/57;C07C233/75;C07C233/80;C07C235/56;C07C309/73;C07C317/22;C07C317/40;(IPC1-7):B41M5/30 主分类号 B41M5/30
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