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1. 发明授权

US07018786B2 Toning agents for use in thermographic recording materials 失效
标题翻译：用于热敏记录材料的调色剂
公开(公告)号：US07018786B2
公开(公告)日：2006-03-28
申请号：US10737495
申请日：2003-12-16
申请人： Ingrid Geuens , Johan Loccufier , Vera Drieghe
发明人： Ingrid Geuens , Johan Loccufier , Vera Drieghe
IPC分类号： C03C1/35 , C03C1/494 , C03C1/498 , C03C5/29
CPC分类号： G03C1/4989 , G03C1/49845 , Y10S430/165 , Y10S430/166
摘要： A black and white monosheet thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one toning agent, wherein the at least one toning agent is represented by formula (I): wherein R1 is a hydrogen atom or an alkyl, an alkenyl, an alkynyl, a cycloalkyl, an alkaryl, an aryl, a heterocyclic or a heteroaryl group all of which may be optionally substituted; with the proviso that R1 may not be a hydrogen atom if both R2 and R3 are both hydrogen atoms; R2 and R3 are independently a hydrogen or a halogen atom or an amino, amide, ester, carboxy, carbonate, alkyl, alkenyl, alkynyl, cycloalkyl, alkaryl, aryl, heterocyclic or heteroaryl group all of which may be optionally substituted; R2 and R3 may together represent the atoms necessary to complete a heteroaromatic ring with no more than one nitrogen atom, an alicyclic or a heterocyclic group which all may be optionally substituted; and X is a carbonyl group, or is —N—R4, where R4 is an alkyl group.
摘要翻译：一种包含支持体和热敏元件的黑色和白色单片热成像记录材料，所述热敏元件含有基本上不光敏的有机银盐，与其热加工关系的有机还原剂，粘合剂和至少一种调色剂，其中所述至少一种调色剂由式（I）表示：其中R 1是氢原子或烷基，烯基，炔基，环烷基，烷芳基，芳基，杂环或全部可以任选被取代的杂芳基; 条件是如果R 2和R 3两个都是氢原子，R 1可以不是氢原子; R 2和R 3独立地是氢或卤素原子或氨基，酰胺，酯，羧基，碳酸酯，烷基，烯基，炔基，环烷基，烷芳基，芳基，杂环或杂芳基，其全部可以任选被取代; R 2和R 3可以一起表示完成具有不超过一个氮原子的杂芳环所必需的原子，所有可以任选取代的脂环族或杂环基 ; 并且X是羰基，或者是-N-R 4，其中R 4是烷基。

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