申请人:Mitsui Toatsu Chemicals, Incorporated
公开号:US05391806A1
公开(公告)日:1995-02-21
Heat-sensitive recording materials contain an electron-donating chromogenic compound and an electron-attracting compound. The recording materials also contain at least one compound represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.3 mean a hydrogen atom or an alkyl, aralkyl or aryl group, R.sub.2 and R.sub.4 denote an alkyl, alkenyl, aralkyl or aryl group, X.sub.1, X.sub.2, Y.sub.1 and Y.sub.2 stand for an oxygen or a sulfur atom, and --Z.sub.1 -- and --Z.sub.2 -- are a specific aromatic group. Also provided are phenol compounds represented by the following formula: ##STR2## wherein R.sub.1, R.sub.2, X.sub.1 and Y.sub.1 have the same meanings as defined above; R.sub.5 and R.sub.6 are a hydrogen or halogen atom or an alkyl, alkoxy, aralkyl, aryl or hydroxyl group; p and q stand for an integer of 1-4; R.sub.5 and R.sub.6 may be either the same or different when p and q represent an integer of 2 or greater; and --Z.sub.3 -- means a specific divalent group.
感应热记录材料包含一个给电子的显色化合物和一个吸电子的化合物。记录材料还包含至少一种由以下公式表示的化合物:##STR1## 其中R.sub.1和R.sub.3表示氢原子或烷基、芳基烷基或芳基,R.sub.2和R.sub.4表示烷基、烯基、芳基烷基或芳基,X.sub.1、X.sub.2、Y.sub.1和Y.sub.2代表氧或硫原子,--Z.sub.1--和--Z.sub.2--是特定的芳香族基团。还提供了由以下公式表示的酚化合物:##STR2## 其中R.sub.1、R.sub.2、X.sub.1和Y.sub.1的含义与上述定义相同;R.sub.5和R.sub.6是氢或卤原子或烷基、烷氧基、芳基烷基、芳基或羟基;p和q表示1-4的整数;当p和q表示大于2的整数时,R.sub.5和R.sub.6可以相同也可以不同;--Z.sub.3--表示特定的二价基团。