申请人:Asahi Kasei Chemicals Corporation
公开号:EP1637337A1
公开(公告)日:2006-03-22
A developer which contains a triphenolic compound (B) being a triphenolic compound (A) of the general formula (1) satisfying the requirements: (a) an OH group is present at one or more of 4- and 4'-positions of the left and right aromatic rings and (b) at least one of the substituents adjacent to at least one OH group on the left or right aromatic rings is hydrogen and which exhibits high sensitivity and image stability of images and less fog in non-image areas; and color forming materials and thermal recording materials made by using the same.
一种含有三酚类化合物(B)的显影剂,该三酚类化合物(B)是通式(1)的三酚类化合物(A),满足以下要求:(a) 在左芳香环和右芳香环的 4- 位和 4'- 位中的一个或多个位置上有一个羟基;(b) 与左芳香环或右芳香环上的至少一个羟基相邻的取代基中至少有一个是氢,并且该显影剂具有高灵敏度和图像稳定性,非图像区域的雾气较少;以及使用该显影剂制成的色彩形成材料和热敏记录材料。