公开(公告)号：US4461495A

公开(公告)日：1984-07-24

申请号：US396372

申请日：1982-07-08

申请人： Yukiya Nakasato ,  Atsuo Kuramoto ,  Sadao Morishita ,  Shigetoshi Hiraishi

发明人： Yukiya Nakasato ,  Atsuo Kuramoto ,  Sadao Morishita ,  Shigetoshi Hiraishi

IPC分类号： B41M5/155 ,  B41M5/16

CPC分类号： B41M5/155

摘要： A condensate free from stickiness and exhibiting an excellent initial color-formability when used as color developer of pressure sensitive copying paper can be obtained by reacting p-hydroxybenzoic acid and one p-alkyl-substituted phenol or a mixture of two or more p-alkyl-substituted phenols with formaldehyde in the presence of an acid catalyst and then directly taking out the condensate into cold water without any procedure such as dehydration, concentration, etc.

摘要翻译： 当用作压敏复印纸的彩色显影剂时，没有粘性并且显示出优异的初始着色成形性的凝析物可以通过使对羟基苯甲酸和一个对烷基取代的苯酚或两个或更多个对 - 烷基 - 取代酚与甲醛在酸催化剂存在下，然后直接取出冷凝水冷却，没有任何程序如脱水，浓缩等。