公开(公告)号：US4507376A

公开(公告)日：1985-03-26

申请号：US514020

申请日：1983-07-15

申请人： Muneharu Makita ,  Osamu Oseto ,  Toshiaki Munemitsu

发明人： Muneharu Makita ,  Osamu Oseto ,  Toshiaki Munemitsu

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/08793 ,  G03G9/08775 ,  Y10S430/105

摘要： An electrophotographic toner composition having excellent blocking resistance and offset resistance which contains as a resin binder a polymeric rosin compound having a softening point of 50.degree. to 190.degree. C., a glass transition temperature of 10.degree. to 170.degree. C. and a molecular weight of 2,000 to 40,000 prepared by the reaction of (a) a glycidyl ester of rosin, (b) a dicarboxylic acid or its anhydride, and (c) a crosslinking agent selected from the group consisting of a polyfunctional epoxy compound, a polycarboxylic acid having a valency of not less than 3 or its anhydride, and a polyhydric alcohol having a valency of not less than 3. A dihydric alcohol may be used in the above reaction in order to improve the low temperature fixing property of the toner.

摘要翻译： 一种电子照相调色剂组合物，其具有优异的抗粘连性和抗粘着性，其中含有作为树脂粘合剂的软化点为50至190℃，玻璃化转变温度为10至170℃的聚合松香化合物和分子量 通过（a）松香的缩水甘油酯，（b）二羧酸或其酸酐的反应制备的2,000至40,000，和（c）选自多官能环氧化合物，多官能环氧化合物，具有 不低于3的化合价或其酸酐，以及价数不低于3的多元醇。为了提高调色剂的低温定影性，可以在上述反应中使用二元醇。