申请人:Eastman Kodak Company
公开号:US05405727A1
公开(公告)日:1995-04-11
An electrophotographic toner having polymeric binder and a charge control agent selected from the group consisting of sulfonamides having the general structure: ##STR1## and metal salts thereof. T.sup.1 is independently selected from H, alkyl having from 1 to 20 carbons, cycloalkyl having from 3 to 18 carbons, and aromatic and heteroaromatic ring systems having a solitary ring or 2 to 3 linked or fused rings. R.sup.1 is O, S, N--H, N--R.sup.5, or N--L--R.sup.5 ; where L is a linking group selected from: ##STR2## and R.sup.5 is independently selected from alkyl having from 1 to 20 carbons, cycloalkyl having from 3 to 18 carbons, and aromatic and heteroaromatic ring systems having a solitary ring or 2 to 3 linked or fused rings. L.sup.1 and L.sup.2 are each independently a direct link or divalent alkyl or fluoroalkyl having from 1 to 20 carbons. R.sup.a and R.sup.b are each independently selected from the group consisting of H, F and ring systems having a solitary ring or from 2 to 3 fused or linked rings, said ring system having from 3 to 34 carbons, including carbons of substituent groups. If L.sup.1 is a direct link, R.sup.a is a ring system and if L.sup.2 is a direct link, R.sup.b is a ring system.
具有聚合物粘合剂和从磺酰胺组成的选择自下列群组的电子照相墨粉的电荷控制剂:##STR1##以及其金属盐。T.sup.1独立地选择自H,具有1到20个碳的烷基,具有3到18个碳的环烷基,以及具有单个环或2到3个连接或融合环的芳香和杂芳香环系统。R.sup.1是O,S,N-H,N-R.sup.5或N-L-R.sup.5;其中L是从下列选择的连接基团之一:##STR2##并且R.sup.5独立地选择自具有1到20个碳的烷基,具有3到18个碳的环烷基,以及具有单个环或2到3个连接或融合环的芳香和杂芳香环系统。L.sup.1和L.sup.2各自独立地是直接连接或具有1到20个碳的二价烷基或氟烷基。R.sup.a和R.sup.b各自独立地选择自H,F和具有单个环或从2到3个融合或连接的环系统,该环系统具有从3到34个碳,包括取代基的碳。如果L.sup.1是直接连接,则R.sup.a是环系统,如果L.sup.2是直接连接,则R.sup.b是环系统。