申请人:Eastman Kodak Company
公开号:US05616797A1
公开(公告)日:1997-04-01
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.
一种具有聚合物粘合剂和选自磺酰胺的电荷控制剂的电子照相墨粉,其具有以下一般结构:##STR1## 和其金属盐。其中T.sup.1独立地选自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是从以下选取的连接基团:##STR2##,而R.sup.5是独立地选自具有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各自独立地选自H,F和具有单个环或2到3个融合或连接环的环系统,所述环系统具有从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。