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从以下组中选择的电荷控制剂的电子照相墨粉:##STR1##以及其金属盐。其中,T.sup.1是独立选择自H、具有1至20个碳的烷基、具有3至18个碳的环烷基和具有单一环或2至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是从以下选择的连接基团:##STR2##而R.sup.5是独立选择自具有1至20个碳的烷基、具有3至18个碳的环烷基和具有单一环或2至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至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和具有单一环或从2至3个融合或连接环的环系统,所述环系统具有从3至34个碳,包括取代基团的碳。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。