| 摘要 |
<p>New ester-containing quaternary ammonium salts are provided having advantageous utility as charge control agents in electrostatographic toners and developers. The salts have the structure (I) wherein R1 is alkyl or aryl, R2 is alkyl or aryl, R3 is alkylene, arylene or arylenedialkylene, R4 is alkyl, aryl or aralkyl, R5 is alkyl or aryl, R6 is alkyl, aryl or aralkyl, R7 is alkyl or aryl, X is (II), Z- is an anion and n is an integer from 2 to 6. Such ester-containing quaternary ammonium salts also cause toner particles containing them to display lower fusing temperature and improved paper adhesion indexes.</p> |
