Patent ID: 6562536
Filing Date: 2003-05-13
Classification: C08G,G03G

Abstract:
A charge-controlling agent for controlling chargeablility of toners comprising a polyamine having a repeating structure represented by the following general formula (I): wherein R1 to R4 each independently represents an alkyl group having 1 to 4 carbon atoms or hydrogen atom, n represents 0 or 1, andwhen n=0, R5 represents an alkylene group having 4 to 15 carbon atoms, which may have a substituent selected from the group consisting of alkyl groups having 1 to 4 carbon atoms and phenyl group, and when n=1, A represents a phenylene group in which the hydrogen atom(s) on the ring may be replaced by alkyl group(s) having 1 to 4 carbon atoms, and R5 and R6 each independently represents an alkylene group having 1 to 8 carbon atoms, provided that the sum of the carbon atoms of the alkylene groups represented by R5 and R6 ranges from 2 to 9.