| abstract |
This invention relates to a process of preparing a perylene pigment compositions containing a reactive co-precipitated blend of(1) about 75 to about 99.9 mol %, relative to the pigment composition, of a compound having the formula (I)whereinR is hydrogen, C1-C6 alkyl, C5-C8 cycloalkyl, C7-C16 aralkyl, or C6-C10 aryl,A is C1-C6 alkyl, C1-C6 alkoxy, a sulfonyl group, amino, ammonium, hydroxy, nitro, or halogen, andm is zero or a number from 1 to 8; and(2) about 0.1 to about 25 mol %, relative to the pigment composition, of a perylene dicarboxamidine imide having the formula (II)whereinW is optionally substituted or modified C2-C3 alkylene. |