| 摘要 |
<p>Pigment Yellow 180 having excellent transparency is produced by a process which comprises diazotizing 1,2-bis(2-aminophenoxy)ethane and coupling the resultant diazo ingredient with 5-acetoacetylaminobenzimidazolone, wherein the 5-acetoacetylaminobenzimidazolone used as a coupling ingredient is in the form of slurried fine particles.</p> |
