| 摘要 |
PURPOSE:To directly produce the titled pigment only by a synthetic reaction without using pigmentation process, by adding a specific component in addition to a catalyst to a reaction system in the synthesis of copper phthalocyanine from phthalic acid, copper, etc., in an organic solvent. CONSTITUTION:The objective pigment is produced by reacting phthalic acid and/or its derivative with urea and copper (compound) in an organic solvent (e.g. nitrobenzene) in he presence of a catalyst (e.g. titanium tetrachloride) and a compound of formula (A and B are H, alkyl, allyl, etc.) usually at 150-250 deg.C. The compound of formula is e.g. pyromellitic acid anhydride diimide. The amount of the compound of formula I is usually 1-30wt.% based on the phthalic acid, etc.
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