| 摘要 |
<p>A metal phthalocyanine pigment is prepared by reacting an o-dinitrile in which A is aryl or heterocyclic radical, X is halogen, HM NO2, NH2, SO3H, COOH, alkyl or alkoxy and n is 1-4, with a metal or metal compd. suitable for forming the central atom of a phthalocyanine pigment, at low temp. in the presence of a hydroxide, oxide, peroxide, or carbonate of an alkali or alkaline earth, metal as alkaline agent, and of a hydrophilic solvent containing OH gps.</p> |
