Main > PIGMENT > Quinacridone Pigments > Co.: CH. Cl > Patent > Claims Etc > Claim 1: Prepn. Process of Pigment, > Mixed-Crystal Pigments & Pigment > Prepns. on Basis of Linear > (Un)Substituted Quinacridones > Cyclize DiAnilinoTerephthalic Acid > with PolyPhosphoric Acid to give > Ring Closure Mixt. & Hydrolyzing > Mixt by Metering Mixt into Water or

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Mixt by Metering Mixt into Water or's subsections
Aqueous OrthoPhosphoric Acid to

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