Pigment materials

Claim 1

A PROCESS OF PRODUCING A COLORED PIGMENT COMPRISING PRODUCING A THERMOPLASTIC, RESINOUS CONDENSATION PRODUCT, GRINDING SAID CONDENSATION PRODUCT TO FINELY DIVIDED FROM, AND INCORPORATING A COLORING MATERIAL IN THE CONDENSATION PRODUCT AT A STAGE UP TO AND INCLUDING ITS PRODUCTION IN FINELY DIVIDED FROM, SAID RESINOUS CONDENSATION PRODUCT BEING PREPARED BY COMPLETELY CO-CONDENSING, AT A TEMPERATURE NOT EXCEEDING 180*C., A FLUID REACTION MASS CONSISTING ESSENTIALLY OF A FIRST COMPONENT (A) SELECTED FROM THE CLASS CONSISTING OF (A) A MIXTURE OF AT LEAST ONE ALDEHYDE ENTIRELY SELECTED FROM THE CLASS CONSISTING OF FORMALDEHYDE AND PARAFORMALDEHYDE AND AT LEAST ONE AROMATIC MONOSULFONAMIDE HAVING RWO REACTIVE AMIDE HYDROGENS, WHERE THE SULFONAMIDO GROUP IS ATTACHED DIRECTLY TO THE AROMATIC NUCLEUS THROUGH THE SULFUR ATOM, AND (B) A THERMOPLASTIC CONDENSATION PRODUCT OF THE CONSTITUENTS OF MIXTURE (A), AND A SECOND COMPONENT (B) SELECTED FROM THE CLASS CONSISTING OF (C) A MIXTURE OF AT LEAST ONE ALDEHYDE ENTIRELY SELECTED FROM THE CLASS CONSISTING OF FORMALDEHYDE AND PARAFORMALDEHYDE AND AT LEAST ONE AMINOTRIAZINE HAVING AT LEAST TWO AMINO GROUPS, AND (D) A THERMOFUSIBLE PARTIAL CONDENSATION PRODUCT OF THE CONSTITUENTS OF MIXTURE (C), THE AMOUNT OF SAID SECOND COMPONENT (B) BEING BETWEEN ABOUT 17 AND 50 MOL PERCENT OF SAID FIRST COMPONENT (A), AND THE TOTAL AMOUNT OF SAID ALDEHYDE CONSTITUENTS BEING AT LEAST IN EXCESS OF THE TOTAL AMOUNT OF SAID SULFONAMIDE AND AMINOTRIAZINE CONSTITUENTS ON A MOLAR BASIS.