Pigments in Po with reologicas aperfeicoadas properties, process for its preparation and its use with a content of at least 5 of quinacridona insubstituida

摘要

PCT No. PCT/EP85/00700 Sec. 371 Date Aug. 11, 1986 Sec. 102(e) Date Aug. 11, 1986 PCT Filed Dec. 12, 1985 PCT Pub. No. WO86/03763 PCT Pub. Date Jul. 3, 1986.Powdered pigments which contain at least 5% of unsubstituted quinacridone and have improved rheological properties for use in paint systems on an alkyd/melamine, acrylic/melamine, acrylate/isocyanate or polyester/isocyanate basis, both of a conventional nature and also of a modern nature of the "high solids" type, onto which-as appropriate before, during or after finishing-1 to 20% by weight of the active substance of a paint additive, prepared by reacting polyisocyanurates which still carry free isocyanate groups and are based on tolylene diisocyanate, hexamethylene diisocyanate or mixtures thereof, with (1) aliphatic mono- or poly-(hydroxycarboxylic acid) C1-C20-alkyl esters (degree of polymerization 2-50), (2) polyethylene glycols (molecular weight 500-1,500) and (3) 5- or 6-membered, saturated or unsaturated heterocyclic compounds which contain at least 1 nitrogen atom in the ring and reactive amino or hydroxy-C1-C6-alkyl groups, until isocyanate groups are no longer detectable, has/have been applied, processes for their preparation and their use for pigmenting polymeric materials and for coloring paint systems.