Abstract:
Disclosed herein is a tinted clearcoat composition including at least one binder resin (A) having functional groups (i), at least one curing agent (B) having functional groups (ii) being reactive with the functional groups (i), and at least one pigment (C), where the tinted clearcoat composition (TCC) is produced by (a) providing a clearcoat system (CS) including at least one binder resin (A) and at least one curing agent (B), (b) providing constituents of at least one pigment premixture (PP) including at least one pigment (C), (c) combining all or part of the clearcoat system (CS) with the constituents of the at least one pigment premixture (PP), (d) milling the mixture obtained in step (c), and (e) mixing, if applicable, the mixture obtained in step (d) with any yet missing parts of the tinted clearcoat composition (TCC).
Abstract:
Disclosed herein is a tinted clearcoat composition including at least one binder resin (A) having functional groups (i), at least one curing agent (B) having functional groups (ii) being reactive with the functional groups (i), and at least one pigment (C), where the tinted clearcoat composition (TCC) is produced by (a) providing a clearcoat system (CS) including at least one binder resin (A) and at least one curing agent (B), (b) providing at least one pigment premixture (PP) including at least one pigment (C), (c) combining all or part of the clearcoat system (CS) with at least one pigment premixture (PP), (d) milling the mixture obtained in step (c), and (e) mixing, if applicable, the mixture obtained in step (d) with any yet missing parts of the tinted clearcoat composition (TCC).
Abstract:
The present invention relates to a pigment paste comprising at least one aqueous dispersion comprising at least one copolymer, said copolymer being preparable by (i) initially charging an aqueous dispersion of at least one polyurethane, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane from (i), in which (a) a water-soluble initiator is used, (b) the olefinically unsaturated monomers are metered in such that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers used for polymerization, in the reaction solution is not exceeded over the entire reaction time, and (c) the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer, and further comprising a pigment, where the weight ratio of pigment to copolymer is at least 1.5. The invention further relates to the use of the copolymer for dispersion of pigments.