Abstract: Disclosed herein is a multilayer coating system present on a substrate and including at least two coating layers L1 and L2 different from one another, namely a first coating layer L1 applied over at least a portion of the substrate, and a second topcoat layer L2 applied over the first coating layer L1, where the topcoat layer L2 is formed from a coating composition including at least one block copolymer containing a backbone and at least two blocks B1 and B2 and side chains S1 and S2 including different polymeric moieties M1 and M2. Also disclosed herein are a method of preparing said multilayer coating system, a coated substrate obtainable therefrom, and a method of using a coating composition including the block copolymer for improving, in particular for increasing, the chromaticity of the multilayer coating system.

Abstract: Disclosed herein is a multilayer coating system present on a substrate and including at least three coating layers L1, L2 and L3 different from one another, namely a first pigmented coating layer L1 applied over at least a portion of the substrate, a second coating layer L2 applied over the first pigmented coating layer L1, and a third coating layer L3 applied over the second coating layer L2, where the second coating layer L2 is formed from a coating composition including at least one block copolymer containing a backbone and at least two blocks B1 and B2 and side chains S1 and S2 including different polymeric moieties M1 and M2. Also disclosed herein are a method of preparing said multilayer coating system, a coated substrate obtainable therefrom, and a method of using a coating composition including the block copolymer for improving the chromaticity of the multilayer coating system.

Abstract: A system and method for production and implementation of a photonic crystal forming, aqueous solution, may include: a block polymer mixture and at least one solvent, wherein the at least one solvent comprises water. The “color” of the photonic crystal solution may be set either through a single, or multiple, brush block copolymer mixtures (i.e., premixed coloring) or through layering of multiple layers of distinct single, or multiple, brush block copolymer mixtures. The system functions as an aqueous structural color (i.e., a photonic crystal) precursor, wherein applying the water-based color solution to a substrate, functions to provide a desired photonic crystal object arrangement possessing color reflective properties.

Abstract: Systems and methods used for or in connection to production and printing of a photonic crystal forming ink solution, which involve use of a block polymer mixture and optionally a solvent, wherein the color of the printed ink solution may be set either through a single or multiple block polymer mixtures (i.e. premixed coloring) or through printing multiple layers of distinct single or multiple block polymer mixtures (i.e. post print coloring). The composition(s) used by the systems and methods function as a structural color (i.e., a photonic crystal) precursor, wherein forming, loading, printing, and optional post-print processing of the ink solution on a substrate, function to provide a desired photonic crystal print object possessing reflective coloration properties.