Patent ID: 6074742
Filing Date: 2000-06-13
Classification: B29C,B32B,B33Y,B41M,C08J,D01D,D01F,G02B,G02F,G03C,Y10S,Y10T

Abstract:
A composite article comprising a first composition and a second composition, the first composition comprising a solid first matrix component having a non-liquid particle scattering colorant dispersed therein, and a second composition comprising a solid second matrix component having an electronic transition colorant, dye or pigment dispersed therein; the first composition being disposed on and substantially exterior to the second composition on at least one side of the article; wherein there exists at least one incident visible light wavelength and one incident light angle such that the first composition absorbs less than about 90% of the light incident on the article; wherein the absorption coefficient of the first composition is less than about 50% of that of the second composition at a wavelength in the visible region of the spectrum; wherein the highest absorption peak of the particle scattering colorant does not fall in the visible region of the spectrum; and wherein the particle scattering colorant has a refractive index that matches that of the first matrix component at a wavelength in the visible region of the spectrum and has an average particle size of less than about 2000 microns.