Patent ID: 6767620
Filing Date: 2004-07-27
Classification: B27K,C01P,C08K,C09B,C09C,D06P,D21H,Y10T

Abstract:
A porous material comprising in its pores a meltable or solvent-soluble pigment precursor, wherein the pigment precursor is a compound of the formula (I)A(B)xâ€ƒâ€ƒ(I), in which x is an integer from 1 to 8,A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quino-phthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series which is attached to x groups B via one or more heteroatoms selected from the group consisting of N, O and S and forming part of the radical A, B is hydrogen or a group of the formula where at least one group B is not hydrogen and, if x is from 2 to 8, the groups B can be identical or different, and L is any suitable solubilizing group.