Patent ID: 6524382
Filing Date: 2003-02-25
Classification: C03C,C07D,C09K,Y10T

Abstract:
A process for making a pigmented vitreous material from a liquid or dissolved transitions metal compound, wherein the liquid or dissolved transition metal compound reacts to form crosslinks between the liquid or dissolved transition metal atoms in the pigmented vitreous material, comprising preparing a solution comprising at least one dissolved compound of the formulaA(B)xâ€ƒâ€ƒ(I), in whichx is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine, diketopyrrolopyrrole or 3-methylidene-2,3-dihydro-indol-2-on 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 â€ƒwhere 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, and a liquid or dissolved transition metal compound; and heating the vitreous material so that the compound of the formula (I) is transformed into a pigment of the formula A(H)x (II), in which x has the same meaning as in formula (I).