| 摘要 |
The invention relates to novel soluble pigment precursors possessing not only higher thermal stability but also improved solubility characteristics and to a process for mass colouration of high temperature polymers that utilizes these novel soluble pigment precursors.The pigment precursors of the invention are essentially of the formulawhere x 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 or diketopyrrolopyrrole series, this radical being linked with x B groups via one or more heteroatoms, these heteroatoms being selected from the group consisting of N, O and S and forming part of the radical A, andB is hydrogen or a group of the formulaalthough at least one B group is not hydrogen and when x is from 2 to 8 the B groups may be identical or different, E1, E2, R1, R2, R3, R4, R7, R11, R14, and G1 are as defined in the specification.
|
