Method of mass-coloring synthetic materials
AssigneeCiba Specialty Chemicals Corporation
InventorsJean-Marie Adam, Jean-Pierre Bacher
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Abstract
The present invention relates to a method of mass-coloring synthetic materials, which comprises using at least one pigment dye of formula (1) wherein R and R1 together form a phenyl or heteroaryl radical and R2 is hydrogen, or R1 and R2 together form a phenyl or heteroaryl radical and R is hydrogen, and the rings A and B may each independently of the other be substituted by C1-C4?alkyl, C1–C4alkoxy, halogen, —COOR3, —CONHR4 and/or by —SR5, wherein R3, R4 and R5 are each independently of the others hydrogen, C1–C4alkyl, C6–C12aryl or heteroaryl, to synthetic materials colored with such pigment dyes, and to novel pigment dyes of formula (3), wherein R6 is hydrogen or bromine
Claims5
A method of mass-colouring synthetic materials, which comprises incorporating at least one pigment dye of formula
- wherein
- R and R1 together form a heteroaryl radical of formula
- wherein
- X is —O—, —S—, —NR6— and R6 is hydrogen, C1–C12alkyl, or phenyl that is unsubstituted or substituted by hydroxy, halogen, C1–C4alkyl and/or by C1–C4alkoxy and R2 is hydrogen,
- or R1 and R2 together form a phenyl or heteroaryl radical of formula 2 and R is hydrogen, and the rings A and B may each independently of the other be substituted by C1–C4alkyl, C1–C4alkoxy, halogen, —COOR3, —CONHR4 and/or by —SR5, wherein R3, R4 and R5 are each independently of the others hydrogen, C1–C4alkyl, C6–C12aryl or heteroaryl.
A pigment dye of formula
- wherein
- R6 is hydrogen or bromine.
Dependencies are inferred from the claim text.