Patent map and technology intelligence report. Organic Dyes Or Closely-related Compounds For Producing Dyes; Mordants; Lakes

Dyes with an anthracene nucleus not condensed with any other ring; Dyes with anthracene nucleus condensed with one or more carbocyclic rings; Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings; Anthracene dyes not provided for above; Indigoid dyes; Esters or ester-salts of leuco compounds of vat dyestuffs; Diaryl- or triarylmethane dyes; Oxyketone dyes; Acridine dyes; Azine dyes; Oxazine dyes; Thiazine dyes; Methine or polymethine dyes, e.g. cyanine dyes; Quinophthalones; Hydrazone dyes; Triazene dyes; Preparations in which the azo group is formed in any way other than by diazotising and coupling; Monoazo dyes prepared by diazotising and coupling; Disazo or polyazo dyes of the type A B C, A B C D, or the like, prepared by diazotising and coupling; Disazo or polyazo dyes of the types A K B, A B K C, or the like, prepared by diazotising and coupling; Disazo or polyazo dyes of the type A& D B prepared by diazotising and coupling; Azo dyes prepared by coupling the diazotised amine with itself; Other azo dyes prepared by diazotising and coupling; Special methods of performing the coupling reaction; Preparation of azo dyes from other azo compounds; Azo dyes containing onium groups; Complex metal compounds of azo dyes; Porphines; Azaporphines; Quinacridones; Sulfur dyes; Formazane dyes; Tetrazolium dyes; Nitro or nitroso dyes; Quinone imides; Azomethine dyes; Azo dyes containing other chromophoric systems; Other synthetic dyes of known constitution; Artificial dyes of unknown constitution; Dyes of natural origin prepared from natural sources; Miscellaneous.