Tetrachloroisoindolinone pigments

Commercially used tetrachloroisoindolinone pigments have the general chemical structure 39 [1] ... [Pg.403]

The following published examples illustrate some of the more recent developments in the field of tetrachloroisoindolinone pigments. [Pg.405]

Irgazin Yellow 2GLT-tetrachloroisoindolinone (Pigment Yellow 109, No. 56284 by... [Pg.240]

Commercially significant tetrachloroisoindolinone pigments may be depicted by the general structure 5, where the bridging amine moiety is represented by an aromatic diamine. [Pg.234]

Pugin and von der Crone also reported the following synthetic variations for tetrachloroisoindolinone pigments 5. [Pg.237]

Depending on in situ and post-synthetic treatment procedures, azomethine-type tetrachloroisoindolinone pigments may result in several crystal modifications, e.g., in a, p, and 6 types l Mono and disazomethine pigments featuring heterocyclic ring systems have also been claimed by several companies " l The heterocyclic structure 18 even features tivo pigment chromophores, namely the quinophthalone and the isoindolinone moieties. ... [Pg.239]

Pugin and von der Crone have carried out a detailed study of the structure-property relationship of tetrachloroisoindolinone pigments 4 in solution. [Pg.243]

Table 15-1 shows the maximum wavelength of light absorption and molecular extinction coefficient for a series of tetrachloroisoindolinone pigments of the general formula 4, in which the diamine component is varied. [Pg.243]

Table 1S-1 Influence of the bridging diamine component on the light absorption and color properties of tetrachloroisoindolinone pigments 4...

Table 1S-2 Comparison of the light absorption properties of mono- and dicondensed tetrachloroisoindolinone pigments (measured in DMF).

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