New crystal phase of a benzimidazolone azo pigment

Callum McHugh (Inventor), Iain Frank Fraser (Inventor), Kim Wong (Inventor), Robert Elder (Inventor)

Research output: Patent


The invention relates to a new γ crystal modification of the pigment of formula (I) characterized by a CuKα X-ray powder diagram having maxima at 8.5, 14.7, 17.2, 26.0 and 28.4 2Θ, as well as to a process for its preparation and compositions comprising it.
Original languageEnglish
Patent numberWO/2008/090058
Publication statusPublished - 31 Jul 2008


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