Two new crystal modifications of a diketopyrrolopyrrole pigment

Details Two new crystal modifications of a diketopyrrolopyrrole pigment Two new crystal modifications of a diketopyrrolopyrrole pigment

C - Chemistry, Metallurgy

09

B

C09B 57/00 (2006.01) C07D 487/04 (2006.01) C08K 5/3415 (2006.01) C09K 11/06 (2006.01) G03G 9/09 (2006.01) G03G 9/097 (2006.01)

Patent

CA 2152748

Diketopyrrolopyrrole of the formula Image (I) in its .beta.-modification and in its .gamma.-modification. Both the .beta.-modification and the .gamma.-modification are suitable as pigments for colouring high-molecular weight organic material. In comparison to the .alpha.-modification, the .beta.-modification shows a shift in shade towards yellowish-red. The .gamma.-modification gives brilliant orange colorations.

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