Process for producing dichlorodiketopyrrolopyrrole pigment...

Details Process for producing dichlorodiketopyrrolopyrrole pigment... Process for producing dichlorodiketopyrrolopyrrole pigment...

2007-07-19

2008-10-07

Green, Anthony J (Department: 1793)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S493000, C106S499000, C548S453000

Reexamination Certificate

active

07431762

ABSTRACT:
A process for producing dichlorodiketopyrrolopyrrole pigment of the α modification, which comprises wet milling crude dichlorodiketopyrrolopyrrole pigment wherein an α modification and a β modification coexist in the presence of a milling agent and a wetting agent, dichlorodiketopyrrolopyrrole pigment of the α modification obtained the process and a color composition which contains the pigment and a pigment carrier.

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European Patent Application No. EP 1 884 543 A1 and its corresponding European Search Report, [Feb. 2008].
Smith, Hugh M., “High Performance Pigments,” WILEY-VCH, 2002, pp. 174-175 Germany, no month.

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