Synthesis of small particle size quinacridone of beta...

Details Synthesis of small particle size quinacridone of beta... Synthesis of small particle size quinacridone of beta...

2006-01-17

2006-01-17

Aulakh, Charanjit S. (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S056000

Reexamination Certificate

active

06987186

ABSTRACT:
The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.

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Ciba Specialty Chemicals Corp. Copending Application No. 10/714,269.
Ciba Specialty Chemicals Corp. Copending Application No. 10/714,270.

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