Process for conditioning azo pigments

Details Process for conditioning azo pigments Process for conditioning azo pigments

2006-03-28

2006-03-28

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Azo

C106S031800, C106S496000

Reexamination Certificate

active

07019121

ABSTRACT:
A process for conditioning azo pigment with surfactants of ethoxylate alkyl phenols in the presence of a strong alkali in the aqueous condition.

REFERENCES:
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patent: 4167503 (1979-09-01), Cipriani
patent: 4476052 (1984-10-01), Hunger et al.
patent: 4909853 (1990-03-01), Wienkenhover et al.
patent: 5298535 (1994-03-01), Kammer
patent: 5922123 (1999-07-01), Sandefur et al.
patent: 6013126 (2000-01-01), Shannon et al.

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