Self-dispersing pigment and process of making and use of same

Details Self-dispersing pigment and process of making and use of same Self-dispersing pigment and process of making and use of same

2005-02-08

2005-02-08

Bell, Mark L. (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031650, C106S031900, C106S478000

Reexamination Certificate

active

06852156

ABSTRACT:
A process is provided in which a pigment is oxidated with ozone in an aqueous environment in which the mixture of ozone, water and pigment is subjected to a dispersive mixing operation; and/or the pH of the mixture is maintained in a range of 6-8, whereby the pigment is self-dispersing and preferably has an acid value of less than 3 μmoles/M2. Pigments from this process and ink jet inks containing the self-dispersing pigments, are also provided.

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