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US 2003/0205171 A1Published application
Process for preparing modified pigments
AssigneeCabot Corporation
InventorsCurtis E. Adams, Ronald J. Gambale
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Abstract
The present invention relates to a process for preparing a polymer-modified pigment comprising the step of: combining, in any order, at least one pigment having attached at least one nucleophilic group, at least one polymer comprising at least one carboxylic acid group or salt thereof, and at least one coupling agent. At least one mediator compound may also be used. The modified pigments can be used in applications such as inkjet ink applications.
Claims23
A process for preparing a polymer-modified pigment comprising the step of:
- combining, in any order, at least one pigment having attached at least one nucleophilic group, at least one polymer comprising at least one carboxylic acid group or salt thereof, and at least one coupling agent.
Dependencies are inferred from the claim text.