Patent No. U.S. 6,916,367 B2
Cabot Corporation has obtained a patent for a modified pigment preparation that is comprised of a pigment having attached a group comprising the formula -X-Sp-S-[PI], wherein X is an arylene, heteroarylene, or alkylene group, Sp is a spacer group, and PI represents a polymeric group comprising at least one ionic or ionizable group comprising the reaction product of a polymer having at least one anhydride, at least one activated carboxylic acid, or at least one carboxylic acid or salt thereof and an alkylamine, arylamine, or alcohol.
Cabot patents process for
Published February 9, 2006
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