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Process for pigment modification



Published September 20, 2007
Patent No. U.S. 7,173,078 B2
Cabot Corporation has been granted a patent for a process for preparing a modified pigment having attached at least one organic group. It is comprised of reacting a dried mixture comprised of a pigment having attached at least one reactive group and a modifying agent under high intensity mixing conditions for a time and temperature sufficient to form the modified pigment, wherein the dried mixture is prepared by combining, in any order, a dispersion comprised of the pigment having attached at least one reactive group and the modifying agent to produce a wet mixture and drying the wet mixture.


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