Modified pigments and process for preparing modified pigments

Details Modified pigments and process for preparing modified pigments Modified pigments and process for preparing modified pigments

2005-07-12

2005-07-12

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S031600, C106S413000, C106S476000, C106S493000, C106S494000, C106S495000, C106S496000, C106S497000, C106S498000, C106S499000, C523S160000, C524S556000, C524S599000, C524S609000

Reexamination Certificate

active

06916367

ABSTRACT:
Processes for preparing modified pigments are described. In one embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiol reagent comprising at least one —SH group and at least two ionic or ionizable groups. In a second embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiopolymer comprising at least one —H group. Modified pigments are also described.

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