Cationic titanium dioxide pigments

Details Cationic titanium dioxide pigments Cationic titanium dioxide pigments

2005-05-17

2008-11-18

Green, Anthony J (Department: 1793)

Compositions: coating or plastic

Materials or ingredients

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

C106S448000, C162S162000, C428S403000, C428S404000, C428S407000, C523S205000, C523S206000, C524S413000, C524S497000, C524S847000

Reexamination Certificate

active

07452416

ABSTRACT:
A composition containing cationic pigment particles includes titanium dioxide particles to which are bound a first water-soluble cationic polymer and cationic polymer latex particles. In some embodiments the cationic latex is made by treating an anionic latex with a second water-soluble cationic polymer, which may be the same as or different from the first water-soluble cationic polymer. The compositions may be used in papermaking applications, both for internal addition and or coatings.

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