Water dispersion for ink-jet printing

Details Water dispersion for ink-jet printing Water dispersion for ink-jet printing

2005-07-28

2009-12-01

Niland, Patrick D (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C106S031130, C523S161000, C524S556000, C524S560000, C524S577000

Reexamination Certificate

active

07625958

ABSTRACT:
Provided are a water dispersion for ink-jet printing, wherein it is a water dispersion of water-insoluble graft polymer particles containing a colorant; the above graft polymer contains a principal chain having a constitutional unit derived from a vinyl base monomer and a side chain which is derived from a macromer containing an aromatic ring and having a polymerizable functional group at one end; both of the Log P values of the above principal chain and the above side chain are positive; and a difference between both falls in a specific range, and a water-based ink containing the same. The above water-based ink is excellent in a discharge stability, a storage stability, a heat stability and a water resistance.

REFERENCES:
patent: 6730780 (2004-05-01), Wakabayashi et al.
patent: 6852777 (2005-02-01), Nakano et al.
patent: WO 00/39226 (2000-06-01), None

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