Composition containing polymer having ionic functional...

Details Composition containing polymer having ionic functional... Composition containing polymer having ionic functional...

2006-05-02

2006-05-02

Wu, David W. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S333000, C526S318000, C526S310000, C526S328000, C526S274000, C528S425000

Reexamination Certificate

active

07037996

ABSTRACT:
The present invention provides an ink composition containing a pigment dispersed uniformly in a solvent and a block polymer having an ionic functional group, an image-forming method and an image-forming apparatus employing the ink composition.The composition comprises a pigment, a solvent and a polymer having an ionic functional group, an acid residue, or a base residue at the terminal. The polymer having an ionic functional group, an acid residue, or a base residue at the terminal is a block polymer of ABX type having A, B, and X segments, wherein A and B are respectively a block segment having a vinyl ether structure as the repeating unit, and X is a terminal segment having an ionic functional group, an acid residue, or an base residue.

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Aoshima, S.; Hashimoto, K. J. Polym. Chem., A: Polym. Chem. 2001, 38, 746-750.

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